CN102055709A

CN102055709A - Transmission method and device of measurement pilot frequency in long term evolution-advanced system

Info

Publication number: CN102055709A
Application number: CN2009102372370A
Authority: CN
Inventors: 王正海; 肖国军; 徐婧; 拉盖施; 沈祖康
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2009-11-05
Filing date: 2009-11-05
Publication date: 2011-05-11
Anticipated expiration: 2029-11-05
Also published as: CN102055709B

Abstract

The invention discloses transmission method and device of measurement pilot frequency in a long term evolution advanced system (short for LTE-Advanced or LTE-A), which realize the transmission of measurement pilot frequency. The transmission method comprises the following step of: transmitting measurement pilot frequency of a measurement pilot frequency port according to a subframe structure and a configured measurement pilot frequency structure, wherein the measurement pilot frequency structure comprises each configured measurement pilot frequency area in a downlink subframe and a transmission mode of the measurement pilot frequency of the measurement pilot frequency port in the measurement pilot frequency area, and the measurement pilot area is used for transmitting the measurement pilot frequency and is partial or all data areas except for an OFDM (Orthogonal Frequency Division Multiplexing) symbol area, an Rel-9/10 dedicated pilot frequency area and an area occupied by a PDCCH (Physical Downlink Control Channel), where common pilot frequency is located, in the LTE system.

Description

The transmission method of measurement pilot frequency and device in a kind of advanced person's the long evolving system

Technical field

The present invention relates to communication technical field, be meant a kind of advanced person's Long Term Evolution (LTE-Advanced, LTE-A) transmission method of downlink data and device in the system especially.

Background technology

The LTE-A standardization effort carries out, and for satisfying the requirement of its peak rate, 8X8MIMO becomes guardian technique.In this case, just need the reference signal of these 8 antenna ports be configured respectively.When guaranteeing systematic function, reduce the expense of introducing by reference signal as much as possible, the method that the 3GPP meeting has adopted measurement pilot frequency (CSI-RS) and demodulation pilot frequency (DMRS) separately to design and optimize, i.e. dedicated pilot is adopted in demodulation, measures and adopts measurement pilot frequency.

Fig. 1 a is for having routine (Normal) CP Cyclic Prefix (Cyclic Prefix, subframe structure schematic diagram CP).As shown in Figure 1a, under Normal CP, the DMRS of 1-8 stream has taken latter two OFDM symbol of each time slot, and promptly the

OFDM symbol

5,6,12 and 13.PDCCH

takies OFDM symbol

0,1 and 2 usually, but under little bandwidth, PDCCH can take OFDM symbol 3.

Fig. 1 b is for having the subframe structure schematic diagram of expansion (Extended) CP.Shown in Fig. 1 b, under Extended CP, the DMRS of 1-8 stream has taken latter two OFDM symbol of each time slot, and promptly the

OFDM symbol

4,5,10 and 11.PDCCH

takies OFDM symbol

0,1 and 2 usually.

On frequency domain, a descending sub frame comprises some Physical Resource Block (Physical Resource Block, PRB), the time length of field of a PRB equal a subframe time length of field (such as, the 1ms of LTE or LTE-A), the frequency domain length of a PRB equals the bandwidth of 12 subcarrier correspondences, (such as, the 180KHZ of LTE or LTE-A).

By above-mentioned analysis as can be known, under present measurement pilot frequency designing requirement and traditional method for designing, the OFDM symbolic number that can be used for measurement pilot transmission seldom can not be supported the transmission of measurement pilot frequency effectively.

Summary of the invention

The invention provides the transmission method and the device of measurement pilot frequency in a kind of advanced person's the long evolving system, can realize the transmission of measurement pilot frequency.

The sending method of descending pilot frequency in a kind of advanced person's that the embodiment of the invention provides the long evolving system comprises:

According to the measurement pilot frequency structure of subframe structure and configuration, send the measurement pilot frequency of measurement pilot frequency port;

Wherein, described measurement pilot frequency structure comprises the measurement pilot frequency the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration, and described measurement pilot frequency zone is for removing public guide frequency place orthogonal frequency division multiplexed OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH among the long evolving system LTE.

The dispensing device of descending pilot frequency in a kind of advanced person's that the embodiment of the invention provides the long evolving system comprises:

Map unit is used for the measurement pilot frequency structure according to subframe structure and configuration, the measurement pilot frequency of measurement pilot frequency port shone upon,

Wherein, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place orthogonal frequency OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH among the long evolving system LTE;

Transmitting element, the data that are used for obtaining after the mapping send.

The method of reseptance of descending pilot frequency in a kind of advanced person's that the embodiment of the invention provides the long evolving system comprises:

Carry out the reception of signal according to the measurement pilot frequency structure of subframe structure and configuration, and carry out channel measurement according to the measurement pilot signals that receives, wherein,

Described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH among the long evolving system LTE.

The receiving system of descending pilot frequency in a kind of advanced person's that the embodiment of the invention provides the long evolving system comprises:

Receiving system, be used for carrying out the reception of measurement pilot signals according to the measurement pilot frequency structure of subframe structure and configuration, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH among the long evolving system LTE;

Measurement mechanism is used for carrying out channel measurement according to the measurement pilot signals that receives.

The embodiment of the invention is according to the measurement pilot frequency structure of subframe structure and configuration, the measurement pilot frequency of measurement pilot frequency port is sent, wherein, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of PDCCH in the LTE system.Utilize the embodiment of the invention can realize the insertion of LTE-A measurement pilot frequency and the measurement of channel, and obtain good measurement performance.

Description of drawings

Fig. 1 a is the subframe structure schematic diagram with conventional CP; Fig. 1 b is the subframe structure schematic diagram with expansion CP;

Fig. 2 is the schematic flow sheet of embodiment of the invention sending method of downlink data in advanced person's long evolving system;

Fig. 3 is the schematic flow sheet of embodiment of the invention method of reseptance of downlink data in advanced person's long evolving system;

Fig. 4 a is that measurement pilot frequency evenly is placed on 2 schematic diagrames on the OFDM symbol; Fig. 4 b is that 2 port measurement pilot frequency are concentrated and to be placed on 2 schematic diagrames on the OFDM symbol; Fig. 4 c is that measurement pilot frequency evenly is placed on 2 schematic diagrames on the OFDM symbol; Fig. 4 d is for being displaced to the schematic diagram of

OFDM symbol

9,10 with respect to Fig. 3

OFDM symbol

8,9 time domains; Fig. 4 e is that measurement pilot frequency is concentrated and to be placed on 1 schematic diagram on the OFDM symbol; Fig. 4 f is that measurement pilot frequency evenly is placed on 1 schematic diagram on the OFDM symbol.

