WO2013107224A1 - 一种上行信号的发送方法及用户设备 - Google Patents

一种上行信号的发送方法及用户设备 Download PDF

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Publication number
WO2013107224A1
WO2013107224A1 PCT/CN2012/085724 CN2012085724W WO2013107224A1 WO 2013107224 A1 WO2013107224 A1 WO 2013107224A1 CN 2012085724 W CN2012085724 W CN 2012085724W WO 2013107224 A1 WO2013107224 A1 WO 2013107224A1
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WO
WIPO (PCT)
Prior art keywords
pusch
priority
uplink
time domain
transmit power
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/085724
Other languages
English (en)
French (fr)
Inventor
林志嵘
戴博
任璐
夏树强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201210018906.7A external-priority patent/CN103220070B/zh
Priority claimed from CN201210019827.8A external-priority patent/CN103220768B/zh
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to EP12865980.2A priority Critical patent/EP2806696B1/en
Priority to US14/372,993 priority patent/US20140369324A1/en
Publication of WO2013107224A1 publication Critical patent/WO2013107224A1/zh
Anticipated expiration legal-status Critical
Priority to US15/139,264 priority patent/US20160242121A1/en
Priority to US15/856,017 priority patent/US10356725B2/en
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04Transmission power control [TPC]
    • H04W52/06TPC algorithms
    • H04W52/14Separate analysis of uplink or downlink
    • H04W52/146Uplink power control
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W52/00Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/02Power saving arrangements
    • H04W52/0209Power saving arrangements in terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/0005Synchronisation arrangements synchronizing of arrival of multiple uplinks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/004Synchronisation arrangements compensating for timing error of reception due to propagation delay
    • H04W56/0045Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signalling, i.e. of overhead other than pilot signals
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of digital communications, and in particular to 3GPP Long Term Evolution and Advanced 3GPP Long Term Evolution Advanced (LTE-A), and in particular to a method for transmitting an uplink signal and a user equipment.
  • LTE-A 3GPP Long Term Evolution and Advanced 3GPP Long Term Evolution Advanced
  • the uplink physical channel of the Long Term Evolution (LTE) system includes: a Physical Random Access Channel (PARCH), a Physical Uplink Shared Channel (PUSCH), and a physical The Physical Uplink Control Channel (PUCCH for short).
  • PARCH Physical Random Access Channel
  • PUSCH Physical Uplink Shared Channel
  • PUCCH Physical Uplink Control Channel
  • the LTE uplink and downlink OFDM (Orthogonal Frequency Division Multiplexing) technology, the reference signals and data are multiplexed by TDM (Time Division Multiplexing).
  • the uplink reference signal is divided into a Demodulation Reference Signal (DMRS) and a Sounding Reference Signal (SRS), wherein the DMRS is divided into a PUCCH demodulation reference signal and a PUSCH demodulation reference signal. , used for different channel transmissions.
  • DMRS Demodulation Reference Signal
  • SRS Sounding Reference Signal
  • the main role of the DMRS is for the estimation of the uplink channel and the coherent detection and demodulation of the base station (referred to as the eNB).
  • the main function of the SRS is for the measurement of the uplink channel, which facilitates the eNB to perform frequency selective scheduling.
  • the base station in order to implement and maintain uplink synchronization between the user equipment (User Equipment, UE for short) and the base station, the base station sends time according to the transmission delay between itself and each user equipment.
  • the Timing Advance (TA) is given to each user equipment.
  • the user equipment advances or delays the uplink transmission timing according to the time advancement sent by the base station, thereby making up for the transmission delay of the user terminal to the base station, so that the uplink of different user equipments
  • the signal can arrive at the base station within the receiving window of the base station.
  • the LTE-A (LTE Advanced, Advanced Long Term Evolution) system is a next-generation evolution system of the LTE system, which introduces the concept of Carrier Aggregation.
  • the bandwidth of the carrier-aggregated LTE system can be regarded as a component carrier spectrum, and each component carrier can also be used. It is called a serving cell, that is, a spectrum can be aggregated by multiple component carrier frequencies (serving cells).
  • the resources of one RIO UE are composed of multiple serving cells (component carriers) in the frequency domain.
  • One cell is called a primary cell (PCell), and the other cells are called secondary cells (Secondary cells, referred to as SCell). ).
  • the user equipment can work on multiple component carriers at the same time.
  • the component carriers can be continuous or discontinuous in the frequency band. They can be in the same frequency band or from different frequency bands. of.
