CN103391621A - Method and device for processing uplink demodulation reference signal - Google Patents

Method and device for processing uplink demodulation reference signal Download PDF

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CN103391621A
CN103391621A CN2012101464095A CN201210146409A CN103391621A CN 103391621 A CN103391621 A CN 103391621A CN 2012101464095 A CN2012101464095 A CN 2012101464095A CN 201210146409 A CN201210146409 A CN 201210146409A CN 103391621 A CN103391621 A CN 103391621A
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cyclic shift
quadrature mask
reference signal
demodulation reference
uplink demodulation
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CN103391621B (en
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弓宇宏
孙云锋
李书鹏
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ZTE Corp
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Abstract

The invention provides a method and a device for processing an uplink demodulation reference signal. The method comprises that a base station is used for configuring uplink-related downlink control information which is sent to a user terminal: at least one piece of the following information is indicated to the user terminal in a cyclic shift/orthogonal mask area or a cyclic shift/orthogonal mask area which is expanded by 1 bit in an information format of the uplink-related downlink control information: a cyclic shift of the uplink demodulation reference signal and an orthogonal mask corresponding to the cyclic shift; a cyclic shift sequence hopping pattern of the uplink demodulation reference signal or parameters which are used for determining the cyclic shift sequence hopping pattern; a basic sequence of the uplink demodulation reference signal or parameters which are used for determining the basic sequence; the base station sends the configured uplink-related downlink control information to the user terminal. By the aid of the method and the device, the problems that semi-static cell-based exclusive uplink demodulation reference signal configuration in the prior art can not satisfy the requirements and system performance is affected due to the fact that the configuration of the hopping pattern to the uplink demodulation reference signal configuration is not flexible are solved, so that the available cyclic shift quantity is expanded, the hopping pattern and the basic sequence are configured flexibly, and the system performance is improved.

Description

Uplink demodulation reference signal processing method and device
Technical field
The present invention relates to the communications field, in particular to a kind of uplink demodulation reference signal processing method and device.
Background technology
Long evolving system (Long Term Evolution, referred to as LTE) uplink physical channel comprise Physical Random Access Channel (Physical Random Access Channel, referred to as PRACH), Physical Uplink Shared Channel (Physical Uplink Shared Channel, referred to as PUSCH), Physical Uplink Control Channel (Physical Uplink Control Channel, referred to as PUCCH).Uplink scheduling information (Uplink Scheduling Information) to PUSCH passes through Physical Downlink Control Channel (Physical Downlink Control Channel by base station, referred to as PDCCH) send to target terminal user (User Equipment, referred to as UE).Uplink scheduling information comprises: resource distribution, modulation and encoding scheme, uplink demodulation reference signal (Demodulation Reference Signal that Physical Uplink Shared Channel is relevant, referred to as DMRS) the control informations such as cyclic shift (Cyclic Shift, referred to as CS).
In the LTE system, Physical Uplink Shared Channel adopts the single antenna port transmission.A system-frame (frame) comprises 10 subframes (subframe), and each subframe comprises 2 time slots (slot).Fig. 1 is the schematic diagram according to the regular circulation prefix in a time slot of correlation technique, as shown in Figure 1, for regular circulation prefix (Normal cyclic prefix, referred to as Normal CP), each time slot is comprised of 6 data symbols and 1 demodulated reference signal.Fig. 2 is the schematic diagram according to the extended cyclic prefix in a time slot of correlation technique, as shown in Figure 2, for extended cyclic prefix (Extended cyclic prefix, referred to as Extended CP), each time slot is comprised of 5 data symbols and 1 demodulated reference signal.
Demodulated reference signal DMRS consists of a sequence on frequency domain, and this sequence is a cyclic shift of reference signal sequence.For randomize inter-cell interference, the reference signal sequence of demodulated reference signal configures according to base station, can realize that timeslot-based sequence redirect (Sequence hopping) or sequence set redirect (Sequence Group Hopping is called for short SGH) also can be called the SGH mode of time slot redirect.That is, according to base station configuration, subscriber equipment demodulated reference signal on two time slots in a subframe is different, according to certain redirect pattern, changes with time slot in a system-frame.
At time slot n sIn, the cyclic shift amount α of demodulated reference signal is: α=2 π n cs/ 12, wherein,
Figure BDA00001631495700011
In a radio frames, n cs=0,1 ..., 19;
Figure BDA00001631495700012
By the higher level parameters configuration,
Figure BDA00001631495700013
By uplink scheduling information configuration, n PN(n s) by pseudo-random generator, generated, be along with time slot n sThe parameter that changes, specifically be expressed as
Figure BDA00001631495700014
Once, initial condition is each radio frames initialization of pseudo-random generator
Figure BDA00001631495700015
This initialization value is relevant with described residential quarter ID, is the proprietary parameter in residential quarter.
Uplink scheduling information is carried on Physical Downlink Control Channel, and (Downlink Control Information format, referred to as DCI format) sends to target UE by base station with certain descending control information format.In the LTE system, descending control information format is divided into following several: DCI format 0,1,1A, 1B, 1C, 1D, 2,2A, 2B, 2C, 3,3A etc., wherein, DCI format 0 comprises uplink scheduling information, is used to indicate the scheduling of Physical Uplink Shared Channel PUSCH.
The long evolving system of evolution (being called for short the LTE-A system) is the evolution system of future generation of LTE system.In the LTE-A system, Physical Uplink Shared Channel can adopt the single antenna port transmission, also can adopt many antenna port transmission.Fig. 3 is the schematic diagram of the transmitting terminal base band signal process of the LTE-A system of the correlation technique Physical Uplink Shared Channel that adopts many antenna ports transmission, as shown in Figure 3, when many antenna port transmission, the LTE-A system is supported based on one or two code word (Codeword, referred to as CW) spatial reuse, the corresponding transmission block (Transport Block, referred to as TB) of each code word.Fig. 4 is the mapping schematic diagram that the up code word of the LTE-A system of correlation technique arrives layer, and as shown in Figure 4, code word will further be mapped to layer (layer), and each code word is mapped as one deck or two layer data.
LTE-A adopts based on code book (Codebook, be called again code book) Linear Precoding (Precoding), precoding technique is that a kind of channel condition information (Channel Status Information, referred to as CSI) that utilizes carries out preliminary treatment to improve the technology of multiaerial system performance at transmitting terminal to signal.A kind of approach that transmitting terminal obtains CSI is the feedback by receiving terminal.In order to reduce feedback overhead, the general mode that adopts is to preserve identical code book at receiving terminal with transmitting terminal.Receiving terminal is according to current channel conditions, the pre-coding matrix that select to be fit in code book and with its index value (Precoding Matrix Index in how much, referred to as PMI) feed back to transmitting terminal, transmitting terminal finds pre-coding matrix according to the pre-coding matrix index of feedback, and transmitted signal is carried out precoding.The Mathematical Modeling of data precoding is y=HWs+n, and wherein, y is for receiving signal phasor, and H is channel coefficient matrix, and W is pre-coding matrix, and s is signal phasor, and n is noise vector.
In the LTE-A system, when Physical Uplink Shared Channel adopted many antenna port transmission, the DMRS of each layer data equally carried out precoding with each layer data.And the demodulated reference signal of different layers data, comprise the demodulated reference signal to the same user's of alone family multi-input multi-output system (SU-MIMO) multi-layer data, and the demodulated reference signal of the multi-layer data of a plurality of subscriber equipmenies of multiuser mimo system (MU-MIMO), by using different demodulated reference signal cyclic shifts (CS) and/or quadrature mask (Orthogonal Cover Code, referred to as OCC) carry out orthogonalization, to distinguish the multiplexing different layers data of user's space or to distinguish different users.Wherein, quadrature mask OCC is [+1 ,+1] and [+1 ,-1], acts on the demodulated reference signal on interior two time slots of a subframe (Subframe) (Slot).
