CN107302798A

CN107302798A - Accidental access method, apparatus and system, base station and user equipment (UE)

Info

Publication number: CN107302798A
Application number: CN201610235395.2A
Authority: CN
Inventors: 刘星; 吴昱民
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2016-04-15
Filing date: 2016-04-15
Publication date: 2017-10-27
Also published as: WO2017177818A1

Abstract

The invention provides a kind of accidental access method, apparatus and system, base station and user equipment (UE).This method includes：It is determined that the assistant base station of the secondary cell SCell including user equipment (UE), wherein, assistant base station is the base station different from the main control base station of the main plot PCell including UE；First message is sent to the assistant base station of determination, wherein, first message performs processing for triggering assistant base station to UE Stochastic accessings SCell.By the present invention, solve can not be the problem of being not belonging to realize non-competing Stochastic accessing in the secondary cell of same base station in correlation technique with main plot.

Description

Accidental access method, apparatus and system, base station and user equipment (UE)

Technical field

The present invention relates to the communications field, in particular to a kind of accidental access method, apparatus and system, base station and use Family equipment UE.

Background technology

In 3GPP Rel 10, in order to meet the requirement of single user peak rate and power system capacity lifting, introducing will be more Individual member carrier (Component Carrier, CC) condenses together to increase the carrier aggregation (Carrier of transmission bandwidth Aggregation, CA) technology.ENB (evolved NodeB, evolved base station) can according to UE (User Equipment, User equipment) ability, business demand, network load situations such as, make UE over a number of carriers and meanwhile carry out up-downgoing The transmission of data.Wherein, UE can use continuous carrier, can also use discontinuous carrier；Can be by same frequency range Carrier aggregation together, can also be by the carrier aggregation of different frequency range together.In carrier aggregation, UE is claimed to build for the first time The serving cell configured during vertical RRC (Radio Resource Control, wireless heterogeneous networks) connections is PCell (Primary Cell, main plot), the carrier wave in the serving cell is referred to as PCC (Primary CC, main member carrier), and will be extra The carrier wave that multiple serving cells of configuration are referred to as in SCell (Secondary Cell, secondary cell), the serving cell is referred to as SCC (Secondary CC, secondary member carrier).

Carrier aggregation technology and scene have been carried out further extension by 3GPP Rel 12 so that the carrier wave being polymerize can be with It is belonging respectively to two different eNB.Now, it is desirable to which UE has the ability of dual link, this technology is also referred to as doubly-linked Connect (Dual Connectivity, DC) technology.The main application scenarios of doubly-linked connection technology are isomery multitiered networks, service Widespread deployment and the demand of non-ideal back haul link in small base station.Due to the limitation of non-ideal back haul link, in dual link Small base station need carry than the more functions of SCell and independence in carrier aggregation.However, in dual link, it is right The sensitive function of delay requirement and module have been placed on small base station, and then cause Rel 10 UE not make directly Use doubly-linked connection technology.

As described above, UE needs extra function and ability support dual link.For the UE without dual link ability, such as Fruit needs to also need to the carrier aggregation on two eNB together, then to use traditional carrier aggregation technology.UE is auxiliary Cell transmitting data with secondary cell, it is necessary to realize synchronization.Wherein, uplink synchronous can be by holding in secondary cell Non-competing Stochastic accessing is gone to realize.But, for how to be not belonging to main plot in the secondary cell of same base station in fact Existing non-competing random access procedure, not yet proposes effective solution at present.

The content of the invention

The invention provides a kind of accidental access method, apparatus and system, base station and user equipment (UE), at least to solve Can not be the problem of being not belonging to realize non-competing Stochastic accessing in the secondary cell of same base station with main plot in correlation technique.

According to an aspect of the invention, there is provided a kind of accidental access method, including：It is determined that including user equipment (UE) Secondary cell SCell assistant base station, wherein, assistant base station is main control base station with the main plot PCell including UE Different base stations；First message is sent to the assistant base station of determination, wherein, first message is used to trigger assistant base station pair UE Stochastic accessings SCell performs processing.

Further, it is UE Stochastic accessings SCell distribution random access resources that first message, which is used to trigger assistant base station,.

Further, the random access resource scope for allowing assistant base station to use is carried in first message, first message is used In triggering assistant base station random access resource is distributed in the range of random access resource for UE Stochastic accessings SCell.

Further, after first message is sent to the assistant base station of determination, in addition to：Receive what assistant base station was sent Second message, wherein, the second message carries at least one following information：For identify assistant base station for UE carry out with Machine accesses the resource identification of distributed random access resource；For indicating that assistant base station allows UE to perform Stochastic accessing Configured information；Stochastic accessing-Radio Network Temporary Identifier RA-RNTI for dispatching accidental access response.

Further, after the second message that assistant base station is sent is received, in addition to：Judged to aid according to the second message Whether the random access resource that base station is distributed by UE progress Stochastic accessings can use；Judging that assistant base station enters for UE In the case of random access resource that row Stochastic accessing is distributed is available, indicate that UE is right on the random access resource of distribution SCell performs Stochastic accessing；The random access resource that distributes of Stochastic accessing is carried out judging assistant base station by UE not In the case of available, the first Stochastic accessing refuse information is sent to assistant base station, wherein, the first Stochastic accessing refuse information For indicating that assistant base station is that UE Stochastic accessing assistant base stations redistribute random access resource.

Further, the random access resource scope for allowing assistant base station to use is carried in the first Stochastic accessing refuse information, First Stochastic accessing refuse information is used to indicate that assistant base station aids in base in the range of random access resource for UE Stochastic accessings Redistribute random access resource in station.

Further, resource identification is indexed including random access leader sequence, judges that assistant base station is according to the second message Whether the random access resource that UE progress Stochastic accessings are distributed, which can use, includes at least one of：Judge before Stochastic accessing Lead whether the corresponding random access resource of sequence index is used to indicate non-competing random access leader sequence resource in PCell； Judge whether random access leader sequence index and RA-RNTI are used while distributing to other UE.

Further, indicate that UE performs Stochastic accessing to SCell on the random access resource of distribution and included：To UE Physical downlink control channel PDCCH order is sent, wherein, PDCCH orders carry resource identification and assistant base station Mark, for indicating that UE performs Stochastic accessing on the random access resource of distribution to the SCell of assistant base station.

Further, sending physical downlink control channel PDCCH order to UE includes：Indicate assistant base station to UE Send PDCCH orders.

Further, after PDCCH orders are sent to UE, in addition to：Receive assistant base station send first with Machine access response, wherein, instruction main control base station is carried in the first accidental access response and sends the second Stochastic accessing to UE At least one first delivery time of response, and following parameter：It is uplink Timing Advance, back-off parameter, random Access lead sequence index, for UE distribute the corresponding uplink scheduling authorization of ascending resource and cell-radio network mark temporarily Know；At the time of whether judge the first delivery time be with available PDCCH resource；Judging that the first delivery time is In the case of at the time of with available PDCCH resource, the second accidental access response is sent to UE in the first delivery time.

Further, in addition to：The 3rd message is sent to assistant base station, wherein, the 3rd message is carried with available At the time of PDCCH resource, at the time of for assisting assistant base station from available PDCCH resource in selection first send out Send the moment.

Further, the second message also includes the second transmission for being used to indicate that main control base station sends PDCCH orders to UE At the moment, sending physical downlink control channel PDCCH order to UE includes：Judge the second delivery time whether be with At the time of available PDCCH resource；At the time of it is with available PDCCH resource to judge the second delivery time In the case of, send PDCCH orders to UE in the second delivery time.

Further, at the time of being carried in first message with available PDCCH resource, for assisting assistant base station The second delivery time is selected at the time of from available PDCCH resource.

