CN102238754B - Non-competitive random access method and equipment on secondary cell (SCell) - Google Patents

Non-competitive random access method and equipment on secondary cell (SCell) Download PDF

Info

Publication number
CN102238754B
CN102238754B CN201110225840.4A CN201110225840A CN102238754B CN 102238754 B CN102238754 B CN 102238754B CN 201110225840 A CN201110225840 A CN 201110225840A CN 102238754 B CN102238754 B CN 102238754B
Authority
CN
China
Prior art keywords
subscriber equipment
community
random access
preamble
value information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201110225840.4A
Other languages
Chinese (zh)
Other versions
CN102238754A (en
Inventor
许芳丽
赵亚利
刘佳敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
Original Assignee
China Academy of Telecommunications Technology CATT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Priority to CN201110225840.4A priority Critical patent/CN102238754B/en
Publication of CN102238754A publication Critical patent/CN102238754A/en
Application granted granted Critical
Publication of CN102238754B publication Critical patent/CN102238754B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The invention discloses non-competitive random access method and equipment on a secondary cell (SCell). The method comprises the following steps: a network side notifies UE (user equipment) to initiate non-competitive random access on the SCell; the network side receives a special preamble from the UE; and the network side sends the scheduling information carrying TA (timing alignment) value information to the UE through the search space of a non-SCell public search space of the UE. In the embodiment of the invention, the UE can initiate a non-competitive random access process on the SCell; and moreover, the UE can finish the random access process on the premise of not monitoring the PDCCH (physical downlink control channel) of the SCell public search space, and can obtain the TA information on the SCell.

