WO2016107351A1 - 窄带的分配、窄带分配的获取方法和装置 - Google Patents

窄带的分配、窄带分配的获取方法和装置 Download PDF

Info

Publication number
WO2016107351A1
WO2016107351A1 PCT/CN2015/095826 CN2015095826W WO2016107351A1 WO 2016107351 A1 WO2016107351 A1 WO 2016107351A1 CN 2015095826 W CN2015095826 W CN 2015095826W WO 2016107351 A1 WO2016107351 A1 WO 2016107351A1
Authority
WO
WIPO (PCT)
Prior art keywords
narrowband
narrow band
prbs
prb
narrowbands
Prior art date
Application number
PCT/CN2015/095826
Other languages
English (en)
French (fr)
Inventor
张雯
夏树强
戴博
石靖
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201510250603.1A external-priority patent/CN106211334B/zh
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to EP15875030.7A priority Critical patent/EP3242516B1/en
Publication of WO2016107351A1 publication Critical patent/WO2016107351A1/zh
Priority to US15/638,676 priority patent/US10575281B2/en

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation

Definitions

  • the present invention relates to the field of communications, and in particular to a method and apparatus for obtaining narrowband allocation and narrowband allocation.
  • Machine Type Communication (MTC) User Equipment User Equipment, or Terminal
  • M2M Machine to Machine
  • LTE Long-Term Evolution
  • LTE-Advance Long-Term Evolution Advance
  • MTC multi-class data services based on LTE/LTE-A will also be more attractive.
  • MTC devices are usually low-cost devices with features such as a small RF bandwidth support and a single receive antenna.
  • the RF transmit and receive bandwidth is typically 1.4 MHz.
  • the system bandwidth is greater than 1.4 MHz, multiple downlink/uplink working narrowbands need to be allocated to the MTC UE, so that the MTC UE can receive/transmit signals on these narrowbands, and a narrowband is allocated to the MTC UE, which can be further reduced.
  • the indicated overhead of resource allocation is usually low-cost devices with features such as a small RF bandwidth support and a single receive antenna.
  • the RF transmit and receive bandwidth is typically 1.4 MHz.
  • the resource allocation modes “type 0” and “type 1” are both based on downlink data allocation (RBG), and several consecutive physical resource blocks (PRBs) form one RBG, and the size of the RBG is related to the system bandwidth.
  • the size of the RBG is 1, 2, 3, and 4 types.
  • the resource allocation mode "type 0" the granularity of resource allocation is RBG.
  • the cell broadcasts a cell-specific parameter called Sounding Reference Signal (SRS) bandwidth, which is the largest SRS bandwidth of the cell, which is hereinafter referred to as the SRS bandwidth of the cell.
  • SRS Sounding Reference Signal
  • the UE in the cell transmits the SRS in the SRS bandwidth of the cell.
  • the bandwidth of the SRS sent by the UE is not greater than the SRS bandwidth of the cell.
  • the bandwidth of the SRS sent by the UE is hereinafter referred to as the SRS bandwidth of the UE.
  • the SRS bandwidth of the cell is an integer multiple of 4 PRBs, and is composed of a plurality of SRS bandwidths of 4 PRBs, and the SRS bandwidth of each UE occupies a continuous SRS bandwidth of one or more 4 PRBs.
  • the eNB may also configure other parameters for sending the SRS for the UE, which may include: starting frequency domain location, combing, sending period, and offset, etc., so that the UE can periodically or aperiodically Send SRS.
  • the eNB can obtain the channel condition of the UE by measuring the SRS.
  • the UE may be scheduled to a suitable frequency domain location for data transmission according to the obtained channel condition of the UE to obtain a scheduling gain.
  • the SRS bandwidth of the UE is 4 PRBs. Integer multiple, for the MTC UE, it can only support SRS bandwidth of up to 4 PRBs.
  • the embodiments of the present invention provide a method and an apparatus for acquiring narrowband allocation and narrowband allocation, so as to at least solve the problem of the lack of a solution involving a narrowband allocation manner in the related art.
  • a narrowband allocation method is provided.
  • a narrowband allocation method includes: allocating one or more narrowbands to a UE, wherein each of the plurality of narrowbands does not overlap PRBs included in each of the narrowbands, or some or all of the plurality of narrowbands There is a partial PRB overlap in the included PRB.
  • the PRB index interval of the central narrowband is one of the following:
  • the PRB index interval of the center narrow band is: [N RB /2-3, N RB /2+2];
  • the N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the PRB index after the PRBs in the downlink system bandwidth are numbered from zero to the highest in the order of frequency.
  • the value of the PRB index ranges from ⁇ 0, 1, 2, ..., N RB ⁇ .
  • one of the narrowband or the plurality of narrowbands when one of the narrowband or the plurality of narrowbands is a downlink narrowband but a non-downstream central narrowband or an uplink narrowband, one of the narrowband or the plurality of narrowbands has a PRB index interval of one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the downlink within the system bandwidth.
  • the PRB index is numbered from zero in the lowest frequency to the highest order.
  • the PRB index in the PRB index interval indicates that the PRB in the SRS bandwidth of the cell is numbered from zero in the lowest to highest order.
  • the PRB index, k is a non-negative integer.
  • the value of G is related to the system bandwidth.
  • one of the narrowband or the plurality of narrowbands is the downlink non-central narrowband
  • the plurality of narrowbands allocated for the UE comprise one or more narrowband groups, each narrowband group consisting of two consecutive narrowbands, each of the two consecutive narrowbands comprising a continuous 6 PRBs, wherein the PRBs contained in two consecutive narrowbands do not overlap, and the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+11], and n is a non-negative integer.
  • the PRB index interval of one of the narrowband or the plurality of narrowbands is one of the following:
  • the PRB index interval of one of a narrow band or a plurality of narrow bands is one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • n is a non-negative integer. Indicates rounding up.
  • the plurality of narrowbands allocated to the UE comprise one or more narrowband groups, each narrowband group consisting of two or more narrowbands, and some PRBs in the PRBs included in adjacent narrowbands in each narrowband group overlap.
  • the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+b ⁇ G], where n is a non-negative integer and b is a positive integer.
  • the number of PRBs of the interval between the narrow band or the narrow band group other than the center narrow band is an integer multiple of G.
  • the control information is mapped to part or all of the resources of the overlapping PRBs.
  • the content of the downlink narrowband transmission includes at least one of the following: downlink control information; downlink data.
  • the content of the uplink narrowband transmission includes at least one of the following: PUSCH; PUCCH; PRACH.
  • the one or more narrowband allocation manners comprise one of the following: predefined, notified by the base station.
  • the allocation manner notified by the base station includes one of the following: the base station uses the cell-specific information for notification; and the base station uses the UE-specific information for notification.
  • the base station or the UE hops and transmits downlink/uplink information on one or more narrowbands.
  • the base station allocates one or more narrowband corresponding subframe information to the UE indication.
  • the precoding block group is determined by one of a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is one PRG, and if M is modulo X greater than zero, the size of the last PRG is: among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • the factor determining X comprises at least one of: a narrow band or a narrow band of one narrow band, a narrow band or a narrow band of one of the narrow bands, and a system bandwidth corresponding to a narrow band of the narrow band, for CSI reporting The number of PRBs included in the subband.
  • X satisfies one of the following conditions: condition 1, X ⁇ ⁇ 1, 2, 3, 4 ⁇ ; condition 2, X is M/2 or M/2 rounded down, or is less than or equal to M/2 a positive integer; condition 3, X is less than or equal to S/2 or S/2 rounded down, or a positive integer less than or equal to S/2, where S is a narrow band or a narrow band of narrow bands
  • condition 1, X ⁇ ⁇ 1, 2, 3, 4 ⁇ condition 2
  • X is M/2 or M/2 rounded down, or is less than or equal to M/2 a positive integer
  • condition 3 is less than or equal to S/2 or S/2 rounded down, or a positive integer less than or equal to S/2, where S is a narrow band or a narrow band of narrow bands
  • the number of PRBs included in the subband for the CSI report corresponding to the bandwidth; the minimum value of the value of X obtained by the condition 2, the condition 1, the condition 2, and the condition 2.
  • a method of acquiring a narrowband allocation is provided.
  • the method for obtaining a narrowband allocation includes: acquiring one or more narrowbands allocated by a base station, where physical resource blocks PRB included in each narrowband of the plurality of narrowbands do not overlap, or multiple narrowbands Some of the PRBs contained in some or all of the narrowband overlap.
  • the PRB index interval of the central narrowband is one of the following:
  • the PRB index interval of the center narrow band is: [N RB /2-3, N RB /2+2];
  • the N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the PRB index after the PRBs in the downlink system bandwidth are numbered from zero to the highest in the order of frequency.
  • the value of the PRB index ranges from ⁇ 0, 1, 2, ..., N RB ⁇ .
  • one of the narrowband or the plurality of narrowbands when one of the narrowband or the plurality of narrowbands is a downlink narrowband but a non-downstream central narrowband or an uplink narrowband, one of the narrowband or the plurality of narrowbands has a PRB index interval of one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the downlink within the system bandwidth.
  • the PRB index is numbered from zero in the lowest frequency to the highest order.
  • the PRB index in the PRB index interval indicates that the PRB in the SRS bandwidth of the cell is numbered from zero in the lowest to highest order.
  • the PRB index, k is a non-negative integer.
  • the value of G is related to the system bandwidth.
  • one of the narrowband or the plurality of narrowbands is the downlink non-central narrowband
  • the plurality of narrowbands allocated for the UE comprise one or more narrowband groups, each narrowband group consisting of two consecutive narrowbands, each of the two consecutive narrowbands comprising a continuous 6 PRBs, wherein the PRBs contained in two consecutive narrowbands do not overlap, and the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+11], and n is a non-negative integer.
  • the PRB index interval of one of the narrowband or the plurality of narrowbands is one of the following:
  • the PRB index interval of one of a narrow band or a plurality of narrow bands is one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • n is a non-negative integer. Indicates rounding up.
  • the plurality of narrowbands allocated to the UE comprise one or more narrowband groups, each narrowband group consisting of two or more narrowbands, and some PRBs in the PRBs included in adjacent narrowbands in each narrowband group overlap.
  • the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+b ⁇ G], where n is a non-negative integer and b is a positive integer.
  • the number of PRBs of the interval between the narrow band or the narrow band group other than the center narrow band is an integer multiple of G.
  • the control information is mapped to part or all of the resources of the overlapping PRBs.
  • the precoding block group is determined by one of a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is one PRG, and if M is modulo X greater than zero, the size of the last PRG is: among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • the factor determining X comprises at least one of: a narrow band or a narrow band of one narrow band, a narrow band or a narrow band of one of the narrow bands, and a system bandwidth corresponding to a narrow band of the narrow band, for CSI reporting The number of PRBs included in the subband.
  • X satisfies one of the following conditions: condition 1, X ⁇ ⁇ 1, 2, 3, 4 ⁇ ; condition 2, X is M/2 or M/2 rounded down, or is less than or equal to M/2 a positive integer; condition 3, X is less than or equal to S/2 or S/2 rounded down, or a positive integer less than or equal to S/2, where S is a narrow band or a narrow band of narrow bands
  • condition 1, X ⁇ ⁇ 1, 2, 3, 4 ⁇ condition 2
  • X is M/2 or M/2 rounded down, or is less than or equal to M/2 a positive integer
  • condition 3 is less than or equal to S/2 or S/2 rounded down, or a positive integer less than or equal to S/2, where S is a narrow band or a narrow band of narrow bands
  • the number of PRBs included in the subband for the CSI report corresponding to the bandwidth; the minimum value of the value of X obtained by the condition 2, the condition 1, the condition 2, and the condition 2.
  • a narrowband dispensing device is provided.
  • a narrowband allocation apparatus includes: an allocation module, configured to allocate one or more narrowbands to a user equipment UE, wherein a physical resource block PRB included in each of the plurality of narrowbands does not overlap, or There is a partial PRB overlap in the PRB included in some or all of the plurality of narrow bands.
  • the allocation module is configured to: when one of the narrowband or the plurality of narrowbands is the downlink center narrowband, if the NRB is an odd number, the PRB indexing interval of the central narrowband is one of the following:
  • the PRB index interval of the center narrow band is: [N RB /2-3, N RB /2+2];
  • the N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the PRB index after the PRBs in the downlink system bandwidth are numbered from zero to the highest in the order of frequency.
  • the allocation module is configured to set a PRB index interval of one of a narrow band or a plurality of narrow bands when one of the narrow band or the plurality of narrow bands is a downlink narrow band but a non-downstream center narrow band or an uplink narrow band
  • a PRB index interval of one of a narrow band or a plurality of narrow bands when one of the narrow band or the plurality of narrow bands is a downlink narrow band but a non-downstream center narrow band or an uplink narrow band
  • N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the PRB within the system bandwidth.
  • the PRB index numbered from zero in the lowest to highest order, and the PRB index in the PRB index interval refers to the PRB index after the number of the PRBs in the SRS bandwidth of the cell is numbered from zero to the highest in the order of frequency.
  • k is a non-negative integer.
  • the allocation module is configured such that when one of the narrowband or the plurality of narrowbands is a downlink narrowband but a non-downstream central narrowband, the value of G is related to the system bandwidth.
  • the narrowband includes six consecutive PRBs, wherein the PRBs included in two consecutive narrowbands do not overlap, and the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+11], and n is a non-negative integer.
  • the allocation module is configured to: when one of the narrowband or the plurality of narrowbands is a downlink narrowband but not a downlink center narrowband, if the NRB is an odd number, the PRB index interval of one of the narrowband or the plurality of narrowbands For one of the following:
  • the PRB index interval of one of a narrow band or a plurality of narrow bands is one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • n is a non-negative integer. Indicates rounding up.
