CN102651907B - Uplink transmission processing method, base station and user equipment - Google Patents

Uplink transmission processing method, base station and user equipment Download PDF

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Publication number
CN102651907B
CN102651907B CN201210134668.6A CN201210134668A CN102651907B CN 102651907 B CN102651907 B CN 102651907B CN 201210134668 A CN201210134668 A CN 201210134668A CN 102651907 B CN102651907 B CN 102651907B
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specific resources
preamble
uplink
signature sequence
community
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CN102651907A (en
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张兴炜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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

The embodiment of the invention discloses an uplink transmission processing method, belonging to the technical field of communication. The method comprises the following steps: when a lead code Preamble needing to be sent on a first community by the user equipment UE and a monitoring reference signal SRS needing to be sent on a second community by the user equipment UE are overlapped on a time domain, a specific resource used for sending the Preamble is selected; and the Preamble is sent to a base station to utilize the specific resource to indicate the uplink transmission of the UE, wherein when the specific resource is a first specific resource, the first specific resource indicates that the UE does not send the SRS, the power is limited or the power is scaled; and when the specific resource is a second specific resource, the second specific resource indicates that the UE sends the SRS, the power is not limited or the power is not scaled. According to the technical scheme, the UE and the uplink transmission of the base station can realize consistency.

Description

A kind of uplink processing method, base station and subscriber equipment
Technical field
The present invention relates to communication technical field, particularly relate to a kind of uplink processing method, base station and subscriber equipment.
Background technology
LTE (Long Term Evolution) Rel-11 (Release 11, version 11) be a kind of LTE-A (LTE-Advance, the evolution of LTE) system, it strengthens to some extent relative to LTE Rel-8 (version 8) technology, there is higher bandwidth requirement, the highlyest support the peak data rate reaching 1Gbit/s (bps).In order to meet the requirement of LTE-A, lte-a system is by carrier convergence (Component Aggregation, CA) technology is as the method for its expanding system bandwidth, and adopt MIMO (Multiple-Input Multiple-Output, multiple-input and multiple-output) technology and adaptive technique to improve data transfer rate and systematic function in a large number.Under LTE-A carrier convergence scene, a UE (subscriber equipment, User Equipment) can support at most 5 component carriers (Component Carrier, CC), and namely network system uses multiple component carrier to serve for UE.Network system, as base station (eNodeB, eNB), can configure a pair main component carrier (PCC, Primary CC) to UE, this pair PCC comprises up PCC and descending PCC.In addition UE also can be configured one or more auxiliary component carrier (SCC, Secondary CC), and main component carrier is also referred to as main carrier, and auxiliary component carrier is also referred to as auxiliary carrier wave.Main carrier only has one usually, and auxiliary carrier wave can have multiple.Physical Uplink Control Channel (the PUCCH of UE, Physical Uplink Control Channel) be usually only present on main carrier, main carrier also comprises Physical Uplink Shared Channel (PUSCH, Physical Uplink Shared Channel).And the auxiliary carrier wave of UE only includes usually PUSCH, do not comprise PUCCH.Base station only sends to the downwards public control information of all UE usually at main carrier, on auxiliary carrier wave, base station also sends Downlink Control Information, but this Downlink Control Information is all that UE is special, specific control information uses to certain UE specific, and base station does not send downwards public control information usually on auxiliary carrier wave.The community (Cell) that main carrier is corresponding is called main plot (Pcell), and the community that auxiliary carrier wave is corresponding is called auxiliary community (Scell).In LTE-A, UE with base station uplink synchronous after, carried out uplink by base station scheduling.RACH (Random Access Channel, Random Access Channel) by also not with the UE of the UE of base station synchronization or step-out for realizing up Timing Synchronization.The TA (timing advance, Timing Advance) of SCell is usually with reference to the TA of PCell.Such as, the delay that the signal that different UE sends may exist in the process transferring to base station is different, in order to realize up Timing Synchronization when ensureing that the upward signal of different UEs arrives base station, avoid intersymbol interference, different UE carries the previous different time in up transmission, this Timing Advance and TA.Due to Doppler effect, the TA value that same UE sends required for upward signal on different districts in other words different component carrier also may be different.Therefore UE TA on one cell indicates UE sends signal to base station during in this community needs the time in advance.If base station is at moment M+m Received signal strength, UE needs to send signal at moment M, so that signal arrives base station in the M+m moment after transmitting, time m is exactly the timing advance of UE.
Along with the development of LTE technology, the TA of a community of UE may always with another community for reference, UE may step-out on one cell, and still synchronous on another community.UE needs to do Stochastic accessing on the community of step-out, namely sends Preamble (lead code).Meanwhile, UE also may will send SRS (Sounding Reference Signal, interception reference signal) on community of another normal work, and therefore may to occur in time domain overlapping for described Preamble and described SRS.If UE transmits described Preamble and described SRS simultaneously, the up total emission power of UE may be caused to exceed the maximum transmission power of UE, cause power limited.Said process also may cause the up total emission power of UE to reach interference rank causing interference-limited, and namely the up total emission power of UE is excessive, may bring interference to other UE in band or band other equipment outer.During power limited, UE can select the high channel prior of some priority send and do not send the low channel of some priority, or UE can reduce the transmitting power of the channel of low priority.If UE is at PRACH (the Physical Random Access Channel of a community, Physical Random Access Channel) the upper Preamble sent and the SRS on another community be sent in time domain occurs overlapping, when total transmitting power of UE may exceed maximum transmission power, now UE can abandon the SRS of low priority, and only sends the Preamble of high priority.Because, for a UE, the power-priority of common signal is: PRACH > PUCCH > PUSCH with UCI (carrying the PUSCH of ascending control information) > PUSCH > SRS; When total transmitting power of UE does not exceed maximum transmission power, UE supports to send SRS and PRACH simultaneously.
When UE is when occurring that Preamble and the UE that the community of step-out is transmitted occurs overlapping at the SRS that another does not occur that out-of-sync cells is transmitted in time domain for one, do not know UE due to base station whether gross power is limited, therefore base station do not know that whether UE sends SRS and Preamble just at the same time, so just causing uplink between base station and UE occurs inconsistent, namely produces fuzzy.Fuzzy problem may cause UE due to power limited abandoned SRS time, base station but thinks that UE has SRS to send, so base station obtain mistake demodulation result.Because the channel status measurement result based on SRS is used to uplink scheduling, the demodulation result of mistake will affect the determination of up MCS (Modulation and Coding Scheme, Modulation and Coding Scheme), and then affect up-link throughput.In addition, when UE does not have power limited and have sent SRS, and base station also may think that UE does not send SRS, and does not remove demodulation SRS, and cause SRS not to be used effectively, base station interface-free resources is wasted.In addition, UE is at emergent power by carrying out power scaling possibly in limited time, and the UE whether limited or power scaling of emergent power will not be known in base station, execution and the inconsistent operation of UE.Therefore, under carrier convergence scene, when needing when there being the UE of multiple community to carry out Stochastic accessing a community, between base station and UE may there is the inconsistent fuzzy problem becoming needs and solve caused in uplink.