Description

The method and apparatus of non-competing random access on a kind of auxiliary community
Technical field
The present invention relates to communication technical field, relate in particular to the method and apparatus of non-competing random access on a kind of auxiliary community.
Background technology
(1) carrier aggregation technology.
LTE-A(LTE Advanced, senior LTE) peak rate than LTE(Long Term Evolution, Long Term Evolution) improve a lot, require to reach descending 1Gbps up 500Mbps, and LTE-A system requirements and LTE system have good compatibility.Based on improving peak rate, with LTE system compatible and make full use of the needs of frequency spectrum resource, in LTE-A system, introduce CA(Carrier Aggregation, carrier aggregation) technology.
Carrier aggregation technology refers to UE(User Equipment, subscriber equipment) the multiple cell(of polymerization community simultaneously), and multiple cell can provide the mechanism of data transport service simultaneously for UE.In carrier aggregation system, the carrier wave that each cell is corresponding can be continuous or discrete on frequency domain, and for LTE system compatible, the maximum bandwidth of each member carrier is 20MHz, the bandwidth between each member carrier can be identical or different.
In carrier aggregation system, a little PCell(Primary cell, the main plot divided into of UE work) and several SCell(Secondary cell, auxiliary community); Most of control and the work of signaling born in main plot, and as sent uplink feedback, the CQI(Channel Quality Indicator to downlink data, channel quality is indicated) report, ascending pilot frequency transmission etc.; Data-transformation facility is born mainly as resource in auxiliary community.
(2) the RA(Random Access in LTE system, at random access) mechanism.Random access in LTE system is divided into non-competing random access and the random access of competition.As shown in Figure 1, the process of non-competing random access comprises:
Msg0(message 0): base station (as eNB) divides the special ra-PreambleIndex(Random Acelless Preamble that is used in non-competing random access to UE, random access lead code) and the random PRACH(Physical Random Access Channel using that accesses, Physical Random Access Channel) resource ra-PRACH-MaskIndex(PRACH Mask Index, PRACH Mask numbering).Arrive for downlink data the non-competing random access causing and will use PDCCH(Physical Downlink Control Channel, Physical Downlink Control Channel) carry above-mentioned information; The non-competing random access causing for switching will be by RRC(Radio Resource Control, Radio Resource control) signaling carries above-mentioned information.
Msg1:UE, according to ra-PreambleIndex and the ra-PRACH-MaskIndex of Msg0 instruction, sends the dedicated preamble (leading) of specifying in the PRACH resource of specifying to base station.Base station is receiving after Msg1, calculates up TA(Timing Alignment, Timing Advance according to Msg1).
Msg2: base station sends RAR(Random Access Response to UE, accidental access response), in this accidental access response, comprise the UL grant(uplink authorization that Timing Advance and follow-up uplink transmission resource are distributed), this Timing Advance is for the timing relationship of the follow-up uplink of UE.RA-RNTI(Random Radio Network Temporary Identity for the PDCCH of carrying Msg2 scheduling message, random Radio Network Temporary Identifier) scrambling, and RA-RNTI is unique corresponding with the running time-frequency resource that sends Msg1 in 10ms window; In Msg2, also carry in addition preamble ID(mark), UE determines that by RA-RNTI and preamble ID this Msg2 is corresponding with the Msg1 of its transmission.
(3) the many TA of Multi-TA() scene.
Current LTE-A R10 only supports single TA scene, i.e. the TA of all communities of UE polymerization is identical; But in LTE-A R11, introduced many TA scene, i.e. the TA of all communities of UE polymerization may be different.The scene that produces many TA comprises: Inter-band(frequency band) CA and Intra-band CA, but in band, part cell, through RRH(Remote Radio Head, zooms out antenna) or repeater(repeater).Concrete, as shown in Fig. 2 A-2D, many TA typical scene of 3GPP definition comprises:
A, UE polymerization F1 and F2, F1 coverage is less than F2, and F1 and F2 belong to different band, i.e. inter-band CA, as shown in Figure 2 A.
B, UE polymerization F1 and F2, and F1 and F2 belong to different band, i.e. inter-band CA, as shown in Figure 2 B.
C, UE polymerization F1 and F2, F1 and F2 belong to identical band and F2 process repeater, and the transfer of data of intra-band CA and part cell is through repeater, as shown in Figure 2 C.
D, UE polymerization F1 and F2, F1 and F2 belong to different band and F2 process repeater, and the transfer of data of inter-band CA and part cell is through repeater, as shown in Figure 2 C.
E, UE polymerization F1 and F2, F1 and F2 belong to identical band and F2 process repeater, and the transfer of data of intra-band CA and part cell is through RRH, as shown in Figure 2 D.
F, UE polymerization F1 and F2, F1 and F2 belong to different band and F2 process repeater, and the transfer of data of inter-band CA and part cell is through RRH, as shown in Figure 2 D.
It should be noted that for the ease of the TA of many TA system is safeguarded, the current TA group(group of having introduced) concept, belong to the cell of same TA group, its UL CC(uplink member carrier) can use identical TA value; Belong to the cell of different TA group, the TA value of its UL CC is not identical.In a TA group, UE only needs He Yige community to keep uplink synchronous, can realize the uplink synchronous to all communities in TA group.
(4) the blind check ability of the UE of Rel-10 CA.
In Rel-10 CA, UE only carries out the monitoring of common signal channel and the processing of public procedure on PCell, the UE in carrier aggregation state only need to monitor the required PDCCH of public procedure and PDSCH(Physical Downlink Shared Channel, Physical Downlink Shared Channel on PCell) transmission.For example, required PDCCH in broadcast or random access procedure, UE only monitors in the public search space of PCell.On SCell, if configured PDCCH transmission, UE only need to monitor the PDCCH in the dedicated search space on SCell.Therefore for the UE ability of Rel-10, CA UE is in the design of physical layer PDCCH blind check number of times, not included in the upper blind check requirement of monitoring public search space part of SCell.
Realizing in process of the present invention, inventor finds at least to exist in prior art following problem: in prior art, not yet define for the mode of carrying out random access on SCell.
Summary of the invention
The embodiment of the present invention provides the method and apparatus of non-competing random access on a kind of auxiliary community, to initiate non-competing random access procedure on SCell.
In order to achieve the above object, the embodiment of the present invention provides the method for non-competing random access on a kind of auxiliary community, comprising:
On network side notifying user equipment Fu community, initiate non-competing random access;
Described network side receives the Special leader preamble from described subscriber equipment;
Described network side sends the schedule information of carrying timing advance TA value information by the search volume of described subscriber equipment Fei Fu community public search space to described subscriber equipment.
The embodiment of the present invention provides the method for non-competing random access on a kind of auxiliary community, comprising:
Subscriber equipment receives from the notice of initiating non-competing random access on network side Fu community;
Described subscriber equipment is initiated non-competing random access on described auxiliary community, and sends dedicated preamble on described auxiliary community;
Described subscriber equipment is monitored the schedule information of carrying TA value information in the search volume of self Fei Fu community public search space.
The embodiment of the present invention provides a kind of network equipment, comprising:
The first sending module, for initiating non-competing random access on notifying user equipment Fu community;
Receiver module, for receiving the Special leader preamble from described subscriber equipment;
The second sending module, sends the schedule information of carrying timing advance TA value information for the search volume by described subscriber equipment Fei Fu community public search space to described subscriber equipment.
The embodiment of the present invention provides a kind of subscriber equipment, comprising:
Receiver module, for receiving from the notice of initiating non-competing random access on network side Fu community;
Sending module for initiate non-competing random access on described auxiliary community, and sends dedicated preamble on described auxiliary community;
Processing module, for monitoring the schedule information of carrying TA value information in the search volume of Fei Fu community public search space.
Compared with prior art, the present invention at least has the following advantages:
Can realize UE and on SCell, initiate non-competing random access procedure, and UE can, without monitoring under the prerequisite of SCell public search space PDCCH, complete this random access procedure, and obtain the TA information on SCell.
Brief description of the drawings
In order to be illustrated more clearly in technical scheme of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the schematic diagram of non-competing random access procedure in prior art;
Fig. 2 A-2D is the schematic diagram of many TA typical scene in prior art;
Fig. 3 is the method flow schematic diagram of non-competing random access on a kind of auxiliary community that provides of the embodiment of the present invention one;
Fig. 4 is the method flow schematic diagram of non-competing random access on a kind of auxiliary community that provides of the embodiment of the present invention two;
Fig. 5 is the method flow schematic diagram of non-competing random access on a kind of auxiliary community that provides of the embodiment of the present invention three;
Fig. 6 is the method flow schematic diagram of non-competing random access on a kind of auxiliary community that provides of the embodiment of the present invention four;
Fig. 7 is the method flow schematic diagram of non-competing random access on a kind of auxiliary community that provides of the embodiment of the present invention five;
Fig. 8 is the method flow schematic diagram of non-competing random access on a kind of auxiliary community that provides of the embodiment of the present invention six;
Fig. 9 is the method flow schematic diagram of non-competing random access on a kind of auxiliary community that provides of the embodiment of the present invention seven;
