WO2015184912A1 - 一种信道和信号传输方法及相应的终端、基站 - Google Patents
一种信道和信号传输方法及相应的终端、基站 Download PDFInfo
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- the present invention relates to the technical field of uplink physical channel and uplink signal transmission, and in particular, to a method for uplink physical channel and uplink signal transmission, and a corresponding terminal and base station.
- Machine Type Communication (MTC) User Equipment (UE), also known as Machine to Machine (M2M) user communication equipment, is the main application form of the Internet of Things at this stage. Low power consumption and low cost are important guarantees for large-scale applications. Smart Metering devices are one of the most typical applications for MTC devices.
- the M2M devices currently deployed on the market are mainly based on the Global System of Mobile communication (GSM) system.
- GSM Global System of Mobile communication
- LTE Long Term Evolution
- M2M multi-class data based on LTE The business will also be more attractive.
- LTE-based M2M devices only the cost of LTE-based M2M devices is lower than that of GSM-based M2M devices, and M2M services can be truly transferred from GSM to LTE systems, so how to completely reduce the cost of LTE-M2M devices becomes companies and research institutions. The primary issue to consider.
- the cost of the MTC UE mainly comes from two parts: the baseband processing part and the radio frequency part, and reducing the uplink and/or downlink transmission bandwidth of the UE (including baseband and radio frequency bandwidth) is a very effective way to reduce the cost of the MTC UE, for example, in When the system bandwidth is 20 MHz, the uplink and/or downlink transmission bandwidth of the MTC UE is set to a narrowband bandwidth of only 1.4 MHz. Considering that compared with the reduction of the uplink transmission bandwidth, the reduction of the downlink transmission bandwidth can provide more cost savings. Therefore, companies and research institutions are currently focusing on the downlink physical channels and signals in the case where the downlink transmission bandwidth of the MTC UE is reduced. the design of. However, in the case that the uplink transmission bandwidth of the MTC UE is reduced, there is no good solution for how to ensure normal transmission of various uplink physical channels and uplink signals.
- a channel and signal transmission method is provided for a machine type communication MTC terminal, including:
- the uplink physical channel and the uplink signal include: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a sounding reference signal SRS.
- a resource area that is used to send an uplink physical channel and an uplink signal including:
- Predefining or acquiring, according to the received signaling, a resource region that can be used to transmit a PUSCH is an N PUSCH PUSCH subband determined in a system bandwidth;
- Predefined or based on the received signaling and acquires the PUCCH resource region may be used to transmit the system bandwidth is determined in one PUCCH PUCCH N subbands;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include at least one or more consecutive physical resource block PRB resources; the PRB resources included in different subbands of the same subband do not overlap; N PUSCH , N PUCCH or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands are the same as the resources occupied by the subbands included in the resource region available for receiving the downlink physical channel.
- the received signaling is system information block SIB signaling.
- the N PUSCH PUSCH subbands are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -N PUSCH ⁇ M PUSCH ,
- the N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUSCH indicates one The number of PRB resources included in the PUSCH subband
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the number N SRS SRS subband the number N PUSCH PUSCH N subbands may be used for all subbands SRS SRS SRS number subbands conventional SRS transmission and a size of four in PRB resources.
- the N PUSCH PUSCH sub-bands are divided into two or more sub-band groups, wherein the sub-bands included in each sub-band group are physically continuous, and each of the two or more sub-band groups One subband group includes at least one of the N SRS SRS subbands.
- the method further includes: predefining or determining, according to the received UE-specific signaling, one SRS sub-band from the N SRS SRS sub-bands to send a current SRS signal, where the UE-specific signaling includes: dynamic downlink Control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the N PUCCH is equal to 1 or 2.
- the N PUCCH is greater than 1,
- the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- the N PUCCH is equal to 1,
- the index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband.
- the N PUCCH is equal to 2, two PUCCH PRB resources of the sub-bands are included in the PUSCH a PUSCH N subbands occupies the highest frequency of M resources and PUCCH PRB-M occupies the lowest frequency resource PUCCH PRB pairs, wherein M PUCCH indicates the number of PRB resources included in one PUCCH subband.
- the N PUCCH PUCCH subbands do not overlap with the physical random access channel PRACH subband.
- the UE receives the dedicated signaling, and / or an enhanced control channel element ECCE resources, access to a resource of the PUCCH all N subbands PUCCH PUCCH number included in the PUCCH to transmit data, wherein said
- the UE-specific signaling includes dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the PUCCH resources of different PUCCH sub-bands are uniformly numbered or independently numbered; the PUCCH resources include PUCCH format 1/1a resources and PUCCH format 2/2a resources.
- PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH sub-bands are uniformly numbered;
- the PUCCH format 1/1a resource and/or the PUCCH format 2/2a resource of different PUCCH subbands are numbered alternately.
- the PUCCH format 2/2a resources of different PUCCH subbands are independently numbered;
- the index of the PUCCH subband in which the PUCCH format 2/2a resource in which the PUCCH format 2 or the format 2a data is transmitted and the PUCCH format 2/2a resource in the subband are acquired by semi-static RRC signaling. index.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1 data is transmitted and the index of the PUCCH format 1/1a resource in the subband are acquired by semi-static RRC signaling.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the index of the PUCCH subband in which the PUCCH format 1a data of the PUCCH format 1a data is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly obtained.
- All the ECCE resources included in the enhanced physical downlink control channel EPDCCH control region are divided into N PUCCH ECCE resource groups, and the N PUCCH ECCE resource groups are respectively associated with the N PUCCH PUCCH subbands;
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted is indirectly obtained according to the ECCE resource, and includes:
- an index of the PUCCH format 1/1a resource that transmits the PUCCH format 1a data is indirectly obtained.
- At least one OFDM symbol preceding the Orthogonal Frequency Division Multiplexing OFDM symbol used to transmit the SRS is no longer used to transmit any PUSCH or PUCCH.
- the present invention further provides a channel and signal transmission method, which is used for a base station capable of performing machine type communication MTC, including:
- the uplink physical channel and the uplink signal include: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a sounding reference signal SRS.
- the predefined or signaling indicates a resource area that can be used to send an uplink physical channel and an uplink signal, including:
- Predefining or signaling indicating that the resource region available for transmitting the PUSCH is the N PUSCH PUSCH subband determined in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the PUCCH is the determined N PUCCH PUCCH subband in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the SRS is the determined N SRS SRS subband in the system bandwidth;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include one or a plurality of physical resource block PRB resources; the PRB resources included in different subbands of the same subband do not overlap; N PUSCH and N PUCCH Or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands are the same as the resources occupied by the subbands included in the resource region available for transmitting the downlink physical channel.
- the signaling is system information block SIB signaling.
- the N PUSCH PUSCH subbands are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -N PUSCH ⁇ M PUSCH ,
- the N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUSCH indicates one The number of PRB resources included in the PUSCH subband
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the number N SRS SRS subband number of the PUSCH PUSCH N subbands may be used for SRS transmission and a conventional size for all SRS subbands 4 PRB resources in an SRS SRS N subbands, wherein the UE specifically
- the signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the N PUSCH PUSCH sub-bands are divided into two or more sub-band groups, wherein the sub-bands included in each sub-band group are physically continuous, and each of the two or more sub-band groups One subband group includes at least one of the N SRS SRS subbands.
- the method further includes: pre-defining or indicating, by using UE-specific signaling, one SRS sub-band of the N SRS SRS sub-bands to send a current SRS signal.
- the N PUCCH is equal to 1 or 2.
- the N PUCCH is greater than 1;
- the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- the N PUCCH is equal to 1,
- the index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband.
- the N PUCCH is equal to 2;
- the two sub-bands PUCCH PRB resources comprise respectively the number PUSCH PUSCH N occupies the highest frequency sub-band of PUCCH PRB-M occupies the lowest frequency resource and a PUCCH PRB resources M, wherein, M represents a PUCCH sub PUCCH The number of PRB resources included.
- the N PUCCH PUCCH subbands do not overlap with the physical random access channel PRACH subband.
- the signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the PUCCH resources of different subbands are uniformly numbered or independently numbered;
- the PUCCH resources include a PUCCH format 1/1a resource and a PUCCH format 2/2a resource.
- PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH sub-bands are uniformly numbered;
- the PUCCH format 1/1a resource and/or the PUCCH format 2/2a resource of different PUCCH subbands are numbered alternately.
- the PUCCH format 2/2a resources of different PUCCH subbands are independently numbered;
- the index of the PUCCH subband in which the PUCCH format 2/2a resource in which the PUCCH format 2 or the format 2a data is transmitted and the PUCCH format 2/2a resource in the subband are indicated by semi-static RRC signaling. index.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1 data is transmitted and the PUCCH format 1/1a resource in the subband are indicated by semi-static RRC signaling.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered.
- Index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted and the PUCCH format 1/1a resource in the subband are indicated by semi-static RRC or dynamic DCI signaling; or
- An index indicating a PUCCH subband in which a PUCCH format 1/1a resource of a PUCCH format 1a data is transmitted is indicated by semi-static RRC signaling, and a PUCCH format 1/1a resource indicating transmission of PUCCH format 1a data by dynamic DCI signaling The index of the PUCCH format 1/1a resource in the subband; or
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted is indicated by the semi-static RRC or the dynamic DCI signaling, and the PUCCH format of the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- the index of the PUCCH subband in which the PUCCH format 1/1a resource related to the PUCCH format 1a is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly indicated.
- All the ECCE resources included in the enhanced physical downlink control channel EPDCCH control region are divided into N PUCCH ECCE resource groups, and the N PUCCH ECCE resource groups are respectively associated with the N PUCCH PUCCH subbands;
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted is indirectly obtained according to the ECCE resource, and includes:
- the index of the PUCCH format 1/1a resource that transmits the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- At least one OFDM symbol preceding the Orthogonal Frequency Division Multiplexing OFDM symbol used to receive the SRS is no longer used to receive any PUSCH or PUCCH.
- the present invention further provides a machine type communication MTC terminal, including:
- the first acquiring unit is configured to: pre-define or acquire, according to the received signaling, a resource area that can be used to send an uplink physical channel and an uplink signal;
- a sending unit configured to: send the uplink physical channel and an uplink signal in the resource area;
- the uplink physical channel and the uplink signal include: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a sounding reference signal SRS.
- a resource area that is used to send an uplink physical channel and an uplink signal according to the received signaling including:
- Predefining or acquiring, according to the received signaling, a resource region that can be used to transmit a PUSCH is an N PUSCH PUSCH subband determined in a system bandwidth;
- Predefined or based on the received signaling and acquires the PUCCH resource region may be used to transmit the system bandwidth is determined in one PUCCH PUCCH N subbands;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include at least one or more consecutive physical resource block PRB resources; the PRB resources included in different subbands of the same subband do not overlap; N PUSCH , N PUCCH or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands acquired by the first acquiring unit are the same as the resources occupied by the subbands included in the resource region that can be used to receive the downlink physical channel.
- the signaling received by the first acquiring unit is system information block SIB signaling.
- the N PUSCH PUSCH subbands obtained by the first acquiring unit are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -N PUSCH ⁇ M PUSCH ,
- the N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUSCH indicates one The number of PRB resources included in the PUSCH subband
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the first acquisition unit acquires the number N SRS SRS subband number of the PUSCH PUSCH N subbands may be used for SRS transmission and a size of a conventional four SRS number N PRB resources of all sub SRS SRS subbands band.
- the N PUSCH PUSCH subbands acquired by the first acquiring unit are divided into two or more subband groups, wherein the subbands included in each subband group are physically continuous, the two or two Each of the plurality of subband groups includes at least one of the N SRS SRS subbands.
- a second acquiring unit configured to: pre-define or determine one SRS sub-band from the N SRS SRS sub-bands to send a current SRS signal according to the received UE-specific signaling, where the UE is proprietary
- the signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the N PUCCH acquired by the first acquiring unit is equal to 1 or 2.
- the N PUCCH acquired by the first acquiring unit is greater than 1, and the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- the N PUCCH acquired by the first acquiring unit is equal to 1, and the index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband.
- the N PUCCH obtained by the first acquiring unit is equal to 2, and the PRB resources included in the two PUCCH sub-bands are respectively M PUCCH PRB resources occupying the highest frequency and occupying the lowest frequency in the N PUSCH PUSCH sub-bands.
- the N PUCCH PUCCH subbands acquired by the first acquiring unit do not overlap with the physical random access channel PRACH subbands.
- a third obtaining unit configured to: acquire one of all PUCCH resources included in the N PUCCH PUCCH subband according to the received UE-specific signaling and/or the enhanced control channel unit ECCE resource, to transmit the PUCCH Data, wherein the UE-specific signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the PUCCH resources of different PUCCH sub-bands are uniformly numbered or independently numbered, where the PUCCH resources include a PUCCH format 1/1a resource and a PUCCH format 2/2a resource.
- PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are uniformly numbered; and PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are numbered alternately .
- the PUCCH format 2/2a resources of different PUCCH subbands are independently numbered;
- the third acquiring unit acquires, by using semi-static RRC signaling, the index of the PUCCH subband in which the PUCCH format 2/2a resource of the PUCCH format 2 or the format 2a data is located, and the PUCCH in the subband, for the PUCCH format 2 or the format 2a.
- the index of the format 2/2a resource is not limited to, but not limited to, but not limited to, but not limited to, but not limited to the index of the PUCCH subband in which the PUCCH format 2/2a resource of the PUCCH format 2 or the format 2a data is located, and the PUCCH in the subband, for the PUCCH format 2 or the format 2a.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third acquiring unit acquires an index of a PUCCH subband in which a PUCCH format 1/1a resource is transmitted and a PUCCH format 1/1a resource in a subband by semi-static RRC signaling. index.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third obtaining unit is for PUCCH format 1a:
- the index of the PUCCH subband in which the PUCCH format 1a data of the PUCCH format 1a data is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly obtained.
- All the ECCE resources included in the enhanced physical downlink control channel EPDCCH control region are divided into N PUCCH ECCE resource groups, and the N PUCCH ECCE resource groups are respectively associated with the N PUCCH PUCCH subbands;
- the third obtaining unit indirectly obtains an index of a PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted according to the ECCE resource, and includes:
- the third obtaining unit is for PUCCH format 1a:
- an index of the PUCCH format 1/1a resource that transmits the PUCCH format 1a data is indirectly obtained.
- the transmitting unit is on a subframe in which the PUSCH and the SRS or the PUCCH and the SRS need to be simultaneously transmitted:
- At least one OFDM symbol preceding the Orthogonal Frequency Division Multiplexing OFDM symbol used to transmit the SRS is no longer used to transmit any PUSCH or PUCCH.
- the present invention further provides a base station capable of performing machine type communication MTC, including:
- a first indication unit configured to: pre-define or indicate, by signaling, a resource area that can be used to send an uplink physical channel and an uplink signal;
- the receiving unit is configured to: receive, in the resource area, an uplink physical channel and an uplink signal sent by the MTC terminal;
- the uplink physical channel and the uplink signal include: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a sounding reference signal SRS.
- the first indication unit pre-defines or indicates, by using signaling, a resource area that can be used to send an uplink physical channel and an uplink signal, including:
- Predefining or signaling indicating that the resource region available for transmitting the PUSCH is the N PUSCH PUSCH subband determined in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the PUCCH is the determined N PUCCH PUCCH subband in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the SRS is a determined N SRS SRS subband in the system bandwidth;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include one or a plurality of physical resource block PRB resources; the PRB resources included in different subbands of the same subband do not overlap; N PUSCH and N PUCCH Or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands indicated by the first indication unit are the same as the resources occupied by the subbands included in the resource region that can be used to transmit the downlink physical channel.
- the first indication unit indicates, by using a system information block SIB signaling, a resource region that can be used to send an uplink physical channel and an uplink signal.
- the N PUSCH PUSCH subbands indicated by the first indication unit are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -N PUSCH ⁇ M PUSCH ,
- the N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUSCH indicates one The number of PRB resources included in the PUSCH subband
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the first indication means indicates the number N SRS SRS subband number of the PUSCH PUSCH N subbands may be used for all subbands conventional SRS SRS transmission and a size of 4 PRB N SRS resources in a sub SRS band.
- the N PUSCH PUSCH subbands indicated by the first indication unit are divided into two or more subband groups, wherein the subbands included in each subband group are physically continuous, the two or two Each of the plurality of subband groups includes at least one of the N SRS SRS subbands.
- a second indication unit configured to: pre-define or indicate, by using UE-specific signaling, that one of the N SRS SRS sub-bands sends a current SRS signal, where the UE-specific signaling Including: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the N PUCCH indicated by the first indication unit is equal to 1 or 2.
- the N PUCCH indicated by the first indication unit is greater than 1, and the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- the N PUCCH indicated by the first indication unit is equal to 1, and the index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband.
