CN106304383A

CN106304383A - A kind of method of Stochastic accessing, base station and subscriber equipment

Info

Publication number: CN106304383A
Application number: CN201510268141.6A
Authority: CN
Inventors: 杜婷
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-05-22
Filing date: 2015-05-22
Publication date: 2017-01-04
Also published as: WO2016188158A1

Abstract

The invention discloses a kind of method of Stochastic accessing, base station and subscriber equipment, including: after cluster network starts, the base station subscriber equipment signalling of bouquet network information in the community covered；Wherein, the subscriber equipment in the community covered includes plain edition subscriber equipment and cluster type subscriber equipment；Cluster type subscriber equipment determines after receiving cluster network information to be stopped using common PRACH configuration index table and begins to use default special PRACH configuration index table；Base station sends PRACH configuration parameter, and PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configuration index number；The running time-frequency resource of required use when cluster type subscriber equipment determines the random access guiding of transmission according to PRACH configuration parameter and default special PRACH configuration index table, base station detects the random access guiding that cluster type subscriber equipment sends on corresponding running time-frequency resource, and sends accidental access response message to cluster type subscriber equipment.

Description

A kind of method of Stochastic accessing, base station and subscriber equipment

Technical field

The present invention relates to communication technology, a kind of method of Stochastic accessing, base station and subscriber equipment.

Background technology

Trunked communication system is in order to meet the demands such as industry user's command scheduling and to develop, and it is towards spy Determine the private wireless communication system of sector application.Trunked communication system is different from public's radio mobile communication Being mainly characterized in that: in addition to can providing the bidirectional call function of mobile phone of system, may also provide and be Group's (group) in system exhales, generally calls, and even sets up call priority level, it is possible to carry out priority level and exhale Cry, the general communication not available for mobile phone such as urgent call；May also provide in dynamic reorganization, system The specific functions such as VPN.These features be particularly suitable for police, state security department's private communication and The command schedulings such as airport, customs, public transportation, rescue and relief work need, so, trunked communication system exists Government department, public safety, emergency communication, electric power, civil aviaton, petrochemical industry, army and enterprise etc. lead Territory has a wide range of applications, and is a kind of multipurpose, dynamical wireless communication system, and all over the world Private wire network outside defining independent of public mobile network.

But, along with frequency spectrum resource is the most in short supply, the most surging to the cry of public network cluster.Public network cluster Refer to launch specific cluster communication service on the basis of existing common mobile communication network.For guaranteeing cluster The ability that type subscriber equipment can persistently be conversed in the case of carrying out key business, at present, standardizing body 3GPP proposes serving wireless access network pattern (the Isolated E-UTRAN that public safety isolates Operation, IOPS) demand, so-called IOPS network schemer refers to when base station is disconnected in the loop or returns Break down and can not remain to carry for cluster type subscriber equipment in the case of normal transmission signaling, data in road Communication capacity for certain rank.After IOPS network schemer requires that this network schemer starts, only to cluster type Subscriber equipment provides service, does not allow plain edition subscriber equipment to access this network schemer.

At present, existing technical scheme there is problems in that, base station side is not after cluster network starts Can determine that the subscriber equipment that request accesses belongs to plain edition subscriber equipment or cluster type subscriber equipment, thus Cannot accomplish only the access request of cluster type subscriber equipment to be responded.

Summary of the invention

In order to solve above-mentioned technical problem, embodiments provide a kind of method of Stochastic accessing, base Stand and subscriber equipment, it is possible to after cluster network starts, it is ensured that base station side is only to cluster type subscriber equipment Access request respond.

In order to reach the object of the invention, a kind of method embodiments providing Stochastic accessing, bag Include:

After cluster network starts, base station subscriber equipment in the community covered is broadcasted and/or with proprietary The mode signalling of bouquet network information of signaling；Wherein, the subscriber equipment in the community of described covering includes general Flow-through subscriber equipment and cluster type subscriber equipment；Described cluster network information is used for notifying that described cluster type is used Family equipment is stopped using General Physics RACH PRACH configuration index table and begins to use default Special PRACH configuration index table；

Described base station broadcast and/or send PRACH configuration parameter in the way of proprietary signaling, described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configuration index number；

When described base station detects the random access guiding that subscriber equipment sends on predetermined running time-frequency resource Time, described base station sends accidental access response message to described subscriber equipment；

Wherein, described predetermined running time-frequency resource be by described base station according to described PRACH configuration index number, Described PRACH frequency domain resource side-play amount and described default special PRACH configuration index table determine, Described subscriber equipment belongs to described cluster type subscriber equipment, and described random access guiding is to be set by described user For send on described predetermined running time-frequency resource.

Further, described cluster network information includes: the identification information of described cluster network；When described After the identification information of described cluster network read by cluster type subscriber equipment, determine that described cluster network has been turned on, Stop using described common PRACH configuration index table and begin to use the described special PRACH of presetting to configure Concordance list.

Further, the identification information of described cluster network is the public land shifting that described cluster network is special Dynamic network identity PLMN ID.

Further, described default special RACH configuration index table is exclusively used in described cluster network, described Common PRACH configuration index table for general network, described preset special RACH configuration index table with The running time-frequency resource of the random access guiding of same index number instruction in described common PRACH configuration index table Differ.

Further, described base station subscriber equipment in the community covered is broadcasted and/or with proprietary signaling The mode signalling of bouquet network information include:

Described base station subscriber equipment broadcast transmission system chunk SIB in the community covered, wherein, Described SIB includes described cluster network information；And/or,

Described cluster network information is inserted radio resource control RRC message and to being covered by described base station The subscriber equipment being in connected state in community sends described RRC information.

Further, described base station broadcast and/or send PRACH configuration parameter in the way of proprietary signaling Including:

Described base station broadcast sends system information block SIB, described SIB and includes described PRACH configuration ginseng Number；And/or,

Described PRACH configuration parameter is inserted radio resource control RRC message and to being covered by described base station The subscriber equipment being in connected state in the community of lid sends described RRC information.