At present, in the Standard Edition of 3GPP appointment, the version of LTE standard is the 8th edition (Release 8) and the 9th edition (Release 9), the version of LTE-A standard is the 10th edition (Release 10), be abbreviated as respectively Rel-8, Rel-9 and Rel-10, the LTE-A standard may also comprise later release, such as Rel-11.At present in the Rel-10 version, demodulated reference signal cyclic shift CS/ quadrature mask OCC information for scheduling PUSCH can be indicated by DCI format 0 and DCI format 4 in base station, and table 1 is the cyclic shift zone of up associated DC I format in correlation technique [w (λ)(0) w (λ)(1)] mapping table, as shown in table 1.
Table 1
Figure BDA00001631495700031
When using quadrature mask OCC to demodulated reference signal orthogonalization, joint-detection need to be carried out to the demodulated reference signal on two time slots in a subframe in base station, thus require a subscriber equipment in a subframe in two time slots the demodulated reference signal on two time slots must be the same.In this case, can not use the SGH mode of time slot redirect in the LTE system.But for this randomize inter-cell interference as far as possible, the SGH mode of subframe redirect has been proposed in correlation technique.Namely, configure according to base station, subscriber equipment demodulated reference signal on two time slots in a subframe is the same, and the demodulated reference signal in a system-frame on each subframe is different, according to certain redirect pattern, changes with subframe in a system-frame.
In the LTE-A system, in order to improve the transmission rate of cell edge, 3GPP releases coordinated multipoint transmission (Coordinated Multi-Point Transmission and Reception, referred to as CoMP) technology.The cooperative multipoint transmission technology is to utilize the transmitting antenna cooperation transmission of a plurality of residential quarters to realize higher capacity and the transmitting of cell edge place wireless link, can effectively solve the cell edge interference problem.Fig. 5 is the schematic diagram of the down collaboration multi-point of correlation technique, as shown in Figure 5, descending CoMP can be divided into two classes: Combined Treatment/joint transmission (Joint Processing/Joint Transmission, referred to as JP/JT) and cooperative scheduling/wave beam forming (Coordinated Scheduling/Beamforming, referred to as CS/CB).In JT, data send simultaneously from a plurality of residential quarters, and transmission data, scheduling and channel condition information only carry out between a plurality of launch points in collaboration set alternately; And in CS/CB, only have Serving cell to send data to UE, scheduling and Beamforming information are mutual in the CoMP collaboration set.The different residential quarter that participates in transmission or cooperation just forms a collaboration set, and for some UE, it is Serving cell that 1 residential quarter is arranged in collaboration set, and remaining residential quarter is cooperation cell.
Fig. 6 is the schematic diagram of the uplink coordinated multicast communication of correlation technique, as shown in Figure 6, UE1 sends data to base station or remote wireless terminal (the Remote Radio Heads of Serving cell and cooperation cell, referred to as RRH), the data that cooperation cell and Serving cell will receive again continue to screw up and reception ﹠ disposal.According to present up DMRS signaling configuration method, the sequence set of up DMRS is numbered by u=(f gh(n s)+f ss) the mod30 decision, wherein organize redirect pattern (group-hipping pattern) f gh(n s) determined sequence displacement pattern (sequence-shift pattern) f by residential quarter ID ssBe divided into again two classes, for PUCCH,
Figure BDA00001631495700032
Be defined as: For PUSCH,
Figure BDA00001631495700034
Be defined as:
Figure BDA00001631495700035
Δ wherein ss∈ 0,1 ..., 29}, by high-rise RRC signal deployment, is the parameter of residential quarter proprietary (cell-specific).Therefore the sequence set of up DMRS numbering is determined by the proprietary parameter in residential quarter of residential quarter ID and high-level signaling configuration, is the parameter of semi-static configuration.
After the multipoint cooperative technology was introduced, the proprietary uplink demodulation reference signal configuration in traditional residential quarter based on semi-static can not meet the demands, and in addition, the uplink demodulation reference signal configuration is also dumb to the configuration of saltus step pattern, has affected systematic function.
Summary of the invention
The invention provides a kind of uplink demodulation reference signal processing method and device, can not meet the demands based on the proprietary uplink demodulation reference signal configuration in semi-static residential quarter to solve at least prior art, in addition, the uplink demodulation reference signal configuration is also dumb to the configuration of saltus step pattern, has affected the problem of systematic function.
According to an aspect of the present invention, a kind of uplink demodulation reference signal processing method is provided, has comprised: the upper line correlation Downlink Control Information that base station subtend user terminal sends is configured: the cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the following information of described user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of described cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of described basic sequence; The described upper line correlation Downlink Control Information that described base station will configure sends to described user terminal.
Preferably, cyclic shift after expansion 1 bit on described in the information format of line correlation Downlink Control Information/quadrature mask zone comprises to cyclic shift and the corresponding quadrature mask thereof of described user terminal indication uplink demodulation reference signal, and part or all of cyclic shift that the cyclic shift after described expansion 1 bit/quadrature mask zone increases/quadrature mask index is used for to cyclic shift and corresponding quadrature mask thereof of described user terminal indication uplink demodulation reference signal.
Preferably, the part of the cyclic shift that cyclic shift/quadrature mask zone increases after described expansion 1 bit/quadrature mask index is half index in the cyclic shift that increases/quadrature mask index.
Preferably, relation between cyclic shift value between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift after described expansion 1 bit/quadrature mask zone increases/indicated user terminal of quadrature mask index meets: nDMRS, λ (2)=(nDMRS, 0 (2)+Δ λ) mod 12, wherein λ=0,1,2,3, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of the cyclic shift of described increase/quadrature mask index, the cyclic shift value of 0 (2) difference corresponding 7,5,1,11.
Preferably, the relation of the quadrature mask between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after described expansion 1 bit/indicated user terminal of quadrature mask index meet comprise following one of at least: the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer; Part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, and rest layers is different from the quadrature mask of the 0th layer; Wherein, described quadrature mask is [1 1] or [1-1].
Preferably, part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, rest layers and different comprising of quadrature mask of the 0th layer: the quadrature mask of the first half in all layers of uplink demodulation reference signal is identical, and the quadrature mask of the latter half in all layers is different.
preferably, cyclic shift after cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone is to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and cyclically shifted sequences saltus step pattern or be used for determining that the parameter of described cyclically shifted sequences saltus step pattern comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and cyclic shift saltus step pattern or is used for determining the parameter of described cyclically shifted sequences saltus step pattern.
method according to claim 1, it is characterized in that, cyclic shift after cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone is to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and basic sequence or be used for determining that the parameter of described basic sequence comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and basic sequence or is used for determining the parameter of described basic sequence.
Preferably, the whole index in the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided and comprised: described whole index are divided into two parts or four parts.
preferably, cyclic shift after cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone is to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or being used for definite described basic sequence comprise: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or is used for determining described basic sequence.
Preferably, the whole index in the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided and comprised: described whole index are divided into two parts or four parts.
Preferably, also comprise that described base station receives the described uplink demodulation reference signal of described user terminal according to the described upper line correlation Downlink Control Information transmission of configuration.
According to a further aspect in the invention, a kind of uplink demodulation reference signal processing unit is provided, comprise: be arranged in base station, comprise: configuration module is used for the upper line correlation Downlink Control Information that the subtend user terminal sends and is configured: on described the cyclic shift of the information format of line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the following information of described user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of described cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of described basic sequence; Sending module, the described upper line correlation Downlink Control Information that is used for configuring sends to described user terminal.
Preferably, described configuration module comprises the first configuration module, be used for being configured in cyclic shift after expansion 1 bit of information format of described upper line correlation Downlink Control Information/quadrature mask zone and comprise to cyclic shift and the corresponding quadrature mask thereof of described user terminal indication uplink demodulation reference signal, part or all of cyclic shift that the cyclic shift after described expansion 1 bit/quadrature mask zone increases/quadrature mask index is used for to cyclic shift and corresponding quadrature mask thereof of described user terminal indication uplink demodulation reference signal.
