CN104521286A - Data transmission method, apparatus and system - Google Patents

Data transmission method, apparatus and system Download PDF

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Publication number
CN104521286A
CN104521286A CN201380001592.2A CN201380001592A CN104521286A CN 104521286 A CN104521286 A CN 104521286A CN 201380001592 A CN201380001592 A CN 201380001592A CN 104521286 A CN104521286 A CN 104521286A
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frequency resource
frequency
information
terminal
base station
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CN104521286B (en
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栗忠峰
卢建民
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery

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  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Embodiments of the present invention provide a data transmission method, apparatus and system, which relate to the technical field of communications. The method comprises: a base station allocating a first frequency resource for a terminal, a bandwidth of the first frequency resource being less than or equal to transmission bandwidth configuration of the terminal, and the transmission bandwidth configuration of the terminal being less than transmission bandwidth configuration of the base station; and the base station sending information of the first frequency resource to the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and receives data sent by the base station according to the first frequency resource. By means of the preset invention, resource utilization of a wireless communication system can be improved.

Description

Data transmission method, apparatus and system
A kind of methods, devices and systems technical field of data transfer of specification
The present invention relates to communication technical field, more particularly to a kind of methods, devices and systems of data transfer.Background technology
With the development of the communication technology, narrowband terminal is just gradually risen, and is based especially on machine communication
The MTC terminal of (machine type communication, MTC) technology.Typical MTC applications can include environmental monitoring, intelligent meter data recording etc..The characteristics of narrowband terminal is, the packet of transmission is small, the cycle of communication is long, cost requirement is low, quantity is huger etc., the transmission bandwidth configuration of especially narrowband terminal is much lower relative to ordinary terminal, and the transmission bandwidth configuration of ordinary terminal is configured up to the maximum transmission bandwidth of base station on a single carrier, i.e., 100 resource blocks（Resource Block, RB), the transmission bandwidth configuration of narrowband terminal is generally 6 RB, much smaller than 100 RB.
In traditional wireless communication system（Such as Long Term Evolution (Long Term Evolution, LTE) system) in, when base station is to ordinary terminal transmission data, include Downlink Control Information in the subframe sent to terminal, at least one RB enterprising row data of the Downlink Control Information instruction terminal in transmission bandwidth configuration are extracted.Ordinary terminal is received to the RB in the configuration of whole transmission bandwidth, and according to control information therein, the data on RB for extracting instruction in whole RB of reception.
During the present invention is realized, inventor has found that prior art at least has problems with：Narrowband terminal is applied in traditional wireless communication system, is the intermediate frequency resource location reception data in the transmission bandwidth configuration of base station after narrowband terminal networking, the transmission bandwidth configuration scope of narrowband terminal can only be received（Such as 6 RB) in data, when carrying out data transmission, if the control information that base station is sent is indicated to the frequency resource position of the extraction data of the terminal not in the range of the configuration of terminal current transmission bandwidth, at this moment, narrowband terminal is after the subframe for carrying the control information is received, the data in the range of the configuration of its current transmission bandwidth can only be got, and the data of the frequency resource position of control information instruction can not be received, it will lead to not carry out data transmission, so, based on prior art, in a wireless communication system, narrowband terminal can only operate in the intermediate frequency resource location of the transmission bandwidth configuration of base station, so, substantial amounts of system resource will be wasted. The content of the invention
In order to solve the above-mentioned problems in the prior art, the embodiments of the invention provide a kind of methods, devices and systems of data transfer, to improve the resource utilization of wireless communication system.The technical scheme is as follows：First aspect includes there is provided a kind of method of data transfer, methods described：
Base station is terminal distribution first frequency resource, and the bandwidth of the first frequency resource is less than or equal to the transmission bandwidth configuration of the terminal, and the transmission bandwidth configuration of the terminal is configured less than the transmission bandwidth of the base station；
The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and receives the data that the base station is sent according to the first frequency resource.
In the first possible implementation of the first aspect, the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, including：
The reference frequency information of the first frequency resource is sent to the terminal by the base station, to cause the terminal to determine the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
In second of possible implementation of the first aspect, the information of the first frequency resource is sent to the terminal by the base station, including：
The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource is sent to the terminal by the base station.
With reference to the first or second of possible implementation of the first aspect, in the third possible implementation of the first aspect, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
With reference to first aspect the first one of to the third possible implementation, in the 4th kind of possible implementation, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
With reference to first aspect or first aspect the first one of to the 4th kind of possible implementation, described In 5th kind of possible implementation of first aspect, the information of the first frequency resource is sent to the terminal by the base station, is specially：
The information of the first frequency resource is sent to the terminal by the base station by physical downlink control channel PDCCH；Or,
The base station is sent to the terminal by strengthening Physical Downlink Control Channel EPDCCH by the information of the first frequency resource；Or,
The information of the first frequency resource is sent to the terminal by the base station by broadcast channel；Or,
The information of the first frequency resource is sent to the terminal by the base station by Physical Downlink Shared Channel PDSCH.
With reference to first aspect or first aspect the first one of to the 5th kind of possible implementation, in the 6th kind of possible implementation of the first aspect, base station is terminal distribution first frequency resource, including：The base station divides at least one frequency resource according to the configuration of the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the transmission bandwidth configuration of the terminal；
Determine first frequency resource allocation to the terminal from least one described frequency resource in the base station.
With reference to the 6th kind of possible implementation of the first aspect, in the 7th kind of possible implementation of the first aspect, the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the data that the base station is sent are received according to the first frequency resource, including：
The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource.
With reference to the 7th kind of possible implementation of the first aspect, in the 8th kind of possible implementation of the first aspect, the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource, including：The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource using identical reference signal sequence is received according to the first frequency resource. With reference to the 7th kind of the first aspect or the 8th kind of possible implementation, in the 9th kind of possible implementation of the first aspect, the information of the first frequency resource is sent to the terminal by the base station, including：
The information of the first frequency resource and the corresponding reference signal information of at least one described frequency resource are sent to the terminal by the base station.
One of the 7th kind to the 9th kind possible implementation with reference to first aspect, in the tenth kind of possible implementation of the first aspect, methods described also includes：
The base station determines not including the RE that cell special reference CRS is used in the resource element RE that enhancing resource element groups EREG is used.
With reference to first aspect the first one of to the tenth kind of possible implementation, in a kind of the tenth possible implementation of the first aspect, the information of the first frequency resource is sent to after the terminal by the base station, in addition to：
The base station sends data at least one subcarrier, and the subcarrier includes the corresponding subcarrier of the reference frequency.
Second aspect includes there is provided a kind of method of data transfer, methods described：
Terminal receives the information for the first frequency resource that base station is sent；
The terminal determines the first frequency resource according to the information of the first frequency resource；The terminal receives the data that the base station is sent according to the first frequency resource.
In the first possible implementation of the second aspect, the information of the first frequency resource includes：The reference frequency information of the first frequency resource；
The terminal determines the first frequency resource according to the information of the first frequency resource, including：The terminal determines the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
In second of possible implementation of the second aspect, the information of the first frequency resource includes：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource；
The terminal determines the first frequency resource according to the information of the first frequency resource, including：The terminal determines the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, it is determined that described First frequency resource.