Figure 10-Figure 15 is the expression way schematic diagram of SCell TA value in the embodiment of the present invention eight;
Figure 16-Figure 18 is the form schematic diagram of in the embodiment of the present invention nine, RAR message being packed;
Figure 19 is a kind of network equipment structural representation that the embodiment of the present invention ten provides;
Figure 20 is a kind of user device architecture schematic diagram that the embodiment of the present invention 11 provides.
Embodiment
Random access procedure, for setting up the uplink synchronous of UE and base station, by the sub-frame of uplink for random access configuring in system, uses PRACH transmission preamble sequence, and the accidental access response that receives base station feedback is realized uplink synchronous.
In prior art, for the UE that supports carrier aggregation, a PCell and at least one SCell can be distributed to it in base station, and in current LTE-A Rel-10 system, the random access of CA UE occurs over just on PCell; But in LTE-A Rel-11 system, in order to support the carrier aggregation of up different frequency range, and the carrier aggregation deployment way of macro base station (Macro eNB) and RRH mixing, PCell cause propagation time different situations different from SCell signal path will be there will be, be the uplink synchronous that SCell needs independent foundation maintenance and base station, therefore need on SCell, carry out random access and adjust to realize TA.
Further, due to the PDCCH blind check limited ability of current C A UE, cannot on SCell, in public search space, monitor the required PDCCH with RA-RNTI of random access procedure, and the random access procedure on SCell is triggered by network side, the synchronization delayed time minimum that non-competing random access procedure is introduced, and at RACH(Random Access Channel, Random Access Channel) in the situation of resource abundance, network side only can trigger non-competitive random access, therefore, the embodiment of the present invention provides the method and apparatus of non-competing random access on a kind of auxiliary community, in non-competing random access procedure, do not need UE on SCell, to monitor public search space PDCCH.
Below in conjunction with the accompanying drawing in the present invention, the technical scheme in the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment mono-
The embodiment of the present invention one provides the method for non-competing random access on a kind of auxiliary community, and as shown in Figure 3, the method comprises the following steps:
Step 301, network side (as eNB) notice is initiated non-competing random access on UEFu community.For example, eNB is by PDCCH order(order) or the message informing UE such as RRC initiate non-competing random access procedure at SCell.
Step 302, UE receives from the notice of initiating non-competing random access on network side Fu community.
Step 303, initiates non-competing random access on UEFu community, Bing Fu sends dedicated preamble on community.
Step 304, network side receives the dedicated preamble from UE.Wherein, in the time receiving dedicated preamble in PRACH resource corresponding to network side Fu community, identifying dedicated preamble by dedicated preamble is that this UE sends.
Step 305, network side sends the schedule information of carrying TA value information by the dedicated search space of UE to UE.
Step 306, UE monitors the schedule information of carrying TA value information in the dedicated search space of self.
For the processing procedure of step 305 and step 306, can be divided into following processing mode:
Mode one:
Network side sends the schedule information of carrying TA value information by the dedicated search space of UE to UE, comprise: in dedicated search space corresponding to scheduling carrier wave Yu Fu community corresponding to network side Fu community, the PDCCH(that sends the RA-RNTI scrambling corresponding with dedicated preamble transfer resource to UE is not in order to increase blind check, and the PDCCH that can be limited to the RA-RNTI scrambling of UE search volume transmission adopts DCI (Downlink Control Information) format(form) 1A).UE monitors the schedule information of carrying TA value information in the dedicated search space of self, comprise: in dedicated search space corresponding to scheduling carrier wave Yu Fu community corresponding to UEFu community, monitor the PDCCH of RA-RNTI scrambling, wherein RA-RNTI is that the PRACH resource using according to transmission preamble obtains.
In the embodiment of the present invention, the downlink resource that network side distributes by the PDSCH that on the PDCCH notice UEFu community of RA-RNTI scrambling, transmission bearer accidental access response message uses.On the resource Fu community of indicating in the PDCCH of UE by RA-RNTI scrambling, receive PDSCH channel data, and resolve and process according to the form of accidental access response message.
Concrete, in scheduling carrier wave corresponding to eNBKe Fu community (sending the SCell of preamble) the dedicated search space corresponding with this SCell, notify UE on SCell, to transmit the downlink resource that corresponding Msg2 PDSCH distributes by the mode of PDCCH masked with RA-RNTI; Corresponding, UE can be on scheduling carrier wave corresponding to this SCell dedicated search space corresponding with this SCell, monitors PDCCH masked with RA-RNTI, and on corresponding SCell, receives and process corresponding Msg2 message according to the information of wherein instruction.
Further, if UE is at RAR window(window) in the PDCCH of RA-RNTI scrambling do not detected or dedicated preamble message in corresponding accidental access response message, do not detected, on ZeUEFu community, carry out dedicated preamble retransmission process; Afterwards, if when dedicated preamble transmission reaches maximum times, random access procedure is not success still, UE can stop random access procedure, and/or send random access procedure failure (as RRC message or MAC(Media Access Control, medium access control) message to network side).
Mode two: network side sends the schedule information of carrying TA value information by the dedicated search space of UE to UE, comprising: network side carries the TA value information in the TA Group under auxiliary community in the downlink dedicated data that send to UE.UE monitors the schedule information of carrying TA value information in the dedicated search space of self, comprising: UE always obtains the TA value information in the TA Group under auxiliary community in the downlink dedicated data of automatic network side.
In the embodiment of the present invention, TA value information is the TA value information of 11bit, and the expression way of the TA value information of 11bit is the TAC(Timing Alignment command that comprises 11bit, Timing Advance order) MAC (medium access control) CE(Control Element, control unit) information, and LCID distinguishes by reservation logic channel logo, and/or by radio resource control RRC signal deployment.
Concrete, eNB can carry the initial time lead value in the TA Group under this SCell, i.e. the TA value information of 11bit in descending UE dedicated data transmission.Afterwards, UE is at private downlink DL-SCH(DSCH Downlink Shared Channel) obtain and carry accordingly the information of 11 bit TA values in transfer of data, and be used in follow-up user uplink data transmitting procedure as absolute up Timing Advance; And receive after the TAC MAC CE of 11bit as UE, using this TA value as absolute lead for adjusting the up transmitting time point of this TA Group, and/or restart the TATimer of the TA Group under auxiliary community.
Further, if UE does not receive the TA value information in the TA Group under auxiliary community in specified window, on ZeUEFu community, carry out dedicated preamble retransmission process; Afterwards, if dedicated preamble transmission reaches the still not success of maximum times random access procedure, UE stops random access procedure, and/or sends random access procedure failure to network side.
In sum, in the embodiment of the present invention, at network side, after triggering UE initiates non-competing random access on SCell, when receiving the dedicated preamble of distribution in the PRACH resource of the SCell that network side is distributing, network side identifies this UE according to this information, carries out afterwards the scheduling of the downstream feedback transmission to this preamble information in the dedicated search space of this UE; In UE side, when receiving after UE the UE PRACH resource and special Preamble information transmitted on SCell that network side distributes, UE carries out preamble transmission on corresponding SCell, in the dedicated search space of UE, monitor afterwards the schedule information of corresponding Msg2 message, obtain Timing Advance information.
By technique scheme, can realize UE and on SCell, initiate non-competing random access procedure, and UE can, without monitoring under the prerequisite of SCell public search space PDCCH, complete this random access procedure, and obtain the TA information on SCell.
Embodiment bis-
The embodiment of the present invention two provides the method for non-competing random access on a kind of auxiliary community, and as shown in Figure 4, the method comprises the following steps:
Step 401, eNB initiates non-competing random access procedure by message informing UE such as PDCCH order or RRC at SCell.
Step 402, UE sends dedicated preamble on SCell.Select the same with the mode on PCell in current agreement with the mode that sends dedicated preamble.
Step 403, eNB identifies this UE by dedicated preamble, and in the UE dedicated search space corresponding with this SCell, sends the PDCCH that transmits corresponding RA-RNTI scrambling with preamble in the corresponding scheduling carrier wave of this SCell.
Step 404 if UE monitors the PDCCH of corresponding RA-RNTI scrambling, according to the resource of indicating in PDCCH, receives PDSCH information on SCell, and sets it as the decoding data processing of Msg2 DL-SCH transmission.
In the embodiment of the present invention, if wherein carry the preamble information identical with this UE, thinking random accesses successfully, the TA information of carrying apply RAR message in the SCell TAGroup of SCell and correspondence in, start or restart TATimer, and on this SCell, send follow-up uplink UE exclusive data according to the UL Grant in RAR MAC CE, wherein timing relationship is with the existing timing relationship of current agreement.