Preferably, described the first configuration module, the relation that is used for configuring between the cyclic shift value between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after described expansion 1 bit/indicated user terminal of quadrature mask index meets: nDMRS, λ (2)=(nDMRS, 0 (2)+Δ λ) mod 12, λ=0 wherein, 1,2,3, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of the cyclic shift of described increase/quadrature mask index, the cyclic shift value of 0 (2) difference corresponding 7,5,1,11.
Preferably, described the first configuration module, the relation that also is used for configuring the quadrature mask between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after described expansion 1 bit/indicated user terminal of quadrature mask index meet comprise following one of at least: the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer; Part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, and rest layers is different from the quadrature mask of the 0th layer; Wherein, described quadrature mask is [1 1] or [1-1].
preferably, described configuration module comprises the second configuration module, be used for being configured in cyclic shift after the cyclic shift of the information format of described upper line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and cyclically shifted sequences saltus step pattern or be used for determining that the parameter of described cyclically shifted sequences saltus step pattern comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and cyclic shift saltus step pattern or is used for determining the parameter of described cyclically shifted sequences saltus step pattern.
preferably, described configuration module comprises the 3rd configuration module, be used for being configured in cyclic shift after the cyclic shift of the information format of described upper line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and basic sequence or be used for determining that the parameter of described basic sequence comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and basic sequence or is used for determining the parameter of described basic sequence.
preferably, described configuration module comprises the 4th configuration module, be used for being configured in cyclic shift after the cyclic shift of the information format of described upper line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or being used for definite described basic sequence comprise: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or is used for determining described basic sequence.
Preferably, also comprise receiver module, be used for receiving the described uplink demodulation reference signal of described user terminal according to the described upper line correlation Downlink Control Information transmission of configuration.
By the present invention, the upper line correlation Downlink Control Information that adopts base station subtend user terminal to send is configured: the cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the following information of described user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of this cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of this basic sequence; The described upper line correlation Downlink Control Information that described base station will configure sends to described user terminal, having solved prior art can not meet the demands based on the proprietary uplink demodulation reference signal configuration in semi-static residential quarter, in addition, the uplink demodulation reference signal configuration is also dumb to the configuration of saltus step pattern, affected the problem of systematic function, and then reached expansion available cycles amount of displacement, and realized saltus step pattern and basic sequence flexible configuration, the effect of systematic function improved.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not form improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the regular circulation prefix in a time slot of correlation technique;
Fig. 2 is the schematic diagram according to the extended cyclic prefix in a time slot of correlation technique;
Fig. 3 is the schematic diagram of the transmitting terminal base band signal process of the LTE-A system of the correlation technique Physical Uplink Shared Channel that adopts many antenna ports transmission;
Fig. 4 is the mapping schematic diagram that the up code word of the LTE-A system of correlation technique arrives layer;
Fig. 5 is the schematic diagram of the down collaboration multi-point of correlation technique;
Fig. 6 is the schematic diagram of the uplink coordinated multicast communication of correlation technique;
Fig. 7 is the flow chart according to the uplink demodulation reference signal processing method of the embodiment of the present invention;
Fig. 8 is the structured flowchart according to the uplink demodulation reference signal processing unit of the embodiment of the present invention;
Fig. 9 is the structured flowchart according to the configuration module one in the uplink demodulation reference signal processing unit of the embodiment of the present invention;
Figure 10 is the structured flowchart according to the configuration module two in the uplink demodulation reference signal processing unit of the embodiment of the present invention;
Figure 11 is the structured flowchart according to the configuration module three in the uplink demodulation reference signal processing unit of the embodiment of the present invention;
Figure 12 is the structured flowchart according to the configuration module four in the uplink demodulation reference signal processing unit of the embodiment of the present invention;
Figure 13 is the structured flowchart of uplink demodulation reference signal processing unit according to the preferred embodiment of the invention.
Embodiment
Hereinafter with reference to accompanying drawing, also describe in conjunction with the embodiments the present invention in detail.Need to prove, in the situation that do not conflict, embodiment and the feature in embodiment in the application can make up mutually.
A kind of uplink demodulation reference signal processing method is provided in the present embodiment, and Fig. 7 is the flow chart according to the uplink demodulation reference signal processing method of the embodiment of the present invention, and as shown in Figure 7, this flow process comprises the steps:
The upper line correlation Downlink Control Information that step S702, base station subtend user terminal send is configured: the cyclic shift in the information format of upper line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the following information of user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of this cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of basic sequence;
Step S704, the upper line correlation Downlink Control Information that base station will configure sends to user terminal.
Pass through above-mentioned steps, by expanding 1 bit or to saltus step pattern or the indication of basic sequence, realized that base station expands the configuration that user terminal sends uplink demodulation reference signal, can meet to a certain extent the unappeasable requirement of configuration information in correlation technique to uplink demodulation reference signal configuration after expansion, and can in residential quarter/orthogonality between community user and disturb randomness to configure flexibly.Not only meet the not enough demand of existing configuration, also improved to a certain extent systematic function.
The upper line correlation Downlink Control Information that base station subtend user terminal sends is configured, the cyclic shift after being included in cyclic shift in the information format of line correlation Downlink Control Information/quadrature mask zone or expanding 1 bit/quadrature mask zone to the following information of user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of this cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of this basic sequence.Need to prove, the parameter that is used for determining cyclically shifted sequences saltus step pattern herein, be and form the part or all of parameter that generates this cyclically shifted sequences saltus step pattern, for example, can adopt following formula during generation cycle shift sequence saltus step pattern:
Figure BDA00001631495700081
Its initial condition is
Figure BDA00001631495700082
That is, related c wherein Init,
Figure BDA00001631495700083
And
Figure BDA00001631495700084
Deng the parameter that is formation generation saltus step pattern; The parameter that is used for determining basic sequence herein, be and form the part or all of parameter that generates this basic sequence, for example, can adopt following formula while generating basic sequence: u=(f gh(n s)+f ss) mod30, wherein, f gh(n s) initial condition be
Figure BDA00001631495700085
Figure BDA00001631495700086
Figure BDA00001631495700087
Δ ss∈ 0,1 ..., 29}, that is, and related c wherein Init,
Figure BDA00001631495700088
Δ ss,
Figure BDA00001631495700089
And
Figure BDA000016314957000810
Deng the parameter that is formation generation basic sequence.
Below the configuration for these three kinds of indication informations and combination thereof describes respectively.
The first: the cyclic shift after expansion 1 bit in the information format of upper line correlation Downlink Control Information/quadrature mask zone comprises to cyclic shift and the corresponding quadrature mask thereof of user terminal indication uplink demodulation reference signal, with part or all quadrature mask for cyclic shift and the correspondence thereof of indicating uplink demodulation reference signal to user terminal of the cyclic shift that cyclic shift/quadrature mask zone increases after expansion 1 bit/quadrature mask index.More preferably, the part of the cyclic shift that cyclic shift/quadrature mask zone increases after 1 bit/quadrature mask index is half index of the cyclic shift that increases/quadrature mask index with expansion.For example, in the situation that original cyclic shift/quadrature mask zone 3 bits, after increasing by 1 bit, the cyclic shift that increases/quadrature mask index is 8, is about to 4 cyclic shift and corresponding quadrature masks thereof that are used to indicate uplink demodulation reference signal wherein.8 index that increase newly all can certainly be used to indicate cyclic shift and the corresponding quadrature mask thereof of uplink demodulation reference signal, namely 8 newly-increased index all adopt.