Further, in the case of at the time of judging that the second delivery time is not with available PDCCH resource, Also include：The first Stochastic accessing refuse information is sent to assistant base station, wherein, the first Stochastic accessing refuse information is also carried At the time of having with available PDCCH resource, the first Stochastic accessing refuse information is additionally operable to indicate assistant base station selection tool As the second delivery time at the time of having an available PDCCH resource.

According to another aspect of the present invention there is provided a kind of accidental access method, including：Receive main control base station is sent the One message, wherein, first message is used to trigger performs processing to user equipment (UE) Stochastic accessing secondary cell SCell, main Control the base station that base station is the main plot PCell for including UE, main control base station be with the assistant base station of the SCell including UE not Same base station；Processing is performed to UE Stochastic accessings SCell according to first message.

Further, UE Stochastic accessing SCell execution processing is included according to first message：It is UE according to first message Stochastic accessing SCell distributes random access resource.

Further, after the first message that main control base station is sent is received, in addition to：Second is sent to main control base station to disappear Breath, wherein, the second message carries at least one following information：For being designated UE Stochastic accessings SCell distribution The resource identification of random access resource；For indicating to allow UE Stochastic accessings SCell configured information；For identifying UE Perform Stochastic accessing-Radio Network Temporary Identifier RA-RNTI of Stochastic accessing.

Further, after the second message is sent to main control base station, in addition to：What reception main control base station was sent is used to refer to Show available 3rd message of random access resource of distribution；Physical downlink control channel PDCCH order is sent to UE, Wherein, PDCCH orders carry resource identification, for indicating UE on the random access resource of distribution to SCell Perform Stochastic accessing.

Further, after physical downlink control channel PDCCH order is sent to UE, in addition to：To master control base Stand and send the first accidental access response, rung with indicating that main control base station sends the second Stochastic accessing in the first delivery time to UE Should, wherein, carried in the first accidental access response and indicate main control base station sends the second accidental access response to UE the At least one one delivery time, and following parameter：Uplink Timing Advance, back-off parameter, random access guiding Sequence index, the corresponding uplink scheduling authorization of ascending resource and Cell Radio Network Temporary Identifier/Identity, Cell-RNTI distributed for UE.

According to another aspect of the present invention there is provided a kind of accidental access method, including：Receive what main control base station was sent PDCCH orders, wherein, it is user equipment (UE) Stochastic accessing assistant base station point that PDCCH orders, which carry assistant base station, The resource identification for the random access resource matched somebody with somebody and the mark of assistant base station, PDCCH orders are for indicating UE in distribution Stochastic accessing is performed to the secondary cell SCell of assistant base station on random access resource, assistant base station is and the master including UE The different base station of cell PCell main control base station；According to PDCCH orders on the random access resource of distribution to SCell Perform Stochastic accessing.

According to another aspect of the present invention there is provided a kind of accidental access device, including：Determining module, for determining bag The secondary cell SCell of user equipment (UE) assistant base station is included, wherein, assistant base station is and the main plot PCell including UE The different base station of main control base station；Sending module, for sending first message to the assistant base station of determination, wherein, first Message performs processing for triggering assistant base station to UE Stochastic accessing secondary cells SCell.

According to another aspect of the present invention there is provided a kind of accidental access device, including：First receiving module, for connecing The first message that main control base station is sent is received, wherein, first message is used to trigger to user equipment (UE) Stochastic accessing secondary cell SCell performs processing, and main control base station is the base station for the main plot PCell for including UE, main control base station be with including UE's The different base station of SCell assistant base station；Processing module, for being performed according to first message to UE Stochastic accessings SCell Processing.

According to another aspect of the present invention there is provided a kind of accidental access device, including：Second receiving module, for connecing The PDCCH orders that main control base station is sent are received, wherein, PDCCH orders carry assistant base station for user equipment (UE) The resource identification and the mark of assistant base station of the random access resource of Stochastic accessing assistant base station distribution, PDCCH orders are used In indicating secondary cell SCell execution Stochastic accessings of the UE to assistant base station on the random access resource of distribution, base is aided in Stand as the base station different from the main control base station of the main plot PCell including UE；Stochastic accessing module, for according to PDCCH Order performs Stochastic accessing on the random access resource of distribution to SCell.

According to another aspect of the present invention there is provided a kind of base station, the main plot PCell comprising user equipment (UE) is used In it is determined that the assistant base station of the secondary cell SCell including user equipment (UE), and send first to the assistant base station of determination and disappear Breath, wherein, assistant base station is the base station different from the main control base station of the main plot PCell including UE, and first message is used Processing is performed to UE Stochastic accessings SCell in triggering assistant base station.

According to another aspect of the present invention there is provided a kind of base station, the first message for receiving main control base station transmission, and Processing is performed to the secondary cell SCell of user equipment (UE) Stochastic accessing assistant base station according to first message, wherein, first Message, which is used to trigger, performs processing to UE Stochastic accessings SCell, and main control base station is the base for the main plot PCell for including UE Stand, main control base station is the base station different from the assistant base station of the SCell including UE.

According to another aspect of the present invention there is provided a kind of user equipment (UE), for receiving main control base station transmission PDCCH orders, and according to PDCCH orders on the random access resource that assistant base station is distributed to the auxiliary of assistant base station Cell SCell performs Stochastic accessing, wherein, PDCCH orders carry assistant base station for UE Stochastic accessing assistant base stations The resource identification of the random access resource of distribution and the mark of assistant base station, PDCCH orders are used to indicate UE in distribution Random access resource on Stochastic accessing is performed to SCell, assistant base station is master with the main plot PCell including UE Control the different base station in base station.

According to another aspect of the present invention there is provided a kind of random access system, including：User equipment (UE)；Master control base Stand, the main plot PCell comprising UE, the assistant base station of the secondary cell SCell for determining to include UE, and to determination Assistant base station send first message, wherein, first message is used to trigger assistant base station and hold UE Stochastic accessings SCell Row processing；Assistant base station, is the base stations different from main control base station, for according to first message to UE Stochastic accessings SCell Perform processing.

According to another aspect of the present invention there is provided a kind of storage medium, the storage medium, which can be configured to storage, to be used for Perform the program code of following steps：It is determined that the assistant base station of the secondary cell SCell including user equipment (UE), wherein, Assistant base station is the base station different from the main control base station of the main plot PCell including UE；Sent to the assistant base station of determination First message, wherein, first message performs processing for triggering assistant base station to UE Stochastic accessings SCell.

According to another aspect of the present invention there is provided a kind of storage medium, the storage medium, which can be configured to storage, to be used for Perform the program code of following steps：The first message that main control base station is sent is received, wherein, first message is used for triggering pair User equipment (UE) Stochastic accessing secondary cell SCell performs processing, and main control base station is the base for the main plot PCell for including UE Stand, main control base station is the base station different from the assistant base station of the SCell including UE；It is random to UE according to first message Access SCell performs processing.

According to another aspect of the present invention there is provided a kind of storage medium, the storage medium, which can be configured to storage, to be used for Perform the program code of following steps：The PDCCH orders that main control base station is sent are received, wherein, PDCCH orders are taken With the resource identification and auxiliary that assistant base station is the random access resource that user equipment (UE) Stochastic accessing assistant base station is distributed The mark of base station, PDCCH orders are for indicating secondary cells of the UE to assistant base station on the random access resource of distribution SCell performs Stochastic accessing, and assistant base station is the base station different from the main control base station of the main plot PCell including UE；Root Stochastic accessing is performed to SCell on the random access resource of distribution according to PDCCH orders.

The embodiment of the present invention, the assistant base station of the secondary cell SCell by determining to include user equipment (UE), wherein, it is auxiliary It is the base station different from the main control base station of the main plot PCell including UE to help base station；The is sent to the assistant base station of determination One message, wherein, first message performs processing for triggering assistant base station to UE Stochastic accessings SCell, solves phase In the technology of pass can not the problem of being not belonging to realize non-competing Stochastic accessing in the secondary cell of same base station with main plot, and then By first message trigger assistant base station processing is performed to UE Stochastic accessings SCell so that UE can and main plot Non-competing random access procedure is performed in the secondary cell for being not belonging to same base station, so that UE has been effectively ensured in across base station field Carrier aggregation is supported in scape, so as to improve the transmission rate of user face data.

