WO2013104165A1

WO2013104165A1 - Method and device for transmitting uplink data and uplink scheduling information

Info

Publication number: WO2013104165A1
Application number: PCT/CN2012/075615
Authority: WO
Inventors: 苏岚
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-01-11
Filing date: 2012-05-16
Publication date: 2013-07-18
Also published as: CN102457914B; CN102457914A

Abstract

Disclosed are a method and device for transmitting uplink data and uplink scheduling information. The method for transmitting uplink data comprises: a terminal calculates a bit error rate of uplink data sent in a current period; determining whether the bit error rate is greater than a preset bit error rate threshold; if yes, the terminal setting a transmission parameter according to an average transmission rate in the current period and a target transmission rate; if not, determining whether bit error rates within a specified number of successive periods comprising the present period are smaller than or equal to the bit error rate threshold; if all the bit error rates are smaller than or equal to the bit error rate threshold, the terminal setting the transmission parameter according to an average transmission block value of the current period and a transmission block threshold; and performing subsequent uplink data transmission according to the set transmission parameter. The present invention solves the problem of unstable transmission rate of the UE in the prior art, and indirectly reduces the size of the transmission block by adjusting the transmission parameter, hence lowering the bit error rate of data transmission and improving the data transmission rate.

Description

TECHNICAL FIELD The present invention relates to the field of communications, and in particular to a method and an apparatus for transmitting uplink data and uplink scheduling information. BACKGROUND In the third generation (3rd generation, 3G) mobile communication system, a Universal Mobile Telecommunications System (UMTS) is one of them, and its network structure is composed of a core network (Core Network, It is abbreviated as CN), Universal Mobile Telecommunication System Radio Access Network (UTRAN) and User Equipment (UE). The UTRAN communicates with the UE over the air interface (Uu interface). The high speed uplink packet access (HSUPA) function is introduced in the prior art, mainly to support high-speed uplink data services, reduce transmission delay, and increase peak rate. The prior art also introduces High-Speed Packet Access (HSPA+), which further enhances the transmission capability of HSPA. After the introduction of HSPA and HSPA+, the uplink is transmitted through the Enhanced Dedicated Channel (E-DCH), and the downlink is transmitted through the High Speed Downlink Shared Channel (HS-DSCH) channel. Both channels are shared channels, and the general packet switching (PS) domain services are based on scheduled transmission. That is, the specific time and physical resources for data transmission and reception are indicated by corresponding downlink control channels. After the data is sent and received, the receiver reports the data reception status and channel quality through the corresponding feedback channel.