- the N PUCCH indicated by the first indication unit is equal to 2, and the PRB resources included in the two PUCCH sub-bands are respectively M PUCCH PRB resources occupying the highest frequency and occupying the lowest frequency in the N PUSCH PUSCH sub-bands M number of PUCCH PRB resources, wherein, M represents the number of PUCCH PRB one PUCCH resource subband included.
- the N PUCCH PUCCH subbands indicated by the first indication unit do not overlap with the physical random access channel PRACH subbands.
- a third indication unit configured to: indicate, by using UE-specific signaling and/or enhanced control channel unit ECCE resources, one of all PUCCH resources included in the N PUCCH PUCCH sub-bands to transmit PUCCH data
- the UE-specific signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the PUCCH resources of different sub-bands are uniformly numbered or independently numbered; wherein the PUCCH resources include a PUCCH format 1/1a resource and a PUCCH format 2/2a resource.
- PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are uniformly numbered; and PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are numbered alternately .
- the PUCCH format 2/2a resources of different PUCCH subbands are independently numbered;
- the third indication unit indicates, for the PUCCH format 2 or the format 2a, the index of the PUCCH subband in which the PUCCH format 2/2a resource of the PUCCH format 2 or the format 2a data is transmitted and the PUCCH in the subband are transmitted through semi-static RRC signaling.
- the index of the format 2/2a resource is transmitted through semi-static RRC signaling.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third indication unit indicates, for the PUCCH format 1, the index of the PUCCH subband in which the PUCCH format 1/1a resource in which the PUCCH format 1 data is transmitted and the PUCCH format 1/1a resource in the subband are transmitted through semi-static RRC signaling. index.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third indication unit is for PUCCH format 1a:
- An index indicating a PUCCH subband in which a PUCCH format 1/1a resource of a PUCCH format 1a data is transmitted is indicated by semi-static RRC signaling, and a PUCCH format 1/1a resource indicating transmission of PUCCH format 1a data by dynamic DCI signaling The index of the PUCCH format 1/1a resource in the subband; or
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted is indicated by the semi-static RRC or the dynamic DCI signaling, and the PUCCH format of the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- the index of the PUCCH subband in which the PUCCH format 1/1a resource related to the PUCCH format 1a is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly indicated.
- All the ECCE resources included in the enhanced physical downlink control channel EPDCCH control region are divided into N PUCCH ECCE resource groups, and the N PUCCH ECCE resource groups are respectively associated with the N PUCCH PUCCH subbands;
- the third indication unit indirectly obtains an index of a PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted according to the ECCE resource, and includes:
- the third indication unit is for PUCCH format 1a:
- the index of the PUCCH format 1/1a resource that transmits the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- At least one OFDM symbol preceding the Orthogonal Frequency Division Multiplexing OFDM symbol used to receive the SRS is no longer used to receive any PUSCH or PUCCH.
- the foregoing technical solution ensures that the uplink transmission bandwidth is ensured by acquiring a resource region that can be used for transmitting an uplink physical channel and an uplink signal according to the received signaling, and transmitting the uplink physical channel and the uplink signal in the resource region.
- the normal transmission of each uplink physical channel and uplink signal of the reduced MTC terminal can be avoided, and a large loss of transmission performance and a large impact on non-MTC type terminal data transmission can be avoided.
- FIG. 1 is a flowchart of a channel and signal transmission method according to Embodiment 1 of the present invention.
- 2a and 2b are schematic diagrams of two examples of resource regions that can be used to transmit a PUSCH
- 3a and 3b are schematic diagrams of two examples of all SRS subbands that can be used for legacy SRS transmission and equal in size to 4 PRB resources, included in 4 PUSCH subbands;
- 4a and 4b are schematic diagrams of two examples of two PUCCH sub-bands included in four PUSCH sub-bands;
- 5 is a schematic diagram of PUCCH format 1/1a and PUCCH format 2/2a resource partitioning in any PUCCH subband;
- FIG. 6 is a schematic diagram of PUCCH resource independent numbering of different PUCCH subbands
- 7a and 7b are schematic diagrams showing two examples of PUCCH resource uniform numbers of different PUCCH sub-bands
- 8 is a schematic diagram of grouping ECCEs to correspond to different PUCCH subbands.
- FIG. 9 is a block diagram of an MTC terminal according to an embodiment of the present invention.
- FIG. 10 is a flowchart of a channel and signal transmission method according to Embodiment 2 of the present invention.
- FIG. 11 is a block diagram of a base station that can be used for an MTC according to Embodiment 2 of the present invention.
- the embodiment relates to a method for channel and signal transmission, which is used for a machine type communication MTC terminal. As shown in FIG. 1 , the process includes:
- Step 110 Predetermine or obtain, according to the received signaling, a resource area that can be used to send an uplink physical channel and an uplink signal.
- Step 120 Send the uplink physical channel and an uplink signal in the resource area.
- the uplink physical channel and the uplink signal include:
- PUSCH Physical Uplink Shared Channel
- PUCCH Physical Uplink Control Channel
- SRS Sounding Reference Signal
- the type of the terminal is an MTC terminal (also referred to as a bandwidth reduction MTC terminal) unless otherwise specified.
- MTC terminal also referred to as a bandwidth reduction MTC terminal
- PUSCH, PUCCH, and SRS in the text refer to PUSCH, PUCCH, and SRS for MTC, unless otherwise specified.
- the pre-defined or according to the received signaling, the resource area that can be used to send the uplink physical channel and the uplink signal includes:
- Predefining or acquiring, according to the received signaling, a resource region that can be used to transmit a PUSCH is an N PUSCH PUSCH subband determined in a system bandwidth;
- Predetermining or acquiring, according to the received signaling, a resource region that can be used to transmit the SRS is an N SRS SRS subband determined in the system bandwidth;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include at least one or more consecutive Physical Resource Block (PRB) resources; and the PRB resources included in different subbands of the same subband There is no overlap; N PUSCH , N PUCCH or N SRS is a positive integer greater than or equal to 1.
- PRB Physical Resource Block
- N PUSCH , N PUCCH or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands have the same resources as the subbands included in the resource region that can be used to receive the downlink physical channel.
- the downlink physical channel herein also refers to the downlink physical channel used for the MTC.
- the method utilizes the reciprocity of uplink and downlink channels in a TDD system. Considering the frequency domain selectivity of the radio channel, the resource region suitable for downlink transmission is also generally applicable to uplink transmission.
- the received signaling is system information block SIB signaling.
- the N PUSCH PUSCH subbands are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal- PUCCH -N PUSCH ⁇ M PUSCH,
- the N Normal-PUCCH indicates the number of PRB resources reserved for the PUCCH transmission reserved for the non-MTC terminal in the upper sideband and the lower sideband respectively (the number of PRB resources reserved in the upper sideband and the lower sideband is the same), N Total-PRB indicates the total number of PRB resources in the system bandwidth, and M PUSCH indicates the number of PRB resources included in one PUSCH sub-band; or,
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the bandwidth reduction of the MTC terminal's packet size is usually small, so the number of PRB resources it occupies is usually not large.
- the allocation method of the foregoing index may reduce the bandwidth of the PUSCH that is less than the number of PRB resources sent by the MTC terminal as close as possible to the upper and lower sidebands as much as possible to reduce resource fragmentation or segmentation of the entire uplink PUSCH data area, thereby avoiding or The large impact on non-MTC terminal type PUSCH scheduling is alleviated.
- N PUSCH and M PUSCH are equal to 4 and 6, respectively, and N Normal-PUCCH and N Total-PRB are equal to 5 and 100, respectively.
- the four PUSCH sub-bands are physically continuous and the four sub-bands are close to the lower sideband.
- N Normal-PUCCH 5
- the four PUSCH sub-bands are physically discontinuous, and the four sub-bands are divided into two groups and are respectively adjacent to the upper sideband and the lower sideband, and each sub-band group includes two physical continuous
- the N SRS SRS subbands are included in the N PUSCH PUSCH subbands, and each SRS subband includes 4 PRB resources. That is, the number N SRS SRS subband number of the PUSCH PUSCH N subbands may be used for the size of a conventional SRS SRS transmission number N is equal to all sub-band SRS SRS subbands. 4. "Available for legacy SRS transmission" herein refers to SRS transmission that can be used for a normal terminal (referring to a non-MTC terminal).
- the two or two At least one of the N SRS SRS sub-bands is included in more than one sub-band group.
- the bandwidth reduces the alignment of the SRS and the traditional or related SRS sent by the MTC terminal, avoiding the collision problem between the MTC terminal SRS and the traditional SRS as much as possible, and has better backward compatibility, and the introduced scheduler complexity is relatively low.
- the Orthogonal Frequency Division Multiplexing (OFDM) symbol used to transmit the SRS of the traditional SRS or the bandwidth reduction MTC terminal is the last OFDM symbol of the subframe.
- the system bandwidth includes a total of 12 SRS subbands of size 4, all of which can be used for legacy SRS transmission.
- the subbands that can transmit the PUSCH are four and are divided into two subband groups, and each subband group includes two physical continuous PUSCH subbands (the subbands are continuous in the time domain, However, in order to simultaneously represent the SRS subband and the OFDM symbol for transmitting the SRS, only the PUSCH subband is removed from the remaining portion of the OFDM symbol for transmitting the SRS, and in the range of each PUSCH subband group, 2 may be used.
- the SRS subband of the traditional SRS transmission shown by the twill padding.
- the SRS subband is also contiguous in the time domain. Only the OFDM symbol part of the SRS subband used to transmit the SRS is shown in the figure).
- the subband of the SRS transmission of the bandwidth reduction MTC terminal may be at least 1 of 2 SRS subbands available for legacy SRS transmission in the range of the first PUSCH subband group (including the first PUSCH subband and the second PUSCH subband) And at least one of two SRS subbands available for legacy SRS transmission in the range of the second PUSCH subband group (including the third PUSCH subband and the fourth PUSCH subband).
- the PUSCH subbands that can be used to transmit the PUSCH are four and physically continuous, and within the four physically consecutive PUSCH subbands, there are four that can be used for the legacy.
- the SRS subband of the SRS transmission (shown by the twill padding).
- the subband that can be used for the SRS transmission of the bandwidth reduction MTC terminal may be at least one of the above four SRS subbands that can be used for the conventional SRS transmission.
- the foregoing method further includes: predefining or determining, according to the received UE-specific signaling, one SRS sub-band from the N SRS SRS sub-bands to send the current SRS signal.
- the same or different SRS sub-bands belonging to the above-mentioned N SRS SRS sub-bands may be used on different SRS transmission subframes or OFDM symbols.
- the UE-specific signaling is not the signaling used to indicate the resource area in the foregoing step 110, and the UE-specific signaling includes: Downlink Control Information (DCI) signaling and/or semi-static RF resources. Control (Radio Resource Control, RRC for short) signaling.
- DCI Downlink Control Information
- RRC Radio Resource Control
- the N PUCCH is equal to 1 or 2;
- the N PUCCH is greater than 1,
- the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- the N PUCCH is equal to 1,
- the index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband.
- the index determination mode makes the bandwidth reduction as much as possible.
- the PUCCH sent by the MTC terminal is also close to the upper sideband or the lower sideband to reduce resource fragmentation or segmentation of the entire uplink PUSCH data area, thereby avoiding or mitigating. A large impact on non-MTC terminal type PUSCH scheduling.
- the N PUCCH is equal to 2
- two PUCCH PRB resources of the sub-bands are included in the PUSCH a PUSCH N subbands occupies the highest frequency PUCCH PRB-M occupies the lowest frequency resources and PUCCH number M PRB resources.
- the PUSCH resource region includes four continuous or discontinuous physical subbands, M is assumed that the M is less than the PUCCH PUSCH, PUCCH case the first sub-band ( The twill padding indicates that the M PUCCH PRB resources of the lowest frequency among the four PUSCH subbands are occupied, and the second PUCCH subband occupies the M PUCCH PRB resources of the highest frequency among the four PUSCH subbands.
- M is assumed that the M is less than the PUCCH PUSCH
- PUCCH case the first sub-band The twill padding indicates that the M PUCCH PRB resources of the lowest frequency among the four PUSCH subbands are occupied
- the second PUCCH subband occupies the M PUCCH PRB resources of the highest frequency among the four PUSCH subbands.
- the two PUCCHs The subband (shown by the twill fill) will also be near the top and bottom sidebands.
- the method obtains a frequency selective scheduling gain of a relatively large PUCCH by maximizing a frequency domain interval of two PUCCH subbands.
- the method shown in FIG. 4b can also reduce resource fragmentation or segmentation of the entire uplink PUSCH data region, thereby avoiding or mitigating a large impact on non-MTC terminal type PUSCH scheduling.
- the N PUCCH PUCCH subbands do not overlap with the physical random access channel PRACH subband.
- any one of the N PUCCH PUCCH subbands may be set to have a determined offset with the PRACH subband, and the N PUCCH PUCCH subbands respectively correspond to N PUCCH different offsets. The above method can completely avoid the conflict between the PUCCH and the PRACH signal sent by the MTC terminal.
- the PUCCH resources located in any PUCCH subband include two types: PUCCH format 1/1a resource and PUCCH format 2/2a resource; PUCCH format 1/1a resource is used to transmit PUCCH format 1 or format 1a data, and PUCCH format 1 is used.
- the bearer scheduling request (Scheduling Request for short) is used, and the PUCCH format 1a is used to carry Hybrid Automatic Repeated Request (HARQ) feedback/acknowledgement information; wherein the PUCCH format 2/2a resource is used to transmit the PUCCH format 2 or Format 2a data, PUCCH format 2 is used to carry Channel Quality Indication (CQI) information, and PUCCH format 2a is used to simultaneously carry CQI and HARQ feedback/acknowledgement information.
- CQI Channel Quality Indication
- Different PUCCH format 1/1a resources or different PUCCH format 2/2a resources may occupy the same or different PRB resources (ie, PRB resources in PUCCH subbands), and PUCCH format 1/1a resources and PUCCH format 2/2a
- the resource may occupy the same PRB resource in addition to the different PRB resources.
- different PUCCH formats 1/1a resources and/or PUCCH format 2/2a resources occupy the same PRB resource, different PUCCH formats 1/1a resources and/or The PUCCH format 2/2a resources are distinguished from each other by different orthogonal codes/sequences (code division).
- the resource number is not equivalent to the number of the PRB, and one PRB may include multiple PUCCH resources.
- any PUCCH subband includes a total of Q PUCCH (2) PUCCH format 2/2a resources and Q PUCCH (1) PUCCH format 1/1a resources, and the above two types of resources are in the PUCCH sub-port.
- the in-band numbers are 0 to Q PUCCH (2) -1 and 0 to Q PUCCH (1) -1 respectively; as described above, in the above Q PUCCH (2) PUCCH formats 2/2a and Q PUCCH (1)
- Different PUCCH resources in the PUCCH format 1/1a resources may occupy the same or different PRB resources.
- one of all PUCCH resources included in the N PUCCH PUCCH subbands is obtained by using the received UE-specific signaling and/or an enhanced Control Channel Element (ECCE) resource. Transmit PUCCH data.
- the foregoing ECCE is an enhanced physical downlink control channel (Enhanced Physical) The minimum resource unit of the Downlink Control Channel (EPDCCH).
- the EPDCCH is used to carry at least DCI information (such as resource allocation, modulation and coding mode, etc.) for controlling physical downlink shared channel (PDSCH) transmission.
- DCI information such as resource allocation, modulation and coding mode, etc.
- PDSCH physical downlink shared channel
- the MTC terminal cannot receive the PDCCH, and can only receive the EPDCCH to obtain the corresponding DCI information. Therefore, the PDSCH and the EPDCCH are in one-to-one correspondence, that is, before receiving the PDSCH, the corresponding EPDCCH needs to be advanced.
- the UE-specific signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the EPDCCH is an EPDCCH that controls downlink PDSCH transmission of the MTC terminal
- the EPDCCH control region is a downlink resource region that can be used to transmit the EPDCCH, unless otherwise specified.
- the EPDCCH always occupies part of the ECCE resources in the EPDCCH control region.
- PUCCH format 1a unlike other periodically transmitted PUCCH formats, it belongs to bursty transmission. Therefore, if the above dynamic DCI signaling is used to obtain the determined PUCCH format 1/1a resource, although the flexibility is high, in order to ensure resource utilization efficiency or capacity, a large amount of additional downlink control overhead may be caused; if the above half Static RRC signaling is used to obtain the determined PUCCH format 1/1a resource. Due to its semi-static attribute, dynamic configuration of signaling may not be implemented, so the MTC terminal must occupy the determined time for a relatively long time. PUCCH format 1/1a resources, which reduces resource utilization efficiency.