Summary of the invention
The embodiment of the present invention provides a kind of uplink processing method, base station and subscriber equipment, UE need a community in multiple cells sends preamble with on another community, need the SRS sent to exist in time domain overlapping time, make the realization when uplink of UE and base station consistent.
On the one hand, a kind of uplink processing method is provided, comprises:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, select the specific resources for sending described Preamble;
Described Preamble is sent with the uplink utilizing described specific resources to indicate UE to base station, wherein:
When specific resources is the first specific resources, described first specific resources indicates that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, described second specific resources indicates described UE transmission SRS, non-emergent power is limited or do not carry out power scaling.
On the other hand, a kind of uplink processing method is provided, comprises:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain, receive the described Preamble based on specific resources that UE sends;
According to described Preamble based on described specific resources, determine the uplink of UE, comprising:
When specific resources is the first specific resources, determine that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, determine that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
On the other hand, a kind of user equipment (UE) is provided, comprises:
Selected cell, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain at described UE, selects the specific resources for sending described Preamble;
First transmitting element, for sending described Preamble to base station with the uplink utilizing described specific resources to indicate UE, wherein:
When specific resources is the first specific resources, described first specific resources indicates that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, described second specific resources indicates described UE transmission SRS, non-emergent power is limited or do not carry out power scaling.
On the other hand, a kind of base station is provided, comprises:
First receiving element, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain at user equipment (UE), receive the described Preamble based on specific resources that UE sends;
First determining unit, for according to described Preamble based on described specific resources, determine the uplink of UE, comprising:
When specific resources is the first specific resources, determine that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, determine that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
Pass through technique scheme, when to occur in time domain overlapping for described Preamble and described SRS, UE by Preamble based on specific resources to indicate described UE whether to send SRS, whether emergent power to base station limited or carry out power scaling, UE and base station are realized consistent when uplink.
On the other hand, a kind of uplink processing method is provided, comprises:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, generate uplink indication information;
Described uplink indication information is sent a kind of to indicate UE to carry out in the following two kinds uplink transmission mode to base station:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
On the other hand, a kind of uplink processing method is provided, comprises:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, receive the uplink indication information that UE sends;
Based on described uplink indication information, determine that UE carries out in the following two kinds uplink transmission mode a kind of:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
On the other hand, a kind of user equipment (UE) is provided, comprises:
Generation unit, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain as described UE, generates uplink indication information;
Second transmitting element, a kind of to indicate UE to carry out in the following two kinds uplink transmission mode for sending described uplink indication information to base station:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
On the other hand, a kind of base station is provided, comprises:
Second receiving element, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain when user equipment (UE), receives the uplink indication information that UE sends;
Second determining unit, for based on described uplink indication information, determine that UE carries out in the following two kinds uplink transmission mode a kind of:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
Pass through technique scheme, when to occur in time domain overlapping for described Preamble and described SRS, to base station, UE indicates whether described UE sends SRS, emergent power is limited or carry out power scaling by uplink indication information, UE and base station are realized consistent when uplink.
On the other hand, a kind of uplink processing method is provided, comprises:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame, send SRS at present sub-frame to base station;
Another subframe after present sub-frame sends Preamble to base station.
On the other hand, a kind of uplink processing method is provided, comprises:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame, receive at present sub-frame the SRS that UE sends;
Another subframe after present sub-frame receives the Preamble that UE sends.
On the other hand, a kind of user equipment (UE) is provided, comprises:
3rd transmitting element, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame as described UE, sends SRS at present sub-frame to base station;
4th transmitting element, sends Preamble for another subframe after present sub-frame to base station.
On the other hand, a kind of base station is provided, comprises:
3rd receiving element, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame as described UE, receives at present sub-frame the SRS that UE sends;
4th receiving element, receives the Preamble of UE transmission for another subframe after present sub-frame.
Pass through technique scheme, when to occur in time domain overlapping for described Preamble and described SRS, first UE can send SRS, and send Preamble in subsequent subframe, avoid the SRS of the Preamble of a community and another community in time domain, occur real conflict, avoid occurring that UE does not send SRS, power limited or power scaling, UE and base station are realized when uplink consistent.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The rough schematic view that Fig. 1 transmits for Preamble and SRS occurred under a kind of application scenarios of providing in inventive embodiments simultaneously;
The rough schematic view that Fig. 2 transmits for Preamble and SRS occurred under the another kind of application scenarios that provides in inventive embodiments simultaneously;
The schematic diagram of the uplink processing method of a kind of simplification that Fig. 3 provides for the embodiment of the present invention;
The schematic diagram of the uplink processing method that the another kind that Fig. 4 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Fig. 5 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Fig. 6 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Fig. 7 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Fig. 8 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Fig. 9 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Figure 10 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Figure 11 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Figure 12 provides for the embodiment of the present invention simplifies;
The schematic diagram of the uplink processing method that the another kind that Figure 13 provides for the embodiment of the present invention simplifies;
The simplified structure schematic diagram of a kind of UE that Figure 14 provides for the embodiment of the present invention;
The simplified structure schematic diagram of a kind of base station that Figure 15 provides for the embodiment of the present invention;
The simplified structure schematic diagram of the another kind of UE that Figure 16 provides for the embodiment of the present invention;
The simplified structure schematic diagram of the another kind of base station that Figure 17 provides for the embodiment of the present invention;
The simplified structure schematic diagram of the another kind of UE that Figure 18 provides for the embodiment of the present invention;
The simplified structure schematic diagram of the another kind of base station that Figure 19 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Below the simple application scenarios of the one of the embodiment of the present invention is introduced.Along with LTE technical development, different component carriers can have different TA values.Multiple component carrier can be divided into different TAG (TA group, TA Group) according to the TA value of each component carrier.Comprise one or more component carrier in a TAG, each component carrier corresponds to a community.The TA value of the one or more communities comprised in a TAG can be identical.The TA of other SCell in the TAG at PCell place with the TA of PCell for reference; If only comprise multiple SCell in TAG and do not comprise PCell, then the TA value of a SCell in this TAG is by conduct reference TA.Two carrier waves for polymerization belong to the UE of two TAG, and a TAG may occur step-out, namely on the community of UE in this TAG with base station step-out, but still may keep synchronous with base station on another TAG.If the SCell of UE in the TAG of step-out sends the Preambl being used for RACH, then may to occur in time domain overlapping with the SRS that sends on the community of UE in another TAG.Sometimes, UE is also allowed on SCell to send that SRS that Preamble that PRACH on SCell of Preamble, UE sends also may send on PCell or other SCell with UE occurs in time domain is overlapping.
