CN103391629A

CN103391629A - Reference signal configuration method and system

Info

Publication number: CN103391629A
Application number: CN2012101443188A
Authority: CN
Inventors: 郭森宝; 李儒岳; 毕峰; 孙云锋; 任敏; 陈东丽
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2012-05-10
Filing date: 2012-05-10
Publication date: 2013-11-13
Anticipated expiration: 2032-05-10
Also published as: CN103391629B

Abstract

The invention provides a reference signal configuration method and system. The method includes the step that a base station side configures zero-power CSI-RS resource signals for a terminal side, wherein the zero-power CSI-RS resource signals include information used for indicating resource elements interfering measurement, and information used for indicating resource elements for rate matching, and the zero-power CSI-RS resource signals are used for indicating resource elements which are not used for down-load data by the terminal side.

Description

A kind of collocation method of reference signal and system

Technical field

The present invention relates to the communications field, relate in particular to a kind of collocation method and system of reference signal.

Background technology

Long Term Evolution (Long Term Evolution is called for short LTE) system after having experienced the several versions of R8/9/10, is accurately studied again the R11 technology successively.At present part R8 product starts progressively commercially, and R9 and R10 remain further product programming.

experiencing R8 and R9 stage, R10 has increased again a lot of new characteristics on the above two basis, DMRS (Demodulation Reference Signal for example, demodulated reference signal), CSI-RS (Channel State Information Reference Signal, channel state information reference signals) the pilot tone characteristic such as, the transmission such as 8 antenna supports and feedback characteristics etc., eICIC (ehanced Inter-Cell Interference Cancellin particularly, presence of intercell interference counteracting enhancing) technology is on the basis of having considered R8/9ICIC, further consider the interference avoidance technique between residential quarter.Consider mainly that at the R10 initial stage in stage the area interference under homogenous networks avoids for the technology that solves interference problem between residential quarter, wherein the consideration eICIC technology of main flow and CoMP (Coordinated Multi-point, multipoint cooperative) technology.CoMP is as the term suggests be exactly that a plurality of node cooperations send data to one or more UE at identical running time-frequency resource or different running time-frequency resources.Technology can reduce the interference between residential quarter like this, improves the throughput of cell edge, enlarges residential quarter and covers.But owing to having considered heterogeneous network in the discussion later stage, introduced more scene, the time restriction that the complexity of CoMP technology and R10 discuss, final decision is not introduced extra CoMP standardized content in the R10 stage, but the demand that can consider the CoMP part at design CSI-RS designs, so the CoMP technology is not just carried out further discussion after the 60bis meeting.

The configuration information of R10CSI-RS mainly comprises non-zero power CSI-RS configuration signal and zero energy CSI-RS configuration signal.Non-zero power CSI-RS configuration is main to be considered to come the running time-frequency resource position of each non-zero power CSI-RS of notification terminal side a subframe by the mode of utilizing table index, as shown in Table1 and Table2, and the number that configures the running time-frequency resource that notification terminal side non-zero power CSI-RS takies by the antenna port number corresponding antenna port and utilize sub-frame offset and periodic key to come the notification terminal side in the subframe that receives CSI-RS, as shown in Table3.

Table 1:CSI-RS is at the resource mapping of general cyclic prefix sub-frame configuration

Table 2:CSI-RS is at the resource mapping of extended cyclic prefix sub-frame configuration.

Table?3：

CSI-RS

Sub-frame configuration

The CSI-RS of zero energy utilizes the bitmap sequence of 16 bits to come the notification terminal side to need the resource element of rate-matched.The subframe at sub-frame offset and cycle notification terminal side zero energy CSI-RS place, as shown in Figure3.

The purpose of non-zero power CSI-RS is mainly to allow end side measure CSI and anti-Kui Give base station side.Thereby the main purpose of zero energy CSI-RS is to improve the accuracy of measurement CSI for the interference of CSI-RS in order to reduce data service, at the resource location of the CSI-RS of base station side notification terminal side zero energy, PDSCH or other reference signals or channel are not placed at the resource location of the CSI-RS of zero energy in the end side base station.

R11 need to consider the impact of CoMP for standard, particularly needs to consider configuration and the zero energy CSI-RS resource distribution of interferometry resource.Discuss in up-to-date 68bis meeting, utilize the CSI-RS resource measurement interference of zero energy can obtain Interference Estimation performance more accurately, simultaneously also can the compatible R10 version of part terminal, make it by configuration zero energy CSI-RS, avoid interference and measure the resource performance loss that punching causes for PDSCH.If introduce the mode of zero energy CSI-RS measurements interference in the R11 stage after, the rate-matched resource that need to identify of end side need to comprise following three kinds so:

1. non-zero power CSI-RS resource.Refer to that mainly base station side sends CSI-RS according to the mode of 8 or 4 ports, end side can only maximumly be supported at this moment will carry out rate-matched in other port position that can not identify by 4 or 2 ports.Perhaps base station side sends CSI-RS, but end side adopts feedback model 1-0, and 2-0 or 3-0 mode, at this moment do not need to configure the CSI-RS port, only needs configuration zero energy CSI-RS to get final product.

2. zero energy CSI-RS resource is used for reducing the interference that data service is measured for CSI-RS.

3. zero energy CSI-RS resource is used for end side measurements interference on the resource location of correspondence.

Identical for the 1st, the 2nd purpose with the zero energy CSI-RS configuration of R10, be that the zero energy CSI-RS that increases newly is used for interferometry for the 3rd.So for the demand of R11, the scheme that also the configuration information of zero energy CSI-RS is not managed in prior art.

