CN102246573B - Random access method, enodeb and terminal equipment - Google Patents
Random access method, enodeb and terminal equipment Download PDFInfo
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- CN102246573B CN102246573B CN200980148443.2A CN200980148443A CN102246573B CN 102246573 B CN102246573 B CN 102246573B CN 200980148443 A CN200980148443 A CN 200980148443A CN 102246573 B CN102246573 B CN 102246573B
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- 238000000034 method Methods 0.000 title claims abstract description 60
- 239000000969 carrier Substances 0.000 claims abstract description 114
- 230000004044 response Effects 0.000 claims abstract description 59
- 238000012544 monitoring process Methods 0.000 claims description 80
- 230000005540 biological transmission Effects 0.000 claims description 11
- 230000004913 activation Effects 0.000 claims description 7
- 230000008569 process Effects 0.000 abstract description 2
- 230000036963 noncompetitive effect Effects 0.000 abstract 1
- 230000001360 synchronised effect Effects 0.000 description 7
- 238000005516 engineering process Methods 0.000 description 6
- 230000007774 longterm Effects 0.000 description 4
- 230000000284 resting effect Effects 0.000 description 4
- 230000003068 static effect Effects 0.000 description 4
- 238000004891 communication Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
- H04W74/0838—Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
A random access method, an eNodeB and a terminal equipment are disclosed. The method includes the following steps: determining one or more composition carriers needed to be sensed by the user equipment(UE) in the discontinuous reception(DRX) state, informing the UE of the one or more composition carriers, and transmitting the random access response message on one of the determined one or more composition carriers after receiving the dedicated random access preamble sent by the UE. Therefore the eNodeB could determine the downlink carrier sensed by the UE when the UE is in the noncompetitive random access process of the DRX state, the utilization ratio of the downlink resource is increased, and the power consumption of the UE is reduced.
Description
Technical field
The present invention relates to the communication technology, particularly a kind of accidental access method, evolution base station and terminal equipment.
Background technology
Development along with wireless communication technology, in order to meet (IMT-Advanced, International Mobile Telecommunication Advanced) requirement, support is up to the peak data rate of 1G, and long evolving system is the method using carrier convergence technology as its expanding system bandwidth at present.Carrier convergence is mainly that a plurality of component carriers are pooled to one higher than the carrier wave of 20M, to support high speed data transfer.
At present, Long Term Evolution (LTE, Long Term Evolution) or senior Long Term Evolution (LTE-A, Long Term Evolution-advanced) system need to be supported asymmetrical carrier convergence, generally, the number of descending component carrier will be more than up component carrier number.Such as, downlink bandwidth is 80MHz, the component carrier of 4 20MHz, consists of; Upstream bandwidth is 20MHz, the component carrier of 1 20MHz, consists of.
In current long evolving system, non-competing random access procedure comprises:
As subscriber equipment (UE, User Equipment) in discontinuous reception (DRX, Discontinuous Reception) under state, when downlink data reaches, UE may be in uplink loss state, now, evolution base station (eNB, eNodeB) need to pass through Physical Downlink Control Channel (PDCCH, PhysicalDownlink Control Channel) notice UE to eNB initiating random access procedure, thereby obtain uplink synchronous.Meanwhile, eNB can be that UE distributes special-purpose random access lead code (preamble) by PDCCH, so that UE utilizes special-purpose random access Preamble to initiate non-competing random access procedure to eNB.
But, in long evolving system, introduce after carrier convergence technology, for the non-competing random access procedure under DRX state, at UE, utilize special-purpose random access Preamble to initiate after random access request to eNB, eNB can not determine UE receives data on which component carrier, or monitoring which component carrier, be that eNB does not know the definite component carrier that should send accidental access response message, in order to make UE can receive data, eNB need to send accidental access response message on all component carriers, thereby causes the waste of downlink resource; UE need to monitor all component carriers simultaneously, has increased the power consumption of UE.
Summary of the invention
The embodiment of the present invention provides a kind of accidental access method, evolution base station and terminal equipment, makes UE under DRX state in non-competing random access procedure, and eNB can determine the descending carrier that UE monitors, and has improved the utilance of downlink resource, reduces the power consumption of UE.
For solving the problems of the technologies described above, the present invention is that embodiment provides a kind of accidental access method, comprising:
Determine one or more component carriers that under discontinuous receiving state, subscriber equipment need to be monitored;
Described one or more component carriers are notified to subscriber equipment;
Send after special-purpose random access lead code receiving subscriber equipment, on a described definite component carrier or a component carrier in a plurality of component carrier, send accidental access response message.
The present invention is that embodiment also provides a kind of accidental access method, comprising:
The notice of one or more component carriers that the subscriber equipment that reception evolution base station sends need to be monitored;
Monitor the one or more component carriers that need monitoring in described notice;
To evolution base station, sending after special-purpose random access lead code, on a component carrier of described monitoring or a component carrier in a plurality of component carrier, receiving the accidental access response message that evolution base station sends.
