WO2017166901A1 - 一种上行传输方法及装置 - Google Patents

一种上行传输方法及装置 Download PDF

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Publication number
WO2017166901A1
WO2017166901A1 PCT/CN2017/070961 CN2017070961W WO2017166901A1 WO 2017166901 A1 WO2017166901 A1 WO 2017166901A1 CN 2017070961 W CN2017070961 W CN 2017070961W WO 2017166901 A1 WO2017166901 A1 WO 2017166901A1
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Prior art keywords
frequency domain
domain resource
uplink transmission
resource
pilot
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PCT/CN2017/070961
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English (en)
French (fr)
Inventor
高雪娟
郑方政
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电信科学技术研究院
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Publication of WO2017166901A1 publication Critical patent/WO2017166901A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0096Indication of changes in allocation

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to an uplink transmission method and apparatus.
  • the LTE (Long Term Evolution) FDD (Frequency Division Duplexing) system in the related art uses frame structure type 1 (FS1), and its structure is as shown in FIG. 1.
  • FS1 frame structure type 1
  • the uplink and downlink transmissions use different carrier frequencies, and both the uplink and downlink transmissions use the same frame structure.
  • a 10ms-length radio frame contains 10 1ms subframes, each sub-frame is divided into 0.5ms long time slots, and the transmission time interval (TTI, Transmission Time Interval) of uplink and downlink data transmission.
  • TTI Transmission Time Interval
  • the LTE TDD (TimeDivision Duplex) system in the related art uses frame structure type 2 (FS2), and its structure is as shown in FIG. 2.
  • FS2 frame structure type 2
  • uplink and downlink transmissions use different subframes or different time slots on the same frequency.
  • Each 10 ms radio frame in FS2 consists of two 5 ms half frames, each of which contains five subframes of 1 ms length.
  • the sub-frames in FS2 are classified into three types: downlink sub-frames, uplink sub-frames, and special sub-frames.
  • Each special sub-frame consists of a downlink transmission time slot (DwPTS, Downlink Pilot Time Slot), a guard interval (GP, Guard Period), and The uplink transmission time slot (UpPTS, Uplink Pilot Time Slot) is composed of three parts.
  • the DwPTS can transmit the downlink pilot, the downlink service data, and the downlink control signaling; the GP does not transmit any signal; the UpPTS only transmits the random access and sounding reference signal (SRS), and cannot transmit the uplink service or the uplink control information.
  • Each field includes at least one downlink subframe and at least one uplink subframe, and at most one special subframe.
  • Table 1 The configuration of the seven types of uplink and downlink subframes executed in FS2 is shown in Table 1.
  • LTE PUSCH Physical Uplink Shared Control Channel
  • pilots in one subframe ie, reference symbols, or DMRS (DeModulation Reference Signal), used for data demodulation
  • structure such as Figure 3a and Figure 3b.
  • regular CP Cyclic Prefix
  • the 4th symbol in each slot in each subframe is used to transmit pilots, and the remaining symbols are used to transmit data.
  • extended CP in each subframe
  • the third symbol in each slot is used to transmit pilots and the remaining symbols are used to transmit data.
  • the uplink pilot is a terminal-specific pilot, which is generated according to the actual bandwidth size scheduled by the PUSCH.
  • each column of pilots can achieve the same sharing of the same resources by cyclically shifting the same pilot base sequence.
  • channel transmission in the related art is defined in units of subframes, and does not involve a transmission structure shorter than 1 ms.
  • the purpose of the present disclosure is to provide an uplink transmission method and apparatus, which solves the problem that the transmission time interval is shortened in the related art, and there is no clear data transmission method, which may result in incorrect demodulation after data transmission.
  • an uplink transmission method including:
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the second frequency domain resource is:
  • the uplink transmission bandwidth of the system or the number of resource blocks included in the system uplink transmission bandwidth, or the number of subcarriers included in the system uplink transmission bandwidth, or the number of resource units included in the system uplink transmission bandwidth;
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is:
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the second frequency domain resource is:
  • the configuration signaling is:
  • the uplink transmission method before the transmitting the pilot on the second frequency domain resource, the uplink transmission method further includes:
  • the disclosure also provides an uplink transmission apparatus, including:
  • a first processing module configured to receive a first downlink control channel, where the first downlink control channel is used to carry scheduling information of the first uplink shared channel, and is determined according to scheduling information carried by the first downlink control channel a first frequency domain resource for transmitting a first uplink shared channel;
  • a first determining module configured to determine, according to an indication of a pre-agreed and/or configuration signaling, a second frequency domain resource for transmitting a pilot
  • a first transmission module configured to transmit the first uplink shared channel on the first frequency domain resource, and transmit a pilot of the first uplink shared channel on the second frequency domain resource;
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the second frequency domain resource is:
  • the uplink transmission bandwidth of the system or the number of resource blocks included in the system uplink transmission bandwidth, or the number of subcarriers included in the system uplink transmission bandwidth, or the number of resource units included in the system uplink transmission bandwidth;
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is:
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the second frequency domain resource is:
  • the configuration signaling is:
  • the uplink transmission device further includes:
  • a first acquiring module configured to acquire, by the first transmission module, a cyclic shift indication carried in the first downlink control channel before transmitting the pilot on the second frequency domain resource;
  • a second processing module configured to determine a cyclic shift value of the pilot according to the cyclic shift indication, and generate the pilot corresponding to a size of the second frequency domain resource according to the cyclic shift value.
  • the disclosure also provides an uplink transmission method, including:
  • the terminal Determining, by the terminal, the first frequency domain resource of the first uplink shared channel, and transmitting, by the terminal, a first downlink control channel, where the first downlink control channel is used to carry scheduling information of the first uplink shared channel
  • the first frequency domain resource is included in the scheduling information
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the second frequency domain resource is:
  • the uplink transmission bandwidth of the system or the number of resource blocks included in the system uplink transmission bandwidth, or the number of subcarriers included in the system uplink transmission bandwidth, or the number of resource units included in the system uplink transmission bandwidth;
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is:
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the first frequency domain resource corresponding to the multiple first uplink shared channels that share the same frequency domain resource for pilot transmission is included in the second frequency domain resource.
  • the second frequency domain resource is:
  • the configuration signaling is:
  • the first downlink control channel carries a cyclic shift indication, where the cyclic shift indication is used to provide a cyclic shift value to generate the corresponding to the size of the second frequency domain resource. Pilot.
  • the disclosure also provides an uplink transmission apparatus, including:
  • a third processing module configured to determine a first frequency domain resource used by the terminal to transmit the first uplink shared channel, and send a first downlink control channel to the terminal, where the first downlink control channel is used to carry the first Scheduling information of an uplink shared channel, where the first frequency domain resource is included in the scheduling information;
  • a fourth processing module configured to determine, according to a predetermined agreement, a second frequency domain resource used for transmitting a pilot by the terminal; or, determining a second frequency domain resource used by the terminal to transmit the pilot, and configuring the second by using configuration signaling Notifying the terminal to the frequency domain resource;
  • a first receiving module configured to receive, by using the first frequency domain resource, the first uplink shared channel that is sent by the terminal, and receive, by using the second frequency domain resource, the first uplink sent by the terminal a pilot of a shared channel;
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the second frequency domain resource is:
  • the uplink transmission bandwidth of the system or the number of resource blocks included in the system uplink transmission bandwidth, or the number of subcarriers included in the system uplink transmission bandwidth, or the number of resource units included in the system uplink transmission bandwidth;
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is:
  • the second frequency domain resource is smaller than the uplink transmission bandwidth of the system
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the first frequency domain resource corresponding to the multiple first uplink shared channels that share the same frequency domain resource for pilot transmission is included in the second frequency domain resource.
  • the second frequency domain resource is:
  • the configuration signaling is:
  • the first downlink control channel carries a cyclic shift indication, where the cyclic shift indication is used to provide a cyclic shift value to generate the corresponding to the size of the second frequency domain resource. Pilot.
  • the disclosure also provides an uplink transmission apparatus, including: a processor, a memory, and a transceiver, wherein:
  • the processor is configured to read a program in the memory and perform the following process:
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the transceiver is configured to receive and transmit data
  • the memory is capable of storing data used by the processor when performing operations.
  • the disclosure also provides an uplink transmission apparatus, including: a processor, a memory, and a transceiver, wherein:
  • the processor is configured to read a program in the memory and perform the following process:
  • the terminal Determining, by the terminal, the first frequency domain resource of the first uplink shared channel, and transmitting, by the terminal, a first downlink control channel, where the first downlink control channel is used to carry scheduling information of the first uplink shared channel
  • the first frequency domain resource is included in the scheduling information
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the transceiver is configured to receive and transmit data
  • the memory is capable of storing data used by the processor when performing operations.
  • the uplink transmission method allocates a second frequency domain resource for transmitting a pilot according to an indication of a pre-agreed and/or configuration signaling, so that multiple first uplinks that share the same frequency domain resource for pilot transmission
  • the pilots of the shared channel can be aligned after mapping to ensure orthogonality between the pilots, thereby ensuring correct transmission and demodulation of the uplink data.
  • FIG. 1 is a schematic structural diagram of a frame structure 1 used in a frequency division duplex system in the related art
  • FIG. 2 is a schematic structural diagram of a frame structure 2 used in a time division duplex system in the related art
  • FIG. 3a is a schematic diagram of a conventional CP pilot structure of a physical uplink shared channel in the related art
  • FIG. 3b is a schematic diagram of an extended CP pilot structure of a physical uplink shared channel in the related art
  • FIG. 4 is a schematic diagram of sharing DMRS symbol positions by multiple PUSCHs with TTI length transmission shorter than 1 ms in the present disclosure, and destroying orthogonality between respective DMRSs;
  • FIG. 5 is a schematic flowchart of an uplink transmission method according to some embodiments of the present disclosure.
  • FIG. 6 is a schematic flowchart of an uplink transmission method according to some embodiments of the present disclosure.
  • FIG. 7 is a schematic diagram 1 of uplink transmission in some examples of a specific application of an embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram 2 of uplink transmission in some examples of a specific application of an embodiment of the present disclosure
  • FIG. 9 is a schematic diagram 3 of uplink transmission in some examples of a specific application of an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of an uplink transmission apparatus according to some embodiments of the present disclosure.
  • FIG. 11 is a schematic structural diagram of an uplink transmission apparatus according to some embodiments of the present disclosure.
  • the DMRS structure designed for the 1 ms subframe in the LTE system is reused, that is, the DMRS transmission symbol position defined in one subframe in the LTE system is not changed, in the same subframe.
  • Multiple PUSCHs transmitted using TTI lengths shorter than 1 ms may share DMRS symbol locations in an LTE system;
  • the multiple PUSCHs have independent scheduling information, and their scheduling bandwidths may only partially overlap. Therefore, according to the definition in the related art mechanism, according to the respective scheduling bandwidth and the corresponding DMRS cyclic shift (CS, Cyclic Shift) Generating its DMRS sequence, when mapped to the same symbol, because the scheduling bandwidth is partially overlapped, the DMRS sequences are not aligned, and the orthogonality between the DMRS sequences corresponding to different PUSCHs mapped on the same frequency domain resource will be destroyed, ie Figure 4,
  • the DMRSs corresponding to TTI1 and TTI2 transmitted in the dashed line 1 and the dashed line 2 frame overlap only on part of the frequency domain resources, causing the orthogonality of the DMRS to be destroyed, thereby making it impossible for the base station to distinguish the DMRSs of TTI1 and TTI2. Therefore, new DMRS generation and mapping methods need to be defined to ensure orthogonality between DMRSs corresponding to different data transmissions.
  • the present disclosure provides the following solution to solve the problem that after the transmission time interval is shortened, there is no clear data transmission method that may not be correctly demodulated after data transmission.
  • an uplink transmission method provided by some embodiments of the present disclosure is applied to a terminal, including:
  • Step 51 Receive a first downlink control channel, where the first downlink control channel is used to carry scheduling information of the first uplink shared channel, and determine, according to scheduling information carried by the first downlink control channel, for transmission. a first frequency domain resource of an uplink shared channel;
  • Step 52 Determine, according to an indication of a pre-agreed and/or configuration signaling, a second frequency domain resource for transmitting a pilot;
  • Step 53 The first uplink shared channel is transmitted on the first frequency domain resource, and the pilot of the first uplink shared channel is transmitted on the second frequency domain resource.
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource, that is, the number of subcarriers included in the second frequency domain resource is greater than or equal to the subcarrier included in the first frequency domain resource. Number.
  • the first downlink control channel is used to carry an uplink scheduling grant of the first uplink shared channel, and the TTI length of the first downlink control channel and/or the first uplink shared channel may be less than 1 ms.
  • the foregoing second frequency domain resource may have the following three conditions:
  • the second frequency domain resource is: a system uplink transmission bandwidth, or a number of resource blocks included in a system uplink transmission bandwidth, or a number of subcarriers included in a system uplink transmission bandwidth, or a system uplink transmission bandwidth.
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is: M resource blocks or subcarriers or resource units in the uplink transmission bandwidth of the system, and the second frequency domain resource is smaller than the uplink transmission bandwidth of the system;
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the base station side is required to ensure that the first frequency domain resource corresponding to the multiple first uplink shared channels sharing the DMRS frequency domain resource is included in the second frequency domain resource by using a scheduling restriction;
  • the uplink transmission bandwidth is divided into several parts, and each part includes a specific Mi physical resource block (PRB) or a sub-carrier (SC) or a resource element (Resource Element, RE), in each The section works as described above.
  • PRB physical resource block
  • SC sub-carrier
  • RE resource element
  • the third frequency domain resource is a union of the first frequency domain resources corresponding to the plurality of first uplink shared channels that share the same frequency domain resource for pilot transmission.
  • the second downlink domain channel of the terminal is notified by the first downlink control channel for scheduling the terminal; when generating the first downlink control channel, the base station needs to consider scheduling of other terminals that share the frequency domain resource transmission DMRS with the terminal. bandwidth.
  • the first combination mode determines the second frequency domain resource used for transmitting the pilot according to the pre-agreed, and specifically includes:
  • the second frequency domain resource is pre-agreed as the system uplink transmission bandwidth, or the number of resource blocks included in the system uplink transmission bandwidth, or the number of subcarriers included in the system uplink transmission bandwidth, or the resources included in the system uplink transmission bandwidth. a number of cells, wherein the resource unit is one subcarrier on a predefined symbol, or consecutive X2 subcarriers on one symbol, and X2 is a positive integer greater than 0; or
  • the second frequency domain resource is M resource blocks or sub-carriers or resource units in the uplink transmission bandwidth of the system, and the second frequency domain resource is smaller than the uplink transmission bandwidth of the system, where the M resources are The block or subcarrier or resource unit is contiguous or discontinuous in the frequency domain; or,
  • the second frequency domain resource is pre-agreed as a union of the first frequency domain resources corresponding to the plurality of first uplink shared channels that share the same frequency domain resource for pilot transmission.
  • the second combination mode determines the second frequency domain used for transmitting the pilot according to the indication of the configuration signaling.
  • Resources including:
  • the configuration signaling indicates one of a plurality of second frequency domain resources defined or configured in advance; wherein the plurality of second frequency domain resources that are predefined or configured include: one second frequency domain resource is a system uplink transmission Bandwidth, or the number of resource blocks included in the system uplink transmission bandwidth, or the number of subcarriers included in the system uplink transmission bandwidth, or the number of resource units included in the system uplink transmission bandwidth, where the resource unit is predefined One subcarrier on one symbol, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than 0, and the remaining second frequency domain resources are M resource blocks or subcarriers or resource units in the system uplink transmission bandwidth.
  • the second frequency domain resource is smaller than the uplink transmission bandwidth of the system, where the M resource blocks or subcarriers or resource units are continuous or discontinuous in the frequency domain, and the M is one or more Values; or,
  • the plurality of second frequency domain resources that are pre-defined or configured include: M resource blocks or sub-carriers or resource units in the system uplink transmission bandwidth, and the second frequency domain resource is smaller than the uplink transmission bandwidth of the system, where The M resource blocks or subcarriers or resource units are continuous or discontinuous in the frequency domain, and the M is a plurality of values; or
  • the configuration signaling directly indicates the second frequency domain resource, and the second frequency domain resource is a union of the first frequency domain resources corresponding to the plurality of first uplink shared channels that share the same frequency domain resource for pilot transmission.
  • the third combination mode determines the second frequency domain resource used for transmitting the pilot according to the pre-agreed and the indication of the configuration signaling, and specifically includes:
  • the configuration signaling indicates a first frequency domain resource corresponding to another first uplink shared channel in which the first uplink shared channel shares the same frequency domain resource for pilot transmission, and the second frequency domain resource is pre-agreed as a shared a union of the first frequency domain resources corresponding to the plurality of first uplink shared channels that are transmitted by the same frequency domain resource, and determining, according to a predetermined agreement, that the second frequency domain resource is the first frequency domain resource and The union of the first frequency domain resources corresponding to other uplink shared channels.
  • the configuration signaling is: high layer signaling or an indication field in the first downlink control channel.
  • the indication field here is different from the indication field in the first downlink control channel for indicating the first frequency domain resource.
  • the uplink transmission method further includes: acquiring a cyclic shift indication carried in the first downlink control channel; Determining a cyclic shift value of the pilot, and generating the same according to the cyclic shift value
  • the pilot of the size of the two-frequency domain resource corresponds to the pilot.
  • the uplink transmission method described in the present disclosure with reference to FIG. 5 allocates the same frequency domain resource for pilot transmission by allocating the second frequency domain resource for transmitting the pilot according to the indication of the pre-agreed and/or configuration signaling.
  • the pilots of the plurality of first uplink shared channels can be aligned after mapping to ensure orthogonality between the pilots, thereby ensuring correct transmission and demodulation of uplink data.
  • the uplink transmission method includes:
  • Step 61 Determine a first frequency domain resource used by the terminal to transmit the first uplink shared channel, and send a first downlink control channel to the terminal, where the first downlink control channel is used to carry the first uplink shared channel. Scheduling information, the first frequency domain resource is included in the scheduling information;
  • Step 62 Determine a second frequency domain resource used by the terminal to transmit a pilot according to a predetermined agreement; or determine a second frequency domain resource used by the terminal to transmit the pilot, and notify the second frequency domain resource by using configuration signaling. Giving the terminal;
  • Step 63 The first uplink shared channel that is sent by the terminal is received on the first frequency domain resource, and the first uplink shared channel that is sent by the terminal is received on the second frequency domain resource. frequency;
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource, that is, the number of subcarriers included in the second frequency domain resource is greater than or equal to the subcarrier included in the first frequency domain resource. Number.
  • the determining the second frequency domain resource for the terminal to transmit the pilot and notifying the second frequency domain resource to the terminal by using the configuration signaling may be: configuring or sharing the same frequency domain resource according to the local configuration. And performing, by using the first frequency domain resource corresponding to the multiple first uplink shared channels of the pilot transmission, determining a second frequency domain resource used by the terminal to transmit the pilot; and generating configuration signaling according to the second frequency domain resource to send to The terminal.
  • the first downlink control channel is used to carry an uplink scheduling grant of the first uplink shared channel, and the TTI length of the first downlink control channel and/or the first uplink shared channel may be less than 1 ms.
  • the foregoing second frequency domain resource may have the following three conditions:
  • the second frequency domain resource is: system uplink transmission bandwidth, or system uplink transmission band The number of resource blocks included in the width, or the number of subcarriers included in the system uplink transmission bandwidth, or the number of resource units included in the system uplink transmission bandwidth;
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is: M resource blocks or subcarriers or resource units in the uplink transmission bandwidth of the system, and the second frequency domain resource is smaller than the uplink transmission bandwidth of the system;
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the first frequency domain resource corresponding to the multiple first uplink shared channels that share the same frequency domain resource for pilot transmission is included in the second frequency domain resource.
  • the third frequency domain resource is a union of the first frequency domain resources corresponding to the multiple first uplink shared channels that share the same symbol position for pilot transmission.
  • the configuration signaling is: high layer signaling or an indication field in the first downlink control channel.
  • the indication field here is different from the indication field in the first downlink control channel for indicating the first frequency domain resource.
  • the first downlink control channel carries a cyclic shift indication, and the cyclic shift indication is used to provide a cyclic shift value to generate the guide corresponding to the size of the second frequency domain resource. frequency.
  • the uplink transmission method described in the present disclosure with reference to FIG. 6 can ensure orthogonality of DMRSs of multiple first uplink shared channels sharing different DMRS resources by adjusting DMRS transmission bandwidth. Transmission to ensure correct transmission and demodulation of upstream data.
  • the resource unit in the present disclosure is defined as one subcarrier on a symbol, ie, RE, or is defined as a continuous X2 RE/SC in the frequency domain on one symbol, referred to as RU.
  • X2 is a positive integer greater than zero.
  • the actual frequency domain resources for which the terminal is scheduled to perform data transmission are large, and the DMRSs are transmitted according to the size of the system uplink transmission bandwidth;
  • the system uplink bandwidth is 20 MHz.
  • the system uplink bandwidth includes 100 PRBs, that is, the subcarrier number is 0 to 1199 or the RU number is 0. ⁇ 99 (in RU, assuming each RU contains 12 SCs, starting from the smallest SC side, starting with RU0, the same below);
  • the frequency domain resources occupied by the data transmission indicated by the scheduling signaling of the terminal 1 are subcarriers 12 to 35 or RU1 to RU2, and the frequency domain resources occupied by the data transmission scheduled by the scheduling signaling of the terminal 2 are subcarriers 24 to 59 or RU2 to RU4, the terminal 1 transmits its data information on the subcarriers 12 to 35 or RU1 to RU2, and transmits the DMRS in the system bandwidth length, that is, the subcarriers 0 to 1199 or the RU0 to RU99, and the DMRS thereof
  • the terminal 2 transmits the data information on the subcarriers 24 to 59 or RU2 to RU4, which is the length of the system bandwidth, that is, the subcarriers 0 to 1199 or RU0 to
  • the DMRS is transmitted according to a pre-agreed or configured part of the resource size of the system uplink transmission bandwidth
  • the system uplink bandwidth is 20 MHz.
  • the system uplink bandwidth includes 100 PRBs, that is, the subcarrier number is 0 to 1199 or the RU number is 0. ⁇ 99 (in RU, assuming each RU contains 12 SCs, starting from the smallest SC side, starting with RU0, the same below);
  • the DMRSs of the terminal 1 and the terminal 2 are both in the subcarriers 0 to 119 or the RU0 to the RU9, and the frequency domain resources occupied by the data transmission indicated by the scheduling signaling of the terminal 1 are subcarriers 12 to 35 or RU1 to RU2.
  • the frequency domain resources occupied by the data transmission scheduled by the scheduling signaling of the terminal 2 are subcarriers 24 to 59 or RU2 to RU4, and the terminal 1 transmits the data information on the subcarriers 12 to 35 or RU1 to RU2.
  • the DMRS is transmitted according to a pre-agreed or configured part of the resource size of the system uplink transmission bandwidth
  • the system uplink bandwidth is 20 MHz.
  • the system uplink bandwidth includes 100 PRBs, that is, the subcarrier number is 0 to 1199 or the RU number is 0. ⁇ 99 (in RU, assuming each RU contains 12 SCs, starting from the smallest SC side, starting with RU0, the same below);
  • the carrier information is transmitted on the carrier 24 to 59 or the RU2 to the RU4, and the DMRS is transmitted on the subcarriers 12 to 59 or the RU1 to the
  • the solution provided by the present disclosure is to ensure the uplink data by adjusting the DMRS transmission bandwidth to ensure orthogonal transmission of DMRS of multiple first uplink shared channels sharing different DMRS resources. Correct transmission and demodulation.
  • the solution provided by the present disclosure is: when different UL (uplink, UpLink) TTI
  • the DMRSs of different UL TTIs are generated and transmitted in a frequency domain according to a specific length, and the data is transmitted according to the actually scheduled frequency domain resource size.
  • an uplink transmission apparatus provided by some embodiments of the present disclosure is applied to a terminal, including:
  • the first processing module 101 is configured to receive a first downlink control channel, where the first downlink control channel is used to carry scheduling information of the first uplink shared channel, and according to scheduling information carried by the first downlink control channel Determining a first frequency domain resource for transmitting the first uplink shared channel;
  • the first determining module 102 is configured to determine, according to the indication of the pre-agreed and/or configuration signaling, the second frequency domain resource used for transmitting the pilot;
  • the first transmission module 103 is configured to transmit the first uplink shared channel on the first frequency domain resource, and transmit the pilot of the first uplink shared channel on the second frequency domain resource;
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource, that is, the number of subcarriers included in the second frequency domain resource is greater than or equal to the subcarrier included in the first frequency domain resource. Number.
  • the first downlink control channel is used to carry an uplink scheduling grant of the first uplink shared channel, and the TTI length of the first downlink control channel and/or the first uplink shared channel may be less than 1 ms.
  • the foregoing second frequency domain resource may have the following three conditions:
  • the second frequency domain resource is: a system uplink transmission bandwidth, or a number of resource blocks included in a system uplink transmission bandwidth, or a number of subcarriers included in a system uplink transmission bandwidth, or a system uplink transmission bandwidth.
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is: M resource blocks or subcarriers or resource units in the uplink transmission bandwidth of the system, and the second frequency domain resource is smaller than the uplink transmission bandwidth of the system;
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the base station side is required to ensure that the first frequency domain resource corresponding to the multiple first uplink shared channels sharing the DMRS frequency domain resource is included in the second frequency domain resource by using a scheduling restriction;
  • the uplink transmission bandwidth is divided into several parts, each part containing a specific Mi PRB/SC/resource unit, which works in the above manner in each part.
  • the third frequency domain resource is a union of the first frequency domain resources corresponding to the plurality of first uplink shared channels that share the same frequency domain resource for pilot transmission.
  • the second downlink domain channel of the terminal is notified by the first downlink control channel for scheduling the terminal; when generating the first downlink control channel, the base station needs to consider scheduling of other terminals that share the frequency domain resource transmission DMRS with the terminal. bandwidth.
  • the configuration signaling is: high layer signaling or an indication field in the first downlink control channel.
  • the indication field here is different from the indication field in the first downlink control channel for indicating the first frequency domain resource.
  • the uplink transmission apparatus further includes: a first acquiring module, configured to acquire, by the first transmission module, the first downlink control channel before transmitting the pilot on the second frequency domain resource a cyclic shift indicator carried by the second processing module, configured to determine a cyclic shift value of the pilot according to the cyclic shift indication, and generate a size of the second frequency domain resource according to the cyclic shift value Corresponding to the pilot.
  • a first acquiring module configured to acquire, by the first transmission module, the first downlink control channel before transmitting the pilot on the second frequency domain resource a cyclic shift indicator carried by the second processing module, configured to determine a cyclic shift value of the pilot according to the cyclic shift indication, and generate a size of the second frequency domain resource according to the cyclic shift value Corresponding to the pilot.
  • the uplink transmission apparatus described in the present disclosure with reference to FIG. 10 allocates the same frequency domain resource for pilot transmission by allocating the second frequency domain resource for transmitting the pilot according to the indication of the pre-agreed and/or configuration signaling.
  • the pilots of the plurality of first uplink shared channels can be aligned after mapping to ensure orthogonality between the pilots, thereby ensuring correct transmission and demodulation of uplink data.
  • the uplink transmission apparatus described in the present disclosure with reference to FIG. 10 is an uplink transmission apparatus corresponding to the uplink transmission method on the terminal side described above with reference to FIG. 5, and therefore all implementations of the uplink transmission method described above with reference to FIG. The examples are applicable to the uplink transmission device and both achieve the same or similar benefits.
  • some embodiments of the present disclosure further provide an uplink transmission apparatus, including: a processor; and a memory connected to the processor through a bus interface, the memory is configured to store the The program and data used by the processor when performing the operation, when the processor calls and executes the program and data stored in the memory, implements the following functional modules:
  • a first processing module configured to receive a first downlink control channel, where the first downlink control channel is used to carry scheduling information of the first uplink shared channel, and is determined according to scheduling information carried by the first downlink control channel a first frequency domain resource for transmitting a first uplink shared channel;
  • a first determining module configured to determine, according to an indication of a pre-agreed and/or configuration signaling, a second frequency domain resource for transmitting a pilot
  • a first transmission module configured to transmit the first uplink shared channel on the first frequency domain resource, and transmit a pilot of the first uplink shared channel on the second frequency domain resource;
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the foregoing uplink transmission apparatus is an uplink transmission apparatus corresponding to the uplink transmission method on the terminal side described above with reference to FIG. 5, and therefore all the embodiments of the uplink transmission method described above with reference to FIG. 5 are applicable. The same or similar benefits can be achieved in the uplink transmission device.
  • some embodiments of the present disclosure further provide an uplink transmission apparatus, including:
  • the third processing module 111 is configured to determine a first frequency domain resource used by the terminal to transmit the first uplink shared channel, and send a first downlink control channel to the terminal, where the first downlink control channel is used to carry the Scheduling information of the first uplink shared channel, where the first frequency domain resource is included in the scheduling information;
  • a fourth processing module 112 configured to determine, according to a pre-agreed, a second frequency domain resource used by the terminal to transmit the pilot; or determine a second frequency domain resource used by the terminal to transmit the pilot, and configure the signaling by using the signaling The second frequency domain resource is notified to the terminal;
  • the first receiving module 113 is configured to receive, by using the first frequency domain resource, the first uplink shared channel that is sent by the terminal, and receive, by using the second frequency domain resource, the first Pilot of the uplink shared channel;
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource, that is, the number of subcarriers included in the second frequency domain resource is greater than or equal to the subcarrier included in the first frequency domain resource. Number.
  • the operation of determining the second frequency domain resource for the terminal to transmit the pilot and notifying the second frequency domain resource to the terminal by using the configuration signaling may be specifically: root Determining, according to the first frequency domain resource corresponding to the multiple first uplink shared channels of the pilot transmission or the same frequency domain resource, the second frequency domain resource used for transmitting the pilot by the terminal; and according to the second The frequency domain resource generation configuration signaling is sent to the terminal.
  • the first downlink control channel is used to carry an uplink scheduling grant of the first uplink shared channel, and the TTI length of the first downlink control channel and/or the first uplink shared channel may be less than 1 ms.
  • the foregoing second frequency domain resource may have the following three conditions:
  • the second frequency domain resource is: a system uplink transmission bandwidth, or a number of resource blocks included in a system uplink transmission bandwidth, or a number of subcarriers included in a system uplink transmission bandwidth, or a system uplink transmission bandwidth.
  • the resource unit is a subcarrier on a predefined symbol, or a continuous X2 subcarrier on a symbol, and X2 is a positive integer greater than 0.
  • the second frequency domain resource is: M resource blocks or subcarriers or resource units in the uplink transmission bandwidth of the system, and the second frequency domain resource is smaller than the uplink transmission bandwidth of the system;
  • the M resource blocks or subcarriers or resource units are consecutive or discontinuous in the frequency domain, and M is a predefined or configured positive integer greater than or equal to 1.
  • the resource unit is a predefined symbol.
  • One subcarrier on top, or consecutive X2 subcarriers on one symbol, X2 is a positive integer greater than zero.
  • the first frequency domain resource corresponding to the multiple first uplink shared channels that share the same frequency domain resource for pilot transmission is included in the second frequency domain resource.
  • the third frequency domain resource is a union of the first frequency domain resources corresponding to the multiple first uplink shared channels that share the same symbol position for pilot transmission.
  • the configuration signaling is: high layer signaling or an indication field in the first downlink control channel.
  • the indication field here is different from the indication field in the first downlink control channel for indicating the first frequency domain resource.
  • the first downlink control channel carries a cyclic shift indication, and the cyclic shift indication is used to provide a cyclic shift value to generate the foregoing corresponding to the size of the second frequency domain resource. Pilot.
  • the uplink transmission apparatus described in FIG. 11 of the present disclosure can ensure the orthogonal transmission of the DMRS of the plurality of first uplink shared channels sharing the DMRS resources by adjusting the DMRS transmission bandwidth. In order to ensure the correct transmission and demodulation of the uplink data.
  • the uplink transmission apparatus described with reference to FIG. 11 of the present disclosure is an uplink transmission apparatus corresponding to the uplink transmission method of the base station side described with reference to FIG. 6, and therefore all the embodiments of the uplink transmission method provided above with reference to FIG. Both are applicable to the uplink transmission device, and both can achieve the same or similar benefits.
  • some embodiments of the present disclosure further provide an uplink transmission apparatus, including: a processor; and a memory connected to the processor through a bus interface, the memory is configured to store the The program and data used by the processor when performing the operation, when the processor calls and executes the program and data stored in the memory, implements the following functional modules:
  • a third processing module configured to determine a first frequency domain resource used by the terminal to transmit the first uplink shared channel, and send a first downlink control channel to the terminal, where the first downlink control channel is used to carry the first Scheduling information of an uplink shared channel, where the first frequency domain resource is included in the scheduling information;
  • a fourth processing module configured to determine, according to a predetermined agreement, a second frequency domain resource used for transmitting a pilot by the terminal; or, determining a second frequency domain resource used by the terminal to transmit the pilot, and configuring the second by using configuration signaling Notifying the terminal to the frequency domain resource;
  • a first receiving module configured to receive, by using the first frequency domain resource, the first uplink shared channel that is sent by the terminal, and receive, by using the second frequency domain resource, the first uplink sent by the terminal a pilot of a shared channel;
  • the size of the second frequency domain resource is greater than or equal to the size of the first frequency domain resource.
  • the foregoing uplink transmission apparatus is an uplink transmission apparatus corresponding to the uplink transmission method of the base station side described above with reference to FIG. 6, and therefore all of the uplink transmission methods described above with reference to FIG. The embodiments are all applicable to the uplink transmission device and both achieve the same or similar benefits.
  • modules/sub-modules Many of the functional components described in this specification are referred to as modules/sub-modules to more particularly emphasize the independence of their implementation.
  • the modules/sub-modules can be implemented in software so as to be of various types.
  • the processor executes.
  • an identified executable code module can comprise one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function. Nonetheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different bits that, when logically combined, constitute a module and implement the provisions of the module. purpose.
  • the executable code module can be a single instruction or a plurality of instructions, and can even be distributed across multiple different code segments, distributed among different programs, and distributed across multiple memory devices.
  • operational data may be identified within the modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.
  • the module can be implemented by software, considering the level of the existing hardware process, the module can be implemented in software, and the technician can construct a corresponding hardware circuit to implement the corresponding function without considering the cost.
  • the hardware circuit includes conventional Very Large Scale Integration (VLSI) circuits or gate arrays and existing semiconductors such as logic chips, transistors, or other discrete components.
  • VLSI Very Large Scale Integration
  • the modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

Abstract

本公开文本提供了一种上行传输方法及装置,其中,上行传输方法包括:接收第一下行控制信道,第一下行控制信道用于承载第一上行共享信道的调度信息,根据第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;在第一频域资源上传输第一上行共享信道,在第二频域资源上传输第一上行共享信道的导频;第二频域资源的大小大于或等于第一频域资源的大小。

Description

一种上行传输方法及装置
相关申请的交叉引用
本申请主张在2016年3月31日在中国提交的中国专利申请No.201610197121.9的优先权,其全部内容通过引用包含于此。
技术领域
本公开文本涉及通信技术领域,特别是指一种上行传输方法及装置。
背景技术
相关技术中的LTE(Long Term Evolution,长期演进)FDD(Frequency Division Duplexing,频分双工)系统使用帧结构类型1(frame structure type 1,简称FS1),其结构如图1所示。在FDD系统中,上行和下行传输使用不同的载波频率,上行和下行传输均使用相同的帧结构。在每个载波上,一个10ms长度的无线帧包含有10个1ms子帧,每个子帧内又分为0.5ms长的时隙,上行和下行数据发送的传输时间间隔(TTI,Transmission Time Interval)时长为1ms。
相关技术中的LTE TDD(TimeDivisionDuplex,时分双工)系统使用帧结构类型2(frame structure type 2,简称FS2),其结构如图2所示。在TDD系统中,上行和下行传输使用相同的频率上不同子帧或不同时隙。FS2中每个10ms无线帧由两个5ms半帧构成,每个半帧中包含5个1ms长度的子帧。FS2中的子帧分为三类:下行子帧、上行子帧和特殊子帧,每个特殊子帧由下行传输时隙(DwPTS,Downlink Pilot Time Slot)、保护间隔(GP,Guard Period)和上行传输时隙(UpPTS,Uplink Pilot Time Slot)三部分构成。其中,DwPTS可以传输下行导频、下行业务数据和下行控制信令;GP不传输任何信号;UpPTS仅传输随机接入和探测参考信号(SRS,Sounding Reference Symbol),不能传输上行业务或上行控制信息。每个半帧中包含至少1个下行子帧和至少1个上行子帧,以及至多1个特殊子帧。FS2中执行的7种上下行子帧配置方式如表1所示。
表1
Figure PCTCN2017070961-appb-000001
LTE PUSCH(Physical Uplink Shared Control Channel,物理上行共享信道)在一个子帧内的数据和导频(即参考符号,或DMRS(DeModulation Reference Signal,解调参考信号),用于数据解调)结构如图3a和图3b所示。在常规CP(循环前缀,Cyclic Prefix)下,每个子帧中的每个时隙中的第4个符号用于传输导频,其余符号用于传输数据,在扩展CP下,每个子帧中的每个时隙中的第3个符号用于传输导频,其余符号用于传输数据。上行导频为终端专属的导频,按照PUSCH所调度的实际带宽大小产生。为了支持上行MU-MIMO(多用户多输入多输出,Multi-User Multiple-Input Multiple-Output),每列导频可以通过对同一个导频基序列进行循环移位来实现对共享相同资源的多个终端的导频的正交传输,从而使接收端可以通过循环移位区分不同终端的导频信息。
在LTE系统中,相关技术中的信道传输都是以子帧为单位来定义的,并不涉及短于1ms的传输结构。
但是,随着移动通信业务需求的发展变化,ITU(国际电信联盟,International Telecommunication Union)等多个组织对未来移动通信系统都定义了更高的用户面延时性能要求。缩短用户时延性能的主要方法之一是降低TTI长度。当传输TTI缩短后,如何进行数据传输还没有明确方法。
发明内容
本公开文本的目的在于提供一种上行传输方法及装置,解决相关技术中传输时间间隔缩短后,没有明确的数据传输方法导致数据传输后可能无法正确解调的问题。
为了解决上述技术问题,本公开文本实施例提供一种上行传输方法,包括:
接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;
在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
可选地,所述第二频域资源为:
系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,所述第二频域资源为:
系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,所述第二频域资源为:
共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
可选地,所述配置信令为:
高层信令或者所述第一下行控制信道中的指示域。
可选地,在所述第二频域资源上传输所述导频之前,所述上行传输方法还包括:
获取所述第一下行控制信道中携带的循环移位指示;
根据所述循环移位指示确定所述导频的循环移位值,根据所述循环移位值产生与所述第二频域资源的大小对应的所述导频。
本公开文本还提供了一种上行传输装置,包括:
第一处理模块,用于接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
第一确定模块,用于根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;
第一传输模块,用于在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
可选地,所述第二频域资源为:
系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,所述第二频域资源为:
系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,所述第二频域资源为:
共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
可选地,所述配置信令为:
高层信令或者所述第一下行控制信道中的指示域。
可选地,所述上行传输装置还包括:
第一获取模块,用于所述第一传输模块在所述第二频域资源上传输所述导频之前,获取所述第一下行控制信道中携带的循环移位指示;
第二处理模块,用于根据所述循环移位指示确定所述导频的循环移位值,根据所述循环移位值产生与所述第二频域资源的大小对应的所述导频。
本公开文本还提供了一种上行传输方法,包括:
确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
可选地,所述第二频域资源为:
系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,所述第二频域资源为:
系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中。
可选地,所述第二频域资源为:
共享相同符号位置进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
可选地,所述配置信令为:
高层信令或者所述第一下行控制信道中的指示域。
可选地,所述第一下行控制信道中携带有循环移位指示,所述循环移位指示用来提供循环移位值,以产生与所述第二频域资源的大小对应的所述导频。
本公开文本还提供了一种上行传输装置,包括:
第三处理模块,用于确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
第四处理模块,用于根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
第一接收模块,用于在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
可选地,所述第二频域资源为:
系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,所述第二频域资源为:
系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第 二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
可选地,共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中。
可选地,所述第二频域资源为:
共享相同符号位置进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
可选地,所述配置信令为:
高层信令或者所述第一下行控制信道中的指示域。
可选地,所述第一下行控制信道中携带有循环移位指示,所述循环移位指示用来提供循环移位值,以产生与所述第二频域资源的大小对应的所述导频。
本公开文本还提供一种上行传输装置,包括:处理器、存储器和收发机,其中:
所述处理器用于读取存储器中的程序,执行下列过程:
接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;以及
在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频,
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,
所述收发机用于接收和发送数据,
所述存储器能够存储处理器在执行操作时所使用的数据。
本公开文本还提供一种上行传输装置,包括:处理器、存储器和收发机,其中:
所述处理器用于读取存储器中的程序,执行下列过程:
确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;以及
在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频,
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,
所述收发机用于接收和发送数据,
所述存储器能够存储处理器在执行操作时所使用的数据。
本公开文本的上述技术方案的有益效果如下:
上述方案中,所述上行传输方法通过根据预先约定和/或配置信令的指示调配用于传输导频的第二频域资源,使得共享相同频域资源进行导频传输的多个第一上行共享信道的导频在映射后能够对齐,保证各个导频之间的正交性,从而保证上行数据的正确传输和解调。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请中记载的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。以下附图并未刻意按实际尺寸等比例缩放绘制,重点在于示出本申请的主旨。
图1为相关技术中频分双工系统使用的帧结构1的结构示意图;
图2为相关技术中时分双工系统使用的帧结构2的结构示意图;
图3a为相关技术中物理上行共享信道的常规CP导频结构示意图;
图3b为相关技术中物理上行共享信道的扩展CP导频结构示意图;
图4为本公开文本中采用短于1ms的TTI长度传输的多个PUSCH共享DMRS符号位置,破坏各个DMRS之间正交性的示意图;
图5为本公开文本一些实施例的上行传输方法流程示意图;
图6为本公开文本一些实施例的上行传输方法流程示意图;
图7为本公开文本实施例的具体应用的一些示例中的上行传输示意图一;
图8为本公开文本实施例的具体应用的一些示例中的上行传输示意图二;
图9为本公开文本实施例的具体应用的一些示例中的上行传输示意图三;
图10为本公开文本一些实施例的上行传输装置结构示意图;以及
图11为本公开文本一些实施例的上行传输装置结构示意图。
具体实施方式
下面将结合本公开文本一些实施例中的附图,对本公开文本一些实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本公开文本一部分实施例,而不是全部的实施例。基于本公开文本中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本公开文本保护的范围。
鉴于相关技术中不涉及短于1ms的传输结构,缩短后的TTI仍需在1ms的传输结构上传输,且考虑到实际传输情况,提出了如下想法:
当采用短于1ms的TTI长度传输PUSCH时,重用LTE系统中对1ms子帧设计的DMRS结构,即不改变LTE系统中对一个子帧中所定义的DMRS传输符号位置,在同一个子帧中的使用短于1ms的TTI长度传输的多个PUSCH可以共享LTE系统中的DMRS符号位置;
但是,这多个PUSCH具有独立的调度信息,其调度带宽可能仅部分重叠,因此,如果按照相关技术的机制中的定义,根据各自的调度带宽和对应的DMRS循环移位(CS,Cyclic Shift)产生其DMRS序列,当映射到同一个符号上时,由于调度带宽部分重叠,DMRS序列不对齐,将破坏映射在相同频域资源上的对应不同PUSCH的DMRS序列之间的正交性,即如图4所示, 虚线1和虚线2框中传输的分别对应TTI1和TTI2的DMRS仅在部分频域资源上重叠,导致DMRS的正交性被破坏,从而使基站无法区分TTI1和TTI2的DMRS。因此,需要定义新的DMRS产生和映射方式以保证对应不同数据传输的DMRS之间的正交性。
故本公开文本提供如下方案来解决传输时间间隔缩短后,没有明确的数据传输方法导致数据传输后可能无法正确解调的问题。
如图5所示,本公开文本一些实施例提供的上行传输方法,应用于终端,包括:
步骤51:接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
步骤52:根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;
步骤53:在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,即第二频域资源所包含的子载波个数大于或等于第一频域资源所包含的子载波个数。
其中,所述第一下行控制信道用于承载所述第一上行共享信道的上行调度许可;所述第一下行控制信道和/或所述第一上行共享信道的TTI长度可小于1ms。
上述第二频域资源可存在如下三种情况:
第一种,所述第二频域资源为:系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
第二种,所述第二频域资源为:系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
此时要求基站侧通过调度限制,保证共享DMRS频域资源的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中;可选地,可以预先将系统上行传输带宽分为若干个部分,每个部分包含特定的Mi个物理资源块(Physical Resource Block,PRB)或者子载波(Sub-Carrier,SC)或者资源单元(Resource Element,RE),在每个部分中按照上述方式工作。
第三种,所述第二频域资源为:共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
此时,由调度该终端的第一下行控制信道通知该终端第二频域资源;基站在产生第一下行控制信道时,需考虑与该终端共享频域资源传输DMRS的其他终端的调度带宽。
下面对预先约定和信令配置与第二频域资源的结合进行具体说明:
第一种结合方式,根据预先约定,确定用于传输导频的第二频域资源,具体包括:
预先约定所述第二频域资源为系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数,其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数;或者,
预先约定所述第二频域资源为系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽,其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的;或者,
预先约定所述第二频域资源为共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
第二种结合方式,根据配置信令的指示,确定用于传输导频的第二频域 资源,具体包括:
所述配置信令指示预先定义或者配置的多个第二频域资源中的一个;其中,所述预先定义或者配置的多个第二频域资源包括:一个第二频域资源为系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数,其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数,其余第二频域资源为系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽,其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,所述M为一个或多个值;或者,
所述预先定义或者配置的多个第二频域资源包括:系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽,其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,所述M为多个值;或者,
所述配置信令直接指示第二频域资源,所述第二频域资源为共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
第三种结合方式,根据预先约定以及配置信令的指示,确定用于传输导频的第二频域资源,具体包括:
所述配置信令指示与所述第一上行共享信道共享相同频域资源进行导频传输的其他第一上行共享信道所对应的第一频域资源,预先约定所述第二频域资源为共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集,根据预先约定确定所述第二频域资源为所述第一频域资源与所述其他上行共享信道所对应的第一频域资源的并集。
具体地,所述配置信令为:高层信令或者所述第一下行控制信道中的指示域。此处的该指示域不同于所述第一下行控制信道中的用于指示第一频域资源的指示域。
进一步地,在所述第二频域资源上传输所述导频之前,所述上行传输方法还包括:获取所述第一下行控制信道中携带的循环移位指示;根据所述循环移位指示确定所述导频的循环移位值,根据所述循环移位值产生与所述第 二频域资源的大小对应的所述导频。
由上可知,本公开文本参照图5描述的上行传输方法通过根据预先约定和/或配置信令的指示调配用于传输导频的第二频域资源,使得共享相同频域资源进行导频传输的多个第一上行共享信道的导频在映射后能够对齐,保证各个导频之间的正交性,从而保证上行数据的正确传输和解调。
为了更好的描述该上行传输方法,如图6所示,本公开文本的一些实施例从基站侧对该上行传输方法进行描述。具体地,该上行传输方法包括:
步骤61:确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
步骤62:根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
步骤63:在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,即第二频域资源所包含的子载波个数大于或等于第一频域资源所包含的子载波个数。
步骤62中的“确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端”可以为:根据本地配置或共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源,确定用于终端传输导频的第二频域资源;并根据所述第二频域资源生成配置信令发送至所述终端。
其中,所述第一下行控制信道用于承载所述第一上行共享信道的上行调度许可;所述第一下行控制信道和/或所述第一上行共享信道的TTI长度可小于1ms。
上述第二频域资源可存在如下三种情况:
第一种,所述第二频域资源为:系统上行传输带宽,或系统上行传输带 宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
第二种,所述第二频域资源为:系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
此时进行带宽调度时需限定,共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中。
第三种,所述第二频域资源为:共享相同符号位置进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
其中预先约定和信令配置与第二频域资源的结合可参考参照图5所描述的实施例中的相关内容,在此不再赘述。
具体地,所述配置信令为:高层信令或者所述第一下行控制信道中的指示域。此处的该指示域不同于所述第一下行控制信道中的用于指示第一频域资源的指示域。
进一步地,所述第一下行控制信道中携带有循环移位指示,所述循环移位指示用来提供循环移位值,以产生与所述第二频域资源的大小对应的所述导频。
由上可知,本公开文本参照图6描述的所述上行传输方法通过调整DMRS传输带宽,可保证数据传输的频域资源不同但共享DMRS资源的多个第一上行共享信道的DMRS的正交性传输,从而保证上行数据的正确传输和解调。
下面结合几个具体的例子对本公开文本的上行传输方法进行描述:
首先声明,本公开文本中所述资源单元被定义为一个符号上的一个子载波,即RE,或者被定义为一个符号上的频域上连续的X2个RE/SC,简称RU, X2为大于0的正整数。
在一些示例中,预先约定无论终端被调度的进行数据传输的实际频域资源为多大,其DMRS都按照系统上行传输带宽的大小进行传输;
如图7所示,以长度为4个符号的两个TTI共享同一列DMRS,系统上行带宽为20MHz为例,假设系统上行带宽包含100个PRB即子载波编号为0~1199或RU编号为0~99(以RU为单位,假设每个RU包含12个SC,从最小SC侧开始定义,以RU0开始,下同);
终端1的调度信令所指示的数据传输所占用的频域资源为子载波12~35或者RU1~RU2,终端2的调度信令所调度的数据传输所占用的频域资源为子载波24~59或者RU2~RU4,则:终端1在子载波12~35或RU1~RU2上传输其数据信息,在系统带宽长度上,即子载波0~1199或RU0~RU99中传输其DMRS,且其DMRS为对DMRS基序列经过CS=0的循环移位之后得到的;终端2在子载波24~59或RU2~RU4上传输其数据信息,在系统带宽长度上,即子载波0~1199或RU0~RU99中传输其DMRS,且其DMRS为对DMRS基序列经过CS=3的循环移位之后得到的;由于这两个终端的DMRS序列长度相同,且映射位置完全相同,则基站侧可以通过使用对应的循环移位分离映射在相同资源上的终端1和终端2的DMRS。
在一些示例中,无论终端被调度的进行数据传输的实际频域资源为多大,其DMRS都按照预先约定或者配置系统上行传输带宽的部分资源大小进行传输;
如图8所示,以长度为4个符号的两个TTI共享同一列DMRS,系统上行带宽为20MHz为例,假设系统上行带宽包含100个PRB即子载波编号为0~1199或RU编号为0~99(以RU为单位,假设每个RU包含12个SC,从最小SC侧开始定义,以RU0开始,下同);
假设约定或者配置终端1和终端2的DMRS都在子载波0~119或者RU0~RU9,终端1的调度信令所指示的数据传输所占用的频域资源为子载波12~35或者RU1~RU2,终端2的调度信令所调度的数据传输所占用的频域资源为子载波24~59或者RU2~RU4,则:终端1在子载波12~35或RU1~RU2上传输其数据信息,在子载波0~119或者RU0~RU9上传输其DMRS,且其 DMRS为对DMRS基序列经过CS=0的循环移位之后得到的;终端2在子载波24~59或RU2~RU4上传输其数据信息,在子载波0~119或者RU0~RU9上传输其DMRS,且其DMRS为对DMRS基序列经过CS=3的循环移位之后得到的;由于这两个终端的DMRS序列长度相同,且映射位置完全相同,则基站侧可以通过使用对应的循环移位分离映射在相同资源上的终端1和终端2的DMRS;此时,基站在调度终端1和2时,其数据传输带宽不能在子载波0~119或者RU0~RU9之外。
在一些示例中,无论终端被调度的进行数据传输的实际频域资源为多大,其DMRS都按照预先约定或者配置系统上行传输带宽的部分资源大小进行传输;
如图9所示,以长度为4个符号的两个TTI共享同一列DMRS,系统上行带宽为20MHz为例,假设系统上行带宽包含100个PRB即子载波编号为0~1199或RU编号为0~99(以RU为单位,假设每个RU包含12个SC,从最小SC侧开始定义,以RU0开始,下同);
终端1的调度信令所指示的数据传输所占用的频域资源为子载波12~35或者RU1~RU2,终端2的调度信令所调度的数据传输所占用的频域资源为子载波24~59或者RU2~RU4,终端1和终端2的调度信令中还包含指示域指示这两个终端的DMRS都在子载波12~59或RU1~RU4中传输,则:终端1在子载波12~35或RU1~RU2上传输其数据信息,在子载波12~59或RU1~RU4上传输其DMRS,且其DMRS为对DMRS基序列经过CS=0的循环移位之后得到的;终端2在子载波24~59或RU2~RU4上传输其数据信息,在子载波12~59或RU1~RU4上传输其DMRS,且其DMRS为对DMRS基序列经过CS=3的循环移位之后得到的;由于这两个终端的DMRS序列长度相同,且映射位置完全相同,则基站侧可以通过使用对应的循环移位分离映射在相同资源上的终端1和终端2的DMRS。
综上所述,本公开文本提供的方案是通过调整DMRS传输带宽,保证数据传输的频域资源不同但共享DMRS资源的多个第一上行共享信道的DMRS的正交性传输,从而保证上行数据的正确传输和解调。
也可以说,本公开文本提供的方案是:当不同UL(上行,UpLink)TTI 共享相同符号位置用作DMRS时,不同UL TTI的DMRS在频域上按照特定长度产生和传输,数据按照实际调度的频域资源大小传输。
如图10所示,本公开文本一些实施例提供的上行传输装置,应用于终端,包括:
第一处理模块101,用于接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
第一确定模块102,用于根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;
第一传输模块103,用于在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,即第二频域资源所包含的子载波个数大于或等于第一频域资源所包含的子载波个数。
其中,所述第一下行控制信道用于承载所述第一上行共享信道的上行调度许可;所述第一下行控制信道和/或所述第一上行共享信道的TTI长度可小于1ms。
上述第二频域资源可存在如下三种情况:
第一种,所述第二频域资源为:系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
第二种,所述第二频域资源为:系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
此时要求基站侧通过调度限制,保证共享DMRS频域资源的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中;可选地,可以预先将系统上行传输带宽分为若干个部分,每个部分包含特定的Mi个PRB/SC/资源单元,在每个部分中按照上述方式工作。
第三种,所述第二频域资源为:共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
此时,由调度该终端的第一下行控制信道通知该终端第二频域资源;基站在产生第一下行控制信道时,需考虑与该终端共享频域资源传输DMRS的其他终端的调度带宽。
具体地,所述配置信令为:高层信令或者所述第一下行控制信道中的指示域。此处的该指示域不同于所述第一下行控制信道中的用于指示第一频域资源的指示域。
进一步地,所述上行传输装置还包括:第一获取模块,用于所述第一传输模块在所述第二频域资源上传输所述导频之前,获取所述第一下行控制信道中携带的循环移位指示;第二处理模块,用于根据所述循环移位指示确定所述导频的循环移位值,根据所述循环移位值产生与所述第二频域资源的大小对应的所述导频。
由上可知,本公开文本参照图10描述的上行传输装置通过根据预先约定和/或配置信令的指示调配用于传输导频的第二频域资源,使得共享相同频域资源进行导频传输的多个第一上行共享信道的导频在映射后能够对齐,保证各个导频之间的正交性,从而保证上行数据的正确传输和解调。
需要说明的是,本公开文本参照图10描述的上述上行传输装置是与上述参照图5描述的终端侧的上行传输方法对应的上行传输装置,故上述参照图5描述的上行传输方法的所有实施例均适用于该上行传输装置,且均能达到相同或相似的有益效果。
为了更好地实现上述目的,本公开文本的一些实施例还提供一种上行传输装置,包括:处理器;以及通过总线接口与所述处理器相连接的存储器,所述存储器用于存储所述处理器在执行操作时所使用的程序和数据,当处理器调用并执行所述存储器中所存储的程序和数据时,实现如下的功能模块:
第一处理模块,用于接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
第一确定模块,用于根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;
第一传输模块,用于在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
需要说明的是,本公开文本提供的上述上行传输装置是与上述参照图5描述的终端侧的上行传输方法对应的上行传输装置,故上述参照图5描述的上行传输方法的所有实施例均适用于该上行传输装置,且均能达到相同或相似的有益效果。
为了更好地实现上述目的,如图11所示,本公开文本一些实施例还提供一种上行传输装置,包括:
第三处理模块111,用于确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
第四处理模块112,用于根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
第一接收模块113,用于在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,即第二频域资源所包含的子载波个数大于或等于第一频域资源所包含的子载波个数。
第四处理模块112执行的“确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端”的操作可以具体为:根 据本地配置或共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源,确定用于终端传输导频的第二频域资源;并根据所述第二频域资源生成配置信令发送至所述终端。
其中,所述第一下行控制信道用于承载所述第一上行共享信道的上行调度许可;所述第一下行控制信道和/或所述第一上行共享信道的TTI长度可小于1ms。
上述第二频域资源可存在如下三种情况:
第一种,所述第二频域资源为:系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数;
其中所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
第二种,所述第二频域资源为:系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽;
其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
此时进行带宽调度时需限定,共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中。
第三种,所述第二频域资源为:共享相同符号位置进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
其中预先约定和信令配置与第二频域资源的结合可参考参照图5描述的相关内容,在此不再赘述。
具体地,所述配置信令为:高层信令或者所述第一下行控制信道中的指示域。此处的该指示域不同于所述第一下行控制信道中的用于指示第一频域资源的指示域。
进一步地,所述第一下行控制信道中携带有循环移位指示,所述循环移位指示用来提供循环移位值,以产生与所述第二频域资源的大小对应的所述 导频。
由上可知,本公开文本的参照图11描述的上行传输装置通过调整DMRS传输带宽,可保证数据传输的频域资源不同但共享DMRS资源的多个第一上行共享信道的DMRS的正交性传输,从而保证上行数据的正确传输和解调。
需要说明的是,本公开文本的参照图11描述的上行传输装置是与参照图6描述的基站侧的上行传输方法对应的上行传输装置,故上述参照图6提供的上行传输方法的所有实施例均适用于该上行传输装置,且均能达到相同或相似的有益效果。
为了更好地实现上述目的,本公开文本的一些实施例还提供一种上行传输装置,包括:处理器;以及通过总线接口与所述处理器相连接的存储器,所述存储器用于存储所述处理器在执行操作时所使用的程序和数据,当处理器调用并执行所述存储器中所存储的程序和数据时,实现如下的功能模块:
第三处理模块,用于确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
第四处理模块,用于根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
第一接收模块,用于在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频;
其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
需要说明的是,本公开文本的一些实施例提供的上述上行传输装置是与上述参照图6描述的基站侧的上行传输方法对应的上行传输装置,故上述参照图6描述的上行传输方法的所有实施例均适用于该上行传输装置,且均能达到相同或相似的有益效果。
其中,此说明书中所描述的许多功能部件都被称为模块/子模块,以便更加特别地强调其实现方式的独立性。
本公开文本实施例中,模块/子模块可以用软件实现,以便由各种类型的 处理器执行。举例来说,一个标识的可执行代码模块可以包括计算机指令的一个或多个物理或者逻辑块,举例来说,其可以被构建为对象、过程或函数。尽管如此,所标识模块的可执行代码无需物理地位于一起,而是可以包括存储在不同位里上的不同的指令,当这些指令逻辑上结合在一起时,其构成模块并且实现该模块的规定目的。
实际上,可执行代码模块可以是单条指令或者是许多条指令,并且甚至可以分布在多个不同的代码段上,分布在不同程序当中,以及跨越多个存储器设备分布。同样地,操作数据可以在模块内被识别,并且可以依照任何适当的形式实现并且被组织在任何适当类型的数据结构内。所述操作数据可以作为单个数据集被收集,或者可以分布在不同位置上(包括在不同存储设备上),并且至少部分地可以仅作为电子信号存在于系统或网络上。
在模块可以利用软件实现时,考虑到现有硬件工艺的水平,所以可以以软件实现的模块,在不考虑成本的情况下,本领域技术人员都可以搭建对应的硬件电路来实现对应的功能,所述硬件电路包括常规的超大规模集成(Very Large Scale Integration,VLSI)电路或者门阵列以及诸如逻辑芯片、晶体管之类的现有半导体或者是其它分立的元件。模块还可以用可编程硬件设备,诸如现场可编程门阵列、可编程阵列逻辑、可编程逻辑设备等实现。
以上所述的是本公开文本的可选实施方式,应当指出对于本技术领域的普通人员来说,在不脱离本公开文本所述原理前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开文本的保护范围。

Claims (28)

  1. 一种上行传输方法,包括:
    接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
    根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;
    在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频,
    其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
  2. 如权利要求1所述的上行传输方法,其中,所述第二频域资源为:
    系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数,
    其中,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  3. 如权利要求1所述的上行传输方法,其中,所述第二频域资源为:
    系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽,
    其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  4. 如权利要求1所述的上行传输方法,其中,所述第二频域资源为:
    共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
  5. 如权利要求1至4任一项所述的上行传输方法,其中,所述配置信令为:
    高层信令或者所述第一下行控制信道中的指示域。
  6. 如权利要求1所述的上行传输方法,其中,在所述第二频域资源上传输所述导频之前,所述上行传输方法还包括:
    获取所述第一下行控制信道中携带的循环移位指示;
    根据所述循环移位指示确定所述导频的循环移位值,根据所述循环移位值产生与所述第二频域资源的大小对应的所述导频。
  7. 一种上行传输装置,包括:
    第一处理模块,用于接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
    第一确定模块,用于根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域资源;
    第一传输模块,用于在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频,
    其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
  8. 如权利要求7所述的上行传输装置,其中,所述第二频域资源为:
    系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数,
    其中,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  9. 如权利要求7所述的上行传输装置,其中,所述第二频域资源为:
    系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽,
    其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  10. 如权利要求7所述的上行传输装置,其中,所述第二频域资源为:
    共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一 频域资源的并集。
  11. 如权利要求7至10任一项所述的上行传输装置,其中,所述配置信令为:
    高层信令或者所述第一下行控制信道中的指示域。
  12. 如权利要求7所述的上行传输装置,其中,所述上行传输装置还包括:
    第一获取模块,用于所述第一传输模块在所述第二频域资源上传输所述导频之前,获取所述第一下行控制信道中携带的循环移位指示;
    第二处理模块,用于根据所述循环移位指示确定所述导频的循环移位值,根据所述循环移位值产生与所述第二频域资源的大小对应的所述导频。
  13. 一种上行传输方法,包括:
    确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
    根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
    在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频,
    其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
  14. 如权利要求13所述的上行传输方法,其中,所述第二频域资源为:
    系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数,
    其中,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  15. 如权利要求13所述的上行传输方法,其中,所述第二频域资源为:
    系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽,
    其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  16. 如权利要求15所述的上行传输方法,其中,共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中。
  17. 如权利要求13所述的上行传输方法,其中,所述第二频域资源为:
    共享相同符号位置进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
  18. 如权利要求13至17任一项所述的上行传输方法,其中,所述配置信令为:
    高层信令或者所述第一下行控制信道中的指示域。
  19. 如权利要求13所述的上行传输方法,其中,所述第一下行控制信道中携带有循环移位指示,所述循环移位指示用来提供循环移位值,以产生与所述第二频域资源的大小对应的所述导频。
  20. 一种上行传输装置,包括:
    第三处理模块,用于确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
    第四处理模块,用于根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
    第一接收模块,用于在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频,
    其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小。
  21. 如权利要求20所述的上行传输装置,其中,所述第二频域资源为:
    系统上行传输带宽,或系统上行传输带宽所包含的资源块个数,或系统 上行传输带宽所包含的子载波个数,或系统上行传输带宽所包含的资源单元个数,
    其中,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  22. 如权利要求20所述的上行传输装置,其中,所述第二频域资源为:
    系统上行传输带宽中的M个资源块或者子载波或者资源单元,且所述第二频域资源小于所述系统上行传输带宽,
    其中,所述M个资源块或者子载波或者资源单元在频域上是连续的或者不连续的,M为预定义或者配置的大于等于1的正整数,所述资源单元为预先定义的一个符号上的一个子载波,或者一个符号上的连续的X2个子载波,X2为大于0的正整数。
  23. 如权利要求22所述的上行传输装置,其中,共享相同频域资源进行导频传输的多个第一上行共享信道所对应的第一频域资源包含在所述第二频域资源中。
  24. 如权利要求20所述的上行传输装置,其中,所述第二频域资源为:
    共享相同符号位置进行导频传输的多个第一上行共享信道所对应的第一频域资源的并集。
  25. 如权利要求20至24任一项所述的上行传输装置,其中,所述配置信令为:
    高层信令或者所述第一下行控制信道中的指示域。
  26. 如权利要求20所述的上行传输装置,其中,所述第一下行控制信道中携带有循环移位指示,所述循环移位指示用来提供循环移位值,以产生与所述第二频域资源的大小对应的所述导频。
  27. 一种上行传输装置,包括:处理器、存储器和收发机,其中:
    所述处理器用于读取存储器中的程序,执行下列过程:
    接收第一下行控制信道,所述第一下行控制信道用于承载第一上行共享信道的调度信息,根据所述第一下行控制信道所承载的调度信息确定用于传输第一上行共享信道的第一频域资源;
    根据预先约定和/或配置信令的指示,确定用于传输导频的第二频域 资源;
    在所述第一频域资源上传输所述第一上行共享信道,在所述第二频域资源上传输所述第一上行共享信道的导频,
    其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,
    所述收发机用于接收和发送数据,
    所述存储器能够存储处理器在执行操作时所使用的数据。
  28. 一种上行传输装置,包括:处理器、存储器和收发机,其中:
    所述处理器用于读取存储器中的程序,执行下列过程:
    确定用于终端传输第一上行共享信道的第一频域资源,向所述终端发送第一下行控制信道,所述第一下行控制信道用于承载所述第一上行共享信道的调度信息,所述第一频域资源包含在所述调度信息中;
    根据预先约定确定用于终端传输导频的第二频域资源;或者,确定用于终端传输导频的第二频域资源,并通过配置信令将所述第二频域资源通知给所述终端;
    在所述第一频域资源上接收所述终端发送的所述第一上行共享信道,在所述第二频域资源上接收所述终端发送的所述第一上行共享信道的导频,
    其中,所述第二频域资源的大小大于或等于所述第一频域资源的大小,
    所述收发机用于接收和发送数据,
    所述存储器能够存储处理器在执行操作时所使用的数据。
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