With reference to the first or second of possible implementation of the second aspect, in the third possible implementation of the second aspect, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
With reference to second aspect the first one of to the third possible implementation, in the 4th kind of possible implementation of the second aspect, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
With reference to second aspect or second aspect the first one of to the 4th kind of possible implementation, in the 5th kind of possible implementation of the second aspect, the terminal receives the information for the first frequency resource that base station is sent, and is specially：
The terminal receives the information for the first frequency resource that base station is sent by physical downlink control channel PDCCH；Or,
The terminal receives the information for the first frequency resource that base station is sent by strengthening Physical Downlink Control Channel EPDCCH；Or,
The terminal receives the information for the first frequency resource that base station is sent by broadcast channel；Or, the terminal receives the information for the first frequency resource that base station is sent by Physical Downlink Shared Channel PDSCH.
With reference to second aspect or second aspect the first one of to the 5th kind of possible implementation, in the 6th kind of possible implementation of the second aspect, the terminal receives the data that the base station is sent according to the first frequency resource, including：
The terminal receives the reference signal that the base station is sent according to the first frequency resource.
With reference to the 6th kind of possible implementation of the second aspect, in the 7th kind of possible implementation of the second aspect, the terminal receives the information for the first frequency resource that base station is sent, including：
The terminal receives the information reference signal information corresponding with least one frequency resource for the first frequency resource that base station is sent, at least one described frequency resource is that the base station configures what is divided according to the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the terminal transmission band width configuration.
With reference to the 6th kind of the second aspect or the 7th kind of possible implementation, in the 8th kind of possible implementation of the second aspect, methods described also includes： The terminal carries out channel estimation, time domain or frequency domain synchronization or channel quality measurement according to the reference signal received, and the reference signal information.
The third aspect includes there is provided a kind of base station, the base station：
Distribute module, the transmission bandwidth for being less than or equal to the terminal for the bandwidth for terminal distribution first frequency resource, the first frequency resource is configured, and the transmission bandwidth configuration of the terminal is configured less than the transmission bandwidth of the base station；
Sending module, for the information of the first frequency resource to be sent into the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the data that the base station is sent are received according to the first frequency resource.
In the first possible implementation of the third aspect, the sending module is used for：The reference frequency information of the first frequency resource is sent to the terminal, to cause the terminal to determine the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
In second of possible implementation of the third aspect, the sending module is used for：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource is sent to the terminal.
With reference to the first or second of possible implementation of the third aspect, in the third possible implementation of the third aspect, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
With reference to the third aspect the first one of to the third possible implementation, in the 4th kind of possible implementation, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
With reference to the third aspect or the third aspect the first one of to the 4th kind of possible implementation, in the 5th kind of possible implementation of the third aspect, the sending module is used for：
The information of the first frequency resource is sent to by the terminal by physical downlink control channel PDCCH;Or,
The terminal is sent to by strengthening Physical Downlink Control Channel EPDCCH by the information of the first frequency resource；Or, The information of the first frequency resource is sent to by the terminal by broadcast channel；Or, the information of the first frequency resource is sent to by the terminal by Physical Downlink Shared Channel PDSCH.
With reference to the third aspect or the third aspect the first one of to the 5th kind of possible implementation, in the 6th kind of possible implementation of the third aspect, the distribute module is used for：
At least one frequency resource is divided according to the configuration of the transmission bandwidth of the base station, the bandwidth of at least one frequency resource is less than or equal to the transmission bandwidth configuration of the terminal；
Determine first frequency resource allocation to the terminal from least one described frequency resource.
With reference to the 6th kind of possible implementation of the third aspect, in the 7th kind of possible implementation of the third aspect, the sending module is used for：
The information of the first frequency resource is sent to the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource.
With reference to the 7th kind of possible implementation of the third aspect, in the 8th kind of possible implementation of the third aspect, the sending module is used for：
The information of the first frequency resource is sent to the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource using identical reference signal sequence is received according to the first frequency resource.
With reference to the 7th kind of the third aspect or the 8th kind of possible implementation, in the 9th kind of possible implementation of the third aspect, the sending module is used for：
The information of the first frequency resource and the corresponding reference signal information of at least one described frequency resource are sent to the terminal.
One of the 7th kind to the 9th kind possible implementation with reference to the third aspect, in the tenth kind of possible implementation of the third aspect, the sending module is additionally operable to：
It is determined that not including the RE that cell special reference CRS is used in the resource element RE that enhancing resource element groups EREG is used.
With reference to the third aspect the first one of to the tenth kind of possible implementation, in a kind of the tenth possible implementation of the third aspect, the sending module is additionally operable to：
Data are sent at least one subcarrier, the subcarrier includes the corresponding subcarrier of the reference frequency.
Fourth aspect includes there is provided a kind of terminal, the terminal： Information receiving module, the information of the first frequency resource for receiving base station transmission；
Determining module, for determining the first frequency resource according to the information of the first frequency resource；Data reception module, for receiving the data that the base station is sent according to the first frequency resource.In the first possible implementation of the fourth aspect, the information of the first frequency resource includes：The reference frequency information of the first frequency resource；
The determining module, is used for：
The reference frequency of the first frequency resource is determined according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
In second of possible implementation of the fourth aspect, the information of the first frequency resource includes：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource；
The determining module, is used for：
The reference frequency of the first frequency resource is determined according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
With reference to the first or second of possible implementation of the fourth aspect, in the third possible implementation of the fourth aspect, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
With reference to fourth aspect the first one of to the third possible implementation, in the 4th kind of possible implementation of the fourth aspect, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
With reference to fourth aspect or fourth aspect the first one of to the 4th kind of possible implementation, in the 5th kind of possible implementation of the fourth aspect, described information receiving module is used for：
The information for the first frequency resource that base station is sent is received by physical downlink control channel PDCCH；Or,
The information for the first frequency resource that base station is sent is received by strengthening Physical Downlink Control Channel EPDCCH；Or, The information for the first frequency resource that base station is sent is received by broadcast channel；Or,
The information for the first frequency resource that base station is sent is received by Physical Downlink Shared Channel PDSCH.With reference to fourth aspect or fourth aspect the first one of to the 5th kind of possible implementation, in the 6th kind of possible implementation of the fourth aspect, the data reception module is used for：
The reference signal that the base station is sent is received according to the first frequency resource.
With reference to the 6th kind of possible implementation of the fourth aspect, in the 7th kind of possible implementation of the fourth aspect, described information receiving module is used for：
Receive the information reference signal information corresponding with least one frequency resource for the first frequency resource that base station is sent, at least one described frequency resource is that the base station configures what is divided according to the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the terminal transmission band width configuration.
With reference to the 6th kind of the fourth aspect or the 7th kind of possible implementation, in the 8th kind of possible implementation of the fourth aspect, the data reception module is additionally operable to：
According to the reference signal received, and the reference signal information, channel estimation, time domain or frequency domain synchronization or channel quality measurement are carried out.
5th aspect includes base station as described above and terminal there is provided a kind of system of data transfer, the system.
The beneficial effect of technical scheme provided in an embodiment of the present invention is：
In the embodiment of the present invention, base station is terminal distribution frequency resource in the configuration of its transmission bandwidth, and the information of the frequency resource is sent into the terminal, terminal is received the data that base station is sent according to the frequency resource.So, the data transfer of base station and terminal can be carried out in the frequency resource of intermediate frequency resource location for being not limited to the configuration of its transmission bandwidth, it is thus possible to improve the resource utilization of wireless communication system.Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the accompanying drawing used required in being described below to embodiment is made cylinder and singly introduced, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the method flow diagram of data transfer provided in an embodiment of the present invention；
Fig. 2 is the method flow diagram of data transfer provided in an embodiment of the present invention；
Fig. 3 is the method flow diagram of data transfer provided in an embodiment of the present invention；
Fig. 4 is the structural representation of base station provided in an embodiment of the present invention； Fig. 5 is the structural representation of terminal provided in an embodiment of the present invention.Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
The embodiments of the invention provide a kind of method of data transfer, as shown in figure 1, this method can include the steps in the handling process of base station side：
Step 101, base station is terminal distribution first frequency resource.Wherein, the bandwidth of first frequency resource is less than or equal to the transmission bandwidth configuration of terminal, and the transmission bandwidth configuration of terminal is configured less than the transmission bandwidth of base station.