Fig. 5 a is the schematic diagram of measurement pilot frequency on 2 OFDM symbols; Fig. 5 b is that measurement pilot frequency evenly is placed on 2 schematic diagrames on the OFDM symbol; Fig. 5 c is that measurement pilot frequency evenly is placed on 1 schematic diagram on the OFDM symbol; Fig. 5 d is that measurement pilot frequency is concentrated and to be placed on 1 schematic diagram on the OFDM symbol;

Fig. 6 a is that measurement pilot frequency evenly is placed on 2 schematic diagrames on the OFDM symbol; Fig. 6 b is that measurement pilot frequency evenly is placed on 2 schematic diagrames on the OFDM symbol; Fig. 6 c is that measurement pilot frequency is concentrated and to be placed on 2 schematic diagrames on the OFDM symbol; Fig. 6 d is that measurement pilot frequency is concentrated and to be placed on 2 schematic diagrames on the OFDM symbol; Fig. 6 e is that measurement pilot frequency is concentrated and to be placed on 1 schematic diagram on the OFDM symbol; Fig. 6 f is the measurement pilot frequency insertion method based on FDM+TDM, takies the schematic diagram of 2 OFDM symbols; Fig. 6 g is the measurement pilot frequency insertion method based on FDM+TDM, takies the schematic diagram of 2 OFDM symbols; Fig. 6 h is for having carried out the pilot tone on the OFDM symbol 9 shown in Figure 180 the schematic diagram of cyclic shift on frequency domain; Fig. 6 i is that 4 port measurement pilot frequency are concentrated placement; Fig. 6 j is that 4 port measurement pilot frequency are concentrated the schematic diagram of placing; Fig. 6 k is the measurement pilot frequency insertion method based on FDM, and 4 port measurement pilot frequency are concentrated the schematic diagram of placing; Fig. 6 l is for being displaced to schematic diagram on the OFDM symbol 10 with the pilot tone on the OFDM symbol 9 shown in Figure 180 in the time domain cocycle;

Fig. 7 a is the measurement pilot frequency insertion method based on FDM, and the port measurement pilot frequency is concentrated the schematic diagram of placing; Fig. 7 b is that 4 port measurement pilot frequency are evenly placed; Fig. 7 c is the schematic diagram that 4 port measurement pilot frequency are evenly placed; Fig. 7 d is the measurement pilot frequency insertion method based on FDM+TDM, and measurement pilot frequency is concentrated the schematic diagram of placing; Fig. 7 e is that 4 port measurement pilot frequency are evenly placed;

Fig. 8 a is that 8 port measurement pilot frequency are concentrated the schematic diagram of placing; Fig. 8 b is that 8 port measurement pilot frequency are concentrated placement; Fig. 8 c is the schematic diagram that 8 port measurement pilot frequency are evenly placed; Fig. 8 d is that 8 port measurement pilot frequency are concentrated placement; Fig. 8 e is the measurement pilot frequency insertion method based on FDM+TDM, and measurement pilot frequency is concentrated the schematic diagram of placing; Fig. 8 f is that 8 port measurement pilot frequency are concentrated the schematic diagram of placing; Fig. 8 g is that 8 port measurement pilot frequency are evenly placed; Fig. 8 h is that 8 port measurement pilot frequency are concentrated the schematic diagram of placing; Fig. 8 i is 8 ports, and every port cost is 1, the schematic diagram that measurement pilot frequency is evenly placed; Fig. 8 j is 8 ports, and every port cost is 1, the schematic diagram that measurement pilot frequency is evenly placed; Fig. 8 k is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated the schematic diagram of placing; Fig. 8 l is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated the schematic diagram of placing; Fig. 8 m is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated the schematic diagram of placing;

Fig. 9 a is the measurement pilot frequency insertion method based on FDM+TDM, and the port measurement pilot frequency is concentrated the schematic diagram of placing; 9b is the measurement pilot frequency insertion method based on FDM+TDM, and the port measurement pilot frequency is concentrated the schematic diagram of placing; Fig. 9 c is that 8 port measurement pilot frequency are concentrated the schematic diagram of placing; Fig. 9 d is that 8 port measurement pilot frequency are concentrated the schematic diagram of placing; Fig. 9 e is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated the schematic diagram of placing; Fig. 9 f is 8 ports, and every port cost is 1, the schematic diagram that measurement pilot frequency is evenly placed; Fig. 9 g is 8 ports, and every port cost is 1, the schematic diagram that measurement pilot frequency is evenly placed; Fig. 9 h is 8 ports, and every port cost is 1, the schematic diagram that measurement pilot frequency is evenly placed; Fig. 9 i is 8 ports, and every port cost is 1, the schematic diagram that measurement pilot frequency is evenly placed;

Figure 10 a is the measurement pilot frequency insertion method based on CDM, the measurement pilot frequency schematic diagram of conventional CP; Figure 10 b is the measurement pilot frequency insertion method based on CDM+TDM, the measurement pilot frequency schematic diagram of expansion CP; Figure 10 c is the measurement pilot frequency insertion method based on CDM+FDM, the measurement pilot frequency schematic diagram of expansion CP;

Figure 11 a is that measurement pilot frequency evenly is placed on 2 schematic diagrames on the OFDM symbol; Figure 11 b is that measurement pilot frequency evenly is placed on 2 schematic diagrames on the OFDM symbol; Figure 11 c is that measurement pilot frequency is concentrated and to be placed on 2 schematic diagrames on the OFDM symbol; Figure 11 d is that measurement pilot frequency is concentrated and to be placed on 2 schematic diagrames on the OFDM symbol; Figure 11 e is that measurement pilot frequency is concentrated and to be placed on 1 schematic diagram on the OFDM symbol; Figure 11 f is the schematic diagram that measurement pilot frequency evenly is placed on 2 OFDM symbols; Figure 11 g is the schematic diagram that measurement pilot frequency evenly is placed on 2 OFDM symbols; Figure 11 h is for having carried out the pilot tone on the OFDM symbol 9 shown in Figure 8 the schematic diagram of cyclic shift on frequency domain; Figure 11 i is that measurement pilot frequency is concentrated the schematic diagram of placing; Figure 11 j is that measurement pilot frequency is concentrated the schematic diagram of placing; Figure 11 k is that measurement pilot frequency is concentrated the schematic diagram of placing; Figure 11 l is for being displaced to schematic diagram on the OFDM symbol 10 with the pilot tone on the OFDM symbol 9 shown in Figure 8 in the time domain cocycle; Figure 11 m is the schematic diagram that measurement pilot frequency accounts for 4 OFDM symbols;

Figure 12 a is the measurement pilot frequency insertion method based on FDM, and the port measurement pilot frequency is concentrated the schematic diagram of placing; Figure 12 b is the schematic diagram that measurement pilot frequency is evenly placed; Figure 12 c is the schematic diagram that measurement pilot frequency is evenly placed; Figure 12 d is that measurement pilot frequency is concentrated the schematic diagram of placing; Figure 12 e is the schematic diagram that measurement pilot frequency is evenly placed;

Figure 13 a is that the measurement pilot frequency of 8 ports is inserted into schematic diagram in 2 PRB according to method A; Figure 13 b is that the measurement pilot frequency of 8 ports is inserted into schematic diagram in 2 PRB according to method A; Figure 13 c has carried out the schematic diagram of frequency domain cyclic shift for the measurement pilot frequency on the OFDM symbol 10 of Figure 13 a; Figure 13 d is that the measurement pilot frequency of 8 ports is inserted into 2 schematic diagrames among the PRB according to method B; Figure 13 e is that the measurement pilot frequency of 8 ports is inserted into 2 schematic diagrames among the PRB according to method B; Figure 13 f is that the measurement pilot frequency of 8 ports is inserted into 2 schematic diagrames among the PRB according to method B; Figure 13 g is that measurement pilot frequency time-domain cyclic shift on the OFDM symbol 9 among Figure 13 a is to the schematic diagram of OFDM symbol 8;

Figure 14 a is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method B, the schematic diagram under the expansion CP; Figure 14 b is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method B, the schematic diagram under the expansion CP; Figure 14 c is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method A, the schematic diagram under the expansion CP; Figure 14 d is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method A, the schematic diagram under the expansion CP; Figure 14 e is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method B, the schematic diagram under the expansion CP;

Figure 15 is the schematic diagram of the dispensing device of downlink data in advanced person's long evolving system of the embodiment of the invention;

Figure 16 is the schematic diagram of the receiving system of downlink data in advanced person's long evolving system of the embodiment of the invention.

