CN105072700A - Random access method, random access device, random access control method and random access control device - Google Patents
Random access method, random access device, random access control method and random access control device Download PDFInfo
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- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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Abstract
The invention discloses a random access method, a random access device, a random access control method and a random access control device. By adopting the methods and the devices, the access priority of UE can be distinguished according to random access preambles of the UE, and a piece of high-priority service UE (such as clustering UE) can be accessed preferentially in the random access stage. The random access control method provided by the invention comprises the following steps: an eNode B receives random access preambles sent by multiple pieces of UE; the eNode B determines the access priority of each piece of UE according to the random access preamble of the UE; and the eNode B carries out random access control according to the access priority of each piece of UE.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of Stochastic accessing and control method thereof and device.
Background technology
Cluster typical services comprises individual calling, group calling, right of speech are seized, it is key index that fast call establishment time delay and quick right of speech seize time delay, for meeting the index request of fast delay time, Long Term Evolution (LongTermEvolution, LTE) base station is by increasing the special paging of cluster and Traffic Channel, priority scheduling is carried out to group service, becomes trunked base station.Trunked base station supports group service and characteristic, also supports common LTE business, to meet the requirement of various application scenarios simultaneously.
The function of trunked base station support not only comprises LTE trunked base station function, also support LTE public network base station functions simultaneously, at cluster UE and public network UE and under the scene of depositing, need the preferential access ensureing cluster UE, but for initial access process, before information 2 (MSG2) process, LTEUE and cluster UE cannot be distinguished, the access priority of such cluster UE and LTEUE is not just distinguished, and causes the priority access that cannot ensure cluster UE.
In addition, for the non-right of speech UE of group service at ECM-IDLE (aNASsignallingconnectionbetweenUEandnetworkisnotestablis hed, ECM-IDLE) during state, if need to carry out right of speech to seize, then first need, by random access procedure core network access, to complete right of speech and seize, if common UE also carries out random access procedure at same time point, will conflict be produced, cause cluster UE random access failure, affect the time delay that right of speech is seized.
UE random access procedure, comprise shown in Fig. 1 based on competition random access procedure, and shown in Fig. 2 based on non-competing random access procedure.Random access procedure is used in six kinds of events, and the object of Stochastic accessing makes UE and community (cell) connect and obtain uplink synchronous.Only obtain uplink synchronous, UE just can carry out uplink, therefore at the access procedure that UE is initial, Stochastic accessing is first flow process mutual with evolved base station (eNodeB), the above-mentioned Stochastic accessing based on competition and based in non-competing random access procedure, the information transmitted in first step is called as MSG1, and the information transmitted in second step is called as MSG2, and the information transmitted in the 3rd step is called as MSG3.
Random access procedure first step is transmitting random access preamble code (randomaccesspreamble).The Main Function of lead code (Preamble) tells that eNodeB has a random access request, and the propagation delay time making eNodeB can estimate between itself and UE, so that eNodeB calibrates uplink timer (uplinktiming), and calibration information is informed UE by timing advance order (timingadvancecommand).
Preamble is in the upper transmission of Packet Random Access Channel (PacketRandomAccessChannel, PRACH).ENodeB can pass through broadcast system information (SIB2) and notify all UE, allows on which running time-frequency resource, transmit preamble (specifically can be determined by prach-ConfigIndex and prach-FreqOffset field).
There are 64 available preamble sequences each community, and UE can select one of them (or being specified by eNodeB) to transmit on prach.These sequences can be divided into two parts, and a part is used for the Stochastic accessing based on competition, and another part is used for based on non-competing Stochastic accessing.Preamble sequence for the Stochastic accessing based on competition can be divided into two groups again: group A (GroupA) and group B (GroupB), wherein GroupB may not exist.
