WO2017063193A1 - Procédé de détermination de taille de blocs de transport, équipement d'utilisateur et station de base - Google Patents

Procédé de détermination de taille de blocs de transport, équipement d'utilisateur et station de base Download PDF

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Publication number
WO2017063193A1
WO2017063193A1 PCT/CN2015/092101 CN2015092101W WO2017063193A1 WO 2017063193 A1 WO2017063193 A1 WO 2017063193A1 CN 2015092101 W CN2015092101 W CN 2015092101W WO 2017063193 A1 WO2017063193 A1 WO 2017063193A1
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Prior art keywords
user equipment
tbs
transport block
resource units
allocate
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PCT/CN2015/092101
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English (en)
Chinese (zh)
Inventor
官磊
吴作敏
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华为技术有限公司
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Priority to CN201580083875.5A priority Critical patent/CN108353285B/zh
Priority to PCT/CN2015/092101 priority patent/WO2017063193A1/fr
Publication of WO2017063193A1 publication Critical patent/WO2017063193A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02—Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/04—Traffic adaptive resource partitioning

Definitions

  • the embodiments of the present invention relate to the field of communications, and more particularly, to a method, a user equipment, and a base station for determining a transport block size.
  • Orthogonal Frequency Division Multiplexing (OFDM) technology has been adopted by 3GPP organizations because of its anti-multipath capability and easy engineering implementation, and is a key technology in the LTE standard.
  • the applicable physical resources are generally divided into OFDM symbols in the time domain dimension and OFDM subcarriers in the frequency domain; one OFDM symbol in the time domain and one OFDM subcarrier in the frequency domain.
  • the time-frequency grid point constitutes a minimum resource granularity and is called a resource unit (English: Resource Element, abbreviation: RE).
  • the transmission of the service is generally based on the scheduling of the base station, and the basic unit of the scheduling is the resource block pair: a resource block pair (English: Resource Block Pair, abbreviation: RB-Pair) includes continuous time domain.
  • a resource block pair (English: Resource Block Pair, abbreviation: RB-Pair) includes continuous time domain.
  • Two resource blocks (English: Resource Block, abbreviation: RB), one RB includes 7 consecutive OFDM symbols in the time domain (6 OFDM symbols for the case of a long cyclic prefix), and 12 consecutive subcarriers in the frequency domain;
  • One RB-Pair includes two consecutive RBs in the time domain.
  • one RB-Pair occupies one subframe in time, that is, 1 ms.
  • the scheduling process of a service generally includes the following steps:
  • the base station of the LTE system selects a modulation mode, an encoding mode, and a layer number for the user equipment by using channel state information (Crystal State: CSI) reported by the user equipment.
  • CSI Channel State information
  • the base station determines the allocation of the RB-Pair according to the current transport block size (English: Transport Block Size, abbreviated TBS);
  • the base station notifies the user equipment of the modulation mode, the coding mode, the number of layers, and the RB-Pair allocated thereto; the user equipment determines the TBS according to the received indication information, and then performs operations such as demodulation and decoding.
  • the LTE system will evolve toward higher frequency points and larger bandwidths. This means that in the future, when LTE base stations implement a service scheduling, the number of resources (such as RB-Pair) scheduled may be much larger than the existing TBS. The number of resources supported by the form. This makes the existing TBS form unusable, which directly causes the user equipment and the base station to fail to communicate normally.
  • resources such as RB-Pair
  • An embodiment of the present invention provides a method for determining a transport block size to solve the problem that a user equipment and a base station cannot communicate normally when the number of resources scheduled in a service scheduling process exceeds the number of resources supported by the existing TBS table.
  • an embodiment of the present invention provides a method for determining a transport block size, where a maximum number of resource units supported by a transport block size list is NMAX , and the method includes:
  • the base station determines the resource unit allocated to the UE the number N ALLOCATE, wherein the number of resource units N ALLOCATE greater than the maximum supported transport block list resource unit number N MAX ;
  • N ALLOCATE N 1 + N 2 + ... + N M ;
  • the user equipment determines, according to a predefined rule, the number of resource units N i , including:
  • the user equipment determines the M
  • the user equipment determines the N i according to the M.