If wherein do not comprise the preamble information of this UE, UE continues to monitor PDCCH or the corresponding PDSCH transfer of data of follow-up RA-RNTI scrambling; If be that UE monitors the time window of Msg2 at RAR window() in UE the PDCCH of corresponding RA-RNTI scrambling do not detected, or UE do not detect special Preamble message, UE carries out preamble retransmission process on this SCell; If Preamble transmission reaches maximum times random access procedure and still do not become, UE stops random access procedure this time, and sends a notification message to eNB, notifies its random access procedure failure.
Embodiment tri-
The embodiment of the present invention three provides the method for non-competing random access on a kind of auxiliary community, and as shown in Figure 5, the method comprises the following steps:
Step 501, eNB initiates non-competing random access procedure by message informing UE such as PDCCH order or RRC at SCell.
Step 502, UE sends dedicated preamble on SCell.Select the same with the mode on PCell in current agreement with the mode that sends dedicated preamble.
Step 503, eNB identifies this UE by dedicated preamble, and in the downlink dedicated data to UE, comprises the initial TA value information of UE (as the downlink data of 11 bits) in subsequent transmission.Wherein, the TA information that can carry 11bit by introducing new MAC CE.
Step 504, UE is receiving after this TA information, applies this effective TA value under this SCell in TA Group, and starts or restart TATimer.
In the embodiment of the present invention, if in specified window, (this specified window can be existing RAR window to UE, also can be newly to define window), do not receive effective 11bit TA information of the affiliated TAGroup of this SCell, think this random access failure, on SCell, retransmit Preamble, again initiate RA process; Reach maximum times if preamble sends, random access procedure is still failed, by RRC or MAC message informing eNB, notifies its random access procedure failure.
Embodiment tetra-
The embodiment of the present invention four provides the method for non-competing random access on a kind of auxiliary community, be assumed to be UE and configured 1 PCell and 1 SCell, the transfer of data on SCell is to dispatch by the PDCCH on PCell, and accesses successfully at random, as shown in Figure 6, the method comprises the following steps:
Step 601, eNB sends PDCCH order on PCell, and notice UE initiates non-competing random access on SCell.
Step 602, UE sends dedicated preamble on SCell.
Step 603, eNB receives dedicated preamble on SCell, and identifies this UE.
Step 604, in the eNB dedicated search space that this SCell is corresponding on the PCell of this UE, sends to UE by the PDCCH of RA-RNTI scrambling, and corresponding Msg2 DL-SCH data are transmitted in the corresponding position of SCell simultaneously simultaneously.
Step 605, UE is according to the resource of the PDCCH instruction of the RA-RNTI scrambling on PCell, carries out DL-SCH data processing (as comprise physical layer data demodulating and decoding, and the MAC PDU of MAC layer resolves) at SCell correspondence position.
Further, if determine the preamble information that comprises this UE transmission in the RAR message of carrying, think random and access successfully, and apply the TA value of this RAR message, restart TATimer simultaneously; Wherein, the transmission of this RAR message is identical with the mode specifying in current agreement, does not have HARQ to retransmit, and the information that multiple preamble are corresponding may be incorporated in a piece of news to be transmitted.
Step 606, UE, according to UL Grant information corresponding in RAR message, initiates UE dedicated uplink transfer of data on SCell.
In the embodiment of the present invention, if the scheduling carrier wave of the SCell of random access is SCell-1, RA-RNTI masked PDCCH transmits on SCell-1, and UE only need monitor this PDCCH in SCell-1 with in dedicated search space corresponding to RA SCell.
Embodiment five
The embodiment of the present invention five provides the method for non-competing random access on a kind of auxiliary community, be assumed to be UE and configured 1 PCell and 1 SCell, the transfer of data on SCell is to dispatch by the PDCCH on PCell, successful after random access retransmits, as shown in Figure 7, the method comprises the following steps:
Step 701, eNB sends PDCCH order on PCell, and notice UE initiates non-competing random access on SCell.
Step 702, UE sends dedicated preamble on SCell.
Step 703, UE monitors on PCell and PDCCH corresponding to this SCell in RAR window, RA-RNTI information do not detected.
Step 704, UE carries out Preamble re-transmission on SCell.
Step 705, eNB receives dedicated preamble on SCell, and identifies this UE.
Step 706, in the eNB dedicated search space that this SCell is corresponding on the PCell of this UE, sends to UE by the PDCCH of RA-RNTI scrambling, and corresponding Msg2 DL-SCH data are transmitted in the corresponding position of SCell simultaneously simultaneously.
Step 707, UE, according to the resource of the PDCCH instruction of the RA-RNTI scrambling on PCell, carries out DL-SCH data processing at SCell correspondence position.
In the embodiment of the present invention, if determine the preamble information that comprises UE transmission in the RAR message of carrying, think random and access successfully, and apply the TA value of this RAR message, restart TATimer simultaneously.
Step 708, UE, according to UL Grant information corresponding in RAR message, initiates UE dedicated uplink transfer of data on SCell.
In the embodiment of the present invention, be SCell-1 if access at random the scheduling carrier wave of SCell, RA-RNTI masked PDCCH transmits on SCell-1, in the dedicated search space that UE only need monitor in SCell-1 and RA SCell is corresponding, monitors this PDCCH.
Embodiment six
The embodiment of the present invention six provides the method for non-competing random access on a kind of auxiliary community, be assumed to be UE and configured 1 PCell and 1 SCell, the transfer of data on SCell is to dispatch by the PDCCH on PCell, accesses successfully at random, as shown in Figure 8, the method comprises the following steps:
Step 801, eNB sends PDCCH order on PCell, and notice UE initiates non-competing random access on SCell.
Step 802, UE sends dedicated preamble on SCell.
Step 803, eNB receives dedicated preamble on SCell, and identifies this UE.
Step 804, UE obtains the SCell TA information of 11bit in the data of the UE private downlink transmission of eNB scheduling, think random and access successfully, and it is upper that the TA information of this 11bit is directly applied in to SCell, starts TATimer.
Embodiment seven
The embodiment of the present invention seven provides the method for non-competing random access on a kind of auxiliary community, be assumed to be UE and configured 1 PCell and 1 SCell, the transfer of data on SCell is to dispatch by the PDCCH on PCell, random access failure, as shown in Figure 9, the method comprises the following steps:
Step 901, eNB sends PDCCH order on PCell, and notice UE initiates non-competing random access on SCell.
Step 902, UE sends dedicated preamble on SCell.
Step 903, UE does not find the 11bit TA command(order under this SCell in window).Wherein, this window can be RAR window, can be also the window of the new configuration of RRC.
Step 904, UE carries out Preamble re-transmission on SCell.
Step 905, UE does not find the 11bit TA command under this SCell in window.
Step 906, Preamble transmission reaches maximum number of times of transmission, and UE determines random access procedure failure.
Step 907, UE is by RRC or the relevant random access failure(failure of MAC message informing eNB) situation; Follow-up eNB behavior can be to delete the up-link carrier of this SCell etc.
Embodiment eight
The present embodiment is elaborated to the SCell TA value information of 11bit, and the SCell TA value information of this 11bit can comprise various ways, for example:
(1) the MAC CE of the TAC MAC CE information of introducing 11bit.In MAC subheader, use current reserved(to reserve) LCID(Logical Channel ID, Logic Channel Identifier) for identifying long TAC MAC CE, concrete MAC CE form as shown in figure 10, wherein TAG is the SCell that current SCell(sends preamble) under the index numbering of TAGroup, can be 2 bits, also can use 2 R bits above, TAG territory size can be 1-4bit, is reservation bit if any residue.
(2) introduce new TAC MAC CE, the TA information that can carry 6bit and 11bit simultaneously.Can in MAC subheader, use current reserved LCID for identifying new TAC MAC CE, it is new or original also can not introducing new LCID but configure TAC MAC CE by the demonstration of RRC signaling.As shown in figure 11, wherein T bit is used to indicate the TA MAC CE of 6bit or 11bit to concrete MAC CE form; TAG is the index numbering of TAGroup under current SCell, can be 2 bits, also can use R bit and TAG bit simultaneously.
In the embodiment of the present invention, if T=1 is the TA MAC CE of 11 bits, form as shown in figure 12.If T=0 is the TA MAC CE of 6 bits, form as shown in figure 13.
At above-mentioned Figure 10 in Figure 13, the change in location of TAG, R, T bit, the bit length of TAG also can increase according to the actual requirements or shorten.
(3) if TAC MAC CE be all TA Group together, above two kinds of modes all can be used as the expression way of the TA information of each TAG in TAC MAC CE, for example:
Expression way as shown in figure 14, because this message-length is variable, adopts the variable MAC subheader that contains L territory, and introduces new LCID for identifying this new MAC CE form.Wherein first byte TAG Bitmap is for identifying the TA information that this MAC CE comprises several TAGroup, wherein be designated as 1 the TA specifying information that increases in the back this TAG, the TA specifying information form of each TAG adopts the 2nd kind of expression way, be the TA information that T=1 identifies 11 bits, T=0 is designated the TA information of 6 bits.
Expression way as shown in figure 15, because this message-length is variable, adopts the variable MAC subheader that contains L territory, and introduces new LCID for identifying this new MAC CE form.Wherein first byte TAG Bitmap is for identifying the TA information that this MAC CE comprises several TAGroup, wherein be designated as 1 the TA specifying information that increases in the back this TAG, the TA specifying information form of each TAG adopts the 1st kind of expression way, be the TA information that T=1 identifies 11 bits, the i.e. form of two bytes, T=0 is designated the TA information of 6 bits, the i.e. form of a byte.
In Figure 13, wherein the field of invalid can be regarded R bit, and reserve field is used.
In Figure 14, TA Command is 11bit or 6bit length specifically, judges according to T bit value.
Embodiment nine