  • the timing advances on the respective component carriers may be different from each other; even for the same frequency band and on the frequency band
  • Multiple component carriers in succession if each component carrier originates from a different remote radio unit (RRU), or in order to increase cell coverage, each component carrier is processed via a different repeater. Then, the timing advances on each component carrier may also be different from each other.
  • RRU remote radio unit
  • the UE works only on one carrier (one carrier for the time division duplex mode, and one pair of uplink and downlink carriers for the frequency division duplex mode. For convenience of description, the above two cases are simply referred to as one carrier. ), only one uplink synchronization of the uplink needs to be maintained, and in carrier aggregation, the UE can work on multiple component carriers at the same time, and the TAs of these component carriers may be different, that is, multiple timing advances exist simultaneously (Multiple Timing Advance, referred to as ⁇ ).
  • Multiple Timing Advance
  • the ⁇ of different uplink component carriers may be different, which means that the signal symbols transmitted on different uplink component carriers may be misaligned in the time domain, and different uplink component carriers may appear.
  • the UE When the uplink channel on the multiple uplink carriers configured by the UE includes the PUCCH and the PUSCH, and the PUSCH does not carry the Uplink Control Information (UCI), the UE does not reduce the transmit power of the PUCCH and transmits the PUSCH. The power is scaled down until the UE's transmit power does not exceed the maximum transmit power configured by the UE.
  • UCI Uplink Control Information
  • the UE does not reduce the transmit power of the PUSCH carrying the UCI, and performs equal power reduction on the transmit power of all PUSCHs that do not carry the UCI until the transmit power of the UE does not exceed the maximum transmit power configured by the UE.
  • the UE performs equal power reduction on the transmit power of all PUSCHs until the transmit power of the UE does not exceed the configured by the UE.
  • the maximum transmit power is up.
  • the UE When the uplink channel on the multiple uplink carriers configured by the UE includes the PUCCH and the PUSCH, and the PUSCH carries the PUSCH carrying the UCI, the UE does not reduce the PUSCH and the PUSCH power carrying the UCI, and performs the transmission power of the PUSCH that does not carry the UCI. The proportional power is reduced until the UE's transmit power does not exceed the maximum transmit power configured by the UE.
  • the UE performs equal power reduction on the transmit power of all SRSs until the transmit power of the UE does not exceed the maximum transmit power configured by the UE.
  • the power of the uplink signal needs to be reduced.
  • the transmission power of the overlapping symbols exceeds the maximum transmission power configured by the UE when the transmission symbols overlap in the time domain. Therefore, in order to ensure the normal operation of the carrier aggregation system configured with the MTA, it is necessary to define that in the MTA scenario, when the signal symbols transmitted by different uplink component carriers overlap in the time domain, the transmission power of the overlapping symbols exceeds the maximum transmission configured by the UE. Power reduction method at power.
  • a main object of the present invention is to provide a method for transmitting an uplink signal and a user equipment to solve the problem of signal transmission when signal symbols transmitted by different uplink component carriers overlap in the time domain in the presence of an MTA.
  • the present invention provides a method for transmitting an uplink signal, which is applied to a carrier aggregation system, and includes:
  • the user equipment After two or more timing advances are configured, the user equipment according to the signaling indication sent by the base station Or a predefined rule, after performing rate matching on the uplink channel and/or the uplink signal on the different carriers that are to be overlapped in the time domain, and then transmitting, discarding, transmitting, or transmitting simultaneously.
  • the present invention further provides a user equipment, which is applied to a carrier aggregation system, and includes: a receiving module, configured to: receive two or more time advancements configured by a base station; and send a module, where: The sent signaling indication or the predefined rule performs rate matching on the uplink channel and/or the uplink signal on the different carriers in which the preceding and following symbols overlap in the time domain, and then sends, discards, and then transmits or simultaneously transmits.
  • a receiving module configured to: receive two or more time advancements configured by a base station; and send a module, where: The sent signaling indication or the predefined rule performs rate matching on the uplink channel and/or the uplink signal on the different carriers in which the preceding and following symbols overlap in the time domain, and then sends, discards, and then transmits or simultaneously transmits.
  • the user equipment is configured with multiple timing advances.
  • the time domain symbols are not aligned between the uplink channels carried by different carriers, and the time domain symbols overlap on the different carriers, if the uplink of each uplink channel of the UE is determined, The sum of the powers exceeds the maximum transmit power configured by the UE, then
  • the base station instructs the UE to reduce the transmit power of the uplink channel on the different carriers where the time domain symbols overlap.