Correspondingly, the embodiment of the present invention provides a kind of evolution base station, comprising:
Determining unit, for one or more component carriers of determining that under discontinuous receiving state, subscriber equipment need to be monitored;
Notification unit, notifies to subscriber equipment for one or more component carriers that determining unit is determined;
Message sink unit, sends special-purpose random access lead code for receiving subscriber equipment;
Message response unit, for receiving after special-purpose random access lead code in message sink unit, a component carrier on sends accidental access response message in one or more component carriers of determining in described determining unit.
The embodiment of the present invention also provides a kind of terminal equipment, comprising:
Receiving element, for receiving the notice of one or more component carriers that subscriber equipment that evolution base station sends need to monitor;
Monitoring unit, receives for monitoring described receiving element one or more component carriers that notice needs monitoring;
Message sending unit, for sending special-purpose random access lead code to evolution base station;
Message sink unit for after sending the random access lead code of described special use, receives the accidental access response message that evolution base station sends on a component carrier in a component carrier of described monitoring or a plurality of component carrier.
From such scheme, the embodiment of the present invention is informed UE by one or more component carriers that UE need to be monitored, so that UE is after sending random access request, monitor the PDCCH on these one or more component carriers, so that receive accidental access response message from the component carrier of monitoring, thereby reduced the power consumption of UE, simultaneously, eNB is after receiving special-purpose random access Preamble, also know and need on which component carrier, send accidental access response message, from having improved the utilance of downlink resource.
Accompanying drawing explanation
The flow chart of the method that Fig. 1 is a kind of random access of providing in the embodiment of the present invention;
Fig. 2 is the flow chart of the method for the random access of the another kind that provides in the embodiment of the present invention;
Fig. 3 is for providing a kind of flow chart of accidental access method in the embodiment of the present invention 1;
The flow chart of the method that Fig. 4 is a kind of random access of providing in the embodiment of the present invention 2;
The flow chart of the method that Fig. 5 is a kind of random access of providing in the embodiment of the present invention 3;
Fig. 6 is for providing the structural representation of evolution base station in the embodiment of the present invention;
Fig. 7 is the structural representation of terminal equipment in the embodiment of the present invention;
The structural representation that Fig. 8 is a kind of random access system of providing in the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing, optimum implementation of the present invention is described in detail.
Referring to Fig. 1, is the flow chart of the method for a kind of random access of providing in the embodiment of the present invention, and described method comprises:
Step 101: determine one or more component carriers that under DRX state, user equipment (UE) need to be monitored;
Step 102: the described one or more component carriers monitored that need are notified to UE;
Step 103: send after special-purpose random access lead code (Preamble) receiving UE, send accidental access response message on a component carrier in a described definite component carrier or a plurality of component carrier.
Accordingly, the embodiment of the present invention also provides a kind of method of random access, and its flow chart refers to Fig. 2, and described method comprises:
Step 201: the notice of one or more component carriers that the UE that reception evolution base station eNB sends need to monitor;
Step 202: monitor the one or more component carriers that need monitoring in described notice;
Step 203: sending to eNB after special-purpose random access Preamble, receive the accidental access response message of eNB transmission on a component carrier in a component carrier of described monitoring or a plurality of component carrier.
In embodiments of the present invention, evolution base station eNB can be when sending discontinuous reception (DRX, Discontinuous Reception) order to UE, and notice UE at least needs one or more component carriers of monitoring when entering DRX state; Described DRX order is used for forcing to make UE enter resting state,, when UE receives after this order, enters into resting state.Described DRX order is medium access control layer protocol Data Unit, or physical layer message, or radio resource control layer message; Also can notify UE when entering discontinuous reception DRX state by special-purpose message, at least need one or more component carriers of monitoring, the message of described special use be: DRX monitoring carrier wave command messages.This DRX monitoring carrier wave command messages is for notifying UE to need the component carrier of monitoring under DRX state.The embodiment of the present invention is not restricted.
For the embodiment of the present invention, mainly with three kinds of preferred embodiments, illustrate below, but be not limited to this.
The first preferred embodiment:
In this embodiment, determine after the component carrier that under DRX state, user equipment (UE) at least needs to monitor, UE is when entering discontinuous reception DRX state for evolution base station eNB notice, and determined UE at least needs one or more component carriers of monitoring; At UE, receive after described notice, monitor the physical downlink control channel PDCCH on described one or more component carrier, and after getting special-purpose random access lead code, to eNB, send special-purpose random access Preamble; ENB is after receiving the special-purpose random access Preamble of UE transmission, on at least one component carrier in one or more component carriers of described notice, send accidental access response message, simultaneously, UE is sending after special-purpose random access Preamble to eNB, receiving random access response message on described one or more component carriers.Its concrete implementation procedure refers to embodiment mono-.
Embodiment mono-
Refer to Fig. 3, for a kind of flow chart of accidental access method is provided in the embodiment of the present invention 1, in the present embodiment, eNB is the service eNB for UE, and following embodiment is same, and described method comprises:
Step 300:eNB determines that under DRX state, user equipment (UE) at least needs the component carrier of monitoring; Particularly, the component carrier that eNB can support according to UE and/or current ongoing business demand determine that UE at least needs the component carrier of monitoring.