- the flexible scheduling of the scheduler can also avoid the large reduction of resource utilization efficiency as much as possible, but this increases the additional complexity of the scheduler.
- implicitly determining the PUCCH format 1/1a resource according to the ECCE resources constituting the EPDCCH has certain advantages compared with other methods.
- the PUCCH resources of different PUCCH sub-bands are uniformly numbered or independently numbered, and the specific manner may be defined by a protocol/standard.
- the PUCCH resources of different PUCCH sub-bands are numbered independently, in order to obtain the determined PUCCH resources, the index of the sub-band in which the PUCCH resource is located and the PUCCH resource index in the sub-band must be acquired in advance;
- the PUCCH resource in order to obtain the determined PUCCH resource, the PUCCH resource must be pre-acquired in the global PUCCH resource range, where the global PUCCH resource refers to all PUCCH resources included in all PUCCH sub-bands.
- the PUCCH format 1/1a resource and/or the PUCCH format 2/2a resource of different PUCCH subbands are uniformly numbered, the PUCCH format 1/1a resource and/or the PUCCH format 2/2a resource of different PUCCH subbands are mutually Numbered alternately.
- the resource region used for transmitting the PUCCH includes 2 PUCCH subbands, each subband includes Q PUCCH (x) PUCCH resources, and the PUCCH resources in the 2 PUCCH subbands are independently numbered.
- the index of the Q PUCCH (x) PUCCH resources included in each subband is 0 to Q PUCCH (x) -1; wherein the PUCCH resource may be a PUCCH format 2/2a or a PUCCH format 1/1a resource (ie x is equal to 1 or 2).
- the resource region used for transmitting the PUCCH includes two PUCCH subbands, and each subband includes Q PUCCH (x) PUCCH resources.
- the PUCCH resources of the two subbands are uniformly numbered, as shown in FIG. 7a
- the index of the PUCCH resource included in the first PUCCH subband is 0 to Q PUCCH (x) -1
- the index of the PUCCH resource included in the second PUCCH subband is Q PUCCH (x) to 2Q PUCCH (x) -1.
- FIG. 7a the index of the PUCCH resource included in the first PUCCH subband is 0 to Q PUCCH (x) -1
- the index of the PUCCH resource included in the second PUCCH subband is Q PUCCH (x) to 2Q PUCCH (x) -1.
- the index of the PUCCH resource included in the first PUCCH subband is 0, 2, 4, 6, 8, ..., 2Q PUCCH (x) -4, Q PUCCH (x index) -2
- the second sub-band PUCCH PUCCH resource is included: 1,3,5,7,9, ising, 2Q PUCCH ( x) -3, Q PUCCH (x) -1.
- This example implements the numbering of PUCCH resources in which PUCCH resources of different PUCCH subbands are interleaved.
- interleaved number means that the PUCCH resources of each sub-band are divided into X (X is greater than 1 positive integer) groups, and the global range is numbered in the following order:
- the indices in Figures 7a and 7b are indices within the global PUCCH resource range, and similarly, the PUCCH resources may be PUCCH format 2/2a resources and/or PUCCH format 1/1a resources.
- the index of the PUCCH subband in which the PUCCH format 2/2a resource in which the PUCCH format 2 or the format 2a data is transmitted and the PUCCH format 2/2a resource in the subband are acquired by semi-static RRC signaling. index.
- the determined PUCCH format 1/1a resource is obtained in one of the following ways:
- the index of the PUCCH subband in which the PUCCH format 1a1 resource is transmitted and the PUCCH format 1/1a resource in the subband are obtained by semi-static RRC or dynamic DCI signaling;
- the index of the PUCCH subband in which the PUCCH format 1/1a resource is transmitted is obtained by semi-static RRC signaling, and the PUCCH format 1 for transmitting the PUCCH format 1a data is obtained through dynamic DCI signaling.
- the PUCCH subband of the PUCCH format 1/1a resource in which the PUCCH format 1a data is transmitted is obtained by semi-static RRC or dynamic DCI signaling, and the PUCCH format 1 for transmitting the PUCCH format 1a data is obtained indirectly according to the ECCE resource.
- n PUCCH (1) represents an index of a sub-band PUCCH format 1/1a resource
- O UE is a UE-specific extra offset
- f(n ECCE , p) depends on whether the EPDCCH belongs to a localized or a distributed Type (Distributed)
- the specific value can be determined according to the following equation:
- n ECCE is an index of the first ECCE occupied by the EPDCCH
- N is the number of ECCEs included in each PRB
- k p is determined according to a Demodulation Reference Signal (DMRS) port used for demodulating the EPDCCH.
- DMRS Demodulation Reference Signal
- the index of the PUCCH subband in which the PUCCH format 1a1 data of the PUCCH format 1a data is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly obtained according to the ECCE resource.
- all the ECCE resources included in the EPDCCH control region may be divided into N PUCCH groups (N PUCCH indicates the number of PUCCH subbands), and the N PUCCH groups respectively correspond to the N PUCCH PUCCH subbands.
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted may be determined according to the PUCCH subband corresponding to the ECCE resource group in which the one ECCE resource is occupied by the EPDCCH.
- the number of PUCCH sub-bands is assumed to be two, and the EPDCCH control area related to the MTC terminal includes a total of N ECCE ECCE resources; wherein, the ECCE resources belonging to the first ECCE group are 4K and 4K+1.
- the ECCE resources belonging to the second ECCE group with the numbers 4K+2 and 4K+3 correspond to the PUCCH format 1/1a resource in the second PUCCH subband ;
- K is a positive integer greater than 0 and less than or equal to ceiling (N ECCE /4), and ceiling indicates an operation of taking an integer upward;
- the corresponding PUCCH format 1/1a resource is located in the first PUCCH sub-band; similarly, if the EPDCCH is allocated resources for the MTC terminal The first ECCE occupied is located in the second ECCE group, and the corresponding PUCCH format 1/1a resource is located in the second PUCCH subband.
- an index of a PUCCH format 1/1a resource in a corresponding subband may be obtained according to the following equation:
- n PUCCH (1) represents an index of a sub-band PUCCH format 1/1a resource
- O UE is a UE-specific extra offset
- f(n ECCE , p) depends on whether the EPDCCH belongs to a localized or a distributed Type (Distributed)
- the specific value can be determined according to the following equation:
- n ECCE is an index of the first ECCE occupied by the EPDCCH in the ECCE group. For example, as shown in FIG. 8 , for the ECCE with the index of 5 and belonging to the first ECCE group, it is in the first ECCE group. The index is 3 (counting from 0); N is the number of ECCEs included in each PRB, and k p is determined according to the DMRS port used to demodulate the EPDCCH, and satisfies:
- PUCCH format 2/2a resources of different PUCCH subbands are uniformly numbered
- PUCCH format 2/2a for transmitting PUCCH format 2 or format 2a data is obtained by semi-static RRC signaling.
- the index of the resource is obtained by semi-static RRC signaling.
- an index of PUCCH format 1/1a resources for transmitting PUCCH format 1 data is obtained by semi-static RRC signaling.
- PUCCH format 1/1a resources of different PUCCH subbands are uniformly numbered
- PUCCH format 1/1a resources related to the PUCCH format 1a are obtained by semi-static RRC or dynamic DCI signaling.
- the index of the PUCCH format 1/1a resource related to the PUCCH format 1a is obtained indirectly according to the ECCE resource.
- the index of the PUCCH format 1/1a resource may be obtained according to the following equation:
- n PUCCH (1) represents the index of the global PUCCH format 1/1a resource
- the O UE is the UE-specific extra offset
- f(n ECCE , p) depends on whether the EPDCCH belongs to the localized or distributed Type (Distributed)
- the specific value can be determined according to the following equation:
- n ECCE is the index of the first ECCE occupied by the EPDCCH
- N is the number of ECCEs included in each PRB
- k p is determined according to the DMRS port used for demodulating the EPDCCH, and satisfies:
- EPDCCH and ECCE described above refer to EPDCCH and ECCE for MTC. It should be noted that the foregoing ECCE resource may be, but is not limited to, the first ECCE resource occupied by the EPDCCH, or may be other ECCE resources occupied by the EPDCCH. Considering the complexity of resource allocation, the first ECCE resource is optimal compared to other ECCE resources.
- the PUCCH format 1/1a resources of different sub-bands are uniformly numbered, and the index of the PUCCH format 1a data PUCCH format 1/1a resource is indirectly obtained according to the ECCE resource, the higher EPDCCH and the PUCCH format 1/1a are acquired.
- the scheduling flexibility of the resources in different PUCCH sub-bands, the PUCCH format 1/1a resources of different PUCCH sub-bands are preferably numbered in the PUCCH format 1/1a resource in an interleaved manner as described above; in this case, more adjacent
- the indexed ECCE resources may correspond to PUCCH format 1/1a resources of different subbands.
- This can avoid the conversion of the MTC terminal radio components between different frequency bands and maintain the frequency selective scheduling of the PUSCH as much as possible, thereby avoiding additional radio frequency conversion costs and excessive performance loss.
- at least one OFDM symbol before the OFDM symbol used for transmitting the SRS is no longer used to transmit PUSCH or PUCCH data, that is, the at least one OFDM symbol is not used, to reserve a radio frequency conversion interval for the MTC terminal to transmit in different frequency bands. .
- the repeated transmission of the PUSCH or PUCCH and the frequency domain frequency hopping technique can be turned on; similar to the above method in which the OFDM symbols are vacant, if the frequency domain of adjacent subframes during repeated transmissions
- the resource needs to be changed due to the presence of frequency hopping, and one of the adjacent subframes, or at least one of the OFDM symbols, may also be vacant, to reserve a radio frequency switching interval for the MTC terminal to transmit in different frequency bands.
- the embodiment further provides an MTC terminal, as shown in FIG. 9, including:
- the first obtaining unit 10 is configured to: pre-define or acquire, according to the received signaling, a resource area that can be used to send an uplink physical channel and an uplink signal;
- the sending unit 20 is configured to: send the uplink physical channel and an uplink signal in the resource area;
- the uplink physical channel and the uplink signal include: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a sounding reference signal SRS.
- a resource area that is used to send an uplink physical channel and an uplink signal according to the received signaling including:
- Predefining or acquiring, according to the received signaling, a resource region that can be used to transmit a PUSCH is an N PUSCH PUSCH subband determined in a system bandwidth;
- Predefined or based on the received signaling and acquires the PUCCH resource region may be used to transmit the system bandwidth is determined in one PUCCH PUCCH N subbands;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include at least one or more consecutive physical resource block PRB resources; the PRB resources included in different subbands of the same subband do not overlap; N PUSCH , N PUCCH or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands acquired by the first acquiring unit are the same as the resources occupied by the subbands included in the resource region that can be used to receive the downlink physical channel.
- the signaling received by the first acquiring unit is system information block SIB signaling.
- the N PUSCH PUSCH subbands obtained by the first acquiring unit are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal- PUCCH -N PUSCH ⁇ M PUSCH,
- the N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUSCH indicates one The number of PRB resources included in the PUSCH subband
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the first acquisition unit acquires the number N SRS SRS subband number of the PUSCH PUSCH N subbands may be used for SRS transmission and a size of a conventional four SRS number N PRB resources of all sub SRS SRS subbands band.
- the N PUSCH PUSCH subbands acquired by the first acquiring unit are divided into two or more subband groups, wherein the subbands included in each subband group are physically continuous, the two or two Each of the plurality of subband groups includes at least one of the N SRS SRS subbands.
- a second obtaining unit configured to: pre-define or determine one SRS sub-band from the N SRS SRS sub-bands to transmit a current SRS signal according to the received UE-specific signaling, where the UE is proprietary
- the signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the N PUCCH acquired by the first acquiring unit is equal to 1 or 2.
- the N PUCCH acquired by the first acquiring unit is greater than 1, and the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- the N PUCCH acquired by the first acquiring unit is equal to 1, and the index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband.
- the N PUCCH obtained by the first acquiring unit is equal to 2, and the PRB resources included in the two PUCCH sub-bands are respectively M PUCCH PRB resources occupying the highest frequency and occupying the lowest frequency in the N PUSCH PUSCH sub-bands.
- the N PUCCH PUCCH subbands acquired by the first acquiring unit do not overlap with the physical random access channel PRACH subbands.
- a third obtaining unit configured to: acquire one of all PUCCH resources included in the N PUCCH PUCCH subband according to the received UE-specific signaling and/or the enhanced control channel unit ECCE resource, to transmit the PUCCH Data, where the UE-specific signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the PUCCH resources of different PUCCH sub-bands are uniformly numbered or independently numbered, where the PUCCH resources include a PUCCH format 1/1a resource and a PUCCH format 2/2a resource.
- the specific method of numbering can be implicit in the configuration information of the terminal, such as the configured algorithm.
- PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are uniformly numbered; and PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are numbered alternately .
- the PUCCH format 2/2a resources of different PUCCH subbands are independently numbered;
- the third acquiring unit acquires, by using semi-static RRC signaling, the index of the PUCCH subband in which the PUCCH format 2/2a resource of the PUCCH format 2 or the format 2a data is located, and the PUCCH in the subband, for the PUCCH format 2 or the format 2a.
- the index of the format 2/2a resource is not limited to, but not limited to, but not limited to, but not limited to, but not limited to the index of the PUCCH subband in which the PUCCH format 2/2a resource of the PUCCH format 2 or the format 2a data is located, and the PUCCH in the subband, for the PUCCH format 2 or the format 2a.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third acquiring unit acquires an index of a PUCCH subband in which a PUCCH format 1/1a resource is transmitted and a PUCCH format 1/1a resource in a subband by semi-static RRC signaling. index.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third obtaining unit is for PUCCH format 1a:
- the index of the PUCCH subband in which the PUCCH format 1a data of the PUCCH format 1a data is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly obtained.
- All the ECCE resources included in the enhanced physical downlink control channel EPDCCH control region are divided into N PUCCH ECCE resource groups, and the N PUCCH ECCE resource groups are respectively associated with the N PUCCH PUCCH subbands;
- the third obtaining unit indirectly obtains an index of a PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted according to the ECCE resource, and includes:
- the third obtaining unit is for PUCCH format 1a:
- an index of the PUCCH format 1/1a resource that transmits the PUCCH format 1a data is indirectly obtained.
- the transmitting unit is on a subframe in which the PUSCH and the SRS or the PUCCH and the SRS need to be simultaneously transmitted:
- At least one OFDM symbol preceding the Orthogonal Frequency Division Multiplexing OFDM symbol used to transmit the SRS is no longer used to transmit any PUSCH or PUCCH.
- the embodiment relates to a channel and a signal transmission method, and is used for a base station capable of performing MTC. As shown in FIG. 10, the method includes:
- Step 210 Predetermine or indicate, by signaling, a resource area that can be used to send an uplink physical channel and an uplink signal.
- Step 220 Receive an uplink physical channel and an uplink signal sent by the MTC terminal in the resource area.
- the uplink physical channel and the uplink signal include: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a sounding reference signal SRS.
- the predefined or signaling indicating a resource area that can be used to send an uplink physical channel and an uplink signal, includes:
- Predefining or signaling indicating that the resource region available for transmitting the PUSCH is the N PUSCH PUSCH subband determined in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the PUCCH is the determined N PUCCH PUCCH subband in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the SRS is the determined N SRS SRS subband in the system bandwidth;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include one or a plurality of physical resource block PRB resources; the PRB resources included in different subbands of the same subband do not overlap; N PUSCH and N PUCCH Or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands are the same as the resources occupied by the subbands included in the resource region that can be used to send the downlink physical channel.
- the method utilizes the reciprocity of uplink and downlink channels in a TDD system. Considering the frequency domain selectivity of the radio channel, the resource region suitable for downlink transmission is also generally applicable to uplink transmission.
- the signaling is system information block SIB signaling.
- the N PUSCH PUSCH subbands are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal- PUCCH -N PUSCH ⁇ M PUSCH,
- the N Normal-PUCCH indicates that the upper sideband and the lower sideband respectively reserve the number of PRB resources for PUCCH transmission reserved by the relevant LTE system for supporting the UE type, and N Total-PRB indicates the total number of PRB resources in the system bandwidth, and M PUSCH indicates The number of PRB resources included in one PUSCH subband; or
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the bandwidth reduction of the MTC terminal's packet size is usually small, so the number of PRB resources it occupies is usually not large.
- the foregoing index determining method can reduce the bandwidth of the PUSCH that is less than the number of PRBs sent by the MTC terminal as close as possible to the upper and lower sidebands as much as possible to reduce resource fragmentation or segmentation of the entire uplink PUSCH data area, thereby avoiding or reducing the pair. Large impact of non-MTC terminal type PUSCH scheduling.