Brief description of the drawings

Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, the present invention Schematic description and description be used for explain the present invention, do not constitute inappropriate limitation of the present invention.In the accompanying drawings：

Fig. 1 is a kind of flow chart of accidental access method according to embodiments of the present invention；

Fig. 2 is the flow chart of another accidental access method according to embodiments of the present invention；

Fig. 3 is the flow chart of another accidental access method according to embodiments of the present invention；

Fig. 4 is a kind of schematic diagram of preferred accidental access method according to embodiments of the present invention；

Fig. 5 is the schematic diagram of another preferred accidental access method according to embodiments of the present invention；

Fig. 6 is a kind of structured flowchart of accidental access device according to embodiments of the present invention；

Fig. 7 is the structured flowchart of another accidental access device according to embodiments of the present invention；

Fig. 8 is the structured flowchart of another accidental access device according to embodiments of the present invention；

Fig. 9 is a kind of schematic diagram of random access system according to embodiments of the present invention.

Embodiment

Describe the present invention in detail below with reference to accompanying drawing and in conjunction with the embodiments.It should be noted that in the feelings not conflicted Under condition, the feature in embodiment and embodiment in the application can be mutually combined.

It should be noted that term " first ", " second " in description and claims of this specification and above-mentioned accompanying drawing Etc. being for distinguishing similar object, without for describing specific order or precedence.

A kind of accidental access method is provided in the present embodiment, and Fig. 1 is a kind of Stochastic accessing according to embodiments of the present invention The flow chart of method, as shown in figure 1, the flow comprises the following steps：

Step S102, it is determined that the assistant base station of the secondary cell SCell including user equipment (UE), wherein, assistant base station is The base station different from the main control base station of the main plot PCell including UE.

Step S104, first message is sent to the assistant base station of determination, wherein, first message is used to trigger assistant base station Processing is performed to UE Stochastic accessings SCell.

In this embodiment, UE sets up RRC (Radio Resource Control, wireless heterogeneous networks) connections for the first time When the serving cell that configures be that carrier wave in PCell (Primary Cell, main plot), this serving cell is referred to as PCC (Primary CC, main member carrier), and by the multiple serving cells additionally configured, referred to as SCell (Secondary Cell, Secondary cell), the carrier wave in this serving cell is referred to as SCC (Secondary CC, secondary member carrier).

In the present embodiment, step S102 and S104 executive agent are another base stations different from assistant base station, it is preferred that The base station is the eNB (PCell eNB, P-eNB, main control base station) of the PCell comprising UE, wherein, main control base station is also One or more UE SCell can be included.Assistant base station (SCell, eNB, S-eNB) is only comprising one or more UE SCell.

Alternatively, it is UE Stochastic accessing secondary cells SCell distribution Stochastic accessing moneys that first message, which is used to trigger assistant base station, Source.

Main control base station can send first message (a kind of Stochastic accessing trigger command) to assistant base station, it is preferable that pass through The order notifies assistant base station UE to the secondary cell initiating random access procedure on assistant base station and will ask assistant base station Random access resource is distributed for secondary cell.The random access resource includes random access leader sequence and indexes (Preamble Index) and/or Stochastic accessing running time-frequency resource index (PRACH Mask Index).

Main control base station can allow the scope of the random access resource used to assistant base station offer assistant base station, for assisting Assistant base station selects random access resource.Main control base station, which can also provide main plot, available PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) resource one or more moment, exist for assistant base station The moment sends accidental access response etc. to main control base station.

Alternatively, the random access resource scope for allowing assistant base station to use is carried in first message, first message is used for Trigger assistant base station and distribute random access resource in the range of random access resource for UE Stochastic accessing secondary cells SCell. The random access resource of assistant base station distribution, it may include random access leader sequence is indexed and/or Stochastic accessing running time-frequency resource Index.By informing the random access resource scope that assistant base station allows assistant base station to use, contribute to assistant base station quick Suitable random access resource is selected, the allocative efficiency of resource is improved.

Alternatively, after first message is sent to the assistant base station of determination, in addition to：Receive assistant base station is sent the Two message, wherein, the second message carries at least one following information：Carried out at random for UE for identifying assistant base station The resource identification of the distributed random access resource of access；For indicating the finger that assistant base station allows UE to perform Stochastic accessing Show information；Stochastic accessing-Radio Network Temporary Identifier RA-RNTI for dispatching accidental access response.

Main control base station is sent after first message to the assistant base station of determination, and assistant base station can confirm to agree to initiate to main control base station Stochastic accessing, and the random access resource of distribution is notified into main control base station, wherein, random access resource may include to connect at random Enter targeting sequencing index and/or Stochastic accessing running time-frequency resource index.Assistant base station will can be provided according to Stochastic accessing time-frequency simultaneously RA-RNTI (Random Access-Radio Network Temporary Identity, Stochastic accessing-wireless that source is determined Network Temporary Identifier) it is sent to main control base station.In addition, assistant base station may further indicate that for triggering UE Stochastic accessings The delivery time of PDCCH orders.Main control base station can judge the Stochastic accessing money of assistant base station distribution based on above-mentioned information Whether source can use.

Alternatively, after the second message that assistant base station is sent is received, in addition to：Auxiliary base is judged according to the second message Whether the random access resource distributed by UE progress Stochastic accessings of standing can use；Judging that assistant base station is UE progress In the case of random access resource that Stochastic accessing is distributed is available, indicate that UE is right on the random access resource of distribution SCell performs Stochastic accessing；The random access resource that distributes of Stochastic accessing is carried out judging assistant base station by UE not In the case of available, the first Stochastic accessing refuse information is sent to assistant base station, wherein, the first Stochastic accessing refuse information For indicating that assistant base station is that UE Stochastic accessing assistant base stations redistribute random access resource.

Wherein, judge assistant base station carried out by UE the random access resource that distributes of Stochastic accessing it is available in the case of, Indicate that UE performs Stochastic accessing to SCell on the random access resource of distribution and can included：Main control base station is directly indicated UE carries out carrying out Stochastic accessing to SCell, also, main control base station can also notify assistant base station to determine message, be used for Inform that the random access resource of assistant base station distribution can use, Stochastic accessing can be carried out；Or, main control base station can also be first Assistant base station is first notified, indicates that UE carries out Stochastic accessing to SCell by assistant base station.

Alternatively, resource identification is indexed including random access leader sequence, judges assistant base station for UE according to the second message Whether the random access resource that progress Stochastic accessing is distributed is available to include at least one of：Judge random access guiding sequence Whether the corresponding random access resource of column index is used to indicate non-competing random access leader sequence resource in PCell；Sentence Whether disconnected random access leader sequence index and RA-RNTI are distributed to other UE and are used simultaneously.

For example, main control base station judges that the random access leader sequence index that assistant base station is provided equally is indicated in main plot What non-competing random access leader sequence resource, random access leader sequence index and Stochastic accessing running time-frequency resource were determined RA-RNTI is not assigned to other UE simultaneously and used, then can confirm that assistant base station carries out Stochastic accessing institute for UE The random access resource of distribution is available.Or, the judgement that only whether can also be can use by the progress of one of above-mentioned condition.

Alternatively, if the random access resource that assistant base station is provided is unsatisfactory for above-mentioned condition, main control base station also can be to auxiliary Base station sends refuse information, and the message can carry the random access resource scope that assistant base station allows to use, for assisting Assistant base station reselects random access resource.For example, it is auxiliary that permission is carried in the first above-mentioned Stochastic accessing refuse information The random access resource scope that base station is used is helped, it is random for UE in the range of random access resource for indicating assistant base station Access assistant base station redistributes random access resource.In addition, the message, which can also carry main plot, available PDCCH One or more moment of resource.If the random access resource that assistant base station is provided meets above-mentioned condition, main control base station Confirmation message can be sent to assistant base station, main plot can be carried within the message one or many of available PDCCH resource The individual moment.

