WO2015117449A1 - 提高网络性能的方法、用户设备及存储介质 - Google Patents

提高网络性能的方法、用户设备及存储介质 Download PDF

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Publication number
WO2015117449A1
WO2015117449A1 PCT/CN2014/091157 CN2014091157W WO2015117449A1 WO 2015117449 A1 WO2015117449 A1 WO 2015117449A1 CN 2014091157 W CN2014091157 W CN 2014091157W WO 2015117449 A1 WO2015117449 A1 WO 2015117449A1
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Prior art keywords
pdsch
cqi
carriers
carrier
sinr
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PCT/CN2014/091157
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English (en)
French (fr)
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朱广卿
冉晓龙
潘磊
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深圳市中兴微电子技术有限公司
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Priority to EP14881737.2A priority Critical patent/EP3163963B1/en
Priority to KR1020177003931A priority patent/KR101911652B1/ko
Priority to JP2017503940A priority patent/JP6422564B2/ja
Priority to US15/327,511 priority patent/US10009779B2/en
Publication of WO2015117449A1 publication Critical patent/WO2015117449A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/02—Arrangements for optimising operational condition
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/006—Quality of the received signal, e.g. BER, SNR, water filling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/08—Testing, supervising or monitoring using real traffic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to a data processing technology in communication, and in particular, to a method for improving network performance, a user equipment (User Equipment, UE), and a storage medium.
  • UE User Equipment
  • the UE performs multi-carrier high-speed in the connected state.
  • the network side informs the UE that the HSDPA downlink data service can be performed on multiple carriers at the same time through the reconfiguration message; the UE performs high-speed physical downlink sharing according to the multiple carriers.
  • the channel quality indicator (CQI) of each channel is calculated and reported to the network side, and the network side firstly reports the CQI reported by the UE according to the channel quality of the channel (High Speed Physical Downlink Shared Channel, HS-PDSCH).
  • CQI channel quality indicator
  • HSDPA parameter selection including transmission block size (TB SIZE), HS-PDSCH code channel number, modulation mode, and power is performed on each carrier; the network side further selects the UE on each carrier according to the selected HSDPA parameter.
  • the UE is scheduled in priority order.
  • the network side selects the TB SIZE, the HS-PDSCH code channel number, the modulation mode, and the power on each carrier independently; since the attenuation of the multi-carrier wireless propagation channel is relatively Independent, and the relative priorities of the UEs on multiple carriers are different, resulting in a large difference in HS-PDSCH data power of different carrier allocations; in an extreme case, even all of fifteen code channels on one carrier in some subframes may occur.
  • the HS-PDSCH data is scheduled to the UE, while the other carrier does not have HS-PDSCH data scheduled for the UE.
  • the HS-PDSCH power difference conference of different carrier allocations has the following adverse effects; first, when the HS-PDSCH power difference of different carrier allocations is large, the working multiple carriers are between The Adjacent Channel Selectivity (ACS) capability is low, which causes the low-power carrier signal to be blocked and interferes with channel quality. Secondly, when the terminal separates the carrier digital signal, it affects the automatic gain control (AGG).
  • AAG automatic gain control
  • the performance of the loop algorithm the baseband signal before entering the analog-to-digital converter can not be stabilized in the appropriate range, the signal saturation on the high power carrier occurs, the signal resolution on the low power carrier is insufficient; third, by the first type Under the influence of the situation and the second case, the channel quality of the low-power carrier signal may become worse and worse, and even the hybrid automatic repeat request (HARQ) retransmission may still be solved incorrectly, affecting the protocol.
  • Medium Media Access Control (MAC) layer and radio link control (Radio Link Control) RLC) layer packets sliding window processing, causing accumulation downlink HSDPA downlink data, downlink HSDPA reduced rate, thereby reducing the performance of the link received downlink HSDPA network.
  • the relative priority calculation formula in the HSDPA scheduling algorithm is:
  • RelativePriotity WeightofSPI*Rate*WeightofDelay/(1+HistoryFlux)(1);
  • WeightofSPI indicates the priority of the terminal scheduling configured by the NodeB Application Part (NBAP) signaling, which is a fixed value;
  • the WeightofDelay indicates that the voice over Internet protocol (VoIP) and the bearer are carried over the network protocol.
  • VoIP voice over Internet protocol
  • the delay weighting factor of CS Voice Service over HSPA on high-speed packet access is not considered here;
  • Rate w1(CQI_n)*TBSIZE(CQI_n) (2);
  • HistoryFlux(n) HistoryFlux(n-1)*0.96+TBSIZE1+TBSIZE2 (3);
  • TBSIZE1 and TBSIZE2 are transport block sizes scheduled by the dual-connected HSDPA user primary and secondary carriers; As can be seen from the above, if the priority of the UE on the carrier is increased, the CQI reported by the UE needs to be increased.
  • embodiments of the present invention are expected to provide a method, a UE, and a storage medium for improving network performance, which can improve downlink receiving performance of a multi-carrier HSDPA network.
  • An embodiment of the present invention provides a method for improving network performance, including: acquiring, by a UE, CQIs of HS-PDSCHs on each carrier according to measured SINRs of HS-PDSCHs on two or more carriers; determining that all carriers have When the difference between the SINR of the HS-PDSCH on one or more carriers and the maximum SINR of the HS-PDSCH on all carriers is greater than the first threshold, the CQI of the HS-PDSCH on the one or more carriers is updated, and all carriers are on the HS.
  • the CQI of the PDSCH is reported to the network side; the CQI is used for scheduling the UE by the network side.