Further, described SIB is SIB2.

The embodiment of the present invention additionally provides the method for another kind of Stochastic accessing, and described method includes:

When subscriber equipment belongs to cluster type subscriber equipment, described subscriber equipment read base station broadcast and/or with Cluster network information that the mode of proprietary signaling sends also is stopped using commonly according to described cluster network information Physical Random Access Channel PRACH configuration index table and begin to use default special PRACH configuration index Table；

Described subscriber equipment reads described base station broadcast and/or the PRACH sent in the way of proprietary signaling Configuration parameter, described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configuration index number；

Described subscriber equipment is according to described PRACH configuration index number, the skew of described PRACH frequency domain resource Amount and described presetting when special PRACH configuration index table determines transmission random access guiding need to use Running time-frequency resource；

Described subscriber equipment sends random access guiding on described running time-frequency resource；

Described subscriber equipment receives the accidental access response message that described base station sends.

Embodiments providing a kind of base station, described base station includes:

First transmitting element, after starting when cluster network, the subscriber equipment in the community covered Broadcast and/or the signalling of bouquet network information in the way of proprietary signaling；Wherein, in the community of described covering Subscriber equipment includes plain edition subscriber equipment and cluster type subscriber equipment；Described cluster network information is used for leading to Know that General Physics RACH PRACH configuration index table stopped using by described cluster type subscriber equipment And begin to use default special PRACH configuration index table；

Second transmitting element, for broadcasting and/or sending PRACH configuration parameter in the way of proprietary signaling, Described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configure rope Quotation marks；

Detector unit, for when detecting the Stochastic accessing that subscriber equipment sends on predetermined running time-frequency resource Time leading, send accidental access response message to described subscriber equipment；Wherein, described predetermined time-frequency money Source is according to described PRACH configuration index number, described PRACH frequency domain resource side-play amount by described base station And described preset special PRACH configuration index table and determine, described subscriber equipment belongs to described cluster type Subscriber equipment, described random access guiding is to be sent out on described predetermined running time-frequency resource by described subscriber equipment Send.

Further, described first transmitting element specifically for:

Further, described second transmitting element specifically for:

Further, described SIB is SIB2.

Embodiments providing a kind of subscriber equipment, described subscriber equipment includes:

First reads unit, for when described subscriber equipment belongs to cluster type subscriber equipment, reads base station Broadcast and/or the cluster network information that sends in the way of proprietary signaling are also stopped according to described cluster network information Only use General Physics RACH PRACH configuration index table and begin to use default special PRACH configuration index table；

Second reads unit, for reading described base station broadcast and/or sending in the way of proprietary signaling PRACH configuration parameter, described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount And PRACH configuration index number；

Determine unit, for inclined according to described PRACH configuration index number, described PRACH frequency domain resource Shifting amount and described presetting when special PRACH configuration index table determines transmission random access guiding need to make Running time-frequency resource；

Transmitting element, for sending random access guiding on described running time-frequency resource；

Receive unit, for receiving the accidental access response message that described base station sends.

A kind of method of Stochastic accessing, base station and the subscriber equipment that the embodiment of the present invention provides, works as cluster After network startup, base station subscriber equipment in the community covered by broadcast and or dedicated signaling in the way of The signalling of bouquet network information；Wherein, the subscriber equipment in the community of described covering includes that plain edition user sets Standby and cluster type subscriber equipment；Described cluster network information is used for notifying that described cluster type subscriber equipment stops Use General Physics RACH PRACH configuration index table and begin to use default special PRACH Configuration index table；Described base station broadcast and/or send PRACH configuration parameter in the way of proprietary signaling, Described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configure rope Quotation marks；Described cluster type subscriber equipment is according to described PRACH configuration index number, described PRACH frequency domain When resource offset and described default special PRACH configuration index table determine transmission random access guiding Need the running time-frequency resource used；Described cluster type subscriber equipment sends Stochastic accessing on described running time-frequency resource Leading；When described base station, to detect that on described running time-frequency resource described cluster type subscriber equipment sends random During access lead, described base station sends accidental access response message to described cluster type subscriber equipment.Pass through The technical scheme that the present invention provides, it is possible to after cluster network starts, it is ensured that cluster type is only used by base station side The access request of family equipment responds.

Other features and advantages of the present invention will illustrate in the following description, and, partly from froming the perspective of Bright book becomes apparent, or understands by implementing the present invention.The purpose of the present invention is excellent with other Point can be realized by structure specifically noted in description, claims and accompanying drawing and be obtained ?.

Accompanying drawing explanation

Accompanying drawing is used for providing being further appreciated by technical solution of the present invention, and constitutes one of description Point, it is used for explaining technical scheme together with embodiments herein, is not intended that the present invention The restriction of technical scheme.

Fig. 1 is the configuration schematic diagram of PRACH time slot in existing LTE system；

Fig. 2 is the composition schematic diagram of Preamble in existing LTE system；

Fig. 3 is the composition schematic diagram of four kinds of forms of Preamble in existing LTE system；

The schematic flow sheet of the method for a kind of Stochastic accessing that Fig. 4 provides for the embodiment of the present invention；

Fig. 5 is the schematic flow sheet of the method for the another kind of Stochastic accessing that the embodiment of the present invention also provides for；

The structural representation of a kind of base station that Fig. 6 provides for the embodiment of the present invention；

The structural representation of a kind of subscriber equipment that Fig. 7 provides for the embodiment of the present invention.

Detailed description of the invention

For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing Embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, this Shen Embodiment in please and the feature in embodiment can mutual combination in any.