Alternatively, indicate that UE performs Stochastic accessing to SCell on the random access resource of distribution and included：Sent out to UE Physical downlink control channel PDCCH order is sent, wherein, PDCCH orders carry resource identification and assistant base station Mark, for indicating that UE performs Stochastic accessing on the random access resource of distribution to the SCell of assistant base station.

Main control base station sends PDCCH orders to UE, it is preferable that the order can carry DCI (Downlink Control Information, Downlink Control Information) format 1A, the letter to carry the random access resource received from assistant base station Breath (for example, random access leader sequence index and/or Stochastic accessing running time-frequency resource index), and secondary cell identity, To indicate that UE initiates non-competing Stochastic accessing to the secondary cell on assistant base station.UE can according to PDCCH orders, Initiated on specified Stochastic accessing running time-frequency resource with the random access leader sequence specified to the secondary cell on assistant base station Non-competing Stochastic accessing.

Alternatively, sending physical downlink control channel PDCCH order to UE includes：Indicate that assistant base station is sent out to UE Send PDCCH orders.

In the embodiment, base station does not carry out Stochastic accessing notice directly to UE, but notifies assistant base station, assistant base station Indicate that UE performs Stochastic accessing on the random access resource of distribution to SCell.

Alternatively, after PDCCH orders are sent to UE, in addition to：Receive assistant base station transmission first is random Access response, wherein, instruction main control base station is carried in the first accidental access response and sends the second Stochastic accessing sound to UE At least one the first delivery time answered, and following parameter：Uplink Timing Advance, back-off parameter, connect at random The corresponding uplink scheduling authorization of ascending resource and Cell Radio Network Temporary Identifier/Identity, Cell-RNTI for enter targeting sequencing index, distributing for UE； At the time of whether judge the first delivery time be with available PDCCH resource；Judge the first delivery time be with Can use PDCCH resource at the time of in the case of, the first delivery time to UE send the second accidental access response.

After physical downlink control channel PDCCH order is sent to UE, assistant base station receives the random of UE transmissions Access lead sequence, assistant base station by uplink Timing Advance (Uplink Time Advance), retract (Backoff) Parameter, random access leader sequence index, the corresponding uplink scheduling authorization of ascending resource (UL grant) distributed for UE And/or interim C-RNTI (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI, Cell Radio Network Temporary Identity) etc. Random access parameter, (the first Stochastic accessing rings composition accidental access response (Random Access Response, RAR) Should), and main control base station is sent to, and indicate at the time of accidental access response is sent (N2).Main control base station judges main plot Whether there is available PDCCH resource in moment N2.If the delivery time N2 that assistant base station is provided is unsatisfactory for above-mentioned Condition, main control base station sends refuse information to assistant base station, and the message, which can carry main plot, available PDCCH resource One or more moment.If the delivery time N2 that assistant base station is provided meets above-mentioned condition, main control base station will be multiple Accidental access response (including the accidental access response received from assistant base station) composition accidental access response MAC (Media Access Control, medium education) PDU (Protocol Data Unit, protocol Data Unit) is sent to UE. Wherein, the PDCCH orders for dispatching accidental access response MAC PDU are sent in moment N2.

Alternatively, this method also includes：The 3rd message is sent to assistant base station, wherein, the 3rd message is carried with can At the time of using PDCCH resource, at the time of for assisting assistant base station from available PDCCH resource in select first Delivery time.Wherein, the 3rd message can be sent in the case of it is determined that random access resource is available, the message Transmission opportunity can be send PDCCH orders before, afterwards either transmission PDCCH orders while.

The embodiment, at the time of assistant base station has known that main control base station has available PDCCH resource in advance, and then can be by Main control base station is indicated at the time of with available PDCCH resource, master control base sends Stochastic accessing to UE at the moment and rung Answer (the second accidental access response).

Alternatively, when the second message also includes being used to indicate that main control base station sends the second transmission of PDCCH orders to UE Carve, sending physical downlink control channel PDCCH order to UE includes：Whether judge the second delivery time is with can At the time of PDCCH resource；At the time of the second delivery time is judged for available PDCCH resource In the case of, send PDCCH orders to UE in the second delivery time.

For example, main control base station judge assistant base station provide random access leader sequence index equally indicated in main plot it is non- Random access leader sequence resource is competed, what random access leader sequence index and Stochastic accessing running time-frequency resource were determined RA-RNTI is not assigned to other UE simultaneously and used, and there is available PDCCH resource main plot in moment N1, Then main control base station sends PDCCH orders in moment N1 to UE.

Alternatively, at the time of being carried in first message with available PDCCH resource, for assist assistant base station from The second delivery time is selected at the time of with available PDCCH resource.

Alternatively, in the case of at the time of judging that the second delivery time is not with available PDCCH resource, also Including：The first Stochastic accessing refuse information is sent to assistant base station, wherein, the first Stochastic accessing refuse information is also carried At the time of with available PDCCH resource, the first Stochastic accessing refuse information is additionally operable to indicate that assistant base station selection has The second delivery time is used as at the time of available PDCCH resource.

According to another aspect of the present invention, a kind of accidental access method is additionally provided, as shown in Fig. 2 this method includes：

Step S202, receives the first message that main control base station is sent, wherein, first message is used to trigger to user equipment UE Stochastic accessing secondary cells SCell performs processing, and main control base station is the base station for the main plot PCell for including UE, master control Base station is the base station different from the assistant base station of the SCell including UE.

Step S204, processing is performed according to first message to UE Stochastic accessings SCell.

In the embodiment, step S202 and S204 executive agent can be another base stations different from main control base station, excellent Choosing for assistant base station.

The embodiment of the present invention, by receive main control base station send first message, wherein, first message be used for trigger to Family equipment UE Stochastic accessing secondary cell SCell performs processing, and main control base station is the base station for the main plot PCell for including UE, Main control base station is the base station different from the assistant base station of the SCell including UE, according to first message to UE Stochastic accessings SCell performs processing, solve in correlation technique can not be not belonging to realize in the secondary cell of same base station with main plot it is non- The problem of competing Stochastic accessing, and then processing is performed to UE Stochastic accessings SCell by first message triggering assistant base station, UE is allowd to be not belonging in the secondary cell of same base station perform non-competing random access procedure with main plot, so as to have Effect ensure that UE supports carrier aggregation in across base station scene, so as to improve the transmission rate of user face data.

Alternatively, UE Stochastic accessing SCell execution processing is included according to first message：It is UE according to first message Stochastic accessing SCell distributes random access resource.

Alternatively, after the first message that main control base station is sent is received, in addition to：The second message is sent to main control base station, Wherein, the second message carries at least one following information：For being designated the random of UE Stochastic accessings SCell distribution The resource identification of access-in resource；For indicating to allow UE Stochastic accessings SCell configured information；Held for identifying UE The Stochastic accessing of row Stochastic accessing-Radio Network Temporary Identifier RA-RNTI.

Alternatively, after the second message is sent to main control base station, in addition to：What reception main control base station was sent is used to indicate Available 3rd message of random access resource of distribution；Physical downlink control channel PDCCH order is sent to UE, its In, PDCCH orders carry resource identification, for indicating that UE is performed on the random access resource of distribution to SCell Stochastic accessing.

Alternatively, after physical downlink control channel PDCCH order is sent to UE, in addition to：To main control base station The first accidental access response is sent, to indicate that main control base station sends the second accidental access response in the first delivery time to UE, Wherein, the first hair for indicating that main control base station sends the second accidental access response to UE is carried in the first accidental access response Send at least one moment, and following parameter：Uplink Timing Advance, back-off parameter, random access leader sequence Index, the corresponding uplink scheduling authorization of ascending resource and Cell Radio Network Temporary Identifier/Identity, Cell-RNTI distributed for UE.

