CN102142918B - Method and equipment for processing pilot sequence - Google Patents

Abstract

The invention discloses a method and equipment for processing a pilot sequence. The method comprises the following steps that: a base station indicates user equipment or a user equipment group to generate a pilot identification used by the pilot sequence, or determines the pilot identification used when generating the pilot sequence according to a predetermined rule appointed with the user equipment, and generates the pilot sequence according to the pilot identification; and the user equipment determines the pilot identification used when generating the pilot sequence according to the indication of the base station or the predetermined rule appointed with the base station, and generates a pilot signal according to the pilot identification. The method and the equipment can ensure the orthogonality of pilot sequences among pieces of user equipment by utilizing different pilot sequence configurations so as to improve channel estimation performance.

Description

A kind of processing method of pilot frequency sequence and equipment

Technical field

The present invention relates to wireless communication technology, particularly a kind of processing method, equipment of pilot frequency sequence.

Background technology

At LTE-A (Long Term Evolution-Advanced, long-term evolution upgrading) in system downstream transmission, various RS (reference signal, pilot signal/reference signal) sequence is all initialized according to the Cell_ID (cell ID) of Serving cell, the RS initialization in different districts is all generally different.In CoMP (Cooperative multiple point transmission, cooperative multipoint transmission) system, in order to improve spectrum efficiency, MU-MIMO (Multiple-user MIMO, multiuser MIMO can be carried out; MIMO:Multiple Input Multiple Output, multiple-input, multiple-output) process, namely multiple UE (User Equipment is given in the base station of multiple community simultaneously, subscriber equipment) transmit data, or receive the transmission data of multiple UE, and these UE take identical physical resource carries out multiplexing simultaneously.If multiplexing UE belongs to same community, then can be ensured the orthogonality of RS signal between different UEs by the configuration of RS (such as port, cyclic shift etc.).

But the deficiencies in the prior art are: in prior art, the generation of RS sequence always obtains according to the community ID of its Serving cell, can not support the resource multiplex between the UE of different districts, cannot ensure the orthogonality between its RS under a lot of scene.

Summary of the invention

Technical problem solved by the invention there are provided a kind of processing method, equipment of pilot frequency sequence, in order to when supporting the resource multiplex between the UE of different districts, ensures the orthogonality between its RS.

Provide a kind of processing method of pilot frequency sequence in the embodiment of the present invention, comprise the steps:

The pilot identification that the pilot frequency sequence of user equipment (UE) is used when generating is determined in base station;

Pilot identification described in base station instruction UE.

Provide a kind of processing method of pilot frequency sequence in the embodiment of the present invention, comprise the steps:

UE receives the instruction of base station, and described instruction includes the pilot frequency sequence of the UE that base station the is determined pilot identification used when generating;

UE is according to described pilot identification generating pilot frequency sequence.

Provide a kind of processing method of pilot frequency sequence in the embodiment of the present invention, comprise the steps:

The pilot identification used when generating pilot frequency sequence is determined by preset rules;

According to described pilot identification generating pilot frequency sequence.

Provide a kind of base station in the embodiment of the present invention, comprising:

Determination module, for determining the pilot identification that the pilot frequency sequence of UE is used when generating;

Indicating module, is used to indicate pilot identification described in UE.

Provide a kind of subscriber equipment in the embodiment of the present invention, comprising:

Receiver module, for receiving the instruction of base station, the pilot identification that the pilot frequency sequence that described instruction includes the UE that base station is determined is used when generating;

Generation module, for according to described pilot identification generating pilot frequency sequence.

Provide a kind for the treatment of facility of pilot frequency sequence in the embodiment of the present invention, comprising:

Determination module, for determining the pilot identification used when generating pilot frequency sequence by preset rules;

Generation module, for according to described pilot identification generating pilot frequency sequence.

Beneficial effect of the present invention is as follows:

In the technical scheme that the embodiment of the present invention provides, because the pilot identification that UE generating pilot frequency sequence is used is base station instruction UE, or to arrange with base station, therefore can dispatch the UE carrying out resource multiplex and adopt identical RS basic sequence, thus different RS can be utilized to configure the RS orthogonality ensured between UE.And and then the performance of raising channel estimating.Further, the mutual interference of RS between the UE carrying out resource multiplex can also be reduced.