When Liang Ge community lays respectively in different TAG, the SRS that UE sends on one cell and the Preamble sent on another community occur that the overlapping situation in time domain may have two types.First, a Preamble community sent may transmit in same subframe with the SRS that sends on another community.As shown in Figure 1, the SRS on the Preamble on a SCell in a TAG (being designated TAG1) and another PCell of another TAG (being designated TAG2) transmits in same subframe n.In another case, as shown in Figure 2, because TAG1 and TAG2 can have different TA values, the subframe n+1 of subframe n and the TAG2 of TAG1 may exist overlapping, even if the SRS of a SCell in TAG1 transmits at subframe n, and the Preamble of another SCell, in subframe n+1 transmission, still may occur that situation about transmitting appears in the SRS of a SCell and the Preamble of another SCell in TAG2 simultaneously.
Be not limited only to the application scenarios shown in Fig. 1 and 2 that the embodiment of the present invention provides, under other scenes, when UE has multiple community, and when the TA of a community can not be applied to another community, also may occur that UE is a community step-out, in the situation of another cell synchronous.So just may produce UE Stochastic accessing on one cell, and on another community normal transmission, then Preamble and SRS send just may there is potential conflict.In view of this, the schematic diagram of the uplink processing method of a kind of simplification that Fig. 3 provides for the embodiment of the present invention, comprising:
S31: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, select the specific resources for sending described Preamble;
S32: based on described specific resources, sends described Preamble with the uplink utilizing described specific resources to indicate UE to base station.
Particularly, when specific resources is the first specific resources, described first specific resources indicates that described UE does not send SRS, emergent power is limited or carry out power scaling; When specific resources is the second specific resources, described second specific resources indicates described UE transmission SRS, non-emergent power is limited or do not carry out power scaling.
In the present embodiment, the timing advance of described first community can be identical with the timing advance of described second community, or also can there is difference.When the timing advance of this Liang Ge community is identical, Liang Ge community can belong to different TAG, may there is UE step-out and still synchronous in another community on one cell.If at this moment may there is with the SRS that originally will send conflict at transmission Preamble in UE.When the timing advance of Liang Ge community is different, the adjacent sub-frame of different districts may exist overlapping, also can there is the possibility of Preamble and SRS conflict.Occur in time domain at described Preamble and described SRS overlapping, when namely may clash, UE by Preamble based on specific resources to indicate described UE whether to send SRS, whether emergent power to base station limited or whether carry out power scaling, UE and base station are realized consistent when uplink.
After at described Preamble and described SRS, to occur in time domain overlapping, if transmit described Preamble and described SRS simultaneously, by the maximum transmission power causing the up total emission power of UE to exceed UE, cause power limited, at this moment UE may carry out power scaling or directly abandon SRS.At this moment by UE to adopt to base station based on the Preamble sending strategy of specific resources, can implicit expression indicate whether that to base station emergent power is limited or whether send SRS, so that base station is known the situation whether power limited of UE, power scaling or SRS send make UE and base station can reach an agreement with regard to the power limited situation of UE.Described power scaling is the power adjustment that UE carries out when power limited.When power limited, UE needs to reduce according to a certain percentage transmitting power usually.By adopting the scheme of this resource-based implicit expression instruction, the uplink situation of UE can be known in base station, thus makes UE reach consistent with base station in UE uplink.
Embodiment shown in Fig. 3 is the uplink processing procedure that UE performs, the schematic diagram of the uplink processing method that the another kind that Fig. 4 provides for the embodiment of the present invention simplifies, and the method is performed by base station, and it comprises:
S41: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain, receive the described Preamble based on specific resources that UE sends;
S42: according to described Preamble based on described specific resources, determine the uplink of UE.Particularly, when specific resources is the first specific resources, base station determines that described UE does not send SRS, emergent power is limited or carry out power scaling; When specific resources is the second specific resources, base station determines that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
In the method that the embodiment of Fig. 3 and Fig. 4 provides, described first specific resources and described second specific resources are not occured simultaneously, and are namely the two spike-type cultivars that there is not coincidence completely.If described first specific resources C1 represents, if the second specific resources C2 represents, then the first specific resources and described second provides whole alternative resources set C, the i.e. C=C1+C2 that the union of particular source is described specific resources.The ratio that described first specific resources accounts for the set of whole alternative resources is greater than the ratio that described second specific resources accounts for the set of described whole alternative resources, or described first specific resources to account for the ratio that the ratio of the set of whole alternative resources and described second specific resources account for the set of whole alternative resources roughly the same.First community can belong to a TAG, and the second community can belong to the 2nd TAG, and two TAG can have different TA values.First community and the second community may be PCell, and may be also SCell, the present embodiment be not construed as limiting this.Specific resources can be the signature sequence that the described Preamble of generation uses, and also can be the transmitting power sending described Preamble.
For the ease of understanding, on the basis of Fig. 3 and Fig. 4, the schematic diagram of the uplink processing method that the another kind that Fig. 5 provides for the embodiment of the present invention simplifies, in this implementation, when UE on the first community with base station step-out, UE adopts the Preamble send mode based on competition again to access, and described method comprises:
S51: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain, UE selects a signature sequence from a signature sequence set, and using selected signature sequence as described Preamble;
S52:UE sends described Preamble to base station;
S53: the uplink situation of UE is determined based on the described signature sequence set belonging to described signature sequence in base station.
The Preamble that UE sends is produced by a signature sequence usually.Such as, for common LTE system, the signature sequence that community optionally produces preamble is 64, these 64 sequences may need to use multiple ZC (Zadoff-Chu) basic sequence, multiple ZC basic sequence finally obtains 64 signature sequences through multiple different cyclic shift (CS, Cyclic Shift).At UE based in non-competing access procedure, base station is that UE distributes a signature sequence, and this signature sequence is only used by this UE, thus avoids multiple UE to occur competition.For UE based on competition Stochastic accessing, UE from 64-Ncf signature sequence appoint get one, and utilization signature sequence of getting carry out Stochastic accessing.Wherein Ncf is the signature sequence number for non-competing access that base station retains, then 64-Ncf is exactly all signature sequence numbers that UE can be used for the Stochastic accessing competed.