In the embodiment of the present invention, for actual situation, network side can send by the search volume of UEFei Fu community public search space the schedule information of carrying TA value information to UE, and UE monitors the schedule information of carrying TA value information in the search volume of self Fei Fu community public search space.It should be noted that the search volume of Gai Feifu community public search space at least comprises the public search space of the dedicated search space of UE and the main plot of UE; The technical scheme that above-described embodiment one to embodiment eight is for the dedicated search space of UE, the public search space for the main plot of UE in the present embodiment is described in detail.
The embodiment of the present invention nine provides the method for non-competing random access on a kind of auxiliary community, comprising:
Step 1, network side (as eNB) notice are initiated non-competing random access on UEFu community.For example, eNB is by PDCCH order(order) or the message informing UE such as RRC initiate non-competing random access procedure at SCell.
Step 2, UE receive from the notice of initiating non-competing random access on network side Fu community.
On step 3, UEFu community, initiate non-competing random access, Bing Fu sends dedicated preamble on community.
Step 4, network side receive the dedicated preamble from UE.Wherein, in the time receiving dedicated preamble in PRACH resource corresponding to network side UEFu community, identifying dedicated preamble by dedicated preamble is that this UE sends.
Step 5, network side send the schedule information of carrying TA value information by the public search space of the main plot of UE to UE.
Step 6, UE monitor the schedule information of carrying TA value information in the public search space of the main plot of self.
For the processing procedure of step 5 and step 6, can specifically be handled as follows:
Network side sends the schedule information of carrying TA value information by the public search space of the main plot of UE to UE, comprising: network side transmits PDCCH on the public search space of the main plot of UE, and transmit corresponding accidental access response message on the main plot of UE.Further, network side transmits corresponding accidental access response message on the main plot of UE, comprise: the accidental access response of identical RA-RNTI's and accidental access response the corresponding identical subframe of transmission of correspondence that network side need to send on same community is packaged in the MAC PDU(protocol Data Unit of an accidental access response message) in, and on the main plot of UE the accidental access response message after transmission packing.
UE monitors the schedule information of carrying TA value information in the public search space of the main plot of self, comprising: the preamble that UE detects auxiliary community by the public search space of main plot transmits corresponding accidental access response message and TA value information.Further, UE is according to the PRACH Resource Calculation RA-RNTI that sends preamble use, in the public search space of main plot, monitor the PDCCH that RA-RNTI is corresponding, and the downlink resource on the resource Wei Zhe community of PDCCH instruction, and resolve and process according to the form that strengthens accidental access response message.
Further, in the time carrying the cell number of preamble transmission community in the MAC of accidental access response message PDU, UE judges whether random access procedure success according to this cell number and preamble ID.Wherein, in the MAC PDU of accidental access response message, carry preamble and send the cell number of community and be: access at random cell number, system-level numbering or UE rank numbering, and configure to UE's for or broadcast special by RRC.
In the embodiment of the present invention, in the MAC PDU of accidental access response message, carry the cell number of preamble transmission community, comprise: in increasing random access cell number or utilize current format in the form of each accidental access response message, all or part of field of Temporary C-RNTI is for identifying random access cell number, or, increase random access cell number in the MAC head part of the whole MAC PDU of accidental access response message; Wherein, new and old form identifies by the reserved field in MAC PDU or in RAR.In addition,, if do not receive the accidental access response of RA-RNTI and preamble ID and cell number coupling in accidental access response window, preamble retransmission process is carried out in UEFu community; The accidental access response window that UE uses adopts the configuration value of main plot, or the configuration value of the affiliated auxiliary community of preamble transmission, or requires the parameter value of He Fu community, main plot to equate.Afterwards, still there is no success if dedicated preamble transmission reaches maximum times random access procedure, UE stops random access procedure, and/or failed to network side notice random access procedure by RRC or MAC message.
In the embodiment of the present invention, the behavior of eNB comprises: eNB receives after the dedicated preamble of UE on the SCell of UE, can confirm UE according to preamble, and corresponding accidental access response message is placed on to the upper transmission of PCell of UE, wherein PDCCH is in the transmission of the PCell of UE public search space, and corresponding PDSCH transfer of data (being accidental access response message) is transmitted on PCell.
It should be noted that eNB can be packaged in the accidental access response that need to send on same Cell in the MAC PDU of an accidental access response message, the preamble that the accidental access response wherein comprising can corresponding different districts.For example, as shown in figure 16, eNB respectively on Cell-1,2,3 identical PRACH position receive preamble, (be that RA-RNTI is identical, and transmit at same time point), corresponding Msg2 transmission location is all Cell-1; Now UE is packaged in the RAR message of these UE together and transmits as a RAR MAC PDU on Cell-1, and the PDCCH of employing is this RA-RNTI.
Further, in the MAC PDU carrying in the RAR MAC PDU of packing, in the form of RAR, increase the instruction to cell under concrete preamble ID, corresponding mode includes but not limited to: (1) adopts the expression way that adds RA Cell index in current RAR form, for example,, by interim current Temporary() C-RNTI field is multiplexed with RA Cell Index; (2) in UL Grant or RAR, new field illustrates concrete RA Cell information.Wherein, the cell index information comprising is by RRC signal deployment, and is UE rank or cell level.
In the embodiment of the present invention, when the RAR message of UE is packaged in together, packing manner comprises:
(1) RAR length does not change, and such RAR packing, together with can being packaged in the RAR of R8/9; But form is distinguished by the R field in RAR and is distinguished, and when R=1, resolves according to mode shown in Figure 17, and R=0 resolves according to existing mode.Under which, UE is basic identical to the resolving of whole RAR MAC PDU, find the position of corresponding RAR according to the RAPID of MAC head part in MAC PDU, and whether be new RAR form according to the R bit decision in RAR wherein, if new RAR form, determines whether that according to cell number wherein oneself sends preamble affiliated subdistrict; If it is own affiliated that coupling illustrates this RAR, otherwise continues to search the RAPID of follow-up coupling in this MAC PDU and follow-up cell number, carry out RAR coupling according to cell number and RAPID.
(2) RAR length changes, and for ensureing and the compatibility of the UE of R8, such extended RAR is packaged in together separately, and the common RAR of R8/9 packs and makes a distinction.As shown in figure 18, differentiation can be distinguished by R bit in the head of the BI in MAC HEADER.If extended RAR MAC is PDU, this MAC PDU header part can comprise BI information, and carries out the differentiation of RAR MAC PDU type according to the R bit in BI information.UE, in the time reading this MAC PDU, if do not find BI field in MAC PDU Header part, resolves according to existing RAR MAC PDU form; If find BI field (being set to 0) in MAC PDU Header part, the indication bit that is wherein used to indicate new and old MAC PDU is not designated as format, resolves according to existing RAR MAC PDU form; If otherwise find BI field in MAC PDU Header part, the indication bit that is wherein used to indicate new and old MAC PDU is designated as format (being set to 1), resolve according to new RAR MAC PDU form, wherein the content of each RAR part is resolved according to the new RAR form in Figure 18, and carries out the judgement of RAR according to RAPID and cell number.For R8 UE, there is illegal reserved field value if find in the BI field in RAR MAC PDU, abandon this RAR MAC PDU and do not resolve;
(3) current RAR form and new RAR form are packaged in same MAC PDU.Be that UE is in the time receiving this MAC PDU, can resolve according to the R bit in each RAR in MAC PDU, and carry out the new and old differentiation of RAR form according to R bit, thus judgement is to carry out RAR coupling according to RAPID, or mate according to RAPID and cell number;
(4) current RAR form and new RAR form are packaged in same MAC PDU, wherein the content of existing RAR form are all placed on to the foremost of MAC PDU, newly putting behind of RAR form.Be that UE is in the time receiving this MAC PDU, can resolve according to the R bit in each RAR in MAC PDU, and carry out the new and old differentiation of RAR form according to R bit, thus judgement is to carry out RAR coupling according to RAPID, or mate according to RAPID and cell number; For R8 UE, when being resolved to, in RAR, to have R bit be unreserved value, abandons this MAC PDU.
In the embodiment of the present invention, the behavior of UE side comprises: UE sends after preamble on SCell, the RA-RNTI drawing according to corresponding PRACH Resource Calculation, in the public search space of PCell, monitor the PDCCH that this RA-RNTI is corresponding, and the resource of this PDCCH instruction is the downlink resource on this cell; Further, UE receives the RAR MAC PDU of this community according to PDCCH, and resolves according to the form of RAR MAC PDU; Resolving for RAR variation and indeclinable two kinds of modes is as follows respectively:
(1) if RAR length does not change, consistent with current RAR length: UE mates according to the cell index information in the RAR field of the RAPID information in the subheader in RAR MAC PDU and correspondence, illustrates and accesses successfully at random if the match is successful.