The uplink transmission process of the HSPA/HSPA+ is as follows: In the scheduled transmission mode, the UE first receives the authorization information on the E-DCH Access Grant Channel (E-AGCH), including the authorization. Information such as subframe, time slot, power, code channel, etc.; UE initiates E-DCH data transmission in a subframe in which the authorization is effective; the N subframe of the UE after E-DCH data transmission passes the E-DCH HARQ indicator channel (E-DCH) The Hybrid ARQ Indicator Channel (referred to as E-HICH) receives the feedback information of the network side, and the feedback information includes a Hybrid Automatic Repeat Request (HARQ) process identifier and a data reception confirmation character (for the E-DCH data). Acknowledgement (abbreviated as ACK) / Non-Acknowledgement (NACK). The downlink transmission process of the HSPA/HSPA+ is as follows: The UE first receives the downlink data transmission signaling on the High Speed Shared Control Channel (HS-SCCH), indicating that the UE is in the specified subframe and the specified time. The slot and the code channel receive the HS-DSCH information; the UE receives the HS-DSCH data according to the indication of the HS-SCCH; the M subframe after the UE receives the HS-DSCH data passes the High Speed Shared Indication Channel (High Speed Shared Indication Channel, referred to as HS-SICH) transmits ACK/NACK information and Channel Quality Indicator (CQI) for HS-DSCH data reception to the network side. Currently, for the transmission mode of the HSPA/HSPA+, the UE usually calculates or generates related transmission parameters according to the control indication information of the network side, and then performs subsequent information transmission according to the transmission parameters. However, this transmission parameter does not take into account the actual transmission conditions of the UE itself, resulting in an unstable transmission rate. In view of the problem that the UE transmission rate is unstable in the related art, an effective solution has not been proposed yet. SUMMARY OF THE INVENTION The embodiments of the present invention provide a method and an apparatus for transmitting uplink data and uplink scheduling information, so as to at least solve the problem that the UE transmission rate is unstable in the related art. According to an aspect of the present invention, a method for transmitting uplink data is provided, the method includes: the terminal statistics a bit error rate of uplink data transmission in a current period; and the terminal determining whether the bit error rate is greater than a set error code. a threshold; if yes, the terminal sets a transmission parameter according to the average transmission rate and the target transmission rate in the current period; if not, the terminal determines whether the error rate of the consecutive specified number of cycles including the current period is average The terminal is less than or equal to the bit error rate threshold. If both are less than or equal to each other, the terminal sets a transmission parameter according to the average transmission block value and the transmission block threshold of the current period; the terminal performs subsequent uplink data transmission according to the set transmission parameter. The setting, by the terminal, the transmission parameter according to the average transmission rate and the target transmission rate in the current period includes: acquiring, by the terminal, an average transmission block value of the current period; and calculating, by the terminal, the current period according to the average transmission block value and the error rate. An average transmission rate; the terminal calculates a target transmission rate according to the set target transmission block value and the bit error rate threshold; the terminal compares the magnitude relationship between the average transmission rate and the target transmission rate, and sets a transmission parameter according to the comparison result. The terminal setting the transmission parameter according to the comparison result includes: if the average transmission rate is greater than or equal to the target transmission rate, the terminal maintains the current transmission parameter unchanged; if the average transmission rate is less than the target transmission rate, the terminal transmits the target The block value is used as a transport block value for subsequent uplink data, and the code rate of the uplink transmission is updated according to the above-mentioned target transport block value. And determining, by the terminal, whether the error rate of the consecutive specified number of cycles including the current period is less than or equal to the error rate threshold includes: the terminal opening period counter; and the terminal counting the error of the next period of the current period Whether the code rate is less than or equal to the above error rate threshold, if yes, the value of the cycle counter is incremented by 1, and the statistics are continued until the value of the cycle counter is the specified number; if not, the cycle counter is stopped. The setting, by the terminal, the transmission parameter according to the average transmission block value and the transmission block threshold of the current period, includes: acquiring, by the terminal, an average transmission block value of the current period; and comparing, by the terminal, the average transmission block value of the current period and the size of the transmission block threshold. Relationship, and set the transmission parameters based on the result of the comparison. The setting, by the terminal, the transmission parameter according to the comparison result includes: if the average transmission block value of the current period is greater than or equal to the transmission block threshold, the terminal maintains the current transmission parameter unchanged; if the average transmission block value of the current period is smaller than the foregoing transmission block Threshold, the terminal increases the average transport block value by a specified value, sets the transport block value used by the subsequent uplink data to the up-converted average transport block value, and updates the uplink transmission code rate according to the up-converted average transport block value. According to another aspect of the present invention, a method for transmitting uplink scheduling information is provided, where the method includes: the terminal reads a TEBS (total cache occupancy state) of the E-DCH; if the TEBS=0, the terminal detects the specified Whether the TEBS read in the duration continues to be 0; if the TEBS is greater than 0 in the specified duration, the terminal sets the TEBS in the scheduling information reported to the network side to be a non-zero value; if the detection is within the specified duration The TEBS is set to 0, and the terminal sets the TEBS in the scheduling information reported to the network side to be 0. The terminal sends the scheduling information when the scheduling report time arrives, where the scheduling information carries the set TEBS. The specified duration is equal to the timing duration of the timer. The setting of the timing duration includes: setting, by the terminal, an initial value of the timing duration according to a state of the radio link control layer; and calculating, by the terminal, an average response time of consecutively designating downlink data feedback packets. If the average response time interval is less than or equal to the initial value, the terminal sets the timing duration to be equal to the initial value; if the average response time interval is greater than the initial value, the terminal sets the timing duration to be equal to the average response time interval. According to still another aspect of the embodiments of the present invention, a device for transmitting uplink data is provided, where the device includes: a bit error rate statistics module, configured to collect a bit error rate of uplink data transmission in a current cycle; a module, configured to determine whether the bit error rate calculated by the bit error rate statistics module is greater than a set error rate threshold; the first transmission parameter setting module is configured to determine that the first bit error rate determining module is In the case of the above, the transmission parameter is set according to the average transmission rate and the target transmission rate in the current period; and the second error rate determination module is configured to determine that the determination result of the first error rate determination module is negative. Including the above Whether the error rate of the consecutive designated number of periods including the pre-cycle is less than or equal to the error rate threshold, and the second transmission parameter setting module is set to be YES at the second error rate determination module. In the case, the transmission parameter is set according to the average transmission block value and the transmission block threshold of the current period; the uplink data transmission module is configured to perform the subsequent transmission parameter according to the first transmission parameter setting module or the second transmission parameter setting module. The transmission of upstream data. The first transmission parameter setting module includes: an average transmission block value acquiring unit configured to acquire an average transmission block value of the current period; and an average transmission rate calculation unit configured to be configured according to the average transmission block acquired by the average transmission block value acquiring unit The value and the bit error rate are used to calculate an average transmission rate of the current period; the target transmission rate calculation unit is configured to calculate a target transmission rate according to