  • the allocation module is configured to allocate a plurality of narrowbands for the UE to include one or more narrowband groups, each narrowband group being composed of two or more narrowbands, and the PRBs included in adjacent narrowbands in each narrowband group There is a partial PRB overlap, and the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+11b ⁇ G], where n is a non-negative integer and b is a positive integer.
  • the number of PRBs of the interval between the narrow band or the narrow band group other than the center narrow band is an integer multiple of G.
  • the control information is mapped to part or all of the resources of the overlapping PRBs.
  • the downlink narrowband is the content of the transmission, including at least one of the following: downlink control information; downlink data.
  • the content of the uplink narrowband transmission includes at least one of the following: PUSCH; PUCCH; PRACH.
  • the one or more narrowband allocation manners comprise one of the following: predefined, notified by the base station.
  • the allocation manner notified by the base station includes one of the following: the base station uses the cell-specific information for notification; and the base station uses the UE-specific information for notification.
  • the precoding block group is determined by one of a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is one PRG, and if M is modulo X greater than zero, the size of the last PRG is: among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • the factor determining X comprises at least one of: a narrow band or a narrow band of one narrow band, a narrow band or a narrow band of one of the narrow bands, and a system bandwidth corresponding to a narrow band of the narrow band, for CSI reporting The number of PRBs included in the subband.
  • X satisfies one of the following conditions: condition 1, X ⁇ ⁇ 1, 2, 3, 4 ⁇ ; condition 2, X is M/2 or M/2 rounded down, or is less than or equal to M/2 a positive integer; condition 3, X is less than or equal to S/2 or S/2 rounded down, or a positive integer less than or equal to S/2, where S is a narrow band or a narrow band of narrow bands
  • condition 1, X ⁇ ⁇ 1, 2, 3, 4 ⁇ condition 2
  • X is M/2 or M/2 rounded down, or is less than or equal to M/2 a positive integer
  • condition 3 is less than or equal to S/2 or S/2 rounded down, or a positive integer less than or equal to S/2, where S is a narrow band or a narrow band of narrow bands
  • the number of PRBs included in the subband for the CSI report corresponding to the bandwidth; the minimum value of the value of X obtained by the condition 2, the condition 1, the condition 2, and the condition 2.
  • an apparatus for acquiring a narrowband distribution is provided.
  • the apparatus for acquiring the narrowband allocation includes: an acquiring module, configured to acquire one or more narrowbands allocated by the base station, wherein each of the plurality of narrowbands does not overlap the PRBs included in the narrowband, or multiple Some of the PRBs contained in some or all of the narrowbands in the narrowband overlap.
  • one or more narrowbands are allocated to the UE, wherein each of the plurality of narrowbands does not overlap the PRBs, or the PRBs included in some or all of the plurality of narrowbands.
  • the downlink narrowband does not divide the RBG, and does not affect the scheduling of the legacy UE.
  • the uplink narrowband includes a SRS bandwidth of 4 PRBs, so that the eNB can schedule the UE to send data without giving up sending the SRS.
  • FIG. 1 is a flow chart of a narrowband allocation method according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram showing a center narrow band of a PRB index interval of [(N RB -1)/2-2, (N RB -1) / 2 + 2] according to a preferred embodiment of the present invention
  • FIG. 3 is a schematic diagram showing a center narrow band of a PRB index interval of [(N RB -1) / 2-3, (N RB -1) / 2 + 3] according to a preferred embodiment of the present invention
  • FIG. 4 is a schematic diagram of a center narrow band of a PRB index interval of [(N RB -1) / 2-3, (N RB -1) / 2 + 2] according to a preferred embodiment of the present invention
  • FIG. 5 is a schematic diagram of a center narrow band of a (N RB -1)/2-2, (N RB -1) / 2 + 3] PRB index interval according to a preferred embodiment of the present invention
  • FIG. 6 is a schematic diagram of a center narrow band of a PRB interval of [N RB /2-3, N RB /2+2] according to a preferred embodiment of the present invention
  • Figure 10 is a schematic illustration of a narrow band set in accordance with a preferred embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a narrowband group at a center frequency when a system bandwidth is 3 MHz, in accordance with a preferred embodiment of the present invention.
  • FIG. 12 is a schematic diagram of a narrowband group at a center frequency when a system bandwidth is 5 MHz, in accordance with a preferred embodiment of the present invention
  • FIG. 13 is a schematic diagram of a narrowband group at a center frequency when a system bandwidth is 10 MHz, in accordance with a preferred embodiment of the present invention
  • FIG. 14 is a schematic diagram of a narrowband group at a center frequency when a system bandwidth is 15 MHz, in accordance with a preferred embodiment of the present invention.
  • 15 is a schematic diagram of a narrowband group at a center frequency when a system bandwidth is 20 MHz, in accordance with a preferred embodiment of the present invention.
  • 16 is a schematic diagram of a narrowband group outside a center frequency when a system bandwidth is 5 MHz, in accordance with a preferred embodiment of the present invention
  • 17 is a schematic diagram of a narrowband group outside a center frequency when the system bandwidth is 20 MHz, in accordance with a preferred embodiment of the present invention.
  • 19 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention. And a narrow band diagram when the narrow bands overlap;
  • 20 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention. And a narrowband diagram of PRACH and PUCCH when the narrowbands do not overlap;
  • 21 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention. And a narrowband diagram of PRACH and PUCCH when narrowband overlaps;
  • Figure 22 is an index of the narrowband start PRB within the SRS bandwidth. And a narrow band diagram when the narrow bands do not overlap;
  • Figure 23 is an index of the narrowband start PRB within the SRS bandwidth. And a narrow band diagram when the narrow bands overlap;
  • 24 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention. And a narrowband diagram of PRACH and PUCCH when the narrowbands do not overlap;
  • 25 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention. And a narrowband diagram of PRACH and PUCCH when narrowband overlaps;
  • 26 is a flowchart of a method for acquiring a narrowband allocation according to an embodiment of the present invention.
  • Figure 27 is a block diagram showing the structure of a narrowband distribution device according to an embodiment of the present invention.
  • FIG. 28 is a block diagram showing the structure of a narrowband allocation acquiring apparatus according to an embodiment of the present invention.
  • FIG. 1 is a flow chart of a method of allocating a narrow band in accordance with an embodiment of the present invention. As shown in FIG. 1, the method may include the following processing steps:
  • Step S102 Allocating one or more narrowbands to the UE, wherein each of the plurality of narrowbands does not overlap the PRBs included in the narrowband, or some PRBs overlap in the PRBs included in some or all of the plurality of narrowbands .
  • no PRB overlap means that the same PRB does not exist between narrowbands, for example, a narrowband PRB index interval is [0, 5], and another narrowband PRB index interval is [6, 11 ], then there is no PRB overlap in the PRBs included in the two narrowbands;
  • partial PRB overlap means that some PRBs are the same between narrowbands, for example: a narrowband PRB index interval is [0, 5], and the other The narrowband PRB index interval is [4, 9], then some PRBs overlap in the PRBs included in the two narrowbands, and the overlapping PRB indexes are 4 and 5.
  • the narrowband distribution method provided in the related art is relatively simple and lacks flexibility.
  • the working frequency band of the UE supporting the RF bandwidth smaller than the system bandwidth can be referred to as a narrowband, and the application is not limited to the MTC UE, and the uplink and/or downlink narrowband is allocated by combining the transmission positions of the RBG or the SRS.
  • This solves the problem that the narrowband allocation mode provided in the related art is relatively simple and lacks flexibility, thereby reducing the indication overhead of resource allocation, and does not divide the RBG, and does not affect the scheduling of the legacy UE.
  • the PRB index interval of the central narrowband is one of the following:
  • the PRB index interval of the center narrow band is: [N RB /2-3, N RB /2+2];
  • the PRB index in the PRB index interval refers to the PRB index after the PRBs in the downlink system bandwidth are numbered from the lowest to the highest frequency, and the N RB is the number of PRBs corresponding to the system bandwidth, and each system bandwidth corresponds to The number of PRBs N RB is shown in Table 1.
  • one of the narrowband or the plurality of narrowbands when one of the narrowband or the plurality of narrowbands is a downlink narrowband but a non-downstream central narrowband or an uplink narrowband, one of the narrowband or the plurality of narrowbands has a PRB index interval of one of the following:
  • G ⁇ ⁇ 2, 3, 4 ⁇ , k is an integer
  • the PRB index in the PRB index interval refers to the order of the PRB in the system bandwidth according to the lowest to highest frequency.
  • the number of the PRB index in the PRB index interval is the PRB index in the PRB index interval.
  • the PRB of the frequency has a PRB index of -1, -2, ... from the highest to the lowest.
  • k is a non-negative integer, and the value of k satisfies the above-mentioned PRB index interval for the downlink within the interval [0, N RB -1], for example, for the PRB index interval [k ⁇ G, k ⁇ G+5],
  • the value of k should be no more than a non-negative integer; for the uplink, the above-mentioned PRB index interval is within the interval [-1, N SRS ], where the N SRS is the number of PRBs included in the SRS bandwidth of the cell, for example, for the PRB index interval [k ⁇ G-1 , k ⁇ G + 4], the value of k should be no greater than Non-negative integer.
  • the value of G is related to the system bandwidth.
  • one of the narrowband or the plurality of narrowbands is the downlink non-central narrowband
  • the plurality of narrowbands allocated for the UE comprise one or more narrowband groups, each narrowband group consisting of two consecutive narrowbands, each of the two consecutive narrowbands comprising a continuous 6 PRB, wherein the PRBs contained in two consecutive narrowbands do not overlap, the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+11], n is a non-negative integer, and the value of n is The downlink satisfies the PRB index interval within the interval [0, N RB -1]; for the uplink, the PRB index interval is within the interval [-1, N SRS ].
  • the PRB index interval of one of the narrowband or the plurality of narrowbands is one of the following:
  • the PRB index interval of one of a narrow band or a plurality of narrow bands is one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • n is a non-negative integer. Indicates rounding up.
  • the above PRB index interval is within the interval [0, N RB -1].
  • the plurality of narrowbands allocated to the UE comprise one or more narrowband groups, each narrowband group consisting of two or more narrowbands, and some PRBs in the PRBs included in adjacent narrowbands in each narrowband group overlap.
  • the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+b ⁇ G], where n is a non-negative integer, b is a positive integer, and for the downlink, the PRB index interval is in the interval [0, N). Within the RB -1]; for the uplink, the PRB index interval is within the interval [-1, N SRS ].
  • the number of PRBs of the interval between the narrow band or the narrow band group other than the center narrow band is an integer multiple of G.
  • the control information is mapped to part or all of the resources of the overlapping PRBs.
  • the content of the downlink narrowband transmission may include at least one of the following:
  • the downlink control information may include, but is not limited to: an enhanced physical downlink control channel (E-PDCCH);
  • E-PDCCH enhanced physical downlink control channel
  • the downlink data may include, but is not limited to, information transmitted on a Physical Downlink Shared Channel (PDSCH).
  • PDSCH Physical Downlink Shared Channel
  • the content of the uplink narrowband transmission may include but is not limited to one of the following:
  • PUSCH Physical uplink shared channel
  • PUCCH Physical uplink control channel
  • PRACH Physical Random Access Channel
  • the one or more narrowband allocation manners may include one of the following: predefined, notified by the base station.
  • the allocation manner notified by the base station may include one of the following:
  • the base station uses cell-specific information for notification
  • the base station uses the UE-specific information for notification.
  • the base station or the UE hops and transmits downlink/uplink information on one or more narrowbands.
  • the base station allocates one or more narrowband corresponding subframe information to the UE indication.
  • the PRG may be determined by one of a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is one PRG, and if M is modulo X greater than zero, the size of the last PRG is: among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • the factor determining X may include, but is not limited to, at least one of the following:
  • X satisfies one of the following conditions:
  • X is M/2 or M/2 rounded down, or a positive integer less than or equal to M/2;
  • X is less than or equal to S/2 or S/2 is rounded down, or is a positive integer less than or equal to S/2, where S is a system bandwidth corresponding to a narrow band of one narrow band or a plurality of narrow bands The number of PRBs included in the subband reported by the CSI;
  • Condition 4 the minimum value of the value of X obtained by any two of the above conditions 1, condition 2 and condition 3.
  • the eNB allocates one or more narrowbands to the UE. If the downlink narrowband is allocated, if the system bandwidth configuration N RB is odd, that is, the system bandwidth is 3 MHz or 5 MHz or 15 MHz, the center narrowband is the system bandwidth.
  • the five PRBs in the center that is, the PRB index interval is [(N RB -1)/2-2, (N RB -1) / 2+2].
  • the corresponding PRB index intervals for 3MHz, 5MHz, and 15MHz are [5, 9], [10, 14], and [35, 39].
  • FIG. 3 is a schematic diagram of a center narrow band of a PRB index interval of [(N RB -1) / 2-3, (N RB -1) / 2 + 3], in accordance with a preferred embodiment of the present invention.
  • the center narrowband is 7 PRBs in the center of the system bandwidth, that is, the PRB index interval is [(N RB -1) / 2-3, (N RB -1) / 2 + 3].
  • FIG. 4 is a schematic diagram of a center narrow band of a PRB index interval of [(N RB -1) / 2-3, (N RB -1) / 2 + 2], in accordance with a preferred embodiment of the present invention.
  • 5 is a schematic diagram of a center narrowband of a PRB index interval of (N RB -1)/2-2, (N RB -1) / 2 + 3], in accordance with a preferred embodiment of the present invention.
  • the PRB index intervals corresponding to 3MHz, 5MHz, and 15MHz are [4, 10], [9, 15], and [34, 40], respectively, and the PRB of the edge may not be occupied, occupying only Part of the RE.