Accompanying drawing explanation

Fig. 1 is single user JT schematic diagram in the embodiment of the present invention;

Fig. 2 is multi-user JT schematic diagram in the embodiment of the present invention;

Fig. 3 is the processing method implementing procedure schematic diagram of base station side pilot frequency sequence in the embodiment of the present invention;

Fig. 4 is the processing method implementing procedure schematic diagram of UE side pilot frequency sequence in the embodiment of the present invention;

Fig. 5 is the processing method implementing procedure schematic diagram of pilot frequency sequence in the embodiment of the present invention;

Fig. 6 is architecture of base station schematic diagram in the embodiment of the present invention;

Fig. 7 is user device architecture schematic diagram in the embodiment of the present invention;

Fig. 8 is the treatment facility structural representation of pilot frequency sequence in the embodiment of the present invention.

Embodiment

Inventor notices in invention process:

In current lte-a system, descending DMRS (demodulation reference signal, demodulated reference signal) can from multiple port transmission, and the channel estimating that terminal obtains according to DMRS is to carry out the detection of data.DMRS basic sequence is generated by following formula:

$r\left(m\right)=\frac{1}{\sqrt{2}}(1-2\·c\left(2m\right))+j\frac{1}{\sqrt{2}}(1-2\·c(2m+1)),$

$m=\left\{\begin{array}{cc}\mathrm{0,1},...,12N_{\mathrm{RB}}^{\max ,\mathrm{DL}}-1& \mathrm{normal\; cyclic\; prefix}\\ \mathrm{0,1},...,16N_{\mathrm{RB}}^{\max ,\mathrm{DL}}-1& \mathrm{extended\; cyclic\; prefix}\end{array}\right.$

Wherein for descending maximum RB (resource block, Resource Block) quantity, pseudo random sequence c (i) is carrying out initialization in order to lower formula:

Wherein, n _sfor time-gap number, for the Serving cell ID (mark) of UE, n _sCIDbe the ID of scramble sequence, value is 0 or 1.

When carrying out same community MU-MIMO transmission, scramble sequence ID (the SCID:Scrambling ID that UE can have two kinds of different DMRS port configurations different with two kinds, scrambling identifies) configuration, therefore can support at most that 4 users are based on the multiplexing transmission of DMRS.Now, different users has at most four kinds of DMRS configurations, is respectively:

1, DMRS configuration 1: antenna port=7, SCID=0;

2, DMRS configuration 2: antenna port=8, SCID=0;

3, DMRS configuration 3: antenna port=7, SCID=1;

4, DMRS configuration 4: antenna port=8, SCID=1.

In CoMP system, the transfer point set certain UE or UE group being carried out to joint transmission is commonly referred to cooperative cluster, and each cooperative cluster can have oneself group ID (group mark), in order to identify different cooperative cluster.Multiple transfer points (community) in cooperative cluster can transmit data to one or more UE simultaneously, obtain the gain of Combined Treatment and MU-MIMO.

Fig. 1 is single user JT (Joint Transmission, joint transmission) schematic diagram, and Fig. 2 is multi-user JT schematic diagram, if same resource transmits data only to a UE, is then called single user JT, as shown in Figure 1; If same resource transmits data to multiple UE simultaneously, be then called multi-user JT, as shown in Figure 2.For the situation of multi-user JT, if multiplexing UE belongs to different Serving cells, in such as Fig. 2, UE1 belongs to Cell1, UE3 belongs to Cell3, when then a base station sends DMRS to multiple multiplexing UE simultaneously, because the initial method of the DMRS sequence of different UEs is different, its orthogonality each other cannot be ensured by port or scramble sequence.Mutual interference now between multiplexing UE is very large, greatly can affect the demodulation performance of its data, thus reduces transmission rate.Therefore, be now necessary to allow and carry out the multiplexing UE that MU-JT (multi-user JT) transmits and adopt identical DMRS basic sequence, adopt identical Cell_ID when namely carrying out pseudo random sequence initialization, and no matter whether it belongs to same community.

In addition, in uplink, the basic sequence of DMRS is obtained by following formula:

$r^{\mathrm{PUSCH}}(m\·M_{\mathrm{sc}}^{\mathrm{RS}}+n)=r_{u,v}^{\left(\mathrm{\α}\right)}\left(n\right),$ Wherein

Group sequence number u=(f _gh(n _s)+f _ss) mod30 and

$f_{\mathrm{ss}}^{\mathrm{PUSCH}}=(N_{\mathrm{ID}}^{\mathrm{cell}}\mathrm{mod}30+{\mathrm{\Δ}}_{\mathrm{ss}})\mathrm{mod}30$

Wherein Δ _ss∈ 0,1 ..., 29} is configured by high level, and pseudo random sequence c (i) is in the initial use of each radio frames carry out initialization, for the Serving cell ID of UE.

Sequence number in group:

Wherein pseudo random sequence c (i) is in the initial use of each radio frames carry out initialization.