For the simplicity of writing, the zero energy CSI-RS of temporary transient title interferometry is IMR (Interference Measurement Resource, the interferometry resource), claim that the zero energy CSI-RS of rate-matched is RMR (Rate Matching Resource, rate-matched resource).

Summary of the invention

The invention provides a kind of collocation method and system of reference signal, the technical problem that solve is how to the CSI-RS of configuration zero energy in LTE system R11.

, for solving the problems of the technologies described above, the invention provides following technical scheme:

The collocation method of a kind of interferometry resource and zero energy channel state information reference signals CSI-RS comprises:

Base station side is the information and the information that is used to refer to the resource element of rate-matched that end side configuration zero energy CSI-RS resource signaling comprises the resource element that is used to refer to interferometry, and wherein said zero energy CSI-RS resource signaling indicating terminal side is not used in the resource element of downlink transmission data.

The sending method of the configuration information of a kind of interferometry resource and zero energy channel state information reference signals CSI-RS comprises:

Base station side is that end side is the information and the information that is used to refer to the resource element of rate-matched that on end side, zero energy CSI-RS generates the resource element that is used to refer to interferometry, is not used in the resource element of downlink transmission data in order to the indicating terminal side;

Base station side sends the described information and the information that is used to refer to the resource element of rate-matched that is used to refer to the resource element of interferometry to end side.

A kind of configuration-system of reference signal comprises:

Inking device, be used to end side configuration zero energy CSI-RS resource signaling to comprise the information and the information that is used to refer to the resource element of rate-matched of the resource element that is used to refer to interferometry, wherein said zero energy CSI-RS resource signaling indicating terminal side is not used in the resource element of downlink transmission data.

A kind of transmitting system of configuration information of reference signal comprises:

Generating apparatus, being used to end side is the information and the information that is used to refer to the resource element of rate-matched that on end side, zero energy CSI-RS generates the resource element that is used to refer to interferometry, is not used in the resource element of downlink transmission data in order to the indicating terminal side;

Dispensing device, be used for sending the described information and the information that is used to refer to the resource element of rate-matched that is used to refer to the resource element of interferometry to end side.

By being end side configuration interferometry resource and rate-matched resource, realization, in the configuration of the CSI-RS of the zero energy of LTE system R11, meets R11 user's configuration needs.

Description of drawings

Fig. 1 is the schematic flow sheet of the sending method embodiment of the configuration information of reference signal in embodiment 10;

Fig. 2 is the structural representation of transmitting system embodiment of the configuration information of reference signal provided by the invention.

Embodiment

For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.Need to prove, in the situation that do not conflict, the embodiment in the application and the feature in embodiment be combination in any mutually.

At first, the invention provides a kind of collocation method of reference signal, comprising:

Base station side is the information and the information that is used to refer to the resource element of rate-matched that end side configuration zero energy interferometry resource and zero energy channel state information reference signals CSI-RS resource signaling comprise the resource element that is used to refer to interferometry, and wherein said zero energy CSI-RS resource signaling indicating terminal side is not used in the resource element of downlink transmission data.

Embodiment 1

In the present embodiment, UE1 is R11 or the user of highest version more, and base station side is end side configuration two cover zero energy CSI-RS configuration informations by the high-level signaling of UE special use, is not used in the resource element of the transmission of data in order to the indicating terminal side.Wherein a cover zero energy CSI-RS configuration information is used to refer to the information of the resource element of interferometry, and an other cover is used for the information of resource element of indicated speed coupling.

Below above-mentioned two covers are introduced respectively:

First set is used to refer to the information of the resource element of interferometry, indicate the time-frequency position of resource element in a subframe of corresponding interferometry with 7 bits, in wherein said 7 bits, front 2 continuous bits are used to refer to its resource that takies to number, and remaining 5 continuous bits represent the resource location of the resource element of interferometry.If before base station side indication interferometry resource element information, dibit is 00, the resource that represents this interferometry resource occupation is 1 to number, the indicating terminal side adopts the resource indication of 2 ports, and it is the resource of 0 correspondence that other 00000 bit indicating terminal side adopts index in Table1 or Table2.If base station side indication interferometry resource element information is that front dibit is 01, the indicating terminal side adopts the resource indicating mode of 4 ports, and it is the resource of 0 correspondence that other 00000 bit indicating terminal side adopts index in Table1 or Table2.If base station side indication interferometry resource element information is that front dibit is 10, the indicating terminal side adopts the resource indicating mode of 8 ports, and it is the resource of 0 correspondence that other 00000 bit indicating terminal side adopts index in Table1 or Table2.

The other cover configuration information of information that is used to refer to the resource element of rate-matched adopts the method notification terminal side of bitmap sequence, and the bitmap sequence that wherein adopts can be 8 bits, 16 bits or 32 bits.Wherein for totally 8 of all possible positions of 8 bits indications 8 port patterns, totally 16 of all possible positions of 16 bits indication 4 port patterns, totally 32 of all possible positions of 32 bits indication 2 port patterns.The resource of indicating in same bimap sequence adopts identical sub-frame offset and cycle.Wherein interferometry resource and rate-matched resource information all adopt independently cycle and sub-frame offset configuration.The zero energy CSI-RS configuration information that is used to indicate rate-matched resource and interferometry resource can adopt the cycle of Table3 and the configuration mode of sub-frame offset configuration mode or employing 40*N bit bitmap sequence, and wherein N is a positive integer greater than 0.Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 2

In this enforcement, UE1 is R11 or the user of highest version more.Base station side configures the indicating terminal side to be not used in the resource element of the transmission of data by the high-level signaling configurating terminal side three cover zero energy CSI-RS of UE special use.Wherein a cover zero energy CSI-RS configuration information is used to refer to the resource element information of interferometry, and other two covers all are used to refer to rate-matched resource element information.