The transmission bandwidth configuration of terminal or the transmission bandwidth configuration of base station are usually expressed as N number of RB, it is to be appreciated that 1RB can be 180KHz frequency bandwidths, for details, reference can be made to prior art, will not be repeated here.
First frequency resource can be a band frequency, for example, first frequency resource is represented with lOMHz ~ 15MHz, a width of 5 Μ Η ζ of band of first frequency resource.It should be noted that above-mentioned be merely illustrative, the invention is not restricted to this.
Step 102, the information of first frequency resource is sent to terminal by base station, so that terminal determines first frequency resource according to the information of the frequency resource, and receives the data that base station is sent according to first frequency resource.
As shown in Fig. 2 this method can include the steps in the handling process that terminal is surveyed：
Step 201, terminal receives the information for the first frequency resource that base station is sent.
Step 202, terminal determines first frequency resource according to the information of first frequency resource.
Step 203, terminal receives the data that base station is sent according to first frequency resource.
In the embodiment of the present invention, base station is terminal distribution frequency resource in the configuration of its transmission bandwidth, and the information of the frequency resource is sent into the terminal, terminal is received the data that base station is sent according to the frequency resource.So, the data transfer of base station and terminal can be carried out in the frequency resource of intermediate frequency resource location for being not limited to the configuration of its transmission bandwidth, it is thus possible to improve the resource utilization of wireless communication system.Embodiment two
The embodiments of the invention provide a kind of method of data transfer, the executive agent of the handling process shown in above-mentioned Fig. 1 can be preferably base station, and the executive agent of the handling process shown in Fig. 2 can be terminal.Terminal in this method can be preferably narrowband terminal.Below will be by taking narrowband terminal as an example, with reference to the transmission of reference signal Process, data transmission method provided in an embodiment of the present invention is explained in detail.
Reference signal（Reference Signal, RS) (it can also claim pilot signal）It is generally used for carrying out channel estimation acquisition demodulation parameter, or it is synchronous for time-domain and frequency-domain, it is additionally operable to channel quality measurement etc..RS application process can be, base station and terminal have been made an appointment different frequency resource（Several RB) in RS sequences（Generated by pseudo-random sequence, each element in sequence is plural number）, base station sends RS sequences to terminal, and the RS sequences received and the RS sequences made an appointment are compared by terminal in each frequency resource, and corresponding parameter is obtained by calculating.
As shown in figure 3, the handling process of data transmission method provided in an embodiment of the present invention may include steps of：
Step 301, base station is that narrowband terminal distributes first frequency resource.Wherein, the bandwidth of the first frequency resource is less than or equal to the transmission bandwidth configuration of the narrowband terminal, and the transmission bandwidth configuration of the narrowband terminal is configured less than the transmission bandwidth of base station.The first frequency resource distributed for narrowband terminal can be referred to as a kind of narrow band frequency resource（The present embodiment some be specifically described in use this title）.
In the step, specifically, base station can choose a part of frequency resource as the first frequency resource for distributing to the narrowband terminal according to the distribution of resource in the transmission bandwidth configuration of base station.Multiple narrowband terminals can be dispatched in first frequency resource.And, the bandwidth of first frequency resource is configured no more than the transmission bandwidth of narrowband terminal, so, narrowband terminal can be received to the data sent in whole first frequency resource, the transmission bandwidth that the bandwidth of first frequency resource can be equal to narrowband terminal is configured, such as 6 RB, that is, 1080KHz.
Additionally, it is preferred that, base station divides at least one frequency resource in being configured according to its transmission bandwidth, the bandwidth of this at least one frequency resource is less than or equal to the transmission bandwidth configuration of narrowband terminal.When performing step 301, base station can determine first frequency resource allocation to the narrowband terminal in this at least one frequency resource.
The bandwidth value that can be configured according to the transmission bandwidth of base station（Such as RB numbers）, in the configuration of its transmission bandwidth, the bandwidth value identical frequency resource that multiple transmission bandwidths with narrowband terminal are configured is marked off, the utilization rate of the number more at most bandwidth resources of the frequency resource of division is higher.For example, the transmission bandwidth of base station is configured to 66 RB, the transmission bandwidth of narrowband terminal is configured to 6 RB, and the transmission bandwidth configuration of base station, which can be divided into 11 frequency resources, each frequency resource, can dispatch multiple narrowband terminals.When performing the step, base station can choose one in multiple frequency resources and narrowband terminal is scheduled as first frequency resource, and in the first frequency scope of resource of selection.
Step 302, the information of first frequency resource is sent to the narrowband terminal by base station. The information of first frequency resource is used to determine position of the frequency resource on frequency domain, can be specifically：The starting frequency position of frequency resource and the bandwidth of frequency resource；Or, the bandwidth for terminating frequency location and frequency resource of frequency resource；Or, the starting frequency position and the end frequency location of frequency resource of frequency resource；Or, intermediate frequency position and the bandwidth of frequency resource of frequency resource.
Wherein, the starting frequency position of frequency resource can be the starting frequency of the frequency resource, or the corresponding color of starting frequency is to the RB numberings of Radio Frequency Channel Number (Absolute Radio Frequency Channel Number, ARFCN) information, or starting.Terminate the end frequency that frequency location can be narrow band frequency resource, or terminate the corresponding ARFCN information of frequency, or the RB numberings terminated.Intermediate frequency position can be the middle frequency of narrow band frequency resource, or the corresponding ARFCN information of middle frequency.Or, when narrow band frequency resource is odd number RB, intermediate frequency position can be middle RB numbering；When narrow band frequency resource is even number RB, intermediate frequency position can be in two middle RB numbering be odd number RB numbering, or intermediate frequency position can be in two middle RB numbering be even number RB numbering.ARFCN information can be that ARFCN numerical value can also can correspond to the other information for obtaining ARFCN numerical value.
The setting numbered for above-mentioned RB, can be in the following way：A kind of mode is, to system maximum RB numbers（110）Corresponding all RB are numbered, and another way is that RB included in the transmission bandwidth configuration of base station is numbered.
In addition, base station and narrowband terminal can make an appointment, the bandwidth of the frequency resource of distribution, i.e. base station and narrowband terminal prestore the bandwidth of the frequency resource of distribution respectively, then the information of this frequency resource can be：The starting frequency position of frequency resource；Or, the end frequency location of frequency resource；Or, the intermediate frequency position of frequency resource.
In addition, the information of first frequency resource can also be the reference frequency information of first frequency resource, the reference frequency information can be corresponding ARFCN information of value of frequency point or reference frequency of reference frequency etc., wherein, reference frequency can be that reference frequency is in the range of corresponding first frequency resource as the frequency for determining first frequency resource position on frequency domain.