  • the center narrowband is 6 PRBs in the center of the system bandwidth, that is, the PRB index interval is [(N RB -1)/2-3, (N RB -1)/2+2] or (N RB -1)/2 -2, (N RB -1) / 2 + 3].
  • the PRB index interval corresponding to 3 MHz is [5, 10] or [4, 9]
  • the PRB index interval corresponding to 5 MHz is [9, 14] or [10, 15]
  • the PRB index interval corresponding to 15 MHz is [34, 39].
  • N RB is the number of PRBs corresponding to the downlink system bandwidth, and the system bandwidth is corresponding to 3 MHz, 5 MHz, 10 MHz, 15 MHz, and 20 MHz. They are 15, 25, 50, 75, 100 respectively.
  • FIG. 6 is a schematic diagram of a center narrow band of a PRB interval of [N RB /2-3, N RB /2+2] in accordance with a preferred embodiment of the present invention.
  • the center narrowband is the 6 PRBs of the system bandwidth center, that is, the center narrowband PRB.
  • the interval is [N RB /2-3, N RB /2+2].
  • the corresponding PRB index intervals for system bandwidths of 10 MHz and 20 MHz are [22, 27] and [47, 52], respectively.
  • the index of the starting PRB of the narrowband is k ⁇ G, or the index of the highest frequency PRB is k ⁇ G-1, where G ⁇ 2, 3, 4 ⁇ and k Is an integer.
  • the above PRB index interval is within the interval [0, N RB -1].
  • the narrowband PRB index interval is: [k ⁇ G, k ⁇ G+5], or [k ⁇ G-6, k ⁇ G-1].
  • the value of G is related to the system bandwidth.
  • G is the number of PRBs included in the RBG corresponding to the system bandwidth.
  • FIG. 7 to FIG. 9 respectively, a schematic diagram of narrow bands of 6 PRBs allocated when RBG or G is equal to 2, 3, and 4 is given, and the narrow band allocated to the UE is all or part of narrow bands in these narrow bands.
  • a number of PRBs with an edge number less than 6 may also form a narrow band and allocate UEs. The remaining RBGs in the edge of FIG. 7 to FIG.
  • FIG. 10 is a schematic illustration of a narrow band set in accordance with a preferred embodiment of the present invention. As shown in FIG. 10, from the lowest frequency to the highest, each of the two narrow bands constitutes a narrow band group, and there is no overlap between the narrow band groups.
  • a narrowband group can be allocated entirely to the UE.
  • the number of PRBs of the interval between the narrow band groups should be an integer multiple of G.
  • “interval” refers to the PRB between the highest frequency PRB of the lower frequency narrowband and the lowest frequency PRB of the higher frequency narrowband, such as a narrowband PRB index [0, 5], another narrow band
  • the PRB index is [8, 13]
  • the interval is PRB#6 and PRB7, for a total of 2 PRBs.
  • 11 is a schematic diagram of a narrowband group at a center frequency when the system bandwidth is 3 MHz, in accordance with a preferred embodiment of the present invention.
  • 12 is a schematic diagram of a narrowband group at a center frequency when the system bandwidth is 5 MHz, in accordance with a preferred embodiment of the present invention.
  • 13 is a schematic diagram of a narrowband group at a center frequency when the system bandwidth is 10 MHz, in accordance with a preferred embodiment of the present invention.
  • FIG. 14 is a schematic diagram of a narrowband group at a center frequency when the system bandwidth is 15 MHz, in accordance with a preferred embodiment of the present invention.
  • 15 is a schematic diagram of a narrowband group at a center frequency when the system bandwidth is 20 MHz, in accordance with a preferred embodiment of the present invention.
  • the center narrow band is 5 PRBs, the center narrow band and one of the two sides.
  • two narrowbands have overlapping PRBs, and several narrowbands including the center narrowband shown in the figure are regarded as a narrowband group.
  • the narrowband group and the RBG are aligned, and the index satisfying the initial PRB is k. ⁇ G, and the index of the highest frequency PRB is k ⁇ G-1, where G ⁇ 2, 3, 4 ⁇ , k is an integer.
  • the center narrow band is not aligned with the RBG, a narrow band group is formed by overlapping PRBs with narrow bands on both sides, and the narrow band group is aligned with the RBG, so that when the narrow band group is allocated to the UE, the RBG is not divided. Does not affect the scheduling of legacy UEs.
  • 16 is a schematic diagram of a narrowband group outside the center frequency when the system bandwidth is 5 MHz, in accordance with a preferred embodiment of the present invention.
  • 17 is a schematic diagram of a narrowband group outside the center frequency at a system bandwidth of 20 MHz, in accordance with a preferred embodiment of the present invention. As shown in FIG. 16 and FIG. 17, respectively, a schematic diagram of narrowband allocation when the system bandwidth is 5 MHz and 20 MHz, respectively.
  • the adjacent two narrow bands form a narrow band group
  • the narrow band group has PRB overlap
  • the narrow band group has no PRB overlap
  • the narrow band group and the RBG are aligned
  • the index satisfying the initial PRB is k ⁇ G
  • the index of the highest frequency PRB is k ⁇ G-1, where G ⁇ ⁇ 2, 3, 4 ⁇ , k is an integer.
  • the interval between the narrowband groups should be an integer multiple of G.
  • the eNB may place the control information on all or part of the overlapping PRBs, so that the scheduling overhead becomes smaller, because in the case where the narrowbands do not overlap, at least one PRB transmission control information is required in the six PRBs, and the control overhead is 16.7%, and if two adjacent narrow ones have a PRB overlap, control information can be placed in the PRB, and the control information of the PRB can schedule 10 PRBs of data with a control overhead of 9.1%. Further, the control information may be placed only in the overlapping PRB, and the UE may blindly detect the control information only in the overlapping PRBs.
  • the narrowband allocated by the eNB may be predefined. For example, there are some fixed narrowband allocations to the UE for each system bandwidth, and the eNB and the UE both transmit or receive signals on the allocated narrowband, or the narrowband may also be associated with the cell identifier. There is a corresponding relationship between the different cell identifiers corresponding to different allocated narrowbands, and the assigned narrowbands are as described above.
  • the allocated narrowband may also be notified by the eNB. For example, a narrowband set is defined for each system bandwidth, and the eNB selects a partial narrowband and notifies the UE of the narrowband index. For example, in the above FIG. 15, there are a total of five narrowbands.
  • the 5 bits can be used to inform the UE of its working narrowband. For example, "00110" indicates that the 3rd and 4th narrowband are allocated to the UE. In the actual application process, it is not limited to the above manner.
  • the notification information may be cell-specific. For example, in the SIB, the UE that supports the RF bandwidth is smaller than the system bandwidth, and the downlink working narrowband is notified. The notified downlink working narrowband may be used for transmitting control information, or may be used for transmission.
  • the data information may also be used for mixing transmission control information and data information.
  • the eNB may perform frequency hopping transmission according to a preset rule on part or all of the narrowband of the notified narrowband, and the UE also performs frequency hopping reception according to a preset rule.
  • the frequency hopping method may be that each N subframes are hopped to transmit on a narrowband, and are transmitted on the same narrowband within N subframes. Further, in consideration of the time required for the radio frequency modulation, after the N subframes are transmitted, the N subframes may be separated and then transmitted. In practice, it is not limited to such a frequency hopping method.
  • the notification information may also be UE-specific. For example, the LTE signaling is used to notify a certain UE of its downlink working narrowband. The notified downlink working narrowband may be used for transmitting control information, or may be used for transmitting data information. It can be used to mix transmission control information and data information.
  • the eNB may perform frequency hopping transmission according to a preset rule on part or all of the narrowband of the narrowband, and the UE may also perform frequency hopping reception according to a preset rule. Further, the eNB may notify the UE of the allocated narrowband corresponding subframe.
  • the eNB allocates one or more narrowbands to the UE, and the narrowband is from the center narrowband to the two One or more of the narrow bands divided into edges are expanded.
  • the downlink narrow band is allocated, it is the same as in the above preferred embodiment 1, that is, if the system bandwidth is configured Odd, when the system bandwidth is 3MHz or 5MHz or 15MHz, the center narrowband is 5 PRBs in the center of the system bandwidth, that is, the PRB index interval is [(N RB -1)/2-2, (N RB -1)/2 +2], as shown in Figure 2.
  • the corresponding PRB index intervals of 3MHz, 5MHz, and 15MHz are [5, 9], [10, 14], and [35, 39]; or, the center narrowband is 7 PRBs of the system bandwidth center, that is, the PRB index interval is [( N RB -1) / 2-3, (N RB -1) / 2 + 3], as shown in FIG.
  • the corresponding PRB index intervals of 3MHz, 5MHz and 15MHz are [4,10], [9,15] and [34,40], the PRB of the edge may not be full, only part of the RE is occupied; or the center narrowband is the system.
  • the six PRBs in the bandwidth center, that is, the PRB index interval is [(N RB -1)/2-3, (N RB -1)/2+2] or (N RB -1)/2-2, (N RB -1) / 2 + 3], as shown in Figures 4 and 5.
  • the PRB index interval corresponding to 3 MHz is [5, 10] or [4, 9]
  • the PRB index interval corresponding to 5 MHz is [9, 14] or [10, 15]
  • the PRB index interval corresponding to 15 MHz is [34, 39]. Or [35,40].
  • the center narrowband is the 6 PRBs of the system bandwidth center, that is, the center narrowband PRB interval is [N RB /2-3, N RB /2+2 ],As shown in Figure 6.
  • the corresponding PRB index intervals for system bandwidths of 10 MHz and 20 MHz are [22, 27] and [47, 52], respectively.
  • the PRB index interval of one of the allocated narrowband or the plurality of narrowbands is one of the following:
  • the PRB index interval of one of the narrowband or one of the narrowbands allocated is one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • n is a non-negative integer. Indicates rounding up.
  • the PRB index interval is within the interval [0, N RB -1].
  • the narrowband allocated by the eNB may be predefined or may be notified, similar to the preferred embodiment 1 above. Further, the eNB may notify the UE of the allocated narrowband corresponding subframe.
  • the eNB allocates one or more upstream narrowbands to the UE.
  • the uplink narrowband is allocated to the UE, it should be ensured that there is at least one complete SRS narrowband of 4 PRBs in one uplink narrowband.
  • the eNB can schedule the UE to the narrowband corresponding to the four PRBs that need to send the SRS, so that the data and SRS of the UE can be transmitted without giving up one of them.
  • the PRB index interval corresponding to the uplink narrowband satisfying the above condition is: [4k, 4k+5] or [4k-6, 4k-1] or [4k-1, 4k+4], where k is an integer and the PRB index is Refers to the PRB index of the cell's SRS bandwidth starting from the lowest frequency PRB starting from zero. For PRBs whose frequency is lower than the SRS starting position, they are numbered -1, -2, ... from the highest to the lowest. .
  • narrowband PRB index is the PRB index that numbers the PRBs within the system bandwidth from zero to lowest in order of frequency.
  • the cell-specific parameters of the notification Is the index of the starting PRB of the SRS bandwidth of the entire cell, For the number of PRBs corresponding to the bandwidth of the uplink system, refer to Table 1.
  • the PRB index interval described in Table 1. is in the interval [0, ]within.
  • the system bandwidth is 5M
  • the SRS bandwidths of the four PRBs accommodated are: [2, 5], [6, 9], [10, 13], [14, 17], [18, 21], then the initial PRB index of the narrowband can be : 2, 4, 6, 8, 10, 12, 14, 16, 18, 20.
  • the narrowband PRB index interval is:
  • the SRS area is 32 PRBs
  • the narrowband allocated to the UE for transmitting the PUSCH is one or more of them. It can be seen that there is a complete SPR bandwidth of 4 PRBs in each narrowband. In this way, when scheduling, the eNB can schedule the UE to the narrowband corresponding to the four PRBs that need to send the SRS, so that the data and SRS of the UE can be transmitted without giving up one of them. However, there are some narrowbands in the SRS bandwidth of the four PRBs.
  • the SRS bandwidth of the second four PRBs does not belong to any narrowband of six PRBs.
  • the SRS of the UE is hopped to the 4
  • the eNB of the PRB is scheduled to transmit the PUSCH of the UE to the narrowband of the first 6 PRB
  • the SRS and the PUSCH may be simultaneously transmitted only when the PUSCH of the UE is located in the last 4 PRBs of the narrowband.
  • Scheduling brings some restrictions. Therefore, overlapping between narrow bands can solve this problem.
  • 19 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention. And a narrow band diagram when the narrow bands overlap. As shown in FIG.
  • the number of overlapping PRBs between two narrowbands is two, and the SRS bandwidth corresponding to each of the four PRBs is on a certain narrowband. All or part of the overlapping narrowband is assigned to the UE. In the actual application process, it is not limited to such an overlapping manner, and the number of PRBs overlapped between two different narrow bands may also be different.
  • the foregoing narrowband may be used to transmit a PUSCH or a hybrid transmission PUSCH and a PUCCH.
  • An example of a hybrid transmission PUSCH and a PUCCH is a PRB transmission PUCCH of an edge, and the remaining PRBs transmit a PUSCH. If the narrowband described above is only used to transmit the PUSCH and the narrowband of the transmitted PUCCH is a single narrowband, then the narrowband used to transmit the PUCCH within the SRS bandwidth of the cell should also satisfy the above conditions. The narrowband of the PRACH transmitted within the SRS bandwidth of the cell should also satisfy the above conditions, so that the uplink data narrowband and the control narrowband can be completely adjacent.
  • 20 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention.
  • 21 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention.
  • the narrowband of the PUCCH and the narrowband of the PUSCH may also overlap.
  • the narrow band transmitting PUCCH or PRACH can also be located outside the SRS area.
  • the narrowband PRB index interval is:
  • Figure 22 is an index of the narrowband start PRB within the SRS bandwidth. And a narrow band diagram when the narrow bands do not overlap. As shown in Figure 22, each narrow band contains a complete SRS bandwidth of 4 PRBs.
  • Figure 23 is an index of the narrowband start PRB within the SRS bandwidth. And a narrow band diagram when the narrow bands overlap. As shown in Figure 23, each narrow band also contains a complete SPR bandwidth of 4 PRBs.
  • the narrowband of the UE allocated by the eNB is all narrowband or partial narrowband. In the actual application process, it is not limited to the above overlapping manner, and the number of PRBs overlapped between two different narrow bands may also be different.
  • the above narrowband can be used to transmit PUSCH or hybrid transmission PUSCH and PUCCH. If the narrowband described above is only used to transmit the PUSCH and the narrowband of the transmitted PUCCH is a single narrowband, then within the SRS bandwidth of the cell, the narrowband used to transmit the PUCCH should satisfy:
  • the narrowband PRB interval is:
  • the narrowband of the PRACH transmitted within the SRS bandwidth of the cell should also satisfy the above conditions, so that the uplink data narrowband and the control narrowband can be completely adjacent.
  • 24 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention.
  • 25 is an index of a narrowband start PRB within an SRS bandwidth according to a preferred embodiment of the present invention.
  • the narrowband of the PUCCH and the narrowband of the PUSCH may also overlap.
  • the narrow band transmitting PUCCH or PRACH can also be located outside the SRS area.
  • the narrowband allocated by the eNB may be predefined. For example, there is some fixed narrowband allocation to the UE for each system bandwidth, and both the eNB and the UE receive or transmit signals on the allocated narrowband, and the allocated narrowband is as described above.
  • the allocated narrowband may also be notified by the eNB, for example, a narrowband set is defined for each system bandwidth, and the eNB selects a partial narrowband and notifies the UE of the narrowband index. In the actual application process, it is not limited to the above manner.
  • the notification information may be cell-specific. For example, in the SIB, the UE that supports the RF bandwidth is smaller than the system bandwidth, and the uplink working narrowband is notified.
  • the notified uplink working narrowband may be used for transmitting the PUSCH, or may be used for transmitting the PUCCH. It may also be used for transmitting PRACH, or may be used for hybrid transmission of PUSCH and PUCCH.
  • the UE may perform frequency hopping transmission according to a preset rule on part or all of the narrowband of the notified narrowband, and the eNB may also perform frequency hopping reception according to a preset rule.
  • the notification information may also be UE-specific. For example, the RRC signaling is used to notify a certain UE of its uplink working narrowband.
  • the notified uplink working narrowband may be used for transmitting the PUSCH, or may be used for transmitting the PUCCH, or may be For transmitting PRACH, it can also be used for hybrid transmission of PUSCH and PUCCH.
  • the UE may perform frequency hopping transmission according to a preset rule on part or all of the narrowband of the narrowband, and the eNB may also perform frequency hopping reception according to a preset rule. Further, the eNB may notify the UE of the allocated narrowband corresponding subframe.
  • the narrowband allocated by the eNB for the UE includes an uplink narrowband and a downlink narrowband, wherein the uplink is narrow with one or more, and the downlink narrowband is also one or more.
  • the uplink narrowband and the downlink narrowband For the conditions that need to be met for the uplink narrowband and the downlink narrowband, reference may be made to the above-mentioned preferred embodiment 1 to the preferred embodiment 3, and details are not described herein again.
  • the UE For a UE configured with the transmission mode 9 or 10, if configured to report PMI/RI, the UE assumes a precoding granularity of multiple resource block RBs. In addition, the UE also assumes a precoding block group (precoding block) All PRBs in group, abbreviated as PRG, use the same precoding. Similar to the UE, the base station uses the same precoding for all PRBs in a PRG.
  • PRG precoding block group
  • the PRG is usually based on system bandwidth.
  • the PRG should be determined by a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is a PRG. If M is modulo to X greater than zero, then the size of the last PRG is among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • PRB#1, 2, 3 are a PRG, and PRB#0 is a PRG.
  • X can be one of the following:
  • each of the two PRBs is a PRG. That is, PRB#0 and 1 are one PRG, PRB#2 and 3 are one PRG, PRB#4 and 5 are one PRG, or every three PRBs are one PRG, that is, PRB#0, 1 and 2 are one PRG, And PRB #3, 4 and 5 are a PRG.
  • X is M/2 or M/2 rounded down, or is a positive integer less than M/2.
  • 26 is a flow chart of a method of acquiring a narrowband allocation according to an embodiment of the present invention. As shown in FIG. 26, the method may include the following steps:
  • Step S2602 Acquire one or more narrowbands allocated by the base station, where the PRBs included in each of the plurality of narrowbands do not overlap, or some PRBs in the PRBs included in some or all of the plurality of narrowbands overlapping.
  • the PRB index interval of the central narrowband is one of the following:
  • the PRB index interval of the center narrow band is: [N RB /2-3, N RB /2+2];
  • the N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the PRB index after the PRBs in the downlink system bandwidth are numbered from zero to the highest in the order of frequency.
  • the value of the PRB index ranges from ⁇ 0, 1, 2, ..., N RB ⁇ .
  • one of the narrowband or the plurality of narrowbands when one of the narrowband or the plurality of narrowbands is a downlink narrowband but a non-downstream central narrowband or an uplink narrowband, one of the narrowband or the plurality of narrowbands has a PRB index interval of one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the downlink within the system bandwidth.
  • the PRB index is numbered from zero in the lowest frequency to the highest order.
  • the PRB index in the PRB index interval indicates that the PRB in the SRS bandwidth of the cell is numbered from zero in the lowest to highest order.
  • the PRB index, k is a non-negative integer.
  • the value of G is related to the system bandwidth.
  • one of the narrowband or the plurality of narrowbands is the downlink non-central narrowband
  • the plurality of narrowbands allocated for the UE include one or more narrowband groups, each narrowband The group consists of two consecutive narrow bands, each of the two consecutive narrow bands contains six consecutive PRBs, wherein the PRBs contained in two consecutive narrow bands do not overlap, and the PRB index interval of each narrow band group is [ 4 ⁇ n, 4 ⁇ n + 11], n is a non-negative integer.
  • the PRB index interval of one of the narrowband or the plurality of narrowbands is one of the following:
  • the PRB index interval of one of a narrow band or a plurality of narrow bands is one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • n is a non-negative integer. Indicates rounding up.
  • the plurality of narrowbands allocated to the UE comprise one or more narrowband groups, each narrowband group consisting of two or more narrowbands, and some PRBs in the PRBs included in adjacent narrowbands in each narrowband group overlap.
  • the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+b ⁇ G], where n is a non-negative integer and b is a positive integer.
  • the number of PRBs of the interval between the narrow band or the narrow band group other than the center narrow band is an integer multiple of G.
  • the control information is mapped to part or all of the resources of the overlapping PRBs.
  • the PRG may be determined by one of a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is one PRG, and if M is modulo X greater than zero, the size of the last PRG is: among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • the factor determining X may include, but is not limited to, at least one of the following:
  • X satisfies one of the following conditions:
  • X is M/2 or M/2 rounded down, or a positive integer less than or equal to M/2;
  • X is less than or equal to S/2 or S/2 is rounded down, or is a positive integer less than or equal to S/2, where S is a system bandwidth corresponding to a narrow band of one narrow band or a plurality of narrow bands The number of PRBs included in the subband reported by the CSI;
  • Condition 4 the minimum value of the value of X obtained by any two of the above conditions 1, condition 2 and condition 3.
  • Figure 27 is a block diagram showing the structure of a narrowband dispensing device in accordance with an embodiment of the present invention.
  • the narrow band The allocating means may comprise: an allocating module 10, configured to allocate one or more narrowbands to the user equipment UE, wherein the physical resource blocks PRB included in each of the plurality of narrowbands do not overlap, or a plurality of narrowbands Some of the PRBs contained in some or all of the narrowband overlap.
  • the device shown in FIG. 27 solves the problem that the narrowband allocation mode provided in the related art is relatively simple and lacks flexibility, thereby reducing the indication overhead of resource allocation, and does not divide the RBG, and does not affect the scheduling of the legacy UE. .
  • the PRB index interval of the central narrowband is one of the following:
  • the PRB index interval of the center narrow band is: [N RB /2-3, N RB /2+2];
  • the N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the PRB index after the PRBs in the downlink system bandwidth are numbered from zero to the highest in the order of frequency.
  • the allocation module is configured to set a PRB index interval of one of a narrow band or a plurality of narrow bands when one of the narrow band or the plurality of narrow bands is a downlink narrow band but a non-downstream center narrow band or an uplink narrow band one:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • the PRB index in the PRB index interval refers to the PRB within the system bandwidth.
  • the PRB index numbered from zero in the lowest frequency to highest order, the PRB index in the PRB index interval refers to the PRB index after the number of the PRBs in the SRS bandwidth of the cell is numbered from zero to the highest in the order of frequency.
  • k is a non-negative integer.
  • the distribution module is configured to be one of a narrow band or a plurality of narrow bands, the downlink narrow band but not the lower When the center of the line is narrow, the value of G is related to the system bandwidth.
  • the narrowband includes six consecutive PRBs, wherein the PRBs included in two consecutive narrowbands do not overlap, and the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+11], and n is a non-negative integer.
  • the allocation module is configured to: when one of the narrowband or the plurality of narrowbands is a downlink narrowband but not a downlink center narrowband, if the NRB is an odd number, the PRB index interval of one of the narrowband or the plurality of narrowbands For one of the following:
  • the PRB index interval of one of a narrow band or a plurality of narrow bands is one of the following:
  • N RB is the number of PRBs corresponding to the system bandwidth
  • n is a non-negative integer. Indicates rounding up.
  • the allocation module is configured to allocate a plurality of narrowbands for the UE to include one or more narrowband groups, each narrowband group being composed of two or more narrowbands, and the PRBs included in adjacent narrowbands in each narrowband group There is a partial PRB overlap, and the PRB index interval of each narrowband group is [4 ⁇ n, 4 ⁇ n+11b ⁇ G], where n is a non-negative integer and b is a positive integer.
  • the number of PRBs of the interval between the narrow band or the narrow band group other than the center narrow band is an integer multiple of G.
  • the control information is mapped to part or all of the resources of the overlapping PRBs.
  • the downlink narrowband is transmitted content, including but not limited to at least one of the following:
  • the content of the uplink narrowband transmission may include but is not limited to one of the following:
  • PUSCH Physical uplink shared channel
  • PUCCH Physical uplink control channel
  • PRACH Physical Random Access Channel
  • the one or more narrowband allocation manners may include one of the following: predefined, notified by the base station.
  • the allocation manner notified by the base station may include one of the following:
  • the base station uses cell-specific information for notification
  • the base station uses the UE-specific information for notification.
  • the base station or the UE hops and transmits downlink/uplink information on one or more narrowbands.
  • the base station allocates one or more narrowband corresponding subframe information to the UE indication.
  • the PRG may be determined by one of a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is one PRG, and if M is modulo X greater than zero, the size of the last PRG is: among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • the factor determining X may include, but is not limited to, at least one of the following:
  • X satisfies one of the following conditions:
  • X is M/2 or M/2 rounded down, or a positive integer less than or equal to M/2;
  • X is less than or equal to S/2 or S/2 is rounded down, or is a positive integer less than or equal to S/2, where S is a system bandwidth corresponding to a narrow band of one narrow band or a plurality of narrow bands The number of PRBs included in the subband reported by the CSI;
  • Condition 4 the minimum value of the value of X obtained by any two of the above conditions 1, condition 2 and condition 3.
  • the narrowband distribution apparatus may include: an acquisition module 20 configured to acquire one or more narrowbands allocated by the base station, wherein each of the plurality of narrowbands includes no PRBs, or A part of the PRBs overlap in the PRB included in some or all of the plurality of narrow bands.
  • the PRG may be determined by one of a narrow band or a narrow band of a plurality of narrow bands.
  • each X consecutive PRBs is one PRG, and if M is modulo X greater than zero, the size of the last PRG is: among them, The rounding is rounded down.
  • the first PRB is the lowest frequency PRB or the highest PRB, and M is the number of PRBs included in one of the narrowband or narrowband.
  • the factor determining X may include, but is not limited to, at least one of the following:
  • X satisfies one of the following conditions:
  • X is M/2 or M/2 rounded down, or a positive integer less than or equal to M/2;
  • X is less than or equal to S/2 or S/2 is rounded down, or is a positive integer less than or equal to S/2, where S is a system bandwidth corresponding to a narrow band of one narrow band or a plurality of narrow bands The number of PRBs included in the subband reported by the CSI;
  • Condition 4 the minimum value of the value of X obtained by any two of the above conditions 1, condition 2 and condition 3.
  • MTC devices are generally low-cost devices with supported RF.
  • the bandwidth is relatively small, single receiving antenna and other characteristics, and its RF receiving bandwidth is generally 1.4MHz.
  • the MTC UE defines multiple downlink working narrowbands, which can enable the MTC UE to receive downlink control information and/or data on the narrowband.
  • the narrowband is allocated to the MTC UE, which can further reduce the indication overhead of resource allocation, and does not divide the RBG, and does not affect the scheduling of the legacy UE.
  • the MTC UE defines multiple uplink working narrowbands, so as to ensure that there is at least one complete 4 PRB SRS narrowband in an uplink narrowband. Therefore, when scheduling, the eNB can schedule the UE to the narrowband corresponding to the four PRBs that need to send the SRS, so that the data and the SRS of the UE can be transmitted without giving up one of them.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, thereby Storing them in a storage device is performed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that herein, or separately fabricated into individual integrated circuit modules, or Multiple of these modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.
  • the narrowband allocation and the narrowband allocation acquisition method and apparatus have the following beneficial effects: the indication overhead of the uplink and downlink resource allocation can be reduced, and the downlink narrowband does not divide the RBG, and the legacy UE is not scheduled.
  • the uplink narrowband includes a SRS bandwidth of 4 PRBs, so that the eNB can schedule the UE to transmit data without giving up sending the SRS.