the set target transmission block value and the bit error rate threshold; and the transmission rate comparison unit is set to compare And a magnitude relationship between the average transmission rate calculated by the average transmission rate calculation unit and the target transmission rate calculated by the target transmission rate calculation unit; and a transmission parameter setting unit configured to set a transmission parameter according to a result of the comparison by the transmission rate comparison unit. The transmission parameter setting unit includes: a first setting subunit, configured to maintain the current transmission parameter unchanged if the comparison result of the transmission rate comparison unit is that the average transmission rate is greater than or equal to the target transmission rate; a subunit, configured to use the target transport block value as a transport block value used for subsequent uplink data, where the comparison result of the foregoing transmission rate comparing unit is that the average transmission rate is less than the target transmission rate, and according to the target transport block The value updates the bit rate of the upstream transmission. The second error rate determination module includes: a counter on unit, configured to turn on a period counter; and a statistical unit configured to count whether the error rate of the next period of the current period is less than or equal to the error rate threshold; And if the statistical result of the statistical unit is that the error rate of the next period of the current period is less than or equal to the error rate threshold, the value of the period counter is incremented by 1, and the statistics are continued until the period The value of the counter is the specified number; the counter stop unit is configured to stop the cycle counter if the statistical result of the statistical unit is that the error rate of the next cycle of the current cycle is greater than the error rate threshold. The second transmission parameter setting module includes: an average transmission block value acquiring unit configured to acquire an average transmission block value of the current period; and a comparing unit configured to compare the average transmission block of the current period acquired by the average transmission block value acquiring unit The relationship between the value and the above-mentioned transport block threshold; the setting unit is set to set the transmission parameter according to the result of the comparison unit comparison described above. The setting unit includes: a third setting subunit, configured to maintain the current transmission parameter unchanged if the comparison result of the comparing unit is that the average transmission block value of the current period is greater than or equal to the transmission block threshold; Subunit, set to the average transmission of the current period in the comparison result of the comparison unit When the block value is smaller than the above-mentioned transport block threshold, the average transport block value is up-regulated by a specified value, and the transport block value used for subsequent uplink data is set to the averaged block value after the up-conversion, and the averaged transport block value is adjusted according to the above-mentioned uplink block value. Update the bit rate of the upstream transmission. According to still another aspect of the embodiments of the present invention, a device for transmitting uplink scheduling information is provided, the device includes: a reading module, configured to read a total buffer occupancy state TEBS of the E-DCH; and a detecting module, configured to be in the foregoing When the TEBS=0 read by the reading module, detecting whether the TEBS read within the specified duration is 0; the first setting module is configured to detect that the TEBS is greater than 0 within the specified duration The TEBS in the scheduling information reported to the network side is set to a non-zero value. The second setting module is configured to detect that the TEBS continues to be 0 in the specified duration, and set the scheduling information reported to the network side. The TEBS is 0. The scheduling information sending module is configured to send the scheduling information when the scheduling reporting time arrives, where the scheduling information carries the set TEBS. According to the embodiment of the present invention, the terminal sets the transmission parameter according to the relationship between the error rate of the uplink data transmission in the current period and the set error rate threshold, and then performs subsequent uplink data transmission according to the transmission parameter, thereby solving the related art. The problem that the UE transmission rate is unstable, the transmission block size is indirectly reduced by adjusting the transmission parameters, thereby reducing the error rate of data transmission and increasing the data transmission rate. For the transmission of the uplink scheduling information, by maintaining the scheduling authorization within a specified time, the timely reply status report is achieved, and the downlink data transmission rate and stability are improved. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a method for transmitting uplink data according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for transmitting uplink scheduling information according to an embodiment of the present invention; FIG. 3 is an uplink according to an embodiment of the present invention; FIG. 4 is a structural block diagram of a transmission apparatus for uplink scheduling information according to an embodiment of the present invention; FIG. 5 is a schematic structural diagram of each functional module of uplink and downlink according to an embodiment of the present invention; Flowchart of the working method of the uplink error rate statistics module of the embodiment of the invention; 7 is a flowchart of a working method of an uplink rate estimating module according to an embodiment of the present invention; FIG. 8 is a flowchart of a working method of a downlink feedback packet time interval statistic module according to an embodiment of the present invention; A flow chart of the working method of the delay timer management module of the example. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. For the uplink data transmission process and the downlink data transmission process of the HSPA/HSPA+, the embodiment of the present invention provides a method and a device for transmitting uplink data and uplink scheduling information. The details will be described below by way of examples. This embodiment provides a method for transmitting uplink data, as shown in FIG. 1 is a flowchart of a method for transmitting uplink data, the method includes the following steps (step S102 - step S110): Step S102, the terminal collects uplinks of the current period. The bit error rate of data transmission. Step S104: The terminal determines whether the bit error rate is greater than a set error rate threshold; if yes, step S106 is performed, and if no, step S108 is performed. Step S106, the terminal sets a transmission parameter according to the average transmission rate and the target transmission rate in the current period. Step S108: The terminal determines whether the error rate of the consecutive specified number of periods including the current period is less than or equal to the error rate threshold. If both are less than or equal to the average transmission block of the current period. The value and the transfer block threshold set the transfer parameters. Step S110: The terminal performs subsequent uplink data transmission according to the set transmission parameter. Through the above method, the terminal sets the transmission parameter according to the relationship between the error rate of the uplink data transmission of the current period and the set error rate threshold, and then performs subsequent uplink data transmission according to the transmission parameter, thereby solving the UE transmission in the related art. The problem of unstable rate reduces the transmission block size indirectly by adjusting the transmission parameters, thereby reducing the error rate of data transmission and increasing the data transmission rate. In the foregoing step S102, the specific process of the terminal collecting the error rate of the uplink data transmission in the current period may be: when the HSPA/HSPA+ uplink data transmission is started, the UE starts to count the error rate of the data transmission on the E-DCH channel (ie, the above error). Rate), the method of calculating the bit error rate can be N, and the statistics of consecutive N E-DCH The correct number of errors sent by the data, and the block error ratio (BLER) is calculated accordingly. The following is expressed by BLER_cur (0<BLER_cur<l), and E- is recorded in one cycle. The size of the DCH data transmission block is K_cur. If the period is small, the data fluctuation is small, and K_cur can be calculated. If the period is large, the data fluctuation is large, and the average value of the data can be calculated as K_cur. Based on this, the average rate of uplink data transmission in the time period (ie, the average transmission rate) is calculated. S_cur = K cur * (1 - BLER cur) I TTI, where ΤΤΙ is the transmission time interval (Transmission Time Interval, referred to as TTI). Assume that the tolerance threshold of the error rate of a data transmission (ie, the above error rate threshold) is set to BLER_Threshold, which is derived from the BLER target value of the network configuration. Then, step S104 is performed to determine whether the bit error rate is greater than a set error rate threshold. If BLER_cur is lower than the threshold, the transmission is considered to be normal. Simultaneously record a maximum transport block size K_max, which is equal to E-TFC at the initial time.