- the determined resource occupied by the PUSCH may be any physical continuous PRB resource within the range of the above-mentioned N PUSCH PUSCH sub-bands, but the number of consecutive PRB resources cannot exceed the UE-supported Narrow band size.
- the N SRS SRS subbands are included in the N PUSCH PUSCH subbands, and each SRS subband includes 4 PRB resources. That is, the number N SRS SRS subband number of the PUSCH PUSCH N subbands may be used in a conventional SRS transmission size is equal to N th SRS SRS SRS subbands of all four sub-bands in PRB resources.
- the N PUSCH PUSCH sub-bands are divided into two or more sub-band groups, wherein the sub-bands included in each sub-band group are physically continuous, and the two or more sub-bands are Each subband group in the group includes at least one of the N SRS SRS subbands.
- N SRS SRS subbands always configured or default SRS subbands of all N subbands of the N th PUSCH PUSCH sub-band may be used to equal the size of a conventional SRS transmission 4 PRB resource to ensure that the
- the bandwidth reduces the alignment of the SRS and the traditional or related SRS sent by the MTC terminal, avoiding the bandwidth reduction of the SRS and the traditional SRS conflicts sent by the MTC terminal as much as possible, and has better backward compatibility, and introduced scheduler complexity. It is also relatively low.
- the OFDM symbols used to transmit the SRS of the legacy SRS or the bandwidth reduction MTC terminal are all the last OFDM symbols of the subframe.
- one of the N SRS SRS subbands is pre-defined or indicated by the UE-specific signaling to send the current SRS signal.
- the UE-specific signaling includes: Downlink Control Information (DCI) signaling and/or semi-static Radio Resource Control (RRC) signaling.
- DCI Downlink Control Information
- RRC Radio Resource Control
- the N PUCCH is equal to 1 or 2;
- the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- an index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband. Similar to the PUSCH sent by the MTC terminal, the index determination mode makes the bandwidth reduction as much as possible. The PUCCH sent by the MTC terminal is also close to the upper sideband or the lower sideband to reduce resource fragmentation or segmentation of the entire uplink PUSCH data area, thereby avoiding or mitigating. A large impact on non-bandwidth reduction MTC terminal type PUSCH scheduling.
- the two sub-bands PUCCH PRB resources comprise respectively a PUSCH PUSCH the N subbands M PUCCH occupies the highest frequency and a lowest frequency resource PRB M-th PRB PUCCH resource.
- the two PUCCH subbands will also be close to the upper sideband and Lower sideband.
- the method obtains a frequency selective scheduling gain of a relatively large PUCCH by maximizing a frequency domain interval of two PUCCH subbands.
- the method shown in FIG. 4b can also reduce resource fragmentation or segmentation of the entire uplink PUSCH data region, thereby avoiding or mitigating a large impact on non-bandwidth reduction MTC terminal type PUSCH scheduling.
- the N PUCCH PUCCH subbands do not overlap with the physical random access channel PRACH subband.
- any one of the N PUCCH PUCCH subbands may be set to have a determined offset with the PRACH subband, and the N PUCCH PUCCH subbands respectively correspond to N PUCCH different offsets. The above method can completely avoid the conflict between the PUCCH and the PRACH signal sent by the MTC terminal.
- the foregoing method further includes:
- the ECCE is the smallest resource unit constituting the EPDCCH.
- the EPDCCH is used at least to carry DCI information (such as resource allocation and modulation and coding modes, etc.) for controlling PDSCH transmission.
- DCI information such as resource allocation and modulation and coding modes, etc.
- the MTC terminal cannot receive the PDCCH, and can only receive the EPDCCH to obtain the corresponding DCI information. Therefore, the PDSCH and the EPDCCH are in one-to-one correspondence, that is, before receiving the PDSCH, the corresponding EPDCCH needs to be advanced.
- PUCCH format 1a unlike other periodically transmitted PUCCH formats, It is a bursty transmission. Therefore, if the above dynamic DCI signaling is used to obtain the determined PUCCH format 1a resource, although the flexibility is high, in order to ensure resource utilization efficiency or capacity, a large amount of additional downlink control overhead may be caused; if the above semi-static RRC signaling is used to obtain the determined PUCCH format 1a resource. Due to its semi-static attribute, dynamic configuration of signaling may not be implemented, so the UE must occupy the determined PUCCH format 1a resource for a relatively long time.
- the PUCCH resources of different PUCCH sub-bands are uniformly numbered or independently numbered, and the specific manner may be defined in related protocols/standards.
- the PUCCH resources include a PUCCH format 1/1a resource and a PUCCH format 2/2a resource.
- the PUCCH resources of different PUCCH sub-bands are numbered independently, in order to obtain the determined PUCCH resources, the index of the sub-band in which the PUCCH resource is located and the PUCCH resource index in the sub-band must be acquired in advance;
- the PUCCH resource in order to obtain the determined PUCCH resource, the PUCCH resource must be pre-acquired in the global PUCCH resource range, where the global PUCCH resource refers to all PUCCH resources included in all PUCCH sub-bands.
- PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are uniformly numbered, PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are Numbered alternately.
- the index of the PUCCH subband in which the PUCCH format 2/2a resource in which the PUCCH format 2 or the format 2a data is transmitted and the PUCCH format 2/2a resource in the subband are indicated by semi-static RRC signaling. index.
- the index of the PUCCH subband in which the PUCCH format 1/1a resource in which the PUCCH format 1 data is transmitted and the PUCCH in the subband are indicated by semi-static RRC signaling.
- the index of the format 1/1a resource is indicated by semi-static RRC signaling.
- PUCCH format 1/1a resources of different PUCCH subbands are independently numbered, for PUCCH format 1a:
- An index of a PUCCH subband in which a PUCCH format 1/1a resource in which PUCCH format 1a data is transmitted and a PUCCH format 1/1a resource in a subband are indicated by semi-static RRC or dynamic DCI signaling; or
- An index indicating a PUCCH subband in which a PUCCH format 1/1a resource of a PUCCH format 1a data is transmitted is indicated by semi-static RRC signaling, and a PUCCH format 1/1a resource indicating transmission of PUCCH format 1a data by dynamic DCI signaling The index of the PUCCH format 1/1a resource in the subband; or
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted is indicated by the semi-static RRC or the dynamic DCI signaling, and the PUCCH format 1/1a of the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly indicated.
- all the ECCE resources included in the enhanced physical downlink control channel EPDCCH control region are divided into N PUCCH ECCE resource groups, and the N PUCCH ECCE resource groups are respectively associated with the N PUCCH PUCCH subbands;
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted may be determined according to the PUCCH subband corresponding to the ECCE resource group in which the one ECCE resource is occupied by the EPDCCH.
- an index indicating a PUCCH format 2/2a resource for transmitting PUCCH format 2 or format 2a data is indicated by semi-static RRC signaling.
- an index indicating a PUCCH format 1/1a resource for transmitting PUCCH format 1 data is indicated by semi-static RRC signaling.
- the index of the PUCCH format 1/1a resource that transmits the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- the repeated transmission of the PUSCH or PUCCH and the frequency domain frequency hopping technique can be turned on; similar to the above method in which the OFDM symbols are vacant, if the frequency domain of adjacent subframes during repeated transmissions
- the resource needs to be changed due to the presence of frequency hopping, and one of the adjacent subframes, or at least one of the OFDM symbols, may also be vacant, to reserve a radio frequency switching interval for the MTC terminal to transmit in different frequency bands.
- the base station capable of performing machine type communication MTC provided by this embodiment is as shown in FIG. 11, and includes:
- the first indication unit 50 is configured to: pre-define or indicate, by signaling, a resource area that can be used to send an uplink physical channel and an uplink signal;
- the receiving unit 60 is configured to: receive, in the resource area, an uplink physical channel and an uplink signal sent by the MTC terminal;
- the uplink physical channel and the uplink signal include: a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, and a sounding reference signal SRS.
- the first indication unit pre-defines or indicates, by using signaling, a resource area that can be used to send an uplink physical channel and an uplink signal, including:
- Predefining or signaling indicating that the resource region available for transmitting the PUSCH is the N PUSCH PUSCH subband determined in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the PUCCH is the determined N PUCCH PUCCH subband in the system bandwidth;
- Predefining or signaling indicating that the resource region available for transmitting the SRS is the determined N SRS SRS subband in the system bandwidth;
- the PUSCH subband, the PUCCH subband, and the SRS subband each include one or a plurality of physical resource block PRB resources; the PRB resources included in different subbands of the same subband do not overlap; N PUSCH and N PUCCH Or N SRS is a positive integer greater than or equal to 1.
- the N PUSCH PUSCH subbands indicated by the first indication unit are the same as the resources occupied by the subbands included in the resource region that can be used to transmit the downlink physical channel.
- the first indication unit indicates, by using a system information block SIB signaling, a resource region that can be used to send an uplink physical channel and an uplink signal.
- the N PUSCH PUSCH subbands indicated by the first indication unit are physically consecutive subbands, and the index of the first PRB resource occupied by the N PUSCH subbands is:
- N Normal-PUCCH or, N Total-PRB -N Normal- PUCCH -N PUSCH ⁇ M PUSCH,
- the N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUSCH indicates one The number of PRB resources included in the PUSCH subband
- the N PUSCH subbands are divided into two subband groups, and the subbands included in each subband group are physically continuous, wherein the index of the first PRB resource occupied by the first subband group and the second subband group occupy The index of the first PRB resource is:
- N Normal-PUCCH and, N Total-PRB -N Normal-PUCCH -N PUSCH (2) ⁇ M PUSCH ,
- N PUSCH (2) represents the number of subbands included in the second PUSCH subband group.
- the first indication means indicates the number N SRS SRS subband number of the PUSCH PUSCH N subbands may be used for all subbands conventional SRS SRS transmission and a size of 4 PRB N SRS resources in a sub SRS band.
- the N PUSCH PUSCH subbands indicated by the first indication unit are divided into two or more subband groups, wherein the subbands included in each subband group are physically continuous, the two or two Each of the plurality of subband groups includes at least one of the N SRS SRS subbands.
- a second indication unit configured to: pre-define or indicate, by using UE-specific signaling, that one of the N SRS SRS sub-bands sends a current SRS signal, where the UE-specific signaling Including: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the N PUCCH indicated by the first indication unit is equal to 1 or 2.
- the N PUCCH indicated by the first indication unit is greater than 1, and the N PUCCH PUCCH subbands are included in the N PUSCH PUSCH subbands.
- the N PUCCH indicated by the first indication unit is equal to 1, and the index of the first PRB resource occupied by the PUCCH subband is:
- N Normal-PUCCH or, N Total-PRB -N Normal-PUCCH -M PUCCH ,
- N Normal-PUCCH indicates the number of PRB resources reserved for PUCCH transmission in the upper sideband and the lower sideband respectively for the non-MTC terminal
- N Total-PRB indicates the total number of PRB resources in the system bandwidth
- M PUCCH indicates one The number of PRB resources included in the PUCCH subband.
- the N PUCCH indicated by the first indication unit is equal to 2, and the PRB resources included in the two PUCCH sub-bands are respectively M PUCCH PRB resources occupying the highest frequency and occupying the lowest frequency in the N PUSCH PUSCH sub-bands M number of PUCCH PRB resources, wherein, M represents the number of PUCCH PRB one PUCCH resource subband included.
- the N PUCCH PUCCH subbands indicated by the first indication unit do not overlap with the physical random access channel PRACH subbands.
- a third indication unit configured to: indicate, by using UE-specific signaling and/or enhanced control channel unit ECCE resources, one of all PUCCH resources included in the N PUCCH PUCCH sub-bands to transmit PUCCH data
- the UE-specific signaling includes: dynamic downlink control information DCI signaling and/or semi-static radio resource control RRC signaling.
- the PUCCH resources of different sub-bands are uniformly numbered or independently numbered; wherein the PUCCH resources include a PUCCH format 1/1a resource and a PUCCH format 2/2a resource.
- PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are uniformly numbered; and PUCCH format 1/1a resources and/or PUCCH format 2/2a resources of different PUCCH subbands are numbered alternately .
- the PUCCH format 2/2a resources of different PUCCH subbands are independently numbered;
- the third indication unit indicates, for the PUCCH format 2 or the format 2a, the index of the PUCCH subband in which the PUCCH format 2/2a resource of the PUCCH format 2 or the format 2a data is transmitted and the PUCCH in the subband are transmitted through semi-static RRC signaling.
- the index of the format 2/2a resource is transmitted through semi-static RRC signaling.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third indication unit indicates, for the PUCCH format 1, the index of the PUCCH subband in which the PUCCH format 1/1a resource in which the PUCCH format 1 data is transmitted and the PUCCH format 1/1a resource in the subband are transmitted through semi-static RRC signaling. index.
- the PUCCH format 1/1a resources of different PUCCH subbands are independently numbered;
- the third indication unit is for PUCCH format 1a:
- An index of a PUCCH subband in which a PUCCH format 1/1a resource in which PUCCH format 1a data is transmitted and a PUCCH format 1/1a resource in a subband are indicated by semi-static RRC or dynamic DCI signaling; or
- An index indicating a PUCCH subband in which a PUCCH format 1/1a resource of a PUCCH format 1a data is transmitted is indicated by semi-static RRC signaling, and a PUCCH format 1/1a resource indicating transmission of PUCCH format 1a data by dynamic DCI signaling The index of the PUCCH format 1/1a resource in the subband; or
- the index of the PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted is indicated by the semi-static RRC or the dynamic DCI signaling, and the PUCCH format of the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- the index of the PUCCH subband in which the PUCCH format 1/1a resource related to the PUCCH format 1a is transmitted and the index of the PUCCH format 1/1a resource in the subband are indirectly indicated.
- All the ECCE resources included in the enhanced physical downlink control channel EPDCCH control region are divided into N PUCCH ECCE resource groups, and the N PUCCH ECCE resource groups are respectively associated with the N PUCCH PUCCH subbands;
- the third indication unit indirectly obtains an index of a PUCCH subband in which the PUCCH format 1/1a resource of the PUCCH format 1a data is transmitted according to the ECCE resource, and includes:
- the third indication unit is for PUCCH format 1a:
- the index of the PUCCH format 1/1a resource that transmits the PUCCH format 1a data is indirectly indicated according to the ECCE resource.
- At least one OFDM symbol preceding the Orthogonal Frequency Division Multiplexing OFDM symbol used to receive the SRS is no longer used to receive any PUSCH or PUCCH.
- the first embodiment and the second embodiment describe the uplink physical channel and the uplink signal transmission method for the MTC in the same system.
- the first embodiment is described from the terminal side, and the second embodiment is described from the base station side. Therefore, the examples, algorithms, and other descriptions of the above preferred modes in the second embodiment can be referred to the corresponding descriptions of the first embodiment and the corresponding drawings.
- the PRB resource is equivalent to the PRB pair resource of one subframe in the related LTE system and spans 12 subcarriers in frequency.
- the foregoing embodiment acquires a resource region that can be used for transmitting an uplink physical channel/signal according to a predefined or according to signaling, such as broadcast signaling, and sends the uplink physical channel in the resource region.
- the /signal method ensures normal transmission of each uplink physical channel/signal from the bandwidth reduction UE, and avoids a large loss of transmission performance and a large impact on non-MTC type terminal data transmission.
- the foregoing solution ensures that the uplink transmission bandwidth is reduced by pre-defining or acquiring a resource region that can be used for transmitting the uplink physical channel and the uplink signal according to the received signaling, and transmitting the uplink physical channel and the uplink signal in the resource region.
- the normal transmission of the uplink physical channel and the uplink signal of the MTC terminal can avoid large loss of transmission performance and large influence on non-MTC type terminal data transmission. Therefore, the present invention has strong industrial applicability.