  • the method further includes: the UE measures a received signal strength indicator RSSI of two or more carriers; and determines a difference between an RSSI of one or more carriers in all carriers and a maximum RSSI of all carriers.
  • the selection factor is updated; the selection factor is used by the UE to filter the received carrier signal.
  • the UE acquires the CQI of the HS-PDSCH on each carrier according to the measured SINR of the HS-PDSCH on the two or more carriers, including: the SINR pre-stored by the UE in itself.
  • the CQI corresponding to each SINR is queried in the CQI mapping table, and the CQI of the HS-PDSCH on each carrier is obtained.
  • the CQI of the HS-PDSCH on the updated carrier is the sum of the CQI of the HS-PDSCH on the original carrier and the CQI of the maximum CQI of the HS-PDSCH on all carriers and the CQI of the HS-PDSCH on the original carrier.
  • the updating the selection factor comprises: increasing the selection factor by one bit.
  • An embodiment of the present invention further provides a UE, where the UE includes: a measurement module, an acquisition module, a first comparison module, a first update module, and a reporting module; wherein
  • the acquiring module is configured to acquire CQI of each carrier according to the SINR of the HS-PDSCH on two or more carriers measured by the measurement module, respectively;
  • the first comparison module is configured to compare a difference between an SINR of an HS-PDSCH on each carrier and a maximum SINR of an HS-PDSCH on all carriers with a first threshold;
  • the first update module is configured to: when the first comparison module determines that the difference between the SINR of the HS-PDSCH on one or more carriers and the maximum SINR of the HS-PDSCH on all carriers is greater than the first threshold Updating the CQI of the HS-PDSCH on the one or more carriers;
  • the reporting module is configured to report the CQI of the HS-PDSCH on all carriers to the network side; the CQI is used by the network side to schedule the UE.
  • the UE further includes: a second comparison module and a second update module; wherein
  • the measuring module is further configured to measure RSSI of two or more carriers
  • the second comparison module is configured to compare a difference between an RSSI of each carrier and a largest RSSI of all carriers and a second threshold;
  • the second update module is configured to: when the second comparison module determines that the difference between the RSSI of one or more carriers of all carriers and the largest RSSI of all carriers is greater than a second threshold, updating the selection factor;
  • the selection bit factor is used by the UE to filter the received carrier signal.
  • the UE further includes a storage module configured to store a SINR-CQI mapping table
  • the acquiring module is configured to query the CQI corresponding to each SINR in the SINR-CQI mapping table stored in the storage module in advance, and acquire the CQI of the HS-PDSCH on each carrier.
  • the CQI of the HS-PDSCH on the updated carrier is the sum of the CQI of the HS-PDSCH on the original carrier and the CQI of the maximum CQI of the HS-PDSCH on all carriers and the CQI of the HS-PDSCH on the original carrier.
  • the second update module is configured to increase the selection factor by one bit.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program for performing the above method for improving network performance in the embodiment of the present invention.
  • the UE measures the received signal strength indication RSSI of two or more carriers, and determines the RSSI of all one or more carriers in all carriers and all carriers.
  • the selection factor is updated; the UE filters the carrier according to the selection factor; the UE measures the SINR of the HS-PDSCH on each of the filtered carriers, and according to the measured respective carriers.
  • the SINR of the upper HS-PDSCH acquires the CQI of each carrier, and determines that the difference between the SINR of the HS-PDSCH on one or more carriers in all carriers and the maximum SINR of the HS-PDSCH on all carriers is greater than the first threshold, and is updated.
  • the CQI of the HS-PDSCH on the one or more carriers increases the CQI, and reports the CQI of the HS-PDSCH on all the carriers to the network side; the network side performs HS-PDSCH data scheduling on the UE according to the CQI reported by the UE; By comparing the acquired CQI of the HS-PDSCH on each carrier with the first threshold, updating the CQI according to the comparison result increases the CQI, which not only improves the relative priority of the UE scheduling, but also improves the relative priority of the UE.
  • the HS-PDSCH data power allocated by the network side can also be improved; by comparing the RSSI of the measured two or more carriers with the second threshold, updating the selection factor according to the comparison result increases the selection factor, Enhance the digital baseband signal strength on the low-power carrier; thereby, it can reduce the adjacent channel interference of adjacent carriers, enhance the performance of the AGC loop algorithm, reduce the downlink HSDPA link data accumulation caused by multiple retransmissions, and increase the HSDPA network.
  • the downlink transmission rate improves the user experience.
  • FIG. 1 is a schematic diagram of an implementation process of separating a two-carrier digital signal by a UE
  • FIG. 2 is a schematic flowchart of a basic process of a method for improving network performance according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a detailed process of a method for improving network performance according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a structure of a UE according to an embodiment of the present invention.
  • the UE measures the received signal strength indication RSSI of two or more carriers, and determines that the difference between the RSSI of one or more carriers in all carriers and the largest RSSI of all carriers is greater than a second threshold. Updating the selection factor; the UE filters the carrier according to the selection factor; the UE acquires the CQI of each carrier according to the measured SINR of the HS-PDSCH on each carrier, and determines that the HS-PDSCH is on one or more carriers in all carriers.
  • the network side When the difference between the SINR and the maximum SINR of the HS-PDSCH on all carriers is greater than the first threshold, updating the CQI of the HS-PDSCH on the one or more carriers increases the CQI, and reports the CQI of the HS-PDSCH on all carriers.
  • the network side performs HS-PDSCH data scheduling on the UE according to the CQI reported by the UE.
  • the first threshold is 3 dB, and when the UE performs the downlink multi-carrier HSDPA service in the connected state, each additional carrier is added on the basis of the dual carrier.