  • the user equipment determines that the M includes:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the user equipment determining that the M further includes:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • the determining, by the user equipment, the number of resource units N i according to the predefined rule includes:
  • the user equipment determines the transport block size TBS i temporary number according to the MCS and the resource units N i, wherein said maximum TBS i is not greater than the size of the coding block.
  • the size of the maximum coding block is specifically 6144.
  • the user equipment is configured according to the modulation and coding mode MCS information sent by the base station And determining the size of the transport block configured by the user equipment by using the number of resource units N i :
  • the user device to temporarily transport block size TBS i N i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N i;
  • the user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • TBS TBS 1 +TBS 2 ??+TBS i ??+TBS M .
  • an embodiment of the present invention provides a method for determining a transport block size, where a maximum number of resource units supported by a transport block size list is NMAX , and the method includes:
  • the base station sends a resource allocation indication message to the user equipment, where the resource allocation indication message includes the number of resource units N ALLOCATE allocated by the base station to the user equipment, where the number of resource units N ALLOCATE is greater than the maximum supported by the transport block list. Number of resource units N MAX ;
  • the base station further sends modulation and coding mode MCS information to the user equipment, so that the user equipment determines the size of the transport block configured by the user equipment according to the MCS, the N ALLOCATE, and a predefined rule.
  • the base station further sends modulation coding mode MCS information to the user equipment, so that the user equipment is configured according to the MCS, the N ALLOCATE, and the predefined
  • the rule determines the size of the transport block in which the user equipment is configured, including:
  • N ALLOCATE N 1 + N 2 + ... + N M .
  • the user equipment determines, according to a predefined rule, the number of resource units N i , including:
  • the user equipment determines the M
  • the user equipment determines the N i according to the M.
  • the determining, by the user equipment, that the M includes:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the user equipment determines that the M is further include:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • the determining, by the user equipment, the number of resource units N i according to the predefined rule includes:
  • the user equipment determines the transport block size TBS i temporary number according to the MCS and the resource units N i, wherein said maximum TBS i is not greater than the size of the coding block.
  • the size of the maximum coding block is specifically 6144.
  • the user equipment according to the modulation and coding mode MCS information sent by the base station, and the resource The number of units N ALLOCATE determines that the size of the transport block configured by the user equipment includes:
  • the user device to temporarily transport block size TBS i N i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N i;
  • the user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • TBS TBS 1 +TBS 2 ??+TBS i ??+TBS M .
  • an embodiment of the present invention provides a user equipment, including a processor and a transceiver, which are characterized by:
  • the transceiver is configured to receive a resource allocation indication message sent by the base station, and a modulation and coding mode MCS sent by the base station, where the resource allocation indication message indicates the number of resource units allocated by the base station to the user equipment, N ALLOCATE , where The number of resource units N ALLOCATE is greater than the maximum number of resource units supported by the transport block list N MAX ;
  • the processor is further configured to determine, according to the modulation and coding mode MCS information and the number of resource units N i sent by the base station, a size of a transport block configured by the user equipment.
  • the processor is configured to determine, according to a predefined rule, a quantity of resource units N i , including:
  • the processor determines the M
  • the processor is further based on the determination of the N i M.
  • the determining, by the processor, that the M includes:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the processor determines that the M is further include:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • the determining, by the processor, the number of resource units N i according to the predefined rule includes:
  • the processor determines a corresponding transport block size TBS i temporary number according to the MCS and the resource units N i, wherein said maximum TBS i is not greater than the size of the coding block.
  • the size of the maximum coding block is specifically 6144.
  • the processing is performed according to the modulation and coding mode MCS information sent by the base station
  • the number of resource units N i determining the size of the transport block configured by the user equipment includes:
  • the processor temporary transport block size TBS i N i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N i;
  • the processor determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • an embodiment of the present invention provides a base station, including a processor and a transceiver, which are characterized by:
  • the transceiver is configured to send, by the processor, a resource allocation indication message to the user equipment, where the resource allocation indication message includes a quantity of resource units N ALLOCATE allocated by the processor to the user equipment, where The number of resource units N ALLOCATE is greater than the maximum number of resource units supported by the transport block list N MAX ;
  • the transceiver is further configured to send, by using the scheduling of the processor, modulation coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N ALLOCATE, and a predefined rule, The size of the transport block in which the user device is configured.
  • the transceiver is further configured to send modulation coding mode MCS information to the user equipment, so that the user equipment is configured according to the MCS, the N ALLOCATE And a predefined rule, determining a size of the transport block configured by the user equipment, including:
  • N ALLOCATE N 1 + N 2 + ... + N M .
