Summary of the invention
The embodiment of the present invention provides a kind of method and device transmitting pilot configuration information, for realizing to relaying
Node (RN) transmission pilot configuration information, makes via node can receive pilot tone according to pilot configuration information
And carry out channel demodulation.
A kind of method of base station transmission pilot configuration information in relay system, comprises the following steps:
Base station generates the high-level signaling including the pilot configuration information for R-PDCCH configuration;
Described high-level signaling is sent to trunking by base station.
A kind of method of trunking transmission pilot configuration information in relay system, comprises the following steps:
Trunking receive base station send high-level signaling, and parse for R-PDCCH configuration pilot tone join
Confidence ceases;
Trunking receives pilot tone according to the pilot configuration information configured for R-PDCCH.
A kind of base station, including:
Configuration module, for generating the high-level signaling including the pilot configuration information for R-PDCCH configuration;
Interface module, for being sent to trunking by described high-level signaling.
A kind of trunking, including:
Signaling interface module, for receiving the high-level signaling that base station sends, and parses and joins for R-PDCCH
The pilot configuration information put;
Pilot tone interface module, for receiving pilot tone according to the pilot configuration information for R-PDCCH configuration.
In the embodiment of the present invention, the pilot configuration information configured for R-PDCCH is sent out by base station by high-level signaling
Give trunking, make via node can receive pilot tone according to pilot configuration information and R-PDCCH is entered
Row channel demodulates.Pilot configuration information includes pilot type information, pilot frequency port information and pilot frequency port
One or more in information of number, it is also possible to include other information relevant with pilot tone.Pilot type is believed
Breath includes public guide frequency type information or dedicated pilot type information.Therefore, the embodiment of the present invention both solves
The port information problem to trunking of DMRS cannot be notified, solve again and cannot be embodied as equipment
The problem that CRS is separately configured.
Detailed description of the invention
In the embodiment of the present invention, the pilot configuration information configured for R-PDCCH is sent out by base station by high-level signaling
Give trunking, make via node can receive pilot tone according to pilot configuration information and R-PDCCH is entered
Row channel demodulates.Pilot configuration information includes pilot type information and pilot frequency port information, it is also possible to include
Other information relevant with pilot tone.Pilot type information includes public guide frequency type information or dedicated pilot class
At least one in type information.Pilot frequency port information includes the pilot frequency port information for R-PDCCH configuration
With at least one in pilot frequency port information of number.Broadcast channel or dedicated channel are passed through by described height in base station
Layer signaling is sent to trunking.High-level signaling such as wireless heterogeneous networks (RRC) etc..Therefore, the present invention
Embodiment had both solved the port information that cannot notify DMRS to the problem of trunking, solved again nothing
Method is embodied as the problem that equipment is separately configured CRS.
Seeing Fig. 1, the relay system in the present embodiment includes base station and trunking.
Base station is the most mutual with trunking and subscriber equipment, it is also possible to be directly connected with core net (CN).
Base station is for generating the pilot type information included for R-PDCCH configuration, and includes for R-PDCCH
The pilot frequency port information of configuration and/or the high-level signaling of pilot frequency port information of number, and by described high-rise letter
Order is sent to trunking.
Trunking, for forwarding the message between subscriber equipment and base station, receives the high-rise letter that base station sends
Order, and parse the pilot type information into R-PDCCH configuration, and include configuring for R-PDCCH
Pilot frequency port information and/or pilot frequency port information of number, and according to the pilot tone configured for R-PDCCH
Type information, and for R-PDCCH configuration pilot frequency port information and/or pilot frequency port information of number
Receive pilot tone.
Wherein, pilot type information has multiple concrete manifestation form, as realized by type identification, different
Type identification represent public guide frequency and dedicated pilot.Or, represent special with a type identification and lead
Frequently, when high-level signaling carries the type mark, the pilot configuration information of instruction dedicated pilot, if not
Carry the type mark, it indicates that the pilot configuration information of public guide frequency.Can be there to be other form, this
Place does not enumerates.
