WO2011160292A1 - 一种缓冲区数据量等级的上报方法和系统 - Google Patents

一种缓冲区数据量等级的上报方法和系统 Download PDF

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Publication number
WO2011160292A1
WO2011160292A1 PCT/CN2010/074276 CN2010074276W WO2011160292A1 WO 2011160292 A1 WO2011160292 A1 WO 2011160292A1 CN 2010074276 W CN2010074276 W CN 2010074276W WO 2011160292 A1 WO2011160292 A1 WO 2011160292A1
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Prior art keywords
buffer data
level
data amount
buffer
amount
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PCT/CN2010/074276
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English (en)
French (fr)
Inventor
施小娟
黄亚达
张健
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中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US13/637,855 priority Critical patent/US8953459B2/en
Priority to CN201080059634.4A priority patent/CN102742345B/zh
Priority to PCT/CN2010/074276 priority patent/WO2011160292A1/zh
Priority to EP10853435.5A priority patent/EP2566274B1/en
Priority to RU2012147564/07A priority patent/RU2539231C2/ru
Priority to JP2013515659A priority patent/JP5575984B2/ja
Publication of WO2011160292A1 publication Critical patent/WO2011160292A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method and system for reporting a buffer data level in a wireless network. Background technique
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • LTE Long Term Evolution
  • PUSCH Physical Uplink Shared Channel
  • An uplink radio resource is allocated to each user terminal (UE, User Equipment) by an evolved base station (eNB, Evolved NodeB).
  • eNB evolved base station
  • the access technology used by E-UTRAN is Orthogonal Frequency Division Multiplexing (OFDM) technology.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the RRC (Radio Resource Control) layer of the LTE system sends an RRC message to implement many operations such as establishing an RRC layer link, configuring system parameters, and transmitting UE capability parameters between the UE and the eNB.
  • the downlink RRC message is sent on a Physical Downlink Shared Channel (PDSCH).
  • PDSCH Physical Downlink Shared Channel
  • PBCH Physical Broadcast Channel
  • LTE Long Term Evolution
  • the control message of the resource allocation by the PUSCH is sent by the eNB to the UE.
  • the resource allocation control message is also referred to as an uplink grant (UL Grant, UpLink Grant), and the UL Grant is in the physical downlink control channel (PDCCH, Physical Downlink Control). Send on Channel).
  • the LTE system requires the UE to report the status of the data stored in the buffer.
  • the report is reported to the eNB in the form of a Buffer Status Report (BSR).
  • BSR Buffer Status Report
  • the logical channel (LCH, Logical Channel) of the UE is divided into four logical channel groups (LCGs, Logical Channel Groups) according to the priority level.
  • the BSR reports all the group numbers of the LCGs and all the groups in the characterization group.
  • the buffer data level reported in the BSR report is obtained by the UE according to the amount of data to be transmitted on all LCHs in the actual LCG group by querying a predefined table.
  • the buffer data level of each LCG is 6 bits. (bit) indicates that 64 buffer data level levels can be characterized.
  • Table 1 BSR table 1).
  • Index Buffer Size ( BS ) value Index Buffer Size ( BS ) value [bytes]
  • Buffer Size (BS) value indicates the amount of buffer data corresponding to the buffer data level; when the UE reports the BSR, it is based on the data to be transmitted on all LCHs in the actual LCG group. Check the table and report the corresponding buffer data level.
  • the buffer data level of each LCG reported in the BSR report is applicable to the LTE single carrier system.
  • LTE-Advanced advanced LTE
  • LTE-Advanced is the 3GPP (the 3rd Generation Partner Project) organization to meet the requirements of the International Telecommunication Union (ITU, International Telecommunication Union).
  • ITU International Telecommunication Union
  • the standard LTE-Advanced system introduced is an evolved version based on the LTE release 8 system. It introduces many new technologies to meet the basic needs of IMT-Advanced.
  • One of the most important technologies is carrier aggregation.
  • Frequency Division Duplex supports up to 80 MHz, time division duplex (TDD, Time Division Duplex).
  • TDD Time Division Duplex
  • the maximum support is 100MHz, so the amount of data that the UE can transmit is also several times larger than that of LTE.
  • MIMO Multiple-Input Multiple-Output
  • uplink bandwidth up to 5 times of LTE bandwidth
  • uplink dual-stream MIMO tilt relative to LTE single stream
  • the predefined BSR table in the LTE system can only represent the maximum 150K data in fine-grained manner, and all other services larger than 150K belong to the same BSR level (level 63). After the data traffic of the LTE-A system is improved, If the BSR table predefined by the LTE system is still used, the high-throughput LTE-A service will make the network unable to distinguish the UE from the 150K to 1500K buffer state, resulting in an inefficient allocation of resources. Summary of the invention
  • the main object of the present invention is to provide a method and system for reporting the buffer data level to achieve a more efficient and rational allocation of resources.
  • the present invention provides a method for reporting a buffer data level, the method comprising: presetting two buffer data amount level tables, that is, a first table and a second table; the first table is long term evolution (level table buffer data amount LTE) system, the second table to the first table on the basis of the buffer by increasing the maximum amount of data to B- a, to increase the minimum buffer data amount; or by increasing the maximum amount of data buffers to buffer data amount increase ⁇ to the level N TE - ⁇ obtained by the design;
  • LTE level table buffer data amount LTE
  • the user terminal When reporting the buffer status report (BSR), the user terminal (UE) selects the preset first table or the second table to query to obtain a buffer data amount level;
  • the UE sends the queried buffer data volume level to the base station through the BSR.
  • the method further includes:
  • the method further includes:
  • the method further includes:
  • the minimum buffer data amount ⁇ LTE using ⁇ max - 4, and " ⁇ determine the design function of the second table, and the preset second table based on the determined design function.
  • the method further includes:
  • the UE When reporting the BSR, the UE selects the preset table according to the amount of data to be transmitted on all logical channels (LCH) in the logical channel group (LCG), or according to an agreement of the UE and the base station or an indication of the base station. Or the second table is queried to get the buffer data level.
  • LCH logical channels
  • LCG logical channel group
  • the present invention also provides a reporting system for a buffer level, the system comprising: a table preset module, a UE, and a base station, where
  • the table preset module is configured to preset two buffer data amount level tables, that is, a first table and a second table; the first table is a buffer data amount level table used by the LTE system, The second table is to increase the minimum buffer data amount by increasing the maximum buffer data amount to ⁇ on the basis of the first table; or increase the buffer data by increasing the maximum buffer data amount to ⁇ __ ⁇ Quantity grade to N TE _ A design;
  • the UE is configured to: when the BSR is reported, select the preset first table or the second table to obtain a buffer data amount level, and send the buffer data volume level obtained by the query to the BSR through the BSR.
  • Base station when the BSR is reported, select the preset first table or the second table to obtain a buffer data amount level, and send the buffer data volume level obtained by the query to the BSR through the BSR.
  • the base station is configured to obtain a buffer data amount level from a BSR reported by the UE.
  • the table preset module is further configured to: after increasing the maximum buffer data amount to ⁇ on the basis of the first table, increasing the minimum buffer data amount to ⁇ ⁇ , setting the value of N TE _ A to be less than or equal to The value N of the buffer data amount level used by the LTE system, according to the
  • the table preset module is further configured to: after increasing the maximum buffer data amount to the ⁇ _ A and increasing the buffer data amount level to N TE _ A , the minimum buffer data amount used according to LTE B ⁇ , max _ .
  • N TE _ A determines a design function of the second table, and presets a second table according to the determined design function.
  • the UE is further configured to: when reporting the BSR, select the preset first table or the second table according to the amount of data to be transmitted on all LCHs in the LCG, or according to an agreement of the UE and the base station or an indication of the base station.
  • the query is made to get the buffer data level.
  • the present invention provides a method and system for reporting a buffer data level.
  • the base station allocates an uplink grant according to the buffer data level reported by the UE in the buffer status report, which can make the uplink authorization more It is reasonable and accurate, which effectively improves the scheduling efficiency in carrier aggregation (ie multi-carrier system) and ensures the rational allocation of resources.
  • FIG. 1 is a flowchart of a method for reporting a buffer data amount level according to the present invention. detailed description
  • each buffer level is designed according to an exponential distribution function.
  • the specific design functions are:
  • order. 0
  • the amount of data (referred to as the minimum buffer data amount), lOBytes in LTE; B represents the maximum buffer data amount, 150,000 bytes in LTE; N represents the maximum buffer data size level, 63 in LTE, buffer data
  • the level 63 is used to uniformly express that the buffer data amount is greater than 150,000 Bytes, that is, for the case where the buffer data amount is
  • the relative level error of the obtained buffer data level table is about 15%, and the relative level error is comprehensively considered by the system.
  • the error level selected after the scheduling efficiency and the signaling overhead reported by the BSR.
  • the calculation formula of the above relative level error is:
  • the uplink rate of the UE is greatly improved compared to the LTE system.
  • the specific multiple is determined by the maximum number of uplink polymerizable carriers and the uplink MIMO order used.
  • LTE- The maximum uplink rate of the A system which is the maximum of the LTE-A system. Buffer data amount ⁇
  • N_CC the maximum number of uplink polymerizable carriers
  • the number of uplink MIMO orders used.
  • N_CC the maximum number of uplink polymerizable carriers
  • the number of uplink MIMO orders used.
  • the number of uplink aggregatable carriers or the number of uplink hops supported by -A is increased, and all methods in the embodiments of the present invention are equally applicable.
  • the high-throughput LTE-A service will make the network unable to distinguish the UE from the 150K to 1500K buffer state, resulting in inefficient resources.
  • One disadvantage of this processing is that the relative level error of the new buffer data volume level table will be improved by about 3%, which reduces the scheduling efficiency.
  • the UE When the LTE-A UE works only on a single carrier in the LTE-A base station, the UE also According to the new buffer data level table, the BSR is reported to the table, which also reduces the scheduling efficiency to a certain extent. As a result, the resources cannot be allocated efficiently and efficiently, so that the scheduling error of the LTE-A UE working on a single carrier is higher than that of the LTE UE.
  • the present invention provides a method for reporting the buffer data level in the LTE-A system. As shown in FIG. 1, the method mainly includes the following steps:
  • Step 101 preset two buffer data amount level tables, that is, a first table and a second table; the first table is a buffer data amount level table used by the LTE system, and the second table is a basis of the first table.