Embodiment

In the embodiment of the invention, at transmitting terminal, measurement pilot frequency structure according to subframe structure and configuration, the measurement pilot frequency of measurement pilot frequency port is sent, wherein, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area among the long evolving system LTE, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH.At receiving terminal, carry out the reception of measurement pilot signals according to the measurement pilot frequency structure of subframe structure and configuration, and carry out channel measurement according to the measurement pilot signals that receives.

Described referring to Fig. 2, the sending method of embodiment of the invention downlink data in advanced person's long evolving system may further comprise the steps:

201:, the measurement pilot frequency of measurement pilot frequency port is shone upon according to the measurement pilot frequency structure of subframe structure and configuration.

Wherein, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration transmission means regional and measurement pilot frequency port measurement pilot signals in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of PDCCH in the LTE system.

In described measurement pilot frequency structure, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration; Or, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot signals of a part of measurement pilot frequency port of cell configuration, and has transmitted the measurement pilot frequency of all measurement pilot frequency ports at least at the descending sub frame that is used for the transmission measurement pilot tone of two configurations.Here, the descending sub frame that is used for the transmission measurement pilot tone of configuration is the descending sub frame that is used for the transmission measurement pilot tone of configuration.

If the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot signals of a part of measurement pilot frequency port of cell configuration, then can realize the transmission of measurement pilot frequency like this: the measurement pilot frequency port of cell configuration comprises some groups of measurement pilot frequency ports, the descending sub frame that is used for the transmission measurement pilot tone of every group of corresponding configuration of measurement pilot frequency port sends every group of measurement pilot frequency port mapping in the descending sub frame of correspondence.

If the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration, then can realize the transmission of measurement pilot frequency like this: the measurement pilot frequency of measurement pilot frequency port is mapped among each PRB of the descending sub frame that is used for the transmission measurement pilot tone of configuration and sends.Such as: also can realize like this: the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB group, the measurement pilot frequency of all measurement pilot frequency ports is mapped among every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone of configuration to send.Can also realize like this: the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, all measurement pilot frequency ports of cell configuration comprise some groups of measurement pilot frequency ports, and every group of measurement pilot frequency port mapping sent in the PRB of the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of configuration.

LTE public guide frequency zone can be the public guide frequency zone of 2 o'clock correspondences for the public guide frequency port number.Perhaps, the shared maximum OFDM symbolic number of PDCCH is 3.Also can both when all existing, promptly LTE public guide frequency zone is the public guide frequency zone of 2 o'clock correspondences for the public guide frequency port number, the shared maximum OFDM symbolic number of PDCCH is 3.

Described subframe structure is when having the subframe structure of conventional CP, and described measurement pilot frequency zone comprises: at least one OFDM symbol in the 3rd, 8,9 and 10 in the subframe.Described subframe structure is that described measurement pilot frequency zone comprises when having the subframe structure of expansion CP: at least one OFDM symbol in the 7th and 8 in the subframe.

The transmission means information of described measurement pilot frequency comprises: adopt one or more modes in time division multiplexing tdm, frequency division multiplexing FDM and the code division multiplexing CDM mode.

Step 202: the data after will shining upon send.

Referring to shown in Figure 3, the method for reseptance of embodiment of the invention downlink data in advanced person's long evolving system comprises:

Step 301: carry out the reception of measurement pilot signals according to the measurement pilot frequency structure of subframe structure and configuration, wherein,

Described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of PDCCH in the LTE system.

In described measurement pilot frequency structure, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration; Or, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration be used to carry cell configuration a part of measurement pilot frequency port measurement pilot signals and transmitted the measurement pilot frequency of all measurement pilot frequency ports at least at the descending sub frame that is used for the transmission measurement pilot tone of two configurations.

If the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration be used to carry cell configuration a part of measurement pilot frequency port measurement pilot signals and transmitted the measurement pilot frequency of all measurement pilot frequency ports at least at the descending sub frame that is used for the transmission measurement pilot tone of two configurations, then can receive measurement pilot frequency like this: all measurement pilot frequency ports of cell configuration comprise some groups of measurement pilot frequency ports, the descending sub frame that is used for the transmission measurement pilot tone of every group of corresponding configuration of measurement pilot frequency port receives measurement pilot frequency in the descending sub frame of every group of measurement pilot frequency port correspondence.

If the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration, then can receive measurement pilot frequency like this: in each PRB of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of all measurement pilot frequency port correspondences, receive measurement pilot frequency; Also can realize like this: in every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of the measurement pilot frequency correspondence of all measurement pilot frequency ports, receive measurement pilot frequency, wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups; Can also realize like this: in the PRB of the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of every group of measurement pilot frequency port correspondence, receive measurement pilot frequency, wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, and all measurement pilot frequency ports of cell configuration comprise some groups of measurement pilot frequency ports.

LTE public guide frequency zone is the public guide frequency zone of 2 o'clock correspondences for the public guide frequency port number, and/or the shared maximum OFDM symbolic number of PDCCH is 3.

Step 302: carry out channel measurement according to the measurement pilot signals that receives.

Lift specific embodiment below and describe technical scheme of the present invention in detail, wherein, the indication subframe is the descending sub frame that is used for the transmission measurement pilot tone of configuration.

In following examples, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration.And, the measurement pilot frequency of all measurement pilot frequency ports can be mapped among each PRB of the descending sub frame that is used for the transmission measurement pilot tone of a configuration and send, also the measurement pilot frequency of all measurement pilot frequency ports can be mapped among PRB of the descending sub frame that is used for the transmission measurement pilot tone of a configuration and send, also can be in implementation process, the measurement pilot frequency port of all measurement pilot frequency of repeating mapping at least one PRB.