Preamble sequence for the Stochastic accessing based on competition is divided into the reason of GroupA and GroupB to be to add certain prior information, so that eNodeB distributes suitable ascending resource to Msg3 in random access request (RAR).If estimate that follow-up Msg3 may be larger during UE access, be greater than the size of GroupA, and path loss (PL) is less than:
P
CMAX,c–preambleInitialReceivedTargetPower–deltaPreambleMsg3–messagePowerOffsetGroupB
Wherein, P
cMAX, crepresent the peak power output of UE, preambleInitialReceivedTargetPower represents that Stochastic accessing initially accepts target power, deltaPreambleMsg3 represents the power offset between lead code and MSG3, and messagePowerOffsetGroupB represents the power excursion of leading code character B.
Then, the preamble in GroupB is used; Otherwise, use the preamble in GroupA.Such eNodeB just can know this Group belonging to preamble according to the preamble received, thus understands the roughly resource requirement of Msg3.If do not divided into groups, just should adopt higher mandate (grant) configuration, possible loss line efficiency on some.Preamble sequence in GroupA and GroupB not too large difference itself, only has their division to be only significant, for the resource requirement of telling eNodeB follow-up.
If what UE carried out is based on non-competing Stochastic accessing, the preamble that the handoff procedure of such as, UE under non-competing uses directly is specified by eNodeB.In order to avoid conflict, the preamble now used is the reserved preamble except GroupA and GroupB.
Briefly: eNodeB sends Random Access Channel configuration parameter (RACH-ConfigCommon) by broadcast (SIB2), tells the threshold value, power configuration etc. of the grouping of UEpreamble, Msg3 size.When UE initiates Stochastic accessing, according to possible Msg3 size and path loss (pathloss) etc., select suitable group.
The parameter configuration of random access procedure has been come by information unit (IE) RACH-ConfigCommon, and the inside contains the configuration of Stochastic accessing preamble.
Random access parameter configuration packet is contained in inside RadioResourceConfigCommonSIBIE radio-resource-configuration, RadioResourceConfigCommonSIBIE is included in inside SystemInformationBlockType2, and being handed down to UE, the parameter of the inside can have been configured by Operation and Maintenance.
Medium education (MAC) completes the time-frequency resource allocating of UE and the scheduling of UE message, time UEA (common LTEUE) and UEB (group service UE) is accessed simultaneously, i.e. same Transmission Time Interval (TransmittedTimeInterval, TTI) random access request (RandomAccessPreamble) message is received in, but when running time-frequency resource can only meet a UE, this time, MAC layer cannot distinguish priority UE, can only random schedule UE, if scheduled UEA, UEB access delay must be caused long, or access failure, therefore high priority business time delay is caused not meet, or access failure.
In sum, prior art is for the accidental access stage of initial access process, do not distinguish the priority of UE access, therefore can not the priority level of differentiated service, for the descending scheduling of MSG2 in random access procedure and the uplink scheduling of MSG3 resource, then the LTEUE with common is the same, therefore cause high-priority service UE (cluster UE) can not priority scheduling, when running time-frequency resource anxiety, common LTEUE access also can be caused, and the situation of group service failure.
Summary of the invention
Embodiments provide a kind of Stochastic accessing and control method thereof and device, in order to realize the access priority distinguishing UE according to the random access lead code of UE, and then making at accidental access stage, high-priority service UE (such as cluster UE) can priority access.
A kind of random access control method that the embodiment of the present invention provides, comprising:
Base station receives the random access lead code that multiple user equipment (UE) sends;
The access priority of this UE, for each UE, according to the random access lead code of this UE, is determined in described base station;
Stochastic accessing control, according to the access priority of each UE, is carried out in described base station.
By the method, base station receives the random access lead code that multiple UE sends; The access priority of this UE, for each UE, according to the random access lead code of this UE, is determined in described base station; Described base station is according to the access priority of each UE, carry out Stochastic accessing control, therefore the access priority distinguishing UE according to the random access lead code of UE is achieved, thus make at accidental access stage, high-priority service UE (such as cluster UE) can priority access, guarantee that the high-priority service such as group service preferentially obtain running time-frequency resource, carry out Stochastic accessing, and running time-frequency resource will be caused to exhaust because of the random access procedure of common UE, affect the right of speech preemption processes of cluster UE, and then affect group service.