(Enhanced Dedicated Transport Channel Transport Format Combination) The maximum transport block size selected. If the BLER_cur is greater than the error rate threshold, the present embodiment provides a preferred implementation manner, that is, the terminal acquires the average transmission block value of the current period, and the terminal calculates the foregoing according to the average transmission block value and the error rate. The average transmission rate of the current period, the terminal calculates a target transmission rate according to the set target transmission block value and the bit error rate threshold, and the terminal compares the relationship between the average transmission rate and the target transmission rate, and sets according to the comparison result. Transfer parameters. In this way, the terminal can adjust the transmission parameters autonomously, which provides a basis for adjusting the data error rate by adjusting the transmission block value. For the manner in which the terminal sets the transmission parameter according to the average transmission rate and the target transmission rate in the current period, the specific manner may be to initiate evaluation, and the criterion for evaluation is: taking the current transport block in the transport block table (ie, E-TFC Table) The next-level transport block is used as the target transport block. The size of the target transport block is recorded as K_targ, and BLER_Threshold is used as the target BLER, which is recorded as BLER_targ. Calculate the transmission rate of the target data (that is, the above target transmission rate) S_targ = K_targ * (1 - BLER_ Threshold) / TTI, of course, the target transmission rate can also be set in advance. The manner in which the terminal sets the transmission parameter according to the comparison result may include: if the average transmission rate is greater than or equal to the target transmission rate, the terminal maintains the current transmission parameter unchanged, and if the average transmission rate is less than the target transmission rate, The terminal uses the target transport block value as a transport block value used for subsequent uplink data, and updates the code rate of the uplink transmission according to the target transport block value. This method is simple and reasonable, and the data transmission rate is adjusted by adjusting the size of the data transmission block. For the above method, if S_targ≤S_cur, the current transmission parameter is maintained. Otherwise, the maximum allowed code rate is adjusted, that is, the maximum code rate is lowered. The degree of the downward adjustment is guaranteed to be impossible when the E-TFC selects the maximum transmission block. K_cur, but just choose K_targ, which will ensure that the maximum allowed bit rate is reduced, the size relationship between S_targ and S_cur is balanced, and then K_cur is updated to K_targ. If the BLER_cur is less than or equal to the BLER_targ, step S108 is performed, that is, the terminal determines whether the error rate of the consecutive specified number of periods including the current period is less than or equal to the error rate threshold. Specifically, the terminal turns on the period counter. And calculating whether the error rate of the next cycle of the current period is less than or equal to the bit error rate threshold, and if yes, adding the value of the cycle counter to 1, and continuing to perform statistics until the value of the cycle counter is the specified number. ; If no, stop the above cycle counter. In this way, the relationship between the error rate of the statistical period and the error rate threshold can be accurately and quickly calculated. If the error rate of the consecutively specified number of periods is less than or equal to the error rate threshold, the terminal may set the transmission parameter according to the average transmission block value and the transmission block threshold of the current period, which may specifically include: The terminal acquires an average transport block value of the current period, and the terminal compares the average transport block value of the current period with the size relationship of the transport block threshold, and sets a transmission parameter according to the result of the comparison. The manner of setting the transmission parameters by comparing the relationship between the average transport block value and the above-mentioned transport block threshold is convenient and reasonable, and is a good basis for subsequent adjustment of the data transmission rate. For the manner in which the foregoing terminal sets the transmission parameter according to the result of the comparison, the embodiment may be: if the average transmission block value of the current period is greater than or equal to the transmission block threshold, the terminal maintains the current transmission parameter unchanged; if the current period is The average transmission block value is smaller than the above-mentioned transmission block threshold, the terminal increases the average transmission block value by a specified value, sets the transmission block value used by the subsequent uplink data to the above averaged transmission block value, and according to the above-mentioned up-converted average transmission block. The value updates the bit rate of the upstream transmission. For the above manner, firstly, a cycle counter c is started. When the BLER_cur of the cycle of consecutively specifying the number (for example, P) is less than or equal to BLER_targ, the magnitude relationship of K_cur and K_max is determined. If K_cur < K_max, then the maximum code allowed is adjusted. Rate, that is, up-regulating the maximum code rate, the degree of up-regulation is to ensure that when the E-TFC selects the largest transport block, the size of the upper-level transport block corresponding to the transport block corresponding to the K_cur size can be selected K_up, in general, the previous one The size of the transport block is slightly smaller than that of the next transport block. This ensures that the maximum bit rate is not increased too much when the maximum bit rate is raised, so that the size relationship between S_targ and S_cur is balanced, and then K_cur is updated to K_up. This method details the manner in which the terminal sets the transmission parameters according to the comparison result, so that the terminal can fully utilize its own information and adaptively adjust the transmission parameters of the uplink data, so that the data transmission rate tends to be stable in various wireless environments, and Increase the transmission rate to some extent. Before the count of the cycle counter C reaches P, it is counted whether the error rate of the next cycle of the current cycle is less than or equal to the error rate threshold. If yes, the value of the cycle counter C is incremented by 1, and the statistics are continued until the The value of the cycle counter is the specified number (such as P). During this process, if BLER_cur is higher than BLER_targ, the counter is stopped. This can prevent the transmission rate from being degraded due to the deterioration of the BLER, while maintaining the stability of the transmission rate, and the average transmission rate can be improved to some extent. If the bit error rate continues to reach the bit error rate threshold BLER Threshold, then such an evaluation will be repeated in cycles of N. For the uplink data transmission process of the HSPA/HSPA+, the embodiment provides a method for transmitting uplink scheduling information, and FIG. 2 is a flowchart of a method for transmitting uplink scheduling information, where the method includes the following steps (step S202-step) S210): Step S202, the terminal reads the TEBS of the E-DCH; Step S204, if the TEBS=0, the terminal detects whether the TEBS read in the specified duration continues to be 0; Step S206, if the detection is within the specified duration When the TEBS is greater than 0, the terminal sets the TEBS in the scheduling information reported to the network side to be a non-zero value; Step S208: If the TEBS is continuously detected to be 0 within the specified duration, the terminal sets the scheduling information reported to the network side. The TEBS is 0. In step S210, the terminal sends the scheduling information when the scheduling report time arrives, where the scheduling information carries the set TEBS. Through the above method, the terminal sets the value of the TEBS in the scheduling information reported to the network side according to whether the TEBS read in the specified duration is 0, which solves the problem that the UE transmission rate is unstable in the related art, and reduces the feedback. The delay of packet transmission improves the transmission rate and stability of downlink data. For the transmission of the uplink scheduling information, by maintaining the scheduling authorization within a specified time, the timely reply status report is achieved, and the downlink data transmission rate and stability are improved. The specified duration is equal to the timer duration of the timer, and the timing may be set by: the terminal sets an initial value of the timing duration according to a state of a Radio Link Control (RLC) layer, and the terminal statistics are consecutive. Specifying an average response time interval of the downlink data feedback packets. If the average response time interval is less than or equal to the initial value, the terminal sets the timing duration to be equal to the initial value, and if the average response time interval is greater than the initial value, the terminal sets The above timing duration is equal to the above average response time interval. In the above manner, when the HSPA/HSPA+ downlink data transmission is started, the average response time interval of the downlink data feedback packet is analyzed. Set the timer Timer_resp of the average response time interval of the downlink data feedback packet. Initially, set the initial value of the duration T_init. The setting of T_init is based on the status timer of the Radio Link Control (RLC) layer. Duration, Poll rules, etc. Initially, the feedback packet downlink data that the average response time interval T_ _CU r = T_init. Then, the