Can be at the computer of such as one group of computer executable instructions in the step shown in the flow chart of accompanying drawing System performs.And, although show logical order in flow charts, but in some cases, Can be to be different from the step shown or described by order execution herein.

Introduce the technical scheme that the embodiment of the present invention provides for convenience, first relevant prior art is carried out Brief description:

In existing Long Term Evolution (Long Term Evolution, LTE) system, physical accidental accesses letter Road (Physical Random Access Channel, PRACH) time slot can configure at most 16 kinds differences Layout or resource distribution, as shown in Figure 1.Loading according to PRACH, each PRACH slot cycle needs Want one or more PRACH resources.Base station must quickly process PRACH so that random access procedure Message 2 (Msg2) can send in the window required.It is more than to prevent each PRACH cycle from having One PRACH resource, generally in time domain rather than preferably multiplexing PRACH resource in frequency domain.Such as table 1 Shown in, distribute (Resource Allocation, RA) time slot configuration table for resource.

Table 1RA time slot configuration table

RA time slot configuration is numbered	RA time slot sends cycle/ms	RA time slot numbering in radio frames
			0	20	1
1	20	4
			2	20	7
3	10	1
			4	10	4
5	10	7
			6	5	1
7	5	2
			8	5	3
9	10	1,4,7
			10	10	2,5,7
11	10	3,6,9
			12	2	0
13	2	1
			14	1	0
15	20	9

Wherein, 1 radio frames there are 10 subframes, 1 subframe comprise 2 time slots, 1 radio frames Shi Changwei 10ms.

It follows that be discussed in detail at FDD (Frequency Division Duplexing, FDD) mould The various PRACH configuration of formula and time division duplex (Time Division Duplexing, TDD) pattern The time-frequency of lower random access guiding (Preamble) sends position.

First, the composition of Preamble from the point of view of us.As in figure 2 it is shown, Preamble is by length T_CP Cyclic Prefix (Cyclic Prefix, CP) and length T_SEQTargeting sequencing (Preamble sequence) Composition.

In order to ensure the performance of Stochastic accessing detection under different coverage condition, and also in little covering feelings Under condition, save RACH expense, as shown in table 2, LTE system give 5 kinds different with Machine access lead form (Preamble Format).Every kind of form length difference in time domain, But it is all to take 6 Physical Resource Block (Physical Resource Block, PRB) also on frequency domain I.e. 72 subcarriers.

The Preamble Format that table 2:5 kind is different

Preamble Format	T_CP	T_SEQ
			0	3168·T_s	24576·T_s
1	21024·T_s	24576·T_s
			2	6240·T_s	2·24576·T_s
3	21024·T_s	2·24576·T_s
			4	448·T_s	4096·T_s

Wherein, T_SIt is a unit of time defined in the 3 gpp standards, is 1/30.72 microsecond. Format 4 is exclusive for tdd mode, and the Preamble of Format 4 is only at special time slot UpPTS Interior transmission, is mainly used in the scene that coverage is smaller.

As it is shown on figure 3, Format 1 and Format 3 employs longer CP, it is adaptable to radius of society is relatively Big situation.It is bigger that the Preamble sequence repeated in Format 2 and Format 3 is applicable to path loss Cell environment.Format 0 occupies the length of a subframe, and Format 1 and Format 2 occupies two The length of continuous subframes, Format 3 occupies the length of 3 continuous subframes.From figure 3, it can be seen that every kind CP in Preamble Format and targeting sequencing do not take time (1 sub-frame length of whole subframe Degree is 1ms namely 1000 microseconds), remaining part is guard time (Guard Period, GP), This is necessary for asynchronous up PRACH.

The random access guiding that key-course (Media Access Control, MAC) triggers is got involved by media Sequence, can only send on specific running time-frequency resource.PRACH position on frequency domain is by upper strata half Static settings, by the ginseng in system information block 2 (System Information Block2, SIB2) Number PRACH frequency domain resource side-play amount (Prach-FreqOffset) broadcast, the value of Prach-FreqOffset Represent is the number of physical block resource, meets, and span is between 0 to 94, on PRACH not There is frequency hopping.

Parameter PRACH configuration index number (Prach-Configuration Index) (0 to 63 in SIB2 Between value) determine radio frames and the position of subframe that in community, PRACH can occur and used Preamble Format.

Table 3 gives the PRACH configuration index table under existing LTE system fdd mode, The subframe position that Preamble sends.As a example by PRACH Configuration Index 0, system broadcasts Message SIB2 broadcasts the value of PRACH Configuration Index, subscriber equipment (User Equipment, UE) obtain after search self storage table 3:Preamble Format be 0, PRACH Only accounting for a subframe, System Frame Number (System frame number) is even number (Even), then should Preamble sends in the radio frames that System Frame Number is even number, and subframe numbers (subframe number) is 1, then send out in this Preamble subframe that subframe numbers is 1 in the radio frames that System Frame Number is even number Send, and account for a subframe.

Table 3

Table 4 gives the Preamble of various PRACH configuration under existing LTE system tdd mode Pattern and send density (Density Per 10ms, D_RA) and version (Version, r_RA).Table 5 Give existing LTE system tdd mode lower 7 kinds of uplink/downlink sub-frame configuration patterns In (Uplink-Downlink configuration) and every kind of Uplink-Downlink configuration Respectively comprise which up (Uplink, U) subframe, descending (Downlink, D) subframe and special (Special, S) subframe.Table 6 gives PRACH configuration index table, table under existing LTE system tdd mode The corresponding time-frequency location indicating Preamble transmission in 6.

With PRACH configuration Index 0, in tdd mode as a example by 0, UE is obtained by SIB2 Obtaining PRACH configuration Index is 0, then Preamble Format is 0, and Preamble accounts for one Individual subframe, sends density D_RABe 0.5, then 20ms sends out a subframe, version r_RABeing 0, UE searches The table 6 of self storage, checks in concrete time-frequency location (0,1,0,2), and first digit 0 represents frequency From the beginning of frequency resource index 0, second digit 1 represents in even number radio frames, third digit 0 table Showing the front field of radio frames, fourth digit 2 represents its initial subframe and is positioned at 2 continuous print and goes downwards to The 3rd subframe between up transfer point.