  • the first threshold is increased by 0.3 dB; the second threshold is adjusted according to a fixed-point bit value input through the UE.
  • the UE introduces a root raised cosine based on a Finite Impulse Response (FIR) structure when the UE performs in-band continuous dual-carrier HSDPA service in the connected state.
  • the root Raised Cosine (RRC) filtering module separates the two-carrier digital signals.
  • the RF RX path processes a 10M bandwidth signal, and the signals on the first carrier and the second carrier pass through the RF filtering module.
  • the analog baseband filter module is filtered, and then the analog baseband signal AGC gain is adjusted so that the analog baseband signal before entering the analog-to-digital converter (ADC) is in the dynamic range of the receive path.
  • ADC analog-to-digital converter
  • the ACS processing is mainly implemented by the radio frequency part, and the RRC filter based on the FIR structure of the digital domain only implements a small portion of the ACS. Therefore, for a scenario of continuous multi-carrier or non-contiguous multi-carrier HSDPA in the bandwidth, the ACS processing of each carrier can only be implemented by the FIR structure-based RRC filter of the digital domain, causing the ACS capability to decrease, eventually leading to HSDPA. The downlink reception performance of the network is degraded.
  • the basic processing flow of the method for improving network performance on the UE side in the embodiment of the present invention, as shown in FIG. 2, includes the following steps:
  • Step 101 The UE acquires the CQI of the HS-PDSCH on each carrier according to the measured SINR of the HS-PDSCH on the two or more carriers.
  • the UE measures the total energy of the wanted signal on each carrier and the total energy of the interference, calculates the ratio of the total energy of the useful signal to the total energy of the interference, and obtains the SINR of the HS-PDSCH on each carrier;
  • the UE queries the CQI corresponding to each SINR in the SINR-CQI mapping table stored in its own, and acquires the CQI of the HS-PDSCH on each carrier.
  • Step 102 When it is determined that the difference between the SINR of the HS-PDSCH and the maximum SINR of the HS-PDSCH on all carriers is greater than the first threshold, the HS-PDSCH on the one or more carriers is updated.
  • CQI CQI
  • the CQI of the HS-PDSCH on the updated carrier is the sum of the CQI of the HS-PDSCH on the original carrier and the CQI of the maximum CQI of the HS-PDSCH on all carriers and the CQI of the HS-PDSCH on the original carrier;
  • the CQI of the upper HS-PDSCH is CQI(X)
  • the CQI of the HS-PDSCH on the Xth carrier after the update is CQI'(X)
  • the maximum CQI of the HS-PDSCH on all carriers is CQI(max)
  • CQI'(X) ) CQI(X)+[CQI(max)-CQI(X)]/2;
  • the first threshold is 3 dB when the UE performs the downlink dual-carrier HSDPA service in the connected state, and the UE performs the downlink multi-carrier HSDPA service in the connected state, and is based on the dual carrier.
  • the first threshold is increased by 0.3 dB for each additional carrier; that is, when the UE performs the downlink three-carrier HSDPA service in the connected state, the first threshold is 3.3 dB; when the UE performs the downlink four-carrier HSDPA service in the connected state, A threshold is 3.6 dB, and so on.
  • Step 103 Report the CQI of the HS-PDSCH on all carriers to the network side.
  • the CQI is used by the network side to schedule the UE.
  • the method further includes:
  • the UE measures the received signal strength indication RSSI of two or more carriers; and determines that the difference between the RSSI of one or more carriers in all carriers and the largest RSSI of all carriers is greater than a second threshold, updating the selection factor;
  • the selection bit factor is used by the UE to filter the received carrier signal;
  • the updated selection factor is increased by 1 bit based on the original selection factor
  • the second threshold is adjusted according to the fixed-point bit value input by the UE; the number of fixed-point bits output by the UE after filtering the carrier signal is 12, and the number of fixed-point bits input by the UE is 8 as an example, and the second threshold is set to 3 dB;
  • the second threshold is reduced by 0.3 dB for every 1 bit of the number of fixed-point bits input by the UE; the second threshold is increased by 0.3 dB for each additional bit of the number of fixed-point bits input by the UE; that is, the number of fixed-point bits output by the UE after filtering the carrier signal is 12, when the number of fixed-point bits input by the UE is 7, the second threshold is 2.7 dB; the number of fixed-point bits output by the UE after filtering the carrier signal is 12, and when the number of fixed-point bits input by the UE is 9, the second threshold is 3.3 dB. And so on.
  • the detailed processing procedure of the method for improving the network performance in the embodiment of the present invention includes the following steps:
  • Step 201 The UE measures RSSI of two carriers.
  • the RSSI of the first carrier is measured as RSSI1
  • the RSSI of the second carrier is RSSI2
  • the RSSI1 is greater than RSSI2
  • Step 202 When the UE determines that the difference between RSSI1 and RSSI2 is greater than the second threshold, the UE updates the location. factor;
  • the selection factor is used by the UE to filter the received carrier signal
  • the update selection factor is specifically: increasing the selection factor by 1 bit;
  • the second threshold is adjusted according to the fixed-point bit value input by the UE; the number of fixed-point bits output by the UE after filtering the carrier signal is 12, the number of fixed-point bits input by the UE is 8 and the second threshold is set to 3 dB; UE input The second threshold is reduced by 0.3 dB for every 1 bit of the fixed-point number of bits; the second threshold is increased by 0.3 dB for every 1 bit of the fixed-point number of bits input by the UE; that is, the number of fixed-point bits output by the UE after filtering the carrier signal is 12, When the number of fixed-point bits input by the UE is 7, the second threshold is 2.7 dB; the number of fixed-point bits output by the UE after filtering the carrier signal is 12, and when the number of fixed-point bits input by the UE is 9, the second threshold is 3.3 dB. analogy.