According to another aspect of the present invention there is provided a kind of accidental access method, as shown in figure 3, this method includes：

Step S302, receives the PDCCH orders that main control base station is sent, wherein, PDCCH orders carry auxiliary base Stand for user equipment (UE) Stochastic accessing assistant base station distribute random access resource resource identification and the mark of assistant base station, PDCCH orders are for indicating that UE is performed at random on the random access resource of distribution to the secondary cell SCell of assistant base station Access, assistant base station is the base station different from the main control base station of the main plot PCell including UE.

Step S304, Stochastic accessing is performed according to PDCCH orders on the random access resource of distribution to SCell.

In the embodiment, step S302 and step S304 executive agent are preferably UE.

The embodiment of the present invention, by receiving the PDCCH orders that main control base station is sent, wherein, PDCCH orders are carried There are resource identification and auxiliary base of the assistant base station for the random access resource of user equipment (UE) Stochastic accessing assistant base station distribution The mark stood, PDCCH orders are for indicating secondary cells of the UE to assistant base station on the random access resource of distribution SCell performs Stochastic accessing, and assistant base station is the base station different from the main control base station of the main plot PCell including UE, root Stochastic accessing is performed to SCell on the random access resource of distribution according to PDCCH orders, nothing in correlation technique is solved Method disappears the problem of being not belonging to realize non-competing Stochastic accessing in the secondary cell of same base station with main plot, and then by first Breath triggering assistant base station processing is performed to UE Stochastic accessings SCell so that UE can be not belonging to main plot it is same Non-competing random access procedure is performed in the secondary cell of base station, so that UE has been effectively ensured supports load in across base station scene Ripple polymerize, so as to improve the transmission rate of user face data.

The preferred embodiments of the present invention are provided below.

Embodiment one

Fig. 4 is a kind of schematic diagram of preferred accidental access method according to embodiments of the present invention.As shown in figure 4, the party Method includes：

Step S401, main control base station (p-eNB) sends Stochastic accessing trigger command to assistant base station (S-eNB), uses In notify assistant base station user equipment (UE) will to the secondary cell initiating random access procedure on assistant base station and ask auxiliary Base station is that secondary cell distributes random access resource, and the random access resource is indexed including random access leader sequence (Preamble Index) and/or Stochastic accessing running time-frequency resource index (PRACH Mask Index).

Meanwhile, main control base station can allow the scope of the random access resource used to assistant base station offer assistant base station, use Random access resource is selected in assisting assistant base station.Main control base station, which can also provide main plot, available PDCCH One or more moment of (Physical Downlink Control Channel, Physical Downlink Control Channel) resource.

Step S402, assistant base station determines that random access resource, including random access leader sequence are indexed and/or connect at random Enter time-frequency resource index.

Step S403, assistant base station confirms to agree to initiate Stochastic accessing to main control base station, above-mentioned random access resource is led to Know main control base station, random access resource includes random access leader sequence and indexed and/or Stochastic accessing running time-frequency resource index. The RA-RNTI that assistant base station simultaneously determines Stochastic accessing running time-frequency resource is sent to main control base station, and indicates to be used to trigger The delivery time N1 of the PDCCH orders of UE Stochastic accessings.

Step S404, main control base station judges whether the random access resource that assistant base station is provided can use, and comprises determining whether The random access leader sequence index that assistant base station is provided equally indicates non-competing random access leader sequence in main plot The RA-RNTI that resource, random access leader sequence index and Stochastic accessing running time-frequency resource are determined is not allocated to other UE is used, and main control base station judges whether main plot has available PDCCH resource in moment N1.

Step S405, if random access resource and delivery time N1 that assistant base station is provided are unsatisfactory for above-mentioned condition, Main control base station sends refuse information to assistant base station, and the message can carry the random access resource that assistant base station allows to use Scope, for assisting assistant base station to reselect random access resource, in addition, the message can also carry that main plot has can With one or more moment of PDCCH resource.

Step S406, if the random access resource that assistant base station is provided meets above-mentioned condition, main control base station is to auxiliary Base station sends confirmation message, and the message, which carries main plot, one or more moment of available PDCCH resource.

It should be noted that there are one or more moment of available PDCCH resource the main plot carried in the message, it is main Control base station can send the message to assistant base station, and assistant base station is according to the message from one with available PDCCH resource The a certain moment is selected in individual or multiple moment, main control base station is indicated to, so that main control base station sends Stochastic accessing at the moment Response.

Step S407, main control base station sends PDCCH orders in moment N1 to UE, and the order carries DCI format 1A, Relevant information for carrying the random access resource received from assistant base station, including random access leader sequence index and/ Or Stochastic accessing running time-frequency resource index, and secondary cell identity.The order is used to indicate UE to positioned at assistant base station On secondary cell initiate non-competing Stochastic accessing.

Step S408, UE use the Stochastic accessing specified according to PDCCH orders on specified Stochastic accessing running time-frequency resource Targeting sequencing initiates non-competing Stochastic accessing (sending Preamble codes) to the secondary cell on assistant base station.

Step S409, assistant base station is received after the random access leader sequence of UE transmissions, by uplink Timing Advance, Back-off parameter, random access leader sequence index, the corresponding uplink scheduling authorization of ascending resource (UL grant) distributed for UE And/or the parameter composition accidental access response such as interim C-RNTI, Preamble index, and send it to main control base station, And to main control base station indicate accidental access response send at the time of N2.

Step S410, main control base station judges whether main plot has available PDCCH resource in moment N2.

Step S411, if the delivery time N2 that assistant base station is provided is unsatisfactory for above-mentioned condition, main control base station is to auxiliary Base station sends refuse information, and the message, which can carry main plot, one or more moment of available PDCCH resource.

Step S412, if the delivery time N2 that assistant base station is provided meets above-mentioned condition, main control base station by it is multiple with Machine access response (including the accidental access response received from assistant base station) composition accidental access response MAC PDU, Moment, N2 was sent to UE.Wherein, for dispatching accidental access response MAC PDU PDCCH orders at the moment N2 is sent.

This embodiment describes the process of UE non-competing Stochastic accessings in the secondary cell of assistant base station, by the embodiment, UE can be not belonging in the secondary cell of same base station perform non-competing random access procedure with main plot, so as to ensure that UE supports carrier aggregation in across base station scene, improves user plane data transfer speed.

Embodiment two

Fig. 5 is the schematic diagram of another preferred accidental access method according to embodiments of the present invention.As shown in figure 5, should Method includes：

Step S501, main control base station (P-eNB) sends Stochastic accessing trigger command to assistant base station (S-eNB), uses In notify assistant base station user equipment (UE) will to the secondary cell initiating random access procedure on assistant base station and ask auxiliary Base station be secondary cell distribute random access resource, the random access resource include random access leader sequence index and/or with Machine access running time-frequency resource index.

Meanwhile, main control base station can allow the scope of the random access resource used to assistant base station offer assistant base station, use Random access resource is selected in assisting assistant base station.

Step S502, assistant base station determines random access resource, and the random access resource includes random access leader sequence Index and/or Stochastic accessing running time-frequency resource index.

Step S503, assistant base station confirms to agree to initiate Stochastic accessing to main control base station, above-mentioned random access resource is led to Know main control base station, including random access leader sequence index and/or Stochastic accessing running time-frequency resource index.Assistant base station is simultaneously The RA-RNTI that Stochastic accessing running time-frequency resource is determined is sent to main control base station.

Step S504, main control base station judges whether the random access resource that assistant base station is provided can use, and comprises determining whether The random access leader sequence index that assistant base station is provided equally indicates non-competing random access leader sequence in main plot Resource, and the RA-RNTI that random access leader sequence index and Stochastic accessing running time-frequency resource are determined is without simultaneously allocated Used to other UE.