Table 4

Table 5

Table 6

Note: if UE initiates special PRACH, UE obtains its parameter by proprietary signaling PRACH-MaskIndex is also checked in its sub-frame resources by table 7 below.

Table 7

Finally, it should be noted that Fig. 1, Fig. 2, Fig. 3 and table 1 to table 7 are all existing technology Scheme, specifically can refer to existing 3GPP standard agreement and understands.

Cluster type subscriber equipment in the embodiment of the present invention refers to current cluster network and by current cluster The subscriber equipment that network expectation accesses, the plain edition subscriber equipment in the embodiment of the present invention refers to not support to work as The subscriber equipment that front cluster network and/or current cluster network undesirably access, aforesaid subscriber equipment is concrete Can be various wireless communication terminal, the technical scheme that the embodiment of the present invention provides be not limited in being applied to IOPS network schemer, it is also possible to being applicable to various needs only provides service to a part of special user's equipment Communication scenes.

The embodiment of the present invention provides a kind of method of Stochastic accessing, based on base station side, as shown in Figure 4, is somebody's turn to do Method includes:

Step 101, when cluster network start after, base station in the community covered subscriber equipment broadcast and / or in the way of proprietary signaling the signalling of bouquet network information；Wherein, the user in the community of described covering sets For including plain edition subscriber equipment and cluster type subscriber equipment；Described cluster network information is used for notifying described Cluster type subscriber equipment is stopped using common PRACH configuration index table and begins to use default special PRACH configuration index table.

It should be noted that the described cluster network information that described base station sends may be used for clear and definite or hidden Notify that described cluster type subscriber equipment stops using General Physics RACH PRACH to configure likes Concordance list and begin to use default special PRACH configuration index table；If the mode clearly notified, institute Stating cluster network information can be that common thing stopped using by a clear and definite instruction described cluster type subscriber equipment Manage RACH PRACH configuration index table and begin to use default special PRACH configuration index table Message；If the mode of implicit expression notice, described cluster network information may is that described cluster network Identification information；After the identification information of described cluster network read by described cluster type subscriber equipment, determine Described cluster network has been turned on, it is determined that need stop using described common PRACH configuration index table and open Begin to use described default special PRACH configuration index table.Further, the identification of described cluster network Information can be public land mobile network mark (the Public Land Mobile that described cluster network is special Network ID, PLMN ID).

Further, described default special RACH configuration index table is exclusively used in described cluster network, described Common PRACH configuration index table for general network, described preset special RACH configuration index table with The time-frequency of the random access guiding of same index number instruction in described common PRACH configuration index table Resource differs.

Further, described base station subscriber equipment in the community covered is broadcasted and/or with proprietary signaling The mode signalling of bouquet network information, specifically may include that

Described base station subscriber equipment broadcast transmission system chunk (System in the community covered Information Block, SIB), wherein, described SIB includes described cluster network information；And/or,

Described cluster network information is inserted wireless heterogeneous networks (Radio Resource by described base station Control, RRC) message and be in the community covered connected state subscriber equipment send described RRC Message.

Further, described SIB can be SIB2.

Exemplary, described cluster network can be IOPS network, and described cluster type subscriber equipment can be Support the UE of IOPS network, IOPS UE, IOPS UE can be referred to as and select startup use to preset specially With PRACH configuration index table, described default special PRACH configuration index table makes with in general network Common PRACH configuration index table in same call number instruction sub-frame resources be different, both Configuration index table is stored in the storage medium of IOPS UE, is not have in described plain edition subscriber equipment Store described default special PRACH configuration index table.It should be noted that, described base station is that storage has Aforementioned two kinds of configuration index tables.

Step 102, described base station broadcast and/or in the way of proprietary signaling, send PRACH configuration parameter, Described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configure rope Quotation marks.

Further, described base station broadcast and/or send PRACH configuration parameter in the way of proprietary signaling, Specifically may include that

Further, further, described SIB can be SIB2.

It should be noted that now, the most enabled described default special PRACH configuration index in described base station Table.

Step 103, when described base station, to detect that on predetermined running time-frequency resource subscriber equipment sends random During access lead, described base station sends accidental access response message to described subscriber equipment.

Wherein, described predetermined running time-frequency resource is according to described PRACH configuration index number by described base station (namely Prach-Configuration Index), described PRACH frequency domain resource side-play amount (namely Prach-FreqOffset) and described preset special PRACH configuration index table and determine, described user sets For belonging to described cluster type subscriber equipment, described random access guiding is described pre-by described subscriber equipment Send on fixed running time-frequency resource.

It should be noted that after described cluster network starts, described base station enables described default special PRACH configuration index table, owing to described plain edition subscriber equipment does not store described default special PRACH configuration index table, sends out when the subscriber equipment in described plain edition subscriber equipment receives described base station According to self storage after the described Prach-Configuration Index sent, described Prach-FreqOffset Common PRACH configuration index table (when LTE system is fdd mode, can be table 3；Work as LTE When system is tdd mode, can be table 6) determine send random access guiding (Preamble) time Frequently resource, the running time-frequency resource that described plain edition subscriber equipment determines provides with the described special time-frequency of predetermined cluster Source is different.Described base station is to detect Preamble up at the described special running time-frequency resource of predetermined cluster, Therefore, described base station will not detect the targeting sequencing that described plain edition subscriber equipment sends；It addition, by Described in subscriber equipment in described cluster type subscriber equipment sends according to described base station Special PRACH is preset according to described after Prach-Configuration Index, described Prach-FreqOffset Preamble, therefore, institute is sent on the described predetermined special running time-frequency resource of cluster that configuration index table determines State base station to detect in described cluster type subscriber equipment on the described special running time-frequency resource of predetermined cluster The Preamble that subscriber equipment sends.