  • Step 203 The UE acquires the CQI of the HS-PDSCH on each carrier according to the measured SINR of the HS-PDSCH on the two carriers.
  • the UE measures the total energy of the useful signal and the total energy of the interference on each carrier, calculates the ratio of the total energy of the useful signal to the total energy of the interference, and obtains the SINR of the HS-PDSCH on the first carrier as SINR1, and the second carrier.
  • the SINR of the upper HS-PDSCH is SINR2, and the SINR1 is greater than SINR2;
  • the UE queries the CQI1 corresponding to SINR1 and the CQI2 corresponding to SINR2 in the SINR-CQI mapping table stored in advance in the UE.
  • Step 204 The UE determines that the difference between the SINR1 of the HS-PDSCH on the first carrier and the SINR2 of the HS-PDSCH on the second carrier is greater than the first threshold, and updates the CQI2 of the HS-PDSCH on the second carrier.
  • the first threshold is 3 dB
  • the first threshold is 3.6 dB, and so on.
  • Step 205 reporting CQI1 and CQI2' to the network side
  • the CQI1 and the CQI2' are used by the network side to schedule the UE on the first carrier and the second carrier, respectively.
  • the embodiment of the present invention further provides a UE, and the component structure of the UE, as shown in FIG. 4, includes: a measurement module 11, an obtaining module 12, a first comparison module 13, and a first Updating module 14 and reporting module 15; wherein
  • the acquiring module 12 is configured to acquire the CQI of each carrier according to the SINR of the HS-PDSCH on the two or more carriers measured by the measurement module 11 respectively;
  • the first comparison module 13 is configured to compare a difference between an SINR of an HS-PDSCH on each carrier and a maximum SINR of an HS-PDSCH on all carriers with a first threshold;
  • the first threshold is 3 dB
  • the first threshold is 3.6 dB
  • the first threshold is 3 dB
  • the first threshold is 3.6 dB
  • the first update module 14 is configured to determine, by the first comparison module, that a difference between an SINR of an HS-PDSCH on one or more carriers of all carriers and a maximum SINR of an HS-PDSCH on all carriers is greater than a first threshold. Updating the CQI of the HS-PDSCH on the one or more carriers;
  • the CQI of the HS-PDSCH on the updated carrier is the sum of the CQI of the HS-PDSCH on the original carrier and the CQI of the maximum CQI of the HS-PDSCH on all carriers and the CQI of the HS-PDSCH on the original carrier;
  • the CQI of the upper HS-PDSCH is CQI(X)
  • the CQI of the HS-PDSCH on the Xth carrier after update is CQI'(X)
  • the reporting module 15 is configured to report the CQI of the HS-PDSCH on all carriers to the network side; the CQI is used by the network side to schedule the UE.
  • the UE further includes: a second comparison module 16 and a second update module 17;
  • the measuring module 11 is further configured to measure RSSI of two or more carriers
  • the second comparison module 16 is configured to compare the difference between the RSSI of each carrier and the largest RSSI of all carriers and the second threshold;
  • the second threshold is adjusted according to the fixed-point bit value input by the UE; the number of fixed-point bits output by the UE after filtering the carrier signal is 12, and the number of fixed-point bits input by the UE is 8 as an example, and the second threshold is set to 3 dB; The second threshold is reduced by 0.3 dB for every 1 bit of the fixed-point number input by the UE after filtering the carrier signal; the second threshold is increased by 0.3 dB for each 1 bit of the fixed-point number of the receiver input signal; that is, the UE-to-carrier
  • the number of fixed-point bits output after signal filtering is 12, when the number of fixed-point bits input by the UE is 7, the second threshold is 2.7 dB; the number of fixed-point bits output by the UE after filtering the carrier signal is 12, and the number of fixed-point bits input by the UE is 9.
  • the second threshold is 3.3 dB, and so on.
  • the second update module 17 is configured to: when the second comparison module determines that the difference between the RSSI of one or more carriers of all carriers and the largest RSSI of all carriers is greater than a second threshold, updating the selection factor; The selection factor is used by the UE to filter the received carrier.
  • the UE further includes a storage module 18 configured to store a SINR-CQI mapping table
  • the acquiring module 12 is configured to query the CQI corresponding to each SINR in the SINR-CQI mapping table stored in the storage module 18 in advance, and obtain the CQI of the HS-PDSCH on each carrier.
  • the second update module is configured to increase the selection factor by one bit.
  • the storage module 18 in the UE may be implemented by a storage device, such as a hard disk; the measurement module 11, the acquisition module 12, the first comparison module 13, the first update module 14, the reporting module 15, and the second comparison.
  • Both the module 16 and the second update module 17 can be implemented by a processor, but can also be implemented by a specific logic circuit; wherein the processor can be a central processing unit (CPU), a microprocessor (MPU), and digital signal processing. (DSP) or Field Programmable Gate Array (FPGA).
  • CPU central processing unit
  • MPU microprocessor
  • DSP digital signal processing.
  • FPGA Field Programmable Gate Array
  • the above method for improving network performance is implemented in the form of a software function module, and is sold or used as a stand-alone product, it may also be stored in a computer readable storage medium.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program for performing the foregoing method for improving network performance in the embodiment of the present invention.
  • the method, device, and storage medium for improving network performance in the embodiments of the present invention are applicable to high-speed downlink packet access.