  • Step 102 When reporting the BSR, the UE selects a preset first table or a second table according to the size of the data to be transmitted on all LCHs in the LCG to obtain a buffer data amount level. Alternatively, according to the agreement between the UE and the base station or the indication of the base station, the preset first table or the second table is selected for querying to obtain a buffer data amount level.
  • Step 103 The UE sends the buffered data volume level obtained by the query to the base station by using the BSR.
  • the system pre-defines two buffer data volume level tables, a first table (BSR table 1) and a second table (BSR table2).
  • the first table is as shown in Table 1 above, and is a buffer data amount level table used by the LTE system; the second table is defined based on Table 1, and there are two predefined schemes: Scheme 1 is improved on the basis of Table 1.
  • the N TE _ the value of a is set to the amount of buffer data is less than or equal to the level N LTE system used (i.e. LTE-a buffer data amount of the maximum level N LTE. a ⁇ 63) "relative error level of the program and Table 1 is the same, or is reduced compared to Table 1.
  • a second predefined parameters can preclude takes the following two ways:
  • B k _ indicates the upper limit value of the buffer data amount range indicated by the buffer data amount level when the buffer data amount level is fc max in the expanded table 1 .
  • Solution 2 Increase the maximum buffer data amount based on Table 1. (B Increase the buffer data volume level (N- A The relative level error of this scheme is the same as Table 1.
  • a specific design function of the second table is determined according to ⁇ B max _ A , N LTE _ A , and the second table is designed according to the determined specific design function.
  • the buffer data level of the first table or the second table is selected for reporting.
  • the second table is predefined according to the second mode in the first embodiment.
  • Scheme A Determine the specific design function of the second table by _ 4 and crumbl ⁇ .
  • g k represents the buffer data magnitude level k in the second table , the upper limit of the buffer data amount range indicated by the buffer data level level; B k+kmax .
  • NLiE A+1 indicates that the buffer data amount level in the expanded first table is k+fc Max -N TE _ A +l, the upper limit of the buffer data amount range represented by this buffer data level.
  • Scenario B Determine the specific design function of the second table by and ⁇ .
  • the buffer data amount range is the left open right closed interval with the lower limit value being ⁇ and the upper limit value; when the buffer data amount level is N - A , the buffer data amount is greater than B N Y.
  • the buffer data level in the second table obtained by the expanded table 1 is intercepted according to the method of the preferred embodiment, and the buffer data amount is represented.
  • A 1595876
  • the indicated buffer data size range is the lower limit value
  • the upper limit The value is the left open right closed interval of B K+I ; when the buffer data level is N - A , the buffer data amount is greater than BN LTE _ A -I.
  • the buffer data level in the second table obtained by the expanded table 1 and the buffer data amount represented by the expanded table 1 according to the method of the preferred embodiment are shown in Table 3.
  • the table buffer is obtained according to the first table or the second table, and the buffer obtained by the table lookup is reported.
  • the area data level is given to the base station. If ⁇ ⁇ ⁇ , the table is searched according to the second table, and the buffer data level obtained by the table lookup is reported to the base station; or if X , according to the first table lookup table, report the buffer data level obtained by the lookup table to the base station, if x ⁇ , then according to the second table lookup table, report the buffer data amount level obtained by the lookup table to the base station .
  • the UE notifies the base station in the BSR that the UE queries the first table or the second table.
  • the base station may query the first table or the second table according to the buffer data volume level reported by the UE according to the information of the first table or the second table that is notified by the UE, and the UE may be informed by the first table or the second table.
  • the amount of buffer data is not limited to the buffer data volume level reported by the UE according to the information of the first table or the second table that is notified by the UE.
  • the UE when the UE reports the buffer status report BSR, the UE selects the first table or the second table lookup table according to the agreement with the base station or according to the indication of the base station, and reports the buffer data amount level obtained by the table lookup to the base station; After receiving the BSR reported by the UE, according to the agreement with the UE or according to the instruction previously sent to the UE, the first table or the second table is queried according to the buffer data amount level reported by the UE, and the buffer data of the UE can be obtained. the amount.
  • the specific UE and base station agreement is that When the uplink carrier allocated by the base station to the UE (the uplink carrier is in the working state) exceeds one, the second table lookup table is selected; otherwise, when the uplink carrier allocated by the base station to the UE (the uplink carrier is in the working state) is only one, Select the first form to look up the table. Specifically, the UE selects the first table or the second table lookup table according to the indication of the base station, and refers to the indication that the UE sends to the UE according to the base station. If the base station instructs the UE to look up the table according to the first table, the UE searches the table according to the first table. If the base station instructs the UE to look up the table according to the second table, the UE looks up the table according to the second table.
  • the relative level error of the second table is equal to the relative level error of the first table, which is advantageous for implementing efficient uplink scheduling in the multi-carrier system; on the other hand, when ⁇ is taken 63
  • the UE can continue to use 6 bits to indicate the buffer data level, so that the format of the BSR report does not need to be modified, which ensures good backward compatibility and simple protocol style.
  • the second table is predefined according to the manner in the first scheme.
  • the method described in the first mode of the first method pre-defines the table to ensure that the relative level error of the second table is equal to the relative level error of the first table, and at the same time, to ensure good backward compatibility and a simple protocol.
  • Style, N T TP _ A takes 63.
  • the specific design functions of the second table are determined by B mi _ A , B__ A , N T TP _ A as:
  • a — 1 , k 1,2,... N r ( 6 )
  • the buffer data level of the second table obtained by the method of the preferred embodiment of the preferred embodiment and the amount of buffer data represented by it are shown in Table 5.
  • the buffer data amount range indicated is the left open right closed interval with the lower limit value B k and the upper limit value B k+1
  • the buffer data amount is greater than B N . chorus.
  • Table 6 all the buffers of the second table obtained by the method of the preferred embodiment 2 are given. The amount of data in the area and the amount of buffer data it represents.
  • the table is checked according to the first table or the second table, and the table is reported.
  • the obtained buffer data level is given to the base station. If ⁇ ⁇ ⁇ , the table is searched according to the second table, and the buffer data level obtained by the lookup table is reported to the base station; or, if X , according to the first table lookup table, report the buffer data level obtained by the lookup table to the base station, if x ⁇ , then according to the second table lookup table, report the buffer data amount level obtained by the lookup table to the base station .
  • the UE notifies the base station UE whether the first table or the second table is queried in the reported BSR.
  • the base station may query the first table or the second table according to the buffer data volume level reported by the UE according to the information of the first table or the second table that is notified by the UE, and the UE may be informed by the first table or the second table.
  • the amount of buffer data is not limited to the buffer data volume level reported by the UE.
  • the UE when the UE reports the buffer status report BSR, the UE selects the first table or the second table lookup table according to the agreement with the base station or according to the indication of the base station, and reports the buffer data amount level obtained by the table lookup to the base station, the base station.
  • the first table or the second table After receiving the BSR reported by the UE, according to the agreement with the UE or according to the instruction previously sent to the UE, the first table or the second table is queried according to the buffer data amount level reported by the UE, and the buffer data of the UE can be obtained. the amount.
  • the specific UE and the base station are in agreement that when the uplink carrier allocated by the base station to the UE (the uplink carrier is in the working state) exceeds one, the second table lookup table is selected; otherwise, the uplink carrier allocated by the base station to the UE (the uplink carrier) When only one is in working state, select the first form to look up the table. Specifically, the UE selects the first table or the second table lookup table according to the indication of the base station, and refers to the indication that the UE sends to the UE according to the base station. If the base station instructs the UE to look up the table according to the first table, the UE searches the table according to the first table. If the base station instructs the UE to look up the table according to the first table, the UE looks up the table according to the first table.
  • the relative level error of the second table is equal to the relative level error of the first table, which is advantageous for implementing efficient uplink scheduling in the multi-carrier system; on the other hand, when ⁇ is taken 63
  • the UE can continue to use 6 bits to indicate the buffer data level, so that the format of the BSR report does not need to be modified, which ensures good backward compatibility and simple protocol style.
  • the second table is predefined according to the manner in the first scheme.
  • the method described in the first manner of the first method is used to predefine the second table,
  • N TE _ A determines that the specific design function of the second table is the formula (6-1).
  • fi mn A g3 ⁇ 4 - toMel ( 62)
  • ⁇ g3 ⁇ 4 - toMel (61) 10398, i.e., taking the maximum error in the first table
  • B max- A A 1500000 ; ⁇ .
  • the table is checked according to the first table, and the buffer data level obtained by the table lookup is reported.
  • the base station if ⁇ ⁇ ⁇ , then look up the table according to the second table, and report the buffer data level obtained by the lookup table to the base station; or, if X Then, according to the first table lookup table, the buffer data level obtained by the table lookup is reported to the base station. If > ⁇ , the table is searched according to the second table, and the buffer data level obtained by the lookup table is reported to the base station.
  • the UE notifies the base station in the foregoing BSR whether the UE queries the first table or the second table, and after receiving the BSR reported by the UE, the base station according to the UE The information of the first table or the second table of the query is notified, and the first table or the second table is queried according to the buffer data amount level reported by the UE, and the buffer data amount of the UE is obtained.
  • the UE when the UE reports the buffer status report BSR, the UE selects the first table or the second table lookup table according to the agreement with the base station or according to the indication of the base station, and reports the buffer data amount level obtained by the table lookup to the base station, the base station.
  • the first table or the second table After receiving the BSR reported by the UE, according to the agreement with the UE or according to the instruction previously sent to the UE, the first table or the second table is queried according to the buffer data amount level reported by the UE, and the buffer data of the UE is obtained. the amount.
  • the agreement between the UE and the base station is: when the uplink carrier allocated by the base station to the UE (the uplink carrier is in the working state) exceeds one, the second table lookup table is selected; otherwise, the uplink carrier allocated by the base station to the UE (the uplink) When the carrier is in working state) is only one, select the first table to look up the table.
  • the UE selects the first table or the second table lookup table according to the indication of the base station, and refers to the indication that the UE sends to the UE according to the base station. If the base station instructs the UE to look up the table according to the first table, the UE searches the table according to the first table. If the base station instructs the UE to look up the table according to the second table, the UE looks up the table according to the second table.
