CN108702747A - Information transferring method and device - Google Patents

Information transferring method and device Download PDF

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Publication number
CN108702747A
CN108702747A CN201680083079.6A CN201680083079A CN108702747A CN 108702747 A CN108702747 A CN 108702747A CN 201680083079 A CN201680083079 A CN 201680083079A CN 108702747 A CN108702747 A CN 108702747A
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China
Prior art keywords
srs
time period
period
base station
parameter information
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Inventor
李�远
官磊
马莎
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Abstract

A kind of information transferring method of offer of the embodiment of the present invention and device, this method include:If UE determinations meet preset condition, which includes:UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and UE sends upstream data by base station instruction in second time period;UE determines UE corresponding SRS parameter informations in first time period;UE sends SRS according to corresponding SRS parameter informations in first time period;Wherein, the first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.To improve resource utilization.

Description

Information transferring method and device Technical field
The present embodiments relate to the communication technology more particularly to a kind of information transferring methods and device.
Background technique
Long term evolution (the Licensed-Assisted Access using-Long Term Evolution of authorization auxiliary access, abbreviation LAA-LTE) system pass through carrier wave polymerize (Carrier Aggregation, abbreviation CA) technology, it can will be in available spread spectrum to unlicensed spectrum.
Although unlicensed spectrum has low in cost relative to authorization frequency spectrum, the advantages that bandwidth rich can be used, but it may be worked in same unlicensed spectrum with Wireless Fidelity (Wireless Fidelity, abbreviation WiFi) be representative other wireless communication systems, due to WiFi equipment (including user equipment (User Equipment, abbreviation UE) and access point (Access Point, abbreviation AP)) and LAA-LTE equipment (including UE and base station) may not be laid with by same operator, planning deployment can not uniformly be carried out, these equipment might have lower geographical isolation, it is more serious compared to the wireless signal interference between same operator's distinct device.It is coexisted to realize to meet in unlicensed spectrum with the close friend of the different systems such as WiFi, LAA-LTE system can send out (Listen Before Talk using first listening afterwards, abbreviation LBT) Channel Access Mechanism, (Clear Channel Assessment is evaluated and tested using idle channel, abbreviation CCA) channel is detected, when channel is idle, CCA is completed, LAA-LTE equipment can occupy the channel and send physical layer Uplink Shared Channel (Physical Uplink Shared Channel, abbreviation PUSCH) data, when channel is busy, then execute interference avoidance, it is not take up the channel, other wireless telecom equipments occupancy is waited to terminate, channel is detected again , occupy the channel again when channel idle.
Detection reference signal (Sounding Reference Signal, abbreviation SRS) is sent from UE to base station in LAA-LTE system, to carry out the measurement of radio uplink channels.Fig. 1 is the structural schematic diagram of cell SRS subframe in LAA-LTE system, wherein, in cell SRS subframe include one and sends the SRS period for UE, the period is known as SRS and corresponds to the period, there are two kinds of situations on the period: a kind of situation are as follows: there are at least one UE to send SRS on the period；Another situation are as follows: there is no any one UE to send SRS on the period, and for not sending the UE of SRS on the period, it in the frequency spectrum resource etc. that the period is configured is idle state that base station, which is the UE, such as Fig. 1 It is shown, the first UE is not corresponded in SRS by base station instruction and is sent SRS on the period in cell SRS subframe, that is it is idle state that the first UE, which corresponds to the frequency spectrum resource that the period is configured in SRS, 2nd UE is corresponded in SRS by base station instruction and is sent SRS on the period, when the first UE is when the latter period that SRS corresponds to the period is called, i.e. when thering are PUSCH data to need to send on the latter period, at present in this case, first UE has to carry out CCA on the latter period, PUSCH data can not be sent on the latter period, to result in waste of resources.
Summary of the invention
The embodiment of the present invention provides a kind of information transferring method and device, to achieve the effect that save resource.
In a first aspect, the embodiment of the present invention provides a kind of information transferring method, comprising:
If user equipment (UE), which determines, meets preset condition, preset condition includes: that UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and UE sends upstream data by base station instruction in second time period；
UE determines UE corresponding SRS parameter information in first time period；
UE sends SRS according to corresponding SRS parameter information in first time period；
Wherein, first time period is that SRS corresponds to the period, and second time period is the latter period of first time period.
In the prior art, UE in first time period due to not sending SRS by base station instruction, therefore, uplink PUSCH data can not be sent in second time period UE, and CCA is executed, and UE of the embodiment of the present invention sends the SRS of filling in first time period, then no longer needing to execute CCA in second time period, PUSCH data can be directly transmitted, to improve resource utilization.
Optionally, UE determines UE corresponding SRS parameter information in first time period, comprising:
UE receives the configuration message that base station is sent, and configuration message includes at least one set SRS parameter information, and at least one set of SRS parameter information is for configuring the SRS that UE is sent in first time period；
UE determines corresponding SRS parameter information at least one set of SRS parameter information.
Wherein, the configuration message is for configuring the SRS that UE is sent in first time period.
Optionally, this method further include: UE reserves the third period as free time section；
Wherein, the third period is the previous period of first time period.
The purpose of reserved third period is to enable other UE that can carry out CCA on the third period.And since UE fills SRS in first time period, a CCA can be carried out less for other UE, It improves resource utilization.
Optionally, UE reserves the third period as free time section, comprising: UE receives the instruction message that the base station is sent；The UE reserves the third period according to the instruction message as free time section.