First set is used for the resource element information of interferometry, indicate the time-frequency position of corresponding interferometry resource element information with 7 bits, if before base station side indication interferometry resource element information, dibit is 00, the indicating terminal side adopts the resource indication of 2 ports, and it is the resource of 0 correspondence that other 00000 bit indicating terminal side adopts index in Table1 or Table2.If base station side indication interferometry resource element information is that front dibit is 01, the indicating terminal side adopts the resource indication of 4 ports, and it is the resource of 0 correspondence that other 00000 bit indicating terminal side adopts index in Table1 or Table2.If base station side indication interferometry resource element information is that front dibit is 10, the indicating terminal side adopts the resource indication of 8 ports, and it is the resource of 0 correspondence that other 00000 bit indicating terminal side adopts index in Table1 or Table2.

Other two covers are used for indicated speed coupling resource element information and adopt the method notification terminal side of bitmap sequence, can adopt 8 bits, the bitmap sequence length method of 16 bits or 32 bits, for 8 of all possible positions of 8 bits indications 8 port patterns, 16 of all possible positions of 16 bit indication 4 port patterns, 32 of all possible positions of 32 bit indication 2 port patterns.The resource of indicating in bimap sequence adopts identical sub-frame offset and cycle.Two overlap resource separate configurations sub-frame offset and the cycle of indicating in different bimap sequences.Wherein interferometry resource and rate-matched resource information adopt independently cycle and sub-frame offset configuration.The zero energy CSI-RS configuration information that is used to indicate rate-matched resource and interferometry resource can adopt the cycle of Table3 and the configuration mode of sub-frame offset configuration mode or employing 40*N bit bitmap sequence, and wherein N is a positive integer greater than 0.Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 3

In the present embodiment, UE1 is R11 or the user of highest version more, and base station side configures the indicating terminal side to be not used in the resource element of the transmission of data by the high-level signaling configurating terminal side three cover zero energy CSI-RS of UE special use.Wherein a cover zero energy CSI-RS configuration information is used to refer to the resource element information of interferometry, and other two overlap the indicated speed coupling resource element information that is used for.

The resource element information that is used for interferometry for first set:

Indicate the time-frequency position of corresponding interferometry resource element information with 5 bits, adopt end side in Table1 or Table2 to adopt the indicating mode of the resource of 2 ports to indicate the running time-frequency resource position, adopting index in Table1 or Table2 as 00000 bit indicating terminal side is the resource of 0 correspondence;

Indicate the time-frequency position of corresponding interferometry resource element information with 4 bits, adopt end side in Table1 or Table2 to adopt the indicating mode of the resource of 4 ports to indicate the running time-frequency resource position, adopting index as 0000 bit indicating terminal side is the resource of 0 correspondence;

Indicate the time-frequency position of corresponding interferometry resource element information with 3 bits, adopt end side in Table1 or Table2 to adopt the indicating mode of the resource of 8 ports to indicate the running time-frequency resource position, adopting index in Table1 or Table2 as 000 bit indicating terminal side is the resource of 0 correspondence.

Other two covers are used for indicated speed coupling resource element information and adopt the method notification terminal side of bitmap sequence, can adopt 8 bits, the bitmap sequence length method of 16 bits or 32 bits, for 8 of all possible positions of 8 bits indications 8 port patterns, 16 of all possible positions of 16 bit indication 4 port patterns, 32 of all possible positions of 32 bit indication 2 port patterns.

Explanation for sub-frame offset and cycle:

The resource of indicating in same bimap sequence adopts identical sub-frame offset and cycle.

Resource separate configurations sub-frame offset and the cycle of indicating in the two different bimap sequences of cover, sub-frame offset and the cycle of two cover configuration informations that namely is all indicated speed coupling resource element information is all different.

Diverse two cover configuration informations, namely interferometry resource and rate-matched resource information, adopt independently cycle and sub-frame offset configuration.

The configuration mode of the cycle of above-mentioned three cover configuration informations and the cycle that sub-frame offset all can adopt Table3 and sub-frame offset configuration mode or employing 40*N bit bitmap sequence, wherein N is a positive integer greater than 0.

Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 4

If first set is used for the resource element information of interferometry, indicate the time-frequency position of corresponding interferometry resource element information with the bitmap sequence, if end side adopts the resource indication of 2 ports, adopt the bitmap sequence length method of 32 bits, 32 of all possible positions of 32 bit indication 2 port patterns., if end side adopts the resource indication of 4 ports, adopt the bitmap sequence length method of 16 bits, 16 of all possible positions of 16 bit indication 4 port patterns., if end side adopts the resource indication of 8 ports, adopt the bitmap sequence length method of 8 bits, 8 of all possible positions of 8 bit indication 8 port patterns.

Embodiment 5

In the present embodiment, UE1 is R11 or the user of highest version more, and base station side configures the indicating terminal side to be not used in the resource element of the transmission of data by the high-level signaling configurating terminal side three cover zero energy CSI-RS of UE special use.Wherein first set zero energy CSI-RS configuration information is used to refer to resource element information and the rate-matched resource element information of interferometry, and other two overlap the indicated speed coupling resource element information that is used for.