No matter adopt 4 newly-increased index or all adopt, during for concerning between the cyclic shift value between each layer of collocating uplink demodulated reference signal, expand between the cyclic shift value between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after 1 bit/indicated user terminal of quadrature mask index and can meet following relation: nDMRS, λ (2)=(nDMRS, 0 (2)+Δ λ) mod 12, λ=0 wherein, 1,2,3, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of the cyclic shift that increases/quadrature mask index, the cyclic shift value of 0 (2) difference corresponding 7,5,1,11.Certainly, for each index, the cyclic shift value of corresponding ground floor can be changed.Need to prove, when adopting 4 newly-increased index to indicate, what adopt is one 7 herein, 5,1,11 cyclic shift value, and when adopting 8 newly-increased index to indicate, can adopt two 7,5,1,11 cyclic shift value, can certainly therefrom extract one or more and reuse, according to concrete configuration needs, determine.
And during for concerning between the quadrature mask between each layer of collocating uplink demodulated reference signal, also can adopt the relation of the quadrature mask between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after expansion 1 bit/indicated user terminal of quadrature mask index to meet to comprise following one of at least: the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer; Part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, and rest layers is different from the quadrature mask of the 0th layer; Wherein, the quadrature mask is [1 1] or [1-1].Certainly, number for identical from the different corresponding index of quadrature mask also can be selected, for example, part layer in the remainder layer of collocating uplink demodulated reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, rest layers and different comprising of quadrature mask of the 0th layer: adopt the mode of half-and-half carrying out minute, the quadrature mask that is the first half in all layers of uplink demodulation reference signal is identical, and the quadrature mask of the latter half in all layers is different.
the second: in the information format of upper line correlation downlink Control Information, cyclic shift/quadrature mask region, or after expand 1 bit, cyclic shift /quadrature mask zone, the cyclic shift/quadrature mask indicate uplink demodulation reference signal to user terminal and cyclically shifted sequences saltus step pattern, or for determining cyclically shifted sequences saltus step pattern, parameter comprises: to cyclic shift/quadrature mask zone or the cyclic shift after expanding 1 bit/and whole index in quadrature mask zone divide, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask, and cyclic shift saltus step pattern or cyclic shift/quadrature mask and cyclic shift saltus step pattern, or for the parameter of determining cyclically shifted sequences saltus step pattern.More preferably, to cyclic shift/quadrature mask zone or the whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide and comprise: whole index are divided into two parts or four parts.When being divided into two parts, wherein a part of index is used to indicate the first cyclic shift saltus step pattern or be used for determines the parameter of cyclically shifted sequences saltus step pattern, and another part index is used to indicate the second cyclic shift saltus step pattern or be used for determining the parameter of cyclically shifted sequences saltus step pattern.Division two parts also can adopt the mode to dividing.and when whole index are divided into four parts, first's index is used to indicate the parameter that user terminal uses the first cyclic shift saltus step pattern or is used for determining cyclically shifted sequences saltus step pattern, the second portion index is used to indicate the parameter that user terminal uses the second cyclic shift saltus step pattern or is used for determining cyclically shifted sequences saltus step pattern, the third part index is used to indicate the parameter that user terminal uses the 3rd cyclic shift saltus step pattern or is used for determining cyclically shifted sequences saltus step pattern, the 4th partial index is used to indicate the parameter that user terminal uses the 4th cyclic shift saltus step pattern or is used for determining cyclically shifted sequences saltus step pattern, above-mentioned each cyclic shift saltus step pattern or be used for to determine that the parameter of cyclically shifted sequences saltus step pattern can be the same or different.
the third, cyclic shift in the information format of upper line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the cyclic shift of user terminal indication uplink demodulation reference signal/quadrature mask and basic sequence or be used for determining that the parameter of basic sequence comprises: to cyclic shift/quadrature mask zone or whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and basic sequence or is used for determining the parameter of basic sequence.More preferably, to cyclic shift/quadrature mask zone or the whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide and comprise: whole index are divided into two parts or four parts.Be divided into two parts and be divided into the four corresponding cyclic shift of part/quadrature masks and basic sequence or be used for determining that the parameter of basic sequence is similar to above-mentioned the second, do not repeat them here.
the 4th kind, being about to above-mentioned each indication information unites and indicates, for example, cyclic shift in the information format of upper line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the cyclic shift of user terminal indication uplink demodulation reference signal/quadrature mask, cyclic shift saltus step pattern or be used for to determine parameter and the basic sequence of cyclically shifted sequences saltus step pattern or be used for determining that the parameter of basic sequence comprises: to cyclic shift/quadrature mask zone or whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of cyclically shifted sequences saltus step pattern or is used for determining basic sequence, wherein, to cyclic shift/quadrature mask zone or the whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide and comprise: whole index are divided into two parts or four parts.Be divided into two parts and be divided into the four corresponding cyclic shift of part/quadrature masks and basic sequence or be used for determining that the parameter of basic sequence is similar to above-mentioned second and third kind, do not repeat them here.
More preferably, when user terminal receives above-mentioned indication information, send corresponding uplink demodulation reference signal to base station according to above-mentioned indication information.Base station receives the uplink demodulation reference signal of user terminal according to the upper line correlation Downlink Control Information transmission of configuration.
A kind of uplink demodulation reference signal processing unit also is provided in the present embodiment, and this device is used for realizing above-described embodiment and preferred implementation, had carried out repeating no more of explanation.As used below, the combination of software and/or the hardware of predetermined function can be realized in term " module ".Although the described device of following examples is preferably realized with software, hardware, perhaps the realization of the combination of software and hardware also may and be conceived.
Fig. 8 is the structured flowchart according to the uplink demodulation reference signal processing unit of the embodiment of the present invention, and as shown in Figure 8, this device is arranged in base station, comprises configuration module 82 and sending module 84, below this device is described.
Configuration module 82 is used for the upper line correlation Downlink Control Information that the subtend user terminal sends and is configured: in the cyclic shift of the information format of upper line correlation Downlink Control Information/quadrature mask zone or the cyclic shift after expanding 1 bit/quadrature mask zone to the following information of user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of basic sequence; Sending module 84, be connected to above-mentioned configuration module 82, and the upper line correlation Downlink Control Information that is used for configuring sends to user terminal.
Fig. 9 is the structured flowchart according to the configuration module one in the uplink demodulation reference signal processing unit of the embodiment of the present invention, and as shown in Figure 9, this configuration module 82 comprises the first configuration module 92, below this module is described.
The first configuration module 92, comprise for cyclic shift and the corresponding quadrature mask thereof of the cyclic shift after expansion 1 bit of the information format that is configured in the line correlation Downlink Control Information/quadrature mask zone to user terminal indication uplink demodulation reference signal, with part or all quadrature mask for cyclic shift and the correspondence thereof of indicating uplink demodulation reference signal to user terminal of the cyclic shift that cyclic shift/quadrature mask zone increases after expansion 1 bit/quadrature mask index.
Preferably, this first configuration module 92, meet for the relation between the cyclic shift value between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after configuration expansion 1 bit/indicated user terminal of quadrature mask index: nDMRS, λ (2)=(nDMRS, 0 (2)+Δ λ) mod 12, λ=0 wherein, 1,2,3, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of the cyclic shift that increases/quadrature mask index, the cyclic shift value of 0 (2) difference corresponding 7,5,1,11.
Preferably, this first configuration module 92, the relation that also is used for the quadrature mask between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases/indicated user terminal of quadrature mask index after configuration expansion 1 bit meet comprise following one of at least: the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer; Part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, and rest layers is different from the quadrature mask of the 0th layer; Wherein, the quadrature mask is [1 1] or [1-1].