Step 301:eNB sends DRX order to UE, and notice UE enters DRX state, and in this DRX order, eNB need at least need the component carrier (described component carrier can be, can be also a plurality of) of monitoring when UE notifies it to enter DRX state; Described DRX order is used for forcing to make UE enter resting state,, when UE receives after this order, enters into resting state.
That is to say, in this embodiment, eNB can comprise in the DRX order sending: one or more component carriers that UE need to monitor during at DRX state.This DRX order can be medium access control layer message, physical layer message or radio resource control layer message.Adopt medium access to control (MAC, Medium Access Control) protocol Data Unit (PDU, Protocol Data Unit) mode, also can adopt higher layer message, as radio resource control layer (RRC, Radio Resource Control) mode of message, can be also lower layer messages, such as physical layer message etc.
Certainly, in the embodiment of the present invention, eNB can send a specific messages to UE, one or more component carriers that notice UE need to monitor while entering DRX state, and the embodiment of the present invention is not restricted.
Step 302:UE receives after this DRX order of eNB transmission, and monitoring indication in this order needs one or more component carriers of monitoring;
That is to say, after receiving this DRX order, in activationary time (Active time), or wakeup time arrives time or the PDCCH channel on the component carrier of indication in monitoring this DRX order in " on duration " stage.
Step 303: when eNB receives the downlink data of UE, judge that UE, whether in uplink synchronous state, if so, sends to UE (not shown) by the downlink data of this UE; If not, UE, in uplink loss state, performs step 304;
Step 304:eNB is that UE distributes Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) and special-purpose random access lead code (preamble), to indicate UE to carry out random access procedure, obtain uplink synchronous; Wherein, be utilized as the PDCCH that this UE distributes, eNB is that UE distributes a special-purpose random access lead code (preamble).
Step 305:UE sends after special-purpose random access lead code receiving described eNB, to eNB, sends special-purpose random access Preamble;
UE, after sending special-purpose random access Preamble, is on its definite component carrier at eNB, receiving random access response message on one or more component carrier of indicating in namely DRX order or special-purpose Indication message.
Step 306:eNB, after receiving the random access Preamble of described special use, sends accidental access response message at least one component carrier in one or more component carriers of described notice.
That is to say, if in step 301, if eNB has only determined that for UE needs a component carrier of monitoring under DRX state, eNB, after receiving the special-purpose random access Preamble of UE transmission, sends accidental access response message on component carrier determining at this so;
If being UE, eNB determined a plurality of component carriers that need monitoring under DRX state, eNB is after receiving the special-purpose random access Preamble of UE transmission so, on one of them component carrier in determined a plurality of component carriers, send accidental access response message to UE, certainly, also can on a plurality of component carriers in determined a plurality of component carriers, send accidental access response message to UE.
Certainly, in step 301, if one or more component carriers that eNB need to monitor while entering DRX state by special-purpose Indication message notice UE, in this step 306, to eNB, sending after special-purpose random access Preamble, can be by receiving random access response message on the component carrier of indicating in specific messages.Its concrete implementation procedure is similar, does not repeat them here.
In the embodiment of the present invention, when eNB sends DRX order to UE, one or more component carriers that notice UE need to monitor when entering DRX state, UE is after receiving described DRX order, enter DRX state, and to eNB, sending after special-purpose random access Preamble receiving random access response message on the component carrier of indication in DRX order.ENB receives after special-purpose random access Preamble, on any one component carrier on a component carrier of notice UE or in a plurality of component carrier, sends accidental access response message.Hence one can see that, when downlink data reaches and in the random access procedure of uplink loss, eNB is when sending DRX order to UE, inform the component carrier that UE need to monitor, make UE when access eNB, while sending special-purpose random access Preamble to eNB, can know the component carrier that needs monitoring, thereby reduce the power consumption of UE; Meanwhile, eNB, when receiving the random access Preamble of UE transmission special use, sends accidental access response message, thereby has saved downlink radio resource on the component carrier of prenoticing to UE.
The second preferred embodiment:
In this embodiment, before UE enters discontinuous reception DRX state, evolution base station eNB and UE consult the component carrier that UE should monitor during state of activation, and determine that according to the result of consulting UE at least needs the component carrier of monitoring when the uplink loss.And will determine that under DRX state, user equipment (UE) at least needs the component carrier of monitoring to notify to UE.So that UE is when receiving the DRX order of eNB transmission, the component carrier that at least needs when the uplink loss from described UE to monitor, determine a component carrier, and monitor the PDCCH on described component carrier, and send after special-purpose random access lead code receiving eNB, to eNB, send the random access Preamble of this special use, eNB is after receiving special-purpose random access Preamble, on the component carrier that at least needs to monitor at predetermined UE, send accidental access response message, its concrete implementation procedure refers to embodiment bis-.