Optionally, it is he Single Carrier-Frequency Division multiple access SC-FDMA symbol that the period, which includes at least one,.
Inventive embodiments are explained below, a kind of information transferring method is provided, wherein this method is corresponding with the method that above-mentioned UE is executed, and corresponding technical effect is identical, and details are not described herein.
Second aspect, the embodiment of the present invention provide a kind of information transferring method, comprising:
Base station determines user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；
Base station sends configuration message to UE, and configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
Wherein, UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
First time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
Optionally, this method further include: base station sends instruction message to UE；
Instruction message is used to indicate the UE and reserves the third period as free time section；
Wherein, the third period is the previous period of the first time period.
Inventive embodiments are explained below, a kind of information carrying means is provided, wherein device part is corresponding with the method that above-mentioned UE is executed, and corresponding technical effect is identical, and details are not described herein.
The third aspect, the embodiment of the present invention provide a kind of information carrying means, and device is user equipment (UE), comprising: determining module and sending module；
If it is determined that module, which determines, meets preset condition, preset condition includes: that UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and UE sends upstream data by base station instruction in second time period；
Determining module is also used to determine UE corresponding SRS parameter information in first time period；
Sending module, for sending SRS in first time period according to corresponding SRS parameter information；
Wherein, first time period is that SRS corresponds to the period, and second time period is the latter period of first time period.
Optionally, device further include: receiving module；
Receiving module, for receiving the configuration message of base station transmission, configuration message includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
Determining module is specifically used for determining the corresponding SRS parameter information at least one set of SRS parameter information.
Optionally, device further include: reserved module；
Reserved module is free time section for reserving the third period；
Wherein, the third period is the previous period of the first time period.
Optionally, receiving module is also used to receive the instruction message that the base station is sent；The reserved module is specifically used for reserving the third period according to the instruction message for free time section.
Optionally, it is he Single Carrier-Frequency Division multiple access SC-FDMA symbol that the period, which includes at least one,.
Inventive embodiments are explained below, a kind of information carrying means is provided, wherein device part is corresponding with the method that above-mentioned base station executes, and corresponding technical effect is identical, and details are not described herein.
Fourth aspect, the embodiment of the present invention provide a kind of information carrying means, and device is base station, comprising:
Determining module, for determining user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；
Sending module, for sending configuration message to the UE, the configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
Wherein, the UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
The first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
Optionally, sending module is also used to send instruction message to the UE；
The instruction message is used to indicate the UE and reserves the third period as free time section；
Wherein, the third period is the previous period of the first time period.
Inventive embodiments are explained below, a kind of information carrying means is provided, wherein device part is corresponding with the method that above-mentioned UE is executed, and corresponding technical effect is identical, and details are not described herein.
5th aspect, the embodiment of the present invention provide a kind of information carrying means, and device is user equipment (UE), comprising: processor and transmitter；
If the processor, which determines, meets preset condition, the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and the UE sends upstream data by base station instruction in second time period；
Processor is also used to determine the UE corresponding SRS parameter information in the first time period；
Transmitter, for sending SRS in the first time period according to the corresponding SRS parameter information；
Wherein, the first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
Optionally, device further include: receiver；
Receiver, for receiving the configuration message of base station transmission, the configuration message includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
Processor is specifically used for determining the corresponding SRS parameter information in at least one set SRS parameter information.
Optionally, processor is also used to the reserved third period as free time section；
Wherein, the third period is the previous period of the first time period.
Optionally, receiver is also used to receive the instruction message that the base station is sent；
The processor is specifically used for reserving the third period according to the instruction message for free time section.
Optionally, it is he Single Carrier-Frequency Division multiple access SC-FDMA symbol that the period, which includes at least one,.
Inventive embodiments are explained below, a kind of information carrying means is provided, wherein device part is corresponding with the method that above-mentioned base station executes, and corresponding technical effect is identical, and details are not described herein.
6th aspect, the embodiment of the present invention provide a kind of information carrying means, and device is base station, comprising:
Processor, for determining user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；
Transmitter, for sending configuration message to UE, the configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
Wherein, the UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
First time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
Optionally, the transmitter is also used to send instruction message to the UE；
The instruction message is used to indicate the UE and reserves the third period as free time section；
Wherein, the third period is the previous period of the first time period.
The embodiment of the present invention provides a kind of information transferring method and device, this method comprises: if UE determination meets preset condition, the preset condition includes: that UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and UE sends upstream data by base station instruction in second time period；UE determines UE corresponding SRS parameter information in first time period；UE sends SRS according to corresponding SRS parameter information in first time period；In the prior art, UE in first time period due to not sending SRS by base station instruction, therefore, PUSCH data can not be sent in second time period UE, and CCA is executed, and UE of the embodiment of the present invention sends the SRS of filling in first time period, then no longer needing to execute CCA in second time period, uplink PUSCH data can be directly transmitted, to improve resource utilization.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, the drawings to be used in the description of the embodiments or prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the invention, for those of ordinary skill in the art, without any creative labor, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structural schematic diagram of cell SRS subframe in LAA-LTE system；
Fig. 2 is a kind of flow chart for information transferring method that one embodiment of the invention provides；
Fig. 3 is the frame structure schematic diagram one that one embodiment of the invention provides；
Fig. 4 is the frame structure schematic diagram two that one embodiment of the invention provides；
Fig. 5 is the frame structure schematic diagram three that one embodiment of the invention provides；
Fig. 6 is the frame structure schematic diagram four that one embodiment of the invention provides；
Fig. 7 is the frame structure schematic diagram five that one embodiment of the invention provides；
Fig. 8 is the frame structure schematic diagram six that one embodiment of the invention provides；
Fig. 9 be another embodiment of the present invention provides a kind of information transferring method flow chart；
Figure 10 is a kind of structural schematic diagram for information carrying means that one embodiment of the invention provides；
Figure 11 be another embodiment of the present invention provides a kind of information carrying means structural schematic diagram；
Figure 12 is a kind of structural schematic diagram for information carrying means that yet another embodiment of the invention provides；
Figure 13 is a kind of structural schematic diagram for information carrying means that further embodiment of this invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, shall fall within the protection scope of the present invention.