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- Mobile Radio Communication Systems (AREA)
Abstract
一种信道和信号传输方法及相应的终端、基站,MTC终端预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域;在所述资源区域内发送所述上行物理信道和上行信号;相应地,可进行MTC的基站预定义或通过信令指示可用于发送上行物理信道和上行信号的资源区域;并在所述资源区域内接收MTC终端发送的上行物理信道和上行信号;其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。本发明技术方案确保了上行传输带宽减少的MTC终端的各上行物理信道和上行信号的正常传输,并且可以避免了传输性能的较大损失。
Description
本文涉及上行物理信道和上行信号传输的技术领域,具体而言,涉及一种上行物理信道和上行信号传输的方法及相应的终端、基站。
机器类型通信(Machine Type Communication,简称MTC)用户终端(User Equipment,简称UE),又称机器到机器(Machine to Machine,简称M2M)用户通信设备,是现阶段物联网的主要应用形式。低功耗低成本是其可大规模应用的重要保障。智能抄表(Smart Metering)类设备是MTC设备最典型的应用之一。目前市场上部署的M2M设备主要基于全球移动通信(Global System of Mobile communication,简称GSM)系统。
近年来,由于长期演进(Long Term Evolution,简称LTE)系统的频谱效率较高,所以越来越多的移动运营商已经确定LTE作为未来宽带无线通信系统的演进方向,基于LTE的M2M多种类数据业务也将更具吸引力。但是,只有基于LTE的M2M设备的成本做到比基于GSM的M2M设备低,M2M业务才能真正从GSM转到LTE系统上,所以如何能够彻底地降低LTE-M2M设备的成本成为各公司和研究机构所要考虑的首要问题。
MTC UE的成本主要来自两部分:基带处理部分和射频部分,而减小UE上行和/或下行传输带宽(包括基带和射频带宽)是降低MTC UE成本的一种非常有效的方式,例如,在系统带宽为20MHz的情况下,设置MTC UE上行和/或下行传输带宽仅为1.4MHz等窄带带宽。考虑到与上行传输带宽的减少相比较,下行传输带宽的减少能够提供更多的成本节省,所以目前各公司和研究机构主要关注在MTC UE下行传输带宽减少的情况下的各下行物理信道和信号的设计。但是在MTC UE上行传输带宽减少的情况下,如何确保各种上行物理信道和上行信号的正常传输尚没有好的解决方案。
发明内容
有鉴于此,为解决相关技术存在的技术问题,本发明采用如下技术方案:
提供一种信道和信号传输方法,用于机器类型通信MTC终端,包括:
预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域;
在所述资源区域内发送所述上行物理信道和上行信号;
其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
可选地,
所述预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或根据接收的信令,获取可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或根据接收的信令,获取可用于发送PUCCH的资源区域为系统带宽中确定的NPUCCH个PUCCH子带;以及
预定义或根据接收的信令,获取可用于发送SRS的资源区域为系统带宽中确定的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括至少一个或多个连续的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
可选地,
对于时分双工TDD系统,所述NPUSCH个PUSCH子带与可用于接收下行物理信道的资源区域所包括的子带所占资源相同。
可选地,
所述接收的信令为系统信息块SIB信令。
可选地,
所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所
占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
可选地,
所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带。
可选地,
所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
可选地,
还包括:预定义或根据接收的UE专有信令,从所述NSRS个SRS子带中确定一个SRS子带以发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
所述NPUCCH等于1或2。
可选地,
所述NPUCCH大于1,
所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,
所述NPUCCH等于1,
所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
可选地,
还包括:根据接收的UE专有信令,和/或增强的控制信道单元ECCE资源,获取所述NPUCCH个PUCCH子带所包含的所有PUCCH资源中的一个以传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
不同PUCCH子带的PUCCH资源统一编号或独立编号;所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错的进行编号。
可选地,
不同PUCCH子带的PUCCH格式2/2a资源独立编号;
对于PUCCH格式2或格式2a,通过半静态的RRC信令,获取传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
对于PUCCH格式1,通过半静态的RRC信令,获取传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
对于PUCCH格式1a:
通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分
为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;
所述根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,包括:
根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源统一编号;
对于PUCCH格式1a:
通过半静态RRC或动态DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
可选地,
在PUSCH与SRS或PUCCH与SRS需要同时发送的子帧上:
在相同的窄带上发送所述PUSCH与SRS或所述PUCCH与SRS;或者,
只发送所述PUSCH或PUCCH,放弃发送所述SRS;或者,
用于发送SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于发送任何PUSCH或PUCCH。
有鉴于此,为解决相关技术存在的技术问题,本发明还提供一种信道和信号传输方法,用于可进行机器类型通信MTC的基站,包括:
预定义或通过信令指示可用于发送上行物理信道和上行信号的资源区域;在所述资源区域内接收MTC终端发送的上行物理信道和上行信号;
其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
可选地,
所述预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或通过信令指示可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或通过信令指示可用于发送PUCCH的资源区域为系统带宽中的确定的NPUCCH个PUCCH子带;
预定义或通过信令指示可用于发送SRS的资源区域为系统带宽中的确定的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括一个或连续多个的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
可选地,
对于时分双工TDD系统,所述NPUSCH个PUSCH子带与可用于发送下行物理信道的资源区域所包括的子带所占的资源相同。
可选地,
所述信令为系统信息块SIB信令。
可选地,
所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
可选地,
所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
可选地,
还包括:预定义或通过UE专有信令,指示所述NSRS个SRS子带中的一个SRS子带来发送当前SRS信号。
可选地,
所述NPUCCH等于1或2。
可选地,
所述NPUCCH大于1;
所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,
所述NPUCCH等于1,
所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源数。
可选地,
所述NPUCCH等于2;
所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
可选地,
还包括:通过UE专有信令和/或增强的控制信道单元ECCE资源,指示所述NPUCCH个PUCCH子带中所包含的所有PUCCH资源中的一个来传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
不同子带的PUCCH资源统一编号或独立编号;
所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错的进行编号。
可选地,
不同PUCCH子带的PUCCH格式2/2a资源独立编号;
对于PUCCH格式2或格式2a,通过半静态的RRC信令,指示传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
对于PUCCH格式1,通过半静态的RRC信令,指示传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号,
对于PUCCH格式1a:
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接指示传输PUCCH格式1a有关的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;
所述根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,包括:
根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源统一编号;
对于PUCCH格式1a:
通过半静态RRC或动态DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
可选地,
在PUSCH与SRS或者PUCCH与SRS需要同时接收的子帧上:
在相同的窄带上接收所述PUSCH与SRS或所述PUCCH与SRS;或者,
只接收所述PUSCH或PUCCH,放弃接收所述SRS;或者,
用于接收SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于接收任何PUSCH或PUCCH。
有鉴于此,为解决相关技术存在的技术问题,本发明还提供了一种机器类型通信MTC终端,包括:
第一获取单元,设置成:预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域;
发送单元,设置成:在所述资源区域内发送所述上行物理信道和上行信号;
其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
可选地,
所述第一获取单元预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或根据接收的信令,获取可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或根据接收的信令,获取可用于发送PUCCH的资源区域为系统带宽中确定的NPUCCH个PUCCH子带;以及
预定义或根据接收的信令,获取可用于发送SRS的资源区域为系统带宽中确定的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括至少一个或多个连续的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
可选地,
对于时分双工TDD系统,所述第一获取单元获取的所述NPUSCH个PUSCH子带与可用于接收下行物理信道的资源区域所包括的子带所占资源相同。
可选地,
所述第一获取单元接收的信令为系统信息块SIB信令。
可选地,
所述第一获取单元获取的所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
可选地,
所述第一获取单元获取的所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS
个SRS子带。
可选地,
所述第一获取单元获取的所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
可选地,
还包括第二获取单元,设置成:预定义或根据接收的UE专有信令,从所述NSRS个SRS子带中确定一个SRS子带以发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
所述第一获取单元获取的所述NPUCCH等于1或2。
可选地,
所述第一获取单元获取的所述NPUCCH大于1,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,
所述第一获取单元获取的所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述第一获取单元获取的所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述第一获取单元获取的所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
可选地,
还包括第三获取单元,设置成:根据接收的UE专有信令和/或增强的控制信道单元ECCE资源,获取所述NPUCCH个PUCCH子带所包含的所有PUCCH资源中的一个以传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
不同PUCCH子带的PUCCH资源统一编号或独立编号,其中,所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
可选地,
不同PUCCH子带的PUCCH格式2/2a资源独立编号;
所述第三获取单元对于PUCCH格式2或格式2a,通过半静态的RRC信令,获取传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三获取单元对于PUCCH格式1,通过半静态的RRC信令,获取传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三获取单元对于PUCCH格式1a:
通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;
所述第三获取单元根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,包括:
根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源统一编号;
所述第三获取单元对于PUCCH格式1a:
通过半静态RRC或动态DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
可选地,
所述发送单元在PUSCH与SRS或者PUCCH与SRS需要同时发送的子帧上:
在相同的窄带上发送所述PUSCH与SRS或者发送所述PUCCH与SRS;或者,
只发送所述PUSCH或PUCCH,放弃发送所述SRS;或者,
用于发送SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于发送任何PUSCH或PUCCH。
有鉴于此,为解决相关技术存在的技术问题,本发明又提供了一种可进行机器类型通信MTC的基站,包括:
第一指示单元,设置成:预定义或通过信令指示可用于发送上行物理信道和上行信号的资源区域;
接收单元,设置成:在所述资源区域内接收MTC终端发送的上行物理信道和上行信号;
其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
可选地,
所述第一指示单元预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或通过信令指示可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或通过信令指示可用于发送PUCCH的资源区域为系统带宽中的确定的NPUCCH个PUCCH子带;
预定义或通过信令指示可用于发送SRS的资源区域为系统带宽中的确定
的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括一个或连续多个的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
可选地,
对于时分双工TDD系统,所述第一指示单元指示的NPUSCH个PUSCH子带与可用于发送下行物理信道的资源区域所包括的子带所占的资源相同。
可选地,
所述第一指示单元通过系统信息块SIB信令指示可用于发送上行物理信道和上行信号的资源区域。
可选地,
所述第一指示单元指示的所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
可选地,
所述第一指示单元指示的所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带。
可选地,
所述第一指示单元指示的所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
可选地,
还包括第二指示单元,设置成:预定义或通过UE专有信令,指示所述NSRS个SRS子带中的一个SRS子带来发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
所述第一指示单元指示的所述NPUCCH等于1或2。
可选地,
所述第一指示单元指示的所述NPUCCH大于1,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,
所述第一指示单元指示的所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源数。
可选地,
所述第一指示单元指示的所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述第一指示单元指示的所述NPUCCH个PUCCH子带与物理随机接入信
道PRACH子带没有重叠。
可选地,
还包括第三指示单元,设置成:通过UE专有信令和/或增强的控制信道单元ECCE资源,指示所述NPUCCH个PUCCH子带中所包含的所有PUCCH资源中的一个来传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
不同子带的PUCCH资源统一编号或独立编号;其中,所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
可选地,
不同PUCCH子带的PUCCH格式2/2a资源独立编号;
所述第三指示单元对于PUCCH格式2或格式2a,通过半静态的RRC信令,指示传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三指示单元对于PUCCH格式1,通过半静态的RRC信令,指示传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三指示单元对于PUCCH格式1a:
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据
的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接指示传输PUCCH格式1a有关的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;
所述第三指示单元根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,包括:
根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源统一编号;
所述第三指示单元对于PUCCH格式1a:
通过半静态RRC或动态DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
可选地,
在PUSCH与SRS或者PUCCH与SRS需要同时接收的子帧上:
在相同的窄带上接收所述PUSCH与SRS或者接收PUCCH与SRS;或者,
只接收所述PUSCH或PUCCH,放弃接收所述SRS;或者,
用于接收SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于接收任何PUSCH或PUCCH。
上述技术方案通过预定义或根据接收的信令获取可用于发送上行物理信道和上行信号的资源区域,并且在所述资源区域内发送所述上行物理信道和上行信号的方法,确保了上行传输带宽减少的MTC终端的各上行物理信道和上行信号的正常传输,并且可以避免了传输性能的较大损失,以及对非MTC类型终端数据传输的较大影响。
附图概述
图1为本发明实施例一的信道和信号传输方法的流程图;
图2a和图2b为可用于发送PUSCH的资源区域的2个示例的示意图;
图3a和图3b为包含于4个PUSCH子带中的可用于传统SRS传输且大小等于4个PRB资源的所有SRS子带的2个示例的示意图;
图4a和图4b为包含于4个PUSCH子带中的两个PUCCH子带的2个示例的示意图;
图5为在任一PUCCH子带内PUCCH格式1/1a与PUCCH格式2/2a资源划分的示意图;
图6为不同PUCCH子带的PUCCH资源独立编号的示意图;
图7a和图7b为不同PUCCH子带的PUCCH资源统一编号的2个示例的示意图;
图8为将ECCE进行分组以使其对应不同PUCCH子带的示意图。
图9为本发明实施例一MTC终端的模块图;
图10为本发明实施例二信道和信号传输方法的流程图;
图11为本发明实施例二可用于MTC的基站的模块图。
本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互任意组合。
实施例一
本实施例涉及一种信道和信号传输的方法,用于机器类型通信MTC终端,如图1所示,其流程包括:
步骤110,预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域;
步骤120,在所述资源区域内发送所述上行物理信道和上行信号。
其中,所述上行物理信道和上行信号包括:
物理上行共享信道(Physical Uplink Shared Channel,简称PUSCH);
物理上行控制信道(Physical Uplink Control Channel,简称PUCCH);
以及,探测参考信号(Sounding Reference Signal,简称SRS)。
其中,在本发明上下文中,如无特别说明,终端(UE)的类型是MTC终端(也称为带宽减少MTC终端)。另外,没有特别指出的情况下,文中的PUSCH、PUCCH和SRS均指用于MTC的PUSCH、PUCCH和SRS。
本实施例中,所述预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或根据接收的信令,获取可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或根据接收的信令,获取可用于发送PUCCH的资源区域为系统带宽中确定的NPUCCH个PUCCH子带;以及
预定义或根据接收的信令获取可用于发送SRS的资源区域为系统带宽中确定的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括至少一个或多个连续的物理资源块(Physical Resource Block,简称PRB)资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。上述“系统带宽中确定的NPUSCH个PUSCH子带”,是表示该NPUSCH个PUSCH子带在系统带宽中的位置已确定,上述“系统带宽中确定的NPUCCH个PUCCH子带”和“系统带宽中确定的NSRS个SRS子带”的含义同此。