Visible, UL (Up-Link, up link) DMRS basic sequence generation Shi Yu community ID tight association, the DMRS basic sequence that different community ID obtains also is different.Even if the UL DMRS basic sequence of Liang Ge community is identical, its DMRS sequence is also relevant in the cyclic shift of different time-gap and Cell ID, and its cyclic shift computing formula is as follows:

α＝2πn _cs/12

$n_{\mathrm{cs}}=(n_{\mathrm{DMRS}}^{\left(1\right)}+n_{\mathrm{DMRS}}^{\left(2\right)}+n_{\mathrm{PN}}\left(n_s\right))\mathrm{mod}12$

Wherein with indicated by high-level signaling and PDCCH (physical downlink control channel, Physical Downlink Control Channel) signaling respectively, $n_{\mathrm{PN}}\left(n_s\right)={\mathrm{\Σ}}_{i=0}^{7}c({8N}_{\mathrm{symb}}^{\mathrm{UL}}\·n_s+i)\·2^i$ Be called cyclic shift frequency hop sequences, n _sfor time-gap number, pseudo random sequence c (i) is cell-specific, and it is in the initial use of each radio frames carry out initialization.

Visible for different community ID, its cyclic shift frequency hop sequences generates also different, cyclic shift frequency hopping between such two time slots is different for different communities, the timeslot-based orthogonal codes such as OCC (Orthogonal Cover Code, orthogonal covering codes) now just can not be utilized to obtain orthogonality between the DMRS sequence of Liang Ge community.

In uplink, carry out MU-MIMO multiplexing transmission between UE and mainly rely on the cyclic shift of sequence or OCC to obtain orthogonality.If UE belongs to different communities, Ze Qi community ID is different, and the DMRS basic sequence of generation is also different, does not now just ensure orthogonal by different cyclic shifts.Simultaneously because the cyclic shift frequency hopping between time slot is different for different Cell ID, OCC can not be utilized to obtain orthogonality, greatly limit the flexibility of resource multiplex between UE.Many times, in CoMP scene, be particularly difficult to the orthogonality ensureing DMRS between the multiplexing UE in different districts, and the DMRS of neighbor cell in system will be caused like this to there is larger interference.

Also namely, if multiplexing UE belongs to same community, then the orthogonality of RS signal between different UEs can be ensured by the configuration of RS (such as port, cyclic shift etc.).If but multiplexing UE belongs to different communities, then its RS basic sequence is different, cannot configure ensure its orthogonality with different RS.Also Given this, generation method, the equipment of the generation of instruction pilot frequency sequence and pilot frequency sequence will be provided in the embodiment of the present invention, in scheme, base station generates parameter by some signaling UE pilot frequency sequence, UE carries out the generation of RS basic sequence according to this parameter, thus ensure that the UE carrying out multiplexing transmission adopts identical basic sequence, different RS configurations can be utilized to reduce mutual interference.

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.

In declarative procedure, to be described from the enforcement of UE and base station side respectively, and implement to be described to the cooperation of the two simultaneously, but this does not also mean that the two must coordinate enforcement, in fact, when UE and base station separate implement time, it also solves Problems existing in UE side, base station side respectively, when just the two is combined, better technique effect can be obtained.

In the technical scheme that the embodiment of the present invention provides, base station can indicate or arrange parameter RS ID used when its up-downgoing pilot frequency sequence of UE/UE group generates by some signaling, also namely adopt new pilot identification in order to replace pilot frequency sequence in prior art to generate community ID used, thus reduce carry out resource multiplex UE between the mutual interference of RS, scheme mainly contains instruction and agreement two kinds of modes, is described respectively below.

One, the mode of base station instruction UE.

Fig. 3 is the processing method implementing procedure schematic diagram of base station side pilot frequency sequence, as shown in the figure, can comprise the steps: when base station side indicates

Step 301, base station determine the pilot identification that the pilot frequency sequence of user equipment (UE) or UE group is used when generating;

Step 302, the described pilot identification of base station instruction UE or UE group.

Fig. 4 is the processing method implementing procedure schematic diagram of UE side pilot frequency sequence, as shown in the figure, accordingly, can comprise the steps: when UE side generating pilot frequency sequence

Step 401, UE receive the instruction of base station, and described instruction includes the pilot frequency sequence of UE or the UE group the determined base station pilot identification used when generation;

Step 402, UE are according to described pilot identification generating pilot frequency sequence.

In enforcement, the pilot identification of base station instruction may be used for the rear base station of UE generation uplink pilot sequence transmission and utilizes identical sequential reception, also, after may be used for the transmission of base station generation descending pilot frequency sequence, UE generates same pilot frequency sequence according to this pilot identification and receives.