The present invention is suitable for can the work LTE system in unlicensed spectrum, i.e. LAA-LTE system.Wherein base station can by CA technology by multiple carrier waves (such as unauthorized carrier wave and authorization carrier wave, unauthorized carrier wave and unauthorized carrier wave) it is polymerize, carrier wave allocation scenarios include: 1, authorization frequency spectrum and the deployment of unlicensed spectrum co-sited, frequency spectrum and unlicensed spectrum is authorized to be polymerize by the same base station, the base station will authorize carrier wave to be set as main carrier (Primary Component Carrier, abbreviation PCC), secondary carrier (Secondary Component Carrier, abbreviation SCC) is set by unauthorized carrier wave；2, frequency spectrum and the non-co-sited deployment of unlicensed spectrum are authorized, such as authorization frequency spectrum is deployed in macro base station, unlicensed spectrum is deployed in low power nodes, such as: micro-base station, femto base station, Home eNodeB etc. pass through ideal or nonideal return link connection between macro base station and low power nodes；3, unlicensed spectrum is independently deployed on base station, i.e., base station only uses unlicensed spectrum, without the use of authorizing frequency spectrum.
Network element involved in the embodiment of the present invention includes base station and UE of the work in unlicensed spectrum, and wherein base station includes macro base station, Microcell, micro-base station, femto base station, Home eNodeB etc.；User equipment includes the terminal devices such as mobile phone, laptop, tablet computer.
Before introducing the present invention program, relevant knowledge of the invention is introduced first:
SRS measures up channel for base station.UE, which sends SRS, to be realized by cell SRS subframe, and base station can configure frequency domain information and the time-domain information etc. of cell SRS subframe by high-level signaling.Equally, base station configures UE by high-level signaling and sends code sequence, frequency domain information and time-domain information corresponding to SRS etc.；Wherein, the time-domain information of cell SRS subframe has periodically；Base station is UE configuration Time-domain information have periodicity or aperiodicity, it is periodic situation for the time-domain information that base station is UE configuration, base station can configure period and the time domain offset that UE sends SRS by high-level signaling, wherein SRS is sent on which time-domain position of the time domain offset instruction UE in each period, UE periodically sends SRS according to the configuration, it is acyclic situation for the time-domain information that base station is UE configuration, base station can also configure period and the time domain offset that UE sends SRS by high-level signaling, in addition, base station notifies UE to send SRS by the SRS request (SRS request) in dynamic signaling uplink authorization (UL grant), UE sends a SRS after receiving SRS request on a nearest time-domain position, it should be noted that It is that UE receives a SRS request and only sends a SRS.Period in usual cell SRS subframe for sending SRS is fixed time period, such as: the period can be the last one he Single Carrier-Frequency Division multiple access (Single Carrier-Frequency Division Multiple Access in cell SRS subframe, abbreviation SC-FDMA) symbol, for some cell SRS subframe, if some UE does not send SRS in the cell SRS subframe by base station instruction, so UE is idle state in the period corresponding frequency domain resource, to prevent the UE that other are sent with SRS from interfering.If multiple UE on the same cell SRS send SRS simultaneously, these SRS avoid interference by orthogonal on code sequence, frequency domain, comb teeth domain.As shown in Figure 1, it is 1ms that cell SRS subframe, which configures the period, the period of UE transmission SRS is that the time-domain position of 2ms, UE1 and UE3 transmission SRS are identical, orthogonal by the code sequence realization for configuring different；The time-domain position that UE1 and UE2 sends SRS is different.
In LAA-LTE uplink, access channel sends PUSCH data after UE can use the list time slot CCA or CCA based on rollback, completion to listen to.
The process of single time slot CCA is: the CCA that UE executes a single time slot is listened to, slot length is such as 34us or 43us, by the power received on channel in this time slot compared with energy measuring thresholding, if being higher than thresholding, i.e. channel is busy, then does not access channel, if being lower than thresholding, that is channel idle then immediately accesses channel；Further, if channel be detected result be it is busy, next CCA time slot can be immediately entered, until channel idle or UE abandon sending information.
CCA flow journey based on rollback is: UE one fallback counter of uniformly random generation first between 0~q, wherein q be contention window length, representative value such as [3,7], perhaps [15 63] or [15,1023].UE is persistently listened to using 9us as granularity, if listening to channel idle in a CCA time slot, is subtracted one for counter, is hung up counter if channel is busy, is further continued for down counter when hearing the free time next time.When counter is kept to 0, UE immediately accesses channel.