  • the relative level error of the second table is smaller than the relative level error of the table 1, which is advantageous for realizing efficient uplink scheduling in the multi-carrier system; on the other hand, when ⁇ is taken 63
  • the UE can continue to use 6 bits to indicate the buffer data level, so that the format of the BSR report does not need to be modified, which ensures good backward compatibility and simple protocol style.
  • the relative level error of the second table is smaller than the relative level error of the first table, and the resource allocation efficiency can be more effectively improved.
  • the implementation is because the relative level error of the first table is an acceptable relative level according to the verification. error, so the present embodiment, the first table holding a second table with the same relative error level, i.e.
  • the multi-carrier system can be secured
  • the preferred embodiment does not specifically describe the content of the table after the reduction of N TE _ A.
  • the second table is predefined according to the manner in the first scheme.
  • the method described in the first manner of the first method is used to predefine the second table, ⁇ ⁇ , B_ A , N TE _ A determine the specific design function of the second table as:
  • the UE When the UE reports the buffer status report, according to the size X of the data to be transmitted on all the LCHs in the actual LCG group, if ⁇ ⁇ ⁇ , the table is searched according to the first table, and the buffer data level obtained by the table lookup is reported to the base station. If ⁇ ⁇ ⁇ , look up the table according to the second table, and report the buffer data level obtained by the lookup table to the base station. The UE notifies the base station in the reported BSR whether the UE queries the first table or the second table.
  • the base station may query the first table or the second table according to the buffer data amount level reported by the UE according to the information of the first table or the second table that is notified by the UE, and the UE may be informed by the first table or the second table.
  • the amount of buffer data on the one hand, the relative level error of the second table is smaller than the relative level error of the first table, which is advantageous for realizing efficient uplink scheduling in the multi-carrier system; on the other hand, when ⁇ 63
  • the UE can continue to use 6 bits to indicate the buffer data level, so that the format of the BSR report does not need to be modified, ensuring good backward compatibility and a simple protocol style.
  • the relative level error of the second table is smaller than the relative level error of the first table, and the resource allocation efficiency can be improved more effectively.
  • the implementation is because the relative level error of the first table is an acceptable relative according to the verification.
  • the level error so in this embodiment, the second table and the first table have the same relative level error, that is, ⁇ ⁇ and ⁇ _ ⁇ maintain the above values, and the value of N TE _ A can be guaranteed.
  • the effectiveness of the resource scheduling in the multi-carrier system the preferred embodiment does not specifically describe the content of the table after the reduction of N TE _ A.
  • the second table is predefined according to the second scheme.
  • the second table increases the maximum buffer data amount based on the first table and increases the buffer data level. According to max _ A , N LTE . A determine the specific design function of the second table is:
  • the method obtains the level of all buffer data levels of the second table and the amount of buffer data it represents.
  • the relative level error of the second table is equal to the relative level error of the first table, and the buffer data amount from 10Obytes to 1500Kbytes can be characterized by a uniform relative level error, which is advantageous for implementing a multi-carrier system. Efficient uplink scheduling.
  • the UE When the UE reports the buffer status report, according to the size X of the data to be transmitted on all the LCHs in the actual LCG group, if ⁇ ⁇ ⁇ , the table is searched according to the first table, and the buffer data level obtained by the table lookup is reported to the base station. If ⁇ ⁇ ⁇ , look up the table according to the second table, and report the buffer data level obtained by the lookup table to the base station. The UE notifies the base station UE whether the first table or the second table is queried in the reported BSR.
  • the base station may query the first table or the second table according to the buffer data amount level reported by the UE according to the information of the first table or the second table that is notified by the UE, and the UE may be informed by the first table or the second table.
  • the amount of buffer data may be provided.
  • the LTE UE accessing the LTE-A system continues to query the first form for reporting the BSR.
  • the present invention further provides a reporting system for a buffer data level, comprising: a table preset module, a UE, and a base station.
  • the table preset module is configured to preset two buffer data volume level tables, that is, a first table and a second table; the first table is a buffer data volume level table used by the LTE system, and the second table is On the basis of the first table, increase the maximum buffer data amount to ⁇ _ ⁇ and increase the minimum buffer data amount to B ⁇ _ A ; or by increasing the maximum buffer data amount to ⁇ to increase the buffer data level to N diligent E _ A.