Embodiment bis-
Also referring to Fig. 4, is the flow chart of the method for a kind of random access of providing in the embodiment of the present invention 2; Described method comprises:
Step 400: before UE enters discontinuous reception DRX state, determine that UE at least needs the component carrier of monitoring when uplink loss, and will at least need the component carrier of monitoring to notify to UE;
That is to say, evolution base station eNB consults with UE the component carrier that should monitor during state of activation before UE enters discontinuous reception DRX state, and determine that according to the result of consulting UE at least needs one or more component carriers of monitoring when the uplink loss, and will at least need one or more component carriers of monitoring to notify to UE;
Particularly, can adopt static state, semi-static or dynamic mode to consult to determine.So-called static mode, the component carrier that need to monitor while referring to stipulate that by system a certain definite algorithm determines that UE enters DRX.So-called semi-static mode, refers to change by system message the algorithm of determining that component carrier that UE need to monitor while entering DRX is used.So-called dynamic mode, refers to that the mode of carrying out interacting message by eNB and UE before UE enters DRX state determines the component carrier that need to monitor while entering DRX.
A kind of mode of dynamic negotiation is: before UE enters DRX state, UE select a component carrier as it monitoring carrier wave when the DRX state, and by selected component carrier notice eNB, when eNB agrees to the monitoring carrier wave of UE selection, eNB sends acknowledge message to UE, otherwise eNB is UE, reselect a component carrier as monitoring carrier wave, and notify UE.
The mode of another kind of dynamic negotiation is: before UE enters DRX state, eNB select a component carrier as it monitoring carrier wave when the DRX state, and by selected component carrier notice UE, when UE agrees to the monitoring carrier wave of eNB selection, UE sends acknowledge message to eNB, otherwise UE reselects a component carrier as monitoring carrier wave, and notifies eNB.
Step 401:eNB sends DRX order to UE, and notice UE enters DRX state.
Step 402:UE receives after this DRX order, determines the monitoring carrier wave of consulting in advance with eNB monitor step 400 when DRX state in; When wakeup time arrives or in " on duration " stage, UE monitors the PDCCH channel of above-mentioned definite component carrier.
Wherein, a described definite component carrier can adopt static or semi-static mode, does not adopt the mode of consulting monitoring carrier wave in step 400.So-called static mode is: when UE is entering after DRX state, in the on duration stage, monitor UE and entering n the component carrier (n=1...N1, N1 represents the component carrier number that UE is used before entering DRX state) in the component carrier using before DRX state; Or n component carrier (n=1...N2 in all component carriers of monitoring community, N2 represents the component carrier number of community), or n the component carrier (n=1...N3, N3 represents engine component carrier number) in monitoring engine component carrier.Here so-called engine component carrier can be that the specific engine component carrier in community can be also the specific engine component carrier of UE, and the specific engine component carrier in so-called community refers to control ability in all component carriers of community and is better than the one or more component carriers of other component carriers; The specific component carrier of so-called UE, refers to that in the component carrier that UE uses, control ability is better than the one or more component carriers of other component carriers.Wherein, the value of n is positive integer, and is preset by system.
Wherein, a component carrier of determining can be the component carrier that frequency is minimum, can be also the component carrier that sequence number is minimum, and the embodiment of the present invention is not restricted.
Wherein, described semi-static mode is: by the mode of system message, notify the UE under DRX state, it is in follow-up DRX process, when the component carrier that should monitor during the stage on duration.When UE receives after this system message, the component carrier of indicating in monitoring this system message according to the indication of system message in the on duration stage.Wherein, the component carrier that should monitor during the stage on duration, be specially, UE after the on duration stage should monitor it and entering n component carrier (n=1...N1 in the component carrier using before DRX state, N1 represents the component carrier number that UE is used before entering DRX state) or monitor n component carrier (n=1...N2 in all component carriers of community, N2 represents the component carrier number of community), or n the component carrier (n=1...N3, N3 represents engine component carrier number) in monitoring engine component carrier.Here so-called engine component carrier can be that the specific engine component carrier in community can be also the specific engine component carrier of UE, and the specific engine component carrier in so-called community refers to control ability in all component carriers of community and is better than the one or more component carriers of other component carriers; The specific component carrier of so-called UE, refers to that in the component carrier that UE uses, control ability is better than the one or more component carriers of other component carriers.Wherein, the value of n is positive integer, and is set by eNB.
Step 403: when the downlink data of UE arrives, eNB judges that UE, whether in uplink synchronous state, if so, sends to UE (not shown) by described downlink data; Otherwise, execution step 404;
Step 404:eNB is that UE distributes PDCCH and special-purpose random access lead code, to indicate UE to carry out random access procedure, obtains uplink synchronous; Wherein, in this PDCCH, eNB is that UE distributes a special-purpose random access Preamble.
Step 405:UE, obtain special-purpose random access Preamble from PDCCH after, sends the random access Preamble of described special use to eNB; UE, after sending random access Preamble, is consulting receiving random access response message on definite component carrier in advance.
Step 406:eNB, after receiving the random access Preamble of described special use, is consulting to send accidental access response message on definite component carrier in advance; In step 400 or step 402, be to send accidental access response message on the definite component carrier of UE.