Fig. 2 is a kind of flow chart for information transferring method that one embodiment of the invention provides, and this method is held Row main body is UE, the application scenarios of this method are as follows: UE meets preset condition, the preset condition includes: that UE does not indicate that SRS is sent in the first time period of current area SRS subframe (can wherein indicate that UE not send SRS in the first time period of current area SRS subframe by base station instruction with " 00 " by base station, " 01 " indicates that UE is indicated to send SRS in the first time period of current area SRS subframe by base station, the embodiment of the present invention is without limitation), and UE sends upstream data by base station instruction in second time period.Wherein, first time period is that SRS corresponds to the period, and second time period is the latter period of first time period, which is the continuous time period adjacent with first time period.Period in the embodiment of the present invention includes that at least one is he Single Carrier-Frequency Division multiple access SC-FDMA symbol.This method specifically includes following process:
S201:UE determines UE corresponding SRS parameter information in first time period；
A kind of situation, UE receives the configuration message of base station transmission, the configuration message is for configuring the SRS that UE is sent in first time period, which includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that UE is sent in first time period；UE determines corresponding one group of SRS parameter information at least one set of SRS parameter information, wherein when at least one set of SRS parameter information is one group of SRS parameter information, then it is corresponding SRS parameter information in first time period that UE, which directly determines this group of SRS parameter information,；When at least one set of SRS parameter information is greater than one group of SRS parameter information, then UE determines that one group of SRS parameter information is corresponding SRS parameter information in first time period at least one SRS parameter information.One group of SRS parameter information includes the information of at least one following parameter: 1, base station is the corresponding code sequence of the SRS in first time period of UE configuration；2, corresponding frequency domain position information when SRS is sent, is used to indicate which section bandwidth the UE occupies；3, corresponding frequency offset information when SRS is sent, the comb teeth domain resource of UE occupancy is used to indicate.Wherein, the frequency domain position of SRS indicates which section bandwidth the UE occupies, i.e. which continuous Physical Resource Block (Resource Block, abbreviation RB), and SRS frequency offset instruction UE occupies which comb teeth in this section of bandwidth；In view of the SRS of a UE is therefore can to configure two UE in same section of bandwidth simultaneously every one subcarrier of a sub- carrier occupancy, the subcarrier of odd indexed and the subcarrier of even number serial number are occupied respectively.In first time period, which is not indicated to send SRS by base station, but base station may indicate that other UE send SRS, and base station is that the two UE are configured with identical SRS parameter.Other are interfered by the SRS that base station indicates that the UE for sending SRS is sent in order to avoid the UE sends SRS in first time period, base station is additionally at least one set of SRS parameter information for sending in first time period of UE configuration, and each group of SRS parameter and other UE for being indicated to send SRS by base station in at least one set SRS parameter information SRS it is orthogonal, at least one in code sequence, frequency domain position, frequency offset including SRS is indicated to send the corresponding SRS parameter information of the UE of SRS orthogonal with other by base station.Such as: the corresponding code sequence of each SRS can be base station according to SRS other UE in first time period to be sent to determine at least one set of SRS parameter information here, such as: the corresponding code sequence of each SRS code sequence corresponding with other UE SRS to be sent is orthogonal at least one SRS parameter information.It should be understood that, configuration message is the SRS parameter that base station is additionally allocated to the UE, it can indicate that the UE is identical in the other times section transmission parameter information of SRS with base station, it can not also be identical, if not identical, then the UE sends SRS using the SRS parameter of configuration message arrangement in first time period, sends the corresponding parameter information of SRS using base station instruction in other times section.It should be understood that base station can be non-orthogonal to multiple UE configuration SRS parameter information by configuring message, it can also be orthogonal；If multiple UE send non-orthogonal SRS signal in same first time period, since these SRS signals are only used for UE busy channel, it are not used in base station and execute channel estimation, therefore not will cause interfering with each other.
Base station is that UE is configured with a SRS parameter information by high-level signaling, it is also that UE is configured with a SRS parameter information by configuring message, it can be different by the SRS parameter information group number carried in the SRS parameter information that carries in high-level signaling and configuration message for UE, identify which group SRS parameter information is for sending SRS in first time period, such as: when UE receives some message, two groups of SRS parameter informations are carried in the message, so UE can determine that this two groups of SRS parameter informations are for sending SRS in first time period, however, when carrying one group of SRS parameter information in the message, UE can not then be identified；Further, base station can carry different marks in high-level signaling and configuration message, such as: it is carried in high-level signaling and is identified as 1, it is carried in configuration message and is identified as 0, so after UE receives message, if read carried in message be identified as 0, then UE determine the SRS parameter information carried in the message be in first time period send SRS；Alternatively, base station can perhaps field UE can identify the SRS parameter information for sending SRS in first time period to setting marker according to the difference of marker or field in high-level signaling and configuration message.Or, UE can identify which group SRS parameter information is for sending SRS in first time period according to the chronological order for receiving message, such as: the SRS parameter information carried in the message being firstly received is not intended to send the SRS parameter information of SRS in first time period, and the SRS parameter information carried in the message received for the second time is then the SRS parameter information for sending SRS in first time period.The embodiment of the present invention to how to identify which SRS parameter information be in first time period send SRS with no restrictions.
Further, above-mentioned configuration message may is that wireless heterogeneous networks (Radio Resource Control, Abbreviation RRC) message；Perhaps the specific control signaling of cell can be carried on Physical Downlink Control Channel or enhance the public search space in Physical Downlink Control Channel；Or the specific control signaling of user, Physical Downlink Control Channel can be carried on or enhance the user search space in Physical Downlink Control Channel, it is possible to further in the UL grant that is carried in user search space or in mixed automatic retransfer instruction physical channel.