In the present embodiment, UE and base station can arrange two signature sequence set in advance, and the signature sequence in two signature sequence set does not exist repetition.Such as, the range of choice of the signature sequence that can use the UE based on contention access does some restrictions, as 64-Ncf signature sequence is divided into two groups, is respectively the first signature sequence set and the second signature sequence set.When UE do not send SRS, emergent power limited or carry out power scaling time, UE appoints and gets a signature sequence as Preamble from the first signature sequence set; As UE, to send SRS, non-emergent power limited or when not carrying out power scaling, and UE appoints and gets a signature sequence as Preamble from the second signature sequence set.For base station side, when the signature sequence of Preamble receiving UE is from the first signature sequence set, judge that UE does not send SRS, emergent power is limited or carry out power scaling; When signature sequence is from the second signature sequence set, judge that UE have sent SRS, non-emergent power is limited or do not carry out power scaling.The number of the signature sequence comprised in the first signature sequence set and the second signature sequence set can be widely different, how a lot of the signature sequence number of the comparable first signature sequence set of the such as signature sequence number of the second signature sequence set is, reserve the signature sequence of less number namely only to the first signature sequence set, be less than UE because UE does not send SRS, emergent power probability that is limited or that carried out power scaling to have sent SRS, non-emergent power limited or do not carry out the probability of power scaling.Such as, if the optional signature sequence for Stochastic accessing is 50, then the first signature sequence set can be 10, and the second signature sequence is 40.Certainly, in the first signature sequence set and the second signature sequence set, signature sequence quantity also can be set as roughly the same.
In another kind of implementation, as Fig. 6, the schematic diagram of the uplink processing method that the another kind that giving the embodiment of the present invention provides simplifies, comprising:
S61: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain, UE determines the transmitting power sending described Preamble;
S62:UE adopts described transmitting power to send Preamble to base station;
S63: the uplink situation of UE is determined based on described transmitting power in base station.
Particularly, in LTE, UE is when performing Stochastic accessing, power in PRACH controls to be a kind of climbing mechanism, namely UE is after sending Preamble failure once to base station, and the transmitting power next time sending Preamble increases a step-length by the basis of upper once transmitting power, if continue unsuccessfully, continues increase step-length, until send Preamble success to base station, UE can realize the connection with base station.Concrete Preamle climbs mechanism can with reference to following computing formula:
P PRACH(i)＝min{P CMAX，P 0_Pre+Δ pre+(N pre-1)dP rampup+PL}
Wherein, P pRACHi () is i-th power sending Preamble, P cmaxfor UE maximum transmission power, P o_prefor the open loop power of Preamble, Δ prefor power adjustment, N prefor sending the total degree of Preamble, dP rampupfor power increase step-length, unit is dB, value can be 0,2,4 or 6, PL be path loss.Min{} represents that getting minimum value calculates.When the Preamble that UE sends on one cell occurs overlapping with the SRS sent on another community in time domain, the Preamble transmitting power that UE uses is more than or equal to and equals pre-determined threshold, namely the transmitting power preset, base station when finding that the transmitting power of described Pramble is more than or equal to described thresholding, then determines that UE does not send SRS or determines that the limited or UE of UE emergent power carries out power scaling.The Preamble transmitting power used as UE is less than described pre-determined threshold, then base station determines that UE have sent the limited or UE of the non-emergent power of SRS or UE and do not carry out power scaling.In the present embodiment, when Preamble transmitting power is less, then thinks that UE also has enough power headroom to send SRS, there is no the situation that emergent power is limited, also do not need to carry out power scaling.When Preamble transmitting power is larger, then UE and base station determine that the transmission of Preamble has taken more power respectively, then UE does not have enough power headroom to send SRS, the limited or power scaling of possible emergent power.When the transmitting power of described Preamble be greater than equal in advance to establish thresholding time, the range of choices of described transmitting power is less; When the transmitting power of described Preamble is less than pre-determined threshold, the range of choices of described transmitting power is comparatively large, and large many of transmitting power range of choices when its scope can be less than pre-determined threshold than the transmitting power of described Preamble.The scope of such as transmitting power is from 0 to a, and pre-determined threshold can be b, then a-b can much larger than b, at this moment due to limited being less than possibly of emergent power occur not emergent power limited may.Alternatively, a-b also can be set as with b roughly the same, and namely pre-determined threshold b is arranged near 0 to the mid point of this span of a.
That carrys out implicit expression from embodiment corresponding to Fig. 3 to Fig. 6 by the resource that Preamble adopts indicates uplink situation institute different to base station, the schematic diagram of the uplink processing method that the another kind that Fig. 7 provides for the embodiment of the present invention simplifies, the method realizes the instruction to uplink situation by up signaling, comprising:
S71: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, generates uplink indication information;
S72: send described uplink indication information to base station a kind of to indicate UE to carry out in the following two kinds uplink transmission mode:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
The embodiment that described Fig. 7 is corresponding is performed by UE, and base station then performs corresponding operation, and as shown in Figure 8, the schematic diagram of the uplink processing method that the another kind provided for the embodiment of the present invention simplifies, comprising:
S81: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, receives the uplink indication information that UE sends;
S82: based on described uplink indication information, determines that UE carries out in the following two kinds uplink transmission mode a kind of:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
By the technical scheme that Fig. 7 and Fig. 8 is corresponding, when to occur in time domain overlapping for described Preamble and described SRS, to base station, UE indicates whether described UE sends SRS, emergent power is limited or carry out power scaling by uplink indication information, UE and base station are realized consistent when uplink.In addition, when UE do not send uplink indication information or base station correctly do not receive uplink indication information time, then base station can give tacit consent to that UE does not send SRS, emergent power is limited or carry out power scaling.UE specifically can send uplink indication information on the second community, also can perform described transmission on other communities except the first community and the second community.Base station then receives uplink indication information on the second community, or other communities except the first community and the second community perform described reception.UE keeps with base station connecting and synchronous on the community for sending uplink indication information.