A kind of method of Stochastic accessing that the embodiment of the present invention provides, after cluster network starts, base station to Subscriber equipment in the community covered by broadcast and or dedicated signaling in the way of the signalling of bouquet network information； Wherein, the subscriber equipment in the community of described covering includes that plain edition subscriber equipment and cluster type user set Standby；Described cluster network information is used for notifying that described cluster type subscriber equipment stops using General Physics random Access channel PRACH configuration index table and begin to use default special PRACH configuration index table；Described Base station broadcast and/or send PRACH configuration parameter in the way of proprietary signaling, described PRACH configures Parameter includes: PRACH frequency domain resource side-play amount and PRACH configuration index number；When described base station When detecting the random access guiding that subscriber equipment sends on predetermined running time-frequency resource, described base station is to institute State subscriber equipment and send accidental access response message.The technical scheme provided by the present invention, it is possible at collection After group network starts, it is ensured that the access request of cluster type subscriber equipment is only responded by base station side.

The embodiment of the present invention provides the method for another kind of Stochastic accessing, based on UE side, as it is shown in figure 5, should Method includes:

Step 201, when subscriber equipment belongs to cluster type subscriber equipment, described subscriber equipment read base station Broadcast and/or the cluster network information that sends in the way of proprietary signaling are also stopped according to described cluster network information Only use common PRACH configuration index table and begin to use default special PRACH configuration index table.

It should be noted that the described cluster network information that described base station sends may be used for clear and definite or hidden Notify that described cluster type subscriber equipment stops using General Physics RACH PRACH to configure likes Concordance list and begin to use default special PRACH configuration index table；If the mode clearly notified, Described cluster network information can be that a clear and definite instruction described cluster type subscriber equipment is stopped using commonly Physical Random Access Channel PRACH configuration index table and begin to use default special PRACH configuration index The message of table；If the mode of implicit expression notice, described cluster network information may is that described cluster net The identification information of network；After the identification information of described cluster network read by described cluster type subscriber equipment, really Fixed described cluster network has been turned on, it is determined that need to stop using described common PRACH configuration index table And begin to use described default special PRACH configuration index table.Further, described cluster network Identification information can be described cluster network special public land mobile network mark (Public Land Mobile Network ID, PLMN ID).

Step 202, described subscriber equipment read described base station broadcast and/or send in the way of proprietary signaling PRACH configuration parameter, described PRACH configuration parameter includes: PRACH frequency domain resource offset Amount and PRACH configuration index number.

Step 203, described subscriber equipment are according to described PRACH configuration index number, described PRACH frequency Territory resource offset and described default special PRACH configuration index table determine transmission random access guiding Time need use running time-frequency resource.

Step 204, described subscriber equipment send random access guiding on described running time-frequency resource.

Step 205, described subscriber equipment receive the accidental access response message that described base station sends.

It should be noted that after described cluster network starts, described base station enables described default special PRACH configuration index table, described base station is according to described PRACH configuration index number, described PRACH Frequency domain resource side-play amount and the described of described base station self storage preset special PRACH configuration index table Determine the running time-frequency resource of detection Preamble, set owing to described subscriber equipment belongs to described cluster type user Standby, that the running time-frequency resource of the detection Preamble that described base station determines determines with described subscriber equipment transmission The running time-frequency resource of Preamble is consistent, and therefore, described base station can detect that described subscriber equipment is sent out The Preamble sent, thus described base station sends accidental access response message to described subscriber equipment (Msg2)。

The method of the another kind of Stochastic accessing that the embodiment of the present invention provides, it is wide that described subscriber equipment reads base station The cluster network information broadcast and/or send in the way of proprietary signaling also stops according to described cluster network information Use General Physics RACH PRACH configuration index table and begin to use default special PRACH Configuration index table；Described subscriber equipment reads described base station broadcast and/or in the way of proprietary signaling, described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configuration index Number；Described subscriber equipment is according to described PRACH configuration index number, the skew of described PRACH frequency domain resource Amount and described presetting when special PRACH configuration index table determines transmission random access guiding need to use Running time-frequency resource；Described subscriber equipment sends random access guiding on described running time-frequency resource；Described user Equipment receives the accidental access response message that described base station sends.The technical scheme provided by the present invention, Can be after cluster network starts, it is ensured that the access request of cluster type subscriber equipment is only rung by base station side Should.

In order to enable those skilled in the art to be more clearly understood that the technical side that the embodiment of the present invention provides Case, below by specific embodiment, the technical scheme providing the present invention is described in detail:

Embodiment one

In the present embodiment, cluster type subscriber equipment is referred to as IOPS UE, and cluster network is assumed to IOPS Network.The present embodiment comprises the following steps:

1, IOPS network startup, base station enter send after IOPS pattern broadcast and or proprietary signaling, After IOPS UE reads the proprietary signaling or broadcast message that base station sends, common before disabling PRACH configuration index table (uses) in general network, enables default special PRACH configuration Concordance list (uses) in IOPS network.

Wherein, IOPS UE has default special PRACH configuration index table, and in plain edition UE Do not store the described common PRACH preset before special PRACH configuration index table still uses to join Put concordance list.It addition, it is common with what plain edition UE used to preset special PRACH configuration index table In PRACH configuration index table, the running time-frequency resource of same call number instruction is different.

2, base station by broadcast and or proprietary signaling send Prach-Configuration Index, institute State the parameters such as Prach-FreqOffset.

3, plain edition UE reads the Prach-Configuration Index, described that base station sends Search at its common PRACH configuration index table stored after the parameters such as Prach-FreqOffset and send The running time-frequency resource of PRACH；IOPS UE receive base station send parameter after its store default special The running time-frequency resource sending PRACH searched by PRACH configuration index table.