Accordingly, the processing of the step can be：The reference frequency information of first frequency resource is sent to narrowband terminal by base station；Or, the bandwidth of the reference frequency information of first frequency resource and first frequency resource is sent to narrowband terminal by base station.Accordingly, narrowband terminal determines the reference frequency of first frequency resource according to the reference frequency information of first frequency resource, and according to the reference frequency of first frequency resource, the bandwidth of first frequency resource（Can be that to prestore can also be that base station is sent) and first frequency resource relative position of the reference frequency in first frequency resource, determine first frequency resource.For example, the bandwidth of first frequency resource For 2MHz, reference frequency is 15MHz, and frequency is in the centre position of first frequency resource on the basis of the relative position of the reference frequency of first frequency resource in first frequency resource, then, it may be determined that first frequency resource is 14 ~ 16MHz.
In this case, can make an appointment relative position information of the reference frequency in first frequency resource, i.e. narrowband terminal and base station of base station and narrowband terminal prestores relative position information of the reference frequency in first frequency resource respectively.The bandwidth of first frequency resource in addition, base station and narrowband terminal can also make an appointment.Above-mentioned relative position information can be the subcarrier where reference frequency in RB in each RB of first frequency resource where the reference frequency and RB, for example, can arrange on the 2nd RB of the reference frequency in 6 RB of narrow band frequency resource the 2nd subcarrier（By low frequency number）.
It is preferred that, the reference frequency of first frequency resource can be initial frequency, intermediate frequency or terminate frequency.
Optionally, the corresponding subcarrier of said reference frequency information can be used for the transmission for carrying out data（Transmission including data message or control information）.
It is preferred that, said reference frequency information can be the ARFCN of reference frequency.
Expense is sent in order to reduce ARFCN, ARFCN can be grouped by the size order of respective frequencies in advance, include preset number ARFCN in every group, identified for each component combo, and be to be numbered in the interior numberings of order-assigned group of each ARFCN in group by respective frequencies, corresponding group of mark of terminal and each ARFCN of base station stored and group.Based on this, above-mentioned ARFCN information can include numbering in corresponding ARFCN group mark and group.So, by the way of being numbered in the group mark and group for sending ARFCN, substitution directly transmits ARFCN, can reduce the expense of ARFCN transmissions, and terminal is assured that corresponding frequency according to numbering in group mark and group.
In addition, reference frequency information can also be numberings of the ARFCN of reference frequency in the affiliated frequency band packets of ARFCN of reference frequency, wherein, the affiliated frequency band packets of ARFCN are that the obtained set of the ARFCN with same frequency band is divided according to the affiliated frequency bands of ARFCN.
When being grouped to ARFCN, each ARFCN can be multigroup according to the different demarcation of affiliated frequency band, can belong to same frequency band by corresponding ARFCN in identical frequency band points in a group（Belong to identical group）Multiple ARFCN be each assigned frequency band packet in numbering, ARFCN group mark can use its affiliated frequency band information.Base station and terminal, which can make an appointment, stores ARFCN and the corresponding relation of the numbering in affiliated frequency band, frequency band packet, so, terminal can be according to belonging to the numbering of the ARFCN of the reference frequency received in the affiliated frequency band packets of ARFCN of reference frequency and terminal be current frequency band, determine corresponding reference frequency.Here group mark can correspond to band information, and band information can be owned in frequency band The corresponding beginning carrier frequency values of ARFCN, i.e. the beginning carrier frequency value of frequency band, frequency band packet in numbering corresponding A RFCN numerical value or correspondingly relative to beginning carrier frequency value frequency offseting value.The bit that numbering in frequency band packet is used（Bit) number can be all groups（Or frequency band）In have most ARFCN group required for bit number.
In above-mentioned processing, it is only necessary to send the mark in ARFCN frequency band packet, substitution directly transmits ARFCN, can reduce the expense of ARFCN transmissions.For example, 256 ARFCN defined in system, so, transmission ARFCN then needs 8bit, if being 8 groups, every group 32 by 256 ARFCN points, numbering in so each frequency band packet then has 32, numbering needs 5bit in corresponding transmission group, has saved specifically, base station can be by Physical Downlink Control Channel（Physical Downlink Control Channal, PDCCH) information of first frequency resource is sent to narrowband terminal；Or, can be by strengthening Physical Downlink Control Channel (Enhanced Physical Downlink Control Channal, EPDCCH the information of first frequency resource) is sent to narrowband terminal, can specifically pass through Downlink Control Information on PDCCH and EPDCCH（Downlink Control Information, DCI) message is transmitted；Or, the information of first frequency resource can be sent to by narrowband terminal by broadcast channel, can be specifically transmitted over the broadcast by Master Information Block (Master Information Block, MIB) message；Or, Physical Downlink Shared Channel can be passed through（Physical Downlink Shared Channel, PDSCH) information of first frequency resource is sent to narrowband terminal, it can specifically pass through wireless heterogeneous networks on PDSCH（Radio Resource Control, RRC) message or Media access contorl（Media Access Control Control Element, MAC CE) information of first frequency resource is sent to narrowband terminal by message.
Step 303, narrowband terminal receives the information for the first frequency resource that base station is sent.Specifically, the information for the first frequency resource that narrowband terminal can be sent by PDCCH, EPDCCH, PDSCH or broadcast channel reception base station.
Step 304, narrowband terminal determines first frequency resource according to the information of first frequency resource.
Further, the corresponding frequency resource of self transmission band width configuration can be set to the first frequency resource by narrowband terminal according to the information of first frequency resource.It can be specifically the carrier frequency that the carrier frequency of the corresponding channel width of self transmission band width configuration is set to the channel width corresponding to the first frequency resource.The transmission bandwidth configuration of narrowband terminal is the frequency range that narrowband terminal base band is currently able to carry out valid data transmission.
Specifically, if the information of first frequency resource includes the reference frequency information of first frequency resource, Terminal can determine the reference frequency of first frequency resource according to the reference frequency information of first frequency resource, and according to the reference frequency of first frequency resource, the bandwidth of first frequency resource（The bandwidth of first frequency resource can be included in the information of first frequency resource, can also be stored in advance in terminal）With the relative position of the reference frequency of first frequency resource in first frequency resource, first frequency resource is determined.For example, the a width of 2MHz of band of first frequency resource, reference frequency is 15MHz, and frequency is in the centre position of first frequency resource on the basis of the relative position of the reference frequency of first frequency resource in first frequency resource, it is possible to determine that first frequency resource is 14 ~ 16MHz.
If specifically, the information of first frequency resource includes RB numberings（The RB numberings of such as starting, RB numberings, the centre RB numbering terminated), terminal can obtain the frequency range of current system carrier wave, RB numberings are included according to the information of the frequency range of system carrier and first frequency resource, the corresponding frequency of first frequency resource is determined（Originate frequency, terminate frequency or middle frequency）.
If specifically, the information of first frequency resource includes frequency（Such as originate frequency, terminate frequency, middle frequency）The frequency resource or the carrier frequency of channel width that can be configured according to frequency to the transmission bandwidth of narrowband terminal are configured, the bandwidth of the bandwidth for the first frequency resource that can include during setting by the information using first frequency resource or the first frequency resource made an appointment.
If specifically, the information of first frequency resource includes frequency（Such as originate frequency, terminate frequency, middle frequency）Corresponding ARFCN information, corresponding frequency can be determined according to ARFCN information, then, the frequency resource or the carrier frequency of channel width configured according to frequency to the transmission bandwidth of narrowband terminal is configured, the bandwidth of the bandwidth for the first frequency resource that can include during setting by the information using first frequency resource or the first frequency resource made an appointment.
Step 305, base station carries out data transmission.Wherein, the data that base station is sent can include control information and data message.