In a kind of specific implementation, this uplink indication information can be carried on PUCCH or PUSCH and send, and it can be specifically the indication information of 1 bit.As shown in Figure 1, transmit while UE occurs Preamble and SRS on present sub-frame n, and power limited may be caused thus, or do not send SRS, or need UE to carry out power scaling adjustment.In order to by signaling to base station instruction uplink situation, UE at least one subframe in k subframe before present sub-frame n can send described uplink indication information to base station, and k can be natural number.Usually, in TDD (time division duplex, Time Division Duplexing) system, k value is 4,5,6,7 or 8.In FDD (Frequency Division Duplexing (FDD), Frequency Division Duplexing) system, the value of k is 4.When a described bit indication information transmits in PUCCH, can be carried in the bit of the traditional UCI in PUCCH.This uplink indication information can be a kind of new ascending control information (UCI, Uplink Control Information), to be different from existing UCI information in PUCCH channel, take an actual overhead bit, namely by a newly-increased bit, described deixis is realized.Such as, when this bit is 1, then can show that described UE does not send SRS, emergent power is limited or carry out power scaling.When this bit is 0, then can show that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.The present embodiment does not limit this.
Described uplink indication information can also be virtual information, does not take actual bit, is indicated by the resource of transmission PUCCH.Such as, UE can send PUCCH signaling to base station, this signaling itself does not carry independently uplink indication information, but the resource used transmitting this PUCCH can be used as uplink indication information, at this moment uplink indication information is not actual bit, but being carried by PUCCH of implicit expression, the resource used by PUCCH reflects.This uplink indication information specifically can be selected to characterize by channel resource, running time-frequency resource or cyclic shift.The method does not need the additional bit byte expending PUCCH, can pare down expenses.Particularly, when the PUCCH signaling use first kind resource of UE transmission, as the channel in the first channel set, then characterizing uplink indication information is 1.When the PUCCH signaling use Equations of The Second Kind resource of UE transmission, as the channel in second channel set, then characterizing uplink indication information is 0.There is not common factor in first kind resource and Equations of The Second Kind resource.
For ease of understanding, on the basis of Fig. 7 and 8, the schematic diagram of the uplink processing method that the another kind that Fig. 9 provides for the embodiment of the present invention simplifies, comprising:
S91: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame n, UE generates uplink indication information.
In at least one subframe in 4 subframes of S92:UE before present sub-frame n, PUSCH or PUCCH is utilized to send described uplink indication information to base station to indicate the uplink transmission mode of UE; Particularly, then UE any one subframe in n-4 to the (n-1)th subframe can send described uplink indication information.
S93: the uplink transmission mode of UE is determined based on the uplink indication information received in base station.
In another kind of specific implementation, uplink indication information can be carried in the existing bit in described Preamble, and the function of described existing bit is redefined as carrying described uplink indication information.Described existing bit is used to indicate the message size of layer 2 (MAC, media are got involved and controlled) or layer 3 (RRC, wireless heterogeneous networks) in traditional Long Term Evolution LTE.Along with the development of LTE technology, this bit is abandoned in new LTE technology, and this bit discharged can be fully used in the present embodiment.As shown in Figure 10, the schematic diagram of the uplink processing method that the another kind provided for the embodiment of the present invention simplifies, comprising:
S101: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, UE selects a signature sequence as Preamble, carries uplink indication information in the existing bit of described Preamble;
S102:UE sends described Preanble with the uplink transmission mode of the uplink indication information utilizing the described existing bit in described Preanble and carry instruction UE to base station;
S103: the uplink transmission mode of UE is determined based on uplink indication information in base station.
The embodiment of the present invention additionally provides another kind and realizes the UE scheme consistent with base station uplink, to indicate and to carry out the mode of implicit expression instruction by Preamble resource different from being shown by signaling before, the schematic diagram of the uplink processing method that the another kind that Figure 11 provides for the embodiment of the present invention simplifies, comprising:
S111: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame, send SRS at present sub-frame to base station;
S112: another subframe after present sub-frame sends Preamble to base station.
Corresponding with the method that UE in Figure 11 performs, the schematic diagram of the uplink processing method that the another kind that Figure 12 provides for the embodiment of the present invention simplifies, the method that should be performed by base station comprises:
S121: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame, receives at present sub-frame the SRS that UE sends;
S122: another subframe after present sub-frame receives the Preamble that UE sends.
By adopting the scheme of Figure 11 and Figure 12, when to occur in time domain overlapping for described Preamble and described SRS, first UE can send SRS, and send Preamble in subsequent subframe, and successively in these two subframes, receive SRS and Preamble respectively by base station, avoid the SRS of the Preamble of a community and another community in time domain, occur real conflict, thus avoid the appearance of power limited situation, without the need to giving up a certain category information, also without the need to carrying out power scaling, UE and base station are realized consistent when uplink.Optionally, another subframe described is the subframe that the next one of described present sub-frame comprises PRACH.As shown in figure 13, the schematic diagram of the uplink processing method that the another kind provided for the embodiment of the present invention simplifies, comprising:
S131: when user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame n, UE sends SRS at present sub-frame n to base station;
S132:UE with present sub-frame n after another adjacent with present sub-frame n comprise PRACH subframe n+1 on send Preamble to base station.In the embodiment shown in fig. 13, subframe n+1 comprises PRACH, and UE can send Preamble in the subframe that this is adjacent with subframe n.
In another case, when subframe n+1 does not comprise PRACH, UE sends Preamble in the most contiguous subframe comprising PRACH of present sub-frame n.Such as, if subframe n+1 and subframe n+2 does not have PRACH, but subframe n+3 has PRACH, then subframe n+3 is the subframe that comprises PRACH the most contiguous with present sub-frame n.
In the scheme of Figure 11 to Figure 13, successively two kinds of upward signals that should transmit in same subframe are completed in different subframe by base station and UE, can avoid emergent power convergent-divergent, power limited or not send the situation of SRS owing to abandoning, base station and UE can realize harmoniously about uplink.
Below the embodiment of the equipment related in said method embodiment is described, as shown in figure 14, for the simplified structure schematic diagram of a kind of UE that the embodiment of the present invention provides, this UE, for performing the function of the UE mentioned in embodiment of the method corresponding to Fig. 3 to Fig. 6, comprising:
Selected cell 141, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain as UE, selects the specific resources for sending described Preamble;
First transmitting element 142, for based on described specific resources, sends described Preamble with the uplink utilizing described specific resources to indicate UE to base station.Particularly, when specific resources is the first specific resources, described first specific resources indicates that described UE does not send SRS, emergent power is limited or carry out power scaling; When specific resources is the second specific resources,
Described second specific resources indicates described UE transmission SRS, non-emergent power is limited or do not carry out power scaling.The timing advance of described first community can be identical with the timing advance of described second community, or also can there is difference.When the timing advance of this Liang Ge community is identical, Liang Ge community can belong to different TAG, may there is UE step-out and still synchronous in another community on one cell.If at this moment may there is with the SRS that originally will send conflict at transmission Preamble in UE.The UE of the present embodiment can realize when uplink consistent with base station.The concrete function step performed by concrete unit in the UE of Figure 14 can with reference to the flow process in embodiment of the method in figure 3 to Fig. 6, and concrete each unit can by software or hardware implementing.Selected cell 141 can be processor; First transmitting element 142 can be a radio system, as Transceiver (radio receiving-transmitting unit).Described processor can be realized by logical integrated circuit, and described radio system driven antenna 140 externally can send data or signal.