Preferably, described base station, for each UE, according to the random access lead code of this UE, is determined the access priority of this UE, is specifically comprised:
Described base station is for each UE, according to the random access lead code of this UE, determine the lead code scope belonging to random access lead code of this UE, according to the lead code scope preset and the corresponding relation of access priority, determine the access priority of this UE corresponding to lead code scope belonging to random access lead code of this UE.
Preferably, before described base station receives the random access lead code of multiple user equipment (UE) transmission, the method also comprises:
The indication information of the lead code scope belonging to the lead code being used to indicate UE and determining this UE is informed to described UE by described base station.
Preferably, described indication information is lead code scale factor, be used to indicate UE when receiving this lead code scale factor, utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected, and this UE selects a lead code to send to described base station as random access lead code from this lead code scope.
A kind of accidental access method that the embodiment of the present invention provides, comprising:
User equipment (UE), according to the access priority of this UE, determines random access lead code;
Described random access lead code is sent to base station by described UE.
Preferably, described UE, according to the access priority of this UE, determines random access lead code, specifically comprises:
The lead code scope that described UE is corresponding according to the access priority of this UE, selects a random access lead code from this lead code scope.
Preferably, described UE is according to the access priority of this UE, and before determining random access lead code, the method also comprises:
Described UE receive described base station send be used to indicate the indication information that UE determines the lead code scope belonging to lead code of this UE, determine described lead code scope according to this indication information.
Preferably, described indication information is lead code scale factor; Described UE determines described lead code scope according to this indication information, specifically comprises:
Described UE utilizes this lead code scale factor, determines that this UE needs the lead code scope belonging to lead code selected.
A kind of Stochastic accessing control device that the embodiment of the present invention provides, comprising:
Transmission unit, for receiving the random access lead code that multiple user equipment (UE) sends;
Priority determining unit, for for each UE, according to the random access lead code of this UE, determines the access priority of this UE;
Control unit, for the access priority according to each UE, carries out Stochastic accessing control.
Preferably, described priority determining unit, specifically for:
For each UE, according to the random access lead code of this UE, determine the lead code scope belonging to random access lead code of this UE, according to the lead code scope preset and the corresponding relation of access priority, determine the access priority of this UE corresponding to lead code scope belonging to random access lead code of this UE.
Preferably, described transmission unit before receiving the random access lead code that multiple user equipment (UE) sends, also for:
The indication information of the lead code scope belonging to the lead code being used to indicate UE and determining this UE is informed to described UE.
Preferably, described indication information is lead code scale factor, be used to indicate UE when receiving this lead code scale factor, utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected, and this UE selects a lead code to send to described base station as random access lead code from this lead code scope.
A kind of accidental access device that the embodiment of the present invention provides, comprising:
Determining unit, for the access priority according to user equipment (UE), determines random access lead code;
Transmission unit, for sending to base station by described random access lead code.
Preferably, described determining unit, specifically for:
The lead code scope corresponding according to the access priority of this UE, selects a random access lead code from this lead code scope.
Preferably, described transmission unit is also for the indication information of the lead code scope belonging to being used to indicate of receiving that described base station the sends lead code that UE determines this UE;
Described determining unit according to the access priority of this UE, before determining random access lead code, also for: according to described indication information, determine described lead code scope.
Preferably, described indication information is lead code scale factor; When described determining unit determines described lead code scope according to this indication information, specifically for:
Utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected.