  • the user equipment determines, according to a predefined rule, the number of resource units N i , including:
  • the user equipment determines the M
  • the user equipment according to the determination of the N i M.
  • the determining, by the user equipment, that the M includes:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the user equipment determines that the M is further Includes:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • the determining, by the user equipment, the number of resource units N i according to the predefined rule includes:
  • the user equipment determines the transport block size TBS i temporary number according to the MCS and the resource units N i, wherein said maximum TBS i is not greater than the size of the coding block.
  • the size of the maximum coding block is specifically 6144.
  • the user equipment is configured according to the modulation and coding mode MCS information sent by the transceiver
  • the number of resource units N ALLOCATE determining the size of the transport block configured by the user equipment includes:
  • the user device to temporarily transport block size TBS i N i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N i;
  • the user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • TBS TBS 1 +TBS 2 ??+TBS i ??+TBS M .
  • the size of the transport block can still be determined based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.
  • FIG. 1 is a flowchart of a method for determining a size of a transport block according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for determining the size of a transport block according to an embodiment of the present invention.
  • the user equipment (English: User Equipment, abbreviation: UE) may be called a terminal (Terminal), a mobile station (English: Mobile Station, abbreviation: MS), and a mobile terminal (Mobile Terminal).
  • the user equipment can communicate with one or more core networks via a radio access network (English: Radio Access Network, RAN), for example, the user equipment can be a mobile phone (or "cellular" phone),
  • RAN Radio Access Network
  • the user equipment can be a mobile phone (or "cellular" phone),
  • the base station may be an evolved base station (English: Evolutional Node B, abbreviated as: eNB or e-NodeB), a macro base station, and a micro base station (also referred to as a "small base station” in an LTE system or a LAA-LTE system. "), the pico base station, the access site (English: Access Point, abbreviation: AP) or the transmission site (English: Transmission Point, abbreviation: TP), etc., the present invention is not limited thereto. However, for convenience of description, the following content will be described by taking a base station and a user equipment as an example.
  • eNB Evolutional Node B
  • AP Access Point
  • TP Transmission Point
  • the service scheduling of the LTE system is implemented by the base station transmitting a control channel, where the control channel can carry scheduling information of the uplink or downlink data data channel, and the scheduling information includes control information such as RA information, MCS, HARQ process number, and the like, and the user equipment
  • the UE performs reception of the downlink data channel or transmission of the uplink data channel according to the scheduling information carried in the control channel.
  • the core is to determine the MCS, resource block to RB pair allocation, and number of layers for the scheduled UE. Specifically, the following data scheduling is used as an example.
  • the base station selects the MCS and the number of layers for the UE based on the channel state information CSI reported by the UE; and then determines the allocation of the RB pair according to the size of the data packet TBS that needs to be transmitted.
  • the UE determines the TBS according to the RB pair allocation, the MCS and the layer number indication in the PDCCH, and then performs operations such as demodulation and decoding. It can be seen that the TBS has a corresponding relationship with the RB pair allocation, the MCS, and the number of layers. This correspondence is predefined, for example, stored in the UE and the base station in the form of a table.
  • the LTE system will continue to evolve toward the direction of adopting more high-frequency points and larger bandwidth, which means that future LTE systems can adopt larger bandwidth scheduling, or take more subframes in consideration of high-frequency point low delay requirements.
  • the scheduling will greatly increase the number of resource units scheduled for one time.
  • the resource unit is similar to the RB pair in the current LTE system, but the number of protected REs may change. Since the number of scheduled resource units is greatly increased, the TBS specified in the current TBS table is not enough, so a larger TBS needs to be designed to adapt to the above requirements.
  • Step 1 Determine CQI and MCS
  • link simulation is performed on various modulation methods (QPSK, 16QAM, 64QAM) and coding rates (1/3, 1/2, 2/3, 3/4, 5/6, etc.) to obtain more a link simulation curve of BLER-to-SNR, each curve representing an embodiment of spectral efficiency;
  • Step 2 Create a TBS form based on MCS and RB pairs assignments
  • the original transmittable number of bits that is, the transport block size TBS, can be determined.