(2) if RAR length variations, extended RAR is separately in the situation of packing: whether UE distinguishes this MAC PDU according to the specific fields of RAR MAC PDU and adopt extended RAR to resolve, if this RAR MAC PDU is not resolved; In the time resolving, each RAR all adopts extended RAR to resolve, and mates according to the cell index in RAPID and concrete RAR.
In addition, when UE receives RAR corresponding to SCell on PCell, corresponding RAR window can adopt the RAR configuration of PCell, also can adopt the RAR window configuration of SCell, or to require both configurations be must be identical.
Embodiment ten
Based on the inventive concept same with said method, a kind of network equipment is also provided in the embodiment of the present invention, as shown in figure 19, this network equipment comprises:
The first sending module 11, for initiating non-competing random access on notifying user equipment Fu community;
Receiver module 12, for receiving the Special leader preamble from described subscriber equipment;
The second sending module 13, sends the schedule information of carrying timing advance TA value information for the search volume by described subscriber equipment Fei Fu community public search space to described subscriber equipment.
Described receiver module 12, specifically for when receive described dedicated preamble in Physical Random Access Channel PRACH resource corresponding to described auxiliary community time, identifying described dedicated preamble by described dedicated preamble is that described subscriber equipment sends.
Described the second sending module, sends the schedule information of carrying TA value information to described subscriber equipment specifically for the dedicated search space by described subscriber equipment; Or the public search space of the main plot by described subscriber equipment sends the schedule information of carrying TA value information to described subscriber equipment.
Described the second sending module 13, in the dedicated search space corresponding with described auxiliary community at scheduling carrier wave corresponding to described auxiliary community, send the physical downlink control channel PDCCH of the random Radio Network Temporary Identifier RA-RNTI scrambling corresponding with described dedicated preamble transfer resource to described subscriber equipment; The PDCCH of RA-RNTI scrambling adopts descending control information format DCI format 1A.
Described the second sending module 13, is further used for notifying the described subscriber equipment downlink resource that the Physical Downlink Shared Channel PDSCH that transmission bearer accidental access response message uses on described auxiliary community distributes by the PDCCH of described RA-RNTI scrambling.
Described the second sending module 13, specifically for carrying the TA value information in the TA Group under described auxiliary community in the downlink dedicated data that send to described subscriber equipment.
The TA value information that described TA value information is 11bit, and the expression way of the TA value information of described 11bit is the Timing Advance order medium access control unit TAC MAC CE information that comprises 11bit, and LCID distinguishes by reservation logic channel logo, and/or by radio resource control RRC signal deployment.
Described the second sending module 13, transmits PDCCH on the public search space specifically for the main plot at described subscriber equipment, transmits corresponding accidental access response message on the main plot of described subscriber equipment.Described the second sending module 13, the accidental access response that is further used for identical RA-RNTI's and accidental access response the corresponding identical subframe of transmission of the correspondence that need to send on same community is packaged in the MAC protocol Data Unit PDU of an accidental access response message, and on the main plot of described subscriber equipment, transmits the accidental access response message after described packing.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into multiple submodules.
Embodiment 11
Based on the inventive concept same with said method, a kind of subscriber equipment is also provided in the embodiment of the present invention, as shown in figure 20, this subscriber equipment comprises:
Receiver module 21, for receiving from the notice of initiating non-competing random access on network side Fu community;
Sending module 22 for initiate non-competing random access on described auxiliary community, and sends dedicated preamble on described auxiliary community;
Processing module 23, for monitoring the schedule information of carrying TA value information in the search volume of Fei Fu community public search space.
Described processing module 23, specifically for monitoring the schedule information of carrying TA value information in the dedicated search space of self; Or, in the public search space of main plot of self, monitor the schedule information of carrying TA value information.
Described processing module 23, in the dedicated search space corresponding with described auxiliary community at scheduling carrier wave corresponding to described auxiliary community, monitors the PDCCH of RA-RNTI scrambling.Wherein, RA-RNTI is that the PRACH resource using according to transmission preamble obtains; The PDCCH of described RA-RNTI scrambling adopts DCI format 1A.
Described processing module 23, the resource that is further used for indicating in the PDCCH by described RA-RNTI scrambling receives PDSCH channel data on described auxiliary community, and resolves and process according to the form of accidental access response message.
Described processing module 23, if also, for the PDCCH of described RA-RNTI scrambling not detected at accidental access response RAR window or dedicated preamble message not detected in corresponding accidental access response message, carry out dedicated preamble retransmission process on described auxiliary community; If dedicated preamble transmission reaches the still not success of maximum times random access procedure, stop random access procedure, and/or notify random access procedure failure by RRC or MAC message to network side.
Described processing module 23, specifically for obtaining the TA value information in the TA Group under described auxiliary community from the downlink dedicated data from described network side.
The TA value information that described TA value information is 11bit, and the expression way of the TA value information of described 11bit is the Timing Advance order medium access control unit TAC MAC CE information that comprises 11bit, and LCID distinguishes by reservation logic channel logo, and/or by radio resource control RRC signal deployment; When receiving after the TAC MAC CE of 11bit, this TA value is used for adjusting the up transmitting time point of this TA Group as absolute lead, and/or restarts the TATimer of the TA Group under described auxiliary community.
Described processing module 23, if also for do not receive the TA value information in the TA Group under described auxiliary community in specified window, carry out dedicated preamble retransmission process on described auxiliary community; If dedicated preamble transmission reaches the still not success of maximum times random access procedure, stop random access procedure, and/or send random access procedure failure to network side.
Described processing module 23, transmits corresponding accidental access response message and TA value information specifically for the preamble that detects auxiliary community by the public search space of described main plot.
Described processing module 23, be further used for the PRACH Resource Calculation RA-RNTI using according to sending preamble, and in the public search space of described main plot, monitor the PDCCH that described RA-RNTI is corresponding, and the downlink resource on the resource Wei Zhe community of described PDCCH instruction, and resolve and process according to the form that strengthens accidental access response message.
Described processing module 23, specifically in the time carrying the cell number of preamble transmission community in the MAC of accidental access response message PDU, judges whether random access procedure success according to this cell number and preamble ID; Wherein, the cell number of carrying preamble transmission community in the MAC PDU of accidental access response message is: access at random cell number, and system-level numbering or UE rank numbering, and for special by RRC or broadcast configuration;
In increasing random access cell number or utilize current format in the form of each accidental access response message, all or part of field of Temporary C-RNTI is for identifying random access cell number, or, increase random access cell number in the MAC head part of the whole MAC PDU of accidental access response message; Wherein, form identifies by the reserved field in MAC PDU or in RAR.
Described processing module 23, if specifically for do not receive the accidental access response of RA-RNTI and preamble ID and cell number coupling in accidental access response window, carry out preamble retransmission process in described auxiliary community; If dedicated preamble transmission reaches the still not success of maximum times random access procedure, stop random access procedure, and/or notify random access procedure failure by RRC or MAC message to network side; Wherein, the accidental access response window of use adopts the configuration value of main plot, or the configuration value of the affiliated auxiliary community of preamble transmission, or requires the parameter value of He Fu community, main plot to equate.
Wherein, the modules of apparatus of the present invention can be integrated in one, and also can separate deployment.Above-mentioned module can be merged into a module, also can further split into multiple submodules.
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.Based on such understanding, 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 is stored in a storage medium, comprise that some instructions (can be personal computers in order to make a computer equipment, server, or the network equipment etc.) carry out the method described in each embodiment of the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device in embodiment can be distributed in the device of embodiment according to embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from the present embodiment.The module of above-described embodiment can be merged into a module, also can further split into multiple submodules.
The invention described above embodiment sequence number, just to describing, does not represent the quality of embodiment.
Disclosed is above only several specific embodiment of the present invention, and still, the present invention is not limited thereto, and the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.