Figure 10 is the structured flowchart according to the configuration module two in the uplink demodulation reference signal processing unit of the embodiment of the present invention, and as shown in figure 10, this configuration module 82 comprises the second configuration module 102, below this module is described.
the second configuration module 102, cyclic shift after being used for being configured in the cyclic shift of the information format of line correlation Downlink Control Information/quadrature mask zone or expanding 1 bit/quadrature mask zone is to the cyclic shift of user terminal indication uplink demodulation reference signal/quadrature mask and cyclically shifted sequences saltus step pattern or be used for determining that the parameter of cyclically shifted sequences saltus step pattern comprises: to cyclic shift/quadrature mask zone or whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and cyclic shift saltus step pattern or is used for determining the parameter of cyclically shifted sequences saltus step pattern.
Figure 11 is the structured flowchart according to the configuration module three in the uplink demodulation reference signal processing unit of the embodiment of the present invention, and as shown in figure 11, this configuration module 82 comprises the 3rd configuration module 112, below this module is described.
the 3rd configuration module 112, cyclic shift after being used for being configured in the cyclic shift of the information format of line correlation Downlink Control Information/quadrature mask zone or expanding 1 bit/quadrature mask zone is to the cyclic shift of user terminal indication uplink demodulation reference signal/quadrature mask and basic sequence or be used for determining that the parameter of basic sequence comprises: to cyclic shift/quadrature mask zone or whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and basic sequence or is used for determining the parameter of basic sequence.
Figure 12 is the structured flowchart according to the configuration module four in the uplink demodulation reference signal processing unit of the embodiment of the present invention, and as shown in figure 12, this configuration module 82 comprises the 4th configuration module 122, below this module is described.
the 4th configuration module 122, cyclic shift after being used for being configured in the cyclic shift of the information format of line correlation Downlink Control Information/quadrature mask zone or expanding 1 bit/quadrature mask zone is to the cyclic shift of user terminal indication uplink demodulation reference signal/quadrature mask, cyclic shift saltus step pattern or be used for to determine parameter and the basic sequence of cyclically shifted sequences saltus step pattern or be used for determining that the parameter of basic sequence comprises: to cyclic shift/quadrature mask zone or whole index in the cyclic shift after expanding 1 bit/quadrature mask zone divide, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of cyclically shifted sequences saltus step pattern or is used for determining basic sequence.
Figure 13 is the structured flowchart of uplink demodulation reference signal processing unit according to the preferred embodiment of the invention, and as shown in figure 13, this device except all modules that comprise Fig. 8, also comprises receiver module 132, below the receiver module 132 in this device is described.Receiver module 132, be connected to above-mentioned sending module 84, is used for receiving the uplink demodulation reference signal of user terminal according to the upper line correlation Downlink Control Information transmission of configuration.
For meeting in residential quarter/orthogonality between a user and disturb the demand of randomness flexible configuration, the embodiment of the present invention is improved parameter configuration and the Notification Method of uplink demodulation reference signal, a kind of signal deployment and Notification Method of uplink demodulation reference signal are provided, below in conjunction with specific embodiment, have described.
A kind of signal deployment and Notification Method of uplink demodulation reference signal are provided in the present embodiment, the method comprises, base station by the cyclic shift in upper line correlation descending control information format/quadrature mask zone or the cyclic shift after expanding 1 bit/quadrature mask zone to the following information of user terminal indication one of at least: available cycles displacement and the corresponding quadrature mask thereof of uplink demodulation reference signal; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or its relevant control parameter; The basic sequence of uplink demodulation reference signal or its relevant control parameter; The user receives cyclic shift in the line correlation descending control information format and/or the indication information in quadrature mask zone, according to above-mentioned indication information, sends uplink demodulation reference signal.
Below for the combination of base station to three kinds or three kinds indicated information of user terminal, describe respectively.
(1) base station is by being shifted and corresponding quadrature mask to the available cycles of the cyclic shift in upper line correlation descending control information format/quadrature mask area extension 1 bit to user terminal indication uplink demodulation reference signal.
Expand cyclic shift in control information form corresponding after 1 bit/quadrature mask zone and can increase by 8 index, how to carry out the available cycles displacement of uplink demodulation reference signal and the indication of corresponding quadrature mask thereof for these 8 index, below in conjunction with dual mode, illustrate.First kind of way: in 8 index that expansion 1 bit increases, wherein 4 index are used for indicating the available cycles of uplink demodulation reference signal to be shifted and corresponding quadrature mask to the user, remain 4 reservations.
Wherein, the relation of the cyclic shift value between indicated each layer of uplink demodulation reference signal of 4 index with indication information that increases meets: nDMRS, λ (2)=(nDMRS, 0 (2)+Δ λ) mod 12, wherein λ=0,1,2,3, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of described four index, 0 (2) respectively corresponding 7,5,1,11 four cyclic shift value, wherein, this 7,5,1,11 four cyclic shift value can be distinguished corresponding different index.
The relation that quadrature mask between indicated each layer of uplink demodulation reference signal of 4 index with indication information that increase is met can be also multiple, below take following three kinds, describes as example.The relation of the quadrature mask between indicated each layer of uplink demodulation reference signal of 4 index with indication information that (mode 1) increases meets: nOCC, λ=nOCC, 0; λ=0,1,2,3 wherein, nOCC, λ represent the quadrature mask of λ layer, nOCC, 0=[+1+1] or [+1-1].The relation of the quadrature mask between indicated each layer of uplink demodulation reference signal of 4 index with indication information that (mode 2) increases meets: nOCC, λ=nOCC, 0; λ=0,1 wherein; NOCC, λ=1-nOCC, 0 λ=2,3 wherein; NOCC, λ represent the quadrature mask of λ layer; NOCC, 0=[+1+1] or [+1-1].The relation of the quadrature mask between indicated each layer of uplink demodulation reference signal of 4 index with indication information that (mode 3) increases meets: wherein the quadrature mask interlayer relation of 2 index indications meets: nOCC, λ=nOCC, 0; λ=0,1,2,3; The quadrature mask interlayer relation that remains 2 index indications meets: nOCC, λ=nOCC, 0 λ=0,1; NOCC, λ=1-nOCC, 0 λ=2,3; Wherein, nOCC, 0=[+1+1] or [+1-1].
First kind of way: 8 index that expansion 1 bit increases all are used for indicating to the user available cycles displacement and the corresponding quadrature mask thereof of uplink demodulation reference signal.
Wherein, the relation of the cyclic shift value between indicated each layer of uplink demodulation reference signal of 8 index of increase meets: nDMRS, λ (2)=(nDMRS, 0 (2)+Δ λ) mod 12; λ=0,1,2,3 wherein, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of described 8 index, 0 (2) difference correspondence 7,5,1,11,7,5,1,11, wherein, this 7,5,1,11 four cyclic shift value can be distinguished corresponding different index.
The relation that quadrature mask between indicated each layer of uplink demodulation reference signal of 8 index with indication information that increase is met can be also multiple, below also take following three kinds, describes as example.The relation of the quadrature mask between each layer of the uplink demodulation reference signal that 8 index that (mode 1) increases are indicated meets: nOCC, λ=nOCC, 0; λ=0,1,2,3; Wherein, nOCC, λ represent the quadrature mask of λ layer, front 4 nOCC that index is indicated in described 8 index, 0=[+1+1] or [+1-1], remain 4 nOCC that index is indicated, 0=[+1-1] or [+1+1].The relation of the quadrature mask between each layer of the uplink demodulation reference signal that 8 index that (mode 2) increases are indicated meets: nOCC, λ=nOCC, 0; λ=0,1 wherein; NOCC, λ=1-nOCC, 0 λ=2,3 wherein; NOCC, k represent the quadrature mask of λ layer; Front 4 nOCC that index is indicated in 8 index, 0=[+1+1] or [+1-1], remain 4 nOCC that index is indicated, 0=[+1-1] or [+1+1].The relation of the quadrature mask between each layer of the uplink demodulation reference signal that 8 index that (mode 3) increases are indicated meets: wherein the quadrature mask interlayer relation of 4 index indications meets: nOCC, λ=nOCC, 0; λ=0,1,2,3; The quadrature mask interlayer relation that remains 4 index indications meets: nOCC, λ=nOCC, 0 λ=0,1; NOCC, λ=nOCC, 0 λ=2,3.NOCC, λ represent the quadrature mask of λ layer; Front 4 nOCC that index is indicated in 8 index, 0=[+1+1] or [+1-1], remain 4 nOCC that index is indicated, 0=[+1-1] or [+1+1].