In embodiments of the present invention, at UE, receive after the DRX order of eNB transmission, consulting definite entering under DRX state at UE with eNB in advance, in the component carrier that at least needs to monitor, determine a component carrier, and monitor the PDCCH on this component carrier when wakeup time arrives or in the on duration stage; That is to say, at UE, to eNB, send after special-purpose random access Preamble, can know the component carrier that needs monitoring, thereby reduced the power consumption of UE; Certainly, at eNB, receive after the random access Preamble of described special use, on the component carrier of monitoring at UE, send accidental access response message, thereby saved downlink radio resource.
The third preferred embodiment:
In this embodiment, at UE, enter after DRX state, eNB is when distributing the random access lead code of PDCCH and special use for UE, the component carrier notice UE that simultaneously UE need to be monitored, and the special-purpose random access Preamble of difference that distributes on the PDCCH of different component carriers of indication receiving random access response message or eNB on this component carrier, when UE receives after the PDCCH information of certain component carrier, by this PDCCH, to eNB, send special-purpose random access Preamble, eNB can be known the current component carrier of monitoring of UE by special-purpose Preamble, and send accidental access response message on this component carrier.Its concrete implementation procedure refers to embodiment tri-;
Embodiment tri-
Refer to Fig. 5, the flow chart of the method for a kind of random access providing for the embodiment of the present invention 3; Described method comprises:
Step 501:eNB sends DRX order to UE, and notice UE enters DRX state;
Step 502:UE receives after this DRX order, enters DRX state;
Step 503: when the downlink data of UE arrives, judge that UE, whether in uplink synchronous state, if so, sends to UE (not shown) by described downlink data; Otherwise, execution step 504;
Step 504:eNB determines that UE at least needs the component carrier of monitoring when uplink loss, and described component carrier is used for sending accidental access response message to UE; Particularly, the component carrier that eNB can support according to UE and/or current ongoing business demand determine that UE at least needs the component carrier of monitoring.
Step 505:eNB is that UE distributes PDCCH, and in PDCCH information, carries the component carrier of special-purpose random access lead code and receiving random access response message;
That is to say, by distributing PDCCH to carry out random access procedure with indication UE, obtain uplink synchronous; Meanwhile, in the PDCCH information sending, eNB is that UE distributes a special-purpose random access Preamble, and in this PDCCH information, carries the component carrier of indication UE receiving random access response message.
Step 506:UE sends special-purpose random access Preamble to eNB;
That is to say, UE is that UE distributes a PDCCH receiving eNB, and in PDCCH information, carry after the component carrier of special-purpose random access lead code and receiving random access response message, according to the random access lead code of described special use, carry out the random access procedure of non-competing formula, to eNB, send special-purpose random access Preamble.Meanwhile, UE after sending special-purpose random access Preamble, receiving random access response message on the component carrier of indicating in PDCCH.
Step 507:eNB receives UE and sends after special-purpose random access Preamble, on the component carrier of indicating in the PDCCH of step 505 information, sends accidental access response message.
Certainly, in above-mentioned steps 504 to 507, eNB also can distribute different special-purpose random access Preamble on the PDCCH of different component carriers, concrete as step 504 ' to 507 ' (not shown):
Step 504 ': eNB distributes the random access Preamble of different special uses on the PDCCH of different component carriers for UE.
Step 505 ': eNB sends PDCCH information to UE on a plurality of component carriers, and in this PDCCH information, carries different special-purpose random access Preamble.
Step 506 ': UE receives after the PDCCH information on a plurality of component carriers, from these PDCCH information, carries in special-purpose random access Preamble and selects a Preamble to send to eNodeB;
That is to say, by allowing the PDCCH information of different component carriers carry different special-purpose random access Preamble, eNB just can be known the component carrier that UE is monitoring by the special-purpose Preamble receiving.
Step 507 ': receive UE and send after special-purpose random access Preamble, on component carrier corresponding to this Preamble, send accidental access response message.
In this embodiment, in above-mentioned steps 504, in using PDCCH information, carry the component carrier of indication UE receiving random access response message, also can notify UE with other downstream message, such as using MAC (Medium Access Control) to control the form of PDU (Protocol Data Unit) or the component carrier of RRC message informing UE receiving random access response message, the embodiment of the present invention is not restricted.
From above-described embodiment, the embodiment of the present invention is by least needing UE the component carrier of monitoring to inform UE, so that UE is after sending random access request, monitor the PDCCH information on this component carrier, thereby solved when downlink data arrives eNB, and now in the random access procedure of the UE under DRX state in uplink loss situation, when UE access eNB, the ambiguous problem of descending component carrier that UE monitors.That is to say, after UE sends special-purpose random access Preamble, can know that eNB should send the component carrier of accidental access response message.Meanwhile, eNB, after receiving special-purpose random access Preamble, also knows and need on which component carrier, send accidental access response message, from having improved the utilance of downlink resource, has also reduced the power consumption of UE simultaneously.