Claims (46)

  1. On 1.Yi Zhongfu community, the method for non-competing random access, is characterized in that, comprising:
    On network side notifying user equipment Fu community, initiate non-competing random access;
    Described network side receives the Special leader preamble from described subscriber equipment;
    Described network side sends the schedule information of carrying timing advance TA value information by the search volume of described subscriber equipment Fei Fu community public search space to described subscriber equipment; Wherein, described network side sends the schedule information of carrying timing advance TA value information by the search volume of described subscriber equipment Fei Fu community public search space to described subscriber equipment, comprising: described network side sends the schedule information of carrying TA value information by the dedicated search space of described subscriber equipment to described subscriber equipment; Or described network side sends the schedule information of carrying TA value information by the public search space of the main plot of described subscriber equipment to described subscriber equipment.
  2. 2. the method for claim 1, is characterized in that, described network side receives the Special leader preamble from described subscriber equipment, comprising:
    In the time that described network side receives described dedicated preamble in Physical Random Access Channel PRACH resource corresponding to described auxiliary community, identifying described dedicated preamble by described dedicated preamble is that described subscriber equipment sends.
  3. 3. the method for claim 1, is characterized in that, described network side sends the schedule information of carrying TA value information by the dedicated search space of described subscriber equipment to described subscriber equipment, comprising:
    In the described network side dedicated search space corresponding with described auxiliary community at scheduling carrier wave corresponding to described auxiliary community, send the physical downlink control channel PDCCH of the random Radio Network Temporary Identifier RA-RNTI scrambling corresponding with described dedicated preamble transfer resource to described subscriber equipment.
  4. 4. method as claimed in claim 3, is characterized in that, the PDCCH of described RA-RNTI scrambling adopts descending control information format DCI format1A.
  5. 5. method as claimed in claim 3, is characterized in that, described method further comprises:
    Described network side is notified the described subscriber equipment downlink resource that the Physical Downlink Shared Channel PDSCH that transmission bearer accidental access response message uses on described auxiliary community distributes by the PDCCH of described RA-RNTI scrambling.
  6. 6. the method for claim 1, is characterized in that, described network side sends the schedule information of carrying TA value information by the dedicated search space of described subscriber equipment to described subscriber equipment, comprising:
    Described network side carries the TA value information in the TA Group under described auxiliary community in the downlink dedicated data that send to described subscriber equipment.
  7. 7. method as claimed in claim 6, it is characterized in that, the TA value information that described TA value information is 11bit, and the expression way of the TA value information of described 11bit is the Timing Advance order medium access control unit TAC MAC CE information that comprises 11bit, and LCID distinguishes by reservation logic channel logo, and/or by radio resource control RRC signal deployment.
  8. 8. the method for claim 1, is characterized in that, described network side sends the schedule information of carrying TA value information by the public search space of the main plot of described subscriber equipment to described subscriber equipment, comprising:
    Described network side transmits PDCCH on the public search space of the main plot of described subscriber equipment, and transmits corresponding accidental access response message on the main plot of described subscriber equipment.
  9. 9. method as claimed in claim 8, is characterized in that, described network side transmits corresponding accidental access response message on the main plot of described subscriber equipment, comprising:
    The accidental access response of identical RA-RNTI's and accidental access response the corresponding identical subframe of transmission of correspondence that described network side need to send on same community is packaged in the Medium Access Control (MAC) Protocol Data Unit PDU of an accidental access response message, and on the main plot of described subscriber equipment, transmits the accidental access response message after described packing.
  10. On 10.Yi Zhongfu community, the method for non-competing random access, is characterized in that, comprising:
    Subscriber equipment receives from the notice of initiating non-competing random access on network side Fu community;
    Described subscriber equipment is initiated non-competing random access on described auxiliary community, and sends dedicated preamble on described auxiliary community;
    Described subscriber equipment is monitored the schedule information of carrying TA value information in the search volume of self Fei Fu community public search space; Wherein, described subscriber equipment is monitored the schedule information of carrying TA value information in the search volume of self Fei Fu community public search space, comprising: described subscriber equipment is monitored the schedule information of carrying TA value information in the dedicated search space of self; Or described subscriber equipment is monitored the schedule information of carrying TA value information in the public search space of the main plot of self.
  11. 11. methods as claimed in claim 10, is characterized in that, described subscriber equipment is monitored the schedule information of carrying TA value information in the dedicated search space of self, comprising:
    In the described subscriber equipment dedicated search space corresponding with described auxiliary community at scheduling carrier wave corresponding to described auxiliary community, monitor the PDCCH of RA-RNTI scrambling, wherein RA-RNTI obtains according to sending the PRACH resource that preamble uses.
  12. 12. methods as claimed in claim 11, is characterized in that, the PDCCH of described RA-RNTI scrambling adopts DCI format1A.
  13. 13. methods as claimed in claim 11, is characterized in that, described method further comprises:
    The resource of indicating in the PDCCH of described subscriber equipment by described RA-RNTI scrambling receives PDSCH channel data on described auxiliary community, and resolves and process according to the form of accidental access response message.
  14. 14. methods as claimed in claim 11, is characterized in that, described method also comprises:
    If described subscriber equipment the PDCCH of described RA-RNTI scrambling do not detected in accidental access response RAR window or dedicated preamble message do not detected in corresponding accidental access response message, described subscriber equipment carries out dedicated preamble retransmission process on described auxiliary community.
  15. 15. methods as claimed in claim 14, is characterized in that, described method further comprises:
    Still there is no success if dedicated preamble transmission reaches maximum times random access procedure, described subscriber equipment stops random access procedure, and/or failed to network side notice random access procedure by RRC or MAC message.
  16. 16. methods as claimed in claim 10, is characterized in that, described subscriber equipment is monitored the schedule information of carrying TA value information in the dedicated search space of self, comprising:
    Described subscriber equipment obtains the TA value information in the TA Group under described auxiliary community from the downlink dedicated data from described network side.
  17. 17. methods as claimed in claim 16, it is characterized in that, the TA value information that described TA value information is 11bit, and the expression way of the TA value information of described 11bit is the Timing Advance order medium access control unit TAC MAC CE information that comprises 11bit, and LCID distinguishes by reservation logic channel logo, and/or by radio resource control RRC signal deployment;
    When described subscriber equipment is received after the TAC MAC CE of 11bit, this TA value is used for adjusting the up transmitting time point of this TA Group as absolute lead, and/or restarts the TATimer of the TA Group under described auxiliary community.
  18. 18. methods as claimed in claim 16, is characterized in that, described method also comprises:
    If described subscriber equipment does not receive the TA value information in the TA Group under described auxiliary community in specified window, described subscriber equipment carries out dedicated preamble retransmission process on described auxiliary community.
  19. 19. methods as claimed in claim 18, is characterized in that, described method further comprises:
    If dedicated preamble transmission reaches the still not success of maximum times random access procedure, described subscriber equipment stops random access procedure, and/or sends random access procedure failure to network side.
  20. 20. methods as claimed in claim 10, is characterized in that, described subscriber equipment is monitored the schedule information of carrying TA value information in the public search space of the main plot of self, comprising:
    The preamble that described subscriber equipment detects auxiliary community by the public search space of described main plot transmits corresponding accidental access response message and TA value information.
  21. 21. methods as claimed in claim 20, is characterized in that, described method further comprises:
    Described subscriber equipment is according to the PRACH Resource Calculation RA-RNTI that sends preamble use, in the public search space of described main plot, monitor the PDCCH that described RA-RNTI is corresponding, and the downlink resource on the resource Wei Zhe community of described PDCCH instruction, and resolve and process according to the form that strengthens accidental access response message.
  22. 22. methods as claimed in claim 21, it is characterized in that, described subscriber equipment is resolved and is processed according to the form that strengthens accidental access response message, comprise: in the time carrying the cell number of preamble transmission community in the MAC of accidental access response message PDU, described subscriber equipment judges whether random access procedure success according to this cell number and preamble ID.
  23. 23. methods as claimed in claim 22, it is characterized in that, the cell number of carrying preamble transmission community in the MAC PDU of accidental access response message is: access at random cell number, system-level numbering or UE rank numbering, and configure to subscriber equipment for or broadcast special by RRC.
  24. 24. methods as claimed in claim 22, is characterized in that, carry the cell number of preamble transmission community in the MAC PDU of accidental access response message, comprising:
    In the form of each accidental access response message, increase all or part of field of Temporary C-RNTI in accessing at random cell number or utilizing current format for identifying random access cell number, or,
    Increase random access cell number in the MAC head part of the whole MAC PDU of accidental access response message; Wherein, form identifies by the reserved field in MAC PDU or in RAR.
  25. 25. methods as claimed in claim 22, is characterized in that, described method further comprises:
    If do not receive the accidental access response of RA-RNTI and preamble ID and cell number coupling in accidental access response window, described subscriber equipment carries out preamble retransmission process in described auxiliary community.
  26. 26. methods as claimed in claim 25, is characterized in that, described method further comprises:
    The accidental access response window that described subscriber equipment uses adopts the configuration value of main plot, or the configuration value of the affiliated auxiliary community of preamble transmission, or requires the parameter value of He Fu community, main plot to equate.
  27. 27. methods as claimed in claim 22, is characterized in that, described method further comprises:
    Still there is no success if dedicated preamble transmission reaches maximum times random access procedure, described subscriber equipment stops random access procedure, and/or failed to network side notice random access procedure by RRC or MAC message.
  28. 28. 1 kinds of network equipments, is characterized in that, comprising:
    The first sending module, for initiating non-competing random access on notifying user equipment Fu community;
    Receiver module, for receiving the Special leader preamble from described subscriber equipment;
    The second sending module, sends the schedule information of carrying timing advance TA value information for the search volume by described subscriber equipment Fei Fu community public search space to described subscriber equipment; Send the schedule information of carrying TA value information to described subscriber equipment specifically for the dedicated search space by described subscriber equipment; Or the public search space of the main plot by described subscriber equipment sends the schedule information of carrying TA value information to described subscriber equipment.
  29. 29. network equipments as claimed in claim 28, is characterized in that,
    Described receiver module, specifically for when receive described dedicated preamble in Physical Random Access Channel PRACH resource corresponding to described auxiliary community time, identifying described dedicated preamble by described dedicated preamble is that described subscriber equipment sends.
  30. 30. network equipments as claimed in claim 28, is characterized in that,
    Described the second sending module, in the dedicated search space corresponding with described auxiliary community at scheduling carrier wave corresponding to described auxiliary community, send the physical downlink control channel PDCCH of the random Radio Network Temporary Identifier RA-RNTI scrambling corresponding with described dedicated preamble transfer resource to described subscriber equipment;
    The PDCCH of described RA-RNTI scrambling adopts descending control information format DCI format1A.
  31. 31. network equipments as claimed in claim 30, is characterized in that,
    Described the second sending module, is further used for notifying the described subscriber equipment downlink resource that the Physical Downlink Shared Channel PDSCH that transmission bearer accidental access response message uses on described auxiliary community distributes by the PDCCH of described RA-RNTI scrambling.
  32. 32. network equipments as claimed in claim 28, is characterized in that,
    Described the second sending module, specifically for carrying the TA value information in the TA Group under described auxiliary community in the downlink dedicated data that send to described subscriber equipment.
  33. 33. network equipments as claimed in claim 32, it is characterized in that, the TA value information that described TA value information is 11bit, and the expression way of the TA value information of described 11bit is the Timing Advance order medium access control unit TAC MAC CE information that comprises 11bit, and LCID distinguishes by reservation logic channel logo, and/or by radio resource control RRC signal deployment.
  34. 34. network equipments as claimed in claim 28, is characterized in that,
    Described the second sending module, transmits PDCCH on the public search space specifically for the main plot at described subscriber equipment, transmits corresponding accidental access response message on the main plot of described subscriber equipment.
  35. 35. network equipments as claimed in claim 34, is characterized in that,
    Described the second sending module, the accidental access response that is further used for identical RA-RNTI's and accidental access response the corresponding identical subframe of transmission of the correspondence that need to send on same community is packaged in the Medium Access Control (MAC) Protocol Data Unit PDU of an accidental access response message, and on the main plot of described subscriber equipment, transmits the accidental access response message after described packing.
  36. 36. 1 kinds of subscriber equipmenies, is characterized in that, comprising:
    Receiver module, for receiving from the notice of initiating non-competing random access on network side Fu community;
    Sending module for initiate non-competing random access on described auxiliary community, and sends dedicated preamble on described auxiliary community;
    Processing module, for monitoring the schedule information of carrying TA value information in the search volume of Fei Fu community public search space; Specifically for monitor the schedule information of carrying TA value information in the dedicated search space of self; Or, in the public search space of main plot of self, monitor the schedule information of carrying TA value information.
  37. 37. subscriber equipmenies as claimed in claim 36, is characterized in that,
    Described processing module, in the dedicated search space corresponding with described auxiliary community at scheduling carrier wave corresponding to described auxiliary community, monitors the PDCCH of RA-RNTI scrambling; Wherein, RA-RNTI is that the PRACH resource using according to transmission preamble obtains; The PDCCH of described RA-RNTI scrambling adopts DCI format1A.
  38. 38. subscriber equipmenies as claimed in claim 37, is characterized in that,
    Described processing module, the resource that is further used for indicating in the PDCCH by described RA-RNTI scrambling receives PDSCH channel data on described auxiliary community, and resolves and process according to the form of accidental access response message.
  39. 39. subscriber equipmenies as claimed in claim 37, is characterized in that,
    Described processing module, if also, for the PDCCH of described RA-RNTI scrambling not detected at accidental access response RAR window or dedicated preamble message not detected in corresponding accidental access response message, carry out dedicated preamble retransmission process on described auxiliary community; If dedicated preamble transmission reaches the still not success of maximum times random access procedure, stop random access procedure, and/or notify random access procedure failure by RRC or MAC message to network side.
  40. 40. subscriber equipmenies as claimed in claim 36, is characterized in that,
    Described processing module, specifically for obtaining the TA value information in the TA Group under described auxiliary community from the downlink dedicated data from described network side.
  41. 41. subscriber equipmenies as claimed in claim 40, it is characterized in that, the TA value information that described TA value information is 11bit, and the expression way of the TA value information of described 11bit is the Timing Advance order medium access control unit TAC MAC CE information that comprises 11bit, and LCID distinguishes by reservation logic channel logo, and/or by radio resource control RRC signal deployment;
    When receiving after the TAC MAC CE of 11bit, this TA value is used for adjusting the up transmitting time point of this TA Group as absolute lead, and/or restarts the TATimer of the TA Group under described auxiliary community.
  42. 42. subscriber equipmenies as claimed in claim 40, is characterized in that,
    Described processing module, if also for do not receive the TA value information in the TA Group under described auxiliary community in specified window, carry out dedicated preamble retransmission process on described auxiliary community; If dedicated preamble transmission reaches the still not success of maximum times random access procedure, stop random access procedure, and/or send random access procedure failure to network side.
  43. 43. subscriber equipmenies as claimed in claim 36, is characterized in that,
    Described processing module, transmits corresponding accidental access response message and TA value information specifically for the preamble that detects auxiliary community by the public search space of described main plot.
  44. 44. subscriber equipmenies as claimed in claim 43, is characterized in that,
    Described processing module, be further used for the PRACH Resource Calculation RA-RNTI using according to sending preamble, and in the public search space of described main plot, monitor the PDCCH that described RA-RNTI is corresponding, and the downlink resource on the resource Wei Zhe community of described PDCCH instruction, and resolve and process according to the form that strengthens accidental access response message.
  45. 45. subscriber equipmenies as claimed in claim 44, is characterized in that,
    Described processing module, specifically in the time carrying the cell number of preamble transmission community in the MAC of accidental access response message PDU, judges whether random access procedure success according to this cell number and preamble ID; Wherein, the cell number of carrying preamble transmission community in the MAC PDU of accidental access response message is: access at random cell number, and system-level numbering or UE rank numbering, and for special by RRC or broadcast configuration;
    In increasing random access cell number or utilize current format in the form of each accidental access response message, all or part of field of Temporary C-RNTI is for identifying random access cell number, or, increase random access cell number in the MAC head part of the whole MAC PDU of accidental access response message; Wherein, form identifies by the reserved field in MAC PDU or in RAR.
  46. 46. subscriber equipmenies as claimed in claim 44, is characterized in that,
    Described processing module, if specifically for do not receive the accidental access response of RA-RNTI and preamble ID and cell number coupling in accidental access response window, carry out preamble retransmission process in described auxiliary community; If dedicated preamble transmission reaches the still not success of maximum times random access procedure, stop random access procedure, and/or notify random access procedure failure by RRC or MAC message to network side; Wherein, the accidental access response window of use adopts the configuration value of main plot, or the configuration value of the affiliated auxiliary community of preamble transmission, or requires the parameter value of He Fu community, main plot to equate.
CN201110225840.4A 2011-07-12 2011-08-08 Non-competitive random access method and equipment on secondary cell (SCell) Active CN102238754B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201110225840.4A CN102238754B (en) 2011-07-12 2011-08-08 Non-competitive random access method and equipment on secondary cell (SCell)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201110194386 2011-07-12
CN201110194386.0 2011-07-12
CN201110225840.4A CN102238754B (en) 2011-07-12 2011-08-08 Non-competitive random access method and equipment on secondary cell (SCell)