Specifically, base station is before the data for carrying out whole transmission bandwidth configuration are sent, when carrying out the resource allocation of terminal, for the narrowband terminal running time-frequency resource can be distributed in above-mentioned first frequency resource, then will be sent to the data distribution of the terminal to corresponding time-frequency location.Base station can indicate the narrowband terminal in the control channel in first frequency resource by configured information, be sent to specific time-frequency location of the data of the narrowband terminal in first frequency resource.
When the information of above-mentioned first frequency resource is the reference frequency information of first frequency resource, then the processing that base station carries out data transmission can be：Base station sends data at least one subcarrier, and this at least one subcarrier includes the corresponding subcarrier of reference frequency.
Step 306, narrowband terminal receives the data that base station is sent according to first frequency resource. Narrowband terminal can determine first frequency resource according to the information of first frequency resource, and receive the data that base station is sent according to first frequency resource.
Specifically, narrowband terminal can be received to the data in the whole first frequency resource distributed for it, the configured information that base station is sent is read, the time-frequency location wherein indicated is obtained, and in the received data, chooses the data on corresponding time-frequency location.
Above-mentioned steps 305 and step 306, optionally, base station can send reference signal, and narrowband terminal can determine first frequency resource according to the information of first frequency resource, and receive the reference signal that base station is sent according to first frequency resource.The reference signal that base station is sent is received i.e. in first frequency resource, and then the processing such as channel estimation, time domain or frequency domain synchronization or channel quality measurement can be carried out.Specifically, base station can send reference signal at least one frequency resource.Narrowband terminal can determine first frequency resource according to the information of first frequency resource, and receive the reference signal that base station is sent at least one frequency resource according to first frequency resource.
Wherein, reference signal can be traditional defined reference signal, for example, cell special reference (Cell specific reference signal, CRS), channel state information reference signals (Channel state information-reference signal, CSI-RS), the reference signal of reduction（Reduced CRS, RCRS) or demodulated reference signal（Demodulation reference signal, DMRS) etc..Wherein, CRS, CSI-RS,
RCRS is the reference signal that the full transmission bandwidth configuration in base station is sent, and base station carries out the transmission of full transmission bandwidth configuration to reference signal, and narrowband terminal can be received in narrow band frequency resource to reference signal.
In addition, reference signal can also be the reference signal newly defined, the reference signal newly defined can be the reference signal that different time-frequency locations is in from traditional defined reference signal.When above-mentioned base station divides at least one frequency resource according to the configuration of its transmission bandwidth, base station can send reference signal at least one frequency resource herein.In this at least one frequency resource, including the above-mentioned first frequency resource distributed for narrowband terminal.
Relative to the reference signal in traditional broadband（The reference signal that the full transmission bandwidth configuration in base station is sent）, the reference signal that sends can be referred to as the reference signal of arrowband in this component frequency resource in the transmission bandwidth configuration of base station.
It is preferred that, different narrowband terminals can be given using each frequency resource in above-mentioned at least one frequency resource marked off as first frequency resource allocation.So, it be not that narrowband terminal is distributed in the frequency resource of first frequency resource, then is not sending the reference signal of this arrowband, the utilization rate of system resource can be improved.
For the reference signal of above-mentioned arrowband, the time-frequency location in subframe can use corresponding conventional reference The time-frequency location of signal, for example, the CRS of arrowband can use time-frequency locations of traditional CRS in subframe, it is of course also possible to use the time-frequency location of the reference signal newly defined.If the reference signal of arrowband and corresponding conventional reference signal（The reference signal in broadband）To be transmitted simultaneously, then can be by the way of code division multiplexing in the transmission of identical time-frequency location.
The sequence of the reference signal of the arrowband used in each frequency range, sequence of traditional reference signal in corresponding frequency range can be multiplexed, for example, the CRS of the arrowband sent on some time-frequency location sequence, can use the traditional CRS sent on the time-frequency location sequence.It is of course also possible to be not multiplexed the sequence of conventional reference signal, but the new reference signal of configuration or be the new sequence of reference signal configuration.For example, for traditional CRS, base station and terminal typically agreement have the corresponding CRS sequences of 110 RB, configured according to the transmission bandwidth of base station, the CRS sequences of several RB in the middle of 110 RB can be taken to be transmitted, such as, the transmission bandwidth of base station is configured to 50 RB, then takes the corresponding CRS sequences of 50 RB in the middle of 110 RB as the CRS sequences sent in the transmission bandwidth configuration of base station.
It is preferred that, base station can use identical reference signal sequence transmission reference signal at least one above-mentioned frequency resource, accordingly, terminal can determine first frequency resource according to the information of above-mentioned first frequency resource, and receive the reference signal that base station is sent at least one frequency resource using identical reference signal sequence according to first frequency resource.
When the number of the above-mentioned frequency resource marked off is multiple, when base station sends reference signal, identical reference signal sequence can be used in each frequency resource.It is preferred that, during the CRS sequences of the arrowband newly defined in configuration, for each frequency resource marked off, can be according to the bandwidth of each frequency resource, the CRS sequences of several RB in the middle of 110 RB are taken to be transmitted, such as, the transmission bandwidth of base station is configured to 50 RB, a width of 6 RB of band of each frequency resource divided, so, the corresponding CRS sequences of 6 RB in the middle of 110 RB can be taken for each frequency resource, it is transmitted respectively in each frequency resource of division, or, it can also be located at the respective frequencies resource location in 50 RB or 110 RB to determine CRS sequences according to each frequency resource.
, can also be to enhancing resource element groups when sending reference signal in the embodiment of the present invention（Enhanced resource element group, EREG) resource element (Resource Element, RE) that uses is configured, and can be using following setting according to real needs：
Base station determines that (EPDCCH is mapped to some EREG and is transmitted EREG）The RE that CRS is used is not included in the RE used.CRS and DMRS can be used as channel estimation, based on above-mentioned EREG setting, and base station can not send DMRS, and terminal can carry out channel estimation based on CRS, to complete channel demodulation.So, the transmission DMRS resources to be taken can be saved, resource profit is improved With rate.
Or, base station determines the RE not used in the RE that EREG is used including the CRS RE used and DMRS.So, CRS and DMRS simultaneous transmissions can be carried out channel estimation based on CRS and DMRS, when channel quality is poor, can improve the precision of channel estimation.
In the embodiment of the present invention, the reference for demodulation signal type that can be used terminal is configured：Channel demodulation is carried out using CRS, or, channel demodulation is carried out using DMRS, or, while carrying out channel demodulation using CRS and DMRS.Can be by signal deployment or the transmission subframe of predefined reference signal, arrowband RS transmission subframe can include the subframe for being used to transmit RCRS, or, arrowband RS transmission subframe can include the subframe for being used to transmit MIB or SIB.
In the embodiment of the present invention, narrowband terminal reference signal information can be notified by way of base station sends message to terminal（Reference signal type, RS indexes etc.）, narrowband terminal is stored reference signal information, then narrowband terminal can carry out follow-up processing according to reference signal information and the reference signal received, detailed process can be with:Under mouthful：
First, the corresponding reference signal information of at least one frequency resource of the information of first frequency resource and above-mentioned division is sent to narrowband terminal by base station.Accordingly, narrowband terminal receives the information and the corresponding reference signal information of at least one above-mentioned frequency resource for the first frequency resource that base station is sent.For example, base station can notify the corresponding reference signal information of at least one frequency resource of the narrowband terminal by synchronizing channel or broadcast channel, corresponding terminal can obtain this reference signal information in synchronizing channel or broadcast channel.
It is preferred that, this can be carried out in narrowband terminal access base station and sends operation, or this transmission operation can be carried out by the target BS switched during progress base station switching in the scene of coordinate multipoint communication (Coordinated Multipoint Transmission, CoMP).