average response time interval T est of consecutive M downlink data feedback packets is started, and if T est ≤ T cur, the T cur is maintained, otherwise Update T_cur to T_est. When the uplink TEBS=0, Timer_resp is started, and the duration is T_cur. If TEBS > 0 before the timer expires, the timer is restarted. Before the timer expires, in the SI (scheduling information) reported to the network side, the carried TEBS is modified to a non-zero value, and the value may be in the range of 1-31 according to the protocol, and the value corresponds to The amount of data should be greater than or equal to the size of a protocol data unit (PDU) of at least one uplink RLC. If the timer expires and the TEBS is still equal to 0, TEBS=0 is reported in the SI (scheduling information) reported next to the network side. Start Timer_resp again the next time TEBS changes from non-zero to 0. The timer duration should be set to the current T_cur each time the Timer_r _eS p is started or restarted. In this way, it is possible to effectively prevent the network side from stopping the uplink data transmission authorization when reporting the lack of uplink data between the two feedback packets, so that the next time the downlink feedback packet is sent, there is no authorization, and the enhancement needs to be initiated. Type random access, which causes delay in transmission of the feedback packet, affecting the downlink data transmission rate and stability. Corresponding to the foregoing method for transmitting uplink data, this embodiment provides an apparatus for transmitting uplink data, which is used to implement the above embodiment. FIG. 3 is a structural block diagram of an apparatus for transmitting uplink data according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: a bit error rate statistics module 30, a first error rate determination module 32, and a first transmission parameter setting module. 34. The second error rate determination module 36, the second transmission parameter setting module 38, and the uplink data transmission module 39. The structure will be described in detail below. The error rate statistics module 30 is configured to count the error rate of the uplink data transmission in the current period. The first error rate determination module 32 is connected to the error rate statistics module 30, and is configured to determine the statistics of the error rate statistics module 30. Whether the error rate is greater than the set error rate threshold; the first transmission parameter setting module 34 is connected to the first error rate determination module 32, and is set to be YES at the first error rate determination module 32. In this case, the transmission parameter is set according to the average transmission rate and the target transmission rate in the current period; the second error rate determination module 36 is connected to the first error rate determination module 32, and is set to be in the first error rate determination module. If the determination result of 32 is no, it is determined whether the error rate of the consecutive designated number of cycles including the current period is less than or equal to the error rate threshold; and the second transmission parameter setting module 38 is connected to the The second error rate determination module 36 is configured to, according to the determination result of the second error rate determination module 36, the average transmission block value and the transport block gate according to the current period. Setting a transmission parameter; The uplink data transmission module 39 is connected to the first transmission parameter setting module 34 and the second transmission parameter setting module 38, and is configured to perform subsequent uplink according to the transmission parameter set by the first transmission parameter setting module 34 or the second transmission parameter setting module 38. The transmission of data. Through the above device, the first transmission parameter setting module 34 or the second transmission parameter setting module 38 sets the transmission parameter according to the relationship between the error rate of the uplink data transmission of the current period and the set error rate threshold, and then the uplink data transmission module. 39: Performing subsequent uplink data transmission according to the transmission parameter, solving the problem that the UE transmission rate is unstable in the related art, and reducing the transmission block size indirectly by adjusting the transmission parameter, thereby reducing the error rate of data transmission and improving the data. Transmission rate. The first transmission parameter setting module 34, when the determination result of the first error rate determination module 32 is YES, sets a transmission parameter according to the average transmission rate and the target transmission rate in the current period, for the first transmission parameter. The setting module 34 sets a specific mode of the transmission parameter. The embodiment provides a preferred embodiment. The first transmission parameter setting module 34 may include: an average transmission block value acquiring unit, configured to obtain an average transmission block value of the current period. And an average transmission rate calculation unit configured to calculate an average transmission rate of the current period according to the average transmission block value obtained by the average transmission block value acquiring unit and the bit error rate; the target transmission rate calculation unit is set to be set according to a target transmission block value and the bit error rate threshold to calculate a target transmission rate; a transmission rate comparison unit configured to compare the average transmission rate calculated by the average transmission rate calculation unit with the target transmission rate calculated by the target transmission rate calculation unit Relationship Parameter setting unit, the comparison unit compares the result of setting transmission parameters based on the set transmission rate. The transmission parameter setting unit in the first transmission parameter setting module 34 sets the transmission parameter according to the result of the comparison of the transmission rate comparison unit, and the specific manner of setting the transmission parameter for the transmission parameter setting unit, the embodiment provides a preferred implementation. The transmission parameter setting unit may include: a first setting subunit, configured to maintain the current transmission parameter unchanged if the comparison result of the transmission rate comparison unit is that the average transmission rate is greater than or equal to the target transmission rate; a second setting subunit, configured to: when the comparison result of the foregoing transmission rate comparing unit is that the average transmission rate is smaller than the target transmission rate, use the target transmission block value as a transmission block value used for subsequent uplink data, and according to The above target transport block value updates the bit rate of the uplink transmission. When the determination result of the first error rate determination module 32 is negative, the second error rate determination module 36 determines whether the error rate of the consecutive designated number of cycles including the current period is less than or equal to the above. The error rate threshold is a preferred embodiment of the second error rate determination module 36. The second error rate determination module 36 may include: a counter open unit, The statistical unit is configured to count whether the error rate of the next period of the current period is less than or equal to the error rate threshold; and the processing unit is configured to: the statistical result of the statistical unit is the current When the error rate of the next cycle of the cycle is less than or equal to the bit error rate threshold, the value of the cycle counter is incremented by 1, and the statistics are continued until the value of the cycle counter is the specified number; the counter stop unit, When the statistical result of the statistical unit is that the error rate of the next cycle of the current cycle is greater than the error rate threshold, the cycle counter is stopped. The second transmission parameter setting module 38 sets the transmission parameter according to the average transmission block value and the transmission block threshold of the current period, and the second transmission parameter setting module, in the case that the determination result of the second error rate determination module 36 is YES. The embodiment of the present invention provides a preferred embodiment. The second transmission parameter setting module 38 may include: an average transmission block value acquiring unit configured to obtain an average transmission block value of the current period; And a unit configured to compare the size relationship between the average transport block value of the current period acquired by the average transport block value acquiring unit and the transport block threshold; and a setting unit configured to set the transmission parameter according to the result of the comparing unit comparison. For the above-mentioned setting unit in the second transmission parameter setting module 38, a specific embodiment is provided for the specific manner of setting the transmission parameter, and the setting unit may include: a third setting sub-unit, which is set to If the comparison result of the comparison unit is that the average transmission block value of the current period is greater than or equal to the transmission block threshold, the current transmission parameter is maintained unchanged; and the fourth setting subunit is set to be the comparison result of the comparison unit. If the average transmission block value of the current period is smaller than the above-mentioned transmission block threshold, the average transmission block value is up-regulated by a specified value, and the transport block value used for subsequent uplink data is set to the above-mentioned average transport block value after being adjusted, and according to the above-mentioned up-regulation The average transport block value updates the bit rate of the upstream transmission. Corresponding to the foregoing transmission method of the uplink scheduling information, the embodiment provides a transmission apparatus for uplink scheduling information, and the apparatus is used to implement the foregoing embodiment. 