Accompanying drawing explanation
Fig. 1 is the random access procedure schematic diagram based on competition of the prior art;
Fig. 2 is of the prior art based on non-competing random access procedure schematic diagram;
The schematic flow sheet of a kind of random access control method that Fig. 3 provides for the embodiment of the present invention;
The schematic flow sheet of a kind of accidental access method that Fig. 4 provides for the embodiment of the present invention;
A kind of lead code priority dividing mode schematic diagram that Fig. 5 provides for the embodiment of the present invention;
The structural representation of a kind of Stochastic accessing control device that Fig. 6 provides for the embodiment of the present invention;
The structural representation of a kind of accidental access device that Fig. 7 provides for the embodiment of the present invention.
Embodiment
Embodiments provide a kind of Stochastic accessing and control method thereof and device, in order to realize the access priority distinguishing UE according to the random access lead code of UE, and then make at accidental access stage, high-priority service UE (such as cluster UE) can priority access, guarantee that the high-priority service such as group service preferentially obtain running time-frequency resource, carry out Stochastic accessing, and running time-frequency resource will be caused to exhaust because of the random access procedure of common UE, affect the right of speech preemption processes of cluster UE, and then affect group service.
See Fig. 3, at network side, a kind of random access control method that the embodiment of the present invention provides, comprising:
S101, base station receive the random access lead code that multiple user equipment (UE) sends;
The access priority of this UE, for each UE, according to the random access lead code of this UE, is determined in S102, described base station;
Such as, the lead code of making an appointment in particular range, the access priority of corresponding UE is higher, therefore when the random access lead code receiving UE transmission belongs to this particular range, then this UE of priority access, so this UE preferentially can take running time-frequency resource, and the business (such as group service) of oneself is preferentially carried out.Wherein, described particular range can be consult to confirm with UE in advance, also can be that network side prior notice is to UE.Concrete advice method can be such as broadcast.
Described access priority also can be divided into multiple, divides according to different service types, such as, can be divided into two or three, or more kinds of, so the corresponding specific lead code scope of each priority.
Stochastic accessing control, according to the access priority of each UE, is carried out in S103, described base station.
By the method, base station receives the random access lead code that multiple UE sends; The access priority of this UE, for each UE, according to the random access lead code of this UE, is determined in described base station; Described base station is according to the access priority of each UE, carry out Stochastic accessing control, therefore the access priority distinguishing UE according to the random access lead code of UE is achieved, thus make at accidental access stage, high-priority service UE (such as cluster UE) can priority access, guarantee that the high-priority service such as group service preferentially obtain running time-frequency resource, carry out Stochastic accessing, and running time-frequency resource will be caused to exhaust because of the random access procedure of common UE, affect the right of speech preemption processes of cluster UE, and then affect group service.
Preferably, described base station, for each UE, according to the random access lead code of this UE, is determined the access priority of this UE, is specifically comprised:
Described base station is for each UE, according to the random access lead code of this UE, determine the lead code scope belonging to random access lead code of this UE, according to the lead code scope preset and the corresponding relation of access priority, determine the access priority of this UE corresponding to lead code scope belonging to random access lead code of this UE.
Preferably, before described base station receives the random access lead code of multiple user equipment (UE) transmission, the method also comprises:
The indication information of the lead code scope belonging to the lead code being used to indicate UE and determining this UE is informed to described UE by described base station.
Preferably, described indication information is lead code scale factor, be used to indicate UE when receiving this lead code scale factor, utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected, and this UE selects a lead code to send to described base station as random access lead code from this lead code scope.
Wherein, utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected, such as: from lead code 0, according to lead code scale factor, 64 lead codes are divided into two parts, the lead code that front portion uses for common UE, rear portion lead code is the lead code that cluster UE uses.Suppose from 0, identify this 64 lead codes, be respectively lead code 0 to lead code 63; Lead code scale factor is 3/4, then the lead code scope that uses for common UE of lead code 0 to lead code 47, the lead code scope that lead code 48 to lead code 63 uses for cluster UE.