4, base station enables default special PRACH configuration index table after IOPS network startup, determines inspection Surveying the running time-frequency resource of preamble, base station is only able to detect IOPS UE's on new running time-frequency resource Preamble, if successfully solved, carries out the accidental access response of Msg2.

Embodiment two

In the present embodiment, LTE system, as a example by fdd mode, is discussed in detail in the embodiment of the present invention institute The default special PRACH configuration index table stated:

In the fdd mode, the default special PRACH configuration index table described in the embodiment of the present invention can To be designed according to existing table 3, design principle is: described default special PRACH configuration index Table need to differ completely with the running time-frequency resource being used for sending Preamble of same call number instruction in table 3.

Understanding above-mentioned design principle for convenience, citing illustrates:

As a example by Prach-Configuration Index is 0, according to table 3, UE should be wireless at even number The subframe numbers of frame be 1 subframe start to send Preamble (this Preamble that Preamble Format is 0 Only take up the subframe that subframe numbers is 1), then in order to, after IOPS network startup, base station only detects The Preamble that Preamble Format is 0 that IOPS UE sends, under above-mentioned design principle retrains, Can be 0 correspondence by presetting Prach-Configuration Index in special PRACH configuration index table Subframe numbers is revised as other subframes of non-1, such as subframe 0, and 2,3 etc., also even number radio frames can be changed For odd number radio frames.

As a example by Prach-Configuration Index is 22, according to table 3, UE should be arbitrarily (Any) subframe numbers of radio frames be 1,6 subframe to start to send Preamble Format be 1 (format is 1 to represent 2 subframes of a length of continuous print of this preamble to Preamble, therefore should Preamble takies the subframe that subframe numbers is 1 and 2,6 and 7), then in order at IOPS network startup After, base station only detects the Preamble that Preamble Format is 1 that IOPS UE sends, above-mentioned Under design principle constraint, can will preset Prach-Configuration in special PRACH configuration index table Index is that the subframe numbers of 0 correspondence is revised as (3,8), the most schematically illustrates, it is also possible to repair Change (3,9), (4,8) or (4,9) into, meet above-mentioned design principle.

As a example by Prach-Configuration Index is 25, according to table 3, UE should be in any nothing The subframe numbers of line frame is Isosorbide-5-Nitrae, and the subframe of 7 starts to send the Preamble that Preamble Format is 1 and (is somebody's turn to do Preamble takies the subframe that subframe numbers is 1,2,4,5,6,7), then in order at IOPS network After startup, base station only detects the Preamble that Preamble Format is 1 that IOPS UE sends, Under the constraint of above-mentioned design principle, preset Prach-Configuration in special PRACH configuration index table Index is that the subframe numbers of 0 correspondence it may be only configured to N/A.

Note: if preamble format form is 1,2,3, i.e. represent that preamble takies is continuous Subframe lengths is respectively 2,2,3.Therefore should also be avoided in default special PRACH configuration index table and indicate Preamble format form when being not 0, the subframe numbers that preamble takies continuously also should be with table 3 Can not overlapping completely of instruction, otherwise can interfere.Such as: PRACH configuration index As a example by 28, its preamble format knowable to 3 that tables look-up is 1, a length of 2 continuous print of preamble Frame, even number radio frames, available subframe numbers is 0,2, the actual subframe numbers that takies of 4,6,8, i.e. preamble is 0 With 1,2 and 3,4 and 5,6 and 7,8 and 9, therefore this configuration has not had vacant subframe numbers for IOPS pattern Configuring, this index is 28 is arranged in default special PRACH configuration index table and should be N/A.By that analogy.

Schematically, in the case of meeting above-mentioned design principle, under fdd mode in the embodiment of the present invention Described default special PRACH configuration index table can be as shown in table 8 below, and table 8 is a kind of may Implementation, the present invention implement described in default special PRACH configuration index table be not limited to table The form of 8.

Table 8

Note: for table 8, in order to avoid the preamble of preamble and the PS UE of common UE occurs The sight that the time-frequency location launched overlaps (overlaps and occurs interference that base station side can be caused correctly to demodulate Preamble) call number is 25,26,27,28,29,41,42,43,44,45,54,55, The subframe numbers of 56,57,58,59 is set to N/A.

Embodiment three

In the present embodiment, LTE system, as a example by tdd mode, is discussed in detail in the embodiment of the present invention institute The default special PRACH configuration index table stated:

In tdd mode, the default special PRACH configuration index table described in the embodiment of the present invention can To be designed according to existing table 6, design principle is: described default special PRACH configuration index Table need to differ completely with the running time-frequency resource being used for sending Preamble of same call number instruction in table 6.

Note: if preamble format form is 1,2,3, i.e. represent that preamble takies is continuous Subframe lengths is respectively 2,2,3.Therefore should also be avoided in default special PRACH configuration index table and indicate Preamble format form when being not 0, the subframe numbers that preamble takies continuously also should be with table 6 Can not overlapping completely of instruction, otherwise can interfere.Such as: tdd mode is 0, PRACH As a example by configuration index 20, its preamble format knowable to 4 that tables look-up is 1, preamble length Degree is 2 continuous print subframes, tables look-up 6, running time-frequency resource configuration (0,1,0,1), i.e. frequency indices number Be 0, the 2nd subframe of continuous sub-frame of uplink of front field of even subframe, by tabling look-up 5, i.e. know Initial subframe number is 3, then this index be the subframe numbers that takies of preamble of 20 be 3 and 4, empty Remaining subframe numbers is 2, does not has vacant continuous 2 sub-frame of uplink, therefore index under configuration IOPS Be 20 preamble running time-frequency resource configuration subframe numbers cannot change, but it is wireless to change it The configuration of frame, as changed odd number radio frames into.