Publications (2)

Publication Number Publication Date
CN102238754A CN102238754A (en) 2011-11-09
CN102238754B true CN102238754B (en) 2014-08-20

Family

ID=44888799

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201110225840.4A Active CN102238754B (en) 2011-07-12 2011-08-08 Non-competitive random access method and equipment on secondary cell (SCell)

Country Status (1)

Country Link
CN (1) CN102238754B (en)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102092579B1 (en) 2011-08-22 2020-03-24 삼성전자 주식회사 Method and apparatus for support multiple frequency band in a mobile communication system
AU2013208385A1 (en) 2012-01-09 2014-06-19 Samsung Electronics Co., Ltd. Method and apparatus for logging
KR102048742B1 (en) 2012-01-27 2019-11-26 삼성전자 주식회사 Method and apparatus for efficiently controlling access for system load adjustment in mobile communication systems
CN103228053A (en) * 2012-01-29 2013-07-31 中兴通讯股份有限公司 Random access method of multi-carrier system, base station, as well as mobile terminal and random access system
CN103228026A (en) * 2012-01-29 2013-07-31 中兴通讯股份有限公司 Random access method and terminal in carrier aggregation system as well as base station and system
US9603034B2 (en) 2012-01-30 2017-03-21 Futurewei Technologies, Inc. System and method for common control channels in a communications system
CN102595634B (en) * 2012-01-31 2015-07-15 普天信息技术研究院有限公司 Method for receiving random access response information in carrier aggregation
CN110267355B (en) * 2012-02-06 2022-12-20 三星电子株式会社 Base station and method for supporting random access in mobile communication system
US9414409B2 (en) 2012-02-06 2016-08-09 Samsung Electronics Co., Ltd. Method and apparatus for transmitting/receiving data on multiple carriers in mobile communication system
KR101692127B1 (en) * 2012-03-16 2017-01-02 후지쯔 가부시끼가이샤 Wireless communication system, mobile station and base station
CN109560912A (en) * 2012-03-19 2019-04-02 上海诺基亚贝尔股份有限公司 Random access is from the method for cell and the method for receiving data
WO2014000165A1 (en) * 2012-06-26 2014-01-03 华为技术有限公司 Information transmission method, network node, user equipment and system
CN103843425B (en) * 2012-08-31 2017-12-29 华为技术有限公司 Increase the method and base station, terminal of secondary cell
CN103716897B (en) * 2012-09-29 2018-07-31 南京中兴软件有限责任公司 Information transferring method and device based on carrier wave polymerization
CN104837209A (en) * 2014-02-11 2015-08-12 上海朗帛通信技术有限公司 Random access method for dual connectivity communication and device
ES2727100T3 (en) 2014-05-09 2019-10-14 Huawei Tech Co Ltd User device, base station, access base station and wireless link monitoring procedure
CN106304312B (en) * 2015-05-15 2019-11-29 上海诺基亚贝尔股份有限公司 The method of timing advance order MAC CE is set in the carrier aggregation system of enhancing
CN107302798A (en) * 2016-04-15 2017-10-27 中兴通讯股份有限公司 Accidental access method, apparatus and system, base station and user equipment (UE)
CN107872801B (en) * 2016-09-28 2022-09-30 中兴通讯股份有限公司 Data processing method, device and base station
US10764929B2 (en) 2017-01-26 2020-09-01 Lg Electronics Inc. Method and apparatus for requesting system information
CN110463329B (en) * 2017-03-07 2023-07-21 苹果公司 Monitoring control channels in a set of control resources for a new air interface
CN108738030A (en) * 2017-04-25 2018-11-02 西安电子科技大学 A kind of accidental access method of LTE extra long distances covering
CN109089303B (en) * 2017-06-14 2021-01-08 维沃移动通信有限公司 System information transmission method, terminal and network equipment
CN109392125B (en) * 2017-08-10 2023-04-18 华为技术有限公司 Communication method and apparatus
CN109068392B (en) * 2018-09-27 2022-11-01 京信网络系统股份有限公司 User scheduling method, device and base station
CN112586063A (en) * 2019-01-28 2021-03-30 Oppo广东移动通信有限公司 Measurement control method, terminal equipment and network equipment
CN117377118A (en) * 2022-06-23 2024-01-09 夏普株式会社 Method executed by user equipment and user equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101514841B1 (en) * 2007-08-10 2015-04-23 엘지전자 주식회사 Method for re-attempting a random access effectively

Non-Patent Citations (5)

* Cited by examiner, † Cited by third party
Title
.《3GPP TS 36.300 v10.4.0》.2011,69-72.
3GPP.3rd Generation Partnership Project
3GPP.3rd Generation Partnership Project.《3GPP TS 36.300 v10.4.0》.2011,69-72. *
Media Tek.Transmission of Scell RACH.《3GPP TSG-RAN2 #73bis meeting》.2011,1-3.
Transmission of Scell RACH;Media Tek;《3GPP TSG-RAN2 #73bis meeting》;20110513;1-3 *

Also Published As

Publication number Publication date
CN102238754A (en) 2011-11-09

Similar Documents

Publication Publication Date Title
CN102238754B (en) Non-competitive random access method and equipment on secondary cell (SCell)
US20240073954A1 (en) Power Control For Random Access
US10972989B2 (en) Method, user equipment and base station for transmitting uplink signals
EP3607801B1 (en) Apparatus and method for performing a random access procedure
KR101580951B1 (en) -crossscheduling for random access response
US10462826B2 (en) Random access method and related apparatus
US8705467B2 (en) Cross-carrier preamble responses
US9357536B2 (en) Method and apparatus of controlling cell deactivation in a wireless communication system
CN102123516B (en) Random access method and equipment based on multiple uplink timing advances
EP3281348B1 (en) Method for performing a random access procedure in a carrier aggregation with at least one scell operating in an unlicensed spectrum and a user equipment therefor
CN102291837B (en) Method for processing periodic sounding reference signal (SRS) and equipment
CN102905387B (en) Accidental access method and user equipment
CN117177367A (en) Method, apparatus, computer readable medium for broadband partial handoff
CN102548015A (en) Random access and random access control methods and devices, and random access system
US20210250989A1 (en) Wireless communication method and user equipment for handling random access operations
KR20140005310A (en) Uplink transmission method and device for multi-carrier aggregation system
CN115997466A (en) Method and device for small data transmission
CN103716897B (en) Information transferring method and device based on carrier wave polymerization
WO2013063812A1 (en) Utilization of blind detection resources in carrier aggregation scenarios
CN115088337A (en) Reporting uplink listen-before-talk failure

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CP01 Change in the name or title of a patent holder

Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

CP01 Change in the name or title of a patent holder
TR01 Transfer of patent right

Effective date of registration: 20210604

Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing

Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd.

Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road

Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY

TR01 Transfer of patent right