From Such analysis, why do not have orthogonality to be different because of Cell ID during generating pilot frequency sequence, cause basic sequence different.Therefore, for carrying out multiplexing UE, if will orthogonality be ensured, as long as their RS ID (pilot identification) is arranged to equally, generate identical basic sequence, then adopt different ports or cyclic shift.

In enforcement, determining the pilot frequency sequence of UE or UE group in base station when generating, during pilot identification used, can comprise:

Base station decides UE or the UE group pilot identification used when generating pilot frequency sequence in its sole discretion;

Or, base station and other base stations after the combined dispatching carrying out resource, consult to decide UE or the UE group pilot identification used when generating pilot frequency sequence.

Concrete, base station can determine that UE carries out RS ID parameter used when pilot frequency sequence generates, and at least can comprise as under type:

1, base station is decided UE in its sole discretion and is carried out RS ID parameter used when pilot frequency sequence generates;

2, after information interaction is carried out in the base station of base station and other communities, after determining to carry out the combined dispatching of resource, thus consult to decide UE carries out RS ID parameter used when pilot frequency sequence generates.

Pilot identification itself used when namely RS ID parameter can refer to generating pilot frequency sequence, also can refer to the map index etc. that UE or UE group can be made can to get generating pilot frequency sequence pilot identification used, adopt this appellation of RS ID parameter to be convenient to those skilled in the art understand and make simplicity of exposition in full.

Note also in enforcement, existing service Cell ID can be replaced with new RS ID (pilot identification), but RS ID itself can Bu Shi community ID, alternatively community ID just wherein more typical value.

Embodiment: suppose that the base station of Liang Ge community is mutual by channel information, determine two UE belonging to this Liang Ge community respectively, take identical downlink physical resource and carry out downlink transfer.In order to obtain descending DMRS sequence orthogonality between them, can their RS ID be arranged to identical, notify respective UE by base station, replace its Serving cell ID to generate for DMRS sequence, thus obtain identical DMRS basic sequence.Again by the information interaction of two cell base stations, allow these two UE adopt different DMRS port to transmit, thus obtain orthogonality.

In enforcement, pilot frequency sequence can comprise one of following pilot frequency sequence or its combination: DMRS, SRS (Sounding Reference signals, Sounding Reference Signal), CSI-RS (channel state information reference signal, channel state information reference signals), CRS (Common Reference Signal, public reference signal).

Concrete, the pilot frequency sequence in enforcement can comprise uplink pilot sequence and/or descending pilot frequency sequence, wherein:

1, uplink pilot sequence can comprise following one or several: DMRS, SRS;

2, descending pilot frequency sequence can comprise following one or several: CSI-RS, DMRS, CRS.

Below the processing mode of the concrete indicating mode of base station side and corresponding UE side is described.Also namely, by high-level signaling or PDCCH signaling instruction UE or UE group, it generates the processing mode of RS sequence RS ID parameter used in base station.

Base station instruction UE or UE group pilot identification, can comprise:

1), the base station pilot identification that UE or UE group can be indicated used when generating pilot frequency sequence by high-level signaling.

Accordingly, when described instruction is that base station is indicated by high-level signaling, when including the UE pilot identification used when generating pilot frequency sequence in instruction, UE can according to this pilot identification generating pilot frequency sequence.

2), base station can indicate UE or UE group to obtain the map index of generating pilot frequency sequence pilot identification used by high-level signaling.

Accordingly, when described instruction is that base station is indicated by high-level signaling, include the map index that UE obtains generating pilot frequency sequence pilot identification used in instruction, UE can according to generating pilot frequency sequence after this map index acquisition pilot identification.

3), base station can obtain the map index of generating pilot frequency sequence pilot identification used by PDCCH signaling instruction UE or UE group.

Accordingly, when described instruction is that base station is indicated by PDCCH signaling, include the map index that UE obtains generating pilot frequency sequence pilot identification used in instruction, UE can according to generating pilot frequency sequence after this map index acquisition pilot identification.

For aforesaid way 2), 3), when the map index of base station instruction UE or UE group acquisition generating pilot frequency sequence pilot identification used, can further include:

Base station and UE or UE group are made an appointment the mapping relations of described map index and pilot identification, or the mapping relations of the described map index of UE or UE group and pilot identification are notified by high-level signaling, generating pilot frequency sequence pilot identification used can be obtained according to described map index to make UE or UE group.

Accordingly, UE obtains pilot identification according to map index, can comprise:

The described map index of making an appointment according to base station and UE or UE group and the mapping relations of pilot identification determine pilot identification used;

Or the described map index notified by high-level signaling according to base station and the mapping relations of pilot identification determine pilot identification used.