First set zero energy CSI-RS configuration information is indicated the time-frequency position of corresponding resource element information with the bitmap sequence, if end side adopts the resource indication of 2 ports, adopt the bitmap sequence length method of 32 bits, 32 of all possible positions of 32 bit indication 2 port patterns., if end side adopts the resource indication of 4 ports, adopt the bitmap sequence length method of 16 bits, 16 of all possible positions of 16 bit indication 4 port patterns., if end side adopts the resource indication of 8 ports, adopt the bitmap sequence length method of 8 bits, 8 of all possible positions of 8 bit indication 8 port patterns.base station side is indicated the position of the correspondence of interferometry resource in first set zero energy CSI-RS resource distribution by an index in addition, for example first set zero energy CSI-RS resource distribution is bitmap sequence { 0,111 0,000 0010 0000} of 16 bits, be wherein that 1 resource location number corresponding to bit is 4, at this moment index adopts 2 bit indications, 00 first location resource of indication is used for the interferometry resource, second location resource of 01 indication is used for the interferometry resource, the 3rd location resource of 10 indications is used for the interferometry resource, the 4th location resource of 11 indications is used for the interferometry resource.

Other two covers are used for indicated speed coupling resource element information and adopt the method notification terminal side of bitmap sequence, can adopt 8 bits, the bitmap sequence length method of 16 bits or 32 bits, for 8 of all possible positions of 8 bits indications 8 port patterns, 16 of all possible positions of 16 bit indication 4 port patterns, 32 of all possible positions of 32 bit indication 2 port patterns.The resource of indicating in bimap sequence adopts identical sub-frame offset and cycle.Two overlap resource separate configurations sub-frame offset and the cycle of indicating in different bimap sequences.The zero energy CSI-RS configuration information that is used to indicate rate-matched resource and interferometry resource can adopt the cycle of Table3 and the configuration mode of sub-frame offset configuration mode or employing 40*N bit bitmap sequence, and wherein N is a positive integer greater than 0.Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 6

First set zero energy CSI-RS configuration information is indicated the time-frequency position of corresponding resource element information with the bitmap sequence, if end side adopts the resource indication of 2 ports, adopt the bitmap sequence length method of 32 bits, 32 of all possible positions of 32 bit indication 2 port patterns., if end side adopts the resource indication of 4 ports, adopt the bitmap sequence length method of 16 bits, 16 of all possible positions of 16 bit indication 4 port patterns., if end side adopts the resource indication of 8 ports, adopt the bitmap sequence length method of 8 bits, 8 of all possible positions of 8 bit indication 8 port patterns.

base station side is indicated the position of the correspondence of interferometry resource in first set zero energy CSI-RS resource distribution by a bitmap sequence in addition, for example first set zero energy CSI-RS resource distribution is bitmap sequence { 0,111 0,000 0010 0000} of 16 bits, be wherein that 1 resource location number corresponding to bit is 4, at this moment the bitmap sequence adopts 4 bit indications, 1000 first location resource of indication are used for the interferometry resource, the resource of 1001 first positions of indication and the 4th position is used for the interferometry resource, the 3rd location resource of 0010 indication is used for the interferometry resource, the 4th location resource of 0001 indication is used for interferometry resource etc.

Other two covers are used for indicated speed coupling resource element information and adopt the method notification terminal side of bitmap sequence, can adopt 8 bits, the bitmap sequence length method of 16 bits or 32 bits, for 8 of all possible positions of 8 bits indications 8 port patterns, 16 of all possible positions of 16 bit indication 4 port patterns, 32 of all possible positions of 32 bit indication 2 port patterns.The resource of indicating in bimap sequence adopts identical sub-frame offset and cycle.

Resource separate configurations sub-frame offset and the cycle of indicating in the bimap sequence in the two different configuration informations of cover.But the sub-frame offset of two bitmap sequences that same configuration information uses is identical with the cycle, and namely the bitmap sequence of first set zero energy CSI-RS resource adopts identical sub-frame offset and cycle configuration with interferometry resource indication bitmap sequence.

The zero energy CSI-RS configuration information that is used to indicate rate-matched resource and interferometry resource can adopt the cycle of Table3 and the configuration mode of sub-frame offset configuration mode or employing 40*N bit bitmap sequence, and wherein N is a positive integer greater than 0.Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 7

First set zero energy CSI-RS configuration information is indicated the time-frequency position of corresponding resource element information with the bitmap sequence, if end side adopts the resource indication of 2 ports, adopt the bitmap sequence length method of 32 bits, 32 of all possible positions of 32 bit indication 2 port patterns., if end side adopts the resource indication of 4 ports, adopt the bitmap sequence length method of 16 bits, 16 of all possible positions of 16 bit indication 4 port patterns., if end side adopts the resource indication of 8 ports, adopt the bitmap sequence length method of 8 bits, 8 of all possible positions of 8 bit indication 8 port patterns.Base station side is indicated the position of the correspondence of interferometry resource in first set zero energy CSI-RS resource distribution by a bitmap sequence in addition, for example first set zero energy CSI-RS resource distribution is bitmap sequence { 0,111 0,000 0010 0000} of 16 bits, be wherein that 1 resource location number corresponding to bit is 4, corresponding each 1 assignment configuration is sub-frame offset and cycle configuration independently.At this moment the bitmap sequence adopts 4 bit indications, 1000 first location resource of indication are used for the interferometry resource, the resource of 1001 first positions of indication and the 4th position is used for the interferometry resource, the 3rd location resource of 0010 indication is used for the interferometry resource, and the 4th location resource of 0001 indication is used for interferometry resource etc.