(2) base station is by the cyclic shift in the descending control information format of upper line correlation/quadrature mask zone or expand the cyclic shift of 1 bit rear line joint instructions uplink demodulation reference signal/quadrature mask and cyclic shift saltus step drawing information, below explanation respectively.
Base station by the cyclic shift in the descending control information format of upper line correlation/quadrature mask zone to the cyclic shift of user's joint instructions uplink demodulation reference signal/quadrature mask and cyclic shift saltus step drawing information.Wherein, can divide for the index in cyclic shift/quadrature mask zone, can divide equally also and can not divide equally, for example, index in cyclic shift/quadrature mask zone can be divided into two parts, two parts after dividing are the saltus step pattern of indicating user terminal use respectively.For example, wherein 4 index in cyclic shift/quadrature mask zone are used to indicate the user and use cyclic shift saltus step pattern 1, remain 4 index and are used to indicate the user and use cyclically shifted sequences saltus step pattern 2.
Base station is by the cyclic shift to the cyclic shift in the descending control information format of upper line correlation/quadrature mask area extension 1 bit rear line joint instructions uplink demodulation reference signal/quadrature mask and cyclic shift saltus step drawing information.Wherein partial index in 12 kinds of cyclic shift/quadrature mask zone or 16 kinds of index is used to indicate the user and uses cyclic shift saltus step pattern 1, the residue index is used to indicate the user and uses cyclic shift saltus step pattern 2, wherein, adopt 4 index in cyclic shift/quadrature mask zone still to adopt 8 index relevant after 12 kinds of the cyclic shift of above-mentioned indication/quadrature mask zone or 16 kinds of index and expansion 1 bit, when adopting 4 index, add 8 kinds that adopt in correlation technique, what this moment was corresponding is 12 kinds; And while adopting newly-increased whole index (8), add 8 kinds that adopt in correlation technique, this moment correspondence be exactly 16 kinds.Different index also can adopt the method for above-mentioned division index while indicating different saltus step patterns, corresponding saltus step pattern indicated respectively in index after same the division, for example, while being divided into two parts, wherein a part is used to indicate cyclic shift saltus step pattern 1, and remainder is used to indicate cyclic shift saltus step pattern 2.Certainly, also 12 kinds of cyclic shift/quadrature mask zone or 16 kinds of index can be divided into four parts, wherein first's index is used to indicate the user and uses cyclic shift saltus step pattern 1, the second portion index is used to indicate the user and uses cyclic shift saltus step pattern 2, the third part index is used to indicate the user and uses cyclic shift saltus step pattern 3, the four partial index user indicating users to use cyclic shift saltus step pattern 4.
Need to prove, above-mentioned cyclic shift saltus step pattern 1, cyclic shift saltus step pattern 2, cyclic shift saltus step pattern 3 and cyclic shift saltus step pattern 4 can be configured the user by high level by base station.
(3) base station is by the cyclic shift in the descending control information format of upper line correlation/quadrature mask zone or expand the cyclic shift of 1 bit rear line joint instructions uplink demodulation reference signal/quadrature mask, basic sequence and cyclic shift saltus step pattern configuration information.Below describe respectively.
Base station by the cyclic shift in the descending control information format of upper line correlation/quadrature mask zone to the cyclic shift of user's joint instructions uplink demodulation reference signal/quadrature mask, basic sequence and cyclic shift saltus step pattern configuration information, wherein, can divide for the index in cyclic shift/quadrature mask zone, can divide equally also and can not divide equally, for example, index in cyclic shift/quadrature mask zone can be divided into two parts, two parts after dividing are the saltus step pattern of indicating user terminal use respectively.For example, wherein 4 index in cyclic shift/quadrature mask zone are used to indicate the user and use basic sequence and cyclic shift saltus step pattern configuration information 1, remain 4 index and are used to indicate the user and use basic sequence and cyclic shift saltus step pattern configuration information 2.
Base station is by the cyclic shift to the cyclic shift in the descending control information format of upper line correlation/quadrature mask area extension 1 bit rear line joint instructions uplink demodulation reference signal/quadrature mask, basic sequence and cyclic shift saltus step pattern configuration information.Equally, adopt above-mentioned identical division methods, whole index after expansion 1 bit can be divided into two parts, be that wherein partial index in 12 kinds of cyclic shift/quadrature mask zone or 16 kinds of index is used to indicate the user and uses basic sequence and cyclic shift saltus step pattern configuration information 1, the residue index is used to indicate the user and uses basic sequence and cyclic shift saltus step pattern configuration information 2.Also 12 kinds of cyclic shift/quadrature mask zone or 16 kinds of index can be divided into four parts, wherein first's index is used to indicate the user and uses basic sequence and cyclic shift saltus step pattern configuration information 1, the second portion index is used to indicate the user and uses basic sequence and cyclic shift saltus step pattern configuration information 2, third part is used to indicate the user and uses basic sequence and cyclic shift saltus step pattern configuration information 3, the four parts to be used to indicate the user to use basic sequence and cyclic shift saltus step pattern configuration information 4.
Equally, above-mentioned basic sequence and cyclic shift saltus step pattern configuration information 1, basic sequence and cyclic shift saltus step pattern configuration information 2, basic sequence and cyclic shift saltus step pattern configuration information 3 and basic sequence and cyclic shift saltus step pattern configuration information 4 also can be configured the user by high level by base station.
Believe signal deployment and the Notification Method of the uplink demodulation reference signal that preferred implementation provides by above-described embodiment, not only solved in the prior art and can not meet the demands based on the proprietary uplink demodulation reference signal configuration in semi-static residential quarter, and uplink demodulation reference signal configuration is to the configuration of saltus step pattern also inflexible problem, also can further increase the available CS quantity of up DMRS and realize flexible configuration and the notice of basic sequence and/or the CS saltus step pattern of up DMRS, be conducive to improve systematic function.
Below in conjunction with the CS/OCC index and to the cyclic shift of user terminal indication uplink demodulation reference signal and the mapping table between the quadrature mask information, the embodiment of the present invention and preferred implementation are described.Need to prove the indicated relevant information of index of the behavior expansion of overstriking and inclination in following each table.
Embodiment 1
CS capacity extension (mode 1):
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift and the quadrature mask information of uplink demodulation reference signal, the user receives the indicated cyclic shift of above-mentioned CS/OCC index and quadrature mask information, according to above-mentioned information, sends uplink demodulation reference signal.
The descending control signaling form of above-mentioned upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 2 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700141
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 2.The indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal and quadrature mask information according to following table to the user.
Table 2
Figure BDA00001631495700151
Embodiment 2
CS capacity extension (mode 2):
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift and the quadrature mask information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index and quadrature mask information, and information sends uplink demodulation reference signal as indicated.
The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 3 be the indicated CS/OCC index of 4 bits, With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 3, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal and quadrature mask information according to following table to the user.
Table 3
Figure BDA00001631495700161
Embodiment 3
CS capacity extension (mode 3):
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift and the quadrature mask information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index and quadrature mask information, and information sends uplink demodulation reference signal as indicated.
The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 4 be the indicated CS/OCC index of 4 bits, With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 4, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal and quadrature mask information according to following table to the user.
Table 4
Figure BDA00001631495700171
Embodiment 4
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift and the quadrature mask information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index and quadrature mask information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 5 be the indicated CS/OCC index of 4 bits, With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 5, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal and quadrature mask information according to following table to the user.