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Abstract

本发明公开了一种提高网络性能的方法，终端(UE)根据测量得到的两个或两个以上载波上高速物理下行共享信道(HS-PDSCH)的信干扰比(SINR)分别获取每个载波上HS-PDSCH的信道质量指示(CQI)；确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI，将所有载波上HS-PDSCH的CQI上报至网络侧；所述CQI用于网络侧对UE进行调度。本发明还同时公开了一种UE及存储介质。

Description

提高网络性能的方法、用户设备及存储介质 技术领域
本发明涉及通信中的数据处理技术，尤其涉及一种提高网络性能的方法、用户设备(User Equipment，UE)及存储介质。
背景技术
在宽带码分多址(Wideband Code Division Multiple Access，WCDMA)网络和时分同步码分多址(Time-Division-Synchronous Code Division Multiple Access，TD-SCDMA)网络中，UE在连接态下进行多载波高速下行分组接入(High Speed Downlink Packet Access，HSDPA)业务时，网络侧通过重配消息通知UE可以同时在多个载波上进行HSDPA下行数据业务；UE根据在多个载波上接收的高速物理下行共享信道(High Speed Physical Downlink Shared Channel，HS-PDSCH)的信道质量分别计算每个载波上的信道质量指示(Channel Quality Indicator，CQI)，并上报至网络侧；网络侧先根据UE上报的CQI分别在每个载波上进行包括传输块大小(Transmission Block SIZE，TB SIZE)、HS-PDSCH码道数、调制方式和功率等HSDPA参数选择；网络侧再根据选择的HSDPA参数，按照每个载波上UE的优先级顺序调度UE。
由于UE对于每个载波上的CQI是独立计算的，网络侧在每个载波上选择TB SIZE、HS-PDSCH码道数、调制方式和功率也是独立进行的；由于多载波无线传播信道的衰减相对独立，且UE在多个载波上的相对优先级不同，导致不同载波分配的HS-PDSCH数据功率差异大；极端情况下，甚至会出现某些子帧中一个载波上十五个码道的所有HS-PDSCH数据都调度给UE，而另一个载波上却没有HS-PDSCH数据调度给UE。
UE在连接态下进行下行多载波HSDPA业务时，不同载波分配的HS-PDSCH功率差异大会产生以下不利影响；第一，不同载波分配的HS-PDSCH功率差异大时，工作的多载波之间的邻道选择性(Adjacent Channel Selectivity，ACS)能力低，导致低功率载波信号被阻塞干扰，降低信道质量；第二，在终端对载波数字信号进行分离时，影响自动增益控制(Automatic Gain Control，AGC)环路算法的性能，导致进入模数转换器之前的基带信号无法稳定在合适的范围，出现高功率载波上信号饱和、低功率载波上信号分辨率不够的情况；第三，受第一种情况和第二种情况的影响，低功率载波信号的信道质量可能会越来越差，甚至出现多次混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)重传仍然解不对的情况，影响协议栈媒体介入控制(Medium Access Control，MAC)层和无线链路控制(Radio Link Control，RLC)层数据包的滑窗处理，引起下行HSDPA链路数据堆积，降低下行HSDPA速率，进而降低HSDPA网络的下行链路接收性能。
若要减小两个载波上同一个UE的HS-PDSCH数据的功率差，需提高低功率载波上的UE优先级；HSDPA调度算法中相对优先级计算公式为：
RelativePriotity＝WeightofSPI*Rate*WeightofDelay/(1+HistoryFlux)(1)；其中，
WeightofSPI表示基站应用部分协议(NodeB Application Part，NBAP)信令配置的终端调度的优先级，为一固定值；WeightofDelay表示针对承载在网络协议上的语音业务(Voice over Internet protocol，VoIP)和承载在高速分组接入上的电路交换域语音业务(CS Voice Service over HSPA)的时延权重因子，这里不做考虑；
Rate＝w1(CQI_n)*TBSIZE(CQI_n)                          (2)；
HistoryFlux(n)＝HistoryFlux(n-1)*0.96+TBSIZE1+TBSIZE2  (3)；
TBSIZE1、TBSIZE2为双连接HSDPA用户主辅载波调度的传输块大小； 从上述可以看出，若提高载波上的UE优先级，需提高UE上报的CQI。
发明内容
有鉴于此，本发明实施例期望提供一种提高网络性能的方法、UE及存储介质，能够提高多载波HSDPA网络的下行链路接收性能。
本发明实施例的技术方案是这样实现的：
本发明实施例提供一种提高网络性能的方法，包括：UE根据测量得到的两个或两个以上载波上HS-PDSCH的SINR分别获取每个载波上HS-PDSCH的CQI；确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI，将所有载波上HS-PDSCH的CQI上报至网络侧；所述CQI用于网络侧对UE进行调度。
在一实施例中，所述方法还包括：UE测量两个或两个以上载波的接收信号强度指示RSSI；确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；所述选位因子用于UE对接收的载波信号进行滤波。
在一实施例中，所述UE根据测量得到的两个或两个以上载波上HS-PDSCH的SINR分别获取每个载波上HS-PDSCH的CQI，包括：所述UE在预先存储于自身的SINR-CQI映射表中查询每个SINR对应的CQI，获取每个载波上HS-PDSCH的CQI。
在一实施例中，更新后载波上HS-PDSCH的CQI为原载波上HS-PDSCH的CQI和所有载波上HS-PDSCH的最大CQI差值的一半与原载波上HS-PDSCH的CQI之和。
在一实施例中，所述更新选位因子，包括：将所述选位因子提高一个比特位。