Abstract

本发明公开了一种窄带的分配、窄带分配的获取方法和装置,在上述方法中,为UE分配一个或多个窄带,其中,多个窄带中的每个窄带所包含的PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。根据本发明提供的技术方案能够降低上下行资源分配的指示开销,并且本发明提供的技术方案中定义的下行窄带不分割RBG,不对legacy UE的调度带来影响,定义的上行窄带包含一个4个PRB的SRS带宽,使得eNB可以调度UE发送数据的同时,不用放弃发送SRS。

Description

窄带的分配、窄带分配的获取方法和装置 技术领域
本发明涉及通信领域,具体而言,涉及一种窄带的分配、窄带分配的获取方法和装置。
背景技术
机器类型通信(Machine Type Communication,简称为MTC)用户终端(User Equipment,简称为用户设备或终端),又称为机器到机器(Machine to Machine,简称为M2M)用户通信设备,是目前物联网的主要应用形式。
近年来,由于长期演进(Long-Term Evolution,简称为LTE)/高级长期演进系统(Long-Term Evolution Advance,简称为LTE-Advance或LTE-A)的频谱效率高,越来越多的移动运营商选择LTE/LTE-A作为宽带无线通信系统的演进方向。基于LTE/LTE-A的MTC多种类数据业务也将更具吸引力。
MTC设备通常是低成本的设备,具有支持的RF带宽比较小、单接收天线等特征,其RF发送和接收带宽一般为1.4MHz。对于系统带宽大于1.4MHz的情况而言,需要为MTC UE分配多个下行/上行的工作窄带,从而使得MTC UE能够在这些窄带上接收/发送信号,并且为MTC UE分配了窄带,可以进一步降低资源分配的指示开销。
在LTE系统中,资源分配方式“类型0”和“类型1”都是基于下行数据分配(RBG)的,几个连续的物理资源块(PRB)组成一个RBG,RBG的大小与系统带宽有关,RBG的大小有1、2、3、4四种。在资源分配方式“类型0”中,资源分配的粒度就是RBG。
在LTE系统中,小区会广播一个小区专用参数叫探测参考信号(Sounding Reference signal,简称为SRS)带宽,其为小区最大的SRS带宽,在下文中将其称为小区的SRS带宽。小区内的UE在小区的SRS带宽内发送SRS,UE发送SRS的带宽不大于小区的SRS带宽,下文中将UE发送SRS的带宽称为UE的SRS带宽。小区的SRS带宽是4个PRB的整数倍,由若干个4个PRB的SRS带宽组成,每个UE的SRS带宽占用连续的一个或者多个4个PRB的SRS带宽。除了UE的SRS带宽外,eNB还会为UE配置其他的发送SRS的参数,可以包括:起始频域位置、梳齿、发送周期和偏移(offset)等,使得UE能够周期或者非周期地发送SRS。eNB可以通过测量SRS得到UE的信道状况。在调度UE传输时,可以根据得到的UE的信道状况,将UE调度到合适的频域位置进行数据传输,以获得调度增益。UE的SRS带宽是4个PRB的 整数倍,对于MTC UE而言,最多只能支持4个PRB的SRS带宽。
相关技术中缺乏涉及窄带分配方式的解决方案。
发明内容
本发明实施例提供了一种窄带的分配、窄带分配的获取方法和装置,以至少解决相关技术中缺乏涉及窄带分配方式的解决方案的问题。
根据本发明实施例的一个方面,提供了一种窄带的分配方法。
根据本发明实施例的窄带的分配方法包括:为UE分配一个或多个窄带,其中,多个窄带中的每个窄带所包含的PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
优选地,当一个窄带或多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则中心窄带的PRB索引区间为以下之一:
[(NRB-1)/2-2,(NRB-1)/2+2];
[(NRB-1)/2-3,(NRB-1)/2+3];
[(NRB-1)/2-3,(NRB-1)/2+2];
[(NRB-1)/2-2,(NRB-1)/2+3];
若NRB为偶数,则中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
其中,NRB为系统带宽对应的PRB个数,PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。所述PRB索引的取值范围为{0,1,2,…,NRB}。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
[k×G,k×G+5];
[k×G-6,k×G-1];
[k×G-1,k×G+4];
[NRB-NRB mod G-a×G,NRB-1];
其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,所述PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与系统带宽相关。
优选地,在一个窄带或多个窄带的其中之一为下行的非中心窄带的情况下,当系统带宽对应的PRB数目∈[11,26]时,G=2;当系统带宽对应的PRB数目∈[27,63]时,G=3;当系统带宽对应的PRB数目∈[64,110]时,G=4。
优选地,当G=4时,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,两个连续的窄带中的每个窄带包含连续的6个PRB,其中,两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行中心窄带时,若NRB为奇数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
Figure PCTCN2015095826-appb-000001
Figure PCTCN2015095826-appb-000002
Figure PCTCN2015095826-appb-000003
Figure PCTCN2015095826-appb-000004
Figure PCTCN2015095826-appb-000005
Figure PCTCN2015095826-appb-000006
Figure PCTCN2015095826-appb-000007
Figure PCTCN2015095826-appb-000008
若NRB为偶数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
[NRB/2-9-6n,NRB/2-4-6n];
[NRB/2+3+6n,NRB/2+8+6n];
Figure PCTCN2015095826-appb-000009
Figure PCTCN2015095826-appb-000010
其中,NRB为系统带宽对应的PRB个数,n为非负整数,
Figure PCTCN2015095826-appb-000011
Figure PCTCN2015095826-appb-000012
表示向上取整。
优选地,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+b×G],其中,n为非负整数,b为正整数。
优选地,除中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
优选地,在多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
优选地,在一个窄带或多个窄带的其中之一为下行窄带时,下行窄带传输的内容包括以下至少之一:下行控制信息;下行数据。
优选地,在一个或多个窄带为上行窄带时,上行窄带传输的内容包括以下至少之一:PUSCH;PUCCH;PRACH。
优选地,一个或多个窄带的分配方式包括以下之一:预定义的、通过基站通知的。
优选地,通过基站通知的分配方式包括以下之一:基站采用小区专有信息进行通知;基站采用UE专有信息进行通知。
优选地,基站或者UE在一个或多个窄带上跳频发送下行/上行信息。
优选地,基站为UE指示分配一个或多个窄带对应的子帧信息。
优选地,预编码块组(PRG)由一个窄带或多个窄带中的一个窄带确定。
优选地,在一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
Figure PCTCN2015095826-appb-000013
其中,
Figure PCTCN2015095826-appb-000014
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带所包含的PRB个数。
优选地,确定X的因素包括以下至少之一:一个窄带或多个窄带中的一个窄带包含的PRB个数、一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
优选地,X满足以下条件之一:条件1、X∈{1,2,3,4};条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
根据本发明实施例的另一方面,提供了一种窄带分配的获取方法。
根据本发明实施例的窄带分配的获取方法包括:获取基站分配的一个或多个窄带,其中,多个窄带中的每个窄带所包含的物理资源块PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
优选地,当一个窄带或多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则中心窄带的PRB索引区间为以下之一:
[(NRB-1)/2-2,(NRB-1)/2+2];
[(NRB-1)/2-3,(NRB-1)/2+3];
[(NRB-1)/2-3,(NRB-1)/2+2];
[(NRB-1)/2-2,(NRB-1)/2+3];
若NRB为偶数,则中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
其中,NRB为系统带宽对应的PRB个数,PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。所述 PRB索引的取值范围为{0,1,2,…,NRB}。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
[k×G,k×G+5];
[k×G-6,k×G-1];
[k×G-1,k×G+4];
[NRB-NRB mod G-a×G,NRB-1];
其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,所述PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与系统带宽相关。
优选地,在一个窄带或多个窄带的其中之一为下行的非中心窄带的情况下,当系统带宽对应的PRB数目∈[11,26]时,G=2;当系统带宽对应的PRB数目∈[27,63]时,G=3;当系统带宽对应的PRB数目∈[64,110]时,G=4。
优选地,当G=4时,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,两个连续的窄带中的每个窄带包含连续的6个PRB,其中,两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行中心窄带时,若NRB为奇数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
Figure PCTCN2015095826-appb-000015
Figure PCTCN2015095826-appb-000016
Figure PCTCN2015095826-appb-000017
Figure PCTCN2015095826-appb-000018
Figure PCTCN2015095826-appb-000019
Figure PCTCN2015095826-appb-000020
Figure PCTCN2015095826-appb-000021
Figure PCTCN2015095826-appb-000022
若NRB为偶数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
[NRB/2-9-6n,NRB/2-4-6n];
[NRB/2+3+6n,NRB/2+8+6n];
Figure PCTCN2015095826-appb-000023
Figure PCTCN2015095826-appb-000024
其中,NRB为系统带宽对应的PRB个数,n为非负整数,
Figure PCTCN2015095826-appb-000025
Figure PCTCN2015095826-appb-000026
表示向上取整。
优选地,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+b×G],其中,n为非负整数,b为正整数。
优选地,除中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
优选地,在多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
优选地,预编码块组(PRG)由一个窄带或多个窄带中的一个窄带确定。
优选地,在一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
Figure PCTCN2015095826-appb-000027
其中,
Figure PCTCN2015095826-appb-000028
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带所包含的PRB个数。
优选地,确定X的因素包括以下至少之一:一个窄带或多个窄带中的一个窄带包含的PRB个数、一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
优选地,X满足以下条件之一:条件1、X∈{1,2,3,4};条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
根据本发明实施例的又一方面,提供了一种窄带的分配装置。
根据本发明实施例的窄带的分配装置包括:分配模块,设置为为用户设备UE分配一个或多个窄带,其中,多个窄带中的每个窄带所包含的物理资源块PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
优选地,分配模块,设置为当一个窄带或多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则中心窄带的PRB索引区间为以下之一:
[(NRB-1)/2-2,(NRB-1)/2+2];
[(NRB-1)/2-3,(NRB-1)/2+3];
[(NRB-1)/2-3,(NRB-1)/2+2];
[(NRB-1)/2-2,(NRB-1)/2+3];
若NRB为偶数,则中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
其中,NRB为系统带宽对应的PRB个数,PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。
优选地,分配模块,设置为当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
[k×G,k×G+5];
[k×G-6,k×G-1];
[k×G-1,k×G+4];
[NRB-NRB mod G-a×G,NRB-1];
其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,,PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
优选地,分配模块,设置为当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与系统带宽相关。
优选地,分配模块,设置为在一个窄带或多个窄带的其中之一为下行的非中心窄带的情况下,当系统带宽对应的PRB数目∈[11,26]时,G=2;当系统带宽对应的PRB数目∈[27,63]时,G=3;当系统带宽对应的PRB数目∈[64,110]时,G=4。
优选地,分配模块,设置为在G=4时,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,两个连续的窄带中的每个窄带包含连续的6个PRB,其中,两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
优选地,分配模块,设置为当一个窄带或多个窄带的其中之一为下行窄带但非下行中心窄带时,若NRB为奇数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
Figure PCTCN2015095826-appb-000029
Figure PCTCN2015095826-appb-000030
Figure PCTCN2015095826-appb-000031
Figure PCTCN2015095826-appb-000032
Figure PCTCN2015095826-appb-000033
Figure PCTCN2015095826-appb-000034
Figure PCTCN2015095826-appb-000035
Figure PCTCN2015095826-appb-000036
若NRB为偶数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
[NRB/2-9-6n,NRB/2-4-6n];
[NRB/2+3+6n,NRB/2+8+6n];
Figure PCTCN2015095826-appb-000037
Figure PCTCN2015095826-appb-000038
其中,NRB为系统带宽对应的PRB个数,n为非负整数,
Figure PCTCN2015095826-appb-000039
Figure PCTCN2015095826-appb-000040
表示向上取整。
优选地,分配模块,设置为为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+11b×G],其中,n为非负整数,b为正整数。
优选地,除中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
优选地,在多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
优选地,在一个或多个窄带为下行窄带时,下行窄带为传输的内容包括以下至少之一:下行控制信息;下行数据。
优选地,在一个或多个窄带为上行窄带时,上行窄带传输的内容包括以下至少之一:PUSCH;PUCCH;PRACH。
优选地,一个或多个窄带的分配方式包括以下之一:预定义的、通过基站通知的。
优选地,通过基站通知的分配方式包括以下之一:基站采用小区专有信息进行通知;基站采用UE专有信息进行通知。
优选地,预编码块组(PRG)由一个窄带或多个窄带中的一个窄带确定。
优选地,在一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
Figure PCTCN2015095826-appb-000041
其中,
Figure PCTCN2015095826-appb-000042
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带所包含的PRB个数。
优选地,确定X的因素包括以下至少之一:一个窄带或多个窄带中的一个窄带包含的PRB个数、一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
优选地,X满足以下条件之一:条件1、X∈{1,2,3,4};条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
根据本发明实施例的再一方面,提供了一种窄带分配的获取装置。
根据本发明实施例的窄带分配的获取装置包括:获取模块,设置为获取基站分配的一个或多个窄带,其中,多个窄带中的每个窄带所包含的PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
通过本发明实施例,采用为UE分配一个或多个窄带,其中,多个窄带中的每个窄带所包含的PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠,解决了相关技术中缺乏涉及窄带分配方式的解决方案的问题,进而能够降低上下行资源分配的指示开销。并且下行窄带不分割RBG,不对legacy UE的调度带来影响,上行窄带包含一个4个PRB的SRS带宽,使得eNB可以调度UE发送数据的同时,不用放弃发送SRS。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1是根据本发明实施例的窄带的分配方法的流程图;
图2是根据本发明优选实施例的PRB索引区间为[(NRB-1)/2-2,(NRB-1)/2+2]的中心窄带示意图;
图3是根据本发明优选实施例的PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+3]的中心窄带示意图;
图4是根据本发明优选实施例的PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+2]的中心窄带示意图;
图5是根据本发明优选实施例的PRB索引区间为(NRB-1)/2-2,(NRB-1)/2+3]的中心窄带示意图;
图6是根据本发明优选实施例的PRB区间为[NRB/2-3,NRB/2+2]的中心窄带示意图;
图7是根据本发明优选实施例的G=2时的窄带示意图;
图8是根据本发明优选实施例的G=3时的窄带示意图;
图9是根据本发明优选实施例的G=4时的窄带示意图;
图10是根据本发明优选实施例的窄带组示意图;
图11是根据本发明优选实施例的系统带宽为3MHz时的中心频率处的窄带组示意图;
图12是根据本发明优选实施例的系统带宽为5MHz时的中心频率处的窄带组示意图;
图13是根据本发明优选实施例的系统带宽为10MHz时的中心频率处的窄带组示意图;
图14是根据本发明优选实施例的系统带宽为15MHz时的中心频率处的窄带组示意图;
图15是根据本发明优选实施例的系统带宽为20MHz时的中心频率处的窄带组示意图;
图16是根据本发明优选实施例的系统带宽为5MHz时中心频率外的窄带组的示意图;
图17是根据本发明优选实施例的系统带宽是20MHz时中心频率外的窄带组的示意图;
图18是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000043
且窄带不重叠时的窄带示意图;
图19是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000044
且窄带重叠时的窄带示意图;
图20是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000045
且窄带不重叠时的PRACH和PUCCH窄带示意图;
图21是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000046
且窄带重叠时的PRACH和PUCCH窄带示意图;
图22是SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000047
且窄带不重叠时的窄带示意图;
图23是SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000048
且窄带重叠时的窄带示意图;
图24是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000049