Step S505, if the random access resource that assistant base station is provided is unsatisfactory for above-mentioned condition, main control base station is to auxiliary Base station is helped to send refuse information, the message can carry the random access resource scope that assistant base station allows to use, for assisting Assistant base station is helped to reselect random access resource.

Step S506, if the random access resource that assistant base station is provided meets above-mentioned condition, main control base station is to auxiliary Base station sends confirmation message, and the confirmation message, which carries main plot, one or more moment of available PDCCH resource.

Step S507, is received after confirmation message, and assistant base station sends PDCCH orders to UE, carries DCI format 1A, carries the information of above-mentioned random access resource, wherein, the information may include random access leader sequence index and/or Stochastic accessing running time-frequency resource is indexed.The order be used for indicate UE on assistant base station secondary cell initiate it is non-competing with Machine is accessed.

Step S508, UE use the Stochastic accessing specified according to PDCCH orders on specified Stochastic accessing running time-frequency resource Targeting sequencing initiates non-competing Stochastic accessing (sending Preamble codes) to the secondary cell on assistant base station.

Step S509, assistant base station receive UE transmission random access leader sequence after, by uplink Timing Advance, Back-off parameter, random access leader sequence index, the corresponding uplink scheduling authorization of ascending resource (UL grant) distributed for UE And/or the parameter such as C-RNTI composition accidental access response, and send it to main control base station temporarily, and refer to main control base station Show N2 at the time of accidental access response is sent.

Step S510, main control base station judges whether that there is available PDCCH resource main plot in moment N2.

Step S511, if the delivery time N2 that assistant base station is provided is unsatisfactory for above-mentioned condition, main control base station is to auxiliary Base station sends refuse information, and the message, which can carry main plot, one or more moment of available PDCCH resource.

Step S512, if the delivery time N2 that assistant base station is provided meets above-mentioned condition, main control base station by it is multiple with Machine access response (including the accidental access response received from assistant base station) composition accidental access response MAC PDU are sent To UE.Wherein, the PDCCH orders for dispatching accidental access response MAC PDU are sent in moment N2.

Through the above description of the embodiments, those skilled in the art can be understood that according to above-described embodiment Method the mode of required general hardware platform can be added to realize by software, naturally it is also possible to by hardware, but a lot In the case of the former be more preferably embodiment.Understood based on such, technical scheme is substantially in other words to existing The part for having technology to contribute can be embodied in the form of software product, and the computer software product is stored in one In storage medium (such as ROM/RAM, magnetic disc, CD), including some instructions are make it that a station terminal equipment (can To be mobile phone, computer, server, or network equipment etc.) perform method described in each embodiment of the invention.

A kind of accidental access device is additionally provided in the present embodiment, and the device is used to realize above-described embodiment and be preferable to carry out Mode, had carried out repeating no more for explanation.As used below, term " module " can realize predetermined function Software and/or hardware combination.Although the device described by following examples is preferably realized with software, firmly Part, or the realization of the combination of software and hardware is also that may and be contemplated.

Fig. 6 is a kind of structured flowchart of accidental access device according to embodiments of the present invention, as shown in fig. 6, the device bag Include：

Determining module 62, the assistant base station of the secondary cell SCell for determining to include user equipment (UE), wherein, auxiliary Base station is the base station different from the main control base station of the main plot PCell including UE.

Sending module 64, for sending first message to the assistant base station of determination, wherein, first message, which is used to trigger, to be aided in Base station performs processing to UE Stochastic accessing secondary cells SCell.

The embodiment of the present invention, determines to include the secondary cell SCell of user equipment (UE) assistant base station by determining module 62, Wherein, assistant base station is the base station different from the main control base station of the main plot PCell including UE, and sending module 64 is to true Fixed assistant base station sends first message, wherein, first message is used to trigger assistant base station to UE Stochastic accessing secondary cells SCell performs processing, solve in correlation technique can not be not belonging to realize in the secondary cell of same base station with main plot it is non- The problem of competing Stochastic accessing, and then processing is performed to UE Stochastic accessings SCell by first message triggering assistant base station, UE is allowd to be not belonging in the secondary cell of same base station perform non-competing random access procedure with main plot, so as to have Effect ensure that UE supports carrier aggregation in across base station scene, so as to improve the transmission rate of user face data.

Additionally provide a kind of accidental access device in the present embodiment, Fig. 7 is according to embodiments of the present invention another random The structured flowchart of access device, as shown in fig. 7, the device includes：

First receiving module 72, the first message for receiving main control base station transmission, wherein, first message is used for triggering pair User equipment (UE) Stochastic accessing secondary cell SCell performs processing, and main control base station is the base for the main plot PCell for including UE Stand, main control base station is the base station different from the assistant base station of the SCell including UE.

Processing module 74, for performing processing to UE Stochastic accessings SCell according to first message.

The embodiment of the present invention, the first message that main control base station is sent is received by the first receiving module 72, wherein, first Message is used to trigger performs processing to user equipment (UE) Stochastic accessing secondary cell SCell, and main control base station is to include UE's Main plot PCell base station, main control base station is the base station different from the assistant base station of the SCell including UE, handles mould Block 74 performs processing according to first message to UE Stochastic accessings SCell, solve in correlation technique can not and main plot The problem of non-competing Stochastic accessing being realized in the secondary cell for being not belonging to same base station, and then pass through first message triggering auxiliary base Stand and processing is performed to UE Stochastic accessings SCell so that UE can be not belonging to the secondary cell of same base station with main plot It is upper to perform non-competing random access procedure, so that UE has been effectively ensured supports carrier aggregation in across base station scene, so that Improve the transmission rate of user face data.

Additionally provide a kind of accidental access device in the present embodiment, Fig. 8 is according to embodiments of the present invention another random The structured flowchart of access device, as shown in figure 8, the device includes：

Second receiving module 82, the PDCCH orders for receiving main control base station transmission, wherein, PDCCH orders are taken With the resource identification and auxiliary that assistant base station is the random access resource that user equipment (UE) Stochastic accessing assistant base station is distributed The mark of base station, PDCCH orders are for indicating secondary cells of the UE to assistant base station on the random access resource of distribution SCell performs Stochastic accessing, and assistant base station is the base station different from the main control base station of the main plot PCell including UE.

Stochastic accessing module 84, for according to PDCCH orders on the random access resource of distribution to SCell perform with Machine is accessed.

The embodiment of the present invention, receives the PDCCH orders that main control base station is sent by the second receiving module 82, connects at random Enter module 84 and Stochastic accessing is performed to SCell on the random access resource of distribution according to PDCCH orders, solve phase In the technology of pass can not the problem of being not belonging to realize non-competing Stochastic accessing in the secondary cell of same base station with main plot, and then By first message trigger assistant base station processing is performed to UE Stochastic accessings SCell so that UE can and main plot Non-competing random access procedure is performed in the secondary cell for being not belonging to same base station, so that UE has been effectively ensured in across base station field Carrier aggregation is supported in scape, so as to improve the transmission rate of user face data.

The embodiment of the present invention additionally provides a kind of base station.The base station includes the main plot PCell of user equipment (UE), is used for It is determined that the assistant base station of the secondary cell SCell including user equipment (UE), and first message is sent to the assistant base station of determination, Wherein, assistant base station is the base station different from the main control base station of the main plot PCell including UE, and first message is used to touch Hair assistant base station performs processing to UE Stochastic accessings SCell.The base station is another base station different from assistant base station, excellent Selection of land, the base station can be main control base station.