Except first set zero energy CSI-RS resource distribution, the resource of indicating in the bimap sequence in a cover configuration information adopts identical sub-frame offset and cycle.Two overlap resource separate configurations sub-frame offset and the cycle of indicating in different bimap sequences.The zero energy CSI-RS configuration information that is used to indicate rate-matched resource and interferometry resource can adopt the cycle of Table3 and the configuration mode of sub-frame offset configuration mode or employing 40*N bit bitmap sequence, and wherein N is a positive integer greater than 0.Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 8

Suppose that UE1 is R11 or the user of highest version more, base station side configures the indicating terminal side to be not used in the resource element of the transmission of data by the high-level signaling configurating terminal side one cover zero energy CSI-RS of UE special use.Wherein this cover zero energy CSI-RS configuration information is used to refer to resource element information and the rate-matched resource element information of interferometry.Zero energy CSI-RS configuration information is indicated the time-frequency position of corresponding resource element information with the bitmap sequence, if end side adopts the resource indication of 2 ports, adopt the bitmap sequence length method of 32 bits, 32 of all possible positions of 32 bit indication 2 port patterns., if end side adopts the resource indication of 4 ports, adopt the bitmap sequence length method of 16 bits, 16 of all possible positions of 16 bit indication 4 port patterns., if end side adopts the resource indication of 8 ports, adopt the bitmap sequence length method of 8 bits, 8 of all possible positions of 8 bit indication 8 port patterns.

In this cover configuration information, bit value is that 1 the corresponding resource of bit all disposes independently sub-frame offset and cycle.

Base station side is indicated the position of the correspondence of interferometry resource in first set zero energy CSI-RS resource distribution by a bitmap sequence in addition.Specifically, described base station side is indicated the position of the correspondence of resource element in this cover configuration information of interferometry by a bitmap sequence, wherein the length of this bitmap sequence is total number of 1 for bit value in this cover configuration information, and in this bitmap sequence, numerical value is that 1 the corresponding resource in position is for being used for the resource element of interferometry.For example first set zero energy CSI-RS resource distribution is that { 0,111 0,000 0010 0000}, be wherein that 1 resource location number corresponding to bit is 4, and corresponding each 1 assignment configuration is sub-frame offset and cycle configuration independently for the bitmap sequence of 16 bits.At this moment the bitmap sequence adopts 4 bit indications, 1000 first location resource of indication are used for the interferometry resource, the resource of 1001 first positions of indication and the 4th position is used for the interferometry resource, the 3rd location resource of 0010 indication is used for the interferometry resource, and the 4th location resource of 0001 indication is used for interferometry resource etc.The zero energy CSI-RS configuration information that is used to indicate rate-matched resource and interferometry resource can adopt the cycle of Table3 and the configuration mode of sub-frame offset configuration mode or employing 40*N bit bitmap sequence, and wherein N is a positive integer greater than 0.Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 9

In the present embodiment, UE1 is R11 or the user of highest version more, and base station side configures the indicating terminal side to be not used in the resource element of the transmission of data by the high-level signaling configurating terminal side one cover zero energy CSI-RS of UE special use.Wherein this cover zero energy CSI-RS configuration information is used to refer to resource element information and the rate-matched resource element information of interferometry.

Base station side is indicated the time-frequency position of corresponding resource element information by the bitmap sequence, if end side adopts the resource indication of 2 ports, base station side adopts the bitmap sequence of 32 bit lengths, wherein 32 of all possible positions of 32 bits indication 2 port patterns; If end side adopts the resource indication of 4 ports, base station side adopts the bitmap sequence of 16 bit lengths, wherein 16 of all possible positions of 16 bits indication 4 port patterns; , if end side adopts the resource indication of 8 ports, adopt the bitmap sequence length method of 8 bits, 8 of all possible positions of 8 bit indication 8 port patterns.

In addition, base station side is indicated the position of the correspondence of interferometry resource in zero energy CSI-RS resource distribution by an index.Specifically, described base station side is indicated the position of the correspondence of resource element in this cover configuration information of interferometry by the index of a m bit, and wherein 2 ^mIt is total number of 1 more than or equal to bit value in this cover configuration information.For example zero energy CSI-RS resource distribution be 16 bits the bitmap sequence 0,111 0,000 0010 0000}, be wherein that 1 resource location number corresponding to bit is 4, and corresponding each 1 configure respectively independently sub-frame offset and cycle configuration.Be wherein that 1 resource location number corresponding to bit is 4, at this moment index adopts 2 bit indications, 00 first location resource of indication is used for the interferometry resource, second location resource of 01 indication is used for the interferometry resource, the 3rd location resource of 10 indications is used for the interferometry resource, and the 4th location resource of 11 indications is used for the interferometry resource.The zero energy CSI-RS configuration information that is used to indicate rate-matched resource and interferometry resource can adopt the cycle of Table3 and the configuration mode of sub-frame offset configuration mode or employing 40*N bit bitmap sequence, and wherein N is a positive integer greater than 0.Whether transmission rate is mated the zero energy CSI-RS of resource to represent corresponding subframe for each bit in the bitmap sequence.Wherein 40 40 subframes corresponding to bit refer to continuous or equally spaced 40 subframes from effective subframe of configuration.Be 0 for the bit in bit sequence, there is not indicated zero energy CSI-RS in resource element corresponding to expression, for the bit in bit sequence, is 1, and there is indicated zero energy CSI-RS in resource element corresponding to expression.

Embodiment 10

Fig. 1 is the schematic flow sheet of the sending method embodiment of the configuration information of reference signal in embodiment 10; Method shown in Figure 1 comprises:

Step 101, base station side are that end side is the information of the resource element that on end side, zero energy CSI-RS generation is used to refer to interferometry and the information that is used to refer to the resource element of rate-matched, are not used in the resource element of downlink transmission data in order to the indicating terminal side;

Step 102, base station side send the information of the described resource element that is used to refer to interferometry and are used to refer to the information of the resource element of rate-matched to end side.