4 is a structural block diagram of a transmission apparatus for uplink scheduling information according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes: a reading module 40, a detecting module 42, a first setting module 44, a second setting module 46, and The scheduling information transmitting module 48. The individual modules are described in detail below. The reading module 40 is configured to read the TEBS of the E-DCH; the detecting module 42 is connected to the reading module 40, and is configured to read within a specified time period when the TEBS=0 read by the reading module 40 is detected. Whether the above TEBS continues to be 0; the first setting module 44 is connected to the detecting module 42 and configured to set the TEBS in the scheduling information reported to the network side when the detecting module 42 detects that the TEBS is greater than 0 within the specified duration The second setting module 46 is connected to the detecting module 42 and configured to detect that the TEBS continues to be 0 in the specified duration, and set the TEBS in the scheduling information reported to the network side to be 0; The scheduling information sending module 48 is connected to the first setting module 44 and the second setting module 46, and is configured to send the scheduling information when the scheduling reporting time arrives, wherein the scheduling information carries the set TEBS. Through the above device, the detecting module 42 detects whether the TEBS read in the specified duration is continuously 0, and the first setting module 44 or the second setting module 46 sets the value of the TEBS in the scheduling information reported to the network side according to the solution. In the related art, the problem that the UE transmission rate is unstable, the delay of the feedback packet transmission is reduced, and the transmission rate and stability of the downlink data are improved. For the transmission of the uplink scheduling information, by maintaining the scheduling authorization within a specified time, the timely reply status report is achieved, and the downlink data transmission rate and stability are improved. The specified duration is equal to the timer duration of the timer. The manner of setting the timing duration has been described above and will not be described here. FIG. 5 is a schematic structural diagram of the uplink and downlink functional modules according to an embodiment of the present invention. As shown in FIG. 5, the entire uplink and downlink functional modules exist in the UE's terminal protocol Media Access Control (MAC). Sublayer. The bit error rate statistics module (which functions as the function of the bit error rate statistics module described above) counts the bit error rate BLER of the uplink data transmission by receiving feedback information of the uplink data fed back by L1. The error rate information is input to an uplink rate evaluation module (the function is equivalent to the first error rate determination module and the second error rate determination module), and the module is configured to evaluate whether the transport block size of the uplink data transmission needs to be adjusted. And the adjusted result is applied to the E-TFC selection module (the function is equivalent to the first transmission parameter setting module and the second transmission parameter setting module described above), and the E-TFC selection module will feedback the new transmission block size. Give the uplink rate evaluation module. The downlink feedback packet time interval statistic module (the function is equivalent to the function of the above reading module and the foregoing detecting module) is used for counting the response time interval of the downlink feedback packet, and the information is input to the delay timer management module (the function is equivalent to the above) The first setting module, the second setting module and the function of the scheduling information sending module are used to update the timer duration, and the TEBS value is used as another input of the delay timer management module, which determines the start and stop of the timer. . The delay timer management module inputs the updated information to the scheduling information management module, and is configured to perform a scheduling management operation according to the information. Corresponding to the above various functional modules shown in FIG. 5, FIG. 6 is a flowchart of a working method of an uplink error rate statistics module according to an embodiment of the present invention. As shown in FIG. 6, the method includes the following steps (step S602-step) S620): Step S602, at the initial time, set the count value n=0. Step S604, receiving feedback information of the E-HICH, and adding n to the value of n. In step S606, it is determined whether the value of n is greater than the statistical period N at this time. If yes, step S614 is performed, and if no, step S608 is performed. Step S608, determining whether the result of the E-HICH feedback is a NACK. If yes, go to step S610, if no, go to step S612. In step S610, the count of NACK is incremented by one. In step S612, the E-HICH feedback total count is incremented by 1, and then step S620 is performed. In step S614, the count value n is reset to zero. Step S616, calculating a bit error rate BLER = NACK count I E-HICH feedback total count. Step S618, inputting the BLER to the uplink rate evaluation module. In step S620, the current cycle counts the cycle, enters the next cycle, and then executes step S604. Corresponding to the above various functional modules shown in FIG. 5, FIG. 7 is a flowchart of a working method of an uplink rate evaluation module according to an embodiment of the present invention. As shown in FIG. 7, the method includes the following steps (step S702-step S726) Step S702: After receiving the current error rate BLER information, determine whether the BLER is greater than the set error rate threshold BLER_targ. If yes, go to step S704. If no, go to step S718. Step S704, resetting the counter C. Step S706, calculating an average transmission rate S_cur = K cur * (1 - BLER cur) I TTI in the current period. Step S708, calculating a target transmission rate S_targ = K targ * (1 - BLER - Threshold) I TTI. In step S710, it is determined whether S_cur is less than S-targ, if yes, step S712 is performed, and if no, step S726 is performed. In step S712, K_targ is assigned to K_cur. Step S714, calculating a code rate Lambda corresponding to K_cur. Step S716, updating the maximum allowed code rate to Lambda, and then performing step S726. In step S718, the counter C value is incremented by one. In step S720, it is determined whether the counter value is equal to the set count threshold P. If yes, step S722 is performed, and if no, step S726 is performed. Step S722, it is judged whether K_cur is smaller than K_max, if yes, step S724 is performed, and if no, step S726 is performed. In step S724, K_up is assigned to K_cur. In step S726, the counter is stopped, and the current transmission parameter is maintained. Corresponding to the above-mentioned functional modules shown in FIG. 5, FIG. 8 is a flowchart of a working method of a downlink feedback packet time interval statistic module according to an embodiment of the present invention. As shown in FIG. 8, the method includes the following steps (step S802- Step S818): Step S802: After receiving the downlink feedback packet, initially, set the count value m to 0. In step S804, m is incremented by 1. In step S806, it is judged whether m is greater than the set count threshold value M. If yes, step S808 is performed, and if no, step S812 is performed. Step S808, calculating an average response time T_est = T total IM of the feedback packet. Step S810, updating the Timer_resp duration T_cur to T_est, and then performing step S818. Step S812, recording the feedback packet response time T_new. Step S814, recording the feedback packet total response time T_total = T total + T new - T_old. In step S816, the current feedback packet response time is saved as the last feedback packet response time T_old = T_new. In step S818, the process ends. Corresponding to the above various functional modules shown in FIG. 5, FIG. 9 is a flowchart of a working method of the delay timer management module according to an embodiment of the present invention. As shown in FIG. 9, the method includes the following steps (step S902-step) S916): Step S902: Acquire TEBS information, determine whether TEBS is equal to 0, if yes, execute step S904, if no, perform step S916. Step S904, starting the delay timer Timer_resp, the duration is T_cur. Step S906, determining whether the timer expires, if yes, executing step S914, and if no, executing step S908. In step S908, it is determined whether the TEBS is greater than 0. If yes, step S910 is performed, and if no, step S912 is performed. In step S910, the Timer_resp is restarted, and the duration is T_cur. Step S912, setting the TEBS to a non-zero value of at least one RLC PDU, and then performing step S904. In step S914, the TEBS is set to the actual TEBS value. In step S916, the flow ends. As can be seen from the above description, the embodiment of the present invention aims to reduce the data transmission error rate by the UE autonomously adjusting the uplink maximum code rate constraint and indirectly reducing the transmission block size for the data transmission characteristics of the HSPA/HSPA+. . Further increase the data transmission rate by reducing the probability of data transmission errors. In the downlink data transmission process, by evaluating the time interval of the uplink feedback packet, delay reporting TEBS=0, ensuring that the uplink feedback packet is sent in time, reducing the rate reduction caused by the sliding of the upper window and the probability of instability, and achieving the improvement. The purpose of stabilizing the downlink transmission rate. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. A method for transmitting uplink data, comprising:

The terminal collects a bit error rate of uplink data transmission in the current period;

The terminal determines whether the error rate is greater than a set error rate threshold;

If yes, the terminal sets a transmission parameter according to an average transmission rate and a target transmission rate in the current period;

If not, the terminal determines whether the error rate of the consecutive specified number of periods including the current period is less than or equal to the error rate threshold, and if both are less than or equal to the terminal, the terminal according to the current The average transmission block value of the cycle and the transmission block threshold set the transmission parameters;

The terminal performs subsequent uplink data transmission according to the set transmission parameter.

The method according to claim 1, wherein the setting, by the terminal, the transmission parameter according to the average transmission rate and the target transmission rate in the current period includes:

Obtaining, by the terminal, an average transmission block value of the current period;

The terminal calculates an average transmission rate of the current period according to the average transmission block value and the error rate;

The terminal calculates a target transmission rate according to the set target transmission block value and the error rate threshold; the terminal compares the relationship between the average transmission rate and the target transmission rate, and sets a transmission parameter according to the comparison result. .

The method according to claim 2, wherein the setting, by the terminal, the transmission parameters according to the comparison result includes:

If the average transmission rate is greater than or equal to the target transmission rate, the terminal maintains the current transmission parameter unchanged;

If the average transmission rate is less than the target transmission rate, the terminal uses the target transmission block value as a transmission block value used for subsequent uplink data, and updates the code rate of the uplink transmission according to the target transmission block value.

The method according to claim 1, wherein the terminal determining whether the error rate of the consecutive specified number of cycles including the current period is less than or equal to the error rate threshold includes:

The terminal turns on a period counter;

The terminal calculates whether the error rate of the next period of the current period is less than or equal to the error rate threshold. If yes, the value of the period counter is incremented by 1, and statistics are continued until the period counter is The value is the specified number; if not, the cycle counter is stopped.

The method according to claim 1, wherein the setting, by the terminal, the transmission parameter according to the average transmission block value and the transmission block threshold of the current period comprises:

The terminal compares the average transmission block value of the current period with the size of the transport block threshold, and sets a transmission parameter according to the result of the comparison.