Another situation, base station does not send the instruction message for configuring the SRS that UE is sent in first time period to UE, in this case, the code sequence that UE is configured in other times section using base station for the UE, this yard of sequence corresponding SRS parameter information in first time period as UE.It should be understood that, base station passes through high-level signaling for the parameter information of SRS, including code sequence, frequency domain position and frequency offset information configuration to UE, even if UE does not send SRS by base station instruction in first time period, UE also can use this parameter information configuration SRS and send in first time period；But, the first time period of the UE is likely to be another UE of same cell and is indicated to send the period of SRS by base station, if base station is configured with identical SRS parameter information to the two UE, in this case, which sends SRS in first time period and causes interference to the SRS of another UE；But if base station all configures orthogonal SRS parameter information to UE all in cell, i.e., UE indicated to send by base station the corresponding parameter information of SRS transmitted by the period of SRS with the SRS parameter information of other UE be also it is orthogonal, then UE is sent in first time period to interfere other UE.Compared to base station by configuring message as the SRS parameter information in UE configuration first time period, such case base station does not need additional SRS configuration signal expense, but it due to orthogonal SRS resource Limited Number, still is possible to when cell UE number is more to the SRS resource of multiple UE configuration conflicts.
Further, when the time-domain information that base station is UE configuration has periodically, then first time period is not configure the UE SRS corresponding period for the UE in the SRS subframe of current area；When the time-domain information that base station is UE configuration has aperiodicity, then first time period is not configure the UE SRS corresponding period for the UE in the SRS subframe of current area；Or, first time period is to be configured with the UE SRS corresponding period for the UE in the SRS subframe of current area, and base station does not pass through the notice of the SRS request (SRS request) in dynamic signaling uplink authorization (UL grant) UE in the period and sends SRS.
S202:UE sends SRS according to corresponding SRS parameter information in first time period.
UE on the frequency domain position and frequency offset for the frequency domain information instruction that SRS parameter information includes, sends code sequence included by SRS parameter information, the SRS that should be sent in first time period is properly termed as the SRS of filling in first time period.
Below with reference to the corresponding scheme of specific example explanation figure 2, Fig. 3 is the frame structure schematic diagram one that one embodiment of the invention provides, as shown in Figure 3, first sub-frame of uplink is cell SRS subframe, first UE is not indicated to send SRS at first time period (the last one SC-FDMA symbol of the first sub-frame of uplink) by base station, and UE sends upstream data by base station instruction on second time period (first SC-FDMA symbol of the second sub-frame of uplink), therefore, the first UE sends the SRS (SRS code sequence 3 in corresponding diagram 3) of filling in first time period, next without executing CCA in second time period, but directly transmit PUSCH data, the first UE in full text is above-mentioned UE.
The embodiment of the present invention provides a kind of information transferring method, if including: that UE determination meets preset condition, the preset condition includes: that UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and UE sends upstream data by base station instruction in second time period；UE determines UE corresponding SRS parameter information in first time period；UE sends SRS according to corresponding SRS parameter information in first time period；In the prior art, UE in first time period due to not sending SRS by base station instruction, therefore, PUSCH data can not be sent in second time period UE, and CCA is executed, and UE of the embodiment of the present invention sends the SRS of filling in first time period, then no longer needing to execute CCA in second time period, PUSCH data can be directly transmitted, to improve resource utilization.
It should be noted that, above-mentioned preset condition includes: that UE does not send SRS in the first time period of current area SRS subframe by base station instruction, and UE sends upstream data by base station instruction in second time period, i.e. default is indicated to send SRS in first time period by base station there may be the 3rd UE, it is of course also possible to be indicated to send SRS in the first time period by the base station there is no the 3rd UE.
Such as: Fig. 4 is the frame structure schematic diagram two that one embodiment of the invention provides, as shown in Figure 4, first sub-frame of uplink is cell SRS subframe, first UE is not indicated to send SRS at first time period (the last one SC-FDMA symbol of the first sub-frame of uplink) by base station, UE indicates that (first SC-FDMA symbol of the second sub-frame of uplink) sends upstream data in second time period by base station, 3rd UE sends SRS (SRS code sequence 1 in corresponding diagram 4) in first time period, first UE is in this case, filling SRS (SRS code sequence 3 in corresponding diagram 4) is sent on the first UE, the first UE and the 3rd UE no longer needs to execute CCA so in second time period, PUSCH data can be directly transmitted, to improve resource utilization.
Further, information transferring method further include: UE reserves the third period as free time section；It is equivalent to UE and defaults the reserved third period for free time section.Wherein, which is the previous period of first time period.Fig. 5 is the frame structure schematic diagram three that one embodiment of the invention provides, such as Shown in Fig. 5, the first UE reserves the third period.Default situations i.e. default there may be the 2nd UE before the third period not sent upstream data, UE by base station instruction upstream data is sent in second time period, therefore, reserve the third period the purpose of be to enable the 2nd UE that can carry out CCA on the third period.And since the first UE fills SRS in first time period, a CCA can be carried out for the 2nd UE less, improved resource utilization.
Alternatively, the first UE receives the instruction message that base station is sent；First UE reserves the third period according to configuration message as free time section；Wherein, the first UE, which receives instruction message, can determine there may be the 2nd UE the not sent upstream data before the third period, and the 2nd UE sends upstream data by base station instruction in second time period；Such as " 00 " can be used to indicate in configuration message, and when not needing the reserved third period is free time section, " 01 " can be used to indicate.Fig. 6 is the frame structure schematic diagram four that one embodiment of the invention provides, as shown in Figure 6, due to there are the 2nd UE before the third period not sent upstream data, and upstream data is sent in second time period by base station instruction, therefore, first UE reserves the third period, it is therefore an objective to enable the 2nd UE that can carry out CCA on the third period.And since the first UE fills SRS in first time period, a CCA can be carried out for the 2nd UE less, improved resource utilization.