  • the internal interleaver of the LTE Turbo channel encoder is required to satisfy the QPP characteristic to realize the parallel processing capability of the Turbo code, thereby improving the efficiency of the Turbo.
  • the Turbo encoder only receives a limited number of values that satisfy the QPP principle, and specifically meets the values of the QPP interleaver as shown in Table 2.
  • the Ki column is the limited coding block size CBS supported by the Turbo encoder.
  • the maximum CBS supported by the LTE Turbo encoder is 6144. If the TBS is greater than 6144, the TB needs to be divided into multiple CBs to be separately coded, and all TBSs currently supported by LTE support equal-sized CB partitions, and the divided The padding bit is 0.
  • the maximum CBS value is limited to 6144 because, although the CB of the turbo code is longer, the coding gain is larger, but by the 6144 level, the increase of the coding gain is not obvious, and the CBS is continuously increased, which increases the coding complexity.
  • a TBS table it cannot be determined simply based on the MCS and RB pair assignments. Instead, according to the QPP characteristics, a set of values satisfying the QPP interleaver is selected; then the temporary TBS is determined according to the MCS and RB pair allocation, and then a value closest to the temporary TBS is selected from the above set of values as the final TBS. In addition, it is also necessary to consider the segmentation of TB, that is, each CBS of equal size after segmentation must also be in the above numerical set.
  • Step 3 Introduce a new mapping relationship for the case where one codeword is mapped to multiple layers.
  • the above TBS table only supports one layer of transmission. If a code can be transmitted on multiple layers, then the TBS needs to be extended. Since the MCS is determined by the current channel condition, and the number of RB pairs occupied by the layer and the N layer is the same, the extended TBS can check the single layer TBS table by multiplying the number of RB pairs allocated in the PDCCH by N times. .
  • the single-layer TBS table can be checked by 2*N; if N is greater than 110/2, a single layer needs to be established.
  • the TBS mapping relationship to the two layers is as shown in Table 5.
  • the single-layer TBS table can be checked by 3*N; if N is greater than 110/3, then a single layer needs to be established.
  • the TBS mapping relationship to the third layer is as shown in Table 6.
  • the single-layer TBS table can be checked by 4*N; if N is greater than 110/4, then a single layer needs to be established.
  • the TBS mapping relationship to the third layer is as shown in Table 7.
  • the resource unit of the scheduling increases, for example, taking the RB pair as an example, assuming that more than 110 RB pairs are exceeded, then each additional time, it is necessary to repeat at least the above step 2 (assuming the SNR working interval is unchanged, And the number of layers does not increase), the design complexity is increased, and the scalability is poor.
  • the complexity of standards and implementations will increase.
  • the embodiment of the present invention provides a method for determining a transport block size, which is to solve the technical problem that the number of resources scheduled by the base station is too large, and the existing TBS table cannot be supported.
  • the maximum number of resource units supported by the transport block size list is N MAX , N MAX is a positive integer. In the existing LTE system, N MAX is specifically 110.
  • FIG. 1 is a flowchart of a method according to an embodiment of the present invention, and the steps shown in the figure include:
  • Step 101 The user equipment determines, according to the resource allocation indication message sent by the base station, the number of resource units N ALLOCATE allocated by the base station to the user equipment, where the number of resource units N ALLOCATE is greater than the maximum resource unit supported by the transport block list.
  • Quantity N MAX Quantity N MAX ;
  • Step 102 the user receives the modulation and coding mode MCS sent by the base station;
  • Step 103 The user equipment determines, according to the modulation and coding mode MCS information and the number of resource units N i sent by the base station, a size of a transport block configured by the user equipment.
  • the user equipment according to a modulation coding scheme MCS information transmitted from the base station and the number of resource units N i, determining the transport block size of the user equipment is configured comprising:
  • the user equipment information and the resource unit number of the MCS N i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS i according;
  • the user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • TBS TBS 1 +TBS 2 ??+TBS i ??+TBS M .
  • the method for determining, by the user equipment, the number of resource units N i according to the predefined rule may further include:
  • the user equipment determines the M
  • the user equipment determines the N i according to the M.
  • the method for determining, by the user equipment, the M may include:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the user equipment determining that the M further includes:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • K is 4.
  • the size of the transport block can still be determined based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.
  • determining, by the user equipment, the number of resource units N i according to a predefined rule includes:
  • the user equipment determines the transport block size TBS i temporary number according to the MCS and the resource units N i, wherein said maximum TBS i is not greater than the size of the coding block.