Correspondingly, in end side, see Fig. 4, a kind of accidental access method that the embodiment of the present invention provides, comprising:
S201, user equipment (UE), according to the access priority of this UE, determine random access lead code;
Described random access lead code is sent to base station by S202, described UE.
Preferably, described UE, according to the access priority of this UE, determines random access lead code, specifically comprises:
The lead code scope that described UE is corresponding according to the access priority of this UE, selects a random access lead code from this lead code scope.
Preferably, described UE is according to the access priority of this UE, and before determining random access lead code, the method also comprises:
Described UE receive described base station send be used to indicate the indication information that UE determines the lead code scope belonging to lead code of this UE, determine described lead code scope according to this indication information.
Preferably, described indication information is lead code scale factor; Described UE determines described lead code scope according to this indication information, specifically comprises:
Described UE utilizes this lead code scale factor, determines that this UE needs the lead code scope belonging to lead code selected.
As can be seen here, in the embodiment of the present invention, by increase inside Stochastic accessing configuration parameter by be used to indicate UE and determine this UE lead code belonging to the indication information of lead code scope, i.e. lead code scale factor, UE is made to be divided the lead code selected by lead code scale factor, and network side based on this lead code by the priority area of service access separately, group service or general service can be distinguished by the UE lead code that MSG1 carries in the random access procedure like this, provide information for follow-up priority scheduling and frequency spectrum resource distribute.
In the embodiment of the present invention, be used to indicate UE and determine that the information unit (IE) of the indication information of the lead code scope belonging to lead code of this UE is defined as follows:
Wherein, ratio3/4 is equivalent to the value of lead code scale factor be the value that 3/4, ratio1/2 is equivalent to lead code scale factor is 1/2, by that analogy, it should be noted that, for ratio0, be equivalent to do not have high-priority service, lead code scale factor is 0, without the need to priority access.
According in the lead code scope that scale factor divides, the UE of other business of high priority uses the right-hand component (the mark value of lead code is the part of high value) of lead code, such as lead code 48 to lead code 63, the UE of general service uses the left-hand component (the mark value of lead code is the part of lower numerical value) of lead code, such as lead code 0 to lead code 47.
In random access channel configuration information unit (RACH-ConfigCommonIE), the information unit of lead code scale factor can be added, such as: RACH-ConfigCommonIE is amended as follows, with addition of optional IE, the i.e. information unit (ratioofRA-HighPriorityPreambles) of lead code scale factor, uses red font mark.
In above-mentioned RACH-ConfigCommonIE, by the ratio that this IE of ratioofRA-HighPriorityPreambles indicates the UE of high-priority service to use in GroupA, GroupB or non-competing random access lead code, according to practical business situation, non-competing random access lead code can use, in addition, if this ratioofRA-HighPriorityPreamblesIE does not occur, so, then lead code is not used to carry out the differentiation of service priority.
Lead code priority divides, the i.e. division of lead code scope, see Fig. 5, if the lead code of 64 in each community to be divided into lead code three part of GroupA, GroupB and non-competing access, then every part is divided into the lead code scope of general service UE use and the lead code scope of high-priority service UE use respectively, the dividing mode of concrete every part, such as, comprise:
GroupA lead code service priority cut-point=sizeofRA-PreambleGroupA (1-ratioofRA-HighPriorityPreambles);
GroupB lead code service priority cut-point=sizeofRA-PreambleGroupA+ (numberOfRA-Preambles-sizeofRA-PreamblesGroupA) * (1-ratioofRA-HighPriorityPreambles);
Lead code service priority cut-point=numberOfRA-Preambles+ (64-numberOfRA-Preambles) * (1-ratioofRA-HighPriorityPreambles) of non-competing access;
Wherein, sizeofRA-PreambleGroupA represents the random access lead code number of GroupA, ratioofRA-HighPriorityPreambles represents Stochastic accessing high priority lead code ratio, i.e. lead code scale factor, numberOfRA-Preambles represents random access lead code number, and 64 deduct the lead code number that numberOfRA-Preambles then represents non-competing access.