  • the UE is used to report the BSR, according to all the LCHs in the LCG to be transmitted.
  • the query obtains the buffer data volume level; the buffer data volume level obtained by the query is sent to the base station through the BSR.
  • the base station is configured to obtain the buffer data volume level from the BSR reported by the UE.
  • the table preset module is further configured to: after increasing the maximum buffer data amount to ⁇ on the basis of the first table, increasing the minimum buffer data amount to ⁇ ⁇ , setting the value of N TE _ A to be less than or equal to the LTE system The value N of the buffer data level used, according to ⁇ , B max _ A ⁇ N LTE .
  • A determines the design function of the second table, and presets the second table according to the determined design function; or,
  • the first table is based on increasing the maximum buffer data amount to ⁇ to increase the minimum buffer data amount to.
  • the number of buffer data levels of the first table is expanded to fc max , where B k represents the minimum value of B k ⁇ ⁇ _ A , and B k represents the buffer data level in the expanded first table.
  • B k the upper limit of the buffer data amount range indicated by the buffer data amount level
  • the area data level, the total buffer data level of the second table is N TE _ A
  • the value of N TE _ A is set to be less than or equal to the value of the buffer data level used by the LTE system.
  • the table preset module may also be used to increase the maximum buffer data amount to ⁇ to increase the buffer data amount level to N TE _ A , according to the minimum buffer data amount used by LTE B ⁇ .
  • max _ N TE — A determines the design function of the second table and presets the second table based on the determined design function.
  • the base station allocates an uplink grant according to the buffer data level reported by the UE in the BSR, which can make the uplink grant more reasonable and accurate, thereby effectively Improve scheduling efficiency in carrier aggregation (ie, multi-carrier system) and ensure reasonable allocation of resources.
  • carrier aggregation ie, multi-carrier system

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Abstract

本发明公开了一种缓冲区数据量等级的上报方法和系统,方法包括:预设两个缓冲区数据量等级表格,即第一表格和第二表格;第一表格为长期演进(LTE)系统使用的缓冲区数据量等级表格,第二表格为在第一表格的基础上通过提高最大缓冲区数据量至A-maxB、提高最小缓冲区数据量至A-minB;或者通过提高最大缓冲区数据量至A-maxB、增加缓冲区数据量等级至A-LTEN设计所得;用户终端(UE)在上报缓冲区状态报告(BSR)时,选择预设的第一表格或第二表格进行查询得到缓冲区数据量等级,并通过BSR发送给基站。通过本发明的方法和系统,能有效提高载波聚合中的调度效率,保证资源合理分配。

Description

一种緩冲区数据量等级的上报方法和系统 技术领域
本发明涉及无线通信技术领域, 尤其涉及一种无线网络中的緩冲区数 据量等级的上报方法和系统。 背景技术
第三代移动通信长期演进 ( LTE, Long Term Evolution ) 系统的演进型 通用陆地无线接入网(E-UTRAN, Evolved Universal Terrestrial Radio Access Network )中,上行链路的数据通过物理上行链路共享信道( PUSCH, Physical Uplink Shared Channel )传输。 由演进型基站( eNB, Evolved NodeB )分配 上行链路无线资源给每个用户终端 (UE, User Equipment )。 E-UTRAN釆 用的接入技术是正交频分复用 (OFDM , Orthogonal Frequency Division Multiplexing )技术, E-UTRAN系统的无线资源管理和第二代移动通信系统 相比, 具有大带宽、 多时间进程的特点, 其无线资源是以时间和频率两维 出现的, 能够承载的用户数量大大增加。
LTE 系统的无线资源控制 (RRC, Radio Resource Control )层会发送 RRC消息来实现 UE和 eNB之间建立 RRC层链接、 配置系统参数和传递 UE能力参数等许多操作。 其中, 下行链路的 RRC消息在物理下行链路共 享信道(PDSCH, Physical Downlink shared Channel )上发送。 与系统相关 的一些公共参数, 例如: 小区频点和小区系统带宽等信息, 则是由 eNB在 广播消息里向所有小区内 UE发送, 广播消息是在物理广播信道(PBCH, Physical Broadcast Channel )上发送的。
为了能给每个 UE按照自己的需求分配资源和提供服务,以在上行传输 中实现较好的复用性能, 同时也为了充分灵活高效的利用系统带宽, LTE PUSCH进行资源分配的控制消息是由 eNB发送给 UE的 ,该资源分配控制 消息又称为上行链路授权(UL Grant, UpLink Grant ), UL Grant在物理下 行链路控制信道(PDCCH, Physical Downlink Control Channel )上发送。
为了保证给每个 UE合理的分配无线资源, LTE系统要求 UE报告自己 緩冲区内存储的数据量状态,该报告以緩冲区状态报告(BSR, Buffer Status Report )的形式上报给 eNB。在 LTE系统中, UE的逻辑信道( LCH, Logical Channel )按照优先级的高低,被分成 4个逻辑信道组( LCG, Logical Channel Group ), BSR报告的就是各个 LCG的组序号和表征组内所有 LCH上待传 输的数据量大小的緩冲区数据量等级。 BSR报告中上报的緩冲区数据量等 级是 UE根据实际 LCG组内所有 LCH上待传输的数据量,通过查询预定义 的表格获得的, 各个 LCG的緩冲区数据量等级均用 6个比特(bit )表示, 可以表征 64个緩冲区数据量等级, LTE系统预定义的緩冲区数据量等级表 的具体内容如表 1 ( BSR table 1 )所示,
Index Buffer Size ( BS ) value Index Buffer Size ( BS ) value [bytes]
[bytes]
0 BS = 0 32 1132 < BS <= 1326
1 0 < BS <= 10 33 1326 < BS <= 1552
2 10 < BS <= 12 34 1552 < BS <= 1817
3 12 < BS <= 14 35 1817 < BS <= 2127
4 14 < BS <= 17 36 2127 < BS <= 2490
5 17 < BS <= 19 37 2490 < BS <= 2915
6 19 < BS <= 22 38 2915 < BS <= 3413
7 22 < BS <= 26 39 3413 < BS <= 3995
8 26 < BS <= 31 40 3995 < BS <= 4677
9 31 < BS <= 36 41 4677 < BS <= 5476 10 36 < BS <= 42 42 5476 < BS <= 6411
11 42 < BS <= 49 43 6411 < BS <= 7505
12 49 < BS <= 57 44 7505 < BS <= 8787
13 57 < BS <= 67 45 8787 < BS <= 10287
14 67 < BS <= 78 46 10287 < BS <= 12043
15 78 < BS <= 91 47 12043 < BS <= 14099
16 91 < BS <= 107 48 14099 < BS <= 16507
17 107 < BS <= 125 49 16507 < BS <= 19325
18 125 < BS <= 146 50 19325 < BS <= 22624
19 146 < BS <= 171 51 22624 < BS <= 26487
20 171 < BS <= 200 52 26487 < BS <= 31009
21 200 < BS <= 234 53 31009 < BS <= 36304
22 234 < BS <= 274 54 36304 < BS <= 42502
23 274 < BS <= 321 55 42502 < BS <= 49759
24 321 < BS <= 376 56 49759 < BS <= 58255
25 376 < BS <= 440 57 58255 < BS <= 68201
26 440 < BS <= 515 58 68201 < BS <= 79846
27 515 < BS <= 603 59 79846 < BS <= 93479
28 603 < BS <= 706 60 93479 < BS <= 109439
29 706 < BS <= 826 61 109439 < BS <= 128125
30 826 < BS <= 967 62 128125 < BS <= 150000
31 967 < BS <=1132 63 BS > 150000
表 1
其中, Index表示緩冲区数量等级, Buffer Size ( BS ) value表示与緩 冲区数据量等级所对应的緩冲区数据量; UE上报 BSR时, 根据实际 LCG 组内所有 LCH上待传输的数据量查表, 并上报对应的緩冲区数据量等级。
根据对表 1的查表结果,在 BSR报告中所上报的各个 LCG的緩冲区数 据量等级均适用于 LTE单载波系统。 为了适应目前以及未来飞速增长的各 种无线业务的需求, LTE 的下一个演进标准也已经开始进入制定过程, 也 即先进的 LTE ( LTE- Advanced )标准。