The embodiment of the invention adopts and the maximum quantity of the public port (CRS) of LTE can be configured to 2 or be 3 method with the OFDM symbolic number maximum configured of PDCCH, the measurement pilot frequency of all antenna ports is multiplexing by the mode of FDM/TDM/CDM, realize the insertion of measurement pilot frequency, and then realize the measurement of system channel.For example: under the conventional CP, when measurement pilot frequency was inserted into OFDM symbol 8, needing the public port of LTE is counted maximum configured was 2; Under the conventional CP, when measurement pilot frequency was inserted into OFDM symbol 3, the maximum OFDM symbolic number that needs PDCCH is taken was configured to 3; Under the expansion CP, when measurement pilot frequency was inserted into OFDM symbol 7, needing the public port of LTE is counted maximum configured was 2.

When the maximum quantity of the public port (CRS) of LTE being configured to 2 and the OFDM symbolic number maximum configured of PDCCH can be 3 the time, the OFDM symbol that can be used as measurement pilot transmission is as shown in table 1:

The CP type	Can the OFDM symbol
		Conventional CP
	3、8、9、10
		Expansion CP	7、8

Table 1

According to the OFDM symbol that measurement pilot frequency is inserted that can be used as shown in the table 1, embodiment 1～6 has provided the insertion method based on the measurement pilot frequency of FDM/TDM; Embodiment 7 has provided based on CDM, in conjunction with the measurement pilot frequency insertion method of FDM/TDM.Under the conventional CP, when measurement pilot frequency was inserted into OFDM symbol 8, needing the public port of LTE is counted maximum configured was 2; Under the conventional CP, when measurement pilot frequency was inserted into OFDM symbol 3, the maximum OFDM symbolic number that needs PDCCH is taken was configured to 3; Under the expansion CP, when measurement pilot frequency was inserted into OFDM symbol 7, needing the public port of LTE is counted maximum configured was 2.

Embodiment 1: shown in Fig. 4 a～4f, under the conventional CP, based on the insertion method of the 2 port measurement pilot frequency of FDM/TDM.

In this case, the OFDM symbol that the measurement pilot frequency of 2 ports can take is, two, three or four in 3,8,9 and 10, and the measurement pilot frequency in each OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency on each OFDM symbol can also be carried out the cyclic shift of time domain between

OFDM symbol

3,8,9,10.Measurement pilot frequency can be concentrated placement on

OFDM symbol

3,8,9,10, also can evenly place.

Fig. 4 a is that measurement pilot frequency evenly is placed on 2 OFDM symbols; Fig. 4 b is that 2 port measurement pilot frequency are concentrated and to be placed on 2 OFDM symbols; Fig. 4 c is that measurement pilot frequency evenly is placed on 2 OFDM symbols; Fig. 4 d is for to be displaced to

OFDM symbol

9,10 with respect to Fig. 3

OFDM symbol

8,9 time domains; Fig. 4 e is that measurement pilot frequency is concentrated and to be placed on 1 OFDM symbol; Fig. 4 f is that measurement pilot frequency evenly is placed on 1 OFDM symbol.

Embodiment 2: shown in Fig. 5 a～5d, under the expansion CP, based on the insertion method of the 2 port measurement pilot frequency of FDM/TDM.

In this case, the OFDM symbol that the measurement pilot frequency of 2 ports can take is one or two in 7,8, and the measurement pilot frequency in each OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency on each OFDM symbol can also be carried out the cyclic shift of time domain between OFDM symbol 7,8.Measurement pilot frequency can be concentrated placement on

OFDM symbol

7,8, also can evenly place.

Measurement pilot frequency shown in Fig. 5 a is on 2 OFDM symbols; Fig. 5 b is depicted as measurement pilot frequency and evenly is placed on 2 OFDM symbols; Fig. 5 c is depicted as measurement pilot frequency and evenly is placed on 1 OFDM symbol; Fig. 5 d is that measurement pilot frequency is concentrated and to be placed on 1 OFDM symbol.

Embodiment 3: shown in Fig. 6 a～6l, under the conventional CP, based on the insertion method of the 4 port measurement pilot frequency of FDM/TDM.

In this case, the OFDM symbol that the measurement pilot frequency of 4 ports can take is, two, three or four in 3,8,9 and 10, and the measurement pilot frequency in each OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency on each OFDM symbol can also be carried out the cyclic shift of time domain between

OFDM symbol

3,8,9,10.Measurement pilot frequency can be concentrated placement on

OFDM symbol

3,8,9,10, also can evenly place.

Fig. 6 a is that measurement pilot frequency evenly is placed on 2 OFDM symbols; Fig. 6 b is that measurement pilot frequency evenly is placed on 2 OFDM symbols; Fig. 6 c is that measurement pilot frequency is concentrated and to be placed on 2 OFDM symbols; Fig. 6 d is that measurement pilot frequency is concentrated and to be placed on 2 OFDM symbols; Fig. 6 e is that measurement pilot frequency is concentrated and to be placed on 1 OFDM symbol; Fig. 6 f is the measurement pilot frequency insertion method based on FDM+TDM, takies 2 OFDM symbols; Fig. 6 g is the measurement pilot frequency insertion method based on FDM+TDM, takies 2 OFDM symbols; Fig. 6 h is for to have carried out cyclic shift with the pilot tone on the OFDM symbol 9 shown in Figure 180 on frequency domain; Fig. 6 i is that 4 port measurement pilot frequency are concentrated placement; Fig. 6 j is that 4 port measurement pilot frequency are concentrated placement; Fig. 6 k is the measurement pilot frequency insertion method based on FDM, and 4 port measurement pilot frequency are concentrated and placed; Fig. 6 l is for to be displaced to the pilot tone on the OFDM symbol 9 shown in Figure 180 on the OFDM symbol 10 in the time domain cocycle.

Embodiment 4: shown in Fig. 7 a～7e, under the expansion CP, based on the insertion method of the 4 port measurement pilot frequency of FDM/TDM.

In this case, the OFDM symbol that the measurement pilot frequency of 4 ports can take is one or two in 7,8, and the measurement pilot frequency in each OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency on each OFDM symbol can also be carried out the cyclic shift of time domain between OFDM symbol 7,8.Measurement pilot frequency can be concentrated placement on

OFDM symbol

7,8, also can evenly place.

Fig. 7 a is the measurement pilot frequency insertion method based on FDM, and the port measurement pilot frequency is concentrated and placed; Fig. 7 b is that 4 port measurement pilot frequency are evenly placed; Fig. 7 c is that 4 port measurement pilot frequency are evenly placed; Fig. 7 d is the measurement pilot frequency insertion method based on FDM+TDM, and measurement pilot frequency is concentrated and placed; Fig. 7 e is that 4 port measurement pilot frequency are evenly placed.

Embodiment 5: referring to Fig. 8 a～8m is under the conventional CP, based on the insertion method of the 8 port measurement pilot frequency of FDM/TDM.

In this case, the OFDM symbol that the measurement pilot frequency of 8 ports can take is, two, three or four in 3,8,9 and 10, and the measurement pilot frequency in each OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency on each OFDM symbol can also be carried out the cyclic shift of time domain between

OFDM symbol

3,8,9,10.Measurement pilot frequency can be concentrated placement on

OFDM symbol

3,8,9,10, also can evenly place.