The method that below the present embodiment is provided is described further:

Wherein, be used to refer to the information of resource element of interferometry and the information that is used to refer to the resource element of rate-matched and all by each self-corresponding cover configuration information, carry, and every cover configuration information has independently sub-frame offset and cycle.

Wherein, a cover configuration information corresponding to information configuration that is used to refer to the interferometry resource element carries, and the corresponding two cover configuration informations of information that are used to refer to the rate-matched resource element carry, and every cover configuration information has independently sub-frame offset and cycle.

If one overlaps the information that configuration information only comprises the information of the resource element that is used to refer to interferometry or is used to refer to the resource element of rate-matched, in same set of configuration information, the biasing of the frame of resource element is identical, and the cycle is also identical.

Indicate in the following way the running time-frequency resource position:

The zero energy CSI-RS configuration information that is used to indicate the resource element of interferometry adopts 7 bits to indicate the running time-frequency resource position of resource element in a subframe of interferometry, in wherein said 7 bits, front 2 continuous bits are used to refer to its resource that takies to number, and remaining 5 continuous bits represent the resource location of the resource element of interferometry;

The configuration information that is used to indicate the resource element of interferometry adopts 5 bits to indicate the running time-frequency resource position of resource element in a subframe of interferometries, and wherein said 5 bits are indicated the running time-frequency resource position according to CSI-RS in the 10th version R10 at resource mapping table or CSI-RS resource indicating mode of 2 ports in the resource mapping table of extended cyclic prefix sub-frame configuration of general cyclic prefix sub-frame configuration;

The configuration information that is used to indicate the resource element of interferometry adopts 4 bits to indicate the running time-frequency resource position of resource element in a subframe of interferometries, and wherein said 4 bits are indicated the running time-frequency resource position according to CSI-RS in R10 at resource mapping table or CSI-RS resource indicating mode of 4 ports in the resource mapping table of extended cyclic prefix sub-frame configuration of general cyclic prefix sub-frame configuration;

The configuration information that is used to indicate the resource element of interferometry adopts 3 bits to indicate the running time-frequency resource position of resource element in a subframe of interferometries, and wherein said 3 bits are indicated the running time-frequency resource position according to CSI-RS in R10 at resource mapping table or CSI-RS resource indicating mode of 8 ports in the resource mapping table of extended cyclic prefix sub-frame configuration of general cyclic prefix sub-frame configuration.

The configuration information that is used to indicate the resource element of interferometry can use the bitmap sequence to carry out indicating mode, comprising:

The configuration information that is used to indicate the resource element of interferometry adopts the bitmap sequence of 32 bits to carry out indicating mode, wherein each bit of this 32 bit respectively in corresponding R10 CSI-RS at the resource mapping table of general cyclic prefix sub-frame configuration or 32 resource locations of CSI-RS 2 port CSI-RS in the resource mapping table of extended cyclic prefix sub-frame configuration; Perhaps,

The configuration information that is used to indicate the resource element of interferometry adopts the bitmap sequence of 16 bits to carry out indicating mode, wherein each bit of this 16 bit respectively in corresponding R10 CSI-RS at the resource mapping table of general cyclic prefix sub-frame configuration or 16 resource locations of CSI-RS 4 port CSI-RS in the resource mapping table of extended cyclic prefix sub-frame configuration; Perhaps,

The configuration information that is used to indicate the resource element of interferometry adopts the bitmap sequence of 8 bits to carry out indicating mode, wherein each bit of this 8 bit respectively in corresponding R10 CSI-RS at the resource mapping table of general cyclic prefix sub-frame configuration or 8 resource locations of CSI-RS 8 port CSI-RS in the resource mapping table of extended cyclic prefix sub-frame configuration;

Wherein the bit in the bitmap sequence is that the 1 corresponding resource of expression exists the interferometry resource, and bit is to represent not exist the interferometry resource at 0 o'clock.

Being used to indicate the configuration mode that the corresponding sub-frame offset of configuration information of interferometry resource and cycle adopt is:

Adopt the configuration mode in CSI-RS sub-frame configuration table in R10; Perhaps,

Adopt the configuration mode of the bitmap sequence of 40*N bit, wherein N is a positive integer greater than 0, and wherein in the bitmap sequence of 40*N bit, each bit represents whether corresponding subframe sends the zero energy CSI-RS of the resource element of interferometry.

Being used to indicate the configuration mode that the configuration information of the resource element of rate-matched adopts is:

Adopt the configuration mode of the bitmap sequence of 40*N bit, wherein N be the positive integer greater than 0, and whether the subframe that each bit in the bitmap sequence represents correspondence the zero energy CSI-RS of the resource element that transmission rate is mated.

When using the indicating mode of bitmap sequence, when the bitmap sequence was 40 bits, 40 subframes that described 40 bits are corresponding referred to continuous or equally spaced 40 subframes from effective subframe of configuration.

Certainly, also have a special case situation, namely be used to refer to the information of resource element of interferometry and the information of resource element that is used to refer to rate-matched by a cover zero energy CSI-RS configuration information carrying.

, for above-mentioned special case, have following content to describe:

Described base station side is indicated the position of the correspondence of resource element in this cover configuration information of interferometry by a bitmap sequence, wherein the length of this bitmap sequence is total number of 1 for bit value in this cover configuration information, and in this bitmap sequence, numerical value is that 1 the corresponding resource in position is for being used for the resource element of interferometry; Perhaps,

Described base station side is indicated the position of the correspondence of resource element in this cover configuration information of interferometry by the index of a m bit, wherein 2m is total number of 1 more than or equal to bit value in this cover configuration information.