LTE- Advanced是第三代合作伙伴计划( 3GPP, the 3rd Generation Partner Project )组织为了满足国际电信联盟 ( ITU, International Telecommunication Union ) 先进的国际移动通讯 ( IMT- Advanced , International Mobile Telecommunication- Advanced ) 的要求而推出的标准 LTE-Advanced 系统, 是在 LTE release 8系统基础上的一个演进版本, 它引入了很多新技术来满 足 IMT- Advanced的基本需求, 其中最重要的一项技术就是载波聚合。
由于目前无线频谱资源的紧缺性, 世界各移动运营商拥有的频谱资源 往往比较零散, 而 IMT-Advanced要求峰值速率的指标更高(高移动性下支 持 100Mbps, 低移动性下支持 lGbps ), 以目前的 LTE标准最大 20MHz的 带宽是无法满足 IMT-Advanced要求的, 所以需要扩充到更高带宽, 比如频 分双工( FDD, Frequency Division Duplex )最大支持 80MHz,时分双工( TDD, Time Division Duplex )最大支持 100MHz, 所以 UE能够传输的数据量相对 LTE 来说也增加了数倍。 除了带宽增加外, 为了达到更高的速率, 多输入 多输出 (MIMO, Multiple-Input Multiple-Output )也是提升 LTE-Advanced 系统吞吐量的核心技术。 以 LTE-A早期版本为例, 综合考虑上行带宽增加 (相对 LTE带宽的 5倍)和上行双流 MIMO (相对 LTE单流的 2倍), 在 LTE-A系统早期版本中, UE的上行速率将提高为 LTE的 10倍。
如表 1所示, LTE系统中预定义的 BSR table仅能细粒度表示最大 150K 的数据, 其余所有大于 150K的业务都属于同一个 BSR级别 (级别 63 ), LTE-A系统的数据流量提高后, 如果仍然使用 LTE系统预定义的 BSR表, 那么大吞吐量的 LTE-A业务将使得网络无法区分 UE在 150K到 1500K緩 冲区状态, 从而导致资源无法有效的合理分配。 发明内容
有鉴于此, 本发明的主要目的在于提供一种緩冲区数据量等级的上报 方法和系统, 以实现资源更加有效的合理分配。
为达到上述目的, 本发明的技术方案是这样实现的:
本发明提供了一种緩冲区数据量等级的上报方法, 该方法包括: 预设两个緩冲区数据量等级表格, 即第一表格和第二表格; 所述第一 表格为长期演进(LTE )系统使用的緩冲区数据量等级表格, 所述第二表格 为在所述第一表格的基础上通过提高最大緩冲区数据量至 B—A、 提高最小 緩冲区数据量至 ; 或者通过提高最大緩冲区数据量至 β 增加緩冲 区数据量等级至 N TEΑ设计所得;
用户终端 (UE )在上报緩冲区状态报告 (BSR ) 时, 选择所述预设的 第一表格或第二表格进行查询得到緩冲区数据量等级;
所述 UE将查询得到的緩冲区数据量等级通过 BSR发送给所述基站。 在第一表格的基础上提高最大緩冲区数据量至 β 提高最小緩冲区 数据量至 β^— Α之后, 该方法进一步包括:
将 W„E_A的值设置成小于或等于 LTE 系统所使用的緩冲区数据量等级 的值 N, 根据所述 皿 和 „^确定所述第二表格的设计函数, 并 根据所确定的设计函数预设第二表格。
在第一表格的基础上提高最大緩冲区数据量至 β 提高最小緩冲区 数据量至 β^— Α之后, 该方法进一步包括:
扩充第一表格的緩冲区数据量等级数目到 fcmax , 其中 kmax为满足 Bk ≥β A的最小值, Bk_皿表示扩充后的第一表格中当緩冲区数据量等 级为 k 时, 所述緩冲区数据量等级所表示的緩冲区数据量范围的上限值; 第二表格截取扩充后的第一表格中 Bk = B^_A到 Bk_ 之间的緩冲区数据量 等级, 第二表格总的緩冲区数据量等级为 N TE_A , N„E_A的值设置成小于或 等于 LTE系统所使用的緩冲区数据量等级的值 N。
在提高最大緩冲区数据量至 β 增加緩冲区数据量等级至 u 后, 该方法进一步包括:
根据 LTE使用的最小緩冲区数据量 β^ max4和 „^确定所述第二 表格的设计函数, 并根据所确定的设计函数预设第二表格。
该方法进一步包括:
所述 UE在上报 BSR时,根据逻辑信道组( LCG )内所有逻辑信道 ( LCH ) 上待传输的数据量大小,或者根据 UE与基站的约定或基站的指示,选择所 述预设的第 表格或第二表格进行查询得到緩冲区数据量等级。
本发明还提供了一种緩冲区数量等级的上报系统, 该系统包括: 表格 预设模块、 UE和基站, 其中,
所述表格预设模块, 用于预设两个緩冲区数据量等级表格, 即第一表 格和第二表格; 所述第一表格为 LTE系统使用的緩冲区数据量等级表格, 所述第二表格为在所述第一表格的基础上通过提高最大緩冲区数据量至 β 提高最小緩冲区数据量至 ; 或者通过提高最大緩冲区数据量至 Β__Α、 增加緩冲区数据量等级至 N TE_A设计所得;
所述 UE, 用于在上报 BSR时, 选择所述预设的第一表格或第二表格 进行查询得到緩冲区数据量等级, 并将查询得到的緩冲区数据量等级通过 BSR发送给所述基站;
所述基站, 用于从所述 UE上报的 BSR中获取緩冲区数据量等级。 所述表格预设模块进一步用于, 在第一表格的基础上提高最大緩冲区 数据量至 β 提高最小緩冲区数据量至 β Α之后, 将 N TE_A的值设置成 小于或等于 LTE系统所使用的緩冲区数据量等级的值 N, 根据所述
Bmax_A和 NTTF_A确定所述第二表格的设计函数,并根据所确定的设计函数预设 第二表格。
所述表格预设模块进一步用于, 在第一表格的基础上提高最大緩冲区 数据量至 β皿 _A、 提高最小緩冲区数据量至 β Α之后, 扩充第一表格的緩冲 区数据量等级数目到^ ^ 其中 为满足 Β^≥β _Α的最小值, Bk_皿表 示扩充后的第一表格中当緩冲区数据量等级为 k 时, 所述緩冲区数据量等 级所表示的緩冲区数据量范围的上限值; 第二表格截取扩充后的第一表格 中 Bk = Bmn_A到 Bk_皿之间的緩冲区数据量等级,第二表格总的緩冲区数据量 等级为 N TE_A , 将 N TE_A的值设置成小于或等于 LTE系统所使用的緩冲区数 据量等级的值 N
所述表格预设模块进一步用于, 在提高最大緩冲区数据量至 β皿 _A、 增 加緩冲区数据量等级至 N TE_A之后, 根据 LTE使用的最小緩冲区数据量 B^ , max_ 。N TE_A确定所述第二表格的设计函数, 并根据所确定的设计函 数预设第二表格。
所述 UE进一步用于, 在上报 BSR时, 根据 LCG内所有 LCH上待传 输的数据量大小,或者根据 UE与基站的约定或基站的指示,选择所述预设 的第一表格或第二表格进行查询得到緩冲区数据量等级。
本发明所提供的一种緩冲区数据量等级的上报方法和系统, 基站根据 UE在緩冲区状态报告中上报的緩冲区数据量等级分配上行链路授权, 可以 使上行链路授权更加合理、 准确, 从而有效提高载波聚合中 (即多载波系 统) 中的调度效率, 保证资源合理分配。 附图说明
图 1为本发明一种緩冲区数据量等级的上报方法的流程图。 具体实施方式
下面结合附图和具体实施例对本发明的技术方案进一步详细阐述。
LTE 系统的緩冲区数据量等级表中, 各个緩冲区等级是按照指数分布 函数设计的, 具体的设计函数为:
Β k = Β n = N -l , k = l,2, - - -N -l ( 1 )
Figure imgf000010_0001
其中, 令 。= 0 , 緩冲区数据量等级为 0时表示緩冲区数据量为 0, 緩 冲区数据量等级为 k ( k = l,2,...N -l )时所表示的緩冲区数据量范围是下限 值为 B 、 上限值为 Bk的左开右闭区间, 相应的, 也即 Bk表示 BSR table 1 中当緩冲区数据量等级 Index=k 时所表示的緩冲区数据量范围的上限值, Bk_,表示 BSR tablel中当緩冲区数据量等级 Index=k时所表示的緩冲区数据 量范围的下限值; 表示最小非零緩冲区数据量 (简称最小緩冲区数据 量), LTE中为 lOBytes; B 表示最大緩冲区数据量, LTE中为 150000Bytes; N表示最大緩冲区数据量等级, LTE中为 63 , 緩冲区数据量等级 63用来统 一表达緩冲区数据量大于 150000Bytes 的情况, 即对于緩冲区数据量大于 150000Bytes的情况, LTE系统中不再划分粒度等级。 LTE系统中按照上述 緩冲区数据量等级设计函数及相应的参数取值计算, 所得到的緩冲区数据 量等级表格的相对等级误差约为 15% , 该相对等级误差是综合考虑了系统 的调度效率、 BSR 上报的信令开销等因素后所选择的误差等级。 其中上述 相对等级误差的计算公式为:
Figure imgf000010_0002
LTE-A系统弓 I入载波聚合和上行 MIMO后, 相比 LTE系统, UE的上 行速率将大大提高, 具体提高倍数取决于最大上行可聚合载波数和所釆用 的上行 MIMO阶数, LTE-A系统的上行最大速率, 也即 LTE-A系统的最大 緩冲区数据量 β
Β max -A = Β max x N— CCx a ( 3 ) 其中, N_CC为最大上行可聚合载波数, α为所釆用的上行 MIMO阶 数。 在 LTE-A早期版本中, N_CC = 5 , = 2 , 因此 8 ^ = 1500000fiytes , 如无特殊说明, 本发明中所使用的 β _Α均釆用 LTE-A早期版本的取值, 如 后续 LTE-A所支持的上行可聚合载波数或者上行 ΜΙΜΟ阶数提高,本发明 实施例中所有方法同样适用。
LTE-A系统的数据流量提高后, 如果仍然使用 LTE系统预定义的 BSR 表,那么大吞吐量的 LTE-A业务将使得网络无法区分 UE在 150K到 1500K 緩冲区状态, 从而导致资源无法有效的合理分配。 为了解决上述问题, 最 简单的方法就是直接将公式 1中的 β皿取值扩大, 即令 β = β _Α , 其他参 数取值不变。 这样处理的一个弊端是新緩冲区数据量等级表的相对等级误 差将提升约 3% , 降低了调度效率, 当 LTE-A UE在 LTE-A基站中仅仅工作 在单载波上时, UE也按照新緩冲区数据量等级表查表上报 BSR, 也在一定 程度上降低了调度效率, 从而导致资源无法高效的合理分配, 使得 LTE-A UE工作在单载波时调度的误差高于 LTE UE
本发明提供了一种 LTE-A系统中緩冲区数据量等级的上报方法, 如图 1所示, 主要包括以下步骤:
步骤 101 , 预设两个緩冲区数据量等级表格, 即第一表格和第二表格; 第一表格为 LTE系统使用的緩冲区数据量等级表格, 第二表格为在第一表 格的基础上通过提高最大緩冲区数据量至 、 提高最小緩冲区数据量至
; 或者通过提高最大緩冲区数据量至 β 增加緩冲区数据量等级至
N TE_A设计所得。
步骤 102 , UE在上报 BSR时, 根据 LCG内所有 LCH上待传输的数据 量大小, 选择预设的第 表格或第二表格进行查询得到緩冲区数据量等级; 或者,根据 UE与基站的约定或基站的指示,选择预设的第一表格或第二表 格进行查询得到緩冲区数据量等级。
步骤 103 , UE将查询得到的緩冲区数据量等级通过 BSR发送给基站。 系统预定义两个緩冲区数据量等级表格, 第一表格 ( BSR table 1 )和第 二表格 ( BSR table2 )。 其中, 第一表格如前述表 1所示, 为 LTE系统使用 的緩冲区数据量等级表; 第二表格基于表 1定义, 有两种预定义方案: 方案一、 在表 1的基础上提高最小緩冲区数据量(提高后的 LTE-A最 小緩冲区数据量标记为 )和最大緩冲区数据量(提高后的 LTE-A最大 緩冲区数据量标记为 Β ); 将 N TE_A的值设置成小于或等于 LTE系统所使 用的緩冲区数据量等级的值 N (即 LTE-A 最大緩冲区数据量等级 NLTE.A < 63 )„ 该方案的相对等级误差与表 1相同, 或者较表 1减少。
在方案一的基础上, 根 β Α、 β Α、 N TEΑ等参数预定义第二表格, 可以釆取以下两种方式:
方式一, 根据 β Α、 B__A , NLTE.A , 确定第二表格的具体设计函数, 根据所确定的具体设计函数设计第二表格;
方式二, 首先扩充表 1 的緩冲区数据量等级数目到 fcmax , 其中^ x为满 足 Bk > B 的最小值, 第二表格截取扩充后的表 1中 Bk = β 4到 Bk 之间的緩冲区数据量等级, 第二表格总的緩冲区数据量等级为 N TE_A
其中, Bk_皿表示扩充后的表 1中当緩冲区数据量等级为 fcmax时,计算所 得的该緩冲区数据量等级所表示的緩冲区数据量范围的上限值。
方案二、 在表 1的基础上提高最大緩冲区数据量( B 增加緩冲区 数据量等级 ( N -A 该方案的相对等级误差与表 1相同。
根据 β^ Bmax_A , NLTE_A , 确定第二表格的具体设计函数, 根据所确定 的具体设计函数设计第二表格。