Such as, the random access lead code number of GroupA is 48, numberOfRA-Preambles value is 50, then the random access lead code of GroupA be from the random access lead code of lead code 0 to lead code 47, GroupB be from lead code 48 and lead code 49.Suppose that ratioofRA-HighPriorityPreambles is 1/2, then, in GroupA, lead code 0 to lead code 23 is used by the UE of general service, and lead code 24 to lead code 47 is used by the UE of high-priority service (such as group service).GroupA lead code service priority cut-point is 24, and the initial lead code that namely in GroupA, the UE of high-priority service uses is lead code 24.In GroupB, lead code 48 is used by the UE of general service, and lead code 49 is used by the UE of high-priority service (such as group service).GroupB lead code service priority cut-point is 49, and the initial lead code that namely in GroupB, the UE of high-priority service uses is lead code 49.In the lead code of non-competing access, lead code 50 to lead code 56 is used by the UE of general service, and lead code 57 to lead code 63 is used by the UE of high-priority service (such as group service).The lead code service priority cut-point of non-competing access is 57, i.e. the initial lead code that the UE of the high-priority service of non-competing access uses is lead code 57.
With said method accordingly, see Fig. 6, in base station side, a kind of Stochastic accessing control device that the embodiment of the present invention provides, comprising:
Transmission unit 11, for receiving the random access lead code that multiple user equipment (UE) sends;
Priority determining unit 12, for for each UE, according to the random access lead code of this UE, determines the access priority of this UE;
Control unit 13, for the access priority according to each UE, carries out Stochastic accessing control.
Preferably, described priority determining unit, specifically for:
For each UE, according to the random access lead code of this UE, determine the lead code scope belonging to random access lead code of this UE, according to the lead code scope preset and the corresponding relation of access priority, determine the access priority of this UE corresponding to lead code scope belonging to random access lead code of this UE.
Preferably, described transmission unit before receiving the random access lead code that multiple user equipment (UE) sends, also for:
The indication information of the lead code scope belonging to the lead code being used to indicate UE and determining this UE is informed to described UE.
Preferably, described indication information is lead code scale factor, be used to indicate UE when receiving this lead code scale factor, utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected, and this UE selects a lead code to send to described base station as random access lead code from this lead code scope.
See Fig. 7, in UE side, a kind of accidental access device that the embodiment of the present invention provides, comprising:
Determining unit 21, for the access priority according to user equipment (UE), determines random access lead code;
Transmission unit 22, for sending to base station by described random access lead code.
Preferably, described determining unit, specifically for:
The lead code scope corresponding according to the access priority of this UE, selects a random access lead code from this lead code scope.
Preferably, described transmission unit is also for the indication information of the lead code scope belonging to being used to indicate of receiving that described base station the sends lead code that UE determines this UE;
Described determining unit according to the access priority of this UE, before determining random access lead code, also for: according to described indication information, determine described lead code scope.
Preferably, described indication information is lead code scale factor; When described determining unit determines described lead code scope according to this indication information, specifically for:
Utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected.
Above unit, all can be realized by entity apparatus such as processors.
In sum, the technical scheme that the embodiment of the present invention provides, distinguishes the priority level of UE business by random access lead code.By increasing lead code scale factor differentiated service priority level, the characteristic having expanded lead code uses.Completed the differentiation of priority by the operating characteristic expanding lead code, meet demand and the requirement of UE access delay of UE priority access.Further, the embodiment of the present invention considers the compatibility of agreement, and the upgrading facilitating equipment realizes, and the IE of definition is optional IE, decreases the coupling of interoffice equipment.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store and optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (16)
1. a random access control method, is characterized in that, the method comprises:
Base station receives the random access lead code that multiple user equipment (UE) sends;
The access priority of this UE, for each UE, according to the random access lead code of this UE, is determined in described base station;
Stochastic accessing control, according to the access priority of each UE, is carried out in described base station.