本发明实施例还提供一种UE，所述UE包括：测量模块、获取模块、 第一比较模块、第一更新模块和上报模块；其中，
所述获取模块，配置为根据测量模块测量得到的两个或两个以上载波上HS-PDSCH的SINR分别获取每个载波的CQI；
所述第一比较模块，配置为比较各个载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值与第一阈值的大小；
所述第一更新模块，配置为在所述第一比较模块确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI；
所述上报模块，配置为将所有载波上HS-PDSCH的CQI上报至网络侧；所述CQI用于网络侧对UE进行调度。
在一实施例中，所述UE还包括：第二比较模块和第二更新模块；其中，
所述测量模块，还配置为测量两个或两个以上载波的RSSI；
所述第二比较模块，配置为比较各个载波的RSSI与所有载波中最大的RSSI的差值与第二阈值的大小；
所述第二更新模块，配置为在所述第二比较模块确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；所述选位因子用于UE对接收的载波信号进行滤波。
在一实施例中，所述UE还包括存储模块，配置为存储SINR-CQI映射表；
相应的，所述获取模块，配置为在预先存储于存储模块内的SINR-CQI映射表中查询每个SINR对应的CQI，获取每个载波上HS-PDSCH的CQI。
在一实施例中，更新后载波上HS-PDSCH的CQI为原载波上HS-PDSCH的CQI和所有载波上HS-PDSCH的最大CQI差值的一半与原载波上HS-PDSCH的CQI之和。
在一实施例中，所述第二更新模块，配置为将所述选位因子提高一个比特位。
本发明实施例还提供了一种计算机存储介质，所述计算机存储介质存储有计算机程序，该计算机程序用于执行本发明实施例的上述提高网络性能的方法。
本发明实施例所提供的提高网络性能的方法、UE及存储介质，UE测量两个或两个以上载波的接收信号强度指示RSSI，确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；UE根据所述选位因子对载波进行滤波；UE测量滤波后的各个载波上HS-PDSCH的SINR，并根据测量得到的各个载波上HS-PDSCH的SINR分别获取每个载波的CQI，确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI使CQI增大，将所有载波上HS-PDSCH的CQI上报至网络侧；网络侧根据UE上报的CQI对UE进行HS-PDSCH数据调度；如此，通过对获取的各个载波上HS-PDSCH的CQI与第一阈值进行比较，根据比较结果更新CQI使CQI增大，不仅能够提高UE调度的相对优先级，在多用户共存时，还能够提高网络侧分配的HS-PDSCH数据功率；通过对测量的两个或两个以上载波的RSSI与第二阈值比较，根据比较结果更新选位因子使选位因子增大，能够增强低功率载波上的数字基带信号强度；由此，可以减少相邻载波的邻道干扰、增强AGC环路算法的性能、减少由于多次重传引起的下行HSDPA链路数据堆积，增加HSDPA网络的下行链路传输速率，提高用户体验。
附图说明
图1为UE对两载波数字信号进行分离的实现过程示意图；
图2为本发明实施例提高网络性能的方法的基本处理流程示意图；
图3为本发明实施例提高网络性能的方法的详细处理流程示意图；
图4为本发明实施例UE的组成结构示意图。
具体实施方式
本发明实施例中，UE测量两个或两个以上载波的接收信号强度指示RSSI，确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；UE根据选位因子对载波进行滤波；UE根据测量得到的各个载波上HS-PDSCH的SINR分别获取每个载波的CQI，确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI使CQI增大，将所有载波上HS-PDSCH的CQI上报至网络侧；网络侧根据UE上报的CQI对UE进行HS-PDSCH数据调度。
其中，UE在连接态下进行下行双载波HSDPA业务时，所述第一阈值为3dB，UE在连接态下进行下行多载波HSDPA业务时，在双载波的基础上，每增加一个载波，所述第一阈值增加0.3dB；所述第二阈值根据经过UE输入的定点比特值调整。
为更好地理解本实施例所述技术方案，下面介绍UE在连接态下进行带内连续的双载波HSDPA业务时，UE利用基于有限冲击响应(Finite Impulse Response，FIR)结构的根升余弦(Root Raised Cosine，RRC)滤波模块对两载波数字信号进行分离的实现过程，如图1所示，射频RX通路处理一10M带宽的信号，第一载波和第二载波上的信号均经过射频滤波模块和模拟基带滤波模块进行滤波，再经过模拟基带信号AGC增益调整，使得进入模数转换器(analog-digital converter，ADC)之前的模拟基带信号处于接收通路的动态范围。UE在对两载波数字信号进行分离时，ACS处理主要由射频部分实现，数字域的基于FIR结构的RRC滤波器仅实现少部分ACS处 理；因此，对于连续多载波或带宽内非连续多载波HSDPA的场景，各个载波相互之间的ACS处理只能由数字域的基于FIR结构的RRC滤波器实现，引起ACS能力下降，最终导致HSDPA网络的下行链路接收性能降低。
本发明实施例UE侧提高网络性能的方法的基本处理流程，如图2所示，包括以下步骤：
步骤101，UE根据测量得到的两个或两个以上载波上HS-PDSCH的SINR分别获取每个载波上HS-PDSCH的CQI；
具体地，UE测量每个载波上有用信号的总能量和干扰的总能量，计算有用信号的总能量与干扰的总能量的比值，得到每个载波上HS-PDSCH的SINR；
UE在预先存储于自身的SINR-CQI映射表中查询每个SINR对应的CQI，获取每个载波上HS-PDSCH的CQI。
步骤102，确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI；
具体地，比较各个载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值与第一阈值的大小；在所述差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI；