In aforesaid way, base station generates RS ID used or RS ID by its RS sequence of high-level signaling instruction UE/UE group and configures; Base station both directly can indicate its RS ID of UE also its RS ID can be indicated to configure by high-level signaling by high-level signaling.The RS ID of different configuration correspondence can make an appointment, or by other high-level signalings notice UE.

Base station can also generate RS ID used by its RS sequence of PDCCH signaling instruction UE/UE group and configure.The RS ID of different configuration correspondence can make an appointment, or by other high-level signalings notice UE.

The pilot identification itself that RS ID is also namely used, RS ID configuration then refers to map index.

Two, base station and the UE mode of arranging.

Under the manner, UE obtains its RS sequence according to the rule appointed with base station to generate RS ID's used.

Fig. 5 is the process implementing procedure schematic diagram of pilot frequency sequence, as shown in the figure, can comprise the steps: when UE side and/or base station side generating pilot frequency sequence

Step 501, determine the pilot identification used when generating pilot frequency sequence by preset rules;

Step 502, according to described pilot identification generating pilot frequency sequence.

In enforcement, the program both can be implemented on base station, also can implement on UE.

As mentioned above, in enforcement, pilot frequency sequence can comprise one of following pilot frequency sequence or its combination: DMRS, SRS, CSI-RS, CRS.

In enforcement, described preset rules can comprise:

According to the Serving cell of UE and/or the cell ID of cooperation cell based on the formulae discovery of agreement pilot identification used when generating pilot frequency sequence;

Or, obtain pilot identification used when generating pilot frequency sequence according to the group ID of UE place cooperative cluster.

Concrete, fixing rule can be appointed with UE in base station, and UE obtains its RS sequence according to this rule and generates RS ID used, and base station does not need extra signaling instruction.Here rule can comprise:

RS ID used based on the formulae discovery of arranging according to the Serving cell of UE and/or the cell ID of cooperation cell;

Its RS ID is obtained according to the group ID of UE place cooperative cluster.

Be described with example more below.

Embodiment 1:

Base station directly indicates its pilot frequency sequence of UE to generate RS ID used by high-level signaling, and UE is when generating UL DMRS sequence, and replace community ID to obtain basic sequence and cyclic shift value with this ID, it is as follows that concrete sequence generates formula:

$r^{\mathrm{PUSCH}}(m\·M_{\mathrm{sc}}^{\mathrm{RS}}+n)=r_{u,v}^{\left(\mathrm{\α}\right)}\left(n\right),$ Wherein

Group sequence number u=(f _gh(n _s)+f _ss) mod30 and

$f_{\mathrm{ss}}^{\mathrm{PUSCH}}=(N_{\mathrm{ID}}^{\mathrm{RS}}\mathrm{mod}30+{\mathrm{\Δ}}_{\mathrm{ss}})\mathrm{mod}30$

Wherein Δ _ss∈ 0,1 ..., 29} is configured by high level, and pseudo random sequence c (i) is in the initial use of each radio frames carry out initialization, for base station is indicated to the RS ID of UE.

Sequence number in group:

Wherein pseudo random sequence c (i) is in the initial use of each radio frames carry out initialization.

In addition, its cyclic shift value:

α＝2πn _cs/12

$n_{\mathrm{cs}}=(n_{\mathrm{DMRS}}^{\left(1\right)}+n_{\mathrm{DMRS}}^{\left(2\right)}+n_{\mathrm{PN}}\left(n_s\right))\mathrm{mod}12$

Wherein $n_{\mathrm{PN}}\left(n_s\right)={\mathrm{\Σ}}_{i=0}^{7}c({8N}_{\mathrm{symb}}^{\mathrm{UL}}\·n_s+i)\·2^i,$ Pseudo random sequence c (i) is in the initial use of each radio frames carry out initialization. for base station is indicated to the RS ID of UE, instead of the position of original Cell ID.

Embodiment 2:

Base station generates RS ID used by its pilot frequency sequence of high-level signaling instruction UE of 1/2 bit and configures, and also namely instruction obtains the mapping relations of generating pilot frequency sequence cell ID used; Notify its possible RS ID by other high-level signalings, instruction content is as follows simultaneously:

Or

Or

After UE receives instruction index, after obtaining RS ID according to instruction index, carry out the generation of pilot frequency sequence.If instruction content uses the community ID of Serving cell as RS ID, then its pilot sequence generating method is identical with current scheme.If just content is the RS ID using high-level signaling instruction, then the RS ID of UE high-level signaling instruction replaces the community ID in current generation scheme to carry out the generation of pilot frequency sequence.When such as generating descending DMRS sequence with RS ID, its formula is as follows:

$r\left(m\right)=\frac{1}{\sqrt{2}}(1-2\·c\left(2m\right))+j\frac{1}{\sqrt{2}}(1-2\·c(2m+1)),$

$m=\left\{\begin{array}{cc}\mathrm{0,1},...,12N_{\mathrm{RB}}^{\max ,\mathrm{DL}}-1& \mathrm{normal\; cyclic\; prefix}\\ \mathrm{0,1},...,16N_{\mathrm{RB}}^{\max ,\mathrm{DL}}-1& \mathrm{extended\; cyclic\; prefix}\end{array}\right.$

Wherein for descending maximum RB quantity, pseudo random sequence c (i) is carrying out initialization in order to lower formula:

N _sfor time-gap number, for the RS ID of UE.