上述两种方案中, 第二表格各个緩冲区数据量等级的取值范围均为 fc = 0,l...,N TE_A UE上报緩冲区状态报告时, 选择第一表格或第二表格的 緩冲区数据量等级上报。
为使本发明的目的、 技术方案和优点更加清楚明白, 以下结合具体实 施例对上述两种方案进一步详细说明。
在本发明的实施例一中, 根据方案一中的方式二预定义第二表格。 方案 A: 通过 _4和 „^确定第二表格的具体的设计函数。
B k =B nun
Figure imgf000013_0001
min
首先根据公式 (4)进行计算, 其中 为满足 B^ ^— A的最小值; 假设在本实施例中 β =1500000, 那么计算得到 fcmax =77。 设第二表格的 最大緩冲区数据量等级为 NTE_A, 实施例中可以取 NTE_A =63。 所以第二表格 的具体设计函数为:
Bk =Bk+kmca_NLTE A+1 k = l,2,-NLr£_A-l ( 4-1 ) 其中, gk表示第二表格中当緩冲区数据量等级为 k时, 该緩冲区数据 量等级所表示的緩冲区数据量范围的上限值; Bk+kmax.NLiE A+1表示扩充后的第一 表格中当緩冲区数据量等级为 k+fcmax-NTE_A+l 时, 该緩冲区数据量等级所 表示的緩冲区数据量范围的上限值。
方案 B: 通过 和^^ 确定第二表格的具体的设计函数。
Figure imgf000013_0002
min
首先根据公式 (4)进行计算, 其中 为满足 8 ≥ A的最小值, 其中 为满足 Βωη ≥ ¾ A的最小值; 假设在本实施例中 β A =1500000 ,
=150000 , 那么计算得到^ ^77 , ^η =63, 所以第二表格的具体的设 计函数为:
Bk = k = 1 2 - + J (5-1 ) 根据上式可得 N - = - + 1 , 上述实施例中可得 Ν - = 15。 根据上述生成第二表格的具体设计函数的两种设计方案, 具体根据扩 充后的表 1截取生成第二表格时, 可以有以下方案:
方案 A-1 (基于上述方案 Α): 令 。=0, 緩冲区数据量等级为 0时表示 緩冲区数据量为 0, 緩冲区数据量等级为 k ( k = l,2,...N REA-l ) 时, 所表示 的緩冲区数据量范围是下限值为 ΒΗ、上限值为 的左开右闭区间; 緩冲区 数据量等级为 N -A时表示緩冲区数据量为大于 BN Y。
如表 2所示给出了根据本优选实施例所述方法截取扩充后的表 1所得 到的第二表格中所有緩冲区数据量等级及其所表征的緩冲区数据量, 本实 施例中取 NTTF , = 63 , 最后 5, =5 = :107, 5 =5M„.A =1595876
Figure imgf000014_0001
13 603< BS <=706 45 93479< BS <=109439
14 706< BS <=826 46 109439< BS <=128125
15 826< BS <=967 47 128125< BS <=150000
16 967< BS <=1132 48 150000< BS <=175612
17 1132< BS <=1326 49 175612< BS <=205595
18 1326< BS <=1552 50 205595< BS <=240699
19 1552< BS <=1817 51 240699< BS〈=281796
20 1817< BS <=2127 52 281796< BS <=329909
21 2127< BS <=2490 53 329909< BS <=386238
22 2490< BS <=2915 54 386238< BS <=452184
23 2915< BS <=3413 55 452184< BS <=529390
24 3413< BS <=3995 56 529390< BS <=619778
25 3995< BS <=4677 57 619778< BS <=725599
26 4677< BS <=5476 58 725599< BS <=849488
27 5476< BS <=6411 59 849488< BS <=994529
28 6411< BS <=7505 60 994529< BS <=1164335
29 7505< BS <=8787 61 1164335< BS <=1363134
30 8787< BS <=10287 62 1363134< BS <=1595876
31 10287< BS <= 12043 63 BS >1595876
表 2
需要说明的是, 表 2中当緩冲区数据量等级 Index=62时, 所表示的緩 冲区数据量上限取了满足 8 ≥ A的最小值, 即 1595876, 为确切体现 LTE-A 的最大上行速率, 该值也可以人为设置成 β ^ = 1500000 , 即 Index=62 时, 表 2 所表示的緩冲区数据量为 1363134< BS <=1500000, Index=63时, 表 2所表示的緩冲区数据量为 BS >1500000 方案 A-2 (基于上述方案 A ): 令 。= 0 , 緩冲区数据量等级为 k ( k = 0,l,-NLr£_A-l ) Ht , 所表示的緩冲区数据量范围是下限值为 、 上限 值为 BK+I的左开右闭区间; 緩冲区数据量等级为 N -A时表示緩冲区数据量 为大于 BNLTE_A-I 。
如表 3所示给出了根据本优选实施例所述方法截取扩充后的表 1所得 到的第二表格中所有緩冲区数据量等级及其所表征的緩冲区数据量, 本实 施例中取 „^=63, 最后 ¾ =815 =91 ,
Figure imgf000016_0001
: 1595876。
Figure imgf000016_0002
19 1552< BS <=1817 51 240699< BS〈=281796
20 1817< BS <=2127 52 281796< BS <=329909
21 2127< BS <=2490 53 329909< BS <=386238
22 2490< BS <=2915 54 386238< BS <=452184
23 2915< BS <=3413 55 452184< BS <=529390
24 3413< BS <=3995 56 529390< BS <=619778
25 3995< BS <=4677 57 619778< BS <=725599
26 4677< BS <=5476 58 725599< BS <=849488
27 5476< BS <=6411 59 849488< BS <=994529
28 6411< BS <=7505 60 994529< BS <=1164335
29 7505< BS <=8787 61 1164335< BS <=1363134
30 8787< BS <=10287 62 1363134< BS <=1595876
31 10287< BS <= 12043 63 BS >1595876
表 3
方案 B-l (基于上述方案 B ) 緩冲区数据量等级为 k ( k = l
Figure imgf000017_0001
时, 所表示的緩冲区数据量范围是下限值为 、上限值为 的左开右闭区 间; 緩冲区数据量等级为 N -A时表示緩冲区数据量为大于 。 如表 4所示给出了根据本优选实施例所述方法截取扩充后的表 1所得 到的第二表格中所有緩冲区数据量等级及其所表征的緩冲区数据量, 本实 施例中取 β一 = 150000 , Β__Α = 1500000 , 得到 N„E_A = 15。
Figure imgf000017_0002
6 386238< BS <=452184
7 452184< BS <=529390
8 529390< BS <=619778
9 619778< BS <=725599
10 725599< BS <=849488
11 849488< BS <=994529
12 994529< BS <=1164335
13 1164335< BS <=1363134
14 1363134< BS <=1595876
15 BS>1595876
表 4
UE上报緩冲区状态报告 BSR时, 根据实际 LCG组内所有 LCH上待 传输的数据量大小 X , 若 χ < β , 则根据第一表格或第二表格查表, 上报 查表所得的緩冲区数据量等级给基站, 若 χ≥β , 则根据第二表格查表, 上报查表所得的緩冲区数据量等级给基站; 或者若 X
Figure imgf000018_0001
,则根据第一表 格查表, 上报查表所得的緩冲区数据量等级给基站, 若 x ^^^ , 则根据第 二表格查表, 上报查表所得的緩冲区数据量等级给基站。 UE在上述 BSR 中通知基站该 UE查询的是第一表格还是第二表格。基站接收到 UE上报的 BSR后, 根据 UE通知的是查询的第一表格还是第二表格的信息, 根据 UE 上报的緩冲区数据量等级查询第一表格或第二表格,便可获知 UE的緩冲区 数据量。
或者, UE上报緩冲区状态报告 BSR时, UE按照与基站的约定或者根 据基站的指示, 选择第一表格或第二表格查表, 上报查表所得的緩冲区数 据量等级给基站; 基站接收到 UE上报的 BSR后, 根据与 UE的约定或者 根据此前发送给 UE的指示,根据 UE上报的緩冲区数据量等级查询第一表 格或第二表格,便可获知 UE的緩冲区数据量。具体的 UE与基站的约定为, 当基站分配给 UE的上行载波(该上行载波处于工作状态)超过一个时, 选 择第二表格查表; 反之, 当基站分配给 UE的上行载波(该上行载波处于工 作状态)仅为一个时, 选择第一表格查表。 具体的, UE根据基站的指示选 择第一表格或者第二表格查表, 是指 UE按照基站发送给 UE的指示, 如果 基站指示 UE根据第一表格查表, 则 UE根据第一表格查表; 如果基站指示 UE根据第二表格查表, 则 UE根据第二表格查表。
在本发明的实施例一中, 一方面第二表格的相对等级误差等于第一表 格的相对等级误差, 有利于实现多载波系统中高效的上行调度; 另一方面, 当 ^^^取63时, UE可以继续用 6个 bit表示緩冲区数据量等级, 从而不 需要对 BSR上报的格式做修改, 保证了良好的后向兼容性和简单的协议风 格。
在本发明的实施例二中, 根据方案一中的方式一预定义第二表格。
本实施例二釆用方案一中的方式一所述的方法预定义表格, 保证第二 表格的相对等级误差等于第一表格的相对等级误差, 同时为了保证良好的 后向兼容性和简单的协议风格, NT TP_A取 63。 通过 Bmi _A、 B__A , NT TP_A确定 第二表格的具体的设计函数为:
Bk = n = NLTE.A— 1 , k = 1,2,… Nr ( 6 )
Figure imgf000019_0001
或者, β¾ = B_A ( -^)- n = NLTE-A , k = 1,2, ... NL ( 6-1 )
根据第二表格的具体设计函数, 具体生成第二表格时, 有以下两种方 案:
方案 1 (基于公式 6 ): 令 B = 0 , 緩冲区数据量等级为 0时表示緩冲区 数据量为 0 , 緩冲区数据量等级为 k ( k = l,2,〜N^_ Λ-1 ) 时, 所表示的緩冲 区数据量范围是下限值为 ΒΗ、 上限值为 BK的左开右闭区间; 緩冲区数据 量等级为 NTTF_A时表示緩冲区数据量为大于 BN ―,。
如表 5所示给出了本优选实施例方案 1所述方法得到的第二表格所有 緩冲区数据量等级及其所表征的緩冲区数据量。
Figure imgf000020_0001
21 2095< BS <=2449 53 313548< BS <=366676
22 2449< BS <=2864 54 366676< BS <=428806
23 2864< BS <=3350 55 428806< BS <=501464
24 3350< BS <=3917 56 501464< BS <=586433
25 3917< BS <=4581 57 586433< BS <=685800
26 4581< BS <=5357 58 685800< BS <=802004
27 5357< BS <=6264 59 802004< BS <=937897
28 6264< BS <=7326 60 937897< BS <=1096816
29 7326< BS <=8567 61 1096816< BS <=1282663
30 8567< BS <=10018 62 1282663< BS <=1500000
31 10018< BS <=11716 63 BS>1500000
表 5
方案 2 (基于公式 6-1 ): 令 B =0 , 緩冲区数据量等级为 k
( k = 0,l,...N TE_A-l )时, 所表示的緩冲区数据量范围是下限值为 Bk、 上限 值为 Bk+1的左开右闭区间; 緩冲区数据量等级为 N -A时表示緩冲区数据量 为大于 BN.„ 。 如表 6所示给出了本优选实施例方案 2所述方法得到的第二表格所有 緩冲区数据量等级及其所表征的緩冲区数据量。