The simplified structure schematic diagram of a kind of base station that Figure 15 provides for the embodiment of the present invention, this base station, for performing the function of base station in embodiment of the method corresponding to Fig. 3 to Fig. 6, comprising:
First receiving element 151, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain at user equipment (UE), receive the described Preamble based on specific resources that UE sends;
First determining unit 152, for according to described Preamble based on described specific resources, determine the uplink of UE, comprising:
When specific resources is the first specific resources, determine that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, determine that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
The concrete function step performed by concrete unit in the base station of Figure 15 can with reference to the flow process in embodiment of the method in figure 3 to Fig. 6, and concrete each unit can by software or hardware implementing.First determining unit 152 can be processor; First receiving element 151 can be a radio system, as Transceiver (radio receiving-transmitting unit).Described processor can be realized by logical integrated circuit, described radio system can driven antenna 150 from external reception data or signal.
The apparatus embodiments corresponding for Figure 14 and Figure 15, described first community can belong to the first timing advance group TAG, and described second community can belong to the 2nd TAG; The timing advance of described first community is different from the timing advance of described second community.Described first specific resources and described second specific resources are not occured simultaneously, and the union that described first specific resources and described second provides particular source is the set of whole alternative resources of described specific resources.The ratio that described first specific resources accounts for the set of whole alternative resources is greater than the ratio that described second specific resources accounts for the set of described whole alternative resources, or described first specific resources to account for the ratio that the ratio of the set of whole alternative resources and described second specific resources account for the set of whole alternative resources roughly the same.
In one implementation, when specific resources is the first specific resources, described first specific resources is the first signature sequence set, and the signature sequence that described Preamble uses belongs to described first signature sequence set; When specific resources is the second specific resources, described second specific resources is the second signature sequence set, and the signature sequence that described Preamble uses belongs to described second signature sequence set.First signature sequence set and described second signature sequence union of sets collection are the set of the whole optional signature sequence based on the Stochastic accessing competed.
In another kind of implementation, when specific resources is the first specific resources, described first specific resources is the first transmitting power for sending described Preamble, and described first transmitting power is more than or equal to default transmitting power; When specific resources is the second specific resources, described second specific resources is the second transmitting power for sending described Preamble, and described second transmitting power is less than described default transmitting power.
Figure 16 provides a kind of simplified structure schematic diagram of user equipment (UE) for the embodiment of the present invention, for performing the function of UE in embodiment of the method corresponding to Fig. 7 to Figure 10, comprising:
Generation unit 161, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain as described UE, generates uplink indication information;
Second transmitting element 162, a kind of to indicate UE to carry out in the following two kinds uplink transmission mode for sending described uplink indication information to base station:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
Particularly, the second transmitting element 162 at least one subframe can send described uplink indication information to base station in k subframe before described first subframe; K is natural number.The concrete function step performed by concrete unit in the UE of Figure 16 can with reference to the flow process in embodiment of the method in figure 7 to Figure 10, and concrete each unit can by software or hardware implementing.Generation unit 161 can be processor; Second transmitting element 162 can be a radio system, as Transceiver (radio receiving-transmitting unit).Described processor can be realized by logical integrated circuit, and described radio system driven antenna 160 externally can send data or signal.
Figure 17 provides a kind of simplified structure schematic diagram of base station for the embodiment of the present invention, for performing the function of base station in embodiment of the method corresponding to Fig. 7 to Figure 10, comprising:
Second receiving element 171, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain when user equipment (UE), receive the uplink indication information that UE sends;
Second determining unit 172, for based on described uplink indication information, determine that UE carries out in the following two kinds uplink transmission mode a kind of:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
Particularly, the second receiving element 171 at least one subframe can receive described uplink indication information in k subframe before described first subframe; K is natural number.The concrete function step performed by concrete unit in the base station of Figure 17 can with reference to the flow process in embodiment of the method in figure 7 to Figure 10, and concrete each unit can by software or hardware implementing.Second determining unit 172 can be processor; Second receiving element 171 can be a radio system, as Transceiver (radio receiving-transmitting unit).Described processor can be realized by logical integrated circuit, and described radio system driven antenna 170 externally can send data or signal.
For the apparatus embodiments that Figure 16 and Figure 17 is corresponding, described first community can belong to the first timing advance group TAG, and described second community can belong to the 2nd TAG; The timing advance of described first community is different from the timing advance of described second community.Described uplink indication information can transmission on row control channel PUCCH or Physical Uplink Shared Channel PUSCH physically.When described uplink indication information physically row control channel PUCCH transmit, described uplink indication information is carried in the added bits in PUCCH.Described uplink indication information also can be carried in the existing bit in described Preamble, and the function of described existing bit is redefined as carrying described uplink indication information.Certainly, described uplink indication information also can be virtual information, and indicated by the resource of transmission PUCCH, concrete indicating means can see embodiment of the method before, and the present embodiment does not repeat this.Second transmitting element 162 specifically can send uplink indication information on the second community, also can perform described transmission on other communities except the first community and the second community.Second receiving element 171 receives uplink indication information on the second community, or other communities except the first community and the second community perform described reception.UE keeps with base station connecting and synchronous on the community for sending uplink indication information.
The simplified structure schematic diagram of a kind of user equipment (UE) that Figure 18 provides for the embodiment of the present invention, for performing the function of the UE in method corresponding to Figure 11 to Figure 13, comprising:
3rd transmitting element 181, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame as described UE, sends SRS at present sub-frame to base station;
4th transmitting element 182, sends Preamble for another subframe after present sub-frame to base station.
The concrete function step performed by concrete unit in the UE of Figure 18 can with reference to figures 11 to the flow process in embodiment of the method in Figure 13, and concrete each unit can by software or hardware implementing.3rd transmitting element 181 and the 4th transmitting element 182 can be a radio system respectively, as Transceiver (radio receiving-transmitting unit).These two radio systems can drive the antenna 180 of UE externally to send SRS and Preamble respectively.
The simplified structure schematic diagram of a kind of base station that Figure 19 provides for the embodiment of the present invention, for performing the function of the base station in method corresponding to Figure 11 to Figure 13, comprising:
3rd receiving element 191, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping on present sub-frame as described UE, receives at present sub-frame the SRS that UE sends;
4th receiving element 192, receives the Preamble of UE transmission for another subframe after present sub-frame.