Table 5
Figure BDA00001631495700181
Embodiment 5
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift and the quadrature mask information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index and quadrature mask information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 6 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700182
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 6, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal and quadrature mask information according to following table to the user.
Table 6
Figure BDA00001631495700191
Embodiment 6
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift and the quadrature mask information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index and quadrature mask information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 7 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700192
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 7, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal and quadrature mask information according to following table to the user.
Table 7
Figure BDA00001631495700201
Embodiment 7
Inter-cell user is passed through the OCC quadrature:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format4, and wherein, indicate with 3 bit signallings in CS/OCC index zone.Table 8 be the indicated CS/OCC index of 3 bits,
Figure BDA00001631495700202
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 8, the indicated CS/OCC index of 3 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information and cyclic shift saltus step drawing information according to following table to the user.
Table 8
Wherein " pattern 1 " and " pattern 2 " represents respectively two kinds of similar and different CS saltus step patterns.These two kinds of CS saltus step patterns are configured to UE by high level by eNB.
Embodiment 8
The OCC quadrature is passed through in minizone:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask and cyclic shift saltus step drawing information, according to information, sends uplink demodulation reference signal.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 9 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700212
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 9, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information and cyclic shift saltus step drawing information according to following table to the user.
Table 9
Figure BDA00001631495700221
Wherein, " pattern 1 " and " pattern 2 " represents respectively two kinds of similar and different CS saltus step patterns, and these two kinds of CS saltus step patterns are configured to UE by high level by eNB.
Embodiment 9
The OCC quadrature is passed through in minizone:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask and cyclic shift saltus step drawing information, according to information, sends uplink demodulation reference signal.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 10 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700222
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 10, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information and cyclic shift saltus step drawing information according to following table to the user.
Table 10
Figure BDA00001631495700231
Wherein, " pattern 1 " and " pattern 2 " represents respectively two kinds of similar and different CS saltus step patterns, and these two kinds of CS saltus step patterns are configured to UE by high level by eNB.
Embodiment 10
The OCC quadrature is passed through in minizone:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 11 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700232
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 11, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information and cyclic shift saltus step drawing information according to following table to the user.
Table 11
Figure BDA00001631495700241
Wherein, " pattern 1 " and " pattern 2 " represents respectively two kinds of similar and different CS saltus step patterns, and these two kinds of CS saltus step patterns are configured to UE by high level by eNB.
Embodiment 11
The OCC quadrature is passed through in minizone:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 12 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700242
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 12, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information and cyclic shift saltus step drawing information according to following table to the user.
Table 12
Figure BDA00001631495700251
Wherein, " pattern 1 ", " pattern 2 ", " pattern 3 " and " pattern 4 " represent respectively two kinds of similar and different CS saltus step patterns, and these four kinds of CS saltus step patterns are configured to UE by high level by eNB.
Embodiment 12
Inter-cell user is passed through the CS quadrature:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information, basic sequence and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask, basic sequence and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 3 bit signallings in CS/OCC index zone.Table 13 be the indicated CS/OCC index of 3 bits,
Figure BDA00001631495700252
With [w (λ)(0) w (λ)(1)] mapping table between, as shown in table 13, the indicated CS/OCC index of 3 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information, basic sequence and cyclic shift saltus step drawing information according to following table to the user.
Table 13
Figure BDA00001631495700261
Wherein, " configuration 1 " and " configuration 2 " unites configuration to basic sequence and CS saltus step pattern, is specially:
Table 14
Figure BDA00001631495700262
Wherein, basic sequence 1 and basic sequence 2 can be identical or different, and CS saltus step pattern 1 and CS saltus step pattern 2 can be identical or different, and configuration 1 and configuration 2 are configured to UE by high level by eNB.
Embodiment 13
Inter-cell user is passed through the CS quadrature:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information, basic sequence and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask, basic sequence and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 15 be the indicated CS/OCC index of 4 bits, With [w (λ)(0) w (λ)(1)] mapping table between, as shown in Table 15, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information, basic sequence and cyclic shift saltus step drawing information according to following table to the user.
Table 15
Figure BDA00001631495700271
Wherein, " configuration 1 " and " configuration 2 " unites configuration to basic sequence and CS saltus step pattern, is specially:
Table 16
Figure BDA00001631495700272
Wherein, basic sequence 1 and basic sequence 2 can be identical or different, and CS saltus step pattern 1 and CS saltus step pattern 2 can be identical or different, and configuration 1 and configuration 2 are configured to UE by high level by eNB.
Embodiment 14
Inter-cell user is passed through the CS quadrature:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information, basic sequence and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask, basic sequence and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 17 be the indicated CS/OCC index of 4 bits, With [w (λ)(0) w (λ)(1)] mapping table between, shown in table 17, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information, basic sequence and cyclic shift saltus step drawing information according to following table to the user.
Table 17
Figure BDA00001631495700282
Wherein, " configuration 1 " and " configuration 2 " unites configuration to basic sequence and CS saltus step pattern, is specially:
Table 18
Figure BDA00001631495700291
Wherein, basic sequence 1 and basic sequence 2 can be identical or different, and CS saltus step pattern 1 and CS saltus step pattern 2 can be identical or different, and configuration 1 and configuration 2 are configured to UE by high level by eNB.
Embodiment 15
Inter-cell user is passed through the CS quadrature:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information, basic sequence and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask, basic sequence and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 19 be the indicated CS/OCC index of 4 bits, With [w (λ)(0) w (λ)(1)] mapping table between, shown in table 19, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information, basic sequence and cyclic shift saltus step drawing information according to following table to the user.
Table 19
Figure BDA00001631495700301
Wherein, " configuration 1 " and " configuration 2 " unites configuration to basic sequence and CS saltus step pattern, is specially:
Table 20
Figure BDA00001631495700302
Wherein, basic sequence 1 and basic sequence 2 can be identical or different, and CS saltus step pattern 1 and CS saltus step pattern 2 can be identical or different, and configuration 1 and configuration 2 are configured to UE by high level by eNB.
Embodiment 16
Inter-cell user is passed through the CS quadrature:
Base station configures and sends this user by the CS/OCC index zone in the descending control signaling form of upper line correlation to the user and is used for sending cyclic shift, quadrature mask information, basic sequence and the cyclic shift saltus step drawing information of uplink demodulation reference signal, the user receives the indicated cyclic shift of CS/OCC index, quadrature mask, basic sequence and cyclic shift saltus step drawing information, and information sends uplink demodulation reference signal as indicated.The descending control signaling form of upper line correlation refers to DCI format 0 or DCI format 4, and wherein, indicate with 4 bit signallings (having increased by 1 bit) in CS/OCC index zone.Table 21 be the indicated CS/OCC index of 4 bits,
Figure BDA00001631495700311
With [w (λ)(0) w (λ)(1)] mapping table between, shown in table 21, the indicated CS/OCC index of 4 bit signallings is indicated its cyclic shift that is used for uplink demodulation reference signal, quadrature mask information, basic sequence and cyclic shift saltus step drawing information according to following table to the user.
Table 21
Figure BDA00001631495700312
Wherein, " configuration 1 " and " configuration 2 " unites configuration to basic sequence and CS saltus step pattern, is specially:
Table 22
Ji Xulie ﹠CS saltus step pattern Basic sequence CS saltus step pattern
Configuration
1 Basic sequence 1 CS saltus step pattern 1
Configuration 2 Basic sequence 2 CS saltus step pattern 2
Configuration 3 Basic sequence 3 CS saltus step pattern 3
Configuration 4 Basic sequence 4 CS saltus step pattern 4
Wherein, basic sequence 1, basic sequence 2, basic sequence 3 and basic sequence 4 can be identical or different, CS saltus step pattern 1, CS saltus step pattern 2, CS saltus step pattern 3 and CS saltus step pattern 4 can be identical or different, configuration 1, configuration 2, configuration 3 and configure 4 and configured to UE by high level by eNB.
obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step being made into the single integrated circuit module realizes.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.