In the prior art, no matter what kind of situation it is, it is free time section that first UE, which only reserves first time period, when current subframe is cell SRS subframe, it would be possible that there are the 2nd UE to carry out CCA on the third period, this reserved first time period, which will lead to the 2nd UE, can not carry out CCA, i.e., can not seize channel, to which PUSCH data can not be sent, communication reliability is reduced.And information transferring method provided in an embodiment of the present invention is determined when current subframe is cell SRS subframe, then defaults the reserved third period；Alternatively, the third period is then reserved, to improve communication reliability when the configuration message that the base station for receiving base station transmission is sent.
It should be noted that the embodiment of the present invention also provides following several information transferring methods:
If the first UE determines that sub-frame of uplink is non-cell SRS subframe, and the first UE receives the instruction message of base station transmission, the instruction message be used to indicate the first UE set aside some time section or be used to indicate the first UE reserve first time period, it is free time section that so the first UE, which reserves first time period, Fig. 7 is the frame structure schematic diagram five that one embodiment of the invention provides, as shown in Figure 7, first sub-frame of uplink is non-cell SRS subframe, it is free time section that then the first UE, which reserves first time period, and free time section is mainly used for the 2nd UE and executes CCA in first time period.
If the first UE determines that sub-frame of uplink is cell SRS subframe, and the first UE is indicated by base station SRS is sent in first time period, then the first UE directly sends SRS in first time period, and Fig. 8 is the frame structure schematic diagram six that one embodiment of the invention provides, as shown in figure 8, the first UE directly sends SRS in first time period.
Further, it is all that the first UE defaults or the first UE receives the instruction reserved third period of base station or fills SRS in first time period in the above method, however, it can also be that base station directly determines whether to reserve the third period and whether fill SRS in first time period, after determination, base station directly sends instruction message to the first UE, which is used to indicate the first UE whether reserved third period and whether fills SRS in first time period.
Further, it is provided according to the standard of LTE system downlink transfer, energy measuring thresholding is inversely proportional with signal transmission power, i.e., signal transmission power is lower, and energy measuring thresholding is higher, otherwise signal transmission power is higher, and energy measuring thresholding is lower.By taking 20MHz bandwidth as an example, specific relational expression are as follows:
XThresh_max=max (- 72dBm, min (Tmax,(Tmax-TA+(PH-PTX)))),
Wherein XThresh_maxIndicate energy measuring thresholding, Tmax(dBm)=- 75dBm/MHz+10log10 (BW), TA=10dB, PH=23dBm is peak signal transmission power reference value, PTXFor actual signal transmission power.For the uplink in LAA-LTE system, this rule can also be continued to use, energy measuring thresholding is inversely proportional with signal transmission power.In LAA-LTE system, the transmission power spectrum density of SRS is defined as PUSCH power spectral density and adds a fixed offset value, but the occupied bandwidth of SRS is different from PUSCH, on the one hand, as Physical Resource Block (the Physical Resource Block for sending SRS occupancy, abbreviation PRB) number be greater than PUSCH occupy PRB number when, send SRS power can be more than send PUSCH data power.In view of in the present invention, it is as filling signal busy channel that UE, which sends SRS in cell SRS subframe, rather than detection is received for base station side, therefore when the power for sending SRS can be more than to send the power of PUSCH data, the mean power of SRS and the PUSCH data of continuous uplink is higher than the power for sending PUSCH data, will lead to the reduction of energy measuring thresholding.In such a case, it is possible to which the transmission power spectrum density of SRS is reduced, keep the transmission power of SRS identical as the transmission power of PUSCH data, so that the energy measuring thresholding of uplink still maintains constant after the previously sent SRS signal of PUSCH data.On the other hand, when send SRS occupy PRB number be less than PUSCH data occupy PRB number when or SRS transmission power be lower than PUSCH data transmission power, then do not need adjustment SRS transmission power spectrum density.
Fig. 9 be another embodiment of the present invention provides a kind of information transferring method flow chart, the executing subject of this method is base station, and this method includes following process:
S901: base station determines UE in the corresponding at least one set SRS parameter information of first time period；
S902: base station sends configuration message to UE, which includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that UE is sent in the first time period.
Wherein, UE meets preset condition, which includes: that UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and UE sends upstream data by base station instruction in second time period；First time period is that SRS corresponds to the period, and second time period is the latter period of first time period.
Specifically, which includes: the corresponding code sequence of the SRS in first time period and/or send corresponding frequency domain information when SRS that base station is UE configuration, which includes frequency domain position and/or frequency offset (i.e. comb teeth domain resource).Interference is formed in order to avoid the UE in first time period and other UE sends SRS, base station is that the corresponding code sequence of SRS that UE is configured and/or frequency domain information code sequence corresponding with the SRS of other UE and/or frequency domain information are orthogonal, such as: the corresponding code sequence of each SRS can be base station according to SRS other UE in first time period to be sent to determine at least one set of SRS parameter information here, such as: the corresponding code sequence of each SRS code sequence corresponding with other UE SRS to be sent is orthogonal at least one SRS parameter information.