Embodiment based on said method, the embodiment of the present invention also provides a kind of evolution base station, its structural representation refers to Fig. 6, described evolution base station comprises: determining unit 61, notification unit 62, message sink unit 63 and message response unit 64, wherein said determining unit 61, for one or more component carriers of determining that under DRX state, user equipment (UE) need to be monitored; Described notification unit 62, notifies to UE for one or more component carriers that determining unit 61 is determined; Described message sink unit 63, sends special-purpose random access lead code for receiving UE; Described message response unit, for receiving after special-purpose random access lead code in message sink unit 63, a component carrier on sends accidental access response message in one or more component carriers of determining in described determining unit 61.
Wherein, described determining unit at least comprises one of the following: the first determining unit, the second determining unit and the 3rd determining unit, wherein, described the first determining unit, for one or more component carriers of determining that UE need to monitor when entering discontinuous reception DRX state; Described the second determining unit, for before UE enters discontinuous reception DRX state, this second determining unit and UE consult this UE under DRX state and the component carrier that should monitor during state of activation, and determine according to the result of consulting one or more component carriers that UE need to monitor when the uplink loss; Described the 3rd determining unit, for when distributing the random access lead code of one or more special uses for UE, determines the one or more component carriers that need monitoring, and described component carrier is used for sending accidental access response message.
Accordingly, described notification unit at least comprises one of the following: the first notification unit, the second notification unit and third notice unit, wherein, described the first notification unit, notifies to UE for one or more component carriers that the definite UE of described the first determining unit need to be monitored; Described the second notification unit, notifies to UE for one or more component carriers that the definite UE of described the second determining unit need to be monitored when the uplink loss; Described third notice unit, for one or more component carrier notice UE that UE need to monitor when distributing special-purpose random access lead code for UE that described the 3rd determining unit is determined.
Wherein, described message response unit, while sending special-purpose random access lead code specifically for receiving UE in message sink unit, sends accidental access response message at least one component carrier in described definite one or more component carriers.
In described evolution base station, the implementation procedure of the function and efficacy of unit refers to the implementation procedure of said method, does not repeat them here.
Accordingly, the embodiment of the present invention also provides a kind of terminal equipment, and its structural representation refers to Fig. 7, and described terminal equipment comprises: receiving element 71, monitoring unit 72, message sending unit 73 and message sink unit 74.Wherein, described receiving element 71, for receiving the notice of one or more component carriers that UE that eNB sends need to monitor; Described monitoring unit 72, receives for monitoring described receiving element 71 one or more component carriers that notice needs monitoring; Described message sending unit 73, for sending special-purpose random access lead code to eNB; Described message sink unit 74 for sending in message sending unit 73 after the random access lead code of described special use, receives the accidental access response message that eNB sends on a component carrier in a component carrier of described monitoring or a plurality of component carrier.
Wherein, described receiving element at least comprises one of the following: the first receiving element, the second receiving element and the 3rd receiving element, described the first receiving element, sends for receiving eNB the one or more component carriers that need to monitor when UE enters discontinuous reception DRX state by DRX order or specific messages; Described the second receiving element, for entering at UE before discontinuous reception DRX state, receives the one or more component carriers that need to monitor when UE uplink loss that eNB sends; Described the 3rd receiving element, for when receiving eNB and distribute the random access lead code of one or more special uses, receives one or more component carriers that eNB notice UE need to monitor, and described component carrier is used for sending accidental access response message.
Described receiving element can also comprise: selected cell, while distributing the random access lead code of a plurality of special uses for receiving eNB at described the 3rd receiving element, from the random access lead code of described a plurality of special uses, select a component carrier corresponding to special-purpose random access lead code to monitor a component carrier as needs, and will monitor a component carrier notice monitoring unit as needs.
In described terminal equipment, the implementation procedure of the function and efficacy of unit refers to the implementation procedure of said method, does not repeat them here.
Accordingly, the embodiment of the present invention also provides a kind of random access system, its structural representation refer to as 8 in, comprise: eNB81 and UE82, wherein, described eNB81, for one or more component carriers of determining that under DRX state, UE need to monitor, described component carrier is notified to UE; And send after special-purpose random access lead code receiving UE, in a described definite component carrier or a plurality of component carrier, on a component carrier, send accidental access response message; Described UE82, sends the notice of one or more component carriers that UE need to monitor for receiving eNB, and monitors the described one or more component carriers monitored of needing; And to eNB, sending after special-purpose random access lead code, in a component carrier of described monitoring or a plurality of component carrier, on a component carrier, receive the accidental access response message that eNB sends.
Described eNB comprises: determining unit 811, notification unit 812, message sink unit 813 and message response unit 814; Described UE comprises: receiving element 821, monitoring unit 822, message sending unit 823 and message sink unit 824.The implementation procedure of the function and efficacy of its unit refers to the implementation procedure of above-mentioned corresponding eNB and UE, does not repeat them here.
Through the above description of the embodiments, those skilled in the art can be well understood to the mode that the present invention can add essential general hardware platform by software and realize, and can certainly pass through hardware, but in a lot of situation, the former is better execution mode.Understanding based on such, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product can be stored in storage medium, as ROM/RAM, magnetic disc, CD etc., comprise that some instructions are with so that a computer equipment (can be personal computer, server, or the network equipment etc.) carry out the method described in some part of each embodiment of the present invention or embodiment.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (15)
1. an accidental access method, is characterized in that, comprising:
Determine one or more component carriers that under discontinuous receiving state, subscriber equipment need to be monitored when uplink loss state;
Described one or more component carriers are notified to subscriber equipment;
Send after special-purpose random access lead code receiving subscriber equipment, on a described definite component carrier or a component carrier in a plurality of component carrier, send accidental access response message.