Specifically, base station can send reference signal information by way of being sent to narrowband terminal and indicating message.The RS information that carries can include RS indexes in message is indicated, narrowband terminal is stored with the corresponding default RS of different RS indexes, and default RS accordingly can be determined by RS indexes.RS information can also include RS types（Can be a type or polytype combination）, the mark of narrow band frequency resource, carrier identification, RS antenna ports number, RS scramblings mark, the several information in the information such as RS frequency offsets.The instruction message can be RRC information or DCI message etc..
Then, base station sends reference signal.Accordingly, narrowband terminal carries out channel estimation, time-domain and frequency-domain synchronization or channel quality measurement according to the reference signal received, and above-mentioned reference signal information.
In the embodiment of the present invention, base station is terminal distribution frequency resource in the configuration of its transmission bandwidth, and the information of the frequency resource is sent into the terminal, terminal is received the number that base station is sent according to the frequency resource According to.So, the data transfer of base station and terminal can be carried out in the frequency resource of intermediate frequency resource location for being not limited to the configuration of its transmission bandwidth, it is thus possible to improve the resource utilization of wireless communication system.Embodiment three
Based on identical technical concept, the embodiment of the present invention additionally provides a kind of base station, as shown in figure 4, the base station includes：
Distribute module 410, the transmission bandwidth for being less than or equal to the terminal for the bandwidth for terminal distribution first frequency resource, the first frequency resource is configured, and the transmission bandwidth configuration of the terminal is configured less than the transmission bandwidth of the base station；
Sending module 420, for the information of the first frequency resource to be sent into the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the data that the base station is sent are received according to the first frequency resource.
It is preferred that, the sending module 420 is used for：
The reference frequency information of the first frequency resource is sent to the terminal, to cause the terminal to determine the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
It is preferred that, the sending module 420 is used for：
The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource is sent to the terminal.
It is preferred that, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
It is preferred that, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
It is preferred that, the sending module 420 is used for：
The information of the first frequency resource is sent to by the terminal by physical downlink control channel PDCCH;Or,
The terminal is sent to by strengthening Physical Downlink Control Channel EPDCCH by the information of the first frequency resource；Or, The information of the first frequency resource is sent to by the terminal by broadcast channel；Or, the information of the first frequency resource is sent to by the terminal by Physical Downlink Shared Channel PDSCH.
It is preferred that, the distribute module 410 is used for：
At least one frequency resource is divided according to the configuration of the transmission bandwidth of the base station, the bandwidth of at least one frequency resource is less than or equal to the transmission bandwidth configuration of the terminal；
Determine first frequency resource allocation to the terminal from least one described frequency resource.
It is preferred that, the sending module 420 is used for：
The information of the first frequency resource is sent to the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource.
It is preferred that, the sending module 420 is used for：
The information of the first frequency resource is sent to the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource using identical reference signal sequence is received according to the first frequency resource.
It is preferred that, the sending module 420 is used for：
The information of the first frequency resource and the corresponding reference signal information of at least one described frequency resource are sent to the terminal.
It is preferred that, the sending module 420 is additionally operable to：
It is determined that not including the RE that cell special reference CRS is used in the resource element RE that enhancing resource element groups EREG is used.
It is preferred that, the sending module 420 is additionally operable to：
Data are sent at least one subcarrier, the subcarrier includes the corresponding sub- load of the reference frequency
Based on identical technical concept, the embodiment of the present invention additionally provides a kind of terminal, as shown in figure 5, the terminal includes：
Information receiving module 510, the information of the first frequency resource for receiving base station transmission；
Determining module 520, for determining the first frequency resource according to the information of the first frequency resource；Data reception module 530, for receiving the data that the base station is sent according to the first frequency resource.It is preferred that, the information of the first frequency resource includes：The reference frequency letter of the first frequency resource Breath；
The determining module 520, is used for：
The reference frequency of the first frequency resource is determined according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
It is preferred that, the information of the first frequency resource includes：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource；
The determining module 520, is used for：
The reference frequency of the first frequency resource is determined according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
It is preferred that, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
It is preferred that, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
It is preferred that, described information receiving module 510 is used for：
The information for the first frequency resource that base station is sent is received by physical downlink control channel PDCCH；Or,
The information for the first frequency resource that base station is sent is received by strengthening Physical Downlink Control Channel EPDCCH；Or,
The information for the first frequency resource that base station is sent is received by broadcast channel；Or,
The information for the first frequency resource that base station is sent is received by Physical Downlink Shared Channel PDSCH.It is preferred that, the data reception module 530 is used for：
The reference signal that the base station is sent is received according to the first frequency resource.
It is preferred that, described information receiving module 510 is used for：
The information reference signal information corresponding with least one frequency resource for the first frequency resource that base station is sent is received, at least one described frequency resource is that the base station configures division according to the transmission bandwidth of the base station , the bandwidth of at least one frequency resource is less than or equal to the terminal transmission band width configuration.It is preferred that, the data reception module 530 is additionally operable to：
According to the reference signal received, and the reference signal information, channel estimation, time domain or frequency domain synchronization or channel quality measurement are carried out.
In the embodiment of the present invention, base station is terminal distribution frequency resource in the configuration of its transmission bandwidth, and the information of the frequency resource is sent into the terminal, terminal is received the data that base station is sent according to the frequency resource.So, the data transfer of base station and terminal can be carried out in the frequency resource of intermediate frequency resource location for being not limited to the configuration of its transmission bandwidth, it is thus possible to improve the resource utilization of wireless communication system.Example IV
Based on identical technical concept, the embodiment of the present invention additionally provides a kind of system of data transfer, and the system includes the base station and terminal as described in above-mentioned embodiment.
In the embodiment of the present invention, base station is terminal distribution frequency resource in the configuration of its transmission bandwidth, and the information of the frequency resource is sent into the terminal, terminal is received the data that base station is sent according to the frequency resource.So, the data transfer of base station and terminal can be carried out in the frequency resource of intermediate frequency resource location for being not limited to the configuration of its transmission bandwidth, it is thus possible to improve the resource utilization of wireless communication system.Embodiment five
The embodiments of the invention provide a kind of base station.The base station can include emitter, receiver, memory and the processor being connected respectively with emitter, receiver and memory.In addition, the base station can also include the universal components such as antenna, baseband process component, middle radio frequency processing part, input/output unit, the embodiment of the present invention does not do any limitation herein.
Wherein, batch processing code is stored in memory, and processor is used to call the program code stored in memory, for performing any method in above method embodiment, for example, performing following operate：Base station is terminal distribution first frequency resource, and the bandwidth of the first frequency resource is less than or equal to the transmission bandwidth configuration of the terminal, and the transmission bandwidth configuration of the terminal is configured less than the transmission bandwidth of the base station；
The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and receives the data that the base station is sent according to the first frequency resource.
It is preferred that, the information of the first frequency resource is sent to the terminal by the base station, so that described Terminal determines the first frequency resource according to the information of the first frequency resource, including：The reference frequency information of the first frequency resource is sent to the terminal by the base station, to cause the terminal to determine the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
It is preferred that, the information of the first frequency resource is sent to the terminal by the base station, including：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource is sent to the terminal by the base station.
It is preferred that, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
It is preferred that, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
It is preferred that, the information of the first frequency resource is sent to the terminal by the base station, is specially：The information of the first frequency resource is sent to the terminal by the base station by physical downlink control channel PDCCH；Or,
The base station is sent to the terminal by strengthening Physical Downlink Control Channel EPDCCH by the information of the first frequency resource；Or,
The information of the first frequency resource is sent to the terminal by the base station by broadcast channel；Or,
The information of the first frequency resource is sent to the terminal by the base station by Physical Downlink Shared Channel PDSCH.