Embodiment 3:

Base station generates RS ID used by its pilot frequency sequence of PDCCH signaling instruction UE of 1/2 bit and configures, and can notify by other high-level signalings the RS ID that the configuration of its possible difference is corresponding, content is as follows simultaneously:

Or

Or

After UE receives instruction index, after obtaining RS ID according to instruction index, carry out the generation of pilot frequency sequence.If instruction content uses the community ID of Serving cell as RS ID, then its pilot sequence generating method is identical with current scheme.If just content is the RS ID using high-level signaling instruction, then the RS ID of UE high-level signaling instruction replaces the community ID in current generation scheme to carry out the generation of pilot frequency sequence.

Embodiment 4:

UE and base station agreement RS ID used according to the Serving cell of UE and the cell ID of cooperation cell based on the formulae discovery of arranging, suppose that the community ID comprised in the cooperative cluster at UE place is respectively Cell_ID_1, Cell_ID_2 and Cell_ID_3, then UE calculates RS ID used according to these three community ID, and method is as follows:

$N_{\mathrm{ID}}^{\mathrm{RS}}=(\mathrm{Cell}\_\mathrm{ID}\_1*\mathrm{Cell}\_\mathrm{ID}\_2*\mathrm{Cell}\_\mathrm{ID}\_3+\mathrm{Cell}\_\mathrm{ID}\_1+\mathrm{Cell}\_\mathrm{ID}\_2+\mathrm{Cell}\_\mathrm{ID}\_3)\mathrm{mod}N$

Wherein N is maximum Cell_ID, and in current standard, value is 504.

Based on same inventive concept, base station, subscriber equipment is additionally provided in the embodiment of the present invention, the principle of dealing with problems due to these equipment is similar to a kind of processing method of pilot frequency sequence, and therefore the enforcement of these equipment see the enforcement of method, can repeat part and repeat no more.

Fig. 6 is architecture of base station schematic diagram, as shown in the figure, can comprise in base station:

Determination module 601, for determining the pilot identification that the pilot frequency sequence of UE or UE group is used when generating;

Indicating module 602, is used to indicate the described pilot identification of UE or UE group.

In enforcement, can comprise in determination module: the first determining unit and/or the second determining unit, wherein:

First determining unit, for deciding UE or UE group pilot identification used when generating pilot frequency sequence in its sole discretion;

Second determining unit, for other base stations after determining the combined dispatching carrying out resource, consult to decide UE or the UE group pilot identification used when generating pilot frequency sequence.

In enforcement, determination module can also be further used for the pilot frequency sequence determining to comprise one of following pilot frequency sequence or its combination: DMRS, SRS, CSI-RS, CRS.

In enforcement, indicating module can comprise as one of lower unit or its combination:

First indicating member, for by high-level signaling instruction UE or UE group pilot identification used when generating pilot frequency sequence;

Second indicating member, for obtaining the map index of generating pilot frequency sequence pilot identification used by high-level signaling instruction UE or UE group;

3rd indicating member, for obtaining the map index of generating pilot frequency sequence pilot identification used by PDCCH signaling instruction UE or UE group.

In enforcement, indicating module can also be further used for when indicating UE or UE group to obtain the map index of generating pilot frequency sequence pilot identification used, to make an appointment the mapping relations of described map index and pilot identification with UE or UE group, or the mapping relations of the described map index of UE or UE group and pilot identification are notified by high-level signaling, generating pilot frequency sequence pilot identification used can be obtained according to described map index to make UE or UE group.

Fig. 7 is user device architecture schematic diagram, as shown in the figure, can comprise in UE:

Receiver module 701, for receiving the instruction of base station, the pilot identification that the pilot frequency sequence that described instruction includes UE or the UE group determined base station is used when generating;

Generation module 702, for according to described pilot identification generating pilot frequency sequence.

In enforcement, generation module can also be further used for generating the pilot frequency sequence comprising one of following pilot frequency sequence or its combination: DMRS, SRS, CSI-RS, CRS.