The embodiment of the present invention additionally provides a kind of base station.The base station is used for the first message for receiving main control base station transmission, and root Processing is performed to the secondary cell SCell of user equipment (UE) Stochastic accessing assistant base station according to first message, wherein, first disappears Cease and processing performed to UE Stochastic accessings SCell for triggering, main control base station is the base station for the main plot PCell for including UE, Main control base station is the base station different from the assistant base station of the SCell including UE.The base station is different from the another of main control base station One base station, it is preferable that the base station can be assistant base station.

The embodiment of the present invention additionally provides a kind of user equipment (UE).The UE is used for the PDCCH for receiving main control base station transmission Order, and the secondary cell according to PDCCH orders on the random access resource that assistant base station is distributed to the assistant base station SCell performs Stochastic accessing, wherein, PDCCH orders carry assistant base station and distributed for UE Stochastic accessings assistant base station Random access resource resource identification and the mark of assistant base station, PDCCH orders for indicate UE distribution with Stochastic accessing is performed on machine access-in resource to SCell, assistant base station is the master control base with the main plot PCell including UE Stand different base stations.

The embodiment of the present invention additionally provides a kind of random access system.As shown in figure 9, the random access system includes：

User equipment (UE) 92；

Main control base station 94, the main plot PCell comprising UE, the auxiliary base of the secondary cell SCell for determining to include UE Stand, and first message is sent to the assistant base station of determination, wherein, first message is random to UE for triggering assistant base station Access SCell performs processing；

Assistant base station 96, is the base stations different from main control base station, for according to first message to UE Stochastic accessings SCell Perform processing.

The embodiment of the present invention, determines to include UE 92 secondary cell SCell assistant base station 96 by main control base station 94, And first message is sent to the assistant base station 96 of determination, assistant base station 96 is according to first message to UE Stochastic accessings SCell Perform processing, solve in correlation technique can not with main plot be not belonging to realize in the secondary cell of same base station it is non-competing with The problem of machine is accessed, and then processing is performed to UE Stochastic accessings SCell by first message triggering assistant base station so that UE can be not belonging in the secondary cell of same base station perform non-competing random access procedure with main plot, so as to effectively protect UE is demonstrate,proved and has supported carrier aggregation in across base station scene, so as to improve the transmission rate of user face data.

It should be noted that above-mentioned modules can be by software or hardware to realize, for the latter, Ke Yitong Cross in the following manner realization, but not limited to this：Above-mentioned module is respectively positioned in same processor；Or, above-mentioned module distinguishes position In multiple processors.

Embodiments of the invention additionally provide a kind of storage medium.Alternatively, in the present embodiment, above-mentioned storage medium can The program code for performing following steps to be arranged to storage to be used for：

S102, it is determined that the assistant base station of the secondary cell SCell including user equipment (UE), wherein, assistant base station is and bag Include the different base station of UE main plot PCell main control base station；

S104, first message is sent to the assistant base station of determination, wherein, first message is used to trigger assistant base station to UE Stochastic accessing SCell performs processing.

Alternatively, storage medium is also configured to the program code that storage is used to perform following steps：

S202, receive main control base station send first message, wherein, first message be used for trigger to user equipment (UE) with Machine access secondary cell SCell performs processing, and main control base station is the base station for the main plot PCell for including UE, main control base station For the base station different from the assistant base station of the SCell including UE；

S204, processing is performed according to first message to UE Stochastic accessings SCell.

S302, receives the PDCCH orders that main control base station is sent, wherein, PDCCH orders carry assistant base station and are The resource identification and the mark of assistant base station of the random access resource of user equipment (UE) Stochastic accessing assistant base station distribution, PDCCH orders are for indicating that UE is performed at random on the random access resource of distribution to the secondary cell SCell of assistant base station Access, assistant base station is the base station different from the main control base station of the main plot PCell including UE.

S304, Stochastic accessing is performed according to PDCCH orders on the random access resource of distribution to SCell.

Alternatively, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only storage (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, Magnetic disc or CD etc. are various can be with the medium of store program codes.

Alternatively, the specific example in the present embodiment may be referred to showing described in above-described embodiment and optional embodiment Example, the present embodiment will not be repeated here.

Obviously, those skilled in the art should be understood that above-mentioned each module of the invention or each step can be with general Computing device realizes that they can be concentrated on single computing device, or is distributed in multiple computing devices and is constituted Network on, alternatively, the program code that they can be can perform with computing device be realized, it is thus possible to by they Storage is performed by computing device in the storage device, and in some cases, can be to be held different from order herein They, are either fabricated to each integrated circuit modules or will be many in them by the shown or described step of row respectively Individual module or step are fabricated to single integrated circuit module to realize.So, the present invention is not restricted to any specific hardware Combined with software.

The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the technology of this area For personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.

Claims

1. a kind of accidental access method, it is characterised in that including：

It is determined that the assistant base station of the secondary cell SCell including user equipment (UE), wherein, the assistant base station is and bag Include the different base station of the main plot PCell of UE main control base station；

First message is sent to the assistant base station of determination, wherein, the first message is used to trigger the auxiliary Base station performs processing to SCell described in the UE Stochastic accessings.

2. according to the method described in claim 1, it is characterised in that the first message be used to trigger the assistant base station be SCell described in the UE Stochastic accessings distributes random access resource.

3. method according to claim 2, it is characterised in that the permission auxiliary base is carried in the first message The random access resource scope that station is used, the first message is used to trigger the assistant base station in the Stochastic accessing It is that SCell described in the UE Stochastic accessings distributes random access resource in scope of resource.

4. according to the method described in claim 1, it is characterised in that sending described first to the assistant base station of determination After message, in addition to：

The second message that the assistant base station is sent is received, wherein, second message carries following information at least One of：

The resource for the random access resource that Stochastic accessing is distributed is carried out by the UE for identifying the assistant base station Mark；For indicating the configured information that the assistant base station allows the UE to perform Stochastic accessing；For dispatch with Stochastic accessing-Radio Network Temporary Identifier RA-RNTI of machine access response.

5. method according to claim 4, it is characterised in that receive the second message that the assistant base station sends it Afterwards, in addition to：

Judge that the assistant base station is connect at random by what UE progress Stochastic accessings were distributed according to second message Enter whether resource can use；

Judging that the random access resource that the assistant base station is distributed by UE progress Stochastic accessings is available In the case of, indicate that the UE performs Stochastic accessing on the random access resource of the distribution to the SCell；

Judging that the random access resource that the assistant base station is distributed by UE progress Stochastic accessings is unavailable In the case of, the first Stochastic accessing refuse information is sent to the assistant base station, wherein, first Stochastic accessing Refuse information connects at random for indicating that the assistant base station is redistributed for assistant base station described in the UE Stochastic accessings Enter resource.

6. method according to claim 5, it is characterised in that carried in the first Stochastic accessing refuse information fair Perhaps the random access resource scope that described assistant base station is used, the first Stochastic accessing refuse information is used to indicate institute State assistant base station in the range of the random access resource be the UE Stochastic accessings described in assistant base station redistribute Random access resource.

7. method according to claim 5, it is characterised in that the resource identification includes random access leader sequence rope Draw, judge that the assistant base station is connect at random by what UE progress Stochastic accessings were distributed according to second message Enter whether resource is available to include at least one of：

Judge that the random access leader sequence indexes whether corresponding random access resource is used in the PCell Indicate non-competing random access leader sequence resource；

Judge the random access leader sequence index and the RA-RNTI whether by while distributing to other UE makes With.

8. method according to claim 5, it is characterised in that indicate that the UE is provided in the Stochastic accessing of the distribution Performing Stochastic accessing to the SCell on source includes：

Physical downlink control channel PDCCH order is sent to the UE, wherein, the PDCCH orders are carried There is the mark of the resource identification and the assistant base station, for indicating Stochastic accessings of the UE in the distribution Stochastic accessing is performed to the SCell of the assistant base station in resource.

9. method according to claim 8, it is characterised in that send physical downlink control channel PDCCH to the UE Order includes：

Indicate that the assistant base station sends the PDCCH orders to the UE.