  • the size of the maximum coding block is specifically 6144.
  • the problem of the transport block size table corresponding to the larger resource unit can be solved with a smaller storage space, and the trouble of re-deleting the transport block size table is eliminated.
  • the segmentation loss is reduced, so that the number of coding blocks of the dispute is small and the coding gain is high.
  • An embodiment of the present invention provides a method for determining a size of a transport block, which may be performed by a base station to correspond to a method that can be applied to a user equipment according to Embodiment 1 of the present invention.
  • the method provided by the embodiment of the present invention includes the following steps:
  • Step 201 The base station sends a resource allocation indication message to the user equipment, where the resource allocation indication message includes the number of resource units N ALLOCATE allocated by the base station to the user equipment, where the number of resource units N ALLOCATE is greater than the transport block list.
  • the maximum number of resource units supported is N MAX ;
  • Step 202 The base station further sends modulation and coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N ALLOCATE, and a predefined rule, that the user equipment is configured with a transport block. the size of.
  • the base station further sends modulation and coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N ALLOCATE, and a predefined rule.
  • the size of the transport block in which the user equipment is configured includes:
  • N ALLOCATE N 1 + N 2 + ... + N M .
  • the user equipment determines, according to a predefined rule, the number of resource units N i , including:
  • the device determines the user M; the user device based on the determination of the N i M.
  • the user equipment determines that the M includes:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the user equipment determines that the M further includes:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • determining, by the user equipment, the number of resource units N i according to a predefined rule includes:
  • the user equipment determines the transport block size TBS i temporary number according to the MCS and the resource units N i, wherein said maximum TBS i is not greater than the size of the coding block.
  • the size of the maximum coding block is specifically 6144.
  • the user equipment according to a modulation coding scheme MCS information transmitted from the base station and the number of resource units N ALLOCATE, to determine the transport block user equipment is configured to include the size of :
  • the user equipment information and the resource unit number of the MCS N i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS i according;
  • the user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • TBS TBS 1 +TBS 2 ??+TBS i ??+TBS M .
  • the size of the transport block can still be determined based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.
  • the embodiment of the invention provides a user equipment, which can be used to implement a method for determining the size of a transport block proposed in Embodiment 1 of the present invention.
  • the user equipment includes a processor and a transceiver, specifically:
  • Modulation and coding scheme MCS for the transceiver receives the base station transmits resource allocation and indication message sent by the base station, wherein said indication message indicating the resource allocation for the user equipment by the base station the number of assigned resource units N ALLOCATE, wherein The number of resource units N ALLOCATE is greater than the maximum number of resource units supported by the transport block list N MAX ;
  • the processor is configured to determine a quantity of resource units N i according to a predefined rule, where
  • N ALLOCATE N 1 + N 2 + whil + N M ;
  • the processor is further configured to determine, according to the modulation and coding mode MCS information and the number of resource units N i sent by the base station, a size of a transport block configured by the user equipment.
  • the processor is configured to determine, according to a predefined rule, a quantity of resource units N i , including:
  • the processor determines the M
  • the processor is further based on the determination of the N i M.
  • the processor determines that the M includes:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the determining that the M further includes:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • the determining, by the processor, the number of resource units N i according to a predefined rule includes:
  • the processor determines a corresponding transport block size TBS i temporary number according to the MCS and the resource units N i, wherein said maximum TBS i is not greater than the size of the coding block.
  • the size of the maximum coding block is specifically 6144.
  • the processing, according to the modulation and coding mode MCS information sent by the base station, and the number of resource units N i , determining the size of the transport block configured by the user equipment includes:
  • the processor and the resource unit number information of the MCS N i determines the number of resource elements corresponding to Ni temporary transport block sizes TBS i according;
  • the processor determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • TBS TBS 1 +TBS 2 ??+TBS i ??+TBS M .
  • the user equipment may still determine the size of the transport block based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.
  • the embodiment of the invention provides a base station, which can be used to implement a method for determining the size of a transport block proposed in Embodiment 2 of the present invention.