High-level signaling can include pilot frequency port information and/or pilot frequency port information of number.Such as, high-rise
Signaling can only include pilot frequency port information, and the whole port numbers configured for R-PDCCH are carried by base station
In high-level signaling, the program can be that R-PDCCH configures discontinuous port numbers.High-level signaling can be only
Including pilot frequency port information of number, pilot frequency port information of number can be the coding of concrete numeral or numeral
Deng, the program needs to prenotice trunking and initiates pilot frequency port number, can be notified by high-level signaling
Can also be configured for trunking by Operation and Maintenance entity etc., then high-level signaling is passed through by pilot tone in base station
Port number information notifies that trunking is according to initial pilot frequency port number and pilot frequency port number to trunking
Mesh information determines pilot frequency port number, and if initial pilot frequency port number is 7, pilot frequency port information of number is 2, then
Pilot frequency port number for R-PDCCH configuration is 7 and 8.The program is primarily adapted for use in configuration continuous print pilot tone
Port numbers, and relative to only including the mode of pilot frequency port information, Signalling length can be saved.High-rise
When signaling includes pilot frequency port information and pilot frequency port information of number, pilot frequency port information can be
Beginning pilot frequency port number, trunking determines pilot tone according to initial pilot frequency port number and pilot frequency port information of number
Port numbers, which is relative to the mode only carrying pilot frequency port information of number, it may not be necessary to fixes and joins
Put initial pilot frequency port number, different initial pilot frequency port number can be specified during configuration every time.And joining
When the pilot frequency port number put is more, more save signaling money relative to the mode only carrying pilot frequency port information
Source.If being pre-configured with the corresponding relation of initial pilot frequency port number and pilot type information, such as public guide frequency
Initial pilot frequency port number be 0, the initial pilot frequency port number of dedicated pilot is 7, then can be at high-level signaling
Middle omission pilot type information, is represented by pilot frequency port embodying information.If fixed configurations pilot frequency port number
Mesh information and the corresponding relation being pre-configured with initial pilot frequency port number and pilot type information, the most only by height
Floor signals pilot type information also can imply expression pilot frequency port information and pilot frequency port information of number.
To sum up, high-level signaling can only carry pilot type information, or only carries pilot frequency port information, or
Carry pilot type information and pilot frequency port information of number, or carry pilot frequency port information and pilot frequency port
Information of number, or carry pilot type information, pilot frequency port information and pilot frequency port information of number.
Seeing Fig. 2, the base station in the present embodiment includes: configuration module 201 and interface module 202.Base station
The evolution base station (eNB) etc. can being specially in Long Term Evolution (LTE) system.
Configuration module 201 is for generating the pilot type information included for R-PDCCH configuration, and includes
Pilot frequency port information and/or the high-level signaling of pilot frequency port information of number for R-PDCCH configuration.Lead
Frequently type information includes public guide frequency type information or dedicated pilot type information.
Interface module 202 is for being sent to trunking by described high-level signaling.Interface module 202 is additionally operable to
According to the pilot type information configured for R-PDCCH, and according to the pilot tone end configured for R-PDCCH
Number information and/or pilot frequency port information of number, be transmitted as leading of R-PDCCH configuration in R-PDCCH
Frequently.
R-PDCCH can be configured in multiple Physical Resource Block (PRB).When configuration module 201 needs
When configuring pilot tone for the R-PDCCH in multiple Physical Resource Block, described high-level signaling also includes physical resource
The beacon information of block.In described high-level signaling, the beacon information of multiple Physical Resource Block corresponding identical or
Different pilot frequency port information;And/or, the beacon information correspondence of multiple Physical Resource Block is identical or different
Pilot frequency port information of number.Identical leading is configured if the R-PDCCH in multiple Physical Resource Block
Frequently, pilot frequency port number corresponding for the most each R-PDCCH is identical, then can save in described high-level signaling
The slightly beacon information of Physical Resource Block.