10. the method according to claim 8 or 9, it is characterised in that ordered sending the PDCCH to the UE After order, in addition to：

The first accidental access response that the assistant base station is sent is received, wherein, in first accidental access response The first delivery time for indicating that the main control base station sends the second accidental access response to the UE is carried, and At least one following parameter：Uplink Timing Advance, back-off parameter, random access leader sequence index, are The corresponding uplink scheduling authorization of ascending resource and Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of the UE distribution；

At the time of whether judge first delivery time be with available PDCCH resource；

In the case of at the time of judging that first delivery time is with available PDCCH resource, described First delivery time sends second accidental access response to the UE.

11. method according to claim 10, it is characterised in that also include：

The 3rd message is sent to the assistant base station, wherein, the 3rd message is carried with available PDCCH At the time of resource, for assist the assistant base station from it is described have at the time of available PDCCH resource in select institute State the first delivery time.

12. method according to claim 8, it is characterised in that second message also includes being used to indicate the master control Base station sends the second delivery time of the PDCCH orders to the UE, and the PDCCH is sent to the UE Order includes：

At the time of whether judge second delivery time be with available PDCCH resource；

In the case of at the time of judging that second delivery time is with available PDCCH resource, in institute State the second delivery time and send the PDCCH orders to the UE.

13. method according to claim 12, it is characterised in that carried in the first message with available At the time of PDCCH resource, for assist the assistant base station from it is described have available PDCCH resource at the time of Middle selection second delivery time.

14. method according to claim 12, it is characterised in that judging that second delivery time is not described In the case of at the time of with available PDCCH resource, in addition to：

The first Stochastic accessing refuse information is sent to the assistant base station, wherein, first Stochastic accessing is refused At the time of exhausted message is also carried with available PDCCH resource, the first Stochastic accessing refuse information is also used Second delivery time is used as at the time of indicating that the assistant base station selection has available PDCCH resource.

15. a kind of accidental access method, it is characterised in that including：

The first message that main control base station is sent is received, wherein, the first message is used to trigger to user equipment (UE) Stochastic accessing secondary cell SCell performs processing, and the main control base station is the base for the main plot PCell for including the UE Stand, the main control base station is the base station different from the assistant base station of the SCell including the UE；

Processing is performed to SCell described in the UE Stochastic accessings according to the first message.

16. method according to claim 15, it is characterised in that according to the first message to the UE Stochastic accessings The SCell execution processing includes：

The SCell distribution random access resource according to the first message is the UE Stochastic accessings.

17. method according to claim 16, it is characterised in that after the first message that main control base station is sent is received, Also include：

The second message is sent to the main control base station, wherein, second message carries at least one following information：

Resource identification for being designated the random access resource that SCell described in the UE Stochastic accessings is distributed；For Indicate to allow the configured information of SCell described in the UE Stochastic accessings；Stochastic accessing is performed for identifying the UE Stochastic accessing-Radio Network Temporary Identifier RA-RNTI.

18. method according to claim 17, it is characterised in that sending second message to the main control base station Afterwards, in addition to：

Receive available 3rd message of random access resource for being used to indicate the distribution that the main control base station is sent；

Physical downlink control channel PDCCH order is sent to the UE, wherein, the PDCCH orders are carried There is the resource identification, for indicating that the UE is performed on the random access resource of the distribution to the SCell Stochastic accessing.

19. method according to claim 18, it is characterised in that sending Physical Downlink Control Channel to the UE After PDCCH orders, in addition to：

The first accidental access response is sent to the main control base station, to indicate the main control base station in the first delivery time The second accidental access response is sent to the UE, wherein, instruction institute is carried in first accidental access response First delivery time that main control base station sends second accidental access response to the UE is stated, and below At least one parameter：Uplink Timing Advance, back-off parameter, random access leader sequence index, are described The corresponding uplink scheduling authorization of ascending resource and Cell Radio Network Temporary Identifier/Identity, Cell-RNTI of UE distribution.

20. a kind of accidental access method, it is characterised in that including：

The PDCCH orders that main control base station is sent are received, wherein, the PDCCH orders carry assistant base station and are The resource identification and the auxiliary base for the random access resource that assistant base station described in user equipment (UE) Stochastic accessing is distributed The mark stood, the PDCCH orders are for indicating the UE on the random access resource of the distribution to described The secondary cell SCell of assistant base station performs Stochastic accessing, and the assistant base station is with including the main plot of the UE The different base station of PCell main control base station；

Stochastic accessing is performed to the SCell on the random access resource of the distribution according to the PDCCH orders.

21. a kind of accidental access device, it is characterised in that including：

Determining module, the assistant base station of the secondary cell SCell for determining to include user equipment (UE), wherein, it is described Assistant base station is the base station different from the main control base station of the main plot PCell including the UE；

Sending module, for sending first message to the assistant base station of determination, wherein, the first message is used Processing is performed to SCell described in the UE Stochastic accessings in triggering the assistant base station.

22. a kind of accidental access device, it is characterised in that including：

First receiving module, the first message for receiving main control base station transmission, wherein, the first message is used for Triggering performs processing to user equipment (UE) Stochastic accessing secondary cell SCell, and the main control base station is to include the UE Main plot PCell base station, the main control base station is different from the assistant base station of the SCell including the UE Base station；

Processing module, for performing processing to SCell described in the UE Stochastic accessings according to the first message.

23. a kind of accidental access device, it is characterised in that including：

Second receiving module, the PDCCH orders for receiving main control base station transmission, wherein, the PDCCH lives Order carries the money for the random access resource that assistant base station distributes for assistant base station described in user equipment (UE) Stochastic accessing Source identify and the assistant base station mark, the PDCCH orders for indicate the UE the distribution with Stochastic accessing is performed to the secondary cell SCell of the assistant base station on machine access-in resource, the assistant base station is and bag Include the different base station of the main plot PCell of UE main control base station；

Stochastic accessing module, for according to the PDCCH orders on the random access resource of the distribution to institute State SCell and perform Stochastic accessing.

24. a kind of base station, the main plot PCell comprising user equipment (UE), it is characterised in that for determining to include user equipment UE secondary cell SCell assistant base station, and first message is sent to the assistant base station of determination, wherein, institute Assistant base station is stated for the base station different from the main control base station of the main plot PCell including the UE, the first message Processing is performed to SCell described in the UE Stochastic accessings for triggering the assistant base station.

25. a kind of base station, it is characterised in that the first message for receiving main control base station transmission, and according to the first message Processing is performed to the secondary cell SCell of user equipment (UE) Stochastic accessing assistant base station, wherein, the first message is used Processing is performed to SCell described in the UE Stochastic accessings in triggering, the main control base station is to include the master of the UE Cell PCell base station, the main control base station is the base station different from the assistant base station of the SCell including the UE.

26. a kind of user equipment (UE), it is characterised in that the PDCCH orders for receiving main control base station transmission, and according to institute PDCCH orders are stated to hold the secondary cell SCell of the assistant base station on the random access resource that assistant base station is distributed Row Stochastic accessing, wherein, the PDCCH orders carry assistant base station to aid in described in the UE Stochastic accessings The resource identification and the mark of the assistant base station of the random access resource of base station distribution, the PDCCH orders are used Stochastic accessing, the auxiliary are performed to the SCell on the random access resource of the distribution in the instruction UE Base station is the base station different from the main control base station of the main plot PCell including the UE.

27. a kind of random access system, it is characterised in that including：

User equipment (UE)；

Main control base station, the main plot PCell comprising the UE, for determining to include the secondary cell SCell of the UE Assistant base station, and to determination the assistant base station send first message, wherein, the first message be used for touch Send out assistant base station described performs processing to SCell described in the UE Stochastic accessings；

The assistant base station, is the base stations different from the main control base station, for according to the first message to described SCell described in UE Stochastic accessings performs processing.