Embodiment 11

The invention provides a kind of configuration-system of reference signal, comprising:

The system that below the present embodiment is provided is described further:

Indicate in the following way the running time-frequency resource position:

, for above-mentioned special case, have following content to describe:

Described system also comprises an indicating device, be connected with described inking device, be used for indicating the position of the resource element of interferometry in the correspondence of this cover configuration information by a bitmap sequence, wherein the length of this bitmap sequence is total number of 1 for bit value in this cover configuration information, and in this bitmap sequence, numerical value is that 1 the corresponding resource in position is for being used for the resource element of interferometry; Perhaps,

Indicate the position of the correspondence of resource element in this cover configuration information of interferometry by the index of a m bit, wherein 2m is total number of 1 more than or equal to bit value in this cover configuration information.

Embodiment 12

Fig. 2 is the structural representation of transmitting system embodiment of the configuration information of reference signal provided by the invention.System shown in Figure 2 comprises:

Generating apparatus 201, being used to end side is the information and the information that is used to refer to the resource element of rate-matched that on end side, zero energy CSI-RS generates the resource element that is used to refer to interferometry, is not used in the resource element of downlink transmission data in order to the indicating terminal side;

Dispensing device 202, be connected with described generating apparatus 201, is used for sending the described information and the information that is used to refer to the resource element of rate-matched that is used to refer to the resource element of interferometry to end side.

The system that below the present embodiment is provided is described further:

Indicate in the following way the running time-frequency resource position:

, for above-mentioned special case, have following content to describe:

Described system also comprises an indicating device, be connected with described dispensing device, be used for indicating the position of the resource element of interferometry in the correspondence of this cover configuration information by a bitmap sequence, wherein the length of this bitmap sequence is total number of 1 for bit value in this cover configuration information, and in this bitmap sequence, numerical value is that 1 the corresponding resource in position is for being used for the resource element of interferometry; Perhaps,

The all or part of step that one of ordinary skill in the art will appreciate that above-described embodiment can realize with the computer program flow process, described computer program can be stored in a computer-readable recording medium, described computer program (as system, unit, device etc.) on corresponding hardware platform is carried out, when carrying out, comprise step of embodiment of the method one or a combination set of.

Alternatively, all or part of step of above-described embodiment also can realize with integrated circuit, and these steps can be made into respectively integrated circuit modules one by one, perhaps a plurality of modules in them or step is made into the single integrated circuit module and realizes.Like this, the present invention is not restricted to any specific hardware and software combination.

Each device/functional module/functional unit in above-described embodiment can adopt general calculation element to realize, they can concentrate on single calculation element, also can be distributed on the network that a plurality of calculation elements form.

The form of software function module of using each device/functional module/functional unit in above-described embodiment realizes and during as production marketing independently or use, can be stored in a computer read/write memory medium.The above-mentioned computer read/write memory medium of mentioning can be read-only memory, disk or CD etc.

The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the described protection range of claim.

Claims

1. the collocation method of a reference signal, is characterized in that, comprising:

2. method according to claim 1, it is characterized in that, be used to refer to the information of resource element of interferometry and the information that is used to refer to the resource element of rate-matched and all by each self-corresponding cover configuration information, carry, and every cover configuration information has independently sub-frame offset and cycle.

3. method according to claim 1, it is characterized in that, a cover configuration information corresponding to information configuration that is used to refer to the interferometry resource element carries, the corresponding two cover configuration informations of information that are used to refer to the rate-matched resource element carry, and every cover configuration information has independently sub-frame offset and cycle.

4. method according to claim 1, it is characterized in that, if one overlaps the information that configuration information only comprises the information of the resource element that is used to refer to interferometry or is used to refer to the resource element of rate-matched, in same set of configuration information, the biasing of the frame of resource element is identical, and the cycle is also identical.

5. method according to claim 1 is characterized in that:

6. method according to claim 1 is characterized in that:

7. method according to claim 1, is characterized in that, is used to indicate the configuration mode that the corresponding sub-frame offset of configuration information of interferometry resource and cycle adopt to be:

8. method according to claim 1, is characterized in that, is used to indicate the configuration mode that the configuration information of the resource element of rate-matched adopts to be:

9. according to claim 7 or 8 described methods is characterized in that:

When the bitmap sequence was 40 bits, 40 subframes that described 40 bits are corresponding referred to continuous or equally spaced 40 subframes from effective subframe of configuration.

10. method according to claim 1, is characterized in that, is used to refer to the information of resource element of interferometry and the information of resource element that is used to refer to rate-matched by a cover zero energy CSI-RS configuration information carrying.

11. method according to claim 10 is characterized in that:

Described base station side is indicated the position of the correspondence of resource element in this cover configuration information of interferometry by the index of a m bit, and wherein 2 ^mIt is total number of 1 more than or equal to bit value in this cover configuration information.

12. method according to claim 10 is characterized in that:

13. the sending method of the configuration information of a reference signal, is characterized in that, comprising:

14. method according to claim 13, it is characterized in that, be used to refer to the information of resource element of interferometry and the information that is used to refer to the resource element of rate-matched and all by each self-corresponding cover configuration information, carry, and every cover configuration information has independently sub-frame offset and cycle.

15. method according to claim 13, it is characterized in that, a cover configuration information corresponding to information configuration that is used to refer to the interferometry resource element carries, the corresponding two cover configuration informations of information that are used to refer to the rate-matched resource element carry, and every cover configuration information has independently sub-frame offset and cycle.

16. method according to claim 13, it is characterized in that, if one overlaps the information that configuration information only comprises the information of the resource element that is used to refer to interferometry or is used to refer to the resource element of rate-matched, in same set of configuration information, the biasing of the frame of resource element is identical, and the cycle is also identical.