Figure imgf000021_0001
7 270< BS <=315 39 37232< BS <=43431
8 315< BS <=367 40 43431< BS <=50662
9 367< BS <=428 41 50662< BS <=59097
10 428< BS <=500 42 59097< BS <=68936
11 500< BS <=583 43 68936< BS <=80413
12 583< BS <=680 44 80413< BS <=93802
13 680< BS <=793 45 93802< BS <=109419
14 793< BS <=925 46 109419< BS <=127637
15 925< BS <=1079 47 127637< BS <=148887
16 1079< BS <=1258 48 148887< BS <=173676
17 1258< BS <=1467 49 173676< BS <=202592
18 1467< BS <=1712 50 202592< BS <=236322
19 1712< BS <=1996 51 236322< BS <=275668
20 1996< BS <=2329 52 275668< BS <=321565
21 2329< BS <=2716 53 321565< BS <=375103
22 2716< BS <=3169 54 375103< BS <=437555
23 3169< BS <=3696 55 437555< BS <=510405
24 3696< BS <=4311 56 510405< BS <=595384
25 4311< BS <=5029 57 595384< BS <=694512
26 5029< BS <=5866 58 694512< BS <=810144
27 5866< BS <=6843 59 810144< BS <=945027
28 6843< BS <=7982 60 945027< BS <=1102368
29 7982< BS <=9311 61 1102368< BS <=1285905
30 9311< BS <=10861 62 1285905< BS <=1500000
31 10861< BS <= 12669 63 BS>1500000
表 6
UE上报緩冲区状态报告时,根据实际 LCG组内所有 LCH上待传输的 数据量大小 X , 若 χ < β , 则根据第一表格或第二表格查表, 上报查表所 得的緩冲区数据量等级给基站, 若 χ≥β 则根据第二表格查表, 上报查 表所得的緩冲区数据量等级给基站; 或者, 若 X
Figure imgf000023_0001
, 则根据第一表格查 表, 上报查表所得的緩冲区数据量等级给基站, 若 x ^^^ , 则根据第二表 格查表, 上报查表所得的緩冲区数据量等级给基站。 UE在上报的 BSR中 通知基站 UE查询的是第一表格还是第二表格。基站接收到 UE上报的 BSR 后, 根据 UE通知的是查询的第一表格还是第二表格的信息, 根据 UE上报 的緩冲区数据量等级查询第一表格或第二表格,便可获知 UE的緩冲区数据 量。
或者, UE上报緩冲区状态报告 BSR时, UE按照与基站的约定或者根 据基站的指示, 选择第一表格或第二表格查表, 上报查表所得的緩冲区数 据量等级给基站, 基站接收到 UE上报的 BSR后, 根据与 UE的约定或者 根据此前发送给 UE的指示,根据 UE上报的緩冲区数据量等级查询第一表 格或第二表格,便可获知 UE的緩冲区数据量。具体的 UE与基站的约定为, 当基站分配给 UE的上行载波(该上行载波处于工作状态)超过一个时, 选 择第二表格查表; 反之, 当基站分配给 UE的上行载波(该上行载波处于工 作状态)仅为一个时, 选择第一表格查表。 具体的, UE根据基站的指示选 择第一表格或第二表格查表, 是指 UE按照基站发送给 UE的指示, 如果基 站指示 UE根据第一表格查表, 则 UE根据第一表格查表; 如果基站指示 UE根据第一表格查表, 则 UE根据第一表格查表。
在本发明的实施例二中, 一方面第二表格的相对等级误差等于第一表 格的相对等级误差, 有利于实现多载波系统中高效的上行调度; 另一方面, 当 ^^^取63时, UE可以继续用 6个 bit表示緩冲区数据量等级, 从而不 需要对 BSR上报的格式做修改, 保证了良好的后向兼容性和简单的协议风 格。
在本发明的实施例三中, 根据方案一中的方式一预定义第二表格。 本实施例釆用方案一中的方式一所述的方法预定义第二表格, 通过
B^_A . 5max_A , NTE_A确定第二表格的具体的设计函数为公式(6-1)。 其中 fimn.A = -toMel(62)~-toMel(61) = 10398 , 即取第一表格中的最大误差; NLTE.A 取 63, B max- A A =1500000; }
根据第二表格的具体设计函数, 具体生成第二表格时, 令 B =10287, 緩冲区数据量等级为 k ( k = 0,l,"-NLTE.A-l ) 时, 所表示的緩冲区数据量范 围是下限值为 Bk、 上限值为 Bk+1的左开右闭区间; 緩冲区数据量等级为 NTTF.A时表示緩冲区数据量为大于 BN
如表 7所示给出了根据本优选实施例所述方法得到的第二表格所有緩 冲区数据量等级及其所表征的緩冲区数据量。
Figure imgf000024_0001
13 28351< BS <=30693 45 359437< BS <=389128
14 30693< BS <=33229 46 389128< BS <=421273
15 33229< BS <=35973 47 421273< BS <=456072
16 35973< BS <=38945 48 456072< BS <=493747
17 38945< BS <=42162 49 493747< BS <=534533
18 42162< BS <=45645 50 534533< BS <=578689
19 45645< BS <=49415 51 578689< BS <=626492
20 49415< BS <=53497 52 626492< BS <=678244
21 53497< BS <=57917 53 678244< BS <=734272
22 57917< BS <=62701 54 734272< BS <=794927
23 62701< BS <=67880 55 794927< BS <=860593
24 67880< BS <=73488 56 860593< BS <=931683
25 73488< BS <=79558 57 931683< BS <=1008646
26 79558< BS <=86130 58 1008646< BS <= 1091967
27 86130< BS <=93245 59 1091967< BS <=1182170
28 93245< BS <= 100947 60 1182170< BS <=1279824
29 100947< BS <=109286 61 1279824< BS <=1385546
30 109286< BS <=118314 62 1385546< BS <=1500000
31 118314< BS <=128087 63 BS>1500000
表 7
UE上报緩冲区状态报告时,根据实际 LCG组内所有 LCH上待传输的 数据量大小 X , 若 χ < β皿, 则根据第一表格查表, 上报查表所得的緩冲区 数据量等级给基站, 若 χ≥β皿, 则根据第二表格查表, 上报查表所得的緩 冲区数据量等级给基站; 或者, 若 X
Figure imgf000025_0001
, 则根据第一表格查表, 上报查 表所得的緩冲区数据量等级给基站, 若 > ^^ , 则根据第二表格查表, 上 报查表所得的緩冲区数据量等级给基站。 UE在上述 BSR中通知基站该 UE 查询的是第一表格还是第二表格,基站接收到 UE上报的 BSR后,根据 UE 通知的是查询的第一表格还是第二表格的信息,根据 UE上报的緩冲区数据 量等级查询第一表格或第二表格, 便可获知 UE的緩冲区数据量。
或者, UE上报緩冲区状态报告 BSR时, UE按照与基站的约定或者根 据基站的指示, 选择第一表格或者第二表格查表, 上报查表所得的緩冲区 数据量等级给基站, 基站接收到 UE上报的 BSR后, 根据与 UE的约定或 者根据此前发送给 UE的指示,根据 UE上报的緩冲区数据量等级查询第一 表格或第二表格, 便可获知 UE的緩冲区数据量。 具体的, UE与基站的约 定为, 当基站分配给 UE的上行载波(该上行载波处于工作状态)超过一个 时, 选择第二表格查表; 反之, 当基站分配给 UE的上行载波(该上行载波 处于工作状态)仅为一个时, 选择第一表格查表。 具体的, UE根据基站的 指示选择第一表格或第二表格查表, 是指 UE按照基站发送给 UE的指示, 如果基站指示 UE根据第一表格查表, 则 UE根据第一表格查表; 如果基站 指示 UE根据第二表格查表, 则 UE根据第二表格查表。
在本发明的实施例三中, 一方面第二表格的相对等级误差较表格 1 的 相对等级误差小, 有利于实现多载波系统中高效的上行调度; 另一方面, 当 ^^^取63时, UE可以继续用 6个 bit表示緩冲区数据量等级, 从而不 需要对 BSR上报的格式做修改, 保证了良好的后向兼容性和简单的协议风 格。 本实施例中, 第二表格的相对等级误差较第一表格的相对等级误差小, 可以更有效的提高资源分配效率, 实施上因为第一表格的相对等级误差根 据验证是一个可接受的相对等级误差, 因此本实施例中, 保持第二表格与 第一表格具有相同的相对等级误差, 即 ^^、 β ^保持上述取值, 通过减 少 W™_A的取值, 也可以保证多载波系统中资源调度的有效性, 本优选实施 例不再具体赘述减少 N TE_A之后的表格内容。
在本发明的实施例四中, 根据方案一中的方式一预定义第二表格。 本实施例釆用方案一中的方式一所述的方法预定义第二表格, 通过 β Α、 B_A , NTE_A确定第二表格的具体的设计函数为:
B n = NTTF A+l, k = l,2,'.'NTTF A+l (7)
Figure imgf000027_0001
其中, ^=150000, 即取第一表格中的最大緩冲区数据量; „^取 63, B A =1500000。
根据第二表格的具体设计函数, 具体生成第二表格时, 緩冲区数据量 等级为 k ( k = 0,l,"-NLTE.A-l ) 时, 所表示的緩冲区数据量范围是下限值为 Bk+1、 上限值为 Bk+2的左开右闭区间; 緩冲区数据量等级为 NTE_A时表示緩 冲区数据量为大于 BN +1
如表 8所示给出了根据本优选实施例所述方法得到的第二表格所有緩 冲区数据量等级及其所表征的緩冲区数据量。
Figure imgf000027_0002
13 241236< BS <=250216 45 776922< BS <=805843
14 250216< BS <=259530 46 805843< BS <=835840
15 259530< BS <=269191 47 835840< BS <=866954
16 269191< BS <=279212 48 866954< BS <=899227
17 279212< BS <=289605 49 899227< BS <=932701
18 289605< BS <=300386 50 932701< BS <=967421
19 300386< BS <=311568 51 967421< BS <=1003433
20 311568< BS <=323166 52 1003433< BS <=1040786
21 323166< BS <=335196 53 1040786< BS <=1079529
22 335196< BS <=347673 54 1079529< BS <=1119715
23 347673< BS <=360615 55 1119715< BS <=1161396
24 360615< BS <=374039 56 1161396< BS <= 1204629
25 374039< BS <=387963 57 1204629< BS <= 1249471
26 387963< BS <=402405 58 1249471< BS <=1295983
27 402405< BS <=417384 59 1295983< BS <= 1344226
28 417384< BS <=432922 60 1344226< BS <=1394265
29 432922< BS <=449037 61 1394265< BS <=1446167
30 449037< BS <=465753 62 1446167< BS <=1500000