2. method according to claim 1, is characterized in that, described described one or more component carriers are notified to subscriber equipment and comprised:
When notifying user equipment enters discontinuous receiving state, one or more component carriers that notifying user equipment need to be monitored.
3. method according to claim 2, is characterized in that, one or more component carriers that described notifying user equipment need to be monitored comprise:
When sending discontinuous reception order to subscriber equipment, one or more component carriers that notifying user equipment need to be monitored when entering discontinuous receiving state; Described discontinuous reception order is medium access control layer message, physical layer message or radio resource control layer message; Or
By specific messages notifying user equipment, when entering discontinuous receiving state, need one or more component carriers of monitoring, described specific messages is: discontinuous reception monitoring carrier wave command messages.
4. method according to claim 1, it is characterized in that, described described one or more component carriers are notified to subscriber equipment and comprised: when the random access lead code for the one or more special uses of user equipment allocation, one or more component carriers that notifying user equipment need to be monitored.
5. according to the method described in any one in claim 1 to 4, it is characterized in that, one or more component carriers that under described definite discontinuous receiving state, subscriber equipment need to be monitored comprise:
Before subscriber equipment enters discontinuous receiving state, evolution base station and subscriber equipment are consulted described subscriber equipment under discontinuous receiving state and the component carrier that should monitor during state of activation, and determine according to the result of consulting one or more component carriers that subscriber equipment need to be monitored when the uplink loss;
One or more component carrier notifying user equipment that described definite subscriber equipment need to be monitored when the uplink loss.
6. an accidental access method, is characterized in that, comprising:
The notice of one or more component carriers that the subscriber equipment that reception evolution base station sends need to be monitored when uplink loss state;
Monitor the one or more component carriers that need monitoring in described notice;
To evolution base station, sending after special-purpose random access lead code, on a component carrier of described monitoring or a component carrier in a plurality of component carrier, receiving the accidental access response message that evolution base station sends.
7. method according to claim 6, is characterized in that, the notice of one or more component carriers that the subscriber equipment that described reception evolution base station sends need to be monitored comprises:
The one or more component carriers that need to monitor when the subscriber equipment that reception evolution base station sends by discontinuous reception order or specific messages enters discontinuous receiving state; Described discontinuous reception order is: medium access control layer message, physical layer message or radio resource control layer message; Described specific messages is: discontinuous reception monitoring carrier wave command messages; Or
When receiving evolution base station and distribute a special-purpose random access lead code, receive the component carrier that evolution base station notifying user equipment need to be monitored; Or
When receiving the random access lead code of a plurality of special uses that evolution base station distributes, select from the random access lead code of described a plurality of special uses one component carrier that component carrier corresponding to special-purpose random access lead code that sends to evolution base station monitored as needs; Or
Before subscriber equipment enters discontinuous receiving state, one or more component carriers notice evolution base stations that subscriber equipment is monitored when being chosen in discontinuous receiving state, if evolution base station agreement, subscriber equipment receives evolution base station and sends the notice that agreement subscriber equipment is monitored one or more component carriers; Otherwise it is that subscriber equipment reselects one or more component carriers as the notice of monitoring carrier wave that subscriber equipment receives evolution base station; Or
Before subscriber equipment enters discontinuous receiving state, receiving evolution base station is the one or more component carriers of monitoring carrier wave when discontinuous receiving state of this subscriber equipment selection, if user equipment agrees, to evolution base station transmission acknowledge message; Otherwise subscriber equipment reselects one or more component carriers of monitoring when discontinuous receiving state and notifies evolution base station.
8. according to the method described in claim 6 or 7, it is characterized in that, in described monitoring notice, need one or more component carriers of monitoring to comprise:
When receiving the discontinuous reception order of evolution base station transmission, from described, need a component carrier of monitoring or from a plurality of component carriers, determine a component carrier, and monitoring described component carrier.
9. method according to claim 8, is characterized in that, described from a described component carrier of need monitoring or determine that from a plurality of component carriers a component carrier comprises:
At subscriber equipment, enter after discontinuous receiving state, subscriber equipment is defined as needing by monitor n component carrier in all component carriers of n component carrier in its component carrier using or community or n component carrier in engine component carrier before entering discontinuous receiving state during state of activation a component carrier of monitoring, wherein, the value of n is positive integer, and is preset by system; Or
Under subscriber equipment enters discontinuous receiving state, follow-up this subscriber equipment that receives evolution base station transmission by system message needs a component carrier of monitoring during state of activation, described component carrier comprises: n component carrier in n component carrier in the component carrier using before entering discontinuous receiving state or all component carriers of community or n component carrier in engine component carrier, wherein, the value of n is positive integer, and is set by evolution base station;
Wherein, described engine component carrier is that in all component carriers, control ability is better than the one or more component carriers of other component carriers.