In enforcement, generation module can comprise as one of lower unit or its combination:

First generation unit, for being that base station is indicated by high-level signaling in described instruction, when including the UE pilot identification used when generating pilot frequency sequence in instruction, according to this pilot identification generating pilot frequency sequence;

Second generation unit, for being that base station is indicated by high-level signaling in described instruction, when including the map index of UE acquisition generating pilot frequency sequence pilot identification used in instruction, according to generating pilot frequency sequence after this map index acquisition pilot identification;

3rd generation unit, for being that base station is indicated by PDCCH signaling in described instruction, when including the map index of UE acquisition generating pilot frequency sequence pilot identification used in instruction, according to generating pilot frequency sequence after this map index acquisition pilot identification.

In enforcement, generation module can also be further used for when obtaining pilot identification according to map index, and the described map index of making an appointment according to base station and UE or UE group and the mapping relations of pilot identification determine pilot identification used; Or the described map index notified by high-level signaling according to base station and the mapping relations of pilot identification determine pilot identification used.

Fig. 8 is the treatment facility structural representation of pilot frequency sequence, as shown in the figure, can comprise in a device:

Determination module 801, for determining the pilot identification used when generating pilot frequency sequence by preset rules;

Generation module 802, for according to described pilot identification generating pilot frequency sequence.

In enforcement, the treatment facility of pilot frequency sequence both can be positioned at base station, also can be positioned at UE.

In enforcement, generation module can also be further used for generating the pilot frequency sequence comprising one of following pilot frequency sequence or its combination: DMRS, SRS, CSI-RS, CRS.

In enforcement, determination module can also be further used for determining the pilot identification used when generating pilot frequency sequence by following preset rules:

According to the Serving cell of UE and/or the cell ID of cooperation cell based on the formulae discovery of agreement pilot identification used when generating pilot frequency sequence; Or, obtain pilot identification used when generating pilot frequency sequence according to the group ID of UE place cooperative cluster.

For convenience of description, each several part of the above device is divided into various module or unit to describe respectively with function.Certainly, the function of each module or unit can be realized in same or multiple software or hardware when implementing of the present invention.

As seen from the above-described embodiment, in the technical scheme that the embodiment of the present invention provides, parameter RS ID used when its pilot frequency sequence of base station instruction UE/UE group generates, in order to replace sequence in prior art to generate community ID used, thus achieve the mutual interference of RS between the UE that reduces and carry out resource multiplex.Concrete:

Base station can indicate RS sequence to generate RS ID used or RS ID by high-level signaling and configure;

Base station can generate RS ID used by PDCCH signaling instruction RS sequence and configure;

UE can obtain its RS sequence according to the rule appointed with base station and generate RS ID used.

Obviously, the technical scheme that the embodiment of the present invention provides can be dispatched the UE carrying out resource multiplex and be adopted identical RS basic sequence, thus utilizes the RS orthogonality between different RS configuration guarantee UE, thus improves the performance of channel estimating; Further, signaling consumption is less, flexible configuration.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (14)

1. a processing method for pilot frequency sequence, is characterized in that, comprises the steps:

The pilot identification that the pilot frequency sequence of user equipment (UE) is used when generating is determined in base station;

Pilot identification described in base station instruction UE, receives to generate same pilot frequency sequence by UE according to described pilot identification after base station generation descending pilot frequency sequence sends;

Wherein, pilot frequency sequence comprises one of following pilot frequency sequence or its combination: demodulated reference signal DMRS, channel state information reference signals CSI-RS, public reference signal CRS.

2. the method for claim 1, is characterized in that, base station is determined to comprise the pilot identification that the pilot frequency sequence of UE is used when generating:

Base station decides the UE pilot identification used when generating pilot frequency sequence in its sole discretion;

Or, base station and other base stations after the combined dispatching carrying out resource, the pilot identification that consult to decide UE is used when generating pilot frequency sequence.

3. the method as described in as arbitrary in claim 1 or 2, is characterized in that, pilot identification described in base station instruction UE, comprising:

Base station is by high-level signaling instruction UE pilot identification used when generating pilot frequency sequence;

Base station obtains the map index of generating pilot frequency sequence pilot identification used by high-level signaling instruction UE;

Base station obtains the map index of generating pilot frequency sequence pilot identification used by physical downlink control channel PDCCH signaling instruction UE.

4. method as claimed in claim 3, is characterized in that, when base station instruction UE obtains the map index of generating pilot frequency sequence pilot identification used, comprises further:

Base station and UE make an appointment the mapping relations of described map index and pilot identification, or by the mapping relations of map index described in high-level signaling notice UE and pilot identification, can obtain generating pilot frequency sequence pilot identification used to make UE according to described map index.