可选地,对于时分双工(Time Division Duplex,简称TDD)系统,所述NPUSCH个PUSCH子带与可用于接收下行物理信道的资源区域所包括的子带所占资源相同。此处的下行物理信道也是指用于MTC的下行物理信道。该方法利用了TDD系统中上下行信道的互易性,考虑到无线信道的频域选择性,适用于下行传输的资源区域通常也适用于上行传输。
可选地,所述接收的信令为系统信息块SIB信令。
可选地,所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数(在上边带和下边带预留的PRB资源的个数相同),NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
由于特有的业务特性和/或窄带的限制,带宽减少MTC终端的数据包大小通常是较小的,所以其占用的PRB资源个数通常不会很大。上述索引的分配方法可以尽可能的使带宽减少MTC终端所发送的占用较少PRB资源个数的PUSCH尽可能的靠近上下边带以减少整个上行PUSCH数据区域的资源碎片或分段,从而避免或减轻了对非MTC终端类型PUSCH调度的较大影响。
在一个示例中,假定NPUSCH和MPUSCH分别等于4和6,NNormal-PUCCH和NTotal-PRB分别等于5和100。如图2a所示,4个PUSCH子带物理上连续,并且该4个子带靠近下边带。具体地,该4个子带所占的第1个PRB资源的索引是5(NNormal-PUCCH=5)或71(NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH=71),图中示出的是5。在另一示例中,如图2b所示,4个PUSCH子带物理上不连续,该4个子带分为2个组且分别靠近上边带和下边带,每个子带组包括2个物理连续的子带,具体地,第一个子带组所占的第1个PRB资源的索引分别是5(NNormal-PUCCH=5),第二个子带组所占的第1个PRB资源的索引为83(NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH=100-5-2×6=83)。
考虑到上行授予属于跨子帧调度类型,所以PUSCH所占的确定资源可以是在上述NPUSCH个PUSCH子带范围内的任意物理连续的PRB资源,只是物理连续的PRB资源的个数不能超过MTC终端支持的窄带大小。可选地,所述NSRS个SRS子带包含于所述NPUSCH个PUSCH子带中,每个SRS子带包括4个PRB资源。也即,所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输的大小等于4的所有SRS子带中的NSRS个SRS子带。此处的“可用于传统SRS传输”指可用于普通终端(指非MTC终端)的SRS传输。
可选地,在所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组的情况下(其中每个子带组所包括的子带物理连续),所述两个或两个以上子带组中包括所述NSRS个SRS子带中的至少1个。
通过限制所述NSRS个SRS子带始终配置为或默认为所述NPUSCH个
PUSCH子带中可用于传统SRS传输的大小为4个PRB资源的所有子带中的NSRS个子带,保证了带宽减少MTC终端发送的SRS和传统或相关SRS的对齐,尽可能地避免了MTC终端SRS和传统SRS的冲突问题,并且具有较好的后向兼容性,引入的调度器复杂度也相对较低。其中,用于发送传统SRS或带宽减少MTC终端的SRS的正交频分复用(Orthogonal Frequency Division Multiplexing,简称OFDM)符号都是子帧的最后一个OFDM符号。
在一个示例中,系统带宽共包括12个大小为4的SRS子带,这些SRS子带全部可以用于传统SRS传输。具体地,如图3a所示,可发送PUSCH的子带为4个并且被分为2个子带组,每个子带组包括2个物理连续PUSCH子带(子带在时域上是连续的,但为了同时表示SRS子带以及发送SRS的OFDM符号,图中只示出了PUSCH子带除去发送SRS的OFDM符号的余下部分),在每个PUSCH子带组范围内,存在2个可以用于传统SRS传输的SRS子带(斜纹填充所示,同样,SRS子带在时域上也是连续的,图中只示出了SRS子带中用于发送SRS的OFDM符号部分),此时,可用于带宽减少MTC终端的SRS传输的子带可以是第一PUSCH子带组(包括第一PUSCH子带和第二PUSCH子带)范围内2个可用于传统SRS传输的SRS子带中的至少1个,以及第二PUSCH子带组(包括第三PUSCH子带和第四PUSCH子带)范围内2个可用于传统SRS传输的SRS子带中的至少1个。类似地,在另一示例中,如图3b所示,可用于发送PUSCH的PUSCH子带为4个并且物理连续,在该4个物理连续的PUSCH子带范围内,存在4个可以用于传统SRS传输的SRS子带(斜纹填充所示),此时,可用于带宽减少MTC终端的SRS传输的子带可以是上述4个可以用于传统SRS传输的SRS子带中的至少1个。
可选地,上述方法还包括:预定义或根据接收的UE专有信令,从所述NSRS个SRS子带中确定一个SRS子带以发送当前SRS信号。其中,在不同的SRS发送子帧或OFDM符号上,属于上述NSRS个SRS子带中的相同或不同的SRS子带可以被使用。该UE专有信令不是上述步骤110中用于指示资源区域的信令,该UE专有信令包括:动态下行控制信息(Downlink Control Information,简称DCI)信令和/或半静态的射频资源控制(Radio Resource Control,简称RRC)信令。
可选地,所述NPUCCH等于1或2;
可选地,所述NPUCCH大于1,
所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,所述NPUCCH等于1,
所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
类似于MTC终端发送的PUSCH,该索引确定方式尽可能的使带宽减少MTC终端所发送的PUCCH也靠近上边带或下边带以减少整个上行PUSCH数据区域的资源碎片或分段,从而也避免或减轻了对非MTC终端类型PUSCH调度的较大影响。
可选地,所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源。在一个示例中,如图4a所示,可用于发送PUSCH的资源区域包括4个物理连续或不连续的子带,假定所述MPUCCH小于所述MPUSCH,此时第一个PUCCH子带(斜纹填充所示)占用所述4个PUSCH子带中最低频率的MPUCCH个PRB资源,第二个PUCCH子带占用所述4个PUSCH子带中最高频率的MPUCCH个PRB资源。在另一示例中,如图4b所示,在所述NPUSCH个PUSCH子带分为两个子带组且所述两个子带组分别靠近上边带和下边带的情况下,所述两个PUCCH子带(斜纹填充所示)也将靠近上边带和下边带。该方法通过最大化两个PUCCH子带的频域间隔,获取了相对较大的PUCCH的频率选择性调度增益。另外,如图4b所示方法同样可减少整个上行PUSCH数据区域的资源碎片或分段,从而避免或减轻对非MTC终端类型PUSCH调度的较大影响。
可选地,所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。具体地,可以设置所述NPUCCH个PUCCH子带中的任意一个与所
述PRACH子带存在确定的偏置,所述NPUCCH个PUCCH子带分别对应于NPUCCH个不同的偏置。上述方法可以完全避免MTC终端所发送的PUCCH与PRACH信号之间的冲突。
位于任一PUCCH子带中PUCCH资源包括两种类型:PUCCH格式1/1a资源和PUCCH格式2/2a资源;PUCCH格式1/1a资源用于传输PUCCH格式1或格式1a数据,PUCCH格式1用于承载调度请求(Scheduling Request简称SR),而PUCCH格式1a用于承载混合自动重复请求(Hybrid Automatic Repeated Request,简称HARQ)反馈/确认信息;其中,PUCCH格式2/2a资源用于传输PUCCH格式2或格式2a数据,PUCCH格式2用于承载信道质量指示(Channel Quality Indication,简称CQI)信息,而PUCCH格式2a用于同时承载CQI和HARQ反馈/确认信息。
不同的PUCCH格式1/1a资源或不同的PUCCH格式2/2a资源可以占用相同的或不同的PRB资源(即在PUCCH子带中PRB资源),并且PUCCH格式1/1a资源与PUCCH格式2/2a资源除占用不同的PRB资源以外,也可以占用相同PRB资源;当不同的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源占用相同PRB资源时,不同PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是通过不同的正交码/序列相互区分(码分)。资源编号并不等价于PRB的编号,一个PRB可以包括多个PUCCH资源。
如图5所示,任一个PUCCH子带共包括QPUCCH
(2)个PUCCH格式2/2a资源以及QPUCCH
(1)个PUCCH格式1/1a资源,并且上述两种类型的资源在该PUCCH子带内的编号分别是0至QPUCCH
(2)-1以及0至QPUCCH
(1)-1;正如前文所述,在上述QPUCCH
(2)个PUCCH格式2/2a和QPUCCH
(1)个PUCCH格式1/1a资源中的不同PUCCH资源可占用相同或不同的PRB资源。
可选地,通过接收的UE专有信令和/或增强的控制信道单元(Enhanced Control Channel Element,简称ECCE)资源,获取所述NPUCCH个PUCCH子带所包含的所有PUCCH资源中的一个以传输PUCCH数据。该处的UE专有信令不同于步骤110接收的用于指示资源区域的信令,而是用于指示确定的PUCCH资源。
其中,上述ECCE是构成增强物理下行控制信道(Enhanced Physical
Downlink Control Channel,简称EPDCCH)的最小资源单位。所述EPDCCH至少用于承载控制物理下行共享信道(Physical Downlink Shared Channel,简称PDSCH)传输的DCI信息(例如资源分配和调制编码方式等)。在MTC终端下行射频带宽减少的情况下,MTC终端无法接收PDCCH,只能够接收EPDCCH以获取相应的DCI信息,所以PDSCH与EPDCCH是一一对应的,即每一次接收PDSCH前,相应的EPDCCH需要预先被接收;由于每一次PDSCH传输都存在相应的上行HARQ反馈/确认与其对应,而正如前文所述HARQ反馈/确认是承载于PUCCH格式1a中的,由此可以说通常EPDCCH与PUCCH格式1a也是一一对应的;所以根据构成EPDCCH的上述ECCE资源隐式地确定PUCCH格式1a资源是可行的,具体对应关系如下文所述。可选地,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
其中,在本发明上下文中,如无特别说明,EPDCCH是控制MTC终端下行PDSCH传输的EPDCCH,EPDCCH控制区域是可用于传输上述EPDCCH的下行资源区域。所述EPDCCH总是占用所述EPDCCH控制区域中的部分ECCE资源。
其中,对于PUCCH格式1a,与其它周期性传输的PUCCH格式不同,它属于突发性传输。所以,如果上述动态的DCI信令被用于获取确定的PUCCH格式1/1a资源,虽然灵活性较高,但为了确保资源利用效率或容量,大量额外的下行控制开销可能被导致;如果上述半静态的RRC信令被用于获取所述确定的PUCCH格式1/1a资源,由于其半静态的属性,从而可能无法实现信令的动态配置,所以MTC终端必须相对长时间的占用所述确定的PUCCH格式1/1a资源,这降低了资源利用效率。当然也可以通过调度器的灵活调度去尽量的避免资源利用效率的较大的降低,但这提高了所述调度器的额外复杂度。考虑到上述原因,根据构成EPDCCH的ECCE资源隐式地确定PUCCH格式1/1a资源与其它方法相比较具有一定的优势。
不同PUCCH子带的PUCCH资源统一编号或独立编号,具体方式可以由协议/标准定义。
其中,独立地对不同PUCCH子带的PUCCH资源进行编号时,为获取确定的PUCCH资源,必须预先获取所述PUCCH资源所在的子带的索引以及子带内的PUCCH资源索引;统一对不同PUCCH子带的PUCCH资源进行编号时,为获取确定的PUCCH资源,必须预先获取所述PUCCH资源在全局PUCCH资源范围内的索引,所述全局PUCCH资源指所有PUCCH子带包括的所有PUCCH资源。
可选地,不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号时,不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
在一个示例中,如图6所示,用于发送PUCCH的资源区域包括2个PUCCH子带,每个子带包括QPUCCH
(x)个PUCCH资源,在上述2个PUCCH子带的PUCCH资源独立编号的情况下,每个子带包括的QPUCCH
(x)个PUCCH资源的索引为0至QPUCCH
(x)-1;其中,所述PUCCH资源可以是PUCCH格式2/2a或PUCCH格式1/1a资源(即x等于1或2)。
在另一示例中,用于发送PUCCH的资源区域包括2个PUCCH子带,每个子带包括QPUCCH
(x)个PUCCH资源,在上述2个子带的PUCCH资源统一编号的情况下,如图7a所示,第一个PUCCH子带包括的PUCCH资源的索引为0至QPUCCH
(x)-1,第二个PUCCH子带包括的PUCCH资源的索引为QPUCCH
(x)至2QPUCCH
(x)-1。在又一示例中,如图7b所示,第一个PUCCH子带包括的PUCCH资源的索引为0、2、4、6、8、……、2QPUCCH
(x)-4、QPUCCH
(x)-2,第二个PUCCH子带包括的PUCCH资源的索引为:1、3、5、7、9、……、2QPUCCH
(x)-3、QPUCCH
(x)-1。该示例实现了不同PUCCH子带的PUCCH资源相互交错的进行PUCCH资源的编号。
所谓交错的编号是指:将每个子带的PUCCH资源分为X(X为大于1正整数)个组,并按照以下次序进行全局范围的编号:
第1子带第1资源组、第2子带第1资源组、……、第Y子带第1资源组,第1子带第2资源组、第2子带第2资源组、……、第Y子带第2资源组,……,第1子带第X资源组、第2子带第X资源组、……、第Y子带第X资源组;其中,Y表示PUCCH子带数。
图7a和图7b中的索引是在全局PUCCH资源范围内的索引,类似地,PUCCH资源可以是PUCCH格式2/2a资源和/或PUCCH格式1/1a资源。
可选地,当不同PUCCH子带的PUCCH格式2/2a资源独立编号时,
对于PUCCH格式2或格式2a,通过半静态的RRC信令,获取传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,当不同PUCCH子带的PUCCH格式1/1a资源独立编号时,
对于PUCCH格式1,通过半静态的RRC信令,
获取传输PUCCH格式1有关的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,当不同PUCCH子带的PUCCH格式1/1a资源独立编号时,
对于PUCCH格式1a,采用以下方式之一获取确定的PUCCH格式1/1a资源:
方式一,通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;
方式二,通过半静态的RRC信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;
方式三,通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及,根据ECCE资源间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引。具体地,可以根据以下等式获取上述子带内的PUCCH格式1/1a资源的索引:
其中,nPUCCH
(1)表示子带内PUCCH格式1/1a资源的索引,OUE是UE专有额外偏置,f(nECCE,p)取决于EPDCCH是属于集中式(Localized)还是属于分布式类型(Distributed),具体可以取值根据以下等式确定:
其中,nECCE是EPDCCH占用的第一个ECCE的索引,N是每个PRB包括的ECCE数,kp是根据用于解调EPDCCH的解调参考信号(Demodulation Reference Signal,简称DMRS)端口决定,且满足:
kp={0,1,2,3}if N=4;kp={0,1}if N=2。
方式四,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
具体地,可将EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个组(NPUCCH表示PUCCH子带数),并且上述NPUCCH个组分别与NPUCCH个PUCCH子带一一对应。根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,就可以确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
例如,如图8所示,假定PUCCH子带为2个,与MTC终端有关的EPDCCH控制区域共包括NECCE个ECCE资源;其中,属于第一ECCE组的编号为4K和4K+1的ECCE资源对应第1个PUCCH子带内的PUCCH格式1/1a资源;属于第二ECCE组的编号为4K+2和4K+3的ECCE资源对应于第2个PUCCH子带内的PUCCH格式1/1a资源;K为大于0小于等于ceiling(NECCE/4)的正整数,ceiling表示向上取整数的操作;
如果为MTC终端分配资源的EPDCCH所占用的第一个ECCE位于第一ECCE组,则相应的PUCCH格式1/1a资源位于第一个PUCCH子带;类似地,如果为MTC终端分配资源的EPDCCH所占用的第一个ECCE位于第二ECCE组,则相应的PUCCH格式1/1a资源位于第二个PUCCH子带。
具体地,可以根据以下等式获取相应子带内的PUCCH格式1/1a资源的索引:
其中,nPUCCH
(1)表示子带内PUCCH格式1/1a资源的索引,OUE是UE专有额外偏置,f(nECCE,p)取决于EPDCCH是属于集中式(Localized)还是属于分布式类型(Distributed),具体取值可以根据以下等式确定:
其中,nECCE是EPDCCH占用的第一个ECCE在其所在ECCE组内的索引,例如,如图8所示,对于索引为5并且属于第一ECCE组的ECCE,它在上述第一ECCE组内的索引是3(从0开始计数);N是每一个PRB包括的ECCE数,kp是根据用于解调EPDCCH的DMRS端口决定,并且满足:
kp={0,1,2,3}if N=4;kp={0,1}if N=2。
可选地,当不同PUCCH子带的PUCCH格式2/2a资源统一编号时,对于PUCCH格式2或格式2a,通过半静态RRC信令,获取传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源的索引。
可选地,当不同PUCCH子带的PUCCH格式1/1a资源统一编号时,对于PUCCH格式1,通过半静态RRC信令,获取传输PUCCH格式1数据的PUCCH格式1/1a资源的索引。
可选地,当不同PUCCH子带的PUCCH格式1/1a资源统一编号时,对于PUCCH格式1a,通过半静态RRC或动态DCI信令,获取与所述PUCCH格式1a有关的PUCCH格式1/1a资源的索引;或者,根据ECCE资源间接获取与所述PUCCH格式1a有关的PUCCH格式1/1a资源的索引,具体地,可以根据以下等式获取上述PUCCH格式1/1a资源的索引:
其中,nPUCCH
(1)表示全局的PUCCH格式1/1a资源的索引,OUE是UE专有额外偏置,f(nECCE,p)取决于EPDCCH是属于集中式(Localized)还是属于分布式类型(Distributed),具体可以取值根据以下等式确定:
其中,nECCE是EPDCCH占用的第一个ECCE的索引,N是每个PRB包括的ECCE数,kp是根据用于解调EPDCCH的DMRS端口决定,并且满足:
kp={0,1,2,3}if N=4;kp={0,1}if N=2。
上述EPDCCH和ECCE均是指用于MTC的EPDCCH和ECCE。需要说明的是上述ECCE资源可以但并不局限于EPDCCH占用的第一个ECCE资源,也可以是所述EPDCCH所占用的其它ECCE资源。考虑到资源分配的复杂度,与其它ECCE资源相比,第一个ECCE资源是最优的。
在不同子带的PUCCH格式1/1a资源统一编号,并根据ECCE资源间接获取传输PUCCH格式1a数据PUCCH格式1/1a资源的索引的情况下,为获取较高的EPDCCH和上述PUCCH格式1/1a资源在不同PUCCH子带的调度灵活性,不同PUCCH子带的PUCCH格式1/1a资源优选使用前文所述相互交错的方式进行PUCCH格式1/1a资源的编号;此时,更多的具有相邻索引的ECCE资源可以对应不同子带的PUCCH格式1/1a资源。
可选地,在PUSCH与SRS或PUCCH与SRS需同时发送的子帧上,
在相同的窄带上发送所述PUSCH与SRS或所述PUCCH与SRS,或者只是发送所述PUSCH或PUCCH,放弃发送所述SRS。这样可以避免MTC终端射频组件在不同频带之间的转换并且尽可能保持PUSCH的频率选择性调度,从而避免了额外的射频转换成本和过大的性能损失。或者,用于发送SRS的OFDM符号前的至少一个OFDM符号不再被用于发送PUSCH或PUCCH数据,即上述至少一个OFDM符号被空置不用,以预留为MTC终端在不同频带发射的射频转换间隔。
为增强MTC终端的上行覆盖,PUSCH或PUCCH的重复传输和频域的跳频技术可以被开启;类似于上述的OFDM符号被空置不用的方法,如果在重复传输期间的相邻子帧的频域资源由于跳频的存在需要发生改变,则上述相邻子帧中的一个,或其中的至少一个OFDM符号也可以被空置不用,以预留为MTC终端在不同频带发射的射频转换间隔。
相应地,本实施例还提供了一种MTC终端,如图9所示,包括:
第一获取单元10,设置成:预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域;
发送单元20,设置成:在所述资源区域内发送所述上行物理信道和上行信号;
其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
可选地,
所述第一获取单元预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或根据接收的信令,获取可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或根据接收的信令,获取可用于发送PUCCH的资源区域为系统带宽中确定的NPUCCH个PUCCH子带;以及
预定义或根据接收的信令,获取可用于发送SRS的资源区域为系统带宽中确定的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括至少一个或多个连续的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
可选地,
对于时分双工TDD系统,所述第一获取单元获取的所述NPUSCH个PUSCH
子带与可用于接收下行物理信道的资源区域所包括的子带所占资源相同。
可选地,
所述第一获取单元接收的信令为系统信息块SIB信令。
可选地,
所述第一获取单元获取的所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
可选地,
所述第一获取单元获取的所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带。
可选地,
所述第一获取单元获取的所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
可选地,
还包括第二获取单元,设置成:预定义或根据接收的UE专有信令,从
所述NSRS个SRS子带中确定一个SRS子带以发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
所述第一获取单元获取的所述NPUCCH等于1或2。
可选地,
所述第一获取单元获取的所述NPUCCH大于1,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,
所述第一获取单元获取的所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述第一获取单元获取的所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述第一获取单元获取的所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
可选地,