Interface module 202 is additionally operable to be transmitted as by R-PDCCH the physical down of relaying and shares data channel
(R-PDSCH) the pilot frequency port information configured and/or pilot frequency port information of number.Join for R-PDSCH
The pilot frequency port information put and/or the form of expression of pilot frequency port information of number can be found in as R-PDCCH
The pilot frequency port information of configuration and/or pilot frequency port information of number.Configuration module 201 be R-PDCCH with
The pilot frequency port information of R-PDSCH configuration is identical or different;And/or, configuration module is
The pilot frequency port information of number of R-PDCCH with R-PDSCH configuration is identical or different.Interface module 202
It is additionally operable to according to the pilot type information for R-PDSCH configuration, and according to configuring for R-PDSCH
Pilot frequency port information and/or pilot frequency port information of number, be transmitted as R-PDSCH in R-PDSCH and join
The pilot tone put.
Seeing Fig. 3, the trunking in the present embodiment includes: signaling interface module 301 and pilot tone interface mould
Block 302.
Signaling interface module 301 is for receiving the high-level signaling that base station sends, and parses as R-PDCCH
The pilot type information of configuration, and include the pilot frequency port information configured for R-PDCCH and/or lead
Frequently port number information.
Pilot tone interface module 302 is for according to the pilot type information for R-PDCCH configuration, Yi Jiwei
Pilot frequency port information and/or the pilot frequency port information of number of R-PDCCH configuration receive pilot tone.
Trunking also includes: estimate demodulation module 303, for after receiving pilot tone, according to leading of receiving
Frequency carries out channel estimation and demodulation to R-PDCCH.
Estimate that demodulation module 303 is additionally operable to after being demodulated R-PDCCH, it is thus achieved that for R-PDSCH
The pilot frequency port information of configuration and/or pilot frequency port information of number.Pilot tone interface module 302 is additionally operable to root
Pilot tone is received according to the pilot frequency port information configured for R-PDSCH and/or pilot frequency port information of number.Estimate
Demodulation module 303 carries out channel estimation and demodulation according to the pilot tone received to R-PDSCH.Due to permissible
In multiple Physical Resource Block, configure R-PDSCH, then also can transmitting physical Resource Block in R-PDCCH
Beacon information, the beacon information of multiple Physical Resource Block can correspond to different the leading of R-PDSCH configuration
Frequently configuration information.
When described high-level signaling includes the beacon information of Physical Resource Block, and the sign of multiple Physical Resource Block
During the corresponding different pilot configuration information of information, estimate that demodulation module 303 is in multiple Physical Resource Block
R-PDCCH carries out channel estimation and demodulation respectively.The beacon information of multiple Physical Resource Block is corresponding identical
During pilot frequency port, estimate that demodulation module 303 can be according to the pilot tone received simultaneously in multiple Physical Resource Block
R-PDCCH carry out channel estimation and demodulation.
The foregoing describe base station and the internal structure of trunking and function, real to base station and trunking below
The transmitting procedure of existing pilot configuration information is introduced.
Seeing Fig. 4, in the present embodiment, during transmission pilot configuration information, the method for base station side realizes flow process such as
Under:
Step 401: base station generates the high-level signaling including the pilot configuration information for R-PDCCH configuration.
Step 402: described high-level signaling is sent to trunking by base station.
Seeing Fig. 5, in the present embodiment, during transmission pilot configuration information, the method detailed of base station side realizes stream
Journey is as follows:
Step 501: base station generates the pilot type information included for configuration, and includes for R-PDCCH
The pilot frequency port information of configuration and/or the high-level signaling of pilot frequency port information of number.
Step 502: described high-level signaling is sent to trunking by base station.Base station can also be according to being
The pilot type information of R-PDCCH configuration, and according to the pilot frequency port number letter configured for R-PDCCH
Breath and/or pilot frequency port information of number, be transmitted as the pilot tone of R-PDCCH configuration in R-PDCCH.
Step 503: base station generate include for R-PDSCH configuration pilot type information, and include for
The pilot frequency port information of R-PDSCH configuration and/or the configuration message of pilot frequency port information of number.