这里，更新后载波上HS-PDSCH的CQI为原载波上HS-PDSCH的CQI和所有载波上HS-PDSCH的最大CQI差值的一半与原载波上HS-PDSCH的CQI之和；设第X载波上HS-PDSCH的CQI为CQI(X)，更新后第X载波上HS-PDSCH的CQI为CQI’(X)，所有载波上HS-PDSCH的最大CQI为CQI(max)，则CQI’(X)＝CQI(X)+[CQI(max)-CQI(X)]/2；
其中，UE在连接态下进行下行双载波HSDPA业务时，所述第一阈值为3dB，UE在连接态下进行下行多载波HSDPA业务时，在双载波的基础 上，每增加一个载波，第一阈值增加0.3dB；即：UE在连接态下进行下行三载波HSDPA业务时，第一阈值为3.3dB；UE在连接态下进行下行四载波HSDPA业务时，第一阈值为3.6dB，以此类推。
步骤103，将所有载波上HS-PDSCH的CQI上报至网络侧；
其中，所述CQI用于网络侧对UE进行调度。
在执行步骤101前，所述方法还包括：
UE测量两个或两个以上载波的接收信号强度指示RSSI；确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；所述选位因子用于UE对接收的载波信号进行滤波；
具体地，更新后的选位因子在原选位因子基础上提高1比特；
其中，所述第二阈值根据UE输入的定点比特值调整；以UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为8为例，第二阈值设定为3dB；UE输入的定点比特数每减少1比特，第二阈值减少0.3dB；UE输入的定点比特数每增加1比特，第二阈值增加0.3dB；即：UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为7时，第二阈值为2.7dB；UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为9时，第二阈值为3.3dB，以此类推。
以UE同时在两个载波上进行HSDPA下行业务时，本发明实施例提高网络性能的方法的详细处理流程，如图3所示，包括以下步骤：
步骤201，UE测量两个载波的RSSI；
这里，测量得到第一载波的RSSI为RSSI1，第二载波的RSSI为RSSI2，且RSSI1大于RSSI2；
具体地，UE如何测量载波的RSSI属于现有技术，这里不再赘述。
步骤202，UE确定RSSI1与RSSI2的差值大于第二阈值时，更新选位 因子；
这里，所述选位因子用于UE对接收的载波信号进行滤波；
其中，更新选位因子具体为：将选位因子提高1比特；
所述第二阈值根据UE输入的定点比特值调整；以UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为8为例，第二阈值设定为3dB；UE输入的定点比特数每减少1比特，第二阈值减少0.3dB；UE输入的定点比特数每增加1比特，第二阈值增加0.3dB；即：UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为7时，第二阈值为2.7dB；UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为9时，第二阈值为3.3dB，以此类推。
步骤203，UE根据测量得到的两个载波上HS-PDSCH的SINR分别获取每个载波上HS-PDSCH的CQI；
具体地，UE测量每个载波上有用信号的总能量和干扰的总能量，计算有用信号的总能量与干扰的总能量的比值，得到第一载波上HS-PDSCH的SINR为SINR1，第二载波上HS-PDSCH的SINR为SINR2，且SINR1大于SINR2；
UE在预先存储于自身的SINR-CQI映射表中查询SINR1对应的CQI1，SINR2对应的CQI2。
步骤204，UE确定第一载波上HS-PDSCH的SINR1与第二载波上HS-PDSCH的SINR2的差值大于第一阈值时，更新第二载波上HS-PDSCH的CQI2；
这里，更新第二载波上HS-PDSCH的CQI2’＝CQI2+(CQI1-CQI2)/2；
其中，UE在连接态下进行下行双载波HSDPA业务时，所述第一阈值为3dB，UE在连接态下进行下行多载波HSDPA业务时，在双载波的基础上，每增加一个载波，第一阈值增加0.3dB；即：UE在连接态下进行下行 三载波HSDPA业务时，第一阈值为3.3dB；UE在连接态下进行下行四载波HSDPA业务时，第一阈值为3.6dB，以此类推。
步骤205，将CQI1和CQI2’上报至网络侧；
其中，所述CQI1和CQI2’分别用于网络侧在第一载波和第二载波上对UE进行调度。
为实现上述提高网络性能的方法，本发明实施例还提供一种UE，所述UE的组成结构，如图4所示，包括：测量模块11、获取模块12、第一比较模块13、第一更新模块14和上报模块15；其中，
所述获取模块12，配置为根据测量模块11测量得到的两个或两个以上载波上HS-PDSCH的SINR分别获取每个载波的CQI；
所述第一比较模块13，配置为比较各个载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值与第一阈值的大小；
其中，UE在连接态下进行下行双载波HSDPA业务时，所述第一阈值为3dB，UE在连接态下进行下行多载波HSDPA业务时，在双载波的基础上，每增加一个载波，第一阈值增加0.3dB；即：UE在连接态下进行下行三载波HSDPA业务时，第一阈值为3.3dB；UE在连接态下进行下行四载波HSDPA业务时，第一阈值为3.6dB，以此类推。
所述第一更新模块14，配置为在所述第一比较模块确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI；
其中，更新后载波上HS-PDSCH的CQI为原载波上HS-PDSCH的CQI和所有载波上HS-PDSCH的最大CQI差值的一半与原载波上HS-PDSCH的CQI之和；设第X载波上HS-PDSCH的CQI为CQI(X)，更新后第X载波上HS-PDSCH的CQI为CQI’(X)，所有载波上HS-PDSCH的最大CQI 为CQI(max)，则CQI’(X)＝CQI(X)+[CQI(max)-CQI(X)]/2。
所述上报模块15，配置为将所有载波上HS-PDSCH的CQI上报至网络侧；所述CQI用于网络侧对UE进行调度。
进一步地，所述UE还包括：第二比较模块16和第二更新模块17；其中，
所述测量模块11，还配置为测量两个或两个以上载波的RSSI；
所述第二比较模块16，配置为比较各个载波的RSSI与所有载波中最大的RSSI的差值与第二阈值的大小；