The method according to claim 5, wherein the setting, by the terminal, the transmission parameters according to the comparison result includes:

If the average transmission block value of the current period is greater than or equal to the transmission block threshold, the terminal maintains the current transmission parameter unchanged;

If the average transmission block value of the current period is smaller than the transport block threshold, the terminal increases the average transport block value by a specified value, and sets a transport block value used by subsequent uplink data to be the up-converted average transport block value. And updating the code rate of the uplink transmission according to the up-converted average transport block value.

7. A method for transmitting uplink scheduling information, including:

The terminal reads the enhanced dedicated channel E-DCH total buffer occupancy state TEBS;

If the TEBS=0, the terminal detects whether the TEBS read within the specified duration is continued. ;

If the detected TEBS is greater than 0 within the specified duration, the terminal sets the TEBS in the scheduling information reported to the network side to be a non-zero value;

If it is detected that the TEBS continues to be 0 in the specified duration, the terminal sets the TEBS in the scheduling information reported to the network side to be 0;

The terminal sends the scheduling information when the scheduling report time arrives, where the scheduling information carries the set TEBS. The method according to claim 7, wherein the specified duration is equal to the timing duration of the timer, and the setting of the timing duration includes:

The terminal sets an initial value of the timing duration according to a state of the radio link control layer; the terminal counts an average response time interval of consecutively designating downlink data feedback packets; if the average response time interval is less than or equal to the initial a value, the terminal setting the timing duration is equal to the initial value;

If the average response time interval is greater than the initial value, the terminal sets the timing duration to be equal to the average response time interval. A transmission device for uplink data, comprising:

The bit error rate statistics module is configured to calculate a bit error rate of the uplink data transmission in the current period; the first bit error rate determining module is configured to determine whether the bit error rate calculated by the bit error rate statistics module is greater than a set Bit error rate threshold;

a first transmission parameter setting module, configured to set a transmission parameter according to an average transmission rate and a target transmission rate in the current period, if the determination result of the first error rate determination module is YES;

The second error rate determination module is configured to determine, if the determination result of the first error rate determination module is negative, whether the error rate of the consecutive designated number of cycles including the current period is average Less than or equal to the error rate threshold;

a second transmission parameter setting module, configured to: when the determination result of the second error rate determination module is YES, set a transmission parameter according to an average transmission block value and a transmission block threshold of the current period; an uplink data transmission module And setting, according to the transmission parameter set by the first transmission parameter setting module or the second transmission parameter setting module, to perform subsequent uplink data transmission. The apparatus according to claim 9, wherein the first transmission parameter setting module comprises: an average transmission block value acquisition unit configured to acquire an average transmission block value of the current period; and an average transmission rate calculation unit, configured to Calculating, by the average transmission block value acquiring unit, the average transmission block value and the error rate to calculate an average transmission rate of the current period;

a target transmission rate calculation unit, configured to calculate a target transmission rate according to the set target transmission block value and the error rate threshold; a transmission rate comparison unit configured to compare a magnitude relationship between the average transmission rate calculated by the average transmission rate calculation unit and the target transmission rate calculated by the target transmission rate calculation unit;

The transmission parameter setting unit is set to set the transmission parameter according to the result of the comparison by the transmission rate comparison unit.

The device according to claim 10, wherein the transmission parameter setting unit comprises: a first setting subunit, configured to be that the comparison result of the transmission rate comparing unit is that the average transmission rate is greater than or equal to the In the case of the target transmission rate, the current transmission parameter is maintained unchanged; the second setting subunit is set to be in a case where the comparison result of the transmission rate comparison unit is that the average transmission rate is smaller than the target transmission rate, The target transport block value is used as a transport block value for subsequent uplink data, and the code rate of the uplink transmission is updated according to the target transport block value.

The device according to claim 9, wherein the second error rate determination module comprises: a counter on unit, configured to turn on a period counter;

a statistical unit, configured to calculate whether the error rate of the next period of the current period is less than or equal to the error rate threshold;

a processing unit, configured to: when the statistical result of the statistical unit is that the error rate of the next period of the current period is less than or equal to the error rate threshold, the value of the period counter is increased by 1, and Continue counting until the value of the period counter is the specified number;

The counter stop unit is configured to stop the cycle counter if the statistical result of the statistical unit is that the error rate of the next cycle of the current cycle is greater than the error rate threshold.

The device according to claim 9, wherein the second transmission parameter setting module comprises:

An average transport block value obtaining unit, configured to acquire an average transport block value of the current period; a comparing unit, configured to compare an average transport block value of the current period acquired by the average transport block value acquiring unit with the transport block The size relationship of the threshold;

The setting unit is configured to set the transmission parameter according to the result of the comparison unit comparison.

The device according to claim 13, wherein the setting unit comprises: a third setting subunit, configured to: when the comparison result of the comparing unit is that the average transmission block value of the current period is greater than or equal to the In the case of a transport block threshold, the current transmission parameters are maintained unchanged; a fourth setting subunit, configured to: when the comparison result of the comparing unit is that the average transmission block value of the current period is less than the transmission block threshold, increase the average transmission block value by a specified value, and set a subsequent uplink The transport block used by the data is the up-converted average transport block value, and the code rate of the uplink transmission is updated according to the up-converted average transport block value.

15. A transmission device for uplink scheduling information, comprising:

a reading module, configured to read a total cache occupancy state TEBS of the enhanced dedicated channel E-DCH; and a detecting module configured to read within a specified duration when the TEBS=0 read by the reading module Whether the TEBS continues to be 0;

a first setting module, configured to: when the detecting module detects that the TEBS is greater than 0 within the specified duration, set the TEBS in the scheduling information reported to the network side to be a non-zero value;

a second setting module, configured to detect that the TEBS continues to be 0 in the specified duration, and set the TEBS in the scheduling information reported to the network side to be 0;

The scheduling information sending module is configured to send the scheduling information when the scheduling reporting time arrives, where the scheduling information carries the set TEBS.