Claims (19)

1. a uplink demodulation reference signal processing method, is characterized in that, comprising:
The upper line correlation Downlink Control Information that base station subtend user terminal sends is configured: the cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the following information of described user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of described cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of described basic sequence;
The described upper line correlation Downlink Control Information that described base station will configure sends to described user terminal.
2. method according to claim 1, it is characterized in that, cyclic shift after expansion 1 bit on described in the information format of line correlation Downlink Control Information/quadrature mask zone comprises to cyclic shift and the corresponding quadrature mask thereof of described user terminal indication uplink demodulation reference signal, and part or all of cyclic shift that the cyclic shift after described expansion 1 bit/quadrature mask zone increases/quadrature mask index is used for to cyclic shift and corresponding quadrature mask thereof of described user terminal indication uplink demodulation reference signal.
3. method according to claim 2, is characterized in that, the part of the cyclic shift that the cyclic shift after described expansion 1 bit/quadrature mask zone increases/quadrature mask index is half index in the cyclic shift that increases/quadrature mask index.
4. the described method of any one according to claim 1-3, it is characterized in that, the relation between the cyclic shift value between each layer of uplink demodulation reference signal of the cyclic shift that the cyclic shift after described expansion 1 bit/quadrature mask zone increases/indicated user terminal of quadrature mask index meets:
nDMRS,λ(2)=(nDMRS,0(2)+Δλ)mod?12，
λ=0,1,2,3 wherein, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of the cyclic shift of described increase/quadrature mask index, the cyclic shift value of 0 (2) difference corresponding 7,5,1,11.
5. the described method of any one according to claim 1-3, it is characterized in that, the relation of the quadrature mask between each layer of uplink demodulation reference signal of the cyclic shift that the cyclic shift after described expansion 1 bit/quadrature mask zone increases/indicated user terminal of quadrature mask index meet comprise following one of at least:
The remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer;
Part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, and rest layers is different from the quadrature mask of the 0th layer; Wherein, described quadrature mask is [1 1] or [1-1].
6. method according to claim 5, it is characterized in that, part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, rest layers and different comprising of quadrature mask of the 0th layer: the quadrature mask of the first half in all layers of uplink demodulation reference signal is identical, and the quadrature mask of the latter half in all layers is different.
7. method according to claim 1, it is characterized in that, cyclic shift after cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone is to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and cyclically shifted sequences saltus step pattern or be used for determining that the parameter of described cyclically shifted sequences saltus step pattern comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and cyclic shift saltus step pattern or is used for determining the parameter of described cyclically shifted sequences saltus step pattern.
8. method according to claim 1, it is characterized in that, cyclic shift after cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone is to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and basic sequence or be used for determining that the parameter of described basic sequence comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and basic sequence or is used for determining the parameter of described basic sequence.
9. method according to claim 1, it is characterized in that, cyclic shift after cyclic shift on described in the information format of line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone is to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or being used for definite described basic sequence comprise: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or is used for determining described basic sequence.
10. the described method of any one according to claim 7-9, it is characterized in that, the whole index in the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided and comprised: described whole index are divided into two parts or four parts.
11. according to claim 1-3, the described method of any one in 7-9, is characterized in that, also comprises that described base station receives the described uplink demodulation reference signal of described user terminal according to the described upper line correlation Downlink Control Information transmission of configuration.
12. a uplink demodulation reference signal processing unit, is characterized in that, is arranged in base station, comprising:
Configuration module is used for the upper line correlation Downlink Control Information that the subtend user terminal sends and is configured: on described the cyclic shift of the information format of line correlation Downlink Control Information/quadrature mask zone or expand 1 bit after cyclic shift/quadrature mask zone to the following information of described user terminal indication one of at least: the cyclic shift of uplink demodulation reference signal and corresponding quadrature mask thereof; The cyclically shifted sequences saltus step pattern of uplink demodulation reference signal or be used for to determine the parameter of described cyclically shifted sequences saltus step pattern; The basic sequence of uplink demodulation reference signal or be used for to determine the parameter of described basic sequence;
Sending module, the described upper line correlation Downlink Control Information that is used for configuring sends to described user terminal.
13. device according to claim 12, it is characterized in that, described configuration module comprises the first configuration module, comprise for cyclic shift and the corresponding quadrature mask thereof of the cyclic shift after expansion 1 bit of the information format that is configured in described upper line correlation Downlink Control Information/quadrature mask zone to described user terminal indication uplink demodulation reference signal, part or all of cyclic shift that cyclic shift after described expansion 1 bit/quadrature mask zone increases/quadrature mask index is used for to cyclic shift and corresponding quadrature mask thereof of described user terminal indication uplink demodulation reference signal.
14. device according to claim 13, it is characterized in that, described the first configuration module, the relation that is used for configuring between the cyclic shift value between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after described expansion 1 bit/indicated user terminal of quadrature mask index meets:
nDMRS,λ(2)=(nDMRS,0(2)+Δλ)mod?12，
λ=0,1,2,3 wherein, nDMRS, the cyclic shift of λ (2) expression λ layer; Δ λ represents cyclic shift interval, λ=0,1, and the cyclic shift interval of 2,3 layers is respectively Δ λ=0,6,3,9; The ground floor nDMRS of the cyclic shift of described increase/quadrature mask index, the cyclic shift value of 0 (2) difference corresponding 7,5,1,11.
15. according to claim 13 or 14 described devices, it is characterized in that, described the first configuration module, the relation that also is used for configuring the quadrature mask between each layer of uplink demodulation reference signal of the cyclic shift that cyclic shift/quadrature mask zone increases after described expansion 1 bit/indicated user terminal of quadrature mask index meet comprise following one of at least:
The remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer;
Part layer in the remainder layer of uplink demodulation reference signal except the 0th layer is all identical with the quadrature mask of the 0th layer, and rest layers is different from the quadrature mask of the 0th layer; Wherein, described quadrature mask is [1 1] or [1-1].
16. device according to claim 12, it is characterized in that, described configuration module comprises the second configuration module, be used for being configured in cyclic shift after the cyclic shift of the information format of described upper line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and cyclically shifted sequences saltus step pattern or be used for determining that the parameter of described cyclically shifted sequences saltus step pattern comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and cyclically shifted sequences saltus step pattern or is used for determining the parameter of described cyclically shifted sequences saltus step pattern.
17. device according to claim 12, it is characterized in that, described configuration module comprises the 3rd configuration module, be used for being configured in cyclic shift after the cyclic shift of the information format of described upper line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask and basic sequence or be used for determining that the parameter of described basic sequence comprises: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask and basic sequence or is used for determining the parameter of described basic sequence.
18. device according to claim 12, it is characterized in that, described configuration module comprises the 4th configuration module, be used for being configured in cyclic shift after the cyclic shift of the information format of described upper line correlation Downlink Control Information/quadrature mask zone or described expansion 1 bit/quadrature mask zone to the cyclic shift of described user terminal indication uplink demodulation reference signal/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or being used for definite described basic sequence comprise: the whole index to the cyclic shift after described cyclic shift/quadrature mask zone or described expansion 1 bit/quadrature mask zone are divided, wherein, index after dividing is used for cyclic shift corresponding to indication respectively/quadrature mask, cyclic shift saltus step pattern or the parameter that is used for determining parameter and the basic sequence of described cyclically shifted sequences saltus step pattern or is used for determining described basic sequence.
19. according to claim 12-14, the described device of any one in 16-18, is characterized in that, also comprises receiver module, is used for receiving the described uplink demodulation reference signal of described user terminal according to the described upper line correlation Downlink Control Information transmission of configuration.
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