31 465753< BS <=483090 63 BS>1500000
表 8
UE上报緩冲区状态报告时,根据实际 LCG组内所有 LCH上待传输的 数据量大小 X , 若 χ < β 则根据第一表格查表, 上报查表所得的緩冲区 数据量等级给基站; 若 χ≥β 则根据第二表格查表, 上报查表所得的緩 冲区数据量等级给基站。 UE在上报的 BSR中通知基站该 UE查询的是第一 表格还是第二表格。 基站接收到 UE上报的 BSR后, 根据 UE通知的是查 询的第一表格还是第二表格的信息,根据 UE上报的緩冲区数据量等级查询 第一表格或第二表格, 便可获知 UE的緩冲区数据量。 在本发明的实施例四中, 一方面第二表格的相对等级误差较第一表格 的相对等级误差小, 有利于实现多载波系统中高效的上行调度; 另一方面, 当 ^^^取63时, UE可以继续用 6个 bit表示緩冲区数据量等级, 从而不 需要对 BSR上报的格式做修改, 保证了良好的后向兼容性和简单的协议风 格。 本优选实施例中, 第二表格的相对等级误差较第一表格的相对等级误 差小, 可以更有效的提高资源分配效率, 实施上因为第一表格的相对等级 误差根据验证是一个可接受的相对等级误差, 因此本实施例中, 保持第二 表格与第一表格具有相同的相对等级误差, 即 β Α、 β皿 _Α保持上述取值, 通过减少 N TE_A的取值, 也可以保证多载波系统中资源调度的有效性, 本优 选实施例不再具体赘述减少 N TE_A之后的表格内容。
在本发明的实施例五中, 根据方案二预定义第二表格。
本实施例中, 为了保证第二表格的前 64个緩冲区数据量等级所表征的 緩冲区数据量与第一表格完全一致, 同时保证 150Kbytes到 1500Kbytes之 间的緩冲区数据量等级的相对等级精度保持在 15%, 第二表格在第一表格 的基础上提高最大緩冲区数据量,增加緩冲区数据量等级。根据 max_A、 NLTE.A 确定第二表格的具体的设计函数为:
Bk = n = N - 2 , k = l,2, - NLTE.A -l ( 7 )
Figure imgf000029_0001
其 ,、中 1 β mi.n-AΑ = β nu.n, B max-A A = 1500000 , NT LTTFE-AA = 78 , 如表 9所 '示给出了根 据本优选实施例所述方法得到的第二表格所有緩冲区数据量等级及其所表 征的緩冲区数据量。 实施例五中, 第二表格的相对等级误差等于第一表格 的相对等级误差, 而且可以用统一的相对等级误差表征从 lOByte 到 1500Kbytes 之间的緩冲区数据量, 有利于实现多载波系统中高效的上行调 度。
Figure imgf000029_0002
Figure imgf000030_0001
27 532< BS <=623 66 261175< BS <=306159
28 623< BS <=731 67 306159< BS <=358890
29 731< BS <=856 68 358890< BS <=420703
30 856< BS <=1004 69 420703< BS <=493162
31 1004< BS <=1177 70 493162< BS <=578102
32 1177< BS <=1379 71 578102< BS <=677671
33 1379< BS <=1617 72 677671< BS <=794389
34 1617< BS <=1895 73 794389< BS <=931210
35 1895< BS <=2221 74 931210< BS <=1091597
36 2221< BS <=2604 75 1091597< BS <=1279608
37 2604< BS <=3052 76 1279608< BS <=1500000
38 3052< BS <=3578 77 BS>1500000
表 9
UE上报緩冲区状态报告时,根据实际 LCG组内所有 LCH上待传输的 数据量大小 X , 若 χ < β 则根据第一表格查表, 上报查表所得的緩冲区 数据量等级给基站; 若 χ≥β 则根据第二表格查表, 上报查表所得的緩 冲区数据量等级给基站。 UE在上报的 BSR中通知基站 UE查询的是第一表 格还是第二表格。 基站接收到 UE上报的 BSR后, 根据 UE通知的是查询 的第一表格还是第二表格的信息,根据 UE上报的緩冲区数据量等级查询第 一表格或第二表格, 便可获知 UE的緩冲区数据量。
以上所有实施例中, 对于接入到 LTE- Α系统的 LTE UE而言, 均继续 查询第一表格上报 BSR
对应上述緩冲区数据量等级的上报方法, 本发明还提供了一种緩冲区 数据量等级的上报系统, 包括: 表格预设模块、 UE和基站。 其中, 表格预 设模块, 用于预设两个緩冲区数据量等级表格, 即第一表格和第二表格; 第一表格为 LTE系统使用的緩冲区数据量等级表格, 第二表格为在第一表 格的基础上通过提高最大緩冲区数据量至 β _Α、 提高最小緩冲区数据量至 B^_A; 或者通过提高最大緩冲区数据量至 β 增加緩冲区数据量等级至 N„E_A设计所得。 UE, 用于在上报 BSR时, 根据 LCG内所有 LCH上待传 输的数据量大小, 选择预设的第一表格或第二表格进行查询得到緩冲区数 据量等级; 或者, 根据 UE与基站的约定或基站的指示, 选择预设的第一表 格或第二表格进行查询得到緩冲区数据量等级; 将查询得到的緩冲区数据 量等级通过 BSR发送给基站。 基站, 用于从 UE上报的 BSR中获取緩冲区 数据量等级。
表格预设模块进一步用于, 在第一表格的基础上提高最大緩冲区数据 量至 β 提高最小緩冲区数据量至 β Α之后, 将 N TE_A的值设置成小于 或等于 LTE 系统所使用的緩冲区数据量等级的值 N, 根据 ^^、 Bmax_A ^ NLTE.A确定第二表格的设计函数, 并根据所确定的设计函数预设第二表格; 或者, 在第一表格的基础上提高最大緩冲区数据量至 β 提高最小緩冲 区数据量至 。— A之后,扩充第一表格的緩冲区数据量等级数目到 fcmax , 其中 为满足 Bk ≥β _A的最小值, Bk 表示扩充后的第一表格中当緩冲区 数据量等级为 k 时, 所述緩冲区数据量等级所表示的緩冲区数据量范围的 上限值;第二表格截取扩充后的第一表格中 Bk = A到 Bk_ 之间的緩冲区 数据量等级, 第二表格总的緩冲区数据量等级为 N TE_A , 将 N TE_A的值设置 成小于或等于 LTE系统所使用的緩冲区数据量等级的值
所述表格预设模块也可以用于, 在提高最大緩冲区数据量至 β 增 加緩冲区数据量等级至 N TE_A之后, 根据 LTE使用的最小緩冲区数据量 B^ . max_ N TEA确定第二表格的设计函数, 并根据所确定的设计函数预 设第二表格。
综上所述, 通过本发明, 基站根据 UE在 BSR中上报的緩冲区数据量 等级分配上行链路授权, 可以使上行链路授权更加合理、 准确, 从而有效 提高载波聚合中 (即多载波系统) 中的调度效率, 保证资源合理分配。 以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。

Claims

权利要求书
1 种緩冲区数据量等级的上报方法, 其特征在于, 该方法包括: 预设两个緩冲区数据量等级表格, 即第一表格和第二表格; 所述第一 表格为长期演进(LTE )系统使用的緩冲区数据量等级表格, 所述第二表格 为在所述第一表格的基础上通过提高最大緩冲区数据量至 B—A、 提高最小 緩冲区数据量至 ; 或者通过提高最大緩冲区数据量至 β 增加緩冲 区数据量等级至 N TEΑ设计所得;
用户终端 (UE )在上报緩冲区状态报告 (BSR ) 时, 选择所述预设的 第一表格或第二表格进行查询得到緩冲区数据量等级;
所述 UE将查询得到的緩冲区数据量等级通过 BSR发送给所述基站。
2、 根据权利要求 1所述緩冲区数据量等级的上报方法, 其特征在于, 在第一表格的基础上提高最大緩冲区数据量至 β 提高最小緩冲区数据 量至 之后, 该方法进一步包括:
将 W™_A的值设置成小于或等于 LTE 系统所使用的緩冲区数据量等级 的值 N, 根据所述 皿 和 „^确定所述第二表格的设计函数, 并 根据所确定的设计函数预设第二表格。
3、 根据权利要求 1所述緩冲区数据量等级的上报方法, 其特征在于, 在第一表格的基础上提高最大緩冲区数据量至 β 提高最小緩冲区数据 量至 之后, 该方法进一步包括:
扩充第一表格的緩冲区数据量等级数目到 fcmax , 其中 km3X为满足 Bk ≥β A的最小值, Bk_皿表示扩充后的第一表格中当緩冲区数据量等 级为 k 时, 所述緩冲区数据量等级所表示的緩冲区数据量范围的上限值; 第二表格截取扩充后的第一表格中 Bk = B^_A到 Bk_ 之间的緩冲区数据量 等级, 第二表格总的緩冲区数据量等级为 NT TP_A , NT TP_A的值设置成小于或 等于 LTE系统所使用的緩冲区数据量等级的值 N。
4、 根据权利要求 1所述緩冲区数据量等级的上报方法, 其特征在于, 在提高最大緩冲区数据量至 β 增加緩冲区数据量等级至 N TE_A之后, 该 方法进一步包括:
根据 LTE使用的最小緩冲区数据量 β^ max4和 „^确定所述第二 表格的设计函数, 并根据所确定的设计函数预设第二表格。
5、 根据权利要求 1至 4任一项所述緩冲区数据量等级的上报方法, 其 特征在于, 该方法进一步包括:
所述 UE在上报 BSR时,根据逻辑信道组( LCG )内所有逻辑信道 ( LCH ) 上待传输的数据量大小,或者根据 UE与基站的约定或基站的指示,选择所 述预设的第 表格或第二表格进行查询得到緩冲区数据量等级。
6、 一种緩冲区数量等级的上报系统, 其特征在于, 该系统包括: 表格 预设模块、 UE和基站, 其中,
所述表格预设模块, 用于预设两个緩冲区数据量等级表格, 即第一表 格和第二表格; 所述第一表格为 LTE系统使用的緩冲区数据量等级表格, 所述第二表格为在所述第一表格的基础上通过提高最大緩冲区数据量至 β 提高最小緩冲区数据量至 ; 或者通过提高最大緩冲区数据量至 Β__Α、 增加緩冲区数据量等级至 N TE_A设计所得;
所述 UE, 用于在上报 BSR时, 选择所述预设的第一表格或第二表格 进行查询得到緩冲区数据量等级, 并将查询得到的緩冲区数据量等级通过 BSR发送给所述基站;
所述基站, 用于从所述 UE上报的 BSR中获取緩冲区数据量等级。
7、 根据权利要求 6所述緩冲区数量等级的上报系统, 其特征在于, 所 述表格预设模块进一步用于, 在第一表格的基础上提高最大緩冲区数据量 至 β 提高最小緩冲区数据量至 之后, 将 N TE_A的值设置成小于或 等于 LTE系统所使用的緩冲区数据量等级的值 N,根据所述 、 Bmax_A和 NLTE.A确定所述第二表格的设计函数, 并根据所确定的设计函数预设第二表 格。
8、 根据权利要求 6所述緩冲区数量等级的上报系统, 其特征在于, 所 述表格预设模块进一步用于, 在第一表格的基础上提高最大緩冲区数据量 至 提高最小緩冲区数据量至 之后, 扩充第一表格的緩冲区数据 量等级数目到^ ^ 其中 为满足 Bk ≥ _A的最小值, Bk_皿表示扩充 后的第一表格中当緩冲区数据量等级为 k 时, 所述緩冲区数据量等级所表 示的緩冲区数据量范围的上限值; 第二表格截取扩充后的第一表格中 Bk = A到 Bk_ 之间的緩冲区数据量等级,第二表格总的緩冲区数据量等 级为 N TE_A , 将 N TE_A的值设置成小于或等于 LTE系统所使用的緩冲区数据 量等级的值 N
9、 根据权利要求 6所述緩冲区数量等级的上报系统, 其特征在于, 所 述表格预设模块进一步用于, 在提高最大緩冲区数据量至 β 增加緩冲 区数据量等级至 N TEA之后,根据 LTE使用的最小緩冲区数据量 ^。、 5max_A 和 N -A确定所述第二表格的设计函数, 并根据所确定的设计函数预设第二 表格。
10、 根据权利要求 6至 9任一项所述緩冲区数量等级的上报系统, 其 特征在于, 所述 UE进一步用于, 在上报 BSR时, 根据 LCG内所有 LCH 上待传输的数据量大小,或者根据 UE与基站的约定或基站的指示,选择所 述预设的第 表格或第二表格进行查询得到緩冲区数据量等级。
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CN102742345A (zh) 2012-10-17
US20130016615A1 (en) 2013-01-17
EP2566274A4 (en) 2017-04-19
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EP2566274A1 (en) 2013-03-06
EP2566274B1 (en) 2018-12-19
US8953459B2 (en) 2015-02-10

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