且窄带不重叠时的PRACH和PUCCH窄带示意图;
图25是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000050
且窄带重叠时的PRACH和PUCCH窄带示意图;
图26是根据本发明实施例的窄带分配的获取方法的流程图;
图27是根据本发明实施例的窄带的分配装置的结构框图;
图28是根据本发明实施例的窄带分配的获取装置的结构框图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。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组合。
图1是根据本发明实施例的窄带的分配方法的流程图。如图1所示,该方法可以包括以下处理步骤:
步骤S102:为UE分配一个或多个窄带,其中,多个窄带中的每个窄带所包含的PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
需要说明的是,上述“PRB均不重叠”是指窄带之间不存在相同的PRB,例如:一个窄带的PRB索引区间为[0,5],另一个窄带的PRB索引区间为[6,11],那么这两个窄带所包含的PRB中不存在PRB重叠;上述“部分PRB重叠”是指窄带之间有部分PRB相同,例如:一个窄带的PRB索引区间为[0,5],另一个窄带的PRB索引区间为[4,9],那么这两个窄带所包含的PRB中存在部分PRB重叠,重叠的PRB索引为4和5。
相关技术中所提供的窄带分配方式相对单一,缺乏灵活性。采用如图1所示的方法,可以将支持RF带宽比系统带宽小的UE的工作频段称为窄带,应用不限于MTC UE,通过结合RBG或者SRS的发送位置分配上行和/或下行窄带,由此解决了相关技术中所提供的窄带分配方式相对单一,缺乏灵活性的问题,进而降低资源分配的指示开销,并且不分割RBG,不对legacy UE的调度带来影响。
优选地,当一个窄带或多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则中心窄带的PRB索引区间为以下之一:
(1)[(NRB-1)/2-2,(NRB-1)/2+2];
(2)[(NRB-1)/2-3,(NRB-1)/2+3];
(3)[(NRB-1)/2-3,(NRB-1)/2+2];
(4)[(NRB-1)/2-2,(NRB-1)/2+3];
若NRB为偶数,则中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
其中,PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,NRB为系统带宽对应的PRB个数,每种系统带宽对应的PRB个数NRB如表1所示。
表1
系统带宽BW[MHz] 1.4 3 5 10 15 20
NRB 6 15 25 50 75 100
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
(1)[k×G,k×G+5];
(2)[k×G-6,k×G-1];
(3)[k×G-1,k×G+4];
(4)[NRB-NRB mod G-a×G,NRB-1];
其中,G∈{2,3,4},k为整数,a∈{0,1,2},PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,对于频率低于SRS带宽最低频率的PRB,其PRB索引从频率最高到最低依次为-1,-2,…。k为非负整数,且k的取值对于下行满足上述的PRB索引区间在区间[0,NRB-1]之内,例如:对于PRB索引区间[k×G,k×G+5],k的取值应为不大于
Figure PCTCN2015095826-appb-000051
的非负整数;对于上行满足上述的PRB索引区间在区间[-1,NSRS]之内,其中NSRS为小区的SRS带宽包含的PRB个数,比如对于PRB索引区间[k×G-1,k×G+4],k的取值应为不大于
Figure PCTCN2015095826-appb-000052
的非负整数。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与系统带宽相关。
优选地,在一个窄带或多个窄带的其中之一为下行的非中心窄带的情况下,当系统带宽对应的PRB数目∈[11,26]时,G=2;当系统带宽对应的PRB数目∈[27,63]时,G=3;当系统带宽对应的PRB数目∈[64,110]时,G=4。
优选地,当G=4时,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,两个连续的窄带中的每个窄带包含连续的6个PRB,其中,两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数,且n的取值对于下行满足所述PRB索引区间在区间[0,NRB-1]之内; 对于上行满足所述PRB索引区间在区间[-1,NSRS]之内。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行中心窄带时,若NRB为奇数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
Figure PCTCN2015095826-appb-000053
Figure PCTCN2015095826-appb-000054
Figure PCTCN2015095826-appb-000055
Figure PCTCN2015095826-appb-000056
Figure PCTCN2015095826-appb-000057
Figure PCTCN2015095826-appb-000058
Figure PCTCN2015095826-appb-000059
Figure PCTCN2015095826-appb-000060
若NRB为偶数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
(1)[NRB/2-9-6n,NRB/2-4-6n];
(2)[NRB/2+3+6n,NRB/2+8+6n];
Figure PCTCN2015095826-appb-000061
Figure PCTCN2015095826-appb-000062
其中,NRB为系统带宽对应的PRB个数,n为非负整数,
Figure PCTCN2015095826-appb-000063
Figure PCTCN2015095826-appb-000064
表示向上取整。上述PRB索引区间在区间[0,NRB-1]之内。
优选地,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+b×G],其中,n为非负整数,b为正整数,且对于下行所述PRB索引区间在区间[0,NRB-1]之内;对于上行所述PRB索引区间在区间[-1,NSRS]之内。
优选地,除中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
优选地,在多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
优选地,在一个窄带或多个窄带的其中之一为下行窄带时,下行窄带传输的内容可以包括以下至少之一:
(1)下行控制信息;该下行控制信息可以包括但不限于:增强的物理下行控制信道(E-PDCCH);
(2)下行数据;该下行数据可以包括但不限于:在物理下行共享信道(PDSCH)传输的信息。
优选地,在一个或多个窄带为上行窄带时,上行窄带传输的内容可以包括但不限于以下之一:
(1)物理上行共享信道(PUSCH);
(2)物理上行控制信道(PUCCH);
(3)物理随机接入信道(PRACH)。
优选地,一个或多个窄带的分配方式可以包括以下之一:预定义的、通过基站通知的。
优选地,通过基站通知的分配方式可以包括以下之一:
(1)基站采用小区专有信息进行通知;
(2)基站采用UE专有信息进行通知。
优选地,基站或者UE在一个或多个窄带上跳频发送下行/上行信息。
优选地,基站为UE指示分配一个或多个窄带对应的子帧信息。
优选地,PRG可以由一个窄带或多个窄带中的一个窄带确定。
优选地,在一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
Figure PCTCN2015095826-appb-000065
其中,
Figure PCTCN2015095826-appb-000066
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带所包含的PRB个数。
优选地,确定X的因素可以包括但不限于以下至少之一:
(1)一个窄带或多个窄带中的一个窄带包含的PRB个数;
(2)一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
优选地,X满足以下条件之一:
条件1、X∈{1,2,3,4};
条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;
条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;
条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
下面将结合以下几个优选实施例对上述优选实施过程作进一步的描述。
优选实施例一
图2是根据本发明优选实施例的PRB索引区间为[(NRB-1)/2-2,(NRB-1)/2+2]的中心窄带示意图。如图2所示,eNB为UE分配一个或者多个窄带,如果分配的是下行的中心窄带,若系统带宽配置NRB为奇数,即系统带宽为3MHz或者5MHz或者15MHz时,中心窄带为系统带宽中心的5个PRB,即PRB索引区间为[(NRB-1)/2-2,(NRB-1)/2+2]。3MHz、5MHz和15MHz分别对应的PRB索引区间为[5,9]、[10,14]和 [35,39]。
图3是根据本发明优选实施例的PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+3]的中心窄带示意图。如图3所示,中心窄带为系统带宽中心的7个PRB,即PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+3]。
图4是根据本发明优选实施例的PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+2]的中心窄带示意图。图5是根据本发明优选实施例的PRB索引区间为(NRB-1)/2-2,(NRB-1)/2+3]的中心窄带示意图。如图4和图5所示,3MHz、5MHz和15MHz分别对应的PRB索引区间为[4,10]、[9,15]和[34,40],边缘的PRB可能未占满,只占用了部分RE。或者,中心窄带为系统带宽中心的6个PRB,即PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+2]或者(NRB-1)/2-2,(NRB-1)/2+3]。3MHz对应的PRB索引区间为[5,10]或者[4,9],5MHz对应的PRB索引区间为[9,14]或者[10,15],15MHz对应的PRB索引区间为[34,39]或者[35,40],其中,NRB为下行系统带宽对应的PRB个数,系统带宽为3MHz、5MHz、10MHz、15MHz和20MHz对应的
Figure PCTCN2015095826-appb-000067
分别为15,25,50,75,100。
图6是根据本发明优选实施例的PRB区间为[NRB/2-3,NRB/2+2]的中心窄带示意图。如图6所示,如果分配的是下行的中心窄带,若系统带宽配置NRB为偶数,即系统带宽为10MHz或者20MHz时,则中心窄带为系统带宽中心的6个PRB,即中心窄带的PRB区间为[NRB/2-3,NRB/2+2]。系统带宽为10MHz和20MHz时对应的PRB索引区间分别为[22,27]和[47,52]。
如果分配的窄带不是下行的中心窄带时,窄带的起始PRB的索引为k×G,或者频率最高的PRB的索引为k×G-1,其中,G∈{2,3,4}且k为整数。上述PRB索引区间在区间[0,NRB-1]之内。窄带的PRB索引区间为:[k×G,k×G+5],或者,[k×G-6,k×G-1]。G取值与系统带宽有关,当系统带宽对应的PRB数目∈[11,26]时,G=2;当系统带宽对应的PRB数目∈[27,63]时,G=3;当系统带宽对应的PRB数目∈[64,110]时,G=4。G的值为系统带宽对应的RBG包含的PRB数目。按照这样的方式分配窄带,可以满足窄带的至少一端与一个RBG对齐,使得其尽量避免分割RBG,而不影响legacy UE的调度。
图7是根据本发明优选实施例的G=2时的窄带示意图。图8是根据本发明优选实施例的G=3时的窄带示意图。图9是根据本发明优选实施例的G=4时的窄带示意图。如图7至图9所示,分别给出了RBG或者G等于2、3和4时分配的6个PRB的窄带的示意图,分配给UE的窄带为这些窄带中的全部或者部分窄带。边缘的若干个个 数小于6的PRB,也可以组成一个窄带,分配个UE,如图7至图9中边缘剩余的一个RBG也可以是分配给UE的一个窄带,窄带的PRB索引区间为:[NRB mod G+a×G,NRB-1],其中,NRB为下行系统带宽对应的PRB个数,a∈{0,1,2},图7至图9中的a=0。
当eNB为UE分配多个窄带时,多个窄带中的所有窄带都不重叠,如上述图7至图9所示,当G=4时,两个连续的6个PRB的窄带不重叠,窄带组的PRB索引区间为[4×n,4×n+11],其中,n为非负整数。图10是根据本发明优选实施例的窄带组示意图。如图10所示,从频率最低到最高,每两个窄带组成一个窄带组,窄带组之间没有重叠。由此确保了窄带组的两端均与RBG对齐,进而使得不分割RBG,不影响legacy UE的调度。在优选实施过程中,当为UE分配窄带时,可以将一个窄带组整个分配至UE。
进一步地,窄带组之间的间隔的PRB个数应当是G的整数倍。这里的“间隔”是指频率较低的窄带的最高频率的PRB和频率较高的窄带的频率最低的PRB之间的PRB,比如一个窄带的PRB索引为[0,5],另一个窄带的PRB索引为[8,13],那么间隔为PRB#6和PRB7,一共2个PRB。
当eNB为UE分配多个窄带时,部分或者全部窄带所包含的PRB中存在部分PRB重叠。图11是根据本发明优选实施例的系统带宽为3MHz时的中心频率处的窄带组示意图。图12是根据本发明优选实施例的系统带宽为5MHz时的中心频率处的窄带组示意图。图13是根据本发明优选实施例的系统带宽为10MHz时的中心频率处的窄带组示意图。图14是根据本发明优选实施例的系统带宽为15MHz时的中心频率处的窄带组示意图。图15是根据本发明优选实施例的系统带宽为20MHz时的中心频率处的窄带组示意图。如图11至图15所示,分别提供了系统带宽为3MHz、5MHz、10MHz、15MHz和20MHz时,其中,当系统带宽为奇数时,假设中心窄带为5个PRB,中心窄带和两侧的一个或者两个窄带存在重叠的PRB,将图中示出的包含中心窄带在内的若干个窄带作为一个窄带组,可以看出,窄带组和RBG是对齐的,其满足起始PRB的索引是k×G,并且频率最高的PRB的索引为k×G-1,其中,G∈{2,3,4},k为整数。虽然中心窄带不与RBG对齐,但是通过与两侧的窄带之间存在重叠的PRB,组成窄带组,窄带组是与RBG对齐的,这样,在将窄带组分配给UE时,使得不分割RBG,不影响legacy UE的调度。
除了中心窄带之外,其他窄带所包含的PRB中也可以存在部分PRB重叠。图16是根据本发明优选实施例的系统带宽为5MHz时中心频率外的窄带组的示意图。图17是根据本发明优选实施例的系统带宽是20MHz时中心频率外的窄带组的示意图。如图16和图17所示,分别是系统带宽为5MHz和20MHz时的窄带分配的示意图,图中除 中心窄带外,相邻的两个窄带组成一个窄带组,窄带组内有PRB的重叠,窄带组之间没有PRB的重叠,窄带组和RBG是对齐的,其满足起始PRB的索引是k×G,并且频率最高的PRB的索引为k×G-1,其中,G∈{2,3,4},k为整数。这样,当将窄带组分配至UE时,使得不分割RBG,不影响legacy UE的调度。
需要说明的是,在实际应用过程中不限于上述分配方式,进一步地,窄带组之间的间隔应当是G的整数倍。进一步地,eNB可以将控制信息放置在重叠的全部或者部分PRB上,使得调度开销变小,因为在窄带不重叠的情况下,6个PRB中至少需要有一个PRB传输控制信息,其控制开销为16.7%,而如果两个相邻窄带有1个PRB的重合,控制信息均可以放置在该PRB中,该PRB的控制信息可以调度10个PRB的数据,其控制开销为9.1%。进一步地,控制信息可以只放置于重叠PRB中,UE可以只在重叠的PRB中盲检测控制信息。
eNB分配的窄带可以是预定义的,例如:对于每种系统带宽都有一些固定的窄带分配给UE,eNB和UE都会在分配的窄带上来发送或者接收信号,或者,窄带也可以与小区标识之间存在对应关系,不同的小区标识对应不同的分配的窄带,分配的窄带如上所述。分配的窄带也可以是eNB通知的,例如:对每种系统带宽都定义一个窄带的集合,eNB选择部分窄带并将窄带的索引通知给UE,例如:在上述图15中,一共有5个窄带,可以采用5bit信息通知UE其工作窄带,例如:“00110”表示第3和第4个窄带分配给了该UE。在实际应用过程中,并不限于上述方式。通知信息可以是小区专有的,例如:在SIB中为支持RF带宽比系统带宽小的UE通知其下行工作窄带,通知的下行工作窄带可以是用于传输控制信息的,也可以是用于传输数据信息的,还可以是用于混合传输控制信息和数据信息的。eNB可以在通知的窄带的部分或者全部窄带上按照预设的规则进行跳频传输,UE也按照预设的规则进行跳频接收。跳频的方式可以是每N个子帧跳频到一个窄带上发送,在N个子帧之内在同一窄带上发送。进一步地,考虑到射频调频需要时间,可以在N个子帧发送完之后,间隔N子帧,再发送。实际应用中不限于这样的跳频方式。通知信息同样可以是UE专有的,例如:通过RRC信令通知某个UE其下行工作窄带,通知的下行工作窄带可以是用于传输控制信息的,也可以是用于传输数据信息的,还可以是用于混合传输控制信息和数据信息的。eNB可以在窄带的部分或者全部窄带上按照预设的规则进行跳频传输,UE也可以按照预设的规则进行跳频接收。进一步地,eNB可以为UE通知分配的窄带对应的子帧。
优选实施例二
在该优选实施例中,eNB为UE分配一个或者多个窄带,窄带是从中心窄带向两 边扩展划分成的窄带中的一个或者多个。
如果分配的是下行的中心窄带,与上述优选实施例一中相同,即若系统带宽配置
Figure PCTCN2015095826-appb-000068
为奇数,当系统带宽为3MHz或者5MHz或者15MHz时,中心窄带为系统带宽中心的5个PRB,即PRB索引区间为[(NRB-1)/2-2,(NRB-1)/2+2],如图2所示。3MHz、5MHz和15MHz分别对应的PRB索引区间为[5,9]、[10,14]和[35,39];或者,中心窄带为系统带宽中心的7个PRB,即PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+3],如图3所示。3MHz、5MHz和15MHz分别对应的PRB索引区间为[4,10]、[9,15]和[34,40],边缘的PRB可能未占满,只占用了部分RE;或者,中心窄带为系统带宽中心的6个PRB,即PRB索引区间为[(NRB-1)/2-3,(NRB-1)/2+2]或者(NRB-1)/2-2,(NRB-1)/2+3],如图4和图5所示。3MHz对应的PRB索引区间为[5,10]或者[4,9],5MHz对应的PRB索引区间为[9,14]或者[10,15],15MHz对应的PRB索引区间为[34,39]或者[35,40]。
若系统带宽配置NRB为偶数,即系统带宽为10MHz或者20MHz时,中心窄带为系统带宽中心的6个PRB,即中心窄带的PRB区间为[NRB/2-3,NRB/2+2],如图6所示。系统带宽为10MHz和20MHz时对应的PRB索引区间分别为[22,27]和[47,52]。
当分配的窄带不是下行的中心窄带时,若NRB为奇数,则分配的一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
Figure PCTCN2015095826-appb-000069
Figure PCTCN2015095826-appb-000070
Figure PCTCN2015095826-appb-000071
Figure PCTCN2015095826-appb-000072
Figure PCTCN2015095826-appb-000073
Figure PCTCN2015095826-appb-000074
Figure PCTCN2015095826-appb-000075
Figure PCTCN2015095826-appb-000076
若NRB为偶数,则分配的一个窄带或者多个窄带之一的PRB索引区间为以下之一:
(1)[NRB/2-9-6n,NRB/2-4-6n];
(2)[NRB/2+3+6n,NRB/2+8+6n];
Figure PCTCN2015095826-appb-000077
Figure PCTCN2015095826-appb-000078
其中,NRB为系统带宽对应的PRB个数,n为非负整数,
Figure PCTCN2015095826-appb-000079
Figure PCTCN2015095826-appb-000080
表示向上取整。所述PRB索引区间在区间[0,NRB-1]之内。eNB分配的窄带可以是预定义的,也可以是通知的,与上述优选实施例一类似。进一步地,eNB可以为UE通知分配的窄带对应的子帧。
优选实施例三
在该优选实施例中,eNB为UE分配一个或者多个上行窄带。当为UE分配上行窄带时,应当保证一个上行窄带内至少存在一个完整的4个PRB的SRS窄带。这样,eNB在调度时,可以将UE调度到其需要发送SRS的4个PRB对应的窄带上,这样可以保证UE的数据和SRS都可以发送,而不用放弃其中一个。满足上述条件的上行窄带对应的PRB索引区间为:[4k,4k+5]或者[4k-6,4k-1]或者[4k-1,4k+4],其中,k为整数,PRB索引是指将小区的SRS带宽从频率最低的PRB开始从零编号后的PRB索引,对于频率低于SRS起始位置的PRB,从频率最高到最低依次编号为-1,-2,…。。
下面给出这些窄带的另一种表示方式,其中窄带的PRB索引为将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。
表达式一、满足上述条件的窄带的起始PRB的索引为:
Figure PCTCN2015095826-appb-000081
其中,i∈C,C={0,2},k为整数,mSRS,0为SRS带宽包含的PRB的个数,即SRS的频域范围所包含的PRB的个数,该值是eNB通知的小区专用参数,
Figure PCTCN2015095826-appb-000082
是整个小区的SRS带宽的起始PRB的索引,
Figure PCTCN2015095826-appb-000083
为上行系统带宽对应的PRB个数,取值参考表1.所述的PRB索引区间在区间[0,
Figure PCTCN2015095826-appb-000084
]之内。
假设系统带宽是5M,
Figure PCTCN2015095826-appb-000085
PRB索引分别为:0~24,假设mSRS,0=20,那么小区的SRS带宽的起始RB index为:
Figure PCTCN2015095826-appb-000086
截至PRB索引为2+20-1=21。容纳的4个PRB的SRS带宽分别为:[2,5],[6,9],[10,13],[14,17],[18,21],那么窄带的起始PRB索引可以为:2、4、6、8、10、12、14、16、18、20。
窄带的PRB索引区间为:
Figure PCTCN2015095826-appb-000087
其中,i∈C,C={0,2},k为整数。
图18是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000088
且窄带不重叠时的窄带示意图。如图18所示,SRS区域为32个PRB,分配给UE用于传输PUSCH的窄带为其中的一个或多个。可以看出,每个窄带内均有一个完整的4个PRB的SRS带宽。这样,eNB在调度时,可以将UE调度到其需要发送SRS的4个PRB对应的窄带上,这样可以保证UE的数据和SRS都可以发送,而不用放弃其中一个。但是此种方式还存在一些4个PRB的SRS带宽缺乏对应的窄带,例如:第二个4个PRB的SRS带宽,其不属于任何一个6个PRB的窄带,当UE的SRS跳频到该4个PRB的SRS带宽时,eNB如果将UE的PUSCH调度到第一个6PRB的窄带,那么只有当UE的PUSCH位于该窄带的后4个PRB时,SRS和PUSCH才可能同时发送,这对eNB的调度带来一些限制。因此,窄带之间进行重叠可以解决这个问题。图19是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000089
且窄带重叠时的窄带示意图。如图19所示,两个窄带之间重叠PRB的个数为2,每个4个PRB对应的SRS带宽都在某一个窄带上。将全部或者部分重叠的窄带分配至UE。在实际应用过程中不限于这样的重叠方式,而且不同的两个窄带间重叠的PRB个数也可以不同。
上述窄带可以用于传输PUSCH或者混合传输PUSCH和PUCCH,一种混合传输PUSCH和PUCCH的实例即为边缘的一个PRB传输PUCCH,其余的PRB传输PUSCH。 如果上述的窄带只用于传输PUSCH,传输PUCCH的窄带是一个单独的窄带的话,那么在小区的SRS带宽内,用于传输PUCCH的窄带也应当满足上述条件。在小区的SRS带宽内传输PRACH的窄带也应当满足上述条件,这样可以做到上行数据窄带和控制窄带之间完全相邻。
图20是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000090
且窄带不重叠时的PRACH和PUCCH窄带示意图。图21是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000091
且窄带重叠时的PRACH和PUCCH窄带示意图。如图20和图21所示,其给出了PRACH和PUCCH的分配过程。另外,传输PUCCH的窄带和PUSCH的窄带也可以有重叠。不仅如此,传输PUCCH或者PRACH的窄带也可以位于SRS区域之外。
表达式二、另一种满足上行窄带内至少有一个完整的4个PRB的SRS窄带的上行窄带的起始PRB的索引为:
Figure PCTCN2015095826-appb-000092
其中,k为整数。
窄带的PRB索引区间为:
Figure PCTCN2015095826-appb-000093
其中,k为整数。
图22是SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000094
且窄带不重叠时的窄带示意图。如图22所示,每个窄带内均包含一个完整的4个PRB的SRS带宽。图23是SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000095
且窄带重叠时的窄带示意图。如图23所示,每个窄带内也都包含一个完整的4个PRB的SRS带宽。eNB分配的UE的窄带为所有窄带或者部分窄带。在实际应用过程中,并不限于上述重叠方式,而且不同的两个窄带间重叠的PRB个数也可以不同。
上述窄带可以用于传输PUSCH或者混合传输PUSCH和PUCCH。如果上述的窄带只用于传输PUSCH,传输PUCCH的窄带是一个单独的窄带的话,那么在小区的SRS带宽内,用于传输PUCCH的窄带应当满足:
Figure PCTCN2015095826-appb-000096
其中,k为整数。
窄带的PRB区间为:
Figure PCTCN2015095826-appb-000097
其中,k为整数。
在小区的SRS带宽内传输PRACH的窄带也应当满足上述条件,这样可以做到上行数据窄带和控制窄带之间完全相邻。图24是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000098
且窄带不重叠时的PRACH和PUCCH窄带示意图。图25是根据本发明优选实施例的SRS带宽内的窄带起始PRB的索引为
Figure PCTCN2015095826-appb-000099
且窄带重叠时的PRACH和PUCCH窄带示意图。如图24和图25所示,给出了PRACH和PUCCH的分配过程。另外,传输PUCCH的窄带和PUSCH的窄带也可以有重叠。不仅如此,传输PUCCH或者PRACH的窄带也可以位于SRS区域之外。
eNB分配的窄带可以是预定义的,例如:对于每种系统带宽都有一些固定的窄带分配给UE,eNB和UE都会在分配的窄带上来接收或者发送信号,分配的窄带如上所述。分配的窄带也可以是eNB通知的,例如:对每种系统带宽都定义一个窄带的集合,eNB选择部分窄带并将窄带的索引通知给UE。在实际应用过程中并不限于上述方式。通知信息可以是小区专有的,例如:在SIB中为支持RF带宽比系统带宽小的UE通知其上行工作窄带,通知的上行工作窄带可以是用于传输PUSCH的,也可以是用于传输PUCCH的,还可以是用于传输PRACH的,亦可以是用于混合传输PUSCH和PUCCH的。UE可以在通知的窄带的部分或者全部窄带上按照预设的规则进行跳频传输,eNB也可以按照预设的规则进行跳频接收。通知信息也可以是UE专有的,例如:通过RRC信令通知某个UE其上行工作窄带,通知的上行工作窄带可以是用于传输PUSCH的,也可以是用于传输PUCCH的,还可以是用于传输PRACH的,亦可以是用于混合传输PUSCH和PUCCH的。UE可以在窄带的部分或者全部窄带上按照预设的规则进行跳频传输,eNB也可以按照预设的规则进行跳频接收。进一步地,eNB可以为UE通知分配的窄带对应的子帧。
优选实施例四
在该优选实施例中,eNB可以为UE分配的窄带包含上行窄带和下行窄带,其中,上行窄带有一个或者多个,下行窄带也有一个或者多个。上行窄带和下行窄带所需要满足的条件可以参照上述优选实施例一至优选实施例三,此处不再赘述。
优选实施例五
对于配置了传输模式9或者10的UE,如果配置为PMI/RI上报,则UE会假设多个资源块RB的预编码粒度。此外,UE还会假设在一个预编码块组(precoding block  group,简称为PRG)中的所有PRB使用了相同的预编码。与UE相类似,基站会在一个PRG中的所有PRB使用相同的预编码。
在相关技术中,PRG通常是基于系统带宽的。
然而,与现有技术不同,在该优选实施例中,由于UE是在一个窄带或多个窄带中的一个窄带上传输数据的,CSI反馈也是基于一个窄带或多个窄带中的一个窄带来完成的,因此,PRG应由一个窄带或多个窄带中的一个窄带来确定,在上述一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG。如果M对X取模大于零,那么最后一个PRG的大小为
Figure PCTCN2015095826-appb-000100
其中,
Figure PCTCN2015095826-appb-000101
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带包含的PRB个数。比如,假设窄带一共有7个PRB,频率最低到最高的索引分别为0、1、2……6,X=3,那么从最低的PRB开始,每3个PRB为一个PRG,PRB#0、1、2为一个PRG,PRB#3、4、5为一个PRG,PRB#6为一个PRG.或者从最高的PRB开始,每3个PRB为一个PRG,PRB#4、5、6为一个PRG,PRB#1、2、3为一个PRG,PRB#0为一个PRG.
X的取值可以为以下之一:
(1)X∈{1,2,3,4};
具体地,假设一个窄带或多个窄带中的一个窄带的大小为6个PRB,索引从频率最低到最高重新编号为0、1、2、……、5,那么每两个PRB为一个PRG,即PRB#0和1为一个PRG,PRB#2和3为一个PRG,PRB#4和5为一个PRG,或者,每三个PRB为一个PRG,即PRB#0、1和2为一个PRG,以及PRB#3、4和5为一个PRG。
(2)X为M/2或者M/2向下取整,或者,为小于M/2的正整数。
(3)X为S/2或者S/2向下取整,或者,为小于M/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数,例如:当系统带宽为20MHz时,S=8。
(4)上述(1)、(2)和(3)中任意两个值的最小值。
图26是根据本发明实施例的窄带分配的获取方法的流程图。如图26所示,该方法可以包括以下步骤:
步骤S2602:获取基站分配的一个或多个窄带,其中,多个窄带中的每个窄带所包含的PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
优选地,当一个窄带或多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则中心窄带的PRB索引区间为以下之一:
(1)[(NRB-1)/2-2,(NRB-1)/2+2];
(2)[(NRB-1)/2-3,(NRB-1)/2+3];
(3)[(NRB-1)/2-3,(NRB-1)/2+2];
(4)[(NRB-1)/2-2,(NRB-1)/2+3];
若NRB为偶数,则中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
其中,NRB为系统带宽对应的PRB个数,PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。所述PRB索引的取值范围为{0,1,2,…,NRB}.
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
(1)[k×G,k×G+5];
(2)[k×G-6,k×G-1];
(3)[k×G-1,k×G+4];
(4)[NRB-NRB mod G-a×G,NRB-1];
其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,所述PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与系统带宽相关。
优选地,在一个窄带或多个窄带的其中之一为下行的非中心窄带的情况下,当系统带宽对应的PRB数目∈[11,26]时,G=2;当系统带宽对应的PRB数目∈[27,63]时,G=3;当系统带宽对应的PRB数目∈[64,110]时,G=4。
优选地,当G=4时,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带 组由两个连续的窄带组成,两个连续的窄带中的每个窄带包含连续的6个PRB,其中,两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
优选地,当一个窄带或多个窄带的其中之一为下行窄带但非下行中心窄带时,若NRB为奇数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
Figure PCTCN2015095826-appb-000102
Figure PCTCN2015095826-appb-000103
Figure PCTCN2015095826-appb-000104
Figure PCTCN2015095826-appb-000105
Figure PCTCN2015095826-appb-000106
Figure PCTCN2015095826-appb-000107
Figure PCTCN2015095826-appb-000108
Figure PCTCN2015095826-appb-000109
若NRB为偶数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
(1)[NRB/2-9-6n,NRB/2-4-6n];
(2)[NRB/2+3+6n,NRB/2+8+6n];
Figure PCTCN2015095826-appb-000110
Figure PCTCN2015095826-appb-000111
其中,NRB为系统带宽对应的PRB个数,n为非负整数,
Figure PCTCN2015095826-appb-000112
Figure PCTCN2015095826-appb-000113
表示向上取整。
优选地,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+b×G],其中,n为非负整数,b为正整数。
优选地,除中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
优选地,在多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
优选地,PRG可以由一个窄带或多个窄带中的一个窄带确定。
优选地,在一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
Figure PCTCN2015095826-appb-000114
其中,
Figure PCTCN2015095826-appb-000115
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带所包含的PRB个数。
优选地,确定X的因素可以包括但不限于以下至少之一:
(1)一个窄带或多个窄带中的一个窄带包含的PRB个数;
(2)一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
优选地,X满足以下条件之一:
条件1、X∈{1,2,3,4};
条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;
条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;
条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
图27是根据本发明实施例的窄带的分配装置的结构框图。如图27所示,该窄带 的分配装置可以包括:分配模块10,设置为为用户设备UE分配一个或多个窄带,其中,多个窄带中的每个窄带所包含的物理资源块PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
采用如图27所示的装置,解决了相关技术中所提供的窄带分配方式相对单一,缺乏灵活性的问题,进而降低资源分配的指示开销,并且不分割RBG,不对legacy UE的调度带来影响。
优选地,当一个窄带或多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则中心窄带的PRB索引区间为以下之一:
(1)[(NRB-1)/2-2,(NRB-1)/2+2];
(2)[(NRB-1)/2-3,(NRB-1)/2+3];
(3)[(NRB-1)/2-3,(NRB-1)/2+2];
(4)[(NRB-1)/2-2,(NRB-1)/2+3];
若NRB为偶数,则中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
其中,NRB为系统带宽对应的PRB个数,PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。
优选地,分配模块,设置为当一个窄带或多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
(1)[k×G,k×G+5];
(2)[k×G-6,k×G-1];
(3)[k×G-1,k×G+4];
(4)[NRB-NRB mod G-a×G,NRB-1];
其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
优选地,分配模块,设置为当一个窄带或多个窄带的其中之一为下行窄带但非下 行的中心窄带时,G的取值与系统带宽相关。
优选地,分配模块,设置为在一个窄带或多个窄带的其中之一为下行的非中心窄带的情况下,当系统带宽对应的PRB数目∈[11,26]时,G=2;当系统带宽对应的PRB数目∈[27,63]时,G=3;当系统带宽对应的PRB数目∈[64,110]时,G=4。
优选地,分配模块,设置为在G=4时,为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,两个连续的窄带中的每个窄带包含连续的6个PRB,其中,两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
优选地,分配模块,设置为当一个窄带或多个窄带的其中之一为下行窄带但非下行中心窄带时,若NRB为奇数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
Figure PCTCN2015095826-appb-000116
Figure PCTCN2015095826-appb-000117
Figure PCTCN2015095826-appb-000118
Figure PCTCN2015095826-appb-000119
Figure PCTCN2015095826-appb-000120
Figure PCTCN2015095826-appb-000121
Figure PCTCN2015095826-appb-000122
Figure PCTCN2015095826-appb-000123
若NRB为偶数,则一个窄带或多个窄带的其中之一的PRB索引区间为以下之一:
(1)[NRB/2-9-6n,NRB/2-4-6n];
(2)[NRB/2+3+6n,NRB/2+8+6n];
Figure PCTCN2015095826-appb-000124
Figure PCTCN2015095826-appb-000125
其中,NRB为系统带宽对应的PRB个数,n为非负整数,
Figure PCTCN2015095826-appb-000126
Figure PCTCN2015095826-appb-000127
表示向上取整。
优选地,分配模块,设置为为UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+11b×G],其中,n为非负整数,b为正整数。
优选地,除中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
优选地,在多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
优选地,在一个或多个窄带为下行窄带时,下行窄带为传输的内容可以包括但不限于以下至少之一:
(1)下行控制信息;
(2)下行数据。
优选地,在一个或多个窄带为上行窄带时,上行窄带传输的内容可以包括但不限于以下之一:
(1)物理上行共享信道(PUSCH);
(2)物理上行控制信道(PUCCH);
(3)物理随机接入信道(PRACH)。
优选地,一个或多个窄带的分配方式可以包括以下之一:预定义的、通过基站通知的。
优选地,通过基站通知的分配方式可以包括以下之一:
(1)基站采用小区专有信息进行通知;
(2)基站采用UE专有信息进行通知。
优选地,基站或者UE在一个或多个窄带上跳频发送下行/上行信息。
优选地,基站为UE指示分配一个或多个窄带对应的子帧信息。
优选地,PRG可以由一个窄带或多个窄带中的一个窄带确定。
优选地,在一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
Figure PCTCN2015095826-appb-000128
其中,
Figure PCTCN2015095826-appb-000129
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带所包含的PRB个数。
优选地,确定X的因素可以包括但不限于以下至少之一:
(1)一个窄带或多个窄带中的一个窄带包含的PRB个数;
(2)一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
优选地,X满足以下条件之一:
条件1、X∈{1,2,3,4};
条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;
条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;
条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
图28是根据本发明实施例的窄带的分配装置的结构框图。如图28所示,该窄带的分配装置可以包括:获取模块20,设置为获取基站分配的一个或多个窄带,其中,多个窄带中的每个窄带所包含的PRB均不重叠,或者,多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
优选地,PRG可以由一个窄带或多个窄带中的一个窄带确定。
优选地,在一个窄带或多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
Figure PCTCN2015095826-appb-000130
其中,
Figure PCTCN2015095826-appb-000131
表示向下取整,第一个PRB为频率最低的PRB或者最高的PRB,M为一个窄带或多个窄带中的一个窄带所包含的PRB个数。
优选地,确定X的因素可以包括但不限于以下至少之一:
(1)一个窄带或多个窄带中的一个窄带包含的PRB个数;
(2)一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
优选地,X满足以下条件之一:
条件1、X∈{1,2,3,4};
条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;
条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为一个窄带或多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;
条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
从以上的描述中,可以看出,上述实施例实现了如下技术效果(需要说明的是这些效果是某些优选实施例可以达到的效果):MTC设备通常为低成本的设备,具有支持的RF带宽比较小、单接收天线等特征,其RF接收带宽一般为1.4MHz。对于系统带宽大于1.4MHz的情况而言,采用本发明实施例所提供的技术方案,MTC UE定义多个下行的工作窄带,可以使得MTC UE能够在这些窄带上接收下行控制信息和/或数据,并且为MTC UE划分了窄带,可以进一步地降低资源分配的指示开销,并且不分割RBG,不对legacy UE的调度带来影响。此外,采用本发明实施例所提供的技术方案,MTC UE定义多个上行的工作窄带,这样可以保证一个上行窄带内至少有一个完整的4个PRB的SRS窄带。由此eNB在调度时,可以将UE调度到其需要发送SRS的4个PRB对应的窄带上,这样可以保证UE的数据和SRS都可以发送,而不用放弃其中一个。
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以 将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
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。
工业实用性
如上所述,本发明实施例提供的一种窄带的分配、窄带分配的获取方法和装置具有以下有益效果:能够降低上下行资源分配的指示开销,并且下行窄带不分割RBG,不对legacy UE的调度带来影响,上行窄带包含一个4个PRB的SRS带宽,使得eNB可以调度UE发送数据的同时,不用放弃发送SRS。

Claims (53)

  1. 一种窄带的分配方法,包括:
    为用户设备UE分配一个或多个窄带,其中,所述多个窄带中的每个窄带所包含的物理资源块PRB均不重叠,或者,所述多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
  2. 根据权利要求1所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则所述中心窄带的PRB索引区间为以下之一:
    [(NRB-1)/2-2,(NRB-1)/2+2];
    [(NRB-1)/2-3,(NRB-1)/2+3];
    [(NRB-1)/2-3,(NRB-1)/2+2];
    [(NRB-1)/2-2,(NRB-1)/2+3];
    若NRB为偶数,则所述中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
    其中,NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。
  3. 根据权利要求1所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    [k×G,k×G+5];
    [k×G-6,k×G-1];
    [k×G-1,k×G+4];
    [NRB-NRB mod G-a×G,NRB-1];
    其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,所述PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
  4. 根据权利要求3所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与所述系统带宽相关。
  5. 根据权利要求4所述的方法,其中,在所述一个窄带或所述多个窄带的其中之一为下行的非中心窄带的情况下,当所述系统带宽对应的PRB数目∈[11,26]时,G=2;当所述系统带宽对应的PRB数目∈[27,63]时,G=3;当所述系统带宽对应的PRB数目∈[64,110]时,G=4。
  6. 根据权利要求3所述的方法,其中,当G=4时,为所述UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,所述两个连续的窄带中的每个窄带包含连续的6个PRB,其中,所述两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
  7. 根据权利要求1所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带时,若NRB为奇数,则所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    Figure PCTCN2015095826-appb-100001
    Figure PCTCN2015095826-appb-100002
    Figure PCTCN2015095826-appb-100003
    Figure PCTCN2015095826-appb-100004
    Figure PCTCN2015095826-appb-100005
    Figure PCTCN2015095826-appb-100006
    Figure PCTCN2015095826-appb-100007
    Figure PCTCN2015095826-appb-100008
    若NRB为偶数,则所述一个窄带或所述多个窄带的其中之一的PRB索引区间 为以下之一:
    [NRB/2-9-6n,NRB/2-4-6n];
    [NRB/2+3+6n,NRB/2+8+6n];
    Figure PCTCN2015095826-appb-100009
    Figure PCTCN2015095826-appb-100010
    其中,NRB为系统带宽对应的PRB个数,n为非负整数,
    Figure PCTCN2015095826-appb-100011
    Figure PCTCN2015095826-appb-100012
    表示向上取整。
  8. 根据权利要求1所述的方法,其中,为所述UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+b×G],其中,n为非负整数,b为正整数。
  9. 根据权利要求6或8所述的方法,其中,除所述中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
  10. 根据权利要求1至8中任一项所述的方法,其中,在所述多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
  11. 根据权利要求1至8中任一项所述的方法,其中,在所述一个窄带或所述多个窄带的其中之一为下行窄带时,所述下行窄带传输的内容包括以下至少之一:
    下行控制信息;
    下行数据。
  12. 根据权利要求1至8中任一项所述的方法,其中,在所述一个或多个窄带为上行窄带时,所述上行窄带传输的内容包括以下至少之一:
    物理上行共享信道PUSCH;
    物理上行控制信道PUCCH;
    物理随机接入信道PRACH。
  13. 根据权利要求1至8中任一项所述的方法,其中,所述一个或多个窄带的分配方式包括以下之一:
    预定义的、通过基站通知的。
  14. 根据权利要求13所述的方法,其中,通过所述基站通知的分配方式包括以下之一:
    所述基站采用小区专有信息进行通知;
    所述基站采用UE专有信息进行通知。
  15. 根据权利要求1至8中任一项所述的方法,其中,基站或者所述UE在所述一个或多个窄带上跳频发送下行/上行信息。
  16. 根据权利要求1至8中任一项所述的方法,其中,基站为所述UE指示分配所述一个或多个窄带对应的子帧信息。
  17. 根据权利要求1所述的方法,其中,预编码块组PRG由所述一个窄带或所述多个窄带中的一个窄带确定。
  18. 根据权利要求1或17所述的方法,其中,在所述一个窄带或所述多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
    Figure PCTCN2015095826-appb-100013
    其中,
    Figure PCTCN2015095826-appb-100014
    表示向下取整,所述第一个PRB为频率最低的PRB或者最高的PRB,M为所述一个窄带或所述多个窄带中的一个窄带所包含的PRB个数。
  19. 根据权利要求18所述的方法,其中,确定所述X的因素包括以下至少之一:所述一个窄带或所述多个窄带中的一个窄带包含的PRB个数、所述一个窄带或所述多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
  20. 根据权利要求18或19所述的方法,其中,所述X满足以下条件之一:
    条件1、X∈{1,2,3,4};
    条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;
    条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为所述一个窄带或所述多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;
    条件4、上述条件1,条件2和条件3中任意两个条件得到的X的取值的最小值。
  21. 一种窄带分配的获取方法,包括:
    获取基站分配的一个或多个窄带,其中,所述多个窄带中的每个窄带所包含的物理资源块PRB均不重叠,或者,所述多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
  22. 根据权利要求21所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则所述中心窄带的PRB索引区间为以下之一:
    [(NRB-1)/2-2,(NRB-1)/2+2];
    [(NRB-1)/2-3,(NRB-1)/2+3];
    [(NRB-1)/2-3,(NRB-1)/2+2];
    [(NRB-1)/2-2,(NRB-1)/2+3];
    若NRB为偶数,则所述中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
    其中,NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引。
  23. 根据权利要求21所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    [k×G,k×G+5];
    [k×G-6,k×G-1];
    [k×G-1,k×G+4];
    [NRB-NRB mod G-a×G,NRB-1];
    其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,所述PRB索引区间中的PRB索引对于上行 是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
  24. 根据权利要求23所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与所述系统带宽相关。
  25. 根据权利要求24所述的方法,其中,在所述一个窄带或所述多个窄带的其中之一为下行的非中心窄带的情况下,当所述系统带宽对应的PRB数目∈[11,26]时,G=2;当所述系统带宽对应的PRB数目∈[27,63]时,G=3;当所述系统带宽对应的PRB数目∈[64,110]时,G=4。
  26. 根据权利要求23所述的方法,其中,当G=4时,为所述UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,所述两个连续的窄带中的每个窄带包含连续的6个PRB,其中,所述两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
  27. 根据权利要求21所述的方法,其中,当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带时,若NRB为奇数,则所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    Figure PCTCN2015095826-appb-100015
    Figure PCTCN2015095826-appb-100016
    Figure PCTCN2015095826-appb-100017
    Figure PCTCN2015095826-appb-100018
    Figure PCTCN2015095826-appb-100019
    Figure PCTCN2015095826-appb-100020
    Figure PCTCN2015095826-appb-100021
    Figure PCTCN2015095826-appb-100022
    若NRB为偶数,则所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    [NRB/2-9-6n,NRB/2-4-6n];
    [NRB/2+3+6n,NRB/2+8+6n];
    Figure PCTCN2015095826-appb-100023
    Figure PCTCN2015095826-appb-100024
    其中,NRB为系统带宽对应的PRB个数,n为非负整数,
    Figure PCTCN2015095826-appb-100025
    Figure PCTCN2015095826-appb-100026
    表示向上取整。
  28. 根据权利要求21所述的方法,其中,为所述UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引区间为[4×n,4×n+b×G],其中,n为非负整数,b为正整数。
  29. 根据权利要求26或28所述的方法,其中,除所述中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
  30. 根据权利要求21至29中任一项所述的方法,其中,在所述多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
  31. 根据权利要求21所述的方法,其中,预编码块组PRG由所述一个窄带或所述多个窄带中的一个窄带确定。
  32. 根据权利要求21或31所述的方法,其中,在所述一个窄带或所述多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
    Figure PCTCN2015095826-appb-100027
    其中,
    Figure PCTCN2015095826-appb-100028
    表示向下取整,所述第一个PRB为频率最低的PRB或者最高的PRB,M为所述一个窄带或 所述多个窄带中的一个窄带所包含的PRB个数。
  33. 根据权利要求32所述的方法,其中,确定所述X的因素包括以下至少之一:所述一个窄带或所述多个窄带中的一个窄带包含的PRB个数、所述一个窄带或所述多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
  34. 根据权利要求32或33所述的方法,其中,所述X满足以下条件之一:
    条件1、X∈{1,2,3,4};
    条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;
    条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为所述一个窄带或所述多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;
    条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
  35. 一种窄带的分配装置,包括:
    分配模块,设置为为用户设备UE分配一个或多个窄带,其中,所述多个窄带中的每个窄带所包含的物理资源块PRB均不重叠,或者,所述多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
  36. 根据权利要求35所述的装置,其中,所述分配模块,设置为当所述一个窄带或所述多个窄带的其中之一为下行的中心窄带时,若NRB为奇数,则所述中心窄带的PRB索引区间为以下之一:
    [(NRB-1)/2-2,(NRB-1)/2+2];
    [(NRB-1)/2-3,(NRB-1)/2+3];
    [(NRB-1)/2-3,(NRB-1)/2+2];
    [(NRB-1)/2-2,(NRB-1)/2+3];
    若NRB为偶数,则所述中心窄带的PRB索引区间为:[NRB/2-3,NRB/2+2];
    其中,NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引是指将下行系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB 索引。
  37. 根据权利要求35所述的装置,其中,所述分配模块,设置为当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带或者为上行窄带时,所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    [k×G,k×G+5];
    [k×G-6,k×G-1];
    [k×G-1,k×G+4];
    [NRB-NRB mod G-a×G,NRB-1];
    其中,G∈{2,3,4},a∈{0,1,2},NRB为系统带宽对应的PRB个数,所述PRB索引区间中的PRB索引对于下行是指将系统带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,,所述PRB索引区间中的PRB索引对于上行是指小区的SRS带宽内的PRB按照频率最低到最高的顺序从零开始编号后的PRB索引,k为非负整数。
  38. 根据权利要求37所述的装置,其中,所述分配模块,设置为当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行的中心窄带时,G的取值与所述系统带宽相关。
  39. 根据权利要求38所述的装置,其中,所述分配模块,设置为在所述一个窄带或所述多个窄带的其中之一为下行的非中心窄带的情况下,当所述系统带宽对应的PRB数目∈[11,26]时,G=2;当所述系统带宽对应的PRB数目∈[27,63]时,G=3;当所述系统带宽对应的PRB数目∈[64,110]时,G=4。
  40. 根据权利要求37所述的装置,其中,所述分配模块,设置为在G=4时,为所述UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个连续的窄带组成,所述两个连续的窄带中的每个窄带包含连续的6个PRB,其中,所述两个连续的窄带所包含的PRB不重叠,每个窄带组的PRB索引区间为[4×n,4×n+11],n为非负整数。
  41. 根据权利要求35所述的装置,其中,所述分配模块,设置为当所述一个窄带或所述多个窄带的其中之一为下行窄带但非下行中心窄带时,若NRB为奇数,则所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    Figure PCTCN2015095826-appb-100029
    Figure PCTCN2015095826-appb-100030
    Figure PCTCN2015095826-appb-100031
    Figure PCTCN2015095826-appb-100032
    Figure PCTCN2015095826-appb-100033
    Figure PCTCN2015095826-appb-100034
    Figure PCTCN2015095826-appb-100035
    Figure PCTCN2015095826-appb-100036
    若NRB为偶数,则所述一个窄带或所述多个窄带的其中之一的PRB索引区间为以下之一:
    [NRB/2-9-6n,NRB/2-4-6n];
    [NRB/2+3+6n,NRB/2+8+6n];
    Figure PCTCN2015095826-appb-100037
    Figure PCTCN2015095826-appb-100038
    其中,NRB为系统带宽对应的PRB个数,n为非负整数,
    Figure PCTCN2015095826-appb-100039
    Figure PCTCN2015095826-appb-100040
    表示向上取整。
  42. 根据权利要求35所述的装置,其中,所述分配模块,设置为为所述UE分配的多个窄带包括一个或者多个窄带组,每个窄带组由两个或两个以上窄带组成,每个窄带组内相邻窄带所包含的PRB中存在部分PRB重叠,每个窄带组的PRB索引 区间为[4×n,4×n+11b×G],其中,n为非负整数,b为正整数。
  43. 根据权利要求40或42所述的装置,其中,除所述中心窄带之外的窄带或者窄带组之间的间隔的PRB个数为G的整数倍。
  44. 根据权利要求35至42中任一项所述的装置,其中,在所述多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠的情况下,控制信息映射到重叠的PRB的部分或全部资源上。
  45. 根据权利要求35至42中任一项所述的装置,其中,在所述一个或多个窄带为下行窄带时,所述下行窄带为传输的内容包括以下至少之一:
    下行控制信息;
    下行数据。
  46. 根据权利要求35至42中任一项所述的装置,其中,在所述一个或多个窄带为上行窄带时,所述上行窄带传输的内容包括以下至少之一:
    物理上行共享信道PUSCH;
    物理上行控制信道PUCCH;
    物理随机接入信道PRACH。
  47. 根据权利要求35至42中任一项所述的装置,其中,所述一个或多个窄带的分配方式包括以下之一:
    预定义的、通过基站通知的。
  48. 根据权利要求47所述的装置,其中,通过所述基站通知的分配方式包括以下之一:
    所述基站采用小区专有信息进行通知;
    所述基站采用UE专有信息进行通知。
  49. 根据权利要求35所述的装置,其中,预编码块组PRG由所述一个窄带或所述多个窄带中的一个窄带确定。
  50. 根据权利要求35或49所述的装置,其中,在所述一个窄带或所述多个窄带中的一个窄带中,从第一个PRB开始,每X个连续PRB为一个PRG,如果M对X取模大于零,则最后一个PRG的大小为:
    Figure PCTCN2015095826-appb-100041
    其中,
    Figure PCTCN2015095826-appb-100042
    表示向下取整,所述第一个PRB为频率最低的PRB或者最高的PRB,M为所述一个窄带或 所述多个窄带中的一个窄带所包含的PRB个数。
  51. 根据权利要求50所述的装置,其中,确定所述X的因素包括以下至少之一:所述一个窄带或所述多个窄带中的一个窄带包含的PRB个数、所述一个窄带或所述多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数。
  52. 根据权利要求50或51所述的方法,其中,所述X满足以下条件之一:
    条件1、X∈{1,2,3,4};
    条件2、X为M/2或者M/2向下取整,或者为小于等于M/2的正整数;
    条件3、X为小于等于S/2或者S/2向下取整,或者为小于等于S/2的正整数,其中,S为所述一个窄带或所述多个窄带中的一个窄带所在的系统带宽对应的用于CSI上报的子带包含的PRB个数;
    条件4、上述条件1,条件2和条件3中任意两个两个条件得到的X的取值的最小值。
  53. 一种窄带分配的获取装置,包括:
    获取模块,设置为获取基站分配的一个或多个窄带,其中,所述多个窄带中的每个窄带所包含的物理资源块PRB均不重叠,或者,所述多个窄带中的部分或全部窄带所包含的PRB中存在部分PRB重叠。
PCT/CN2015/095826 2014-12-31 2015-11-27 窄带的分配、窄带分配的获取方法和装置 WO2016107351A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP15875030.7A EP3242516B1 (en) 2014-12-31 2015-11-27 Narrowband allocation method and device, and narrowband allocation acquiring method and device
US15/638,676 US10575281B2 (en) 2014-12-31 2017-06-30 Method and device for narrowband allocation, and method and device for acquiring narrowband allocation

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201410856124 2014-12-31
CN201410856124.X 2014-12-31
CN201510250603.1 2015-05-15
CN201510250603.1A CN106211334B (zh) 2014-12-31 2015-05-15 窄带的分配、窄带分配的获取方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US15/638,676 Continuation US10575281B2 (en) 2014-12-31 2017-06-30 Method and device for narrowband allocation, and method and device for acquiring narrowband allocation

Publications (1)

Publication Number Publication Date
WO2016107351A1 true WO2016107351A1 (zh) 2016-07-07

Family

ID=56284187

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/095826 WO2016107351A1 (zh) 2014-12-31 2015-11-27 窄带的分配、窄带分配的获取方法和装置

Country Status (1)

Country Link
WO (1) WO2016107351A1 (zh)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110167150A (zh) * 2018-02-12 2019-08-23 中兴通讯股份有限公司 一种资源分配的方法和装置
CN112352406A (zh) * 2018-06-28 2021-02-09 株式会社Ntt都科摩 用户终端以及无线通信方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102387587A (zh) * 2010-08-30 2012-03-21 电信科学技术研究院 一种资源分配方法及装置
CN102958133A (zh) * 2011-08-25 2013-03-06 华为技术有限公司 接入通信系统的方法、下行信息发送方法、终端及基站
US20130077584A1 (en) * 2011-09-26 2013-03-28 Electronics And Telecommunications Research Institute Method for generating random access signal of machine type communication device using narrow bandwidth
CN103379552A (zh) * 2012-04-24 2013-10-30 华为技术有限公司 一种在宽带系统中支持窄带通信的方法及装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102387587A (zh) * 2010-08-30 2012-03-21 电信科学技术研究院 一种资源分配方法及装置
CN102958133A (zh) * 2011-08-25 2013-03-06 华为技术有限公司 接入通信系统的方法、下行信息发送方法、终端及基站
US20130077584A1 (en) * 2011-09-26 2013-03-28 Electronics And Telecommunications Research Institute Method for generating random access signal of machine type communication device using narrow bandwidth
CN103379552A (zh) * 2012-04-24 2013-10-30 华为技术有限公司 一种在宽带系统中支持窄带通信的方法及装置

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110167150A (zh) * 2018-02-12 2019-08-23 中兴通讯股份有限公司 一种资源分配的方法和装置
CN112352406A (zh) * 2018-06-28 2021-02-09 株式会社Ntt都科摩 用户终端以及无线通信方法
CN112352406B (zh) * 2018-06-28 2024-03-01 株式会社Ntt都科摩 用户终端以及无线通信方法

Similar Documents

Publication Publication Date Title
US10575281B2 (en) Method and device for narrowband allocation, and method and device for acquiring narrowband allocation
US11445536B2 (en) Downlink control information transmission method
US11419115B2 (en) Method and apparatus of data transmission in next generation cellular networks
US10382969B2 (en) Resource allocation design for low cost machine-type communication UE
CN109479277B (zh) 使用参数集的发送方法和装置以及调度方法和装置
US20200213161A1 (en) Reference signal transmission and parameter sending methods, device, terminal and base station
WO2016161917A1 (zh) 一种实现资源分配的方法和装置
EP3826211A1 (en) Signal transmission method, apparatus, device, and computer storage medium
US11546113B2 (en) Resource allocation signaling
EP4096137A1 (en) Radio node, wireless device and methods for carrier aggregation control information
US20200120545A1 (en) Resource configuration method, apparatus, and system
WO2016107286A1 (zh) 探测参考信号srs发送方法、装置及接收方法、装置
CN116527209A (zh) 使用参数集的发送方法和装置以及使用参数集的调度方法和装置
US11258571B2 (en) Downlink control information transmission method, apparatus, and system
WO2016107351A1 (zh) 窄带的分配、窄带分配的获取方法和装置
WO2017028071A1 (zh) 下行控制信息的接收、发送方法及装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15875030

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

REEP Request for entry into the european phase

Ref document number: 2015875030

Country of ref document: EP