  • the base station includes a processor and a transceiver, more specifically:
  • the transceiver is configured to send, by the processor, a resource allocation indication message to the user equipment, where the resource allocation indication message includes a quantity of resource units N ALLOCATE allocated by the processor to the user equipment, where The number of resource units N ALLOCATE is greater than the maximum number of resource units supported by the transport block list N MAX ;
  • the transceiver is further configured to send, by using the scheduling of the processor, modulation coding mode MCS information to the user equipment, so that the user equipment determines, according to the MCS, the N ALLOCATE, and a predefined rule, The size of the transport block in which the user device is configured.
  • the transceiver is further configured to send modulation and coding mode MCS information to the user equipment, so that the user equipment is configured according to the MCS, the N ALLOCATE, and the predefined
  • the rule determines the size of the transport block in which the user equipment is configured, including:
  • N ALLOCATE N 1 + N 2 + ... + N M .
  • the user equipment determines, according to a predefined rule, the number of resource units N i , including:
  • the user equipment determines the M; the user equipment determines the Ni according to the M.
  • the user equipment determines that the M includes:
  • the user equipment determines the M according to the N ALLOCATE and the N MAX , wherein the M is not less than a value rounded up by N ALLOCATE /N MAX .
  • the determining, by the user equipment, that the M further includes:
  • the M is not greater than the maximum number of layers K supported by the transport block size list, wherein the K is a positive integer.
  • the determining, by the user equipment, the number of resource units N i according to the predefined rule includes: determining, by the user equipment, the corresponding temporary according to the MCS and the number of resource units N i A transport block size TBS i , wherein the TBS i is not greater than the size of the largest coded block.
  • the size of the maximum coding block is specifically 6144.
  • the modulation and coding scheme to the user equipment transceiver according to the MCS information and the number of resource units N ALLOCATE, to determine the transport block size of the user equipment is configured include:
  • the user device to temporarily transport block size TBS i N i the number of resource elements corresponding to the number of resource units and the information the MCS determined according to N i;
  • the user equipment determines a transport block size TBS, wherein the transport block size TBS satisfies:
  • TBS TBS 1 +TBS 2 ??+TBS i ??+TBS M .
  • the user equipment can still determine the size of the transport block based on the existing transport block size table. Not only can the problem of the transport block size table corresponding to the larger resource unit be solved with a smaller storage space, but also the trouble of reformulating the transport block size table is eliminated.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another The system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a USB flash drive, a mobile hard disk, a read-only memory (English: Read-Only Memory, abbreviation: ROM), a random access memory (English: Random Access Memory, abbreviation: RAM), a magnetic disk or an optical disk, and the like.
  • a USB flash drive a mobile hard disk
  • a read-only memory English: Read-Only Memory, abbreviation: ROM
  • a random access memory English: Random Access Memory, abbreviation: RAM
  • magnetic disk or an optical disk and the like.

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

Abstract

La présente invention porte, dans un mode de réalisation, sur un procédé de détermination de taille de blocs de transport permettant l'utilisation de la table de taille de blocs de transport existante pour déterminer la taille des blocs de transport lorsqu'une grande quantité d'unités de ressource sont attribuées. Le procédé comprend les étapes suivantes : un équipement utilisateur détermine le nombre d'unités de ressource (NALLOUER) allouées à l'équipement utilisateur par une station de base en fonction d'un message d'indication d'allocation de ressources envoyé par la station de base, le nombre d'unités de ressource (NALLOUER) étant plus grand que le nombre maximum d'unités de ressource (NMAX) supporté par une table de blocs de transport ; un utilisateur reçoit un schéma de modulation et de codage (MCS pour Modulation and Coding Scheme) envoyé par la station de base ; l'équipement utilisateur détermine le nombre d'unités de ressource (Ni) selon une règle prédéfinie, où i = 1, 2, … M, M est un nombre entier supérieur ou égal à 2 et Ni satisfait Ni ≤ NMAX et satisfait également : NALLOUER = N1 + N2 + ……+ NM ; l'équipement utilisateur détermine la taille des blocs de transport alloués en fonction des informations de schéma MCS envoyées par la station de base et le nombre d'unités de ressource (Ni).
PCT/CN2015/092101 2015-10-16 2015-10-16 Procédé de détermination de taille de blocs de transport, équipement d'utilisateur et station de base WO2017063193A1 (fr)

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PCT/CN2015/092101 WO2017063193A1 (fr) 2015-10-16 2015-10-16 Procédé de détermination de taille de blocs de transport, équipement d'utilisateur et station de base

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