Further, above-mentioned configuration message may is that RRC information；Perhaps the specific control signaling of cell can be carried on Physical Downlink Control Channel or enhance the public search space in Physical Downlink Control Channel；Or the specific control signaling of user, Physical Downlink Control Channel can be carried on or enhance the user search space in Physical Downlink Control Channel, it is possible to further in the UL grant that is carried in user search space or in mixed automatic retransfer instruction physical channel.
The embodiment of the present invention provides a kind of information transferring method, comprising: base station determines UE in the corresponding at least one set SRS parameter information of first time period；Base station sends configuration message to UE, the configuration message includes at least one set SRS parameter information, at least one set SRS parameter information is for configuring the SRS that UE is sent in the first time period, the SRS of transmission is properly termed as filling SRS, base station is not that all SRS parameter informations are sent to UE, but at least one set of SRS parameter information sent to UE all can be used for configuration filling SRS's, so that UE only needs to determine one group of SRS parameter information at least one set of SRS parameter information, determine that one group of SRS parameter information efficiency wants high relative in all SRS parameter informations.
Further, this method further include:
Base station sends instruction message to UE；Instruction message is used to indicate UE and reserves the third period as the free time Period；Wherein, the third period is the previous period of first time period.
By way of this transmission instruction message, so that it is free time section that UE, which only receives instruction message just to reserve the third period, when UE no indication is received message, then it is free time section that UE, which is not necessarily to the reserved third period, to achieve the effect that save resource.
Figure 10 is a kind of structural schematic diagram for information carrying means that one embodiment of the invention provides, and described device is user equipment (UE), and as shown in Figure 10, which comprises determining that module 1001 and sending module 1002；
If the determination of determining module 1001 meets preset condition, the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and the UE sends upstream data by base station instruction in second time period；The determining module 1001 is also used to determine the UE corresponding SRS parameter information in the first time period；
The sending module 1002 is used to send SRS in the first time period according to the corresponding SRS parameter information；Wherein, the first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
The information carrying means of the embodiment of the present invention can be used for executing the corresponding method of Fig. 2 and implement technical solution, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, described device further include: receiving module 1003；The receiving module 1003, for receiving the configuration message of base station transmission, the configuration message includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that the UE is sent in the first time period；The determining module 1001 is specifically used for determining the corresponding SRS parameter information in at least one set SRS parameter information.
Optionally, which further includes reserved module 1004；The reserved module 1004 is free time section for reserving the third period；Wherein, the third period is the previous period of the first time period.
Further, receiving module 1003 are also used to receive the instruction message that the base station is sent；The reserved module 1004 is specifically used for reserving the third period according to the instruction message for free time section.
Wherein, it is he Single Carrier-Frequency Division multiple access SC-FDMA symbol that the period, which includes at least one,.
Figure 11 be another embodiment of the present invention provides a kind of information carrying means structural schematic diagram, described device is base station, comprising: determining module 1101, for determining user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；Sending module 1102 is used for the UE Configuration message is sent, the configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
Wherein, the UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
The first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
The information carrying means of the embodiment of the present invention can be used for executing the corresponding method of Fig. 9 and implement technical solution, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, the sending module 1102 is also used to send instruction message to the UE；The instruction message is used to indicate the UE and reserves the third period as free time section；Wherein, the third period is the previous period of the first time period.
Figure 12 is a kind of structural schematic diagram for information carrying means that yet another embodiment of the invention provides, and described device is user equipment (UE), comprising: processor 1201 and transmitter 1202；
If the determination of processor 1201 meets preset condition, the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and the UE sends upstream data by base station instruction in second time period；The processor 1201 is also used to determine the UE corresponding SRS parameter information in the first time period；
The transmitter 1202, for sending SRS in the first time period according to the corresponding SRS parameter information；Wherein, the first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
The information carrying means of the embodiment of the present invention can be used for executing the corresponding method of Fig. 2 and implement technical solution, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, described device further include: receiver 1203；The receiver 1203 is used to receive the configuration message of base station transmission, and the configuration message includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that the UE is sent in the first time period；The processor 1201 is specifically used for determining the corresponding SRS parameter information in at least one set SRS parameter information.
Optionally, the processor 1201 is also used to the reserved third period as free time section；Wherein, the third period is the previous period of the first time period.
Further, receiver 1203 are also used to receive the instruction message that the base station is sent；The processor 1201 is specifically used for reserving the third period according to the instruction message for free time section.
The period includes that at least one is he Single Carrier-Frequency Division multiple access SC-FDMA symbol.
Figure 13 is a kind of structural schematic diagram for information carrying means that further embodiment of this invention provides, and described device is base station, comprising: processor 1301, for determining user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；Transmitter 1302, for sending configuration message to the UE, the configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
Wherein, the UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
The first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
The information carrying means of the embodiment of the present invention can be used for executing the corresponding method of Fig. 9 and implement technical solution, and it is similar that the realization principle and technical effect are similar, and details are not described herein again.
Optionally, the transmitter 1302 is also used to send instruction message to the UE；The instruction message is used to indicate the UE and reserves the third period as free time section；Wherein, the third period is the previous period of the first time period.
Those of ordinary skill in the art will appreciate that: realizing all or part of the steps of above-mentioned each method embodiment, this can be accomplished by hardware associated with program instructions.Program above-mentioned can be stored in a computer readable storage medium.When being executed, execution includes the steps that above-mentioned each method embodiment to the program；And storage medium above-mentioned includes: the various media that can store program code such as ROM, RAM, magnetic or disk.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；Although present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it is still possible to modify the technical solutions described in the foregoing embodiments, or equivalent substitution of some or all of the technical features；And these are modified or replaceed, the range for technical solution of various embodiments of the present invention that it does not separate the essence of the corresponding technical solution.