其中，所述第二阈值根据UE输入的定点比特值调整；以UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为8为例，第二阈值设定为3dB；UE对载波信号滤波后输入的定点比特数每减少1比特，第二阈值减少0.3dB；接收信号的接收机输入的定点比特数每增加1比特，第二阈值增加0.3dB；即：UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为7时，第二阈值为2.7dB；UE对载波信号滤波后输出的定点比特数为12，UE输入的定点比特数为9时，第二阈值为3.3dB，以此类推。
所述第二更新模块17，配置为在所述第二比较模块确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；所述选位因子用于UE对接收的载波进行滤波。
所述UE还包括存储模块18，配置为存储SINR-CQI映射表；
相应的，所述获取模块12，配置为在预先存储于存储模块18内的SINR-CQI映射表中查询每个SINR对应的CQI，获取每个载波上HS-PDSCH的CQI。
进一步地，所述第二更新模块，配置为将所述选位因子提高一个比特位。
本发明实施例中提出的UE中的存储模块18可以通过存储设备实现，如硬盘等；测量模块11、获取模块12、第一比较模块13、第一更新模块14、上报模块15、第二比较模块16和第二更新模块17都可以通过处理器来实现，当然也可通过具体的逻辑电路实现；其中所述处理器可以为中央处理器(CPU)、微处理器(MPU)、数字信号处理器(DSP)或现场可编程门阵列(FPGA)等。
本发明实施例中，如果以软件功能模块的形式实现上述提高网络性能的方法，并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，该计算机存储介质中存储有计算机程序，该计算机程序用于执行本发明实施例的上述提高网络性能的方法。
需要说明的是，本发明实施例所述提高网络性能的方法、装置及存储介质适用于高速下行分组接入。
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 (11)

  1. 一种提高网络性能的方法，所述方法包括：
    用户设备UE根据测量得到的两个或两个以上载波上高速物理下行共享信道HS-PDSCH的信干扰比SINR分别获取每个载波上HS-PDSCH的信道质量指示CQI；
    确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI，将所有载波上HS-PDSCH的CQI上报至网络侧；所述CQI用于网络侧对UE进行调度。
  2. 根据权利要求1所述提高网络性能的方法，其中，所述UE获取每个载波上HS-PDSCH的CQI前，所述方法还包括：
    UE测量两个或两个以上载波的接收信号强度指示RSSI；
    确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；所述选位因子用于UE对接收的载波信号进行滤波。
  3. 根据权利要求1或2所述提高网络性能的方法，其中，所述UE根据测量得到的两个或两个以上载波上HS-PDSCH的SINR分别获取每个载波上HS-PDSCH的CQI，包括：
    所述UE在预先存储于自身的SINR-CQI映射表中查询每个SINR对应的CQI，获取每个载波上HS-PDSCH的CQI。
  4. 根据权利要求1或2所述提高网络性能的方法，其中，更新后载波上HS-PDSCH的CQI为原载波上HS-PDSCH的CQI和所有载波上HS-PDSCH的最大CQI差值的一半与原载波上HS-PDSCH的CQI之和。
  5. 根据权利要求2所述提高网络性能的方法，其中，所述更新选位因 子，包括：
    将所述选位因子提高一个比特位。
  6. 一种用户设备UE，所述UE包括：测量模块、获取模块、第一比较模块、第一更新模块和上报模块；其中，
    所述获取模块，配置为根据测量模块测量得到的两个或两个以上载波上HS-PDSCH的SINR分别获取每个载波的CQI；
    所述第一比较模块，配置为比较各个载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值与第一阈值的大小；
    所述第一更新模块，配置为在所述第一比较模块确定所有载波中有一个或一个以上载波上HS-PDSCH的SINR与所有载波上HS-PDSCH的最大SINR的差值大于第一阈值时，更新所述一个或一个以上载波上HS-PDSCH的CQI；
    所述上报模块，配置为将所有载波上HS-PDSCH的CQI上报至网络侧；所述CQI用于网络侧对UE进行调度。
  7. 根据权利要求6所述UE，其中，所述UE还包括：第二比较模块和第二更新模块；其中，
    所述测量模块，还配置为测量两个或两个以上载波的RSSI；
    所述第二比较模块，配置为比较各个载波的RSSI与所有载波中最大的RSSI的差值与第二阈值的大小；
    所述第二更新模块，配置为在所述第二比较模块确定所有载波中有一个或一个以上载波的RSSI与所有载波中最大的RSSI的差值大于第二阈值时，更新选位因子；所述选位因子用于UE对接收的载波信号进行滤波。
  8. 根据权利要求6或7所述UE，其中，所述UE还包括存储模块，配置为存储SINR-CQI映射表；
    相应的，所述获取模块，配置为在预先存储于存储模块内的SINR-CQI 映射表中查询每个SINR对应的CQI，获取每个载波上HS-PDSCH的CQI。
  9. 根据权利要求6或7所述UE，其中，更新后载波上HS-PDSCH的CQI为原载波上HS-PDSCH的CQI和所有载波上HS-PDSCH的最大CQI差值的一半与原载波上HS-PDSCH的CQI之和。
  10. 根据权利要求7所述UE，其中，所述第二更新模块，配置为将所述选位因子提高一个比特位。
  11. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令用于执行权利要求1至5任一项所述的提高网络性能的方法。
PCT/CN2014/091157 2014-07-21 2014-11-14 提高网络性能的方法、用户设备及存储介质 WO2015117449A1 (zh)

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