Fig. 8 a is that 8 port measurement pilot frequency are concentrated placement; Fig. 8 b is that 8 port measurement pilot frequency are concentrated placement; Fig. 8 c is that 8 port measurement pilot frequency are evenly placed; Fig. 8 d is that 8 port measurement pilot frequency are concentrated placement; Fig. 8 e is the measurement pilot frequency insertion method based on FDM+TDM, and measurement pilot frequency is concentrated and placed; Fig. 8 f is that 8 port measurement pilot frequency are concentrated placement; Fig. 8 g is that 8 port measurement pilot frequency are evenly placed; Fig. 8 h is that 8 port measurement pilot frequency are concentrated placement; Fig. 8 i is 8 ports, and every port cost is 1, and measurement pilot frequency is evenly placed; Fig. 8 j is 8 ports, and every port cost is 1, and measurement pilot frequency is evenly placed; Fig. 8 k is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated and placed; Fig. 8 l is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated and placed; Fig. 8 m is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated and placed.

Embodiment 6: under the expansion CP, based on the insertion method of the 8 port measurement pilot frequency of FDM/TDM

In this case, the OFDM symbol that the measurement pilot frequency of 8 ports can take is one or two in 7,8, and the measurement pilot frequency in each OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency on each OFDM symbol can also be carried out the cyclic shift of time domain between OFDM symbol 7,8.Measurement pilot frequency can be concentrated placement on

OFDM symbol

7,8, also can evenly place.

Fig. 9 a is the measurement pilot frequency insertion method based on FDM+TDM, and the port measurement pilot frequency is concentrated and placed; 9b is the measurement pilot frequency insertion method based on FDM+TDM, and the port measurement pilot frequency is concentrated and placed; Fig. 9 c is that 8 port measurement pilot frequency are concentrated placement; Fig. 9 d is that 8 port measurement pilot frequency are concentrated placement; Fig. 9 e is 8 ports, and every port cost is 1, and measurement pilot frequency is concentrated and placed; Fig. 9 f is 8 ports, and every port cost is 1, and measurement pilot frequency is evenly placed; Fig. 9 g is 8 ports, and every port cost is 1, and measurement pilot frequency is evenly placed; Fig. 9 h is 8 ports, and every port cost is 1, and measurement pilot frequency is evenly placed; Fig. 9 i is 8 ports, and every port cost is 1, and measurement pilot frequency is evenly placed.

Embodiment 7: based on the measurement pilot frequency interleaved plan of CDM.

Measurement pilot frequency also can be based on orthogonal sequence.Measurement pilot frequency on all antenna ports of same sub-district is transmitted on identical running time-frequency resource (such as Figure 52) orthogonally by mutually orthogonal sequence.In addition, all antenna ports also can be divided into M (M=1,2,3 ..., 8) and group, the measurement pilot frequency of Nei antenna port is transmitted on identical running time-frequency resource orthogonally by orthogonal sequence on the same group; The measurement pilot frequency of the antenna port between group is transmitted orthogonally by FDM (such as Figure 54) or TDM (such as Figure 53) realization multiport measurement pilot frequency.The orthogonal transmission of all antenna port measurement pilot frequency can be realized by above-mentioned 2 kinds of methods in the sub-district.Orthogonal sequence can adopt Zadoff-Chu (ZC) sequence, and the ZC sequence promptly can be used for distinguishing antenna port by different cyclic shifts.

When the measurement pilot frequency interleaved plan that adopts based on CDM, can adopt one of following implementation method:

(1) when cell configuration is 2 ports, under conventional CP, can utilize an OFDM symbol in the 3rd, 8,9 and 10 the OFDM symbol, the individual subcarrier of interval N (0≤N＜12), the measurement pilot frequency of 2 ports of transmission; Under expansion CP, can utilize an OFDM symbol in the 7th and 8 the OFDM symbol, the individual subcarrier of interval N (0≤N＜12), the measurement pilot frequency of 2 ports of transmission.

(2) when cell configuration is 4 ports, under conventional CP, can utilize an OFDM symbol in the 3rd, 8,9 and 10 the OFDM symbol, the individual subcarrier of interval N (0≤N＜12), the measurement pilot frequency of 4 ports of transmission; Under expansion CP, can utilize an OFDM symbol in the 7th and 8 the OFDM symbol, the individual subcarrier of interval N (0≤N＜12), the measurement pilot frequency of 4 ports of transmission.

(3) when cell configuration is 8 ports, under conventional CP, measurement pilot frequency can be utilized an OFDM symbol in the 3rd, 8,9 and 10 the OFDM symbol, the individual subcarrier of interval N (0≤N＜12), the measurement pilot frequency of 8 ports of transmission; Under expansion CP, can utilize an OFDM symbol in the 7th and 8 the OFDM symbol, the individual subcarrier of interval N (0≤N＜12), the measurement pilot frequency of 8 ports of transmission.

(4) when cell configuration is 8 ports, under conventional CP, measurement pilot frequency can be utilized 2 OFDM symbols in the 3rd, 8,9 and 10 the OFDM symbol, the individual subcarrier of interval N (0≤N＜12), the measurement pilot frequency of 8 ports of transmission.Wherein, each OFDM symbol respectively transmits the wherein measurement pilot frequency of 4 ports.Under expansion CP, can utilize 2 OFDM symbols in the 7th and 8 the OFDM symbol, the individual subcarrier of N (0≤N＜12) passes at interval, the measurement pilot frequency of defeated 8 ports.Wherein, each OFDM symbol respectively transmits the wherein measurement pilot frequency of 4 ports.

(5) when cell configuration is 8 ports, under conventional CP, measurement pilot frequency can be utilized 1 OFDM symbol in the 3rd, 8,9 and 10 the OFDM symbol, the measurement pilot frequency of 8 ports of transmission.Wherein, the odd subcarriers in this OFDM symbol is transmitted the wherein measurement pilot frequency of 4 ports; Even subcarriers is transmitted the measurement pilot frequency of other 4 ports.Under expansion CP, can utilize the measurement pilot frequency of 8 ports of 1 OFDM symbol transmission in the 7th and 8 the OFDM symbol.Wherein, the odd subcarriers in this OFDM symbol is transmitted the wherein measurement pilot frequency of 4 ports; Even subcarriers is transmitted the measurement pilot frequency of other 4 ports.

Figure 10 a is the measurement pilot frequency insertion method based on CDM, the measurement pilot frequency schematic diagram of conventional CP; Figure 10 b is the measurement pilot frequency insertion method based on CDM+TDM, the measurement pilot frequency schematic diagram of expansion CP; Figure 10 c is the measurement pilot frequency insertion method based on CDM+FDM, the measurement pilot frequency schematic diagram of expansion CP.

Need to prove, in the foregoing description 1～6, just list part embodiment, the measurement pilot frequency in each OFDM symbol in the foregoing description can also be carried out the cyclic shift of frequency domain or time domain.Such as: Fig. 6 h is the result of frequency domain cyclic shift with respect to Fig. 6 f.Measurement pilot frequency on each OFDM symbol can also be carried out the cyclic shift of time domain between the OFDM symbol shown in the table 1, be the result of cyclic shift with respect to Fig. 6 f as Fig. 6 l.

By the foregoing description, can realize the insertion of LTE-A measurement pilot frequency and the measurement of channel, and obtain good measurement performance.