2. method according to claim 1, is characterized in that, described base station, for each UE, according to the random access lead code of this UE, is determined the access priority of this UE, specifically comprised:
Described base station is for each UE, according to the random access lead code of this UE, determine the lead code scope belonging to random access lead code of this UE, according to the lead code scope preset and the corresponding relation of access priority, determine the access priority of this UE corresponding to lead code scope belonging to random access lead code of this UE.
3. method according to claim 2, is characterized in that, before described base station receives the random access lead code of multiple user equipment (UE) transmission, the method also comprises:
The indication information of the lead code scope belonging to the lead code being used to indicate UE and determining this UE is informed to described UE by described base station.
4. method according to claim 3, it is characterized in that, described indication information is lead code scale factor, be used to indicate UE when receiving this lead code scale factor, utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected, and this UE selects a lead code to send to described base station as random access lead code from this lead code scope.
5. an accidental access method, is characterized in that, the method comprises:
User equipment (UE), according to the access priority of this UE, determines random access lead code;
Described random access lead code is sent to base station by described UE.
6. method according to claim 5, is characterized in that, described UE, according to the access priority of this UE, determines random access lead code, specifically comprises:
The lead code scope that described UE is corresponding according to the access priority of this UE, selects a random access lead code from this lead code scope.
7. method according to claim 6, is characterized in that, described UE is according to the access priority of this UE, and before determining random access lead code, the method also comprises:
Described UE receive described base station send be used to indicate the indication information that UE determines the lead code scope belonging to lead code of this UE, determine described lead code scope according to this indication information.
8. method according to claim 7, is characterized in that, described indication information is lead code scale factor; Described UE determines described lead code scope according to this indication information, specifically comprises:
Described UE utilizes this lead code scale factor, determines that this UE needs the lead code scope belonging to lead code selected.
9. a Stochastic accessing control device, is characterized in that, comprising:
Transmission unit, for receiving the random access lead code that multiple user equipment (UE) sends;
Priority determining unit, for for each UE, according to the random access lead code of this UE, determines the access priority of this UE;
Control unit, for the access priority according to each UE, carries out Stochastic accessing control.
10. device according to claim 9, is characterized in that, described priority determining unit, specifically for:
For each UE, according to the random access lead code of this UE, determine the lead code scope belonging to random access lead code of this UE, according to the lead code scope preset and the corresponding relation of access priority, determine the access priority of this UE corresponding to lead code scope belonging to random access lead code of this UE.
11. devices according to claim 10, is characterized in that, described transmission unit before receiving the random access lead code that multiple user equipment (UE) sends, also for:
The indication information of the lead code scope belonging to the lead code being used to indicate UE and determining this UE is informed to described UE.
12. devices according to claim 11, it is characterized in that, described indication information is lead code scale factor, be used to indicate UE when receiving this lead code scale factor, utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected, and this UE selects a lead code to send to described base station as random access lead code from this lead code scope.
13. 1 kinds of accidental access devices, is characterized in that, comprising:
Determining unit, for the access priority according to user equipment (UE), determines random access lead code;
Transmission unit, for sending to base station by described random access lead code.
14. devices according to claim 13, is characterized in that, described determining unit, specifically for:
The lead code scope corresponding according to the access priority of this UE, selects a random access lead code from this lead code scope.
15. devices according to claim 14, is characterized in that, described transmission unit is also for the indication information of the lead code scope belonging to being used to indicate of receiving that described base station the sends lead code that UE determines this UE;
Described determining unit according to the access priority of this UE, before determining random access lead code, also for: according to described indication information, determine described lead code scope.
16. devices according to claim 15, is characterized in that, described indication information is lead code scale factor; When described determining unit determines described lead code scope according to this indication information, specifically for:
Utilize this lead code scale factor, determine that this UE needs the lead code scope belonging to lead code selected.
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