It is preferred that, base station is terminal distribution first frequency resource, including：
The base station divides at least one frequency resource according to the configuration of the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the transmission bandwidth configuration of the terminal；
Determine first frequency resource allocation to the terminal from least one described frequency resource in the base station.
It is preferred that, the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and according to the described first frequency Rate resource receives the data that the base station is sent, including：
The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource.
It is preferred that, the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource, including：The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource using identical reference signal sequence is received according to the first frequency resource.
It is preferred that, the information of the first frequency resource is sent to the terminal by the base station, including：The information of the first frequency resource and the corresponding reference signal information of at least one described frequency resource are sent to the terminal by the base station.
It is preferred that, methods described also includes：
The base station determines not including the RE that cell special reference CRS is used in the resource element RE that enhancing resource element groups EREG is used.
It is preferred that, the information of the first frequency resource is sent to after the terminal by the base station, in addition to：
The base station sends data at least one subcarrier, and the subcarrier includes the corresponding subcarrier of the reference frequency.The embodiments of the invention provide a kind of terminal.The terminal can include emitter, receiver, memory and the processor being connected respectively with emitter, receiver and memory.In addition, the terminal can also include the universal components such as antenna, baseband process component, middle radio frequency processing part, input/output unit, the embodiment of the present invention does not do any limitation herein.
Wherein, batch processing code is stored in memory, and processor is used to call the program code stored in memory, for performing any method in above method embodiment, for example, performing following operate：Terminal receives the information for the first frequency resource that base station is sent；
The terminal determines the first frequency resource according to the information of the first frequency resource；The terminal receives the data that the base station is sent according to the first frequency resource. It is preferred that, the information of the first frequency resource includes：The reference frequency information of the first frequency resource；
The terminal determines the first frequency resource according to the information of the first frequency resource, including：The terminal determines the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
It is preferred that, the information of the first frequency resource includes：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource；
The terminal determines the first frequency resource according to the information of the first frequency resource, including：The terminal determines the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
It is preferred that, the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
It is preferred that, the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
It is preferred that, the terminal receives the information for the first frequency resource that base station is sent, and is specially：The terminal receives the information for the first frequency resource that base station is sent by physical downlink control channel PDCCH；Or,
The terminal receives the information for the first frequency resource that base station is sent by strengthening Physical Downlink Control Channel EPDCCH；Or,
The terminal receives the information for the first frequency resource that base station is sent by broadcast channel；Or, the terminal receives the information for the first frequency resource that base station is sent by Physical Downlink Shared Channel PDSCH.
It is preferred that, the terminal receives the data that the base station is sent according to the first frequency resource, including：The terminal receives the reference signal that the base station is sent according to the first frequency resource.
It is preferred that, the terminal receives the information for the first frequency resource that base station is sent, including： The terminal receives the information reference signal information corresponding with least one frequency resource for the first frequency resource that base station is sent, at least one described frequency resource is that the base station configures what is divided according to the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the terminal transmission band width configuration.
It is preferred that, methods described also includes：
The terminal carries out channel estimation, time domain or frequency domain synchronization or channel quality measurement according to the reference signal received, and the reference signal information.
In the embodiment of the present invention, base station is terminal distribution frequency resource in the configuration of its transmission bandwidth, and the information of the frequency resource is sent into the terminal, terminal is received the data that base station is sent according to the frequency resource.So, the data transfer of base station and terminal can be carried out in the frequency resource of intermediate frequency resource location for being not limited to the configuration of its transmission bandwidth, it is thus possible to improve the resource utilization of wireless communication system.One of ordinary skill in the art will appreciate that realizing all or part of step of above-described embodiment can be completed by hardware, the hardware of correlation can also be instructed to complete by program, described program can be stored in a kind of computer-readable recording medium, storage medium mentioned above can be read-only storage, disk or CD etc..Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.

Claims (1)

  1. Claims
    1st, a kind of method of data transfer, it is characterised in that methods described includes：
    Base station is terminal distribution first frequency resource, and the bandwidth of the first frequency resource is less than or equal to the transmission bandwidth configuration of the terminal, and the transmission bandwidth configuration of the terminal is configured less than the transmission bandwidth of the base station；
    The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and receives the data that the base station is sent according to the first frequency resource.
    2nd, according to the method described in claim 1, it is characterised in that the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, including：
    The reference frequency information of the first frequency resource is sent to the terminal by the base station, to cause the terminal to determine the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
    3rd, according to the method described in claim 1, it is characterised in that the information of the first frequency resource is sent to the terminal by the base station, including：
    The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource is sent to the terminal by the base station.
    4th, the method according to claim 2 or 3, it is characterised in that the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
    5th, the method according to any one of claim 2 to 4, it is characterised in that the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
    6th, the method according to any one of claim 1 to 5, it is characterised in that the information of the first frequency resource is sent to the terminal by the base station, be specially：
    The information of the first frequency resource is sent to the terminal by the base station by physical downlink control channel PDCCH；Or, The base station is sent to the terminal by strengthening Physical Downlink Control Channel EPDCCH by the information of the first frequency resource；Or,
    The information of the first frequency resource is sent to the terminal by the base station by broadcast channel；Or, the information of the first frequency resource is sent to the terminal by the base station by Physical Downlink Shared Channel PDSCH.
    7th, the method according to any one of claim 1 to 6, it is characterised in that base station is terminal distribution first frequency resource, including：
    The base station divides at least one frequency resource according to the configuration of the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the transmission bandwidth configuration of the terminal；
    Determine first frequency resource allocation to the terminal from least one described frequency resource in the base station.
    8th, method according to claim 7, it is characterized in that, the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the data that the base station is sent are received according to the first frequency resource, including：The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource.
    9th, method according to claim 8, it is characterized in that, the information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource, including：
    The information of the first frequency resource is sent to the terminal by the base station, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource using identical reference signal sequence is received according to the first frequency resource.
    10th, the method according to claim 8 or 9, it is characterised in that the information of the first frequency resource is sent to the terminal by the base station, including：
    The information of the first frequency resource and the corresponding reference signal information of at least one described frequency resource are sent to the terminal by the base station.
    11st, the method according to any one of claim 8 to 10, it is characterised in that methods described also includes： The base station determines not including the RE that cell special reference CRS is used in the resource element RE that enhancing resource element groups EREG is used.
    12nd, the method according to any one of claim 2 to 11, it is characterised in that the information of the first frequency resource is sent to after the terminal by the base station, in addition to：
    The base station sends data at least one subcarrier, and the subcarrier includes the corresponding subcarrier of the reference frequency.
    13rd, a kind of method of data transfer, it is characterised in that methods described includes：
    Terminal receives the information for the first frequency resource that base station is sent；
    The terminal determines the first frequency resource according to the information of the first frequency resource；
    The terminal receives the data that the base station is sent according to the first frequency resource.