5. a processing method for pilot frequency sequence, is characterized in that, comprises the steps:

UE receives the instruction of base station, and described instruction includes the pilot frequency sequence of the UE that base station the is determined pilot identification used when generating;

UE, according to described pilot identification generating pilot frequency sequence, receives to generate same pilot frequency sequence by UE according to described pilot identification after base station generation descending pilot frequency sequence sends;

Wherein, pilot frequency sequence comprises one of following pilot frequency sequence or its combination: DMRS, CSI-RS, CRS.

6. method as claimed in claim 5, is characterized in that,

Described instruction is that base station is indicated by high-level signaling, includes the pilot identification that UE is used when generating pilot frequency sequence in instruction, and UE is according to this pilot identification generating pilot frequency sequence;

Described instruction is that base station is indicated by high-level signaling, includes the map index that UE obtains generating pilot frequency sequence pilot identification used in instruction, and UE is according to generating pilot frequency sequence after this map index acquisition pilot identification;

Described instruction is that base station is indicated by PDCCH signaling, includes the map index that UE obtains generating pilot frequency sequence pilot identification used in instruction, and UE is according to generating pilot frequency sequence after this map index acquisition pilot identification.

7. method as claimed in claim 6, it is characterized in that, UE obtains pilot identification according to map index, comprising:

The described map index of making an appointment according to base station and UE and the mapping relations of pilot identification determine pilot identification used;

Or the described map index notified by high-level signaling according to base station and the mapping relations of pilot identification determine pilot identification used.

8. a base station, is characterized in that, comprising:

Determination module, for determining the pilot identification that the pilot frequency sequence of UE is used when generating;

Indicating module, is used to indicate pilot identification described in UE, receives to generate same pilot frequency sequence by UE according to described pilot identification after base station generation descending pilot frequency sequence sends;

Wherein, determination module is further used for determining to comprise one of following pilot frequency sequence or its pilot frequency sequence combined: DMRS, CSI-RS, CRS.

9. base station as claimed in claim 8, it is characterized in that, determination module comprises: the first determining unit and/or the second determining unit, wherein:

First determining unit, for deciding UE pilot identification used when generating pilot frequency sequence in its sole discretion;

Second determining unit, for other base stations after the combined dispatching carrying out resource, the pilot identification that consult to decide UE is used when generating pilot frequency sequence.

10. the base station as described in as arbitrary in claim 8 or 9, is characterized in that, indicating module comprises as one of lower unit or its combination:

First indicating member, for by high-level signaling instruction UE pilot identification used when generating pilot frequency sequence;

Second indicating member, for obtaining the map index of generating pilot frequency sequence pilot identification used by high-level signaling instruction UE;

3rd indicating member, for obtaining the map index of generating pilot frequency sequence pilot identification used by PDCCH signaling instruction UE.

11. base stations as claimed in claim 10, it is characterized in that, indicating module is further used for when indicating UE to obtain the map index of generating pilot frequency sequence pilot identification used, to make an appointment the mapping relations of described map index and pilot identification with UE, or the mapping relations of map index and pilot identification described in UE are notified by high-level signaling, generating pilot frequency sequence pilot identification used can be obtained according to described map index to make UE.

12. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Receiver module, for receiving the instruction of base station, the pilot identification that the pilot frequency sequence that described instruction includes the UE that base station is determined is used when generating;

Generation module, for according to described pilot identification generating pilot frequency sequence, receives to generate same pilot frequency sequence by UE according to described pilot identification after base station generation descending pilot frequency sequence sends;

Wherein, generation module is further used for generating the pilot frequency sequence comprising one of following pilot frequency sequence or its combination: DMRS, CSI-RS, CRS.

13. subscriber equipmenies as claimed in claim 12, is characterized in that, generation module comprises as one of lower unit or its combination:

First generation unit, for being that base station is indicated by high-level signaling in described instruction, when including the UE pilot identification used when generating pilot frequency sequence in instruction, according to this pilot identification generating pilot frequency sequence;

Second generation unit, for being that base station is indicated by high-level signaling in described instruction, when including the map index of UE acquisition generating pilot frequency sequence pilot identification used in instruction, according to generating pilot frequency sequence after this map index acquisition pilot identification;

3rd generation unit, for being that base station is indicated by PDCCH signaling in described instruction, when including the map index of UE acquisition generating pilot frequency sequence pilot identification used in instruction, according to generating pilot frequency sequence after this map index acquisition pilot identification.

14. subscriber equipmenies as claimed in claim 13, it is characterized in that, generation module is further used for when obtaining pilot identification according to map index, and the described map index of making an appointment according to base station and UE and the mapping relations of pilot identification determine pilot identification used; Or the described map index notified by high-level signaling according to base station and the mapping relations of pilot identification determine pilot identification used.