Describe technical scheme of the present invention in detail for embodiment more below, in following examples, with the measurement pilot frequency of the descending sub frame carrying cell configuration that is used for the transmission measurement pilot tone of a plurality of configurations, the measurement pilot frequency of all measurement pilot frequency ports can also be mapped among each PRB of the descending sub frame that is used for the transmission measurement pilot tone of configuration and send; Or the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB group, the measurement pilot frequency of all measurement pilot frequency ports is mapped among every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone of configuration to send; Or, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, all measurement pilot frequency ports of cell configuration comprise some groups of measurement pilot frequency ports, and every group of measurement pilot frequency port mapping sent in the PRB of the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of configuration.

In following examples,, can reduce negative effect to LTE user with respect to the foregoing description.

Employing with the measurement pilot frequency of P port be inserted into M (M=2 ..., P) the individual subframe or the method for (every group of PRB comprises N PRB, and N is a natural number) in the PRB group that is inserted into realize the insertion of measurement pilot frequency, and then realize the measurement of system channel.The subframe here is the descending sub frame that is used for the transmission measurement pilot tone of configuration.

Embodiment 1: shown in Figure 11 a～Figure 11 m, and under the conventional CP, the transmission of measurement pilot frequency in M subframe.

Under conventional CP, measurement pilot frequency can be inserted in the

OFDM symbol

3,8,9,10 1,2,3 or 4 the OFDM symbols.The interior measurement pilot frequency of OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency can also be carried out the cyclic shift of time domain between

OFDM symbol

3,8,9,10.Measurement pilot frequency can be concentrated placement on

OFDM symbol

3,8,9,10, also can evenly place.

When the transmission of measurement pilot frequency in M subframe, P port is divided into the M group, wherein one group of each subframe transmission (promptly wherein the measurement pilot frequency of 1/M).

Such as, when cell configuration becomes 8 antenna ports to transmit, antenna port 0-3 can be divided into one group in 2 subframes, in a subframe, transmit; Antenna port 4-7 is divided into other one group, in the another one subframe, transmits.Measurement pilot frequency adopts identical insertion method in two subframes, and the present invention only provides the measurement pilot frequency insertion method in one of them subframe.

Figure 11 a is depicted as measurement pilot frequency and evenly is placed on 2 OFDM symbols; Figure 11 b is depicted as measurement pilot frequency and evenly is placed on 2 OFDM symbols; Figure 11 c is depicted as measurement pilot frequency and concentrates and to be placed on 2 OFDM symbols; Figure 11 d is depicted as measurement pilot frequency and concentrates and to be placed on 2 OFDM symbols; Figure 11 e is that measurement pilot frequency is concentrated and to be placed on 1 OFDM symbol; Figure 11 f is depicted as measurement pilot frequency and evenly is placed on 2 OFDM symbols; Figure 11 g is depicted as measurement pilot frequency and evenly is placed on 2 OFDM symbols; Figure 11 h is depicted as the pilot tone on the OFDM symbol 9 shown in Figure 8 has been carried out cyclic shift on frequency domain; Figure 11 i is depicted as measurement pilot frequency and concentrates placement; Figure 11 j is depicted as measurement pilot frequency and concentrates placement; Figure 11 k is depicted as measurement pilot frequency and concentrates placement; Figure 11 l is depicted as the pilot tone on the OFDM symbol 9 shown in Figure 8 is displaced on the OFDM symbol 10 in the time domain cocycle; Figure 11 m is depicted as measurement pilot frequency and accounts for 4 OFDM symbols.

Embodiment 2: shown in Figure 12 a～12e, and under the expansion CP, the transmission of measurement pilot frequency in M subframe.

Under expansion CP, measurement pilot frequency can be inserted in the

OFDM symbol

7,81 or 2 the OFDM symbols.The interior measurement pilot frequency of OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency can also be carried out the cyclic shift of time domain between OFDM symbol 7,8.Measurement pilot frequency can be concentrated placement on

OFDM symbol

7,8, also can evenly place.

Figure 12 a is depicted as the measurement pilot frequency insertion method based on FDM, and the port measurement pilot frequency is concentrated and placed; Figure 12 b is depicted as measurement pilot frequency and evenly places; Figure 12 c is that measurement pilot frequency is evenly placed; Figure 12 d is depicted as measurement pilot frequency and concentrates placement; Figure 12 e is depicted as measurement pilot frequency and evenly places.

Embodiment 3: shown in Figure 13 a～13g, measurement pilot frequency is inserted in the PRB group in the descending sub frame.

Under conventional CP, measurement pilot frequency can be inserted in the

OFDM symbol

3,8,9,10.

Represent the subcarrier in frequency domain number of each PRB with SC, represent system bandwidth with B, (unit of B is PRB).System bandwidth is divided into

Group, preceding

Organize every group N PRB arranged; As Bmod (N) when being not equal to 0, Group has the individual PRB of Bmod (N).When measurement pilot frequency was transmitted on the individual PRB of N (N is a natural number), the measurement pilot frequency on all antenna ports of sub-district was inserted on the PRB in the PRB group according to following method, and the measurement pilot frequency on remaining PRB group all is the expansion of this group.

Represent the expense of each antenna port with O, P represents the antenna port number that the sub-district is total, and then the insertion method of OP measurement pilot frequency on P antenna port is as follows:

First kind: press one group of P measurement pilot frequency, equally spaced be distributed in the group on NSC the subcarrier of 1 OFDM symbol, can repeat to according to identical rule on O the OFDM symbol.

Second kind: according to one group of P/2 measurement pilot frequency, organizing does not have on the inherent frequency domain at interval, and K (K is a natural number) group equally spaced is distributed on NSC the subcarrier of 1 OFDM symbol, can repeat to according to identical rule on 2O/K the OFDM symbol.

The measurement pilot frequency that Figure 13 a is depicted as 8 ports is inserted in 2 PRB according to method A; The measurement pilot frequency that Figure 13 b is depicted as 8 ports is inserted in 2 PRB according to method A; The measurement pilot frequency that Figure 13 c is depicted as on the OFDM symbol 10 of Figure 13 a has been carried out the frequency domain cyclic shift; The measurement pilot frequency that Figure 13 d is depicted as 8 ports is inserted among 2 PRB according to method B; The measurement pilot frequency that Figure 13 e is depicted as 8 ports is inserted among 2 PRB according to method B; The measurement pilot frequency that Figure 13 f is depicted as 8 ports is inserted among 2 PRB according to method B; Figure 13 g is depicted as measurement pilot frequency time-domain cyclic shift on the OFDM symbol 9 among Figure 13 a to OFDM symbol 8.

Embodiment 4: shown in Figure 14 a～Figure 14 e, under the expansion CP, measurement pilot frequency is inserted in the PRB group.

Under expansion CP, measurement pilot frequency can be inserted into 1 or 2 in the OFDM symbol 7,8.The interior measurement pilot frequency of OFDM symbol can also be carried out the frequency domain cyclic shift.Measurement pilot frequency can also be carried out the cyclic shift of time domain between

OFDM symbol

7,8.