It addition, it is noted that for tdd mode, preset special PRACH in design and configure rope Need when drawing table to consider the lower 7 kinds of uplink/downlink sub-frame configuration of LTE system tdd mode as shown in table 5 Pattern.

Schematically, in the case of meeting above-mentioned design principle, under tdd mode in the embodiment of the present invention Described default special PRACH configuration index table can be as shown in table 9 below, and table 9 is a kind of may Implementation, the present invention implement described in default special PRACH configuration index table be not limited to table The form of 9.

In conjunction with table 6 and table 4, table 9 is briefly described, with Prach-Configuration Index Being 0 to illustrate, understanding Preamble Format according to table 4 is 0, according to table 6, up/under Row sub-frame configuration pattern is 0, i.e. represents preamble and only takes up a subframe lengths.Running time-frequency resource configures (0,1,0,2) represents that UE should be 0 in frequency indices number, the front field of even number radio frames, and it initiates Subframe the 3rd the subframe i.e. subframe numbers being positioned between 2 continuous print downstream-to-upstream transfer points are the son of 4 Frame starts to send Preamble (this Preamble only takes up the subframe that subframe numbers is 4), then in order to After IOPS network startup, it is 0 that base station only detects the Preamble Format of IOPS UE transmission Preamble, under above-mentioned design principle retrains, can be revised as other subframes of non-4 by subframe numbers, Such as subframe 2,3,7,8,9 etc., even number radio frames also can be changed into odd number radio frames.In table 9 When Prach-Configuration Index is 0, understanding Preamble Format according to table 4 is 0, according to Table 6 understands, and uplink/downlink sub-frame configuration pattern is 0, and (0,0,0,1) represents that UE should be at frequency rope Quotation marks are 0, the front field of odd number radio frames, and its initial subframe is also positioned at 2 continuous print downstream-to-upstreams and turns The subframe that second i.e. subframe numbers of subframe is 3 between changing a little starts to send Preamble, and (this Preamble is only Take the subframe that subframe numbers is 3).

Table 9

The embodiment of the present invention provides a kind of base station 10, and as shown in Figure 6, described base station 10 includes:

First transmitting element 11, after starting when cluster network, the user in the community covered sets For broadcasting and/or the signalling of bouquet network information in the way of proprietary signaling；Wherein, in the community of described covering Subscriber equipment include plain edition subscriber equipment and cluster type subscriber equipment；Described cluster network information is used for Notify that General Physics RACH PRACH configuration index stopped using by described cluster type subscriber equipment Table and begin to use default special PRACH configuration index table.

Second transmitting element 12, for broadcasting and/or send in the way of proprietary signaling PRACH configuration ginseng Number, described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH join Put call number.

Detector unit 13, for when detect that on predetermined running time-frequency resource what subscriber equipment sent connects at random When entering leading, send accidental access response message to described subscriber equipment；Wherein, described predetermined time-frequency Resource is according to described PRACH configuration index number, the skew of described PRACH frequency domain resource by described base station Amount and described default special PRACH configuration index table determine, described subscriber equipment belongs to described cluster Type subscriber equipment, described random access guiding be by described subscriber equipment on described predetermined running time-frequency resource Send.

Further, described first transmitting element 11 specifically for:

Further, described second transmitting element 12 specifically for:

Further, above-mentioned SIB can be SIB2.

The present embodiment is used for realizing above-mentioned each method embodiment, the workflow of unit in the present embodiment See the description in above-mentioned each method embodiment with operation principle, do not repeat them here.

A kind of base station that the embodiment of the present invention provides, after cluster network starts, base station is little to covered Subscriber equipment in district by broadcast and or dedicated signaling in the way of the signalling of bouquet network information；Wherein, described Subscriber equipment in the community covered includes plain edition subscriber equipment and cluster type subscriber equipment；Described cluster The network information is used for notifying that General Physics RACH stopped using by described cluster type subscriber equipment PRACH configuration index table and begin to use default special PRACH configuration index table；Described base station broadcast And/or in the way of proprietary signaling, send PRACH configuration parameter, described PRACH configuration parameter wraps Include: PRACH frequency domain resource side-play amount and PRACH configuration index number；When described base station is predetermined When detecting the random access guiding that subscriber equipment sends on running time-frequency resource, described base station sets to described user Preparation send accidental access response message.The technical scheme provided by the present invention, it is possible to open at cluster network After Dong, it is ensured that the access request of cluster type subscriber equipment is only responded by base station side.

The embodiment of the present invention provides a kind of subscriber equipment 20, as it is shown in fig. 7, described subscriber equipment 20 includes:

First reads unit 21, for when described subscriber equipment 20 belongs to cluster type subscriber equipment, reads Base station broadcast and/or the cluster network information sent in the way of proprietary signaling are also believed according to described cluster network Breath is stopped using General Physics RACH PRACH configuration index table and begins to use default special PRACH configuration index table.

Second reads unit 22, for reading described base station broadcast and/or sending in the way of proprietary signaling PRACH configuration parameter, described PRACH configuration parameter includes: PRACH frequency domain resource side-play amount And PRACH configuration index number.

Determine unit 23, for according to described PRACH configuration index number, described PRACH frequency domain money Source offset amount and described presetting when special PRACH configuration index table determines transmission random access guiding need Running time-frequency resource to be used.

Transmitting element 24, for sending random access guiding on described running time-frequency resource.

Receive unit 25, for receiving the accidental access response message that described base station sends.