Step 504: configuration message is sent to trunking by R-PDCCH by base station.Base station is all right
According to the pilot type information configured for R-PDSCH, and according to the pilot tone end configured for R-PDSCH
Number information and/or pilot frequency port information of number, be transmitted as leading of R-PDSCH configuration in R-PDSCH
Frequently.
Wherein, step 501 and 502 is two relatively independent processes with step 503 and 504, performs suitable
Sequence can be exchanged.
Seeing Fig. 6, in the present embodiment, during transmission pilot configuration information, the method for trunking side realizes stream
Journey is as follows:
Step 601: trunking receives the high-level signaling that base station sends, and parses and join for R-PDCCH
The pilot configuration information put.
Step 602: trunking receives pilot tone according to the pilot configuration information configured for R-PDCCH.
Seeing Fig. 7, in the present embodiment, during transmission pilot configuration information, the method detailed of trunking side is real
Existing flow process is as follows:
Step 701: trunking receives the high-level signaling that base station sends.
Step 702: trunking parses the pilot type letter into R-PDCCH configuration from high-level signaling
Breath, and include the pilot frequency port information for R-PDCCH configuration and/or pilot frequency port information of number.
Step 703: trunking according to the pilot configuration information configured for R-PDCCH from R-PDCCH
Middle acquisition pilot tone.
Step 704: trunking carries out channel estimation and demodulation according to the pilot tone received to R-PDCCH.
Obtain from R-PDCCH include for R-PDSCH configuration pilot type information, and include for
The pilot frequency port information of R-PDCCH configuration and/or the configuration message of pilot frequency port information of number.When described
High-level signaling includes the beacon information of Physical Resource Block, and the beacon information correspondence of multiple Physical Resource Block is not
With pilot frequency port time, trunking carries out channel respectively and estimates the R-PDCCH in multiple Physical Resource Block
Meter and demodulation.
Step 705: trunking obtains the pilot frequency port number letter into R-PDSCH configuration from R-PDCCH
Breath and/or pilot frequency port information of number.
Step 706: trunking according to the pilot configuration information configured for R-PDSCH from R-PDSCH
Obtain pilot tone.
Step 707: trunking carries out channel estimation and demodulation according to the pilot tone received to R-PDSCH.
When described configuration message includes the beacon information of Physical Resource Block, and the beacon information of multiple Physical Resource Block
During corresponding different pilot frequency port, the R-PDSCH in multiple Physical Resource Block is carried out by trunking respectively
Channel is estimated and demodulation.
The storages such as floppy disk, hard disk, CD and flash memory can be stored in for realizing the software of the embodiment of the present invention
Medium.
In the embodiment of the present invention, the pilot configuration information configured for R-PDCCH is sent out by base station by high-level signaling
Give trunking, make via node can receive pilot tone according to pilot configuration information and R-PDCCH is entered
Row channel demodulates.Pilot configuration information includes pilot type information, pilot frequency port information and pilot frequency port
One or more in information of number, it is also possible to include other information relevant with pilot tone.Pilot type is believed
Breath includes public guide frequency type information or dedicated pilot type information.Therefore, the embodiment of the present invention both solves
The port information problem to trunking of DMRS cannot be notified, solve again and cannot be embodied as equipment
The problem that CRS is separately configured.
Embodiments provide various ways carry pilot type information, pilot frequency port information and lead
Frequently port number information, to adapt to the needs of multiple network environment.The embodiment of the present invention can be also multiple
Pilot configuration information differently configured for R-PDCCH and R-PDSCH in PRB, and can be
The pilot configuration information that R-PDCCH and R-PDSCH is differently configured, it is achieved the flexible configuration of pilot tone, is suitable for
In time division multiplex system and Frequency Division Multiplexing system.
Obviously, those skilled in the art can carry out various change and modification without deviating from this to the present invention
Bright spirit and scope.So, if the present invention these amendment and modification belong to the claims in the present invention and
Within the scope of its equivalent technologies, then the present invention is also intended to comprise these change and modification.