Under expansion CP, measurement pilot frequency can adopt the method shown in 4.3 joints to be inserted among N the PRB.

Figure 14 a is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method B, expansion CP; Figure 14 b is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method B, expansion CP; Figure 14 c is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method A, expansion CP; Figure 14 d is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method A, expansion CP; Figure 14 e is that the measurement pilot frequency of 8 ports is inserted among 2 PRB according to method B, expansion CP.

The foregoing description 1～4 has just been listed the part situation, can carry out time domain or frequency domain cyclic shift according to resources employment methods shown in the foregoing description 1～4, obtains the configuration information in new measurement pilot frequency zone.

Referring to shown in Figure 15, the dispensing device of downlink data in advanced person's long evolving system of the embodiment of the invention comprises: map unit 151 and transmitting element 152.

Map unit 151 is used for the measurement pilot frequency structure according to subframe structure and configuration, the measurement pilot frequency of measurement pilot frequency port shone upon,

Wherein, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration transmission means regional and measurement pilot frequency port measurement pilot signals in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH among the long evolving system LTE;

Transmitting element 152, the data that are used for obtaining after the mapping send.

If the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration be used to carry cell configuration a part of measurement pilot frequency port measurement pilot signals and transmitted the measurement pilot frequency of all measurement pilot frequency ports at least at the descending sub frame that is used for the transmission measurement pilot tone of two configurations

Map unit then, be used for the descending sub frame of every group of measurement pilot frequency port mapping to correspondence sent, wherein, the measurement pilot frequency port of cell configuration comprises some groups of measurement pilot frequency ports, the corresponding configuration of every group of measurement pilot frequency port be used for transmission measurement pilot tone descending sub frame.

If the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration, then described map unit is used for measurement pilot frequency with the measurement pilot frequency port and is mapped to each PRB of descending sub frame that a configuration is used for the transmission measurement pilot tone and sends; Or described map unit is used for every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone that measurement pilot frequency with the measurement pilot frequency port is mapped to configuration and sends, and wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups; Or, described map unit, be used for the PRB of every group of measurement pilot frequency port mapping to the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of configuration sent, wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, and the measurement pilot frequency port of cell configuration comprises some groups of measurement pilot frequency ports.

LTE public guide frequency zone is the public guide frequency zone of 2 o'clock correspondences for the public guide frequency port number.Perhaps, the shared maximum OFDM symbolic number of PDCCH is 3.

The transmission means information of measurement pilot frequency comprises: one or more modes in TDM, FDM and the CDM mode, and can be referring to the diagram of said method correspondence.

Referring to shown in Figure 16, the receiving system of downlink data in advanced person's long evolving system of the embodiment of the invention comprises:

Receiving system 161, be used for carrying out the reception of measurement pilot signals according to the measurement pilot frequency structure of subframe structure and configuration, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration transmission means regional and measurement pilot frequency port measurement pilot signals in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH among the long evolving system LTE.

Measurement mechanism 162 is used for carrying out channel measurement according to the measurement pilot signals that receives.

In described measurement pilot frequency structure, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration; Or,

The measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration be used to carry cell configuration a part of measurement pilot frequency port measurement pilot signals and transmitted the measurement pilot frequency of all measurement pilot frequency ports at least at the descending sub frame that is used for the transmission measurement pilot tone of two configurations.

Then described receiving element, be used for receiving measurement pilot frequency at the descending sub frame of every group of measurement pilot frequency port correspondence, wherein, the measurement pilot frequency port of cell configuration comprises some groups of measurement pilot frequency ports, the descending sub frame that is used for the transmission measurement pilot tone of every group of corresponding configuration of measurement pilot frequency port.

If the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration,

Then described receiving element is used for receiving measurement pilot frequency at each PRB of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of measurement pilot frequency port correspondence; Or,

Described receiving element is used for receiving measurement pilot frequency at every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of the measurement pilot frequency correspondence of measurement pilot frequency port, and wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups; Or,

Described receiving element, be used for receiving measurement pilot frequency at the PRB of the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of every group of measurement pilot frequency port correspondence, wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, and the measurement pilot frequency port of cell configuration comprises some groups of measurement pilot frequency ports.

Concrete subframe structure can also be configured according to the situation in embodiment illustrated in fig. 15, and end side is identical with the structure of base station side configuration, repeats no more here.

The embodiment of the invention can realize the insertion of LTE-A measurement pilot frequency and the measurement of channel, and obtains good measurement performance.

The 3GPP meeting is with the benchmark of 16RE/10ms/PRB as the measurement pilot frequency expense.Be not more than in expense under the benchmark of 3GPP regulation, the embodiment of the invention has proposed the method and apparatus that a kind of measurement pilot frequency is inserted, and is used to support the measurement of LTE-A channel.FDM/TDM/CDM is three kinds of basic modes of many antenna ports measurement pilot transmission.FDM and TDM often are used in combination, from time domain and frequency domain the measurement pilot frequency of multiport kept apart, thus the orthogonal transmission of realization multiport measurement pilot frequency.Under the CDM mode, the measurement pilot frequency of multiport realizes the orthogonal transmission of multiport measurement pilot frequency on identical running time-frequency resource by orthogonal code.Compare with FDM/TDM, the multiport measurement pilot frequency can reduce the expense of measurement pilot frequency by the CDM orthogonal transmission.

Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.

Claims

1. the sending method of measurement pilot signals in an advanced person the long evolving system is characterized in that this method may further comprise the steps:

2. method according to claim 1 is characterized in that, in described measurement pilot frequency structure, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration; Or,

The measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot signals of a part of measurement pilot frequency port of cell configuration.

3. method according to claim 2, it is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot signals of a part of measurement pilot frequency port of cell configuration, then send the measurement pilot frequency of measurement pilot frequency port, comprising:

The measurement pilot frequency port of cell configuration comprises some groups, and the descending sub frame that is used for the transmission measurement pilot tone of every group of corresponding configuration of measurement pilot frequency port sends every group of measurement pilot frequency port mapping in the descending sub frame of correspondence.

4. method according to claim 2, it is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of the measurement pilot frequency port of cell configuration, then send the measurement pilot frequency of measurement pilot frequency port, comprising:

The measurement pilot frequency of measurement pilot frequency port is mapped among each Physical Resource Block PRB of the descending sub frame that is used for the transmission measurement pilot tone of configuration and sends; Or,

The descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB group, the measurement pilot frequency of measurement pilot frequency port is mapped among every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone of configuration to send; Or,

The descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, the measurement pilot frequency port of cell configuration comprises some groups, and every group of measurement pilot frequency port mapping sent in the PRB of the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of configuration.

5. method according to claim 1 is characterized in that, LTE public guide frequency zone is the OFDM symbol area at the public guide frequency place of 2 o'clock correspondences for the public guide frequency port number.

6. method according to claim 1 or 5 is characterized in that the shared maximum OFDM symbolic number of PDCCH is 3.

7. method according to claim 1 is characterized in that, described subframe structure is when having the subframe structure of conventional CP, and described measurement pilot frequency zone comprises: at least one OFDM symbol in the 3rd, 8,9 and 10 in the subframe.