还包括第三获取单元,设置成:根据接收的UE专有信令和/或增强的控制信道单元ECCE资源,获取所述NPUCCH个PUCCH子带所包含的所有PUCCH资源中的一个以传输PUCCH数据,其中,所述UE专有信令包括:
动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
不同PUCCH子带的PUCCH资源统一编号或独立编号,其中,所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。编号的具体方法可以隐含在终端的配置信息如配置的算法中。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
可选地,
不同PUCCH子带的PUCCH格式2/2a资源独立编号;
所述第三获取单元对于PUCCH格式2或格式2a,通过半静态的RRC信令,获取传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三获取单元对于PUCCH格式1,通过半静态的RRC信令,获取传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三获取单元对于PUCCH格式1a:
通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者
通过半静态的RRC信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,获取传
输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者
通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者
根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;
所述第三获取单元根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,包括:
根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源统一编号;
所述第三获取单元对于PUCCH格式1a:
通过半静态RRC或动态DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者
根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
可选地,
所述发送单元在PUSCH与SRS或者PUCCH与SRS需要同时发送的子帧上:
在相同的窄带上发送所述PUSCH与SRS或者发送所述PUCCH与SRS;或者
只发送所述PUSCH或PUCCH,放弃发送所述SRS;或者
用于发送SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于发送任何PUSCH或PUCCH。
实施例二
本实施例涉及一种信道和信号传输方法,用于可进行MTC的基站,如图10所示,包括:
步骤210,预定义或通过信令指示可用于发送上行物理信道和上行信号的资源区域;
步骤220,在所述资源区域内接收MTC终端发送的上行物理信道和上行信号。
其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
可选地,所述预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或通过信令指示可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或通过信令指示可用于发送PUCCH的资源区域为系统带宽中的确定的NPUCCH个PUCCH子带;以及
预定义或通过信令指示可用于发送SRS的资源区域为系统带宽中的确定的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括一个或连续多个的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
可选地,对于时分双工TDD系统,所述NPUSCH个PUSCH子带与可用于发送下行物理信道的资源区域所包括的子带所占的资源相同。该方法利用了TDD系统中上下行信道的互易性,考虑到无线信道的频域选择性,适用于下行传输的资源区域通常也适用于上行传输。
可选地,所述信令为系统信息块SIB信令。
可选地,所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为相关LTE系统支持UE类型预留的用于PUCCH传输的PRB资源数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源数;或者,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
由于特有的业务特性和/或窄带的限制,带宽减少MTC终端的数据包大小通常是较小的,所以其占用的PRB资源数通常不会很大。上述索引确定方法可以尽可能的使带宽减少MTC终端所发送的占用较少PRB数的PUSCH尽可能的靠近上下边带以减少整个上行PUSCH数据区域的资源碎片或分段,从而避免或减轻了对非MTC终端类型PUSCH调度的较大影响。
考虑到上行授予属于跨子帧调度类型,所以PUSCH所占的确定资源可以是在上述NPUSCH个PUSCH子带范围内的任意物理连续的PRB资源,只是上述连续的PRB资源数不能超过UE支持的窄带大小。
可选地,所述NSRS个SRS子带包含于所述NPUSCH个PUSCH子带中,每个SRS子带包括4个PRB资源。也即,所述NSRS个SRS子带为所述NPUSCH
个PUSCH子带中可用于传统SRS传输的大小等于4个PRB资源的所有SRS子带中的NSRS个SRS子带。
可选地,所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
通过限制所述NSRS个SRS子带始终配置为或默认为所述NPUSCH个PUSCH子带中可用于传统SRS传输的大小等于4个PRB资源的所有子带中的NSRS个子带,保证了带宽减少MTC终端发送的SRS和传统或相关SRS的对齐,尽可能地避免了带宽减少MTC终端发送的SRS和传统SRS的冲突问题,并且具有较好的后向兼容性,引入的调度器复杂度也相对较低。其中,用于发送传统SRS或带宽减少MTC终端的SRS的OFDM符号都是子帧的最后一个OFDM符号。
可选地,预定义或通过UE专有信令,指示所述NSRS个SRS子带中的一个SRS子带来发送当前SRS信号。该UE专有信令包括:动态下行控制信息(Downlink Control Information,简称DCI)信令和/或半静态的射频资源控制(Radio Resource Control,简称RRC)信令。
可选地,所述NPUCCH等于1或2;
可选地,当所述NPUCCH大于1时,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,当所述NPUCCH等于1时,所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。类似于MTC终端发送的PUSCH,该索引确定方式尽可能的使带宽减少MTC终端所发送的PUCCH也靠近上边带或下边带以减少整个上行PUSCH数据区域的资源碎片或分段,从而也避免或减轻了对非带宽减少MTC终端类型PUSCH调度的
较大影响。
可选地,当所述NPUCCH等于2时,
所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和最低频率的MPUCCH个PRB资源。根据上述方法,在所述NPUSCH个PUSCH子带分为两个子带组且所述两个子带组分别靠近上边带和下边带的情况下,所述两个PUCCH子带也将靠近上边带和下边带。该方法通过最大化两个PUCCH子带的频域间隔,获取了相对较大的PUCCH的频率选择性调度增益。另外,如图4b所示方法同样可减少整个上行PUSCH数据区域的资源碎片或分段,从而避免或减轻对非带宽减少MTC终端类型PUSCH调度的较大影响。
可选地,所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。具体地,可以设置所述NPUCCH个PUCCH子带中的任意一个与所述PRACH子带存在确定的偏置,所述NPUCCH个PUCCH子带分别对应于NPUCCH个不同的偏置。上述方法可以完全避免MTC终端所发送的PUCCH与PRACH信号之间的冲突。
可选地,上述方法还包括:
通过UE专有信令和/或增强的控制信道单元ECCE资源,指示所述NPUCCH个PUCCH子带中所包含的所有PUCCH资源中的一个来传输PUCCH数据。
其中,ECCE是构成EPDCCH的最小资源单位。EPDCCH至少用于承载控制PDSCH传输的DCI信息(例如资源分配和调制编码方式等)。在MTC终端下行射频带宽减少的情况下,MTC终端无法接收PDCCH,只能够接收EPDCCH以获取相应的DCI信息,所以PDSCH与EPDCCH是一一对应的,即每一次接收PDSCH前,相应的EPDCCH需要预先被接收;由于每一次PDSCH传输都存在相应的上行HARQ反馈/确认与其对应,而正如前文所述HARQ反馈/确认是承载于PUCCH格式1a中的,由此可以说通常EPDCCH与PUCCH格式1a也是一一对应的;所以根据构成EPDCCH的上述ECCE资源隐式确定PUCCH格式1a资源是可行的。
其中,对于PUCCH格式1a,与其它周期性传输的PUCCH格式不同,
它属于突发性传输。所以,如果上述动态的DCI信令被用于获取确定的PUCCH格式1a资源,虽然灵活性较高,但为了确保资源利用效率或容量,大量额外的下行控制开销可能被导致;如果上述半静态的RRC信令被用于获取所述确定的PUCCH格式1a资源,由于其半静态的属性,从而可能无法实现信令的动态配置,所以UE必须相对长时间的占用所述确定的PUCCH格式1a资源,这降低了资源利用效率;当然也可以通过调度器的灵活调度去尽量的避免资源利用效率的较大的降低,但这提高了所述调度器的额外复杂度。考虑到上述原因,根据构成EPDCCH的ECCE资源隐式地确定PUCCH格式1a资源与其它方法相比较具有一定的优势。
不同PUCCH子带的PUCCH资源统一编号或独立编号,具体方式可以在相关协议/标准中定义。所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。其中,独立地对不同PUCCH子带的PUCCH资源进行编号时,为获取确定的PUCCH资源,必须预先获取所述PUCCH资源所在的子带的索引以及子带内的PUCCH资源索引;统一对不同PUCCH子带的PUCCH资源进行编号时,为获取确定的PUCCH资源,必须预先获取所述PUCCH资源在全局PUCCH资源范围内的索引,所述全局PUCCH资源指所有PUCCH子带包括的所有PUCCH资源。
可选地,当不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号时,不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
可选地,当不同PUCCH子带的PUCCH格式2/2a资源独立编号时,
对于PUCCH格式2或格式2a,通过半静态的RRC信令,指示传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,当不同PUCCH子带的PUCCH格式1/1a资源独立编号时,
对于PUCCH格式1,通过半静态的RRC信令,指示传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH
格式1/1a资源的索引。
可选地,当不同PUCCH子带的PUCCH格式1/1a资源独立编号时,对于PUCCH格式1a:
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者
通过半静态的RRC信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者
根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;就可以根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
可选地,当不同子带的PUCCH格式2/2a资源统一编号时,
对于PUCCH格式2或格式2a,通过半静态RRC信令,指示传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源的索引。
可选地,当不同子带的PUCCH格式1/1a资源统一编号时,
对于PUCCH格式1,通过半静态RRC信令,指示传输PUCCH格式1数据的PUCCH格式1/1a资源的索引。
可选地,当不同子带的PUCCH格式1/1a资源统一编号时,对于PUCCH
格式1a:
通过半静态RRC或动态DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者
根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
可选地,在PUSCH与SRS或者PUCCH与SRS需要同时接收的子帧上,
在相同的窄带上接收所述PUSCH与SRS或者接收所述PUCCH与SRS,或者,只是接收所述PUSCH或PUCCH,放弃接收所述SRS,这可以避免MTC终端射频组件在不同频带之间的转换并且尽可能保持PUSCH的频率选择性调度,从而避免了额外的射频转换成本和过大的性能损失;或者,用于发送SRS的OFDM符号前的至少一个OFDM符号不再用于接收任何PUSCH或PUCCH数据,即上述的至少一个OFDM符号被空置不用,以预留为MTC终端在不同频带进行射频发射的转换间隔。为增强MTC终端的上行覆盖,PUSCH或PUCCH的重复传输和频域的跳频技术可以被开启;类似于上述的OFDM符号被空置不用的方法,如果在重复传输期间的相邻子帧的频域资源由于跳频的存在需要发生改变,则上述相邻子帧中的一个,或其中的至少一个OFDM符号也可以被空置不用,以预留为MTC终端在不同频带发射的射频转换间隔。
相应地,本实施例提供的可进行机器类型通信MTC的基站如图11所示,包括:
第一指示单元50,设置成:预定义或通过信令指示可用于发送上行物理信道和上行信号的资源区域;
接收单元60,设置成:在所述资源区域内接收MTC终端发送的上行物理信道和上行信号;
其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
可选地,
所述第一指示单元预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域,包括:
预定义或通过信令指示可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;
预定义或通过信令指示可用于发送PUCCH的资源区域为系统带宽中的确定的NPUCCH个PUCCH子带;
预定义或通过信令指示可用于发送SRS的资源区域为系统带宽中的确定的NSRS个SRS子带;
其中,所述PUSCH子带、PUCCH子带及SRS子带均包括一个或连续多个的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
可选地,
对于时分双工TDD系统,所述第一指示单元指示的NPUSCH个PUSCH子带与可用于发送下行物理信道的资源区域所包括的子带所占的资源相同。
可选地,
所述第一指示单元通过系统信息块SIB信令指示可用于发送上行物理信道和上行信号的资源区域。
可选地,
所述第一指示单元指示的所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,
所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:
NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH
(2)×MPUSCH,
其中,NPUSCH
(2)表示第二个PUSCH子带组包括的子带数。
可选地,
所述第一指示单元指示的所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带。
可选地,
所述第一指示单元指示的所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
可选地,
还包括第二指示单元,设置成:预定义或通过UE专有信令,指示所述NSRS个SRS子带中的一个SRS子带来发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
所述第一指示单元指示的所述NPUCCH等于1或2。
可选地,
所述第一指示单元指示的所述NPUCCH大于1,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
可选地,
所述第一指示单元指示的所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:
NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,
其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源数。
可选地,
所述第一指示单元指示的所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
可选地,
所述第一指示单元指示的所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
可选地,
还包括第三指示单元,设置成:通过UE专有信令和/或增强的控制信道单元ECCE资源,指示所述NPUCCH个PUCCH子带中所包含的所有PUCCH资源中的一个来传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
可选地,
不同子带的PUCCH资源统一编号或独立编号;其中,所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
可选地,
不同PUCCH子带的PUCCH格式2/2a资源独立编号;
所述第三指示单元对于PUCCH格式2或格式2a,通过半静态的RRC信令,指示传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三指示单元对于PUCCH格式1,通过半静态的RRC信令,指示传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源独立编号;
所述第三指示单元对于PUCCH格式1a:
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者
通过半静态的RRC信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者
通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,
根据ECCE资源,间接指示传输PUCCH格式1a有关的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
可选地,
将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;
所述第三指示单元根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,包括:
根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
可选地,
不同PUCCH子带的PUCCH格式1/1a资源统一编号;
所述第三指示单元对于PUCCH格式1a:
通过半静态RRC或动态DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者
根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
可选地,
在PUSCH与SRS或者PUCCH与SRS需要同时接收的子帧上:
在相同的窄带上接收所述PUSCH与SRS或者接收PUCCH与SRS;或者
只接收所述PUSCH或PUCCH,放弃接收所述SRS;或者
用于接收SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于接收任何PUSCH或PUCCH。
上述实施例一和实施例二描述的是同一系统中用于MTC的上行物理信道和上行信号的传输方法,实施例一是从终端侧描述,而实施例二是从基站侧描述。因而实施例二中上述优选方式的示例、算法及其他说明可以参见实施例一的相应描述及相应附图。
上述实施例一和实施例二中,PRB资源等价于相关LTE系统中时间上跨度一个子帧并且频率上跨度12个子载波的PRB对资源。
在UE上行传输带宽减少的情况下,上述实施方案通过预定义或根据信令如广播信令获取可用于发送上行物理信道/信号的资源区域,并且在所述资源区域内发送所述上行物理信道/信号的方法,确保了来自带宽减少UE的各上行物理信道/信号的正常传输,并且避免了传输性能的较大损失,以及对非MTC类型终端数据传输的较大影响。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序
来指令相关硬件完成,所述程序可以存储于计算机可读存储介质中,如只读存储器、磁盘或光盘等。可选地,上述实施例的全部或部分步骤也可以使用一个或多个集成电路来实现,相应地,上述实施例中的各模块/单元可以采用硬件的形式实现,也可以采用软件功能模块的形式实现。本发明不限制于任何特定形式的硬件和软件的结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
上述方案通过预定义或根据接收的信令获取可用于发送上行物理信道和上行信号的资源区域,并且在所述资源区域内发送所述上行物理信道和上行信号的方法,确保了上行传输带宽减少的MTC终端的各上行物理信道和上行信号的正常传输,并且可以避免了传输性能的较大损失,以及对非MTC类型终端数据传输的较大影响。因此本发明具有很强的工业实用性。
Claims (88)
- 一种信道和信号传输方法,用于机器类型通信MTC终端,包括:预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域;在所述资源区域内发送所述上行物理信道和上行信号;其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
- 如权利要求1所述的信道和信号传输方法,其中:所述预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域的步骤包括:预定义或根据接收的信令,获取可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;预定义或根据接收的信令,获取可用于发送PUCCH的资源区域为系统带宽中确定的NPUCCH个PUCCH子带;以及,预定义或根据接收的信令,获取可用于发送SRS的资源区域为系统带宽中确定的NSRS个SRS子带;其中,所述PUSCH子带、PUCCH子带及SRS子带均包括至少一个或多个连续的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
- 如权利要求2所述的信道和信号传输方法,其中:对于时分双工TDD系统,所述NPUSCH个PUSCH子带与可用于接收下行物理信道的资源区域所包括的子带所占资源相同。
- 如权利要求1或2所述的信道和信号传输方法,其中:所述接收的信令为系统信息块SIB信令。
- 如权利要求2或3所述的信道和信号传输方法,其中:所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH (2)×MPUSCH,其中,NPUSCH (2)表示第二个PUSCH子带组包括的子带数。
- 如权利要求2所述的信道和信号传输方法,其中:所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带。
- 如权利要求2或6所述的信道和信号传输方法,其中:所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
- 如权利要求2所述的信道和信号传输方法,该方法还包括:预定义或根据接收的UE专有信令,从所述NSRS个SRS子带中确定一个SRS子带以发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
- 如权利要求2所述的信道和信号传输方法,其中:所述NPUCCH等于1或2。
- 如权利要求2所述的信道和信号传输方法,其中:所述NPUCCH大于1,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
- 如权利要求2所述的信道和信号传输方法,其中:所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
- 如权利要求2所述的信道和信号传输方法,其中:所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