Claims (21)

  1. A kind of information transferring method characterized by comprising
    If user equipment (UE), which determines, meets preset condition, the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and the UE sends upstream data by base station instruction in second time period；
    The UE determines the UE corresponding SRS parameter information in the first time period；
    The UE sends SRS in the first time period according to the corresponding SRS parameter information；
    Wherein, the first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
  2. The method according to claim 1, wherein the UE determines the UE corresponding SRS parameter information in the first time period, comprising:
    The UE receives the configuration message that base station is sent, and the configuration message includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
    The UE determines the corresponding SRS parameter information in at least one set SRS parameter information.
  3. Method according to claim 1 or 2, which is characterized in that further include:
    The UE reserves the third period as free time section；
    Wherein, the third period is the previous period of the first time period.
  4. According to the method described in claim 3, it is characterized in that, it is free time section that the UE, which reserves the third period, comprising:
    The UE receives the instruction message that the base station is sent；
    The UE reserves the third period according to the instruction message as free time section.
  5. Method according to claim 1-4, which is characterized in that the period includes that at least one is he Single Carrier-Frequency Division multiple access SC-FDMA symbol.
  6. A kind of information transferring method characterized by comprising
    Base station determines user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；
    The base station sends configuration message to the UE, and the configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
    Wherein, the UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
    The first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
  7. According to the method described in claim 6, it is characterized by further comprising:
    The base station sends instruction message to the UE；
    The instruction message is used to indicate the UE and reserves the third period as free time section；
    Wherein, the third period is the previous period of the first time period.
  8. A kind of information carrying means, which is characterized in that described device is user equipment (UE), comprising: determining module and sending module；
    If the determining module determination meets preset condition, the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and the UE sends upstream data by base station instruction in second time period；
    The determining module is also used to determine the UE corresponding SRS parameter information in the first time period；
    The sending module, for sending SRS in the first time period according to the corresponding SRS parameter information；
    Wherein, the first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
  9. Device according to claim 8, which is characterized in that described device further include: receiving module；
    The receiving module, for receiving the configuration message of base station transmission, the configuration message includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
    The determining module is specifically used for determining the corresponding SRS parameter information in at least one set SRS parameter information.
  10. Device according to claim 8 or claim 9, which is characterized in that further include: reserved module；
    The reserved module is free time section for reserving the third period；
    Wherein, the third period is the previous period of the first time period.
  11. Device according to claim 10, which is characterized in that
    Receiving module is also used to receive the instruction message that the base station is sent；
    The reserved module is specifically used for reserving the third period according to the instruction message for free time section.
  12. According to the described in any item devices of claim 8-11, which is characterized in that the period includes that at least one is he Single Carrier-Frequency Division multiple access SC-FDMA symbol.
  13. A kind of information carrying means, which is characterized in that described device is base station, comprising:
    Determining module, for determining user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；
    Sending module, for sending configuration message to the UE, the configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
    Wherein, the UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
    The first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
  14. Device according to claim 13, which is characterized in that
    The sending module is also used to send instruction message to the UE；
    The instruction message is used to indicate the UE and reserves the third period as free time section；
    Wherein, the third period is the previous period of the first time period.
  15. A kind of information carrying means, which is characterized in that described device is user equipment (UE), comprising: processor and transmitter；
    If the processor, which determines, meets preset condition, the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of detection reference signal cell SRS subframe, and the UE sends upstream data by base station instruction in second time period；
    The processor is also used to determine the UE corresponding SRS parameter information in the first time period；
    The transmitter, for sending SRS in the first time period according to the corresponding SRS parameter information；
    Wherein, the first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
  16. Device according to claim 15, which is characterized in that described device further include: receiver；
    The receiver, for receiving the configuration message of base station transmission, the configuration message includes at least one set SRS parameter information, and at least one set SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
    The processor is specifically used for determining the corresponding SRS parameter information in at least one set SRS parameter information.
  17. Device according to claim 15 or 16, which is characterized in that
    The processor is also used to the reserved third period as free time section；
    Wherein, the third period is the previous period of the first time period.
  18. Device according to claim 17, which is characterized in that
    Receiver is also used to receive the instruction message that the base station is sent；
    The processor is specifically used for reserving the third period according to the instruction message for free time section.
  19. The described in any item devices of 5-18 according to claim 1, which is characterized in that the period includes that at least one is he Single Carrier-Frequency Division multiple access SC-FDMA symbol.
  20. A kind of information carrying means, which is characterized in that described device is base station, comprising:
    Processor, for determining user equipment (UE) in corresponding at least one detection reference signal SRS parameter information of first time period；
    Transmitter, for sending configuration message to the UE, the configuration message includes at least one SRS parameter information, at least one described SRS parameter information is for configuring the SRS that the UE is sent in the first time period；
    Wherein, the UE meets preset condition, and the preset condition includes: that the UE does not send SRS by base station instruction in the first time period of current area SRS subframe, and the UE sends upstream data by base station instruction in second time period；
    The first time period is that SRS corresponds to the period, and the second time period is the latter period of the first time period.
  21. Device according to claim 20, which is characterized in that
    The transmitter is also used to send instruction message to the UE；
    The instruction message is used to indicate the UE and reserves the third period as free time section；
    Wherein, the third period is the previous period of the first time period.
CN201680083079.6A 2016-03-31 2016-03-31 Information transferring method and device Pending CN108702747A (en)

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