10. an evolution base station, is characterized in that, comprising:
Determining unit, for one or more component carriers of determining that subscriber equipment under discontinuous receiving state need to be monitored when the uplink loss state;
Notification unit, notifies to subscriber equipment for one or more component carriers that determining unit is determined;
Message sink unit, sends special-purpose random access lead code for receiving subscriber equipment;
Message response unit, for receiving after special-purpose random access lead code in message sink unit, a component carrier on sends accidental access response message in one or more component carriers of determining in described determining unit.
11. evolution base stations according to claim 10, is characterized in that, described determining unit at least comprises one of the following:
The first determining unit, for one or more component carriers of determining that subscriber equipment need to be monitored when entering discontinuous receiving state;
The second determining unit, for before subscriber equipment enters discontinuous receiving state, consult this subscriber equipment under discontinuous receiving state and the component carrier that should monitor during state of activation with subscriber equipment, and determine according to the result of consulting one or more component carriers that subscriber equipment need to be monitored when the uplink loss;
The 3rd determining unit, for when being the random access lead code of the one or more special uses of user equipment allocation, determines the one or more component carriers that need monitoring, and described component carrier is used for sending accidental access response message.
12. evolution base stations according to claim 11, is characterized in that, described notification unit at least comprises one of the following:
The first notification unit, notifies to subscriber equipment for one or more component carriers that the definite subscriber equipment of described the first determining unit need to be monitored;
The second notification unit, notifies to subscriber equipment for one or more component carriers that the definite subscriber equipment of described the second determining unit need to be monitored when the uplink loss;
Third notice unit, for one or more component carrier notifying user equipment that subscriber equipment need to be monitored when being the random access lead code of user equipment allocation special use that described the 3rd determining unit is determined.
13. 1 kinds of terminal equipments, is characterized in that, comprising:
Receiving element, for receiving the notice of one or more component carriers that subscriber equipment that evolution base station sends need to monitor when the uplink loss state;
Monitoring unit, receives for monitoring described receiving element one or more component carriers that notice needs monitoring;
Message sending unit, for sending special-purpose random access lead code to evolution base station;
Message sink unit for after sending the random access lead code of described special use, receives the accidental access response message that evolution base station sends on a component carrier in a component carrier of described monitoring or a plurality of component carrier.
14. terminal equipments according to claim 13, is characterized in that, described receiving element at least comprises one of the following:
The first receiving element, sends for receiving evolution base station the one or more component carriers that need to monitor when subscriber equipment enters discontinuous receiving state by discontinuous reception order or specific messages;
The second receiving element, for before subscriber equipment enters discontinuous receiving state, receives the one or more component carriers that need to monitor when subscriber equipment uplink loss that evolution base station sends;
The 3rd receiving element, for when receiving evolution base station and distribute the random access lead code of one or more special uses, receive one or more component carriers that evolution base station notifying user equipment need to be monitored, described component carrier is used for sending accidental access response message.
15. terminal equipments according to claim 14, is characterized in that, described receiving element also comprises:
Selected cell, while distributing the random access lead code of a plurality of special uses for receiving evolution base station at described the 3rd receiving element, a component carrier selecting a component carrier corresponding to special-purpose random access lead code to monitor as needs from the random access lead code of described a plurality of special uses, and using a component carrier notice monitoring unit as needing to monitor.
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| PCT/CN2009/071069 WO2010111820A1 (en) | 2009-03-30 | 2009-03-30 | RANDOM ACCESS METHOD, eNodeB AND TERMINAL EQUIPMENT |
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| CN102246573A CN102246573A (en) | 2011-11-16 |
| CN102246573B true CN102246573B (en) | 2014-07-30 |
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| WO2010115304A1 (en) | 2009-04-09 | 2010-10-14 | 华为技术有限公司 | A method for random accessing, evolution-node b and terminal equipment |
| CN102300297B (en) * | 2011-09-07 | 2014-01-15 | 大唐移动通信设备有限公司 | Discontinuous reception judgment method and device for evolved node B |
| US9503982B2 (en) | 2012-04-20 | 2016-11-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and apparatuses for communication between a mobile terminal and a base station during a random access procedure |
| WO2016004994A1 (en) * | 2014-07-09 | 2016-01-14 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and apparatus for keep-alive signaling |
| CN105723779B (en) * | 2014-10-23 | 2019-07-09 | 华为技术有限公司 | A kind of method and device that data re-synchronize |
| US10531512B2 (en) * | 2015-04-01 | 2020-01-07 | Huawei Technologies Co., Ltd. | System and method for a tracking channel |
| EP3826392A4 (en) * | 2018-07-20 | 2021-08-25 | Beijing Xiaomi Mobile Software Co., Ltd. | Random access processing method and apparatus |
| WO2021094649A1 (en) * | 2019-11-15 | 2021-05-20 | Nokia Technologies Oy | Method for determining an initiation of random access procedure for a user equipment configured with power savings, and network node thereof |
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| CN102246573A (en) | 2011-11-16 |
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