The embodiment of the present invention provide a kind of subscriber equipment, described subscriber equipment read base station broadcast and/or with Cluster network information that the mode of proprietary signaling sends also is stopped using commonly according to described cluster network information Physical Random Access Channel PRACH configuration index table and begin to use default special PRACH configuration index Table；Described subscriber equipment reads described base station broadcast and/or in the way of proprietary signaling, described PRACH Configuration parameter includes: PRACH frequency domain resource side-play amount and PRACH configuration index number；Described use Family equipment is according to described PRACH configuration index number, described PRACH frequency domain resource side-play amount and described Preset the time-frequency money needing to use when special PRACH configuration index table determines and sends random access guiding Source；Described subscriber equipment sends random access guiding on described running time-frequency resource；Described subscriber equipment receives The accidental access response message that described base station sends.The technical scheme provided by the present invention, it is possible at collection After group network starts, it is ensured that the access request of cluster type subscriber equipment is only responded by base station side.

Device embodiment described above is only schematically, such as, the division of module, it is only A kind of logic function divides, and actual can have other dividing mode when realizing.Another point, shown or The module connection each other discussed can be by some interfaces, can be electrical, machinery or other Form.Described modules can be or may not be physically separate, can be or also Can not be physical location.Some or all of module therein can be selected according to the actual needs real The purpose of existing the present embodiment scheme.

It addition, each functional module in each embodiment of the present invention can be integrated in a processing module, Can also be that the independent physics of modules includes, it is also possible to two or more modules are integrated in a mould In block.Above-mentioned integrated module both can realize to use the form of hardware, it would however also be possible to employ hardware adds software The form of functional module realizes.

The above-mentioned integrated module realized with the form of SFU software functional unit, can be stored in a computer In read/write memory medium.Above-mentioned software function module is stored in a storage medium, including some fingers Make with so that a computer equipment (can be personal computer, server, or the network equipment etc.) Perform the part steps of method described in each embodiment of the present invention.And aforesaid storage medium includes: USB flash disk, Portable hard drive, read only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), the various media that can store program code such as magnetic disc or CD.

The above, the only detailed description of the invention of the present invention, but protection scope of the present invention is not limited to In this, any those familiar with the art, can be easily in the technical scope that the invention discloses Expect change or replace, all should contain within protection scope of the present invention.Therefore, the protection of the present invention Scope should be as the criterion with described scope of the claims.

Claims

1. the method for a Stochastic accessing, it is characterised in that including:

Method the most according to claim 1, it is characterised in that described cluster network information includes: The identification information of described cluster network；When the identification of described cluster network read by described cluster type subscriber equipment After information, determine that described cluster network has been turned on, stop using described common PRACH configuration index table and Begin to use described default special PRACH configuration index table.

Method the most according to claim 2, it is characterised in that the identification information of described cluster network For the public land mobile network mark PLMN ID that described cluster network is special.

Method the most according to claim 1, it is characterised in that the described special RACH of presetting configures Concordance list is exclusively used in described cluster network, and described common PRACH configuration index table is used for general network, institute State default special RACH configuration index table and same index number in described common PRACH configuration index table The running time-frequency resource of the random access guiding of instruction differs.

Method the most according to claim 1, it is characterised in that described base station is to the community covered In subscriber equipment broadcast and/or in the way of proprietary signaling the signalling of bouquet network information include:

Method the most according to claim 1, it is characterised in that described base station broadcast and/or with proprietary The mode of signaling sends PRACH configuration parameter and includes:

7. according to the method described in claim 5 or 6, it is characterised in that described SIB is SIB2.

8. the method for a Stochastic accessing, it is characterised in that including:

Method the most according to claim 8, it is characterised in that described cluster network information includes: The identification information of described cluster network；When the identification of described cluster network read by described cluster type subscriber equipment After information, determine that described cluster network has been turned on, stop using described common PRACH configuration index table and Begin to use described default special PRACH configuration index table.

Method the most according to claim 9, it is characterised in that the identification letter of described cluster network Breath identifies PLMN ID for the public land mobile network that described cluster network is special.

11. methods according to claim 8, it is characterised in that described default special RACH joins Putting concordance list and be exclusively used in described cluster network, described common PRACH configuration index table is used for common net Network, described default special RACH configuration index table is identical with described common PRACH configuration index table The running time-frequency resource of the random access guiding of call number instruction differs.

12. 1 kinds of base stations, it is characterised in that including:

13. base stations according to claim 12, it is characterised in that described cluster network information includes: The identification information of described cluster network；When the identification of described cluster network read by described cluster type subscriber equipment After information, determine that described cluster network has been turned on, stop using described common PRACH configuration index table and Begin to use described default special PRACH configuration index table.

14. base stations according to claim 13, it is characterised in that the identification letter of described cluster network Breath identifies PLMN ID for the public land mobile network that described cluster network is special.

15. base stations according to claim 12, it is characterised in that described default special RACH joins Putting concordance list and be exclusively used in described cluster network, described common PRACH configuration index table is used for general network, Described default special RACH configuration index table and same index in described common PRACH configuration index table The running time-frequency resource of random access guiding of number instruction differs.

16. base stations according to claim 12, it is characterised in that described first transmitting element is concrete For:

17. base stations according to claim 12, it is characterised in that described second transmitting element is concrete For:

18. according to the base station described in claim 16 or 17, it is characterised in that described SIB is SIB2.

19. 1 kinds of subscriber equipmenies, it is characterised in that including:

20. subscriber equipmenies according to claim 19, it is characterised in that described cluster network information Including: the identification information of described cluster network；When described cluster network read by described cluster type subscriber equipment Identification information after, determine that described cluster network has been turned on, stop using described common PRACH configure rope Draw table and begin to use described default special PRACH configuration index table.

21. subscriber equipmenies according to claim 20, it is characterised in that the knowledge of described cluster network Other information is the public land mobile network mark PLMN ID that described cluster network is special.

22. subscriber equipmenies according to claim 19, it is characterised in that described default special RACH configuration index table is exclusively used in described cluster network, and described common PRACH configuration index table is used for General network, described default special RACH configuration index table and described common PRACH configuration index table The running time-frequency resource of the random access guiding of middle same index number instruction differs.