- 如权利要求2所述的信道和信号传输方法,其中:所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
- 如权利要求2所述的信道和信号传输方法,该方法还包括:根据接收的UE专有信令,和/或增强的控制信道单元ECCE资源,获取所述NPUCCH个PUCCH子带所包含的所有PUCCH资源中的一个以传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
- 如权利要求14所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH资源统一编号或独立编号;所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
- 如权利要求15所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错的进行编号。
- 如权利要求14或15所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式2/2a资源独立编号;对于PUCCH格式2或格式2a,通过半静态的RRC信令,获取传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
- 如权利要求14或15所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号;对于PUCCH格式1,通过半静态的RRC信令,获取传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求14或15所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号;对于PUCCH格式1a:通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据 的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求19所述的信道和信号传输方法,其中:将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;所述根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引的步骤包括:根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
- 如权利要求14或15所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源统一编号;对于PUCCH格式1a:通过半静态RRC或动态DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
- 如权利要求1或2所述的信道和信号传输方法,其中:在PUSCH与SRS或PUCCH与SRS需要同时发送的子帧上:在相同的窄带上发送所述PUSCH与SRS或所述PUCCH与SRS;或者,只发送所述PUSCH或PUCCH,放弃发送所述SRS;或者,用于发送SRS的正交频分复用OFDM符号前的至少一个OFDM符号不 再用于发送任何PUSCH或PUCCH。
- 一种信道和信号传输方法,用于可进行机器类型通信MTC的基站,包括:预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域;在所述资源区域内接收MTC终端发送的上行物理信道和上行信号;其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
- 如权利要求23所述的信道和信号传输方法,其中:所述预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域的步骤包括:预定义或通过信令指示可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;预定义或通过信令指示可用于发送PUCCH的资源区域为系统带宽中的确定的NPUCCH个PUCCH子带;预定义或通过信令指示可用于发送SRS的资源区域为系统带宽中的确定的NSRS个SRS子带;其中,所述PUSCH子带、PUCCH子带及SRS子带均包括一个或连续多个的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
- 如权利要求24所述的信道和信号传输方法,其中:对于时分双工TDD系统,所述NPUSCH个PUSCH子带与可用于发送下行物理信道的资源区域所包括的子带所占的资源相同。
- 如权利要求23或24所述的信道和信号传输方法,其中:所述信令为系统信息块SIB信令。
- 如权利要求24或25所述的信道和信号传输方法,其中:所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH (2)×MPUSCH,其中,NPUSCH (2)表示第二个PUSCH子带组包括的子带数。
- 如权利要求24所述的信道和信号传输方法,其中:所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
- 如权利要求24或28所述的信道和信号传输方法,其中:所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
- 如权利要求24所述的信道和信号传输方法,该方法还包括:预定义或通过UE专有信令,指示所述NSRS个SRS子带中的一个SRS子带来发送当前SRS信号。
- 如权利要求24所述的信道和信号传输方法,其中:所述NPUCCH等于1或2。
- 如权利要求24所述的信道和信号传输方法,其中:所述NPUCCH大于1;所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
- 如权利要求24所述的信道和信号传输方法,其中:所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源数。
- 如权利要求24所述的信道和信号传输方法,其中:所述NPUCCH等于2;所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
- 如权利要求24所述的信道和信号传输方法,其中:所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
- 如权利要求24所述的信道和信号传输方法,该方法还包括:通过UE专有信令和/或增强的控制信道单元ECCE资源,指示所述NPUCCH个PUCCH子带中所包含的所有PUCCH资源中的一个来传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
- 如权利要求36所述的信道和信号传输方法,其中:不同子带的PUCCH资源统一编号或独立编号;所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
- 如权利要求37所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错的进行编号。
- 如权利要求36或37所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式2/2a资源独立编号;对于PUCCH格式2或格式2a,通过半静态的RRC信令,指示传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
- 如权利要求36或37所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号;对于PUCCH格式1,通过半静态的RRC信令,指示传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求36或37所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号,对于PUCCH格式1a:通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接指示传输PUCCH格式1a有关的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求41所述的信道和信号传输方法,其中:将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;所述根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引的步骤包括:根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
- 如权利要求36或37所述的信道和信号传输方法,其中:不同PUCCH子带的PUCCH格式1/1a资源统一编号;对于PUCCH格式1a:通过半静态RRC或动态DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
- 如权利要求23或24所述的信道和信号传输方法,其中:在PUSCH与SRS或者PUCCH与SRS需要同时接收的子帧上:在相同的窄带上接收所述PUSCH与SRS或所述PUCCH与SRS;或者,只接收所述PUSCH或PUCCH,放弃接收所述SRS;或者,用于接收SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于接收任何PUSCH或PUCCH。
- 一种机器类型通信MTC终端,包括第一获取单元和发送单元,其中:所述第一获取单元设置成:预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域;所述发送单元设置成:在所述资源区域内发送所述上行物理信道和上行信号;其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
- 如权利要求43所述的MTC终端,其中:所述第一获取单元设置成按照如下方式预定义或根据接收的信令,获取可用于发送上行物理信道和上行信号的资源区域:预定义或根据接收的信令,获取可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;预定义或根据接收的信令,获取可用于发送PUCCH的资源区域为系统带宽中确定的NPUCCH个PUCCH子带;以及预定义或根据接收的信令,获取可用于发送SRS的资源区域为系统带宽中确定的NSRS个SRS子带;其中,所述PUSCH子带、PUCCH子带及SRS子带均包括至少一个或多个连续的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
- 如权利要求46所述的MTC终端,其中:对于时分双工TDD系统,所述第一获取单元获取的所述NPUSCH个PUSCH子带与可用于接收下行物理信道的资源区域所包括的子带所占资源相同。
- 如权利要求45或46所述的MTC终端,其中:所述第一获取单元接收的信令为系统信息块SIB信令。
- 如权利要求46或47所述的MTC终端,其中:所述第一获取单元获取的所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH (2)×MPUSCH,其中,NPUSCH (2)表示第二个PUSCH子带组包括的子带数。
- 如权利要求46所述的MTC终端,其中:所述第一获取单元获取的所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带。
- 如权利要求46或50所述的MTC终端,其中:所述第一获取单元获取的所述NPUSCH个PUSCH子带被分为两个或两个以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
- 如权利要求46所述的MTC终端,该终端还包括第二获取单元,所述第二获取单元设置成:预定义或根据接收的UE专有信令,从所述NSRS个SRS子带中确定一个SRS子带以发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制 RRC信令。
- 如权利要求46所述的MTC终端,其中:所述第一获取单元获取的所述NPUCCH等于1或2。
- 如权利要求46所述的MTC终端,其中:所述第一获取单元获取的所述NPUCCH大于1,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
- 如权利要求46所述的MTC终端,其中:所述第一获取单元获取的所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
- 如权利要求46所述的MTC终端,其中:所述第一获取单元获取的所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
- 如权利要求46所述的MTC终端,其中:所述第一获取单元获取的所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
- 如权利要求46所述的MTC终端,该终端还包括第三获取单元,所述第三获取单元设置成:根据接收的UE专有信令和/或增强的控制信道单元ECCE资源,获取所述NPUCCH个PUCCH子带所包含的所有PUCCH资源中的一个以传输PUCCH数据,其中,所述UE专有信令包括:动态的下 行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
- 如权利要求58所述的MTC终端,其中:不同PUCCH子带的PUCCH资源统一编号或独立编号,其中,所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
- 如权利要求59所述的MTC终端,其中:不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
- 如权利要求58或59所述的MTC终端,其中:不同PUCCH子带的PUCCH格式2/2a资源独立编号;所述第三获取单元对于PUCCH格式2或格式2a,通过半静态的RRC信令,获取传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
- 如权利要求58或59所述的MTC终端,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号;所述第三获取单元对于PUCCH格式1,通过半静态的RRC信令,获取传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求58或59所述的MTC终端,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号;所述第三获取单元对于PUCCH格式1a:通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC信令,获取传输PUCCH格式1a数据的PUCCH格 式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC或动态的DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求63所述的方法,其中:将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;所述第三获取单元设置成按照如下方式根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引:根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
- 如权利要求58或59所述的MTC终端,其中:不同PUCCH子带的PUCCH格式1/1a资源统一编号;所述第三获取单元对于PUCCH格式1a:通过半静态RRC或动态DCI信令,获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
- 如权利要求45或46所述的MTC终端,其中:所述发送单元在PUSCH与SRS或者PUCCH与SRS需要同时发送的子帧上:在相同的窄带上发送所述PUSCH与SRS或者发送所述PUCCH与SRS;或者,只发送所述PUSCH或PUCCH,放弃发送所述SRS;或者,用于发送SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于发送任何PUSCH或PUCCH。
- 一种可进行机器类型通信MTC的基站,包括第一指示单元和接收单元,其中:所述第一指示单元设置成:预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域;所述接收单元设置成:在所述资源区域内接收MTC终端发送的上行物理信道和上行信号;其中,所述上行物理信道和上行信号包括:物理上行共享信道PUSCH、物理上行控制信道PUCCH以及探测参考信号SRS。
- 如权利要求67所述的基站,其中:所述第一指示单元设置成按照如下方式预定义或通过信令,指示可用于发送上行物理信道和上行信号的资源区域:预定义或通过信令指示可用于发送PUSCH的资源区域为系统带宽中确定的NPUSCH个PUSCH子带;预定义或通过信令指示可用于发送PUCCH的资源区域为系统带宽中的确定的NPUCCH个PUCCH子带;预定义或通过信令指示可用于发送SRS的资源区域为系统带宽中的确定的NSRS个SRS子带;其中,所述PUSCH子带、PUCCH子带及SRS子带均包括一个或连续多个的物理资源块PRB资源;同一类子带的不同子带所包括的PRB资源没有重叠;NPUSCH、NPUCCH或NSRS为大于等于1的正整数。
- 如权利要求68所述的基站,其中:对于时分双工TDD系统,所述第一指示单元指示的NPUSCH个PUSCH子带与可用于发送下行物理信道的资源区域所包括的子带所占的资源相同。
- 如权利要求67或68所述的基站,其中:所述第一指示单元通过系统信息块SIB信令指示可用于发送上行物理信道和上行信号的资源区域。
- 如权利要求68或69所述的基站,其中:所述第一指示单元指示的所述NPUSCH个PUSCH子带为物理连续的子带,且所述NPUSCH个子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-NPUSCH×MPUSCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUSCH表示一个PUSCH子带包括的PRB资源的个数;或者,所述NPUSCH个子带分为两个子带组,每个子带组包括的子带物理连续,其中第一个子带组所占的第1个PRB资源的索引和第二个子带组所占的第1个PRB资源的索引分别是:NNormal-PUCCH,和,NTotal-PRB-NNormal-PUCCH-NPUSCH (2)×MPUSCH,其中,NPUSCH (2)表示第二个PUSCH子带组包括的子带数。
- 如权利要求68所述的基站,其中:所述第一指示单元指示的所述NSRS个SRS子带为所述NPUSCH个PUSCH子带中可用于传统SRS传输且大小为4个PRB资源的所有SRS子带中的NSRS个SRS子带。
- 如权利要求68或72所述的基站,其中:所述第一指示单元指示的所述NPUSCH个PUSCH子带被分为两个或两个 以上的子带组,其中,每个子带组所包括的子带物理连续,所述两个或两个以上子带组中的每一个子带组包括所述NSRS个SRS子带中的至少1个。
- 如权利要求68所述的基站,该基站还包括第二指示单元,所述第二指示单元设置成:预定义或通过UE专有信令,指示所述NSRS个SRS子带中的一个SRS子带来发送当前SRS信号,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
- 如权利要求68所述的基站,其中:所述第一指示单元指示的所述NPUCCH等于1或2。
- 如权利要求68所述的基站,其中:所述第一指示单元指示的所述NPUCCH大于1,所述NPUCCH个PUCCH子带包含于所述NPUSCH个PUSCH子带中。
- 如权利要求68所述的基站,其中:所述第一指示单元指示的所述NPUCCH等于1,所述PUCCH子带所占的第1个PRB资源的索引是:NNormal-PUCCH,或,NTotal-PRB-NNormal-PUCCH-MPUCCH,其中,NNormal-PUCCH表示在上边带和下边带分别为非MTC终端预留的用于PUCCH传输的PRB资源的个数,NTotal-PRB表示系统带宽中的PRB资源的总数,MPUCCH表示一个PUCCH子带包括的PRB资源数。
- 如权利要求68所述的基站,其中:所述第一指示单元指示的所述NPUCCH等于2,所述两个PUCCH子带包括的PRB资源分别是所述NPUSCH个PUSCH子带中占用最高频率的MPUCCH个PRB资源和占用最低频率的MPUCCH个PRB资源,其中,MPUCCH表示一个PUCCH子带包括的PRB资源的个数。
- 如权利要求68所述的基站,其中:所述第一指示单元指示的所述NPUCCH个PUCCH子带与物理随机接入信道PRACH子带没有重叠。
- 如权利要求68所述的基站,该基站还包括第三指示单元,所述第三指示单元设置成:通过UE专有信令和/或增强的控制信道单元ECCE资源,指示所述NPUCCH个PUCCH子带中所包含的所有PUCCH资源中的一个来传输PUCCH数据,其中,所述UE专有信令包括:动态的下行控制信息DCI信令和/或半静态的射频资源控制RRC信令。
- 如权利要求80所述的基站,其中:不同子带的PUCCH资源统一编号或独立编号;其中,所述PUCCH资源包括PUCCH格式1/1a资源和PUCCH格式2/2a资源。
- 如权利要求81所述的基站,其中:不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源统一编号;且不同PUCCH子带的PUCCH格式1/1a资源和/或PUCCH格式2/2a资源是相互交错地进行编号。
- 如权利要求80或81所述的基站,其中:不同PUCCH子带的PUCCH格式2/2a资源独立编号;所述第三指示单元对于PUCCH格式2或格式2a,通过半静态的RRC信令,指示传输PUCCH格式2或格式2a数据的PUCCH格式2/2a资源所在PUCCH子带的索引以及子带内的PUCCH格式2/2a资源的索引。
- 如权利要求80或81所述的基站,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号;所述第三指示单元对于PUCCH格式1,通过半静态的RRC信令,指示传输PUCCH格式1数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求80或81所述的基站,其中:不同PUCCH子带的PUCCH格式1/1a资源独立编号;所述第三指示单元对于PUCCH格式1a:通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,通过动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,通过半静态的RRC或动态的DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引,以及,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源所在子带内的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接指示传输PUCCH格式1a有关的PUCCH格式1/1a资源所在PUCCH子带的索引以及子带内的PUCCH格式1/1a资源的索引。
- 如权利要求85所述的方法,其中:将增强物理下行控制信道EPDCCH控制区域所包括的所有ECCE资源分为NPUCCH个ECCE资源组,将所述NPUCCH个ECCE资源组分别与NPUCCH个PUCCH子带一一对应;所述第三指示单元设置成按照如下方式根据ECCE资源,间接获取传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引:根据所述EPDCCH所占用的一个ECCE资源所在的ECCE资源组对应的PUCCH子带,确定传输PUCCH格式1a数据的PUCCH格式1/1a资源所在PUCCH子带的索引。
- 如权利要求80或81所述的基站,其中:不同PUCCH子带的PUCCH格式1/1a资源统一编号;所述第三指示单元对于PUCCH格式1a:通过半静态RRC或动态DCI信令,指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引;或者,根据ECCE资源,间接指示传输PUCCH格式1a数据的PUCCH格式1/1a资源的索引。
- 如权利要求67或68所述的基站,其中:在PUSCH与SRS或者PUCCH与SRS需要同时接收的子帧上:在相同的窄带上接收所述PUSCH与SRS或者接收PUCCH与SRS;或者,只接收所述PUSCH或PUCCH,放弃接收所述SRS;或者,用于接收SRS的正交频分复用OFDM符号前的至少一个OFDM符号不再用于接收任何PUSCH或PUCCH。
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