The concrete function step performed by concrete unit in the base station of Figure 19 can with reference to figures 11 to the flow process in embodiment of the method in Figure 13, and concrete each unit can by software or hardware implementing.3rd receiving element 181 and the 4th receiving element 182 can be a radio system respectively, as Transceiver (radio receiving-transmitting unit).These two radio systems can drive the antenna 190 of base station respectively from external reception SRS and Preamble.
For the apparatus embodiments of Figure 18 and Figure 19, described first community can belong to the first timing advance group TAG, and described second community can belong to the 2nd TAG; The timing advance of described first community is different from the timing advance of described second community.Another subframe described is the subframe that the next one of present sub-frame comprises PRACH.The embodiment of the present invention additionally provides a kind of communication system, can comprise and any one corresponding UE in Figure 14 Figure 16 and Figure 18, and comprises and any one corresponding base station in Figure 15 Figure 17 and Figure 19.To be worked in coordination work by UE and base station, realize radio communication service.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The foregoing is only several embodiments of the present invention, those skilled in the art does not depart from the spirit and scope of the present invention according to carrying out various change or modification to the present invention disclosed in application documents.One of ordinary skill in the art will appreciate that and can be combined with each other the new embodiment of formation when not clashing between described embodiment or between the feature of different embodiment.

Claims (43)

1. a uplink processing method, is characterized in that, comprising:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain, select the specific resources for sending described Preamble;
Described Preamble is sent with the uplink utilizing described specific resources to indicate UE to base station based on described specific resources, wherein:
When specific resources is the first specific resources, described first specific resources indicates that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, described second specific resources indicates described UE transmission SRS, non-emergent power is limited or do not carry out power scaling.
2. method according to claim 1, is characterized in that, described first community belongs to the first timing advance group TAG, and described second community belongs to the 2nd TAG; Timing advance in a described TAG is different from the timing advance of described 2nd TAG.
3. method according to claim 1 and 2, it is characterized in that, described first specific resources and described second specific resources are not occured simultaneously, and the union of described first specific resources and described second specific resources is the set of whole alternative resources of described specific resources.
4. method according to claim 3, is characterized in that, the ratio that described first specific resources accounts for the set of whole alternative resources is greater than the ratio that described second specific resources accounts for the set of described whole alternative resources.
5. the method according to any one of claim 1,2,4, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first signature sequence set, and the first signature sequence that described Preamble uses belongs to described first signature sequence set; Describedly to send described Preamble to base station based on described specific resources and indicate the uplink of UE to comprise to utilize described specific resources: send described Preamble to base station to utilize the uplink of the first signature sequence set instruction UE belonging to described first signature sequence;
When specific resources is the second specific resources, described second specific resources is the second signature sequence set, and the second signature sequence that described Preamble uses belongs to described second signature sequence set; Describedly to send described Preamble to base station based on described specific resources and indicate the uplink of UE to comprise to utilize described specific resources: send described Preamble to base station to utilize the uplink of the second signature sequence set instruction UE belonging to described second signature sequence.
6. method according to claim 5, is characterized in that, the first signature sequence set and described second signature sequence union of sets collection are the set of the whole optional signature sequence based on the Stochastic accessing competed.
7. the method according to any one of claim 1,2,4, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first transmitting power for sending described Preamble, and described first transmitting power is more than or equal to default transmitting power; When specific resources is the second specific resources, described second specific resources is the second transmitting power for sending described Preamble, and described second transmitting power is less than described default transmitting power.
8. a uplink processing method, is characterized in that, comprising:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain, receive the described Preamble based on specific resources that UE sends;
According to described Preamble based on described specific resources, determine the uplink of UE, comprising:
When specific resources is the first specific resources, determine that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, determine that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
9. method according to claim 8, is characterized in that, described first community belongs to the first timing advance group TAG, and described second community belongs to the 2nd TAG; The timing advance of a described TAG is different from the timing advance of described 2nd TAG.
10. method according to claim 8 or claim 9, it is characterized in that, described first specific resources and described second specific resources are not occured simultaneously, and the union of described first specific resources and described second specific resources is the set of whole alternative resources of described specific resources.
11. methods according to claim 10, is characterized in that, the ratio that described first specific resources accounts for the set of whole alternative resources is greater than the ratio that described second specific resources accounts for the set of described whole alternative resources.
12. methods according to Claim 8, according to any one of 9,11, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first signature sequence set, and the first signature sequence that described Preamble uses belongs to described first signature sequence set; When specific resources is the first specific resources, described to determine that described UE does not send SRS, emergent power limited or carry out power scaling and comprise: determine that described UE does not send SRS, emergent power is limited or carry out power scaling based on the described first signature sequence set belonging to described first signature sequence;
When specific resources is the second specific resources, described second specific resources is the second signature sequence set, and the second signature sequence that described Preamble uses belongs to described second signature sequence set; When specific resources is the second specific resources, described to determine that described UE sends SRS, non-emergent power limited or do not carry out power scaling and comprise: determine that described UE sends SRS, non-emergent power is limited or do not carry out power scaling based on the described second signature sequence set belonging to described second signature sequence.
13. methods according to claim 12, is characterized in that, the first signature sequence set and described second signature sequence union of sets collection are the set of the whole optional signature sequence based on the Stochastic accessing competed.
14. methods according to Claim 8, according to any one of 9,11, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first transmitting power for sending described Preamble, and described first transmitting power is more than or equal to default transmitting power;
When specific resources is the second specific resources, described second specific resources is the second transmitting power for sending described Preamble, and described second transmitting power is less than described default transmitting power.
15. 1 kinds of uplink processing methods, is characterized in that, comprising:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, generate uplink indication information;
Described uplink indication information is sent a kind of to indicate UE to carry out in the following two kinds uplink transmission mode to base station:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
16. methods according to claim 15, is characterized in that, described first community belongs to the first timing advance group TAG, and described second community belongs to the 2nd TAG; The timing advance of a described TAG is different from the timing advance of described 2nd TAG.
17. methods according to claim 15 or 16, is characterized in that, describedly overlappingly appear at the first subframe;
Describedly send described uplink indication information to base station and comprise: in k subframe before described first subframe, at least one subframe sends described uplink indication information to base station; K is natural number.
18. methods according to claim 17, is characterized in that, described uplink indication information is carried on Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH.
19. methods according to claim 17, is characterized in that, described uplink indication information is virtual information, are indicated by the resource of transmission PUCCH.