17. method according to claim 13 is characterized in that:

18. method according to claim 13 is characterized in that:

19. method according to claim 13, is characterized in that, is used to indicate the configuration mode that the corresponding sub-frame offset of configuration information of interferometry resource and cycle adopt to be:

20. method according to claim 13, is characterized in that, is used to indicate the configuration mode that the configuration information of the resource element of rate-matched adopts to be:

21. according to claim 19 or 20 described methods is characterized in that:

22. method according to claim 13, is characterized in that, is used to refer to the information of resource element of interferometry and the information of resource element that is used to refer to rate-matched by a cover zero energy CSI-RS configuration information carrying.

23. method according to claim 22 is characterized in that:

Base station side is indicated the position of the correspondence of resource element in this cover configuration information of interferometry by a bitmap sequence, wherein the length of this bitmap sequence is total number of 1 for bit value in this cover configuration information, and in this bitmap sequence, numerical value is that 1 the corresponding resource in position is for being used for the resource element of interferometry; Perhaps,

Base station side is indicated the position of the correspondence of resource element in this cover configuration information of interferometry by the index of a m bit, and wherein 2 ^mIt is total number of 1 more than or equal to bit value in this cover configuration information.

24. method according to claim 22 is characterized in that:

25. the configuration-system of a reference signal, is characterized in that, comprising:

26. system according to claim 25, it is characterized in that, be used to refer to the information of resource element of interferometry and the information that is used to refer to the resource element of rate-matched and all by each self-corresponding cover configuration information, carry, and every cover configuration information has independently sub-frame offset and cycle.

27. system according to claim 25, it is characterized in that, a cover configuration information corresponding to information configuration that is used to refer to the interferometry resource element carries, the corresponding two cover configuration informations of information that are used to refer to the rate-matched resource element carry, and every cover configuration information has independently sub-frame offset and cycle.

28. system according to claim 25, it is characterized in that, if one overlaps the information that configuration information only comprises the information of the resource element that is used to refer to interferometry or is used to refer to the resource element of rate-matched, in same set of configuration information, the biasing of the frame of resource element is identical, and the cycle is also identical.

29. system according to claim 25 is characterized in that:

30. system according to claim 25 is characterized in that:

31. system according to claim 25, is characterized in that, is used to indicate the configuration mode that the corresponding sub-frame offset of configuration information of interferometry resource and cycle adopt to be:

32. system according to claim 25, is characterized in that, is used to indicate the configuration mode that the configuration information of the resource element of rate-matched adopts to be:

33. according to claim 31 or 32 described systems is characterized in that:

34. system according to claim 25, is characterized in that, is used to refer to the information of resource element of interferometry and the information of resource element that is used to refer to rate-matched by a cover zero energy CSI-RS configuration information carrying.

35. system according to claim 34, is characterized in that, described system also comprises:

Indicating device, be connected with described inking device, be used for indicating the position of the resource element of interferometry in the correspondence of this cover configuration information by a bitmap sequence, wherein the length of this bitmap sequence is total number of 1 for bit value in this cover configuration information, and in this bitmap sequence, numerical value is that 1 the corresponding resource in position is for being used for the resource element of interferometry; Perhaps,

Indicate the position of the correspondence of resource element in this cover configuration information of interferometry by the index of a m bit, wherein 2 ^mIt is total number of 1 more than or equal to bit value in this cover configuration information.

36. system according to claim 34 is characterized in that:

37. the transmitting system of the configuration information of a reference signal, is characterized in that, comprising:

Dispensing device, be connected with described generating apparatus, is used for sending the described information and the information that is used to refer to the resource element of rate-matched that is used to refer to the resource element of interferometry to end side.

38. described system according to claim 37, it is characterized in that, be used to refer to the information of resource element of interferometry and the information that is used to refer to the resource element of rate-matched and all by each self-corresponding cover configuration information, carry, and every cover configuration information has independently sub-frame offset and cycle.

39. described system according to claim 37, it is characterized in that, a cover configuration information corresponding to information configuration that is used to refer to the interferometry resource element carries, the corresponding two cover configuration informations of information that are used to refer to the rate-matched resource element carry, and every cover configuration information has independently sub-frame offset and cycle.

40. described system according to claim 37, it is characterized in that, if one overlaps the information that configuration information only comprises the information of the resource element that is used to refer to interferometry or is used to refer to the resource element of rate-matched, in same set of configuration information, the biasing of the frame of resource element is identical, and the cycle is also identical.

41. described system according to claim 37 is characterized in that:

42. described system according to claim 37 is characterized in that:

43. described system, is characterized in that according to claim 37, is used to indicate the configuration mode that the corresponding sub-frame offset of configuration information of interferometry resource and cycle adopt to be:

44. described system, is characterized in that according to claim 37, is used to indicate the configuration mode that the configuration information of the resource element of rate-matched adopts to be:

45. according to claim 43 or 44 described systems is characterized in that:

46. described system, is characterized in that according to claim 37, is used to refer to the information of resource element of interferometry and the information of resource element that is used to refer to rate-matched by a cover zero energy CSI-RS configuration information carrying.

47. described system, is characterized in that according to claim 46, described system also comprises:

Indicating device, be connected with described dispensing device, be used for indicating the position of the resource element of interferometry in the correspondence of this cover configuration information by a bitmap sequence, wherein the length of this bitmap sequence is total number of 1 for bit value in this cover configuration information, and in this bitmap sequence, numerical value is that 1 the corresponding resource in position is for being used for the resource element of interferometry; Perhaps,

48. described system according to claim 46 is characterized in that: