WO2014180376A1 - 一种增强传输时间间隔集束传输方法及装置 - Google Patents

一种增强传输时间间隔集束传输方法及装置 Download PDF

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Publication number
WO2014180376A1
WO2014180376A1 PCT/CN2014/077854 CN2014077854W WO2014180376A1 WO 2014180376 A1 WO2014180376 A1 WO 2014180376A1 CN 2014077854 W CN2014077854 W CN 2014077854W WO 2014180376 A1 WO2014180376 A1 WO 2014180376A1
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Prior art keywords
tti bundling
uplink
subframe
transmission
allocated
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PCT/CN2014/077854
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English (en)
French (fr)
Inventor
陈宪明
戴博
左志松
鲁照华
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中兴通讯股份有限公司
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Publication of WO2014180376A1 publication Critical patent/WO2014180376A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • 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
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload

Definitions

  • the present invention relates to a Long Term Evolution (LTE) system, and in particular to an enhanced transmission time interval bundle transmission method and apparatus.
  • LTE Long Term Evolution
  • the LTE system radio access network includes: an enhanced Node B (eNB) and a User Equipment (UE), where the eNB is connected to a core network or other network, and is located through the radio interface.
  • the UE in the cell served by the eNB performs communication.
  • the LTE physical layer splits the frame structure of the frequency division duplex (FDD) in time.
  • Division Duplex (TDD) The uplink and downlink configuration 0, configuration 1, and configuration 6 in the frame structure introduce Transmission Time Internal Bundling (TTI Bundling) transmission technology.
  • the TTI Bundling refers to the radio resource allocated by the eNB scheduler to the UE for more than one Transmission Time Internal (TTI); its basic idea is to allow the UE to continuously transmit the same VoIP transmission using consecutive uplink TTIs or subframes.
  • the Redundancy Version (RV) of the block is used as the Hybrid Automatic Repetition Request (HARQ) transmission attempt of the VoIP transport block.
  • RV Redundancy Version
  • each uplink frame (10ms) includes 6 uplink subframes.
  • a total of 7 HARQ processes are used, and successively indexed uplink subframes are cyclically allocated to the above 7 HARQ processes;
  • TTI Bundling transmission a total of 3 HARQ processes are used, where, for each 14 (2x7) consecutive non-TTI Bundling HARQ processes ⁇ 1 (1 ), 2 (1 ), ..., ⁇ ), ⁇ ), ⁇ ), ..., ⁇ ) ⁇ , the first 4 processes ⁇ ld ⁇ d ⁇ W ⁇ 1 ) ⁇ corresponds to TTI Bundling
  • HARQ process 1 followed by 4 processes 0 ), ⁇ 1 ) ⁇ 1 ), : ⁇ 2 ) ⁇ corresponds to TTI Bundling HARQ process 2, followed by 4 processes ⁇ 2( 2 ), 3( 2 ), 4( 2 ) , 5( 2 ) ⁇ corresponds to TTI Bundling HARQ process 3, and the last 2
  • the processes ⁇ 6 (2) , 7 (2) ⁇ are no longer used in the case of TTI Bundling transmission (note: superscript 1 and superscript 2 in parentheses indicate 7 HARQ processes in groups 1 and 2)
  • the air interface delay of VoIP service is usually limited to 50ms. Therefore, the maximum number of HARQ transmissions allowed for TTI Bundling transmission is 2 times (that is, occupying 8 uplink subframe resources).
  • the VoIP transport block arrives every 20ms, and for the TDD uplink and downlink configuration 0, it includes 12 uplink subframes every 20ms, so each VoIP transport block can use up to 12 uplink subframes within the 50ms delay limit.
  • the current TDD uplink and downlink configuration 0 ⁇ Bundling transmission can use up to 8 uplink subframe resources based on the maximum 2 HARQ transmissions, and does not reach the maximum uplink subframe utilization, so the coverage performance of the VoIP service is still There is room for further improvement.
  • each radio frame (10ms) includes 5 uplink subframes.
  • a total of 6 HARQ processes are used, and successively indexed uplink subframes are cyclically allocated to the above 6 HARQ processes;
  • TTI Bundling transmission a total of 3 HARQ processes are used, where, for every 12 (2x6) consecutive non-TTI Bundling HARQ processes ⁇ 1 (1 ), 2 (1 ), .. ⁇ ( ⁇ ), ⁇ ), ⁇ ), .. . , ⁇ ) ⁇ , the first 4 processes ⁇ ld ⁇ d ⁇ W ⁇ 1 ) ⁇ corresponds to TTI Bundling
  • HARQ process 1 followed by 4 processes 0 ), ⁇ 1 ), : ⁇ 2 ) 2 ) ⁇ corresponds to TTI Bundling HARQ process 2, and the last 4 processes ⁇ 3( 2 ), 4( 2 ), 5( 2 ), 6( 2 ) ⁇ corresponds to TTI Bundling HARQ process 3 (Note: Superscript 1 and superscript 2 in parentheses indicate the 6 HARQ processes of Group 1 and Group 2 respectively)own
  • the air interface delay of VoIP service is usually required to be The limit is in the range of 50ms, therefore, for ⁇ Bundling transmission, the maximum number of allowed HARQ transmissions is 2 (ie, occupying 8 uplink subframe resources).
  • the VoIP transport block arrives every 20 ms, and for the TDD uplink and downlink configuration 6 every 10 ms range includes 10 uplink subframes, so each VoIP transport block can use at most 10 uplink subframes within the 50 ms delay limit.
  • the current TDD uplink and downlink configuration 6 ⁇ Bundling transmission can use up to 8 uplink subframe resources based on the maximum 2 HARQ transmissions, and the maximum uplink subframe utilization is not achieved, so that the coverage performance of the VoIP service is still There is room for further improvement. Summary of the invention
  • the technical problem to be solved by the present invention is to provide an enhanced transmission time interval bundle transmission method and apparatus, which can improve the uplink coverage performance of a VoIP service.
  • an enhanced transmission time interval bundling transmission method of the present invention includes: assigning a non-transmission time interval bundling ⁇ Bundling uplink sub-frame to a transport block for different time division duplex TDD uplink and downlink configurations Uplink transmission of the transport block;
  • the non-TTI Bundling uplink subframe refers to an uplink subframe except that the TTI Bundling transmission determines the uplink subframe.
  • the non-TTI Bundling uplink subframe is allocated to the transport block for uplink transmission of the transport block for different time-division duplex TDD uplink and downlink configurations, including:
  • the TTI Bundling transmission in the TDD uplink and downlink configuration has determined the uplink subframe and the non-TTI Bundling uplink subframe;
  • the non-TTI Bundling uplink subframe assigning, according to a feature of the transport block, the non-TTI Bundling uplink subframe to the transport block, where the characteristics of the transport block include: an arrival period and an allowed maximum transmission delay.
  • the allocating the non-TTI Bundling uplink subframe to the transport block according to the feature of the transport block includes: allocating the non-TTI Bundling uplink subframe to the transport block that satisfies the first condition;
  • the first condition includes: The transport block arrives before the non-TTI Bundling uplink subframe, and the number of non-TTI Bundling uplink subframes allocated by the transport block is less than the value Z;
  • the value Z is the maximum non-TTI Bundling uplink subframe number, and the maximum non- ⁇ Bundling uplink subframe number is equal to the ideal maximum allocated uplink subframe number minus the allowed maximum transmission delay time of the transport block.
  • the TTI Bundling transmission has determined the number of uplink subframes; wherein, the ideal maximum allocated uplink subframe number is equal to the total number of uplink subframes in the time range of the arrival period size of the transport block.
  • the allocating the non-TTI Bundling uplink subframe to the transport block that satisfies the first condition includes:
  • the non-TTI Bundling uplink subframe is allocated to the transport block
  • the uplink subframe is allocated to the first one of the N transport blocks;
  • the non-TTI Bundling uplink subframe is not allocated.
  • the TDD uplink and downlink configuration is TDD uplink and downlink configuration 0, and for the inter-network voice VoIP transmission block in the TDD uplink and downlink configuration 0, all non-TTI Bundling uplinks after the first VoIP transmission block arrival time
  • the frame is grouped by four consecutive non-TTI Bundling uplink subframes, the first group of non-TTI Bundling uplink subframes is allocated to the first VoIP transport block, and the second group of non- ⁇ Bundling uplink subframes are not allocated, i (i) > 3) Group non-TTI Bundling uplink subframes are sequentially allocated to the i-1th VoIP transport block.
  • the TDD uplink and downlink configuration is a TDD uplink and downlink configuration 6, and for the VoIP transport block in the TDD uplink and downlink configuration 6, all non- ⁇ Bundling uplink subframes after the first VoIP transport block arrival time are Two consecutive non-TTI Bundling uplink subframes are grouped, the first group of non-TTI Bundling uplink subframes is allocated to the first VoIP transport block, and the second group and the third group of non- ⁇ Bundling uplink subframes are not allocated, group 4 The non-TTI Bundling uplink subframe is allocated to the second VoIP transport block, the fifth group of non-TTI Bundling uplink subframes is allocated to the third VoIP transport block, and the sixth group of non-TTI Bundling uplink subframes are not allocated; i ( i > 7) The group non-TTI Bundling uplink subframes are sequentially allocated to the i-th VoIP transport block.
  • the method further comprises:
  • the acknowledgment ACK/non-acknowledgement NACK feedback number of the VoIP transport block downlink is equal to the TTI Bundling maximum hybrid automatic repeat request HARQ transmission number, and the transmission according to the TTI Bundling has been Determining that the P*Qth subframe in the uplink subframe determines a downlink subframe in which the P (P > 1) ACK/NACK is transmitted, where Q is a consecutive uplink subframe allocated for one HARQ transmission attempt transmitted by the TTI Bundling The number of frames.
  • the method includes: transmitting the Pth ACK/ The downlink subframe of the NACK is the first downlink subframe whose index is greater than or equal to X+4, where X is the subframe index of the P*Qth TTI Bundling transmission determined uplink subframe.
  • the method further includes: implicitly indicating, by using the transmission parameter, non-TTI Bundling transmission, The Bundling transmission or enhanced TTI Bundling transmission; wherein, the transmission parameter comprises: an uplink grant type, an uplink grant resource first index, a transport block frequency domain resource block first index, and a transport block initial transmission time domain subframe index Or a variety.
  • An enhanced transmission time interval bundling transmission apparatus comprising: a configuration determining unit and an allocating unit, wherein: the configuration determining unit is configured to: determine a time division duplex TDD uplink and downlink configuration to be used; and the allocation unit is configured to: For the different time-division duplex TDD uplink and downlink configurations, the non-transmission time interval bundle TTI Bundling uplink subframe is allocated to the transport block for uplink transmission of the transport block; wherein the non-TTI Bundling uplink subframe refers to TTI Bundling The transmission determines that an uplink subframe other than the uplink subframe is determined.
  • the allocating unit includes a subframe determining subunit and an assigning subunit, where: the subframe determining subunit is configured to: determine, according to the TDD uplink and downlink configuration, that the TTI Bundling transmission in the TDD uplink and downlink configuration has determined the uplink a subframe and a non-TTI Bundling uplink subframe; the allocation subunit, configured to allocate the non- ⁇ Bundling uplink subframe to the transport block according to a feature of the transport block; wherein, the transport block features include: an arrival period And the maximum transmission delay allowed.
  • the allocating subunit is configured to: allocate, according to a feature of the transport block, the non-TTI Bundling uplink subframe for the transport block, including:
  • the allocation subunit allocates a non-TTI Bundling uplink subframe to a transport block that satisfies the first condition;
  • the first condition includes: the transport block arrives before the non-TTI Bundling uplink subframe, and the transport block has been allocated non- The number of TTI Bundling uplink subframes is less than the value Z;
  • the value Z is the maximum non-TTI Bundling uplink subframe number, and the maximum non- ⁇ Bundling uplink subframe number is equal to the ideal maximum allocated uplink subframe number minus the allowed maximum transmission delay time of the transport block.
  • the TTI Bundling transmission has determined the number of uplink subframes; wherein, the ideal maximum allocated uplink subframe number is equal to the total number of uplink subframes in the time range of the arrival period size of the transport block.
  • the allocating subunit is configured to: allocate a non-TTI Bundling uplink subframe to the transport block that satisfies the first condition, and includes: If there is one transport block that satisfies the first condition, the non-TTI Bundling uplink subframe is allocated to the transport block;
  • the non-TTI Bundling uplink subframe is allocated to the first transport block that arrives in the N transport blocks;
  • the non-TTI Bundling uplink subframe is not allocated.
  • the TDD uplink and downlink configuration is TDD uplink and downlink configuration 0, and for the inter-network voice VoIP transmission block in the TDD uplink and downlink configuration 0, all non-TTI Bundling uplinks after the first VoIP transmission block arrival time
  • the frame is grouped by four consecutive non-TTI Bundling uplink subframes, the first group of non-TTI Bundling uplink subframes is allocated to the first VoIP transport block, and the second group of non- ⁇ Bundling uplink subframes are not allocated, i (i) > 3) Group non-TTI Bundling uplink subframes are sequentially allocated to the i-1th VoIP transport block.
  • the TDD uplink and downlink configuration is a TDD uplink and downlink configuration 6, and for the VoIP transport block in the TDD uplink and downlink configuration 6, all non- ⁇ Bundling uplink subframes after the first VoIP transport block arrival time are Two consecutive non-TTI Bundling uplink subframes are grouped, the first group of non-TTI Bundling uplink subframes is allocated to the first VoIP transport block, and the second group and the third group of non- ⁇ Bundling uplink subframes are not allocated, group 4 The non-TTI Bundling uplink subframe is allocated to the second VoIP transport block, the fifth group of non-TTI Bundling uplink subframes is allocated to the third VoIP transport block, and the sixth group of non-TTI Bundling uplink subframes are not allocated; i ( i > 7) The group non-TTI Bundling uplink subframes are sequentially allocated to the i-th VoIP transport block.
  • the device further comprises a response unit, wherein:
  • the response unit is configured to: for the VoIP transport block in the TDD uplink and downlink configuration 0 and the TDD uplink and downlink configuration 6, determine that the acknowledgment ACK/non-acknowledgment NACK feedback number of the VoIP transport block downlink is equal to the TTI Bundling maximum hybrid automatic repeat request HARQ The number of transmissions, and determining a downlink subframe in which P (P > 1 ) ACK/NACK is transmitted according to the P*Qth subframe in the determined uplink subframe, where Q is a HARQ transmitted for TTI Bundling The number of consecutive uplink subframes allocated by the transmission attempt.
  • the response unit is configured to: determine, according to the PTI Bundling transmission, the P*Qth subframe in the determined uplink subframe, to determine a downlink subframe that transmits the Pth (P>1) ACK/NACK, including: The downlink subframe in which the Pth ACK/NACK is transmitted is the first downlink subframe whose index is greater than or equal to X+4, where X is the subframe of the P*Qth TTI Bundling transmission determined uplink subframe index.
  • the apparatus further includes an indication unit, where: the indication unit is configured to: implicitly indicate, by using a transmission parameter, a non-TTI Bundling transmission, a TTI Bundling transmission, or an enhanced TTI Bundling transmission; wherein, the transmission parameter includes : one or more of an uplink grant type, an uplink grant resource first index, a transport block frequency domain resource block first index, and a transport block initial transmission time domain subframe index.
  • the indication unit is configured to: implicitly indicate, by using a transmission parameter, a non-TTI Bundling transmission, a TTI Bundling transmission, or an enhanced TTI Bundling transmission; wherein, the transmission parameter includes : one or more of an uplink grant type, an uplink grant resource first index, a transport block frequency domain resource block first index, and a transport block initial transmission time domain subframe index.
  • the non-TTI Bundling uplink subframe is continuously allocated to the VoIP transport block, thereby achieving the maximum uplink under the 50 ms delay limit.
  • the subframe utilization rate and the backward compatibility are maintained, thereby further improving the coverage performance of the uplink VoIP service under the TDD frame structure.
  • 1 is a schematic diagram of a TTI Bundling transmission method for uplink and downlink configuration 0 of a TDD frame structure in the related art
  • FIG. 2 is a schematic diagram of a TTI Bundling transmission method for an uplink and downlink configuration 6 of a TDD frame structure in the related art
  • FIG. 3 is a schematic diagram of an enhanced ⁇ Bundling transmission method for an uplink and downlink configuration 0 of a TDD frame structure according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an enhanced ⁇ Bundling transmission method for an uplink and downlink configuration 6 of a TDD frame structure according to an embodiment of the present invention
  • FIG. 5 is a block diagram of an enhanced transmission time interval bundling transmission apparatus according to an embodiment of the present invention. Preferred embodiment of the invention
  • the enhanced transmission time interval bundling transmission method of the present application includes:
  • the non-TTI Bundling uplink subframe refers to other uplink subframes except the TTI Bundling transmission determined uplink subframe.
  • the TTI Bundling transmission has determined that the uplink subframe refers to a subframe for uplink transmission allocated for the transport block in the TDD uplink and downlink configuration according to the existing TTI Bundling transmission method.
  • the non-TTI Bundling uplink subframe is allocated to the transport block for uplink transmission of the transport block, including:
  • the TTI Bundling transmission in the configuration has determined an uplink subframe and a non-TTI Bundling uplink subframe;
  • a non-TTI Bundling uplink subframe is allocated to the transport block.
  • the characteristics of the transport block include: an arrival period and an allowed maximum transmission delay.
  • the non-TTI Bundling uplink subframe is allocated to the transport block, including:
  • the first condition includes: the transport block arrives before the non-TTI Bundling uplink subframe, and the number of non-TTI Bundling uplink subframes allocated by the transport block Less than the value Z;
  • the value Z is the maximum non-TTI Bundling uplink subframe number, and the maximum non- ⁇ Bundling uplink subframe number is equal to the ideal maximum allocated uplink subframe number minus the allowed maximum transmission delay time of the transport block.
  • the TTI Bundling transmission has determined the number of uplink subframes; wherein, the ideal maximum allocated uplink subframe number is equal to the total number of uplink subframes in the time range of the arrival period size of the transport block.
  • a non-TTI Bundling uplink subframe is allocated to a transport block that satisfies the first condition, and includes:
  • the non-TTI Bundling uplink subframe is allocated to the transport block
  • the non-TTI Bundling uplink subframe is allocated to the first transport block among the N transport blocks;
  • the TDD uplink and downlink configuration is configured as TDD uplink and downlink configuration 0, and for the VoIP transport block in the TDD uplink and downlink configuration 0, all non- ⁇ Bundling uplink subframes after the arrival time of the first VoIP transport block are consecutively 4
  • the non-TTI Bundling uplink subframes are grouped, the first group of non-TTI Bundling uplink subframes are allocated to the first VoIP transport block, and the second group of non-TTI Bundling uplink subframes are not allocated; the ith (i > 3) group is not TTI
  • the Bundling uplink subframes are sequentially allocated to the i-1th VoIP transport block.
  • the TDD uplink and downlink configuration is TDD uplink and downlink configuration 6.
  • the TTI Bundling uplink subframe is a group, the first group of non-TTI Bundling uplink subframes is allocated to the first VoIP transport block, the second group and the third group of non-TTI Bundling uplink subframes are not allocated; the fourth group of non-TTI Bundling uplinks The subframe is allocated to the second VoIP transport block, the fifth group of non-TTI Bundling uplink subframes is allocated to the third VoIP transport block, and the sixth group of non- ⁇ Bundling uplink subframes are not allocated; the ith (i > 7) group is not allocated
  • the TTI Bundling uplink subframes are sequentially allocated to the i-th VoIP transport block.
  • the acknowledgment ACK/non-acknowledgment NACK feedback number of the VoIP transport block downlink is equal to the TTI Bundling maximum HARQ transmission number
  • the determined uplink subframe is determined according to the TTI Bundling transmission.
  • P*Q TTI Bundling transmissions have determined that the uplink subframe determines the downlink subframe in which the P (P > 1) ACK/NACK is transmitted, where Q is the consecutive uplink subframe allocated by one HARQ transmission attempt of the TTI Bundling transmission. Number, ie TTI Bundling size.
  • the downlink subframe that transmits the Pth ACK/NACK is the first downlink subframe whose index is greater than or equal to X+4, where X is the sub-P*Q TTI Bundling transmission. Frame index.
  • the executor of the enhanced TTI Bundling transmission method in this application is an eNB scheduler and a UE, that is, the eNB scheduler and the UE perform transmission or reception in the enhanced ⁇ Bundling transmission mode according to the enhanced TTI Bundling transmission method.
  • the non-TTI Bundling transmission, the ⁇ Bundling transmission, or the enhanced TTI Bundling transmission is implicitly indicated by the transmission parameter;
  • the transmission parameters include: One or more of an uplink grant (UL Grant) type, an uplink grant resource first index, a transport block frequency domain resource block first index, and a transport block initial transmission time domain subframe index.
  • UL Grant uplink grant
  • the UE can obtain the above transmission parameters by means of self-acquisition or base station transmission, so as to know whether to use non-TTI Bundling transmission, TTI Bundling transmission, or to use enhanced TTI Bundling transmission.
  • the uplink grant type includes a semi-persistent (SPS) uplink grant and a non-semi-persistent uplink grant, which can be transmitted by a semi-continuous uplink grant indication using a non-TTI Bundling transmission, and a non-semi-persistent uplink grant indication using a TTI Bundling transmission.
  • SPS semi-persistent
  • enhanced TTI Bundling transmission specifically, TTI Bundling transmission or enhanced TTI Bundling transmission is indicated by explicit information in the non-semi-persistent uplink grant payload).
  • the uplink grant resource represents at least one physical or logical resource carrying the uplink grant information
  • the uplink grant resource first index represents an index of the first physical or logical resource of the at least one physical or logical resource
  • the first index of the resource is divided into three groups, and the first index of the uplink grant resource of the first group indicates that the non-TTI Bundling transmission is used, and the first index of the uplink grant resource of the second group indicates that the TTI Bundling transmission is used.
  • the first index of the three groups of uplink grant resources indicates the use of enhanced TTI Bundling transmission.
  • the transport block frequency domain resource block first index and the transport block initial transmission time domain subframe index in the transmission parameter are similar to the indication of the uplink grant resource first index.
  • the mark D represents a downlink subframe
  • the mark U represents an uplink subframe
  • the mark S represents a special subframe, but can be used as a downlink subframe; therefore, this document will be labeled as D.
  • Both the subframes of S and S are regarded as downlink subframes.
  • FIG. 3 it is an enhanced TTI Bundling transmission method for the uplink and downlink configuration 0 of the TDD frame structure; to further improve the uplink subframe utilization and maintain backward compatibility, based on the determined uplink subframe allocation of the TTI Bundling transmission
  • the non-TTI Bundling uplink subframe is further allocated to the VoIP transport block, so that the uplink subframe utilization of each VoIP transport block is maximized.
  • Figure 3 is degraded to the TTI Bundling transmission described in Figure 1 (a total of 3 TTI Bundling HARQ processes, each VoIP transport block is transmitted at most 2 times, occupying 8 uplink subframe resources).
  • the subframe index of the non-TTI Bundling uplink subframe includes:
  • VoIP transport block arrival period is 20ms, and the maximum allowable transmission delay is 50ms;
  • the ideal maximum allocated uplink subframe number is equal to 12 (the total number of uplink subframes in the time range of 20 ms in the arrival period), and the maximum non-TTI Bundling uplink subframe number is equal to 4 (the ideal maximum allocated uplink subframe number is 12 minus The maximum allowable transmission delay within 50ms of TTI Bundling transmission has determined the number of uplink subframes 8).
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 9, it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe does not reach the maximum non-TTI Bundling uplink subframe number 4, that is, The number of non-TTI Bundling uplink subframes that have been allocated to the first VoIP transport block is zero, and the non-TTI Bundling uplink subframe is allocated to the first VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 10, it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 4, that is, The number of non-TTI Bundling uplink subframes that have been allocated to the first VoIP transport block is one, and the non-TTI Bundling uplink subframe is allocated to the first VoIP transport block.
  • the VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes that have been allocated does not reach the maximum non-TTI Bundling uplink subframe number 4 is one.
  • the number of non-TTI Bundling uplink subframes currently allocated to the first VoIP transport block is two, and the non-TTI Bundling uplink subframe is allocated to the first VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 14 it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe does not reach the maximum non-TTI Bundling uplink subframe number.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 15, it is determined that there are 0 VoIP transport blocks that arrive before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 4, so The non-TTI Bundling uplink subframe is no longer allocated; similarly, for three non-TTI Bundling uplink subframes with indices of 18, 19, and 20, the allocation is no longer performed.
  • non-TTI Bundling uplink subframe with an index of 23 it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 4, that is, For the two arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the second VoIP transport block is zero, and the non-TTI Bundling uplink subframe is allocated to the second VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 24 it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that have not reached the maximum non-TTI Bundling uplink subframe number 4 is one, that is, For the two arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the second VoIP transport block is one, and the non-TTI Bundling uplink subframe is allocated to the second VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 39, it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 4, that is, For the two arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the second VoIP transport block is two, and the non-TTI Bundling uplink subframe is allocated to the second VoIP transport block.
  • the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that have reached the maximum non-TTI Bundling uplink subframe number 4 is one, that is, the second.
  • the number of non-TTI Bundling uplink subframes currently allocated to the second VoIP transport block is three, and the non-TTI Bundling uplink subframe is allocated to the second VoIP transport block.
  • non-TTI Bundling uplink subframe with index 43 it is determined that the subframe arrives before the subframe and The number of allocated non-TTI Bundling uplink subframes does not reach the maximum non-TTI Bundling uplink subframe number of 4, that is, the third arriving VoIP transport block, which is currently allocated to the third VoIP transport block.
  • the number of uplink subframes of the TTI Bundling is 0, and the non-TTI Bundling uplink subframe is allocated to the third VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 44 it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that do not reach the maximum non-TTI Bundling uplink subframe number 4 is one, that is, For the three arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the third VoIP transport block is one, and the non-TTI Bundling uplink subframe is allocated to the third VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 45 it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that do not reach the maximum non-TTI Bundling uplink subframe number 4 is one, that is, For the three arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the third VoIP transport block is two, and the non-TTI Bundling uplink subframe is allocated to the third VoIP transport block.
  • the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that have not reached the maximum non-TTI Bundling uplink subframe number 4 is one, that is, the third.
  • the number of non-TTI Bundling uplink subframes currently allocated to the third VoIP transport block is three, and the non-TTI Bundling uplink subframe is allocated to the third VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 69, it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 4, that is, For the four arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the fourth VoIP packet is zero, and the non-TTI Bundling uplink subframe is allocated to the fourth VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 70 it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that do not reach the maximum non-TTI Bundling uplink subframe number 4 is one, that is, For the four arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the fourth VoIP transport block is one, and the non-TTI Bundling uplink subframe is allocated to the fourth VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 79, it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 4, that is, For the four arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the fourth VoIP transport block is two, and the non-TTI Bundling uplink subframe is allocated to the fourth VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 80 it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that do not reach the maximum non-TTI Bundling uplink subframe number 4 is one, that is, For the four arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the fourth VoIP transport block is three, and the non-TTI Bundling uplink subframe is allocated to the fourth VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 83 it is determined that one of the VoIP transport blocks that arrives before the subframe and the number of non-TTI Bundling uplink subframes that have been allocated does not reach the maximum non-TTI Bundling uplink subframe number 4 is one.
  • the number of non-TTI Bundling uplink subframes currently allocated to the fifth VoIP transport block is zero, and the non-TTI Bundling uplink subframe is allocated to the fifth VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 84, it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 4, that is, The number of non-TTI Bundling uplink subframes currently allocated to the 5th VoIP transport block is 1 for the 5 arriving VoIP transport blocks, and the non-TTI Bundling uplink subframe is allocated to the 5th VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 93, it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that do not reach the maximum non-TTI Bundling uplink subframe number 4 is one, that is, For the five arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the fifth VoIP transport block is two, and the non-TTI Bundling uplink subframe is allocated to the fifth VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 94, it is determined that one of the VoIP transport blocks that arrives before the subframe and the number of non-TTI Bundling uplink subframes that have been allocated does not reach the maximum non-TTI Bundling uplink subframe number 4 is one. 5 arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the 5th VoIP transport block is 3, the non-TTI Bundling The uplink subframe is allocated to the fifth VoIP transport block.
  • TTI Bundling size the number of consecutive uplink subframes Q allocated by one HARQ transmission attempt transmitted by TTI Bundling is 4; under the delay limit of 50 ms, the maximum number of HARQ transmissions of TTI Bundling is 2 (see FIG. 1). Shown).
  • the non-TTI Bundling uplink subframe is further allocated to the VoIP transport block, so that the uplink subframe utilization of each VoIP transport block is maximized.
  • FIG. 4 is degraded to the TTI Bundling transmission described in FIG. 2 (a total of 3 TTI Bundling HARQ processes, and each VoIP transport block transmits a maximum of 2 Times, occupying 8 uplink subframe resources).
  • the subframe index of the non-TTI Bundling uplink subframe includes:
  • the VoIP transport block arrival period is 20 ms, and the maximum allowable transmission delay is 50 ms; at this time, the ideal maximum allocated uplink subframe number is equal to 10 (the total number of uplink subframes in the time range of 20 ms in the arrival period), and the maximum non-TTI The number of Bundling uplink subframes is equal to 2 (the ideal maximum allocated uplink subframe number 10 minus the maximum allowed transmission delay within 50 ms of the TTI Bundling transmission has determined the number of uplink subframes 8).
  • non-TTI Bundling uplink subframe with an index of 9 it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe does not reach the maximum non-TTI Bundling uplink subframe number 2, that is, The number of non-TTI Bundling uplink subframes that have been allocated to the first VoIP transport block is zero, and the non-TTI Bundling uplink subframe is allocated to the first VoIP transport block.
  • the VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes that have been allocated does not reach the maximum non-TTI Bundling uplink subframe number 2 is one.
  • the number of non-TTI Bundling uplink subframes that have been allocated to the first VoIP transport block is one, and the non-TTI Bundling uplink subframe is allocated to the first VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 14 it is determined that there are 0 VoIP transport blocks that arrive before the subframe and the number of non-TTI Bundling uplink subframes that are allocated does not reach the maximum non-TTI Bundling uplink subframe number 2, so The non-TTI Bundling uplink subframes are no longer allocated; similarly, for three non-TTI Bundling uplink subframes with indices of 15, 18, and 19, the allocation is no longer performed.
  • non-TTI Bundling uplink subframe with an index of 23 it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 2, that is, For the two arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the second VoIP transport block is zero, and the non-TTI Bundling uplink subframe is allocated to the second VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 24, it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe does not reach the maximum non-TTI Bundling uplink subframe number 2, that is, For the two arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the second VoIP transport block is one, and the non-TTI Bundling uplink subframe is allocated to the second VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 49, it is determined that the number of non-TTI Bundling uplink subframes that arrive before the subframe does not reach the maximum non-TTI Bundling uplink subframe number 2, that is, For the three arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the third VoIP transport block is zero, and the non-TTI Bundling uplink subframe is allocated to the third VoIP transport block.
  • the number of non-TTI Bundling uplink subframes that arrive before the subframe and the number of non-TTI Bundling uplink subframes that have not reached the maximum non-TTI Bundling uplink subframe number 2 is one, that is, 3 arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the 3rd VoIP transport block is 1, the non-TTI Bundling The uplink subframe is allocated to the third VoIP transport block.
  • non-TTI Bundling uplink subframe with an index of 54 it is determined that there are 0 VoIP transport blocks that arrive before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 2, so The non-TTI Bundling uplink subframe is no longer allocated; similarly, for a non-TTI Bundling uplink subframe with index 55, the allocation is no longer performed.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 89, it is determined that there are two non-TTI Bundling uplink subframes that arrive before the subframe and that do not reach the maximum non-TTI Bundling uplink subframe number 2, that is, The 4th and 5th arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the 4th VoIP transport block is 0, and the non-TTI Bundling uplinks currently allocated to the 5th VoIP transport block The number of frames is also zero, and the non-TTI Bundling uplink subframe is allocated to the fourth VoIP transport block that arrives preferentially.
  • the non-TTI Bundling uplink subframe whose index is 93, it is determined that there are two non-TTI Bundling uplink subframes that arrive before the subframe and that do not reach the maximum non-TTI Bundling uplink subframe number 2, that is, 4th. And the 5th arriving VoIP transport block, the number of non-TTI Bundling uplink subframes currently allocated to the 4th VoIP transport block is 1, and the non-TTI Bundling uplink subframe currently allocated to the 5th VoIP transport block The number is 0, and the non-TTI Bundling uplink subframe is allocated to the 4th VoIP transport block that is preferentially arrived.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 94, it is determined that one of the VoIP transport blocks that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 2 is one. For the five arriving VoIP transport blocks, the number of non-TTI Bundling uplink subframes currently allocated to the fifth VoIP transport block is zero, and the non-TTI Bundling uplink subframe is allocated to the fifth VoIP transport block.
  • non-TTI Bundling uplink subframe For a non-TTI Bundling uplink subframe with an index of 95, it is determined that there is one VoIP transport block that arrives before the subframe and the number of non-TTI Bundling uplink subframes allocated does not reach the maximum non-TTI Bundling uplink subframe number 2, that is, The number of non-TTI Bundling uplink subframes currently allocated to the 5th VoIP transport block is 1 for the 5 arriving VoIP transport blocks, and the non-TTI Bundling uplink subframe is allocated to the 5th VoIP transport block.
  • TTI Bundling size the number of consecutive uplink subframes Q allocated by one HARQ transmission attempt transmitted by TTI Bundling is 4; under the delay limit of 50 ms, the maximum number of HARQ transmissions of TTI Bundling is 2 (see FIG. 2). Shown).
  • an enhanced transmission time interval bundling transmission apparatus which includes: a configuration determining unit and an allocating unit, wherein:
  • a configuration determining unit configured to determine a time division duplex TDD uplink and downlink configuration
  • An allocation unit configured to allocate a non-transmission time interval bundle TTI Bundling uplink subframe to a transport block for uplink transmission of a transport block for different time division duplex TDD uplink and downlink configurations; wherein, the non-TTI Bundling uplink subframe refers to a TTI
  • the Bundling transmission has determined an uplink subframe other than the uplink subframe.
  • the allocation unit includes a subframe determining subunit and an allocation subunit, where:
  • a sub-frame determining sub-unit configured to determine, according to the TDD uplink and downlink configuration, that the TTI Bundling transmission in the TDD uplink and downlink configuration has determined an uplink subframe and a non-TTI Bundling uplink subframe;
  • an allocation subunit configured to allocate, according to characteristics of the transport block, a non-TTI Bundling uplink subframe for the transport block; wherein, the transport block features include: an arrival period and an allowed maximum transmission delay.
  • the allocation sub-unit allocates a non-TTI Bundling uplink subframe to the transport block according to the characteristics of the transport block, including:
  • the allocation subunit allocates the non-TTI Bundling uplink subframe to the transport block that satisfies the first condition;
  • the first condition includes: the transport block arrives before the non-TTI Bundling uplink subframe, and the transport block is divided The number of non-TTI Bundling uplink subframes is less than the value Z;
  • the value Z is the maximum number of non-TTI Bundling uplink subframes, and the maximum non-TTI Bundling uplink subframe number is equal to the ideal maximum allocated uplink subframe number minus the allowed maximum transmission delay time range of the transport block. Determining the number of uplink subframes; where, the ideal maximum allocated uplink subframe number is equal to the total number of uplink subframes in the time range of the arrival period size of the transport block.
  • the allocation sub-unit allocates the non-TTI Bundling uplink subframe to the transport block that satisfies the first condition, including:
  • the non-TTI Bundling uplink subframe is allocated to the transport block
  • the non-TTI Bundling uplink subframe is allocated to the first arriving transport block among the N transport blocks;
  • the TDD uplink and downlink configuration is TDD uplink and downlink configuration 0.
  • the TTI Bundling uplink subframe is a group, the first group of non-TTI Bundling uplink subframes is allocated to the first VoIP transport block, the second group of non-TTI Bundling uplink subframes is not allocated, and the i (i > 3) group is not TTI Bundling.
  • the uplink subframes are sequentially allocated to the i-1th VoIP transport block.
  • the TDD uplink and downlink configuration is TDD uplink and downlink configuration 6.
  • TDD uplink and downlink configuration 6 For TDD uplink and downlink configuration 6
  • the VoIP transport block allocates all non-TTI Bundling uplink subframes after the first VoIP transport block arrival time to a group of two non-TTI Bundling uplink subframes, and the first group of non-TTI Bundling uplink subframes is assigned to the first one.
  • Group 2 and Group 3 non-TTI Bundling uplink subframes are not allocated, Group 4 non-TTI Bundling uplink subframes are allocated to the second VoIP transport block, and Group 5 non-TTI Bundling uplink subframes are assigned to The third VoIP transport block, the sixth group of non- ⁇ Bundling uplink subframes are not allocated; the i-th (i > 7) group of non-TTI Bundling uplink subframes are sequentially allocated to the i-th VoIP transport block.
  • the device also includes a response unit, wherein: The response unit is configured to determine, in the TDD uplink and downlink configuration 0 and the TDD uplink and downlink configuration 6 VoIP transport block, that the acknowledgment ACK/non-acknowledgment NACK feedback number of the VoIP transport block downlink is equal to the ⁇ Bundling maximum hybrid automatic repeat request HARQ transmission number, And determining, according to the TTI Bundling transmission, the P*Qth subframe in the uplink subframe to determine the downlink subframe in which the P (P > 1) ACK/NACK is transmitted, where Q is a HARQ transmission attempt for TTI Bundling transmission. The number of consecutive uplink subframes allocated.
  • the responding unit determines, according to the PTI Bundling transmission, the P*Qth subframe in the determined uplink subframe, the downlink subframe that transmits the P (P > 1) ACK/NACK, including:
  • the downlink subframe in which the Pth ACK/NACK is transmitted is the first downlink subframe whose index is greater than or equal to X+4, where X is the subframe index of the P*Qth TTI Bundling transmission determined uplink subframe.
  • the apparatus also includes an indication unit, wherein:
  • An indicating unit configured to implicitly indicate, by using a transmission parameter, a non-TTI Bundling transmission, a ⁇ Bundling transmission, or an enhanced TTI Bundling transmission;
  • the transmission parameters include:
  • One or more of an uplink grant type, an uplink grant resource first index, a transport block frequency domain resource block first index, and a transport block initial transmission time domain subframe index are included in an uplink grant type, an uplink grant resource first index, a transport block frequency domain resource block first index, and a transport block initial transmission time domain subframe index.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device, which can be centralized on a single computing device or distributed over a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be executed in a different order than herein.
  • the steps shown or described are either made separately into individual integrated circuit modules, or a plurality of 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 TTI Bundling transmission of the VoIP transport block has determined the uplink subframe, and the non-TTI Bundling uplink subframe is continuously allocated to the VoIP transport block, thereby realizing the maximum uplink subframe utilization under the 50 ms delay limit.
  • the rate and the backward compatibility are maintained, thereby further improving the coverage performance of the uplink VoIP service under the TDD frame structure.

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Abstract

一种增强传输时间间隔集束(TTI Bundling)传输方法,该方法包括以下步骤:针对不同的时分双工(TDD)上下行配置,将非TTI Bundling上行子帧分配给传输块进行所述传输块的上行传输,其中,所述非TTI Bundling上行子帧是指除TTI Bundling传输已确定上行子帧以外的上行子帧。

Description

一种增强传输时间间隔集束传输方法及装置
技术领域
本发明涉及长期演进(Long Term Evolution, 简称 LTE ) 系统, 尤其涉 及一种增强传输时间间隔集束传输方法及装置。 背景技术
长期演进 LTE系统无线接入网络包括: 增强节点 B ( enhanced Node B , 简称 eNB ) 与用户设备 ( User Equipment , 简称 UE ) , 其中, eNB与核心网 络或其它网络相连, 并通过无线接口与位于该 eNB所服务的小区中的 UE进 行通信。 为提升上行链路(Uplink, 简称 UL ) 网间语音(Voice over Internet Protocol ,简称 VoIP )业务覆盖, LTE物理层针对频分双工( Frequency Division Duplex, 简称 FDD ) 帧结构及时分双工 ( Time Division Duplex, 简称 TDD ) 帧结构下的上下行配置 0、 配置 1 和配置 6 引入了传输时间间隔集束 ( Transmission Time Internal Bundling, 简称 TTI Bundling )传输技术。 其中 , TTI Bundling是指 eNB调度器为 UE分配超过 1个传输时间间隔( Transmission Time Internal, 简称 TTI ) 的无线资源; 它的基本思想是允许 UE使用连续的 上行 TTI或子帧连续发送同一 VoIP传输块的冗余版本( Redundancy Version, 简称 RV ),并将上述操作作为该 VoIP传输块的 1次混合自动重传请求( Hybrid Automatic Repetition Request, 简称 HARQ )传输尝试。 需要说明的是: 由于 TTI或子帧通常是等价的, 所以本文的后续内容不再对两者进行区分。
如图 1所示, 为关于 TDD帧结构上下行配置 0的 TTI Bundling传输方 法。 每个无线帧 (10ms ) 范围内包括 6 个上行子帧。 具体地, 对于非 ΤΉ Bundling传输, 总共 7个 HARQ进程被使用, 连续索引的上行子帧依次循环 分配给上述 7个 HARQ进程; 对于 TTI Bundling传输, 总共 3个 HARQ进 程被使用, 其中, 每 14 ( 2x7 )个连续非 TTI Bundling HARQ进程 {1(1),2(1), ..., ι),^),^),...,^)}中, 最前面 4 个进程 {ld^d^W^1)}对应 TTI Bundling
HARQ进程 1 ,后面 4个进程 0),^1)^1),:^2)}对应 TTI Bundling HARQ进程 2 , 再后面 4个进程 {2(2),3(2),4(2),5(2)}对应 TTI Bundling HARQ进程 3 , 最后面 2 个进程 {6(2),7(2)}在 TTI Bundling传输情况下不再被使用 (注意: 小括号中上 标 1和上标 2表示第 1组和第 2组的 7个 HARQ进程 )„通常要求 VoIP业务 的空中接口延时被限制在 50ms范围内, 因此, 对于 TTI Bundling传输允许 的最大 HARQ传输次数为 2次(即占据 8个上行子帧资源)。
通常 VoIP传输块是每 20ms到达, 且对于 TDD上下行配置 0每 20ms 范围内是包括 12个上行子帧, 因此在 50ms延时限制内每个 VoIP传输块至 多能够使用 12个上行子帧。根据前面内容所述,当前的 TDD上下行配置 0 ΤΉ Bundling传输基于最大的 2次 HARQ传输至多能够使用 8个上行子帧资源, 没有达到最大的上行子帧利用率,从而 VoIP业务的覆盖性能还有进一步提升 的空间。
如图 2所示, 为关于 TDD帧结构上下行配置 6的 TTI Bundling传输方 法。 每个无线帧 (10ms ) 范围内包括 5 个上行子帧。 具体地, 对于非 ΤΉ Bundling传输, 总共 6个 HARQ进程被使用, 连续索引的上行子帧依次循环 分配给上述 6个 HARQ进程; 对于 TTI Bundling传输, 总共 3个 HARQ进 程被使用, 其中, 每 12 ( 2x6 )个连续非 TTI Bundling HARQ进程 {1(1),2(1), .. ^(ι), ^),^),.. .,^)}中, 最前面 4 个进程 { l d^d^W^1)}对应 TTI Bundling
HARQ进程 1 ,后面 4个进程 0),^1),:^2) 2)}对应 TTI Bundling HARQ进程 2 , 最后面 4个进程 {3(2),4(2),5(2),6(2)}对应 TTI Bundling HARQ进程 3 (注意: 小 括号中上标 1和上标 2分别表示第 1组和第 2组的 6个 HARQ进程 )„ 通常 要求 VoIP 业务的空中接口延时被限制在 50ms 范围内, 因此, 对于 ΤΉ Bundling传输, 允许的最大 HARQ传输次数为 2次(即占据 8个上行子帧资 源)。
通常 VoIP传输块是每 20ms到达, 且对于 TDD上下行配置 6每 20ms 范围内是包括 10个上行子帧, 因此在 50ms延时限制内每个 VoIP传输块至 多能够使用 10个上行子帧。根据前面内容所述,当前的 TDD上下行配置 6 ΤΉ Bundling传输基于最大的 2次 HARQ传输至多能够使用 8个上行子帧资源, 没有达到最大的上行子帧利用率,从而 VoIP业务的覆盖性能还有进一步提升 的空间。 发明内容
本发明要解决的技术问题是提供一种增强传输时间间隔集束传输方法及 装置, 能够提升 VoIP业务的上行覆盖性能。
为解决上述技术问题, 本发明的一种增强传输时间间隔集束传输方法, 包括: 针对不同的时分双工 TDD上下行配置, 将非传输时间间隔集束 ΤΉ Bundling上行子帧分配给传输块进行所述传输块的上行传输;
其中,所述非 TTI Bundling上行子帧是指除 TTI Bundling传输已确定上 行子帧以外的上行子帧。
优选地, 所述针对不同的时分双工 TDD上下行配置,将非 TTI Bundling 上行子帧分配给传输块进行所述传输块的上行传输, 包括:
根据 TDD上下行配置,确定 TDD上下行配置下的 TTI Bundling传输已 确定上行子帧和非 TTI Bundling上行子帧;
根据传输块的特征, 为传输块分配所述非 TTI Bundling上行子帧; 其中, 所述传输块的特征包括: 到达周期和允许的最大传输延时。
优选地, 所述根据传输块的特征, 为传输块分配所述非 TTI Bundling上 行子帧, 包括: 将非 TTI Bundling上行子帧分配给满足第一条件的传输块; 所述第一条件包括: 传输块在所述非 TTI Bundling上行子帧之前到达, 且传 输块已分配的非 TTI Bundling上行子帧的数量小于数值 Z;
其中, 所述数值 Z是最大非 TTI Bundling上行子帧数, 所述最大非 ΤΉ Bundling上行子帧数等于理想的最大分配上行子帧数减去传输块的允许的最 大传输延时时间范围内的 TTI Bundling传输已确定上行子帧数; 其中, 所述 理想的最大分配上行子帧数等于传输块的到达周期大小的时间范围内的上行 子帧总数。
优选地,所述将非 TTI Bundling上行子帧分配给满足第一条件的传输块, 包括:
如果满足第一条件的传输块存在 1个,则将所述非 TTI Bundling上行子 帧分配给该传输块;
如果满足第一条件传输块存在 N ( N>1 )个, 则将所述非 TTI Bundling 上行子帧分配给 N个传输块中最先到达的传输块;
如果不存在满足第一条件的传输块,则不分配所述非 TTI Bundling上行 子帧。
优选地, 所述 TDD上下行配置为 TDD上下行配置 0,对于所述 TDD上 下行配置 0下的网间语音 VoIP传输块,将第 1个 VoIP传输块到达时刻后的 所有非 TTI Bundling上行子帧,以连续 4个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling上行子帧分配给第 1个 VoIP传输块, 第 2组非 ΤΉ Bundling上行子帧不分配, 第 i ( i > 3 )组非 TTI Bundling上行子帧依次分配 给第 i-1个 VoIP传输块。
优选地, 所述 TDD上下行配置为 TDD上下行配置 6 ,对于所述 TDD上 下行配置 6下的 VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 ΤΉ Bundling上行子帧, 以连续 2个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling上行子帧分配给第 1个 VoIP传输块, 第 2组和第 3组非 ΤΉ Bundling上行子帧不分配,第 4组非 TTI Bundling上行子帧分配给第 2个 VoIP 传输块, 第 5组非 TTI Bundling上行子帧分配给第 3个 VoIP传输块, 第 6 组非 TTI Bundling上行子帧不分配; 第 i ( i > 7 )组非 TTI Bundling上行子帧 依次分配给第 i-3个 VoIP传输块。
优选地, 还包括:
对于 TDD上下行配置 0和 TDD上下行配置 6下的 VoIP传输块, VoIP 传输块下行的确认 ACK/非确认 NACK反馈数等于 TTI Bundling最大混合自 动重传请求 HARQ传输次数,并且根据 TTI Bundling传输已确定上行子帧中 的第 P*Q个子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 其中, Q是为 TTI Bundling传输的一次 HARQ传输尝试所分配的连续的上行子帧 数。
优选地,所述根据 TTI Bundling传输已确定上行子帧中的第 P*Q个子帧 确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 包括: 发射所述第 P个 ACK/NACK的下行子帧是索引大于等于 X+4的第 1个下行子帧, 其中, X 是所述第 P*Q个 TTI Bundling传输已确定上行子帧的子帧索引。
优选地,还包括: 通过传输参数隐式指示釆用非 TTI Bundling传输、 ΤΉ Bundling传输或增强 TTI Bundling传输; 其中, 所述传输参数包括: 上行授 予类型、 上行授予资源第一索引、 传输块频域资源块第一索引以及传输块初 始传输时域子帧索引中的一种或多种。
一种增强传输时间间隔集束传输装置, 包括: 配置确定单元和分配单元, 其中: 所述配置确定单元, 设置为: 确定釆用的时分双工 TDD上下行配置; 所述分配单元, 设置为: 针对不同的时分双工 TDD 上下行配置, 将非 传输时间间隔集束 TTI Bundling上行子帧分配给传输块进行所述传输块的上 行传输; 其中, 所述非 TTI Bundling上行子帧是指除 TTI Bundling传输已确 定上行子帧以外的上行子帧。
优选地, 所述分配单元包括子帧确定子单元和分配子单元, 其中: 所述子帧确定子单元, 设置为: 根据 TDD上下行配置, 确定 TDD上下 行配置下的 TTI Bundling传输已确定上行子帧和非 TTI Bundling上行子帧; 所述分配子单元,设置为:根据传输块的特征,为传输块分配所述非 ΤΉ Bundling上行子帧; 其中, 所述传输块的特征包括: 到达周期和允许的最大 传输延时。
优选地, 所述分配子单元设置为: 根据传输块的特征, 为传输块分配所 述非 TTI Bundling上行子帧, 包括:
所述分配子单元将非 TTI Bundling上行子帧分配给满足第一条件的传 输块; 所述第一条件包括:传输块在所述非 TTI Bundling上行子帧之前到达, 且传输块已分配的非 TTI Bundling上行子帧的数量小于数值 Z;
其中, 所述数值 Z是最大非 TTI Bundling上行子帧数, 所述最大非 ΤΉ Bundling上行子帧数等于理想的最大分配上行子帧数减去传输块的允许的最 大传输延时时间范围内的 TTI Bundling传输已确定上行子帧数; 其中, 所述 理想的最大分配上行子帧数等于传输块的到达周期大小的时间范围内的上行 子帧总数。
优选地, 所述分配子单元设置为: 将非 TTI Bundling上行子帧分配给满 足第一条件的传输块, 包括: 如果满足第一条件的传输块存在 1个,则将所述非 TTI Bundling上行子 帧分配给该传输块;
如果满足第一条件传输块存在 N ( N>1 )个, 则将所述非 TTI Bundling 上行子帧分配给 N个传输块中最先到达的传输块;
如果不存在满足第一条件的传输块,则不分配所述非 TTI Bundling上行 子帧。
优选地, 所述 TDD上下行配置为 TDD上下行配置 0,对于所述 TDD上 下行配置 0下的网间语音 VoIP传输块,将第 1个 VoIP传输块到达时刻后的 所有非 TTI Bundling上行子帧,以连续 4个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling上行子帧分配给第 1个 VoIP传输块, 第 2组非 ΤΉ Bundling上行子帧不分配, 第 i ( i > 3 )组非 TTI Bundling上行子帧依次分配 给第 i-1个 VoIP传输块。
优选地, 所述 TDD上下行配置为 TDD上下行配置 6,对于所述 TDD上 下行配置 6下的 VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 ΤΉ Bundling上行子帧, 以连续 2个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling上行子帧分配给第 1个 VoIP传输块, 第 2组和第 3组非 ΤΉ Bundling上行子帧不分配,第 4组非 TTI Bundling上行子帧分配给第 2个 VoIP 传输块, 第 5组非 TTI Bundling上行子帧分配给第 3个 VoIP传输块, 第 6 组非 TTI Bundling上行子帧不分配; 第 i ( i > 7 )组非 TTI Bundling上行子帧 依次分配给第 i-3个 VoIP传输块。
优选地, 所述装置还包括应答单元, 其中:
所述应答单元, 设置为: 对于 TDD上下行配置 0和 TDD上下行配置 6 下的 VoIP传输块, 确定 VoIP传输块下行的确认 ACK/非确认 NACK反馈数 等于 TTI Bundling最大混合自动重传请求 HARQ传输次数, 并且根据 ΤΉ Bundling传输已确定上行子帧中的第 P*Q 个子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 其中, Q是为 TTI Bundling传输的一次 HARQ传 输尝试所分配的连续的上行子帧数。
优选地, 所述应答单元设置为: 根据 TTI Bundling传输已确定上行子帧 中的第 P*Q个子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 包括: 发射所述第 P个 ACK/NACK的下行子帧是索引大于等于 X+4的第 1个下行 子帧, 其中, X是所述第 P*Q个 TTI Bundling传输已确定上行子帧的子帧索 引。
优选地, 所述装置还包括指示单元, 其中: 所述指示单元, 设置为: 通 过传输参数隐式指示釆用非 TTI Bundling传输、 TTI Bundling传输或增强 TTI Bundling传输; 其中, 所述传输参数包括: 上行授予类型、 上行授予资源第 一索引、 传输块频域资源块第一索引以及传输块初始传输时域子帧索引中的 一种或多种。
综上所述, 本发明实施例在 VoIP传输块的 TTI Bundling传输已确定上 行子帧以外, 通过将非 TTI Bundling上行子帧继续分配给 VoIP传输块, 实 现了在 50ms延时限制下的最大上行子帧利用率, 并保持了后向兼容性, 从 而进一步提升了 TDD帧结构下上行 VoIP业务的覆盖性能。 附图概述
图 1是相关技术中关于 TDD帧结构上下行配置 0的 TTI Bundling传输 方法的示意图;
图 2是相关技术中关于 TDD帧结构上下行配置 6的 TTI Bundling传输 方法的示意图;
图 3 是本发明实施方式的关于 TDD 帧结构上下行配置 0 的增强 ΤΉ Bundling传输方法的示意图;
图 4是本发明实施方式的关于 TDD 帧结构上下行配置 6 的增强 ΤΉ Bundling传输方法的示意图;
图 5是本发明实施方式的增强传输时间间隔集束传输装置的架构图。 本发明的较佳实施方式
本申请的增强传输时间间隔集束传输方法, 包括:
针对不同的 TDD上下行配置, 将非 TTI Bundling上行子帧分配给传输 块进行传输块的上行传输; 其中,非 TTI Bundling上行子帧是指除 TTI Bundling传输已确定上行子 帧以外的其它上行子帧。
TTI Bundling传输已确定上行子帧是指按照现有 TTI Bundling传输方法 在 TDD上下行配置中为传输块分配的进行上行传输的子帧。
针对不同的 TDD上下行配置, 将非 TTI Bundling上行子帧分配给传输 块进行传输块的上行传输, 包括:
根据 TDD上下行配置, 确定该配置下的 TTI Bundling传输已确定上行 子帧和非 TTI Bundling上行子帧;
根据传输块的特征, 为传输块分配非 TTI Bundling上行子帧。
其中, 所述传输块的特征包括: 到达周期和允许的最大传输延时。 本申请中根据传输块的特征, 为传输块分配非 TTI Bundling上行子帧, 包括:
将非 TTI Bundling上行子帧分配给满足第一条件的传输块;所述第一条 件包括: 传输块在非 TTI Bundling上行子帧之前到达, 且传输块已分配的非 TTI Bundling上行子帧的数量小于数值 Z;
其中, 所述数值 Z是最大非 TTI Bundling上行子帧数, 所述最大非 ΤΉ Bundling上行子帧数等于理想的最大分配上行子帧数减去传输块的允许的最 大传输延时时间范围内的 TTI Bundling传输已确定上行子帧数; 其中, 所述 理想的最大分配上行子帧数等于传输块的到达周期大小的时间范围内的上行 子帧总数。
本申请中将非 TTI Bundling上行子帧分配给满足第一条件的传输块, 包 括:
如果满足第一条件的传输块存在 1个,则将非 TTI Bundling上行子帧分 配给这个传输块;
如果满足第一条件的传输块存在 N ( N>1 )个, 则将非 TTI Bundling上 行子帧分配给 N个传输块中最先到达的传输块;
如果不存在满足第一条件传输块, 则不分配 TTI Bundling上行子帧。 具体, 所述 TDD上下行配置为 TDD上下行配置 0,对于 TDD上下行配 置 0 下的 VoIP传输块, 将第 1 个 VoIP传输块到达时刻后的所有非 ΤΉ Bundling上行子帧, 以连续 4个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling上行子帧分配给第 1个 VoIP传输块, 第 2组非 TTI Bundling 上行子帧不分配; 第 i ( i > 3 )组非 TTI Bundling上行子帧依次分配给第 i-1 个 VoIP传输块。
具体, 所述 TDD上下行配置为 TDD上下行配置 6,对于 TDD上下行配 置 6下的 VoIP传输块,将第 1个 VoIP传输块到达时刻后所有非 TTI Bundling 上行子帧,以连续 2个非 TTI Bundling上行子帧为一组,第 1组非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块, 第 2组和第 3组非 TTI Bundling上行 子帧不分配; 第 4组非 TTI Bundling上行子帧分配给第 2个 VoIP传输块, 第 5组非 TTI Bundling上行子帧分配给第 3个 VoIP传输块, 第 6组非 ΤΉ Bundling上行子帧不分配; 第 i ( i > 7 )组非 TTI Bundling上行子帧依次分配 给第 i-3个 VoIP传输块。
具体, 对于 TDD上下行配置 0和配置 6下的 VoIP传输块, VoIP传输 块下行的确认 ACK/非确认 NACK反馈数等于 TTI Bundling最大 HARQ传输 次数,并且根据 TTI Bundling传输已确定上行子帧中第 P*Q个 TTI Bundling 传输已确定上行子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 其 中, Q是 TTI Bundling传输的一次 HARQ传输尝试所分配的连续的上行子帧 数, 即 TTI Bundling大小。
具体地,发射第 P个 ACK/NACK的下行子帧是索引大于等于 X+4的第 1个下行子帧, 其中, X是所述第 P*Q个 TTI Bundling传输已确定上行子帧 的子帧索引。
本申请中增强 TTI Bundling传输方法的执行主体是 eNB调度器和 UE, 即 eNB调度器和 UE按照所述增强 TTI Bundling传输方法, 执行增强 ΤΉ Bundling传输模式下的发射或接收。
本实施方式中, 通过传输参数隐式指示釆用非 TTI Bundling传输、 ΤΉ Bundling传输或增强 TTI Bundling传输;
其中, 所述传输参数包括: 上行授予 (UL Grant )类型、 上行授予资源第一索引、 传输块频域资源 块第一索引以及传输块初始传输时域子帧索引中的一种或多种。
UE 可以通过自身获取或基站发送的方式获得上述传输参数, 从而获知 釆用非 TTI Bundling传输, TTI Bundling传输, 还是釆用增强 TTI Bundling 传输。
例如, 上行授予类型包括半持续 (SPS ) 的上行授予和非半持续的上行 授予, 可以通过半持续的上行授予指示釆用非 TTI Bundling传输, 通过非半 持续的上行授予指示釆用 TTI Bundling传输或增强 TTI Bundling传输(具体 是 TTI Bundling传输还是增强 TTI Bundling传输通过非半持续上行授予有效 载荷中的显式信息指示) 。
例如,上行授予资源表示承载上行授予信息的至少一个物理或逻辑资源, 上行授予资源第一索引表示所述至少一个物理或逻辑资源中的第一个物理或 逻辑资源的索引; 将可能的上行授予资源第一索引分为 3个组, 并通过第 1 组的上行授予资源第一索引指示釆用非 TTI Bundling传输, 通过第 2组的上 行授予资源第一索引指示釆用 TTI Bundling传输,通过第 3组的上行授予资 源第一索引指示釆用增强 TTI Bundling传输。
传输参数中的传输块频域资源块第一索引和传输块初始传输时域子帧索 引与所述上行授予资源第一索引的指示方式类似。
以下结合附图对本发明的优选实施例进行详细说明, 应当理解, 以下所 说明的优选实施例仅用于说明和解释本发明, 并不用于限定本发明。
需要说明的是: 在图 1至图 4中, 标记 D表示下行子帧, 标记 U表示上 行子帧, 标记 S表示特殊子帧, 但可以被用作下行子帧; 因此, 本文将标记 为 D和 S的子帧都看作是下行子帧。
如图 3所示, 为关于 TDD帧结构上下行配置 0的增强 TTI Bundling传 输方法; 为进一步提高上行子帧利用率并保持后向兼容性, 在 TTI Bundling 传输已确定上行子帧分配基础之上,继续将非 TTI Bundling上行子帧分配给 VoIP传输块, 从而使每个 VoIP传输块的上行子帧利用率达到最大。
如果不考虑图 3中虚线圈包住的非 TTI Bundling上行子帧资源的分配, 则图 3退化为图 1描述的 TTI Bundling传输(共 3个 TTI Bundling HARQ进 程, 每个 VoIP传输块最多传输 2次, 占据 8个上行子帧资源) 。
如图 3所示, 在 100ms ( 100子帧, 包括上下行子帧) 的时间范围内, 非 TTI Bundling上行子帧的子帧索引包括:
9,10,13,14,15,18,19,20,23,24,39,40,
43,44,45,48,69,70,79,80,83,84,93,94.
已知 VoIP传输块到达周期是 20ms, 允许的最大传输延时是 50ms;
此时, 理想的最大分配上行子帧数等于 12 (到达周期 20ms的时间范围 内的上行子帧总数) , 最大非 TTI Bundling上行子帧数等于 4 (理想的最大 分配上行子帧数 12减去允许的最大传输延时 50ms内的 TTI Bundling传输已 确定上行子帧数 8 ) 。
对于索引为 9的非 TTI Bundling上行子帧,确定在该子帧之前到达且分 配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4 的 VoIP传输块有 1个, 即第 1个到达的 VoIP传输块, 当前已分配给第 1个 VoIP传输块的非 TTI Bundling上行子帧数是 0个,将该非 TTI Bundling上行 子帧分配给第 1个 VoIP传输块。
对于索引为 10的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 1个到达的 VoIP传输块, 当前已分配给第 1 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块。
对于索引为 13的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 1个到达的 VoIP传输块, 当前已分配给第 1 个 VoIP传输块的非 TTI Bundling上行子帧数是 2个, 将该非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块。
对于索引为 14的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 1个到达的 VoIP传输块, 当前已分配给第 1 个 VoIP传输块的非 TTI Bundling上行子帧数是 3个, 将该非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块。
对于索引为 15的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 0个, 所以对该非 TTI Bundling 上行子帧不再进行分 配;类似地,对于索引分别为 18、 19和 20的 3个非 TTI Bundling上行子帧, 同样是不再进行分配。
对于索引为 23的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 2个到达的 VoIP传输块, 当前已分配给第 2 个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 2个 VoIP传输块。
对于索引为 24的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 2个到达的 VoIP传输块, 当前已分配给第 2 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 2个 VoIP传输块。
对于索引为 39的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 2个到达的 VoIP传输块, 当前已分配给第 2 个 VoIP传输块的非 TTI Bundling上行子帧数是 2个, 将该非 TTI Bundling 上行子帧分配给第 2个 VoIP传输块。
对于索引为 40非 TTI Bundling上行子帧, 确定在该子帧之前到达且分 配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4 的 VoIP传输块有 1个, 即第 2个到达的 VoIP传输块, 当前已分配给第 2 个 VoIP传输块的非 TTI Bundling上行子帧数是 3个, 将该非 TTI Bundling 上行子帧分配给第 2个 VoIP传输块。
对于索引为 43的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 3个到达的 VoIP传输块, 当前已分配给第 3 个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 3个 VoIP传输块。
对于索引为 44的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 3个到达的 VoIP传输块, 当前已分配给第 3 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 3个 VoIP传输块。
对于索引为 45的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 3个到达的 VoIP传输块, 当前已分配给第 3 个 VoIP传输块的非 TTI Bundling上行子帧数是 2个, 将该非 TTI Bundling 上行子帧分配给第 3个 VoIP传输块。
对于索引为 48非 TTI Bundling上行子帧, 确定在该子帧之前到达且分 配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4 的 VoIP传输块有 1个, 即第 3个到达的 VoIP传输块, 当前已分配给第 3 个 VoIP传输块的非 TTI Bundling上行子帧数是 3个, 将该非 TTI Bundling 上行子帧分配给第 3个 VoIP传输块。
对于索引为 69的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 4个到达的 VoIP传输块, 当前已分配给第 4 个 VoIP数据包的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 4个 VoIP传输块。
对于索引为 70的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 4个到达的 VoIP传输块, 当前已分配给第 4 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 4个 VoIP传输块。 对于索引为 79的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 4个到达的 VoIP传输块, 当前已分配给第 4 个 VoIP传输块的非 TTI Bundling上行子帧数是 2个, 将该非 TTI Bundling 上行子帧分配给第 4个 VoIP传输块。
对于索引为 80的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 4个到达的 VoIP传输块, 当前已分配给第 4 个 VoIP传输块的非 TTI Bundling上行子帧数是 3个, 将该非 TTI Bundling 上行子帧分配给第 4个 VoIP传输块。
对于索引为 83的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 5个到达的 VoIP传输块, 当前已分配给第 5 个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 5个 VoIP传输块。
对于索引为 84的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 5个到达的 VoIP传输块, 当前已分配给第 5 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 5个 VoIP传输块。
对于索引为 93的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 5个到达的 VoIP传输块, 当前已分配给第 5 个 VoIP传输块的非 TTI Bundling上行子帧数是 2个, 将该非 TTI Bundling 上行子帧分配给第 5个 VoIP传输块。
对于索引为 94的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 4的 VoIP传输块有 1个, 即第 5个到达的 VoIP传输块, 当前已分配给第 5 个 VoIP传输块的非 TTI Bundling上行子帧数是 3个, 将该非 TTI Bundling 上行子帧分配给第 5个 VoIP传输块。
对于所述 100ms之后的其它非 TTI Bundling上行子帧,同样按照类似方 法将其分配给相应的 VoIP传输块。
最终, 如表 1所示, 对于 TDD上下行配置 0下的 VoIP传输块: 第 1个 VoIP传输块到达时刻后的所有非 TTI Bundling上行子帧, 以连 续 4个非 TTI Bundling上行子帧为一组,第 1组非 TTI Bundling上行子帧分 配给第 1个 VoIP传输块, 第 2组非 TTI Bundling上行子帧不分配; 第 i ( i > 3 )组非 TTI Bundling上行子帧依次分配给第 i-1个 VoIP传输块。
表 1
Figure imgf000017_0001
对于 TDD上下行配置 0下的 VoIP传输块:
已知 TTI Bundling传输的一次 HARQ传输尝试所分配的连续的上行子帧 数 Q (即 TTI Bundling大小)是 4; 在 50ms的延时限制下, TTI Bundling最 大 HARQ传输次数是 2次(如图 1所示 ) 。
增强 TTI Bundling传输的下行 ACK/NACK反馈数等于 TTI Bundling最 大 HARQ传输次数 2。 根据 TTI Bundling传输已确定上行子帧中第 Q ( =4 ) 个和第 2*Q ( =2*4=8 )个子帧分别确定发射第 1个和第 2个 ACK/NACK反 馈的下行子帧; 具体地, 发射第 1个和第 2个 ACK/NACK反馈的下行子帧 分别是索引大于等于 Xi+4和 X2+4的第 1个下行子帧, 其中, 和 分别 是第 Q ( =4 )和第 2*Q ( =8 )个 TTI Bundling传输已确定上行子帧的子帧索 引 (如图 3所示) 。
以第 1个到达 VoIP传输块为例: 已知 TTI Bundling传输已确定上行子帧的子帧索引是
3,4,5,8,25,28,29,30,
根据上述 8个子帧中的第 4个(子帧索引是 8 )和第 8个(子帧索引是 30 )子帧分别确定发射第 1个和第 2个 ACK/NACK反馈的下行子帧; 具体 地, 发射第 1个 ACK/NACK反馈的下行子帧是索引大于等于 12 ( =8+4 ) 的 第 1 个下行子帧 (即子帧索引是 12 的下行子帧) , 类似地, 发射第 2 个 ACK/NACK反馈的下行子帧是索引大于等于 34 ( =30+4 )的第 1个下行子帧 (即子帧索引是 36的下行子帧) 。
如图 4所示, 为关于 TDD帧结构上下行配置 6的增强 TTI Bundling传 输方法; 为进一步提高上行子帧利用率并保持后向兼容性, 在 TTI Bundling 传输已确定上行子帧分配基础之上,继续将非 TTI Bundling上行子帧分配给 VoIP传输块, 从而使每个 VoIP传输块的上行子帧利用率达到最大。
如果不考虑图 4中虚线圈包住的非 TTI Bundling上行子帧资源的分配, 则图 4退化为图 2描述的 TTI Bundling传输(共 3个 TTI Bundling HARQ进 程, 每个 VoIP传输块最多传输 2次, 占据 8个上行子帧资源) 。
如图 4所示, 在 100ms ( 100子帧, 包括上下行子帧) 的时间范围内, 非 TTI Bundling上行子帧的子帧索引包括:
9,13,14,15,18,19,23,24,49,53,54,55,89,93,94,95.
已知 VoIP传输块到达周期是 20ms, 允许的最大传输延时是 50ms; 此时, 理想的最大分配上行子帧数等于 10 (到达周期 20ms的时间范围 内的上行子帧总数) , 最大非 TTI Bundling上行子帧数等于 2 (理想的最大 分配上行子帧数 10减去允许的最大传输延时 50ms内的 TTI Bundling传输已 确定上行子帧数 8 ) 。
对于索引为 9的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 1个到达的 VoIP传输块, 当前已分配给第 1 个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块。 对于索引为 13的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 1个到达的 VoIP传输块, 当前已分配给第 1 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块。
对于索引为 14的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 0个, 所以对该非 TTI Bundling 上行子帧不再进行分 配;类似地,对于索引分别为 15、 18和 19的 3个非 TTI Bundling上行子帧, 同样是不再进行分配。
对于索引为 23的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 2个到达的 VoIP传输块, 当前已分配给第 2 个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 2个 VoIP传输块。
对于索引为 24的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 2个到达的 VoIP传输块, 当前已分配给第 2 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 2个 VoIP传输块。
对于索引为 49的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 3个到达的 VoIP传输块, 当前已分配给第 3 个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 3个 VoIP传输块。
对于索引为 53的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 3个到达的 VoIP传输块, 当前已分配给第 3 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 3个 VoIP传输块。
对于索引为 54的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 0个, 所以对该非 TTI Bundling 上行子帧不再进行分 配; 类似地, 对于索引为 55的非 TTI Bundling上行子帧, 同样是不再进行 分配。
对于索引为 89的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 2个, 即第 4个和第 5个到达的 VoIP传输块, 当前已分 配给第 4个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 当前已分配 给第 5个 VoIP传输块的非 TTI Bundling上行子帧数同样是 0个,将该非 TTI Bundling上行子帧分配给优先到达的第 4个 VoIP传输块。
对于索引为 93非 TTI Bundling上行子帧, 确定在该子帧之前到达且分 配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2 的 VoIP传输块有 2个, 即第 4个和第 5个到达的 VoIP传输块, 当前已分配 给第 4个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 当前已分配给 第 5 个 VoIP传输块的非 TTI Bundling上行子帧数是 0 个, 将该非 TTI Bundling上行子帧分配给优先到达的第 4个 VoIP传输块。
对于索引为 94的非 TTI Bundling 上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 5个到达的 VoIP传输块, 当前已分配给第 5 个 VoIP传输块的非 TTI Bundling上行子帧数是 0个, 将该非 TTI Bundling 上行子帧分配给第 5个 VoIP传输块。
对于索引为 95的非 TTI Bundling上行子帧, 确定在该子帧之前到达且 分配的非 TTI Bundling上行子帧数没有达到最大非 TTI Bundling上行子帧数 2的 VoIP传输块有 1个, 即第 5个到达的 VoIP传输块, 当前已分配给第 5 个 VoIP传输块的非 TTI Bundling上行子帧数是 1个, 将该非 TTI Bundling 上行子帧分配给第 5个 VoIP传输块。
对于所述 100ms之后的其它非 TTI Bundling上行子帧,同样按照类似方 法将其分配给相应的 VoIP传输块。
最终, 如表 2所示, 对于 TDD上下行配置 6下的 VoIP传输块: 第 1个 VoIP传输块到达时刻后的所有非 TTI Bundling上行子帧, 以连 续 2个非 TTI Bundling上行子帧为一组,第 1组非 TTI Bundling上行子帧分 配给第 1个 VoIP传输块, 第 2组和第 3组的非 TTI Bundling上行子帧不再 分配; 第 4组非 TTI Bundling上行子帧分配给第 2个 VoIP传输块, 第 5组 非 TTI Bundling上行子帧分配给第 3个 VoIP传输块,第 6组非 TTI Bundling 上行子帧不再分配; 第 i ( i > 7 )组非 TTI Bundling上行子帧依次分配给第 i-3 个 VoIP传输块。
表 2
Figure imgf000021_0001
对于 TDD上下行配置 6下的 VoIP传输块:
已知 TTI Bundling传输的一次 HARQ传输尝试所分配的连续的上行子帧 数 Q (即 TTI Bundling大小)是 4; 在 50ms的延时限制下, TTI Bundling最 大 HARQ传输次数是 2次(如图 2所示 ) 。
增强 TTI Bundling传输的下行 ACK/NACK反馈数等于 TTI Bundling最 大 HARQ传输次数 2。 根据 TTI Bundling传输已确定上行子帧中第 Q ( =4 ) 个和第 2*Q ( =2*4=8 )个子帧分别确定发射第 1个和第 2个 ACK/NACK反 馈的下行子帧; 具体地, 发射第 1个和第 2个 ACK/NACK反馈的下行子帧 分别是索引大于等于 Xi+4和 X2+4的第 1个下行子帧, 其中, 和 分别 是第 Q ( =4 )和第 2*Q ( =8 )个 TTI Bundling传输已确定上行子帧的子帧索 引 (如图 4所示) 。
以第 1个到达 VoIP传输块为例:
已知 TTI Bundling传输已确定上行子帧的子帧索引是
3,4,5,8,25,28,29,33 ,
根据上述 8个子帧中的第 4个(子帧索引是 8 )和第 8个(子帧索引是 33 )子帧分别确定发射第 1个和第 2个 ACK/NACK反馈的下行子帧; 具体 地, 发射第 1个 ACK/NACK反馈的下行子帧是索引大于等于 12 ( =8+4 ) 的 第 1 个下行子帧 (即子帧索引是 12 的下行子帧) , 类似地, 发射第 2 个 ACK/NACK反馈的下行子帧是索引大于等于 37 ( =33+4 )的第 1个下行子帧 (即子帧索引是 37的下行子帧) 。
如图 5所示, 本申请还公开了一种增强传输时间间隔集束传输装置, 包 括: 配置确定单元和分配单元, 其中:
配置确定单元, 用于确定釆用的时分双工 TDD上下行配置;
分配单元, 用于针对不同的时分双工 TDD上下行配置, 将非传输时间 间隔集束 TTI Bundling上行子帧分配给传输块进行传输块的上行传输;其中, 非 TTI Bundling上行子帧是指除 TTI Bundling传输已确定上行子帧以外的上 行子帧。
分配单元包括子帧确定子单元和分配子单元, 其中:
子帧确定子单元, 用于根据 TDD上下行配置, 确定 TDD上下行配置下 的 TTI Bundling传输已确定上行子帧和非 TTI Bundling上行子帧;
分配子单元, 用于根据传输块的特征, 为传输块分配非 TTI Bundling上 行子帧; 其中, 传输块的特征包括: 到达周期和允许的最大传输延时。
分配子单元根据传输块的特征,为传输块分配非 TTI Bundling上行子帧, 包括:
分配子单元将非 TTI Bundling上行子帧分配给满足第一条件的传输块; 第一条件包括: 传输块在非 TTI Bundling上行子帧之前到达, 且传输块已分 配的非 TTI Bundling上行子帧的数量小于数值 Z;
其中, 数值 Z是最大非 TTI Bundling上行子帧数, 最大非 TTI Bundling 上行子帧数等于理想的最大分配上行子帧数减去传输块的允许的最大传输延 时时间范围内的 TTI Bundling传输已确定上行子帧数; 其中, 理想的最大分 配上行子帧数等于传输块的到达周期大小的时间范围内的上行子帧总数。
分配子单元将非 TTI Bundling上行子帧分配给满足第一条件的传输块, 包括:
如果满足第一条件的传输块存在 1个,则将非 TTI Bundling上行子帧分 配给该传输块;
如果满足第一条件传输块存在 N ( N>1 )个, 则将非 TTI Bundling上行 子帧分配给 N个传输块中最先到达的传输块;
如果不存在满足第一条件的传输块, 则不分配非 TTI Bundling上行子 帧。
TDD上下行配置为 TDD上下行配置 0, 对于 TDD上下行配置 0下的网 间语音 VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 TTI Bundling 上行子帧,以连续 4个非 TTI Bundling上行子帧为一组,第 1组非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块, 第 2组非 TTI Bundling上行子帧不分 配, 第 i ( i > 3 )组非 TTI Bundling上行子帧依次分配给第 i-1个 VoIP传输 块。
TDD上下行配置为 TDD上下行配置 6, 对于 TDD上下行配置 6下的
VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 TTI Bundling上行 子帧, 以连续 2个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块, 第 2组和第 3组非 TTI Bundling上行 子帧不分配, 第 4组非 TTI Bundling上行子帧分配给第 2个 VoIP传输块, 第 5组非 TTI Bundling上行子帧分配给第 3个 VoIP传输块, 第 6组非 ΤΉ Bundling上行子帧不分配; 第 i ( i > 7 )组非 TTI Bundling上行子帧依次分配 给第 i-3个 VoIP传输块。
所述装置还包括应答单元, 其中: 应答单元,用于对于 TDD上下行配置 0和 TDD上下行配置 6下的 VoIP 传输块, 确定 VoIP传输块下行的确认 ACK/非确认 NACK反馈数等于 ΤΉ Bundling最大混合自动重传请求 HARQ传输次数,并且根据 TTI Bundling传 输已确定上行子帧中的第 P*Q个子帧确定发射第 P ( P > 1 )个 ACK/NACK 的下行子帧, 其中, Q是为 TTI Bundling传输的一次 HARQ传输尝试所分配 的连续的上行子帧数。
应答单元根据 TTI Bundling传输已确定上行子帧中的第 P*Q个子帧确定 发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 包括:
发射第 P个 ACK/NACK的下行子帧是索引大于等于 X+4的第 1个下行 子帧, 其中, X是第 P*Q个 TTI Bundling传输已确定上行子帧的子帧索引。
所述装置还包括指示单元, 其中:
指示单元, 用于通过传输参数隐式指示釆用非 TTI Bundling传输、 ΤΉ Bundling传输或增强 TTI Bundling传输;
其中, 传输参数包括:
上行授予类型、 上行授予资源第一索引、 传输块频域资源块第一索引以 及传输块初始传输时域子帧索引中的一种或多种。
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。
尽管上文对本发明进行了详细说明, 但是本发明不限于此, 本技术领域 技术人员可以根据本发明的原理进行各种修改。 因此, 凡按照本发明原理所 作的修改, 都应当理解为落入本发明的保护范围。
工业实用性
本发明实施例在 VoIP传输块的 TTI Bundling传输已确定上行子帧以夕卜, 通过将非 TTI Bundling上行子帧继续分配给 VoIP传输块,实现了在 50ms延 时限制下的最大上行子帧利用率, 并保持了后向兼容性, 从而进一步提升了 TDD帧结构下上行 VoIP业务的覆盖性能。

Claims

权 利 要 求 书
1、 一种增强传输时间间隔集束传输方法, 包括:
针对不同的时分双工 TDD 上下行配置, 将非传输时间间隔集束 ΤΉ Bundling上行子帧分配给传输块进行所述传输块的上行传输;
其中,所述非 TTI Bundling上行子帧是指除 TTI Bundling传输已确定上 行子帧以外的上行子帧。
2、 如权利要求 1所述的方法, 其中, 所述针对不同的时分双工 TDD上 下行配置, 将非 TTI Bundling上行子帧分配给传输块进行所述传输块的上行 传输, 包括:
根据 TDD上下行配置,确定 TDD上下行配置下的 TTI Bundling传输已 确定上行子帧和非 TTI Bundling上行子帧;
根据传输块的特征, 为传输块分配所述非 TTI Bundling上行子帧; 其中, 所述传输块的特征包括: 到达周期和允许的最大传输延时。
3、 如权利要求 2 所述的方法, 其中, 所述根据传输块的特征, 为传输 块分配所述非 TTI Bundling上行子帧, 包括:
将非 TTI Bundling上行子帧分配给满足第一条件的传输块;所述第一条 件包括: 传输块在所述非 TTI Bundling上行子帧之前到达, 且传输块已分配 的非 TTI Bundling上行子帧的数量小于数值 Z;
其中, 所述数值 Z是最大非 TTI Bundling上行子帧数, 所述最大非 ΤΉ Bundling上行子帧数等于理想的最大分配上行子帧数减去传输块的允许的最 大传输延时时间范围内的 TTI Bundling传输已确定上行子帧数; 其中, 所述 理想的最大分配上行子帧数等于传输块的到达周期大小的时间范围内的上行 子帧总数。
4、 如权利要求 3所述的方法, 其中, 所述将非 TTI Bundling上行子帧 分配给满足第一条件的传输块, 包括:
如果满足第一条件的传输块存在 1个,则将所述非 TTI Bundling上行子 帧分配给该传输块;
如果满足第一条件传输块存在 N ( N>1 )个, 则将所述非 TTI Bundling 上行子帧分配给 N个传输块中最先到达的传输块;
如果不存在满足第一条件的传输块,则不分配所述非 TTI Bundling上行 子帧。
5、 如权利要求 1~4任意之一所述的方法, 其中,
所述 TDD上下行配置为 TDD上下行配置 0,对于所述 TDD上下行配置 0下的网间语音 VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 ΤΉ Bundling上行子帧, 以连续 4个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling上行子帧分配给第 1个 VoIP传输块, 第 2组非 TTI Bundling 上行子帧不分配, 第 i ( i > 3 )组非 TTI Bundling上行子帧依次分配给第 i-1 个 VoIP传输块。
6、 如权利要求 1~4任意之一所述的方法, 其中,
所述 TDD上下行配置为 TDD上下行配置 6,对于所述 TDD上下行配置 6下的 VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 TTI Bundling 上行子帧,以连续 2个非 TTI Bundling上行子帧为一组,第 1组非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块, 第 2组和第 3组非 TTI Bundling上行 子帧不分配, 第 4组非 TTI Bundling上行子帧分配给第 2个 VoIP传输块, 第 5组非 TTI Bundling上行子帧分配给第 3个 VoIP传输块, 第 6组非 ΤΉ Bundling上行子帧不分配; 第 i ( i > 7 )组非 TTI Bundling上行子帧依次分配 给第 i-3个 VoIP传输块。
7、 如权利要求 1~4任意之一所述的方法, 还包括:
对于 TDD上下行配置 0和 TDD上下行配置 6下的 VoIP传输块, VoIP 传输块下行的确认 ACK/非确认 NACK反馈数等于 TTI Bundling最大混合自 动重传请求 HARQ传输次数,并且根据 TTI Bundling传输已确定上行子帧中 的第 P*Q个子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 其中, Q是为 TTI Bundling传输的一次 HARQ传输尝试所分配的连续的上行子帧 数。
8、 如权利要求 7所述的方法, 其中, 所述根据 TTI Bundling传输已确 定上行子帧中的第 P*Q个子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行 子帧, 包括:
发射所述第 P个 ACK/NACK的下行子帧是索引大于等于 X+4的第 1个 下行子帧, 其中, X是所述第 P*Q个 TTI Bundling传输已确定上行子帧的子 帧索引。
9、 如权利要求 1~4任意之一所述的方法, 还包括:
通过传输参数隐式指示釆用非 TTI Bundling传输、 TTI Bundling传输或 增强 TTI Bundling传输;
其中, 所述传输参数包括:
上行授予类型、 上行授予资源第一索引、 传输块频域资源块第一索引以 及传输块初始传输时域子帧索引中的一种或多种。
10、 一种增强传输时间间隔集束传输装置, 包括: 配置确定单元和分配 单元, 其中:
所述配置确定单元, 设置为: 确定釆用的时分双工 TDD上下行配置; 所述分配单元, 设置为: 针对不同的时分双工 TDD 上下行配置, 将非 传输时间间隔集束 TTI Bundling上行子帧分配给传输块进行所述传输块的上 行传输; 其中, 所述非 TTI Bundling上行子帧是指除 TTI Bundling传输已确 定上行子帧以外的上行子帧。
11、 如权利要求 10 所述的装置, 其中, 所述分配单元包括子帧确定子 单元和分配子单元, 其中:
所述子帧确定子单元, 设置为: 根据 TDD上下行配置, 确定 TDD上下 行配置下的 TTI Bundling传输已确定上行子帧和非 TTI Bundling上行子帧; 所述分配子单元,设置为:根据传输块的特征,为传输块分配所述非 ΤΉ
Bundling上行子帧; 其中, 所述传输块的特征包括: 到达周期和允许的最大 传输延时。
12、 如权利要求 11 所述的装置, 其中, 所述分配子单元设置为: 根据 传输块的特征, 为传输块分配所述非 TTI Bundling上行子帧, 包括:
所述分配子单元将非 TTI Bundling上行子帧分配给满足第一条件的传 输块; 所述第一条件包括:传输块在所述非 TTI Bundling上行子帧之前到达, 且传输块已分配的非 TTI Bundling上行子帧的数量小于数值 Z;
其中, 所述数值 Z是最大非 TTI Bundling上行子帧数, 所述最大非 ΤΉ Bundling上行子帧数等于理想的最大分配上行子帧数减去传输块的允许的最 大传输延时时间范围内的 TTI Bundling传输已确定上行子帧数; 其中, 所述 理想的最大分配上行子帧数等于传输块的到达周期大小的时间范围内的上行 子帧总数。
13、如权利要求 12所述的装置,其中,所述分配子单元设置为:将非 ΤΉ Bundling上行子帧分配给满足第一条件的传输块, 包括:
如果满足第一条件的传输块存在 1个,则将所述非 TTI Bundling上行子 帧分配给该传输块;
如果满足第一条件传输块存在 N ( N>1 )个, 则将所述非 TTI Bundling 上行子帧分配给 N个传输块中最先到达的传输块;
如果不存在满足第一条件的传输块,则不分配所述非 TTI Bundling上行 子帧。
14、 如权利要求 10~13所述的装置, 其中,
所述 TDD上下行配置为 TDD上下行配置 0,对于所述 TDD上下行配置 0下的网间语音 VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 ΤΉ Bundling上行子帧, 以连续 4个非 TTI Bundling上行子帧为一组, 第 1组非 TTI Bundling上行子帧分配给第 1个 VoIP传输块, 第 2组非 TTI Bundling 上行子帧不分配, 第 i ( i > 3 )组非 TTI Bundling上行子帧依次分配给第 i-1 个 VoIP传输块。
15、 如权利要求 10~13所述的装置, 其中, 所述 TDD上下行配置为 TDD上下行配置 6,对于所述 TDD上下行配置 6下的 VoIP传输块,将第 1个 VoIP传输块到达时刻后的所有非 TTI Bundling 上行子帧,以连续 2个非 TTI Bundling上行子帧为一组,第 1组非 TTI Bundling 上行子帧分配给第 1个 VoIP传输块, 第 2组和第 3组非 TTI Bundling上行 子帧不分配, 第 4组非 TTI Bundling上行子帧分配给第 2个 VoIP传输块, 第 5组非 TTI Bundling上行子帧分配给第 3个 VoIP传输块, 第 6组非 ΤΉ Bundling上行子帧不分配; 第 i ( i > 7 )组非 TTI Bundling上行子帧依次分配 给第 i-3个 VoIP传输块。
16、 如权利要求 10~13所述的装置, 所述装置还包括应答单元, 其中: 所述应答单元, 设置为: 对于 TDD上下行配置 0和 TDD上下行配置 6 下的 VoIP传输块, 确定 VoIP传输块下行的确认 ACK/非确认 NACK反馈数 等于 TTI Bundling最大混合自动重传请求 HARQ传输次数, 并且根据 ΤΉ Bundling传输已确定上行子帧中的第 P*Q 个子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 其中, Q是为 TTI Bundling传输的一次 HARQ传 输尝试所分配的连续的上行子帧数。
17、 如权利要求 16所述的装置, 其中,
所述应答单元设置为: 根据 TTI Bundling传输已确定上行子帧中的第 P*Q个子帧确定发射第 P ( P > 1 )个 ACK/NACK的下行子帧, 包括:
发射所述第 P个 ACK/NACK的下行子帧是索引大于等于 X+4的第 1个 下行子帧, 其中, X是所述第 P*Q个 TTI Bundling传输已确定上行子帧的子 帧索引。
18、 如权利要求 10~13所述的装置, 所述装置还包括指示单元, 其中: 所述指示单元, 设置为: 通过传输参数隐式指示釆用非 TTI Bundling传 输、 TTI Bundling传输或增强 TTI Bundling传输;
其中, 所述传输参数包括:
上行授予类型、 上行授予资源第一索引、 传输块频域资源块第一索引以及传 输块初始传输时域子帧索引中的一种或多种。
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