8. method according to claim 1 is characterized in that, described subframe structure is that described measurement pilot frequency zone comprises when having the subframe structure of expansion CP: at least one OFDM symbol in the 7th and 8 in the subframe.

9. according to each described method in the claim 1～8, it is characterized in that the transmission means of described measurement pilot frequency comprises: adopt one or more modes in time division multiplexing tdm, frequency division multiplexing FDM and the code division multiplexing CDM mode.

10. the dispensing device of downlink data in an advanced person the long evolving system is characterized in that this device comprises:

11. device according to claim 10 is characterized in that, in described measurement pilot frequency structure, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration; Or,

12. device according to claim 11 is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot signals of a part of measurement pilot frequency port of cell configuration,

Then map unit is used for the descending sub frame of every group of measurement pilot frequency port mapping to correspondence sent, and wherein, the measurement pilot frequency port of cell configuration comprises some groups, the corresponding configuration of every group of measurement pilot frequency port be used for transmission measurement pilot tone descending sub frame.

13. device according to claim 11 is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration,

Then described map unit is used for measurement pilot frequency with the measurement pilot frequency port and is mapped to each PRB of descending sub frame that a configuration is used for the transmission measurement pilot tone and sends; Or,

Described map unit is used for every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone that measurement pilot frequency with the measurement pilot frequency port is mapped to configuration and sends, and wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups; Or,

Described map unit, be used for the PRB of every group of measurement pilot frequency port mapping to the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of configuration sent, wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, and the measurement pilot frequency port of cell configuration comprises some groups of measurement pilot frequency ports.

14. device according to claim 10 is characterized in that, LTE public guide frequency zone is the public guide frequency zone of 2 o'clock correspondences for the public guide frequency port number.

15., it is characterized in that the shared maximum OFDM symbolic number of PDCCH is 3 according to claim 10 or 14 described devices.

16. device according to claim 10 is characterized in that, described subframe structure is when having the subframe structure of conventional CP, and described measurement pilot frequency zone comprises: at least one OFDM symbol in the 3rd, 8,9 and 10 in the subframe.

17. device according to claim 10 is characterized in that, described subframe structure is that described measurement pilot frequency zone comprises when having the subframe structure of expansion CP: at least one OFDM symbol in the 7th and 8 in the subframe.

18., it is characterized in that the transmission means information of described measurement pilot frequency comprises according to each described device in the claim 10～17: one or more modes in time division multiplexing tdm, frequency division multiplexing FDM and the code division multiplexing CDM mode.

19. the method for reseptance of downlink data is characterized in that in an advanced person the long evolving system, this method comprises:

Carry out the reception of measurement pilot signals according to the measurement pilot frequency structure of subframe structure and configuration, and carry out channel measurement according to the measurement pilot signals that receives, wherein,

20. method according to claim 19 is characterized in that, in described measurement pilot frequency structure, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration; Or,

21. method according to claim 20, it is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot signals of a part of measurement pilot frequency port of cell configuration, then carry out the reception of measurement pilot signals, comprising according to the measurement pilot frequency structure of subframe structure and configuration:

The measurement pilot frequency port of cell configuration comprises some groups, and the descending sub frame that is used for the transmission measurement pilot tone of every group of corresponding configuration of measurement pilot frequency port receives measurement pilot frequency in the descending sub frame of every group of measurement pilot frequency port correspondence.

22. method according to claim 20, it is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration, then carry out the reception of measurement pilot signals, comprising according to the measurement pilot frequency structure of subframe structure and configuration:

In each PRB of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of measurement pilot frequency port correspondence, receive measurement pilot frequency; Or,

Receive measurement pilot frequency in every group of PRB of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of the measurement pilot frequency correspondence of measurement pilot frequency port, wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups; Or,

In the PRB of the corresponding group of the descending sub frame that is used for the transmission measurement pilot tone of the configuration of every group of measurement pilot frequency port correspondence, receive measurement pilot frequency, wherein, the descending sub frame that is used for the transmission measurement pilot tone of each configuration comprises some PRB groups, and the measurement pilot frequency port of cell configuration comprises some groups of measurement pilot frequency ports.

23. method according to claim 19 is characterized in that, LTE public guide frequency zone is the public guide frequency zone of 2 o'clock correspondences for the public guide frequency port number.

24., it is characterized in that the shared maximum OFDM symbolic number of PDCCH is 3 according to claim 19 or 23 described methods.

25. method according to claim 19 is characterized in that, described subframe structure is when having the subframe structure of conventional CP, and described measurement pilot frequency zone comprises: at least one OFDM symbol in the 3rd, 8,9 and 10 in the subframe.

26. method according to claim 19 is characterized in that, described subframe structure is that described measurement pilot frequency zone comprises when having the subframe structure of expansion CP: at least one OFDM symbol in the 7th and 8 in the subframe.

27., it is characterized in that the transmission means information of described measurement pilot frequency comprises according to each described method in the claim 19～26: adopt one or more modes in time division multiplexing tdm, frequency division multiplexing FDM and the code division multiplexing CDM mode.

28. the receiving system of downlink data is characterized in that in an advanced person the long evolving system, this device comprises:

Receiving system, be used for carrying out the reception of signal according to the measurement pilot frequency structure of subframe structure and configuration, described measurement pilot frequency structure comprises the descending sub frame measurement pilot frequency that is used for the transmission measurement pilot tone of each configuration the transmission means regional and measurement pilot frequency of measurement pilot frequency port in this measurement pilot frequency zone, and described measurement pilot frequency zone is for removing public guide frequency place OFDM symbol area, Rel-9/10 dedicated pilot zone, the shared extra-regional part or all of data area of down control channel PDCCH among the long evolving system LTE;

29. device according to claim 28 is characterized in that, in described measurement pilot frequency structure, the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration; Or,

30. device according to claim 29 is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot signals of a part of measurement pilot frequency port of cell configuration,

31. device according to claim 29 is characterized in that, if the measurement pilot frequency zone of the descending sub frame that is used for the transmission measurement pilot tone of each configuration is used to carry the measurement pilot frequency of all measurement pilot frequency ports of cell configuration,

32. device according to claim 28 is characterized in that, LTE public guide frequency zone is the public guide frequency zone of 2 o'clock correspondences for the public guide frequency port number.

33., it is characterized in that the shared maximum OFDM symbolic number of PDCCH is 3 according to claim 28 or 32 described devices.

34. device according to claim 28 is characterized in that, described subframe structure is when having the subframe structure of conventional CP, and described measurement pilot frequency zone comprises: at least one OFDM symbol in the 3rd, 8,9 and 10 in the subframe.

35. device according to claim 28 is characterized in that, described subframe structure is that described measurement pilot frequency zone comprises when having the subframe structure of expansion CP: at least one OFDM symbol in the 7th and 8 in the subframe.

36., it is characterized in that the transmission means information of described measurement pilot frequency comprises according to each described device in the claim 28～35: adopt one or more modes in time division multiplexing tdm, frequency division multiplexing FDM and the code division multiplexing CDM mode.