20. methods according to claim 15 or 16, it is characterized in that, described uplink indication information is carried in the existing bit in described Preamble, and the function of described existing bit is redefined as carrying described uplink indication information.
21. 1 kinds of uplink processing methods, is characterized in that, comprising:
When user equipment (UE) needs the lead code Preamble that sends on the first community and described UE needs the interception reference signal SRS sent on the second community to occur overlapping in time domain, receive the uplink indication information that UE sends;
Based on described uplink indication information, determine that UE carries out in the following two kinds uplink transmission mode a kind of:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
22. methods according to claim 21, is characterized in that, described first community belongs to the first timing advance group TAG, and described second community belongs to the 2nd TAG; The timing advance of a described TAG is different from the timing advance of described 2nd TAG.
23. methods according to claim 21 or 22, is characterized in that, describedly overlappingly appear at the first subframe;
The uplink indication information that described reception UE sends comprises: in k subframe before described first subframe, at least one subframe receives the described uplink indication information that UE sends; K is natural number.
24. methods according to claim 23, is characterized in that, described uplink indication information is carried on Physical Uplink Control Channel PUCCH or Physical Uplink Shared Channel PUSCH.
25. methods according to claim 23, is characterized in that, described uplink indication information is virtual information, are indicated by the resource of transmission PUCCH.
26. methods according to claim 21 or 22, it is characterized in that, described uplink indication information is carried in the existing bit in described Preamble, and the function of described existing bit is redefined as carrying described uplink indication information.
27. methods according to any one of claim 21,22,24,25, it is characterized in that, also comprise: when UE does not send uplink indication information or base station does not correctly receive uplink indication information, then UE does not send SRS to acquiescence, emergent power is limited or carry out power scaling.
28. 1 kinds of user equipment (UE)s, is characterized in that, comprising:
Selected cell, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain at described UE, selects the specific resources for sending described Preamble;
First transmitting element, is used for sending described Preamble to base station with the uplink utilizing described specific resources to indicate UE based on described specific resources, wherein:
When specific resources is the first specific resources, described first specific resources indicates that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, described second specific resources indicates described UE transmission SRS, non-emergent power is limited or do not carry out power scaling.
29. UE according to claim 28, is characterized in that, described first specific resources and described second specific resources are not occured simultaneously, and the union of described first specific resources and described second specific resources is the set of whole alternative resources of described specific resources.
30. UE according to claim 28 or 29, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first signature sequence set, and the first signature sequence that described Preamble uses belongs to described first signature sequence set; Described first transmitting element, specifically for sending described Preamble to utilize the uplink of the first signature sequence set instruction UE belonging to described first signature sequence to base station;
When specific resources is the second specific resources, described second specific resources is the second signature sequence set, and the second signature sequence that described Preamble uses belongs to described second signature sequence set; Described first transmitting element, specifically for sending described Preamble to utilize the uplink of the second signature sequence set instruction UE belonging to described second signature sequence to base station.
31. UE according to claim 28 or 29, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first transmitting power for sending described Preamble, and described first transmitting power is more than or equal to default transmitting power;
When specific resources is the second specific resources, described second specific resources is the second transmitting power for sending described Preamble, and described second transmitting power is less than described default transmitting power.
32. 1 kinds of base stations, is characterized in that, comprising:
First receiving element, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain at user equipment (UE), receive the described Preamble based on specific resources that UE sends;
First determining unit, for according to described Preamble based on described specific resources, determine the uplink of UE, comprising:
When specific resources is the first specific resources, determine that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, determine that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
33. base stations according to claim 32, it is characterized in that, described first specific resources and described second specific resources are not occured simultaneously, and the union of described first specific resources and described second specific resources is the set of whole alternative resources of described specific resources.
34. base stations according to claim 32 or 33, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first signature sequence set, and the first signature sequence that described Preamble uses belongs to described first signature sequence set; When specific resources is the first specific resources, specifically for the described first signature sequence set belonging to described first signature sequence, described first determining unit determines that described UE does not send SRS, emergent power is limited or carry out power scaling;
When specific resources is the second specific resources, described second specific resources is the second signature sequence set, and the second signature sequence that described Preamble uses belongs to described second signature sequence set; When specific resources is the second specific resources, specifically for the described second signature sequence set belonging to described second signature sequence, described first determining unit determines that described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
35. base stations according to claim 32 or 33, it is characterized in that, when specific resources is the first specific resources, described first specific resources is the first transmitting power for sending described Preamble, and described first transmitting power is more than or equal to default transmitting power;
When specific resources is the second specific resources, described second specific resources is the second transmitting power for sending described Preamble, and described second transmitting power is less than described default transmitting power.
36. 1 kinds of user equipment (UE)s, is characterized in that, comprising:
Generation unit, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain as described UE, generates uplink indication information;
Second transmitting element, a kind of to indicate UE to carry out in the following two kinds uplink transmission mode for sending described uplink indication information to base station:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
37. UE according to claim 36, is characterized in that, describedly overlappingly appear at the first subframe;
Described second transmitting element for: in k subframe before described first subframe, at least one subframe sends described uplink indication information to base station; K is natural number.
38., according to UE according to claim 37, is characterized in that, the transmission on row control channel PUCCH or Physical Uplink Shared Channel PUSCH physically of described uplink indication information.
39. UE according to claim 36, is characterized in that, described uplink indication information is carried in the existing bit in described Preamble, and the function of described existing bit is redefined as carrying described uplink indication information.
40. 1 kinds of base stations, is characterized in that, comprising:
Second receiving element, during for needing the lead code Preamble that sends on the first community and described UE to need the interception reference signal SRS sent on the second community to occur overlapping in time domain when user equipment (UE), receives the uplink indication information that UE sends;
Second determining unit, for based on described uplink indication information, determine that UE carries out in the following two kinds uplink transmission mode a kind of:
Described UE does not send SRS, emergent power is limited or carry out power scaling;
Described UE sends SRS, non-emergent power is limited or do not carry out power scaling.
41. base stations according to claim 40, is characterized in that, describedly overlappingly appear at the first subframe;
Described second receiving element for: in k subframe before described first subframe, at least one subframe receives described uplink indication information; K is natural number.
42. base stations according to claim 41, is characterized in that, the transmission on row control channel PUCCH or Physical Uplink Shared Channel PUSCH physically of described uplink indication information.
43. base stations according to claim 40, is characterized in that, described uplink indication information is carried in the existing bit in described Preamble, and the function of described existing bit is redefined as carrying described uplink indication information.
CN201210134668.6A 2012-05-03 2012-05-03 Uplink transmission processing method, base station and user equipment Expired - Fee Related CN102651907B (en)

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