    14th, method according to claim 13, it is characterised in that the information of the first frequency resource includes：The reference frequency information of the first frequency resource；
    The terminal determines the first frequency resource according to the information of the first frequency resource, including：The terminal determines the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
    15th, method according to claim 13, it is characterised in that the information of the first frequency resource includes：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource；
    The terminal determines the first frequency resource according to the information of the first frequency resource, including：The terminal determines the reference frequency of the first frequency resource according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
    16th, the method according to claim 14 or 15, it is characterised in that the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
    17th, the method according to any one of claim 14 to 16, it is characterised in that the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather. 18th, the method according to any one of claim 13 to 17, it is characterised in that the terminal receives the information for the first frequency resource that base station is sent, be specially：
    The terminal receives the information for the first frequency resource that base station is sent by physical downlink control channel PDCCH；Or,
    The terminal receives the information for the first frequency resource that base station is sent by strengthening Physical Downlink Control Channel EPDCCH；Or,
    The terminal receives the information for the first frequency resource that base station is sent by broadcast channel；Or, the terminal receives the information for the first frequency resource that base station is sent by Physical Downlink Shared Channel PDSCH.
    19th, the method according to any one of claim 13 to 18, it is characterised in that the terminal receives the data that the base station is sent according to the first frequency resource, including：
    The terminal receives the reference signal that the base station is sent according to the first frequency resource.
    20th, method according to claim 19, it is characterised in that the terminal receives the information for the first frequency resource that base station is sent, including：
    The terminal receives the information reference signal information corresponding with least one frequency resource for the first frequency resource that base station is sent, at least one described frequency resource is that the base station configures what is divided according to the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the terminal transmission band width configuration.
    21st, the method according to claim 19 or 20, it is characterised in that methods described also includes：The terminal carries out channel estimation, time domain or frequency domain synchronization or channel quality measurement according to the reference signal received, and the reference signal information.
    22nd, a kind of base station, it is characterised in that the base station includes：
    Distribute module, the transmission bandwidth for being less than or equal to the terminal for the bandwidth for terminal distribution first frequency resource, the first frequency resource is configured, and the transmission bandwidth configuration of the terminal is configured less than the transmission bandwidth of the base station；
    Sending module, for the information of the first frequency resource to be sent into the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the data that the base station is sent are received according to the first frequency resource.
    23rd, base station according to claim 22, it is characterised in that the sending module, is used for：The reference frequency information of the first frequency resource is sent to the terminal, to cause the terminal to determine the reference frequency of the first frequency resource, and root according to the reference frequency information of the first frequency resource According to the reference frequency of the first frequency resource, the relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource determines the first frequency resource.
    24th, base station according to claim 22, it is characterised in that the sending module, is used for：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource is sent to the terminal.
    25th, the base station according to claim 23 or 24, it is characterised in that the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
    26th, the base station according to any one of claim 23 to 25, it is characterised in that the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
    27th, the base station according to any one of claim 22 to 26, it is characterised in that the sending module, is used for：
    The information of the first frequency resource is sent to by the terminal by physical downlink control channel PDCCH；Or,
    The terminal is sent to by strengthening Physical Downlink Control Channel EPDCCH by the information of the first frequency resource；Or,
    The information of the first frequency resource is sent to by the terminal by broadcast channel；Or, the information of the first frequency resource is sent to by the terminal by Physical Downlink Shared Channel PDSCH.
    28th, the base station according to any one of claim 22 to 27, it is characterised in that the distribute module, is used for：
    At least one frequency resource is divided according to the configuration of the transmission bandwidth of the base station, the bandwidth of at least one frequency resource is less than or equal to the transmission bandwidth configuration of the terminal；
    Determine first frequency resource allocation to the terminal from least one described frequency resource.
    29th, base station according to claim 28, it is characterised in that the sending module, is used for：The information of the first frequency resource is sent to the terminal, so that the terminal determines the first frequency resource according to the information of the first frequency resource, and the reference signal that the base station is sent at least one described frequency resource is received according to the first frequency resource.
    30th, base station according to claim 29, it is characterised in that the sending module, is used for：The information of the first frequency resource is sent to the terminal, so that the terminal is according to described first The information of frequency resource determines the first frequency resource, and receives the reference signal that the base station is sent at least one described frequency resource using identical reference signal sequence according to the first frequency resource.
    31st, the base station according to claim 29 or 30, it is characterised in that the sending module, is used for：
    The information of the first frequency resource and the corresponding reference signal information of at least one described frequency resource are sent to the terminal.
    32nd, the base station according to any one of claim 29 to 31, it is characterised in that the sending module, is additionally operable to：
    It is determined that not including the RE that cell special reference CRS is used in the resource element RE that enhancing resource element groups EREG is used.
    33rd, the base station according to any one of claim 23 to 32, it is characterised in that the sending module, is additionally operable to：
    Data are sent at least one subcarrier, the subcarrier includes the corresponding subcarrier of the reference frequency.
    34th, a kind of terminal, it is characterised in that the terminal includes：
    Information receiving module, the information of the first frequency resource for receiving base station transmission；
    Determining module, for determining the first frequency resource according to the information of the first frequency resource；Data reception module, for receiving the data that the base station is sent according to the first frequency resource.
    35th, terminal according to claim 34, it is characterised in that the information of the first frequency resource includes：The reference frequency information of the first frequency resource；
    The determining module, is used for：
    The reference frequency of the first frequency resource is determined according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, relative position of the reference frequency of the bandwidth of the first frequency resource and the first frequency resource in the first frequency resource, determines the first frequency resource.
    36th, terminal according to claim 34, it is characterised in that the information of the first frequency resource includes：The bandwidth of the reference frequency information of the first frequency resource and the first frequency resource；
    The determining module, is used for：
    The reference frequency of the first frequency resource is determined according to the reference frequency information of the first frequency resource, and according to the reference frequency of the first frequency resource, the bandwidth of the first frequency resource and described Relative position of the reference frequency of one frequency resource in the first frequency resource, determines the first frequency resource.
    37th, the terminal according to claim 35 or 36, it is characterised in that the reference frequency of the first frequency resource includes：Initial frequency, either intermediate frequency or terminate frequency.
    38th, the terminal according to any one of claim 35 to 37, it is characterised in that the reference frequency information, including：The ARFCN of the reference frequency;Or, the numbering of the ARFCN of the reference frequency in the affiliated frequency band packets of ARFCN of the reference frequency, wherein, the affiliated frequency band packets of ARFCN are to divide the obtained ARFCN with same frequency band according to the affiliated frequency bands of ARFCN to gather.
    39th, the terminal according to any one of claim 34 to 38, it is characterised in that described information receiving module, is used for：
    The information for the first frequency resource that base station is sent is received by physical downlink control channel PDCCH；Or,
    The information for the first frequency resource that base station is sent is received by strengthening Physical Downlink Control Channel EPDCCH；Or,
    The information for the first frequency resource that base station is sent is received by broadcast channel；Or,
    The information for the first frequency resource that base station is sent is received by Physical Downlink Shared Channel PDSCH.
    40th, the terminal according to any one of claim 34 to 39, it is characterised in that the data reception module, is used for：
    The reference signal that the base station is sent is received according to the first frequency resource.
    41st, terminal according to claim 40, it is characterised in that described information receiving module, is used for：Receive the information reference signal information corresponding with least one frequency resource for the first frequency resource that base station is sent, at least one described frequency resource is that the base station configures what is divided according to the transmission bandwidth of the base station, and the bandwidth of at least one frequency resource is less than or equal to the terminal transmission band width configuration.
    42nd, the terminal according to claim 40 or 41, it is characterised in that the data reception module, is additionally operable to：
    According to the reference signal received, and the reference signal information, channel estimation, time domain or frequency domain synchronization or channel quality measurement are carried out.
    43rd, a kind of system of data transfer, it is characterised in that the system includes the base station as described in any one of claim 22 to 33 and the terminal as described in any one of claim 34 to 42.
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