  • the UE is configured with multiple timing advances. When the time domain symbols are not aligned between the uplink channels carried by the different carriers, and the time domain symbols overlap on the different carriers, if the sum of the transmit powers of the uplink channels of the UE is determined to exceed The maximum transmit power configured by the UE,
  • the UE reduces the transmit power of the uplink channel on the different carriers that overlaps the time domain symbols before and after according to a predefined rule.
  • An uplink signal power reduction apparatus in a carrier aggregation system comprising a transmission power determination unit and a power reduction indication unit in a base station, and a power reduction execution unit in the UE, wherein:
  • the transmitting power judging unit is configured to: when the user equipment is configured with multiple timing advances, and determine that the time domain symbols are not aligned between the uplink channels carried by different carriers, whether the time domain symbols overlap on different carriers, if yes, Then determining whether the sum of the transmit powers of the uplink channels of the UE exceeds the maximum transmit power configured by the UE;
  • the power reduction indication unit is configured to: if the transmit power determination unit determines that a sum of transmit powers of the uplink channels of the UE exceeds a maximum transmit power configured by the UE, indicating the The UE reduces the transmit power of the uplink channel that overlaps the time domain symbols on the different carriers; the power cut execution unit is configured to: according to the indication of the base station, the uplink channel that overlaps the time domain symbols on different carriers The transmission power is reduced.
  • An uplink signal power reduction apparatus in a carrier aggregation system comprising a transmission power determination module in a UE, and a transmission power reduction module, wherein:
  • the transmit power judging module is configured to: the UE is configured with multiple timing advances, and when the time domain symbols are not aligned between the uplink channels carried by different carriers, and the time domain symbols overlap on the different carriers, Whether the sum of the transmit powers of the uplink channels of the UE exceeds the maximum transmit power configured by the UE;
  • the transmit power reduction module is configured to: if the transmit power determination module determines that the sum of the transmit powers of the uplink channels of the UE exceeds the maximum transmit power configured by the UE, the time domain occurs on different carriers according to a predefined rule The transmission power of the uplink channel that overlaps before and after the symbol is reduced.
  • FIG. 1 is a schematic flowchart of a method for transmitting an uplink signal according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of another method for transmitting an uplink signal according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of an uplink signal in Application Example 1-1 and Application Example 1-2 of the present invention
  • FIG. 4 is an application of the present invention.
  • FIG. 5 is a schematic diagram of an uplink signal in Application Example 2-1 and Application Example 2-2 of the present invention
  • FIG. 6 is a schematic diagram of an uplink signal in Application Example 2-3 of the present invention
  • Figure 7 is a schematic diagram of an uplink signal in Application Example 3-1 and Application Example 3-2 and Application Example 3-3 of the present invention.
  • FIG. 8 is a schematic diagram of an uplink signal in an application example 3-4 of the present invention.
  • FIG. 9 is a schematic diagram of an uplink signal in Application Example 4-1 and Application Example 4-2 in the present invention
  • FIG. 10 is an uplink signal in Application Example 5-1 and Application Example 5-2 and Application Example 5-3 in the present invention.
  • 11 is a schematic diagram of a user equipment according to an embodiment of the present invention
  • 12 is a schematic flowchart of a method for reducing uplink signal power in a carrier aggregation system according to Embodiment 1 of the present invention
  • FIG. 13 is a schematic flowchart of a method for reducing uplink signal power in a carrier aggregation system according to Embodiment 2 of the present invention.
  • FIG. 14 is a schematic diagram showing partial overlap of uplink symbols transmitted by different uplink component carriers of ⁇ -1, ⁇ -2, ⁇ -3, and ⁇ -1l according to an embodiment of the present invention
  • 15 is a schematic diagram showing partial overlap of uplink symbols of different uplink component carrier transmissions of ⁇ -4 and ⁇ -5 according to an embodiment of the present invention
  • 16 is a schematic diagram showing partial overlap of uplink symbols generated by different uplink component carriers of ⁇ -6, ⁇ -7, and ⁇ -8 according to an embodiment of the present invention
  • 17 is a schematic diagram showing partial overlap of uplink symbols of different uplink component carrier transmissions of ⁇ -9 and ⁇ -10 according to an embodiment of the present invention.
  • FIG. 18 is a schematic diagram showing partial overlap of uplink symbols generated by different uplink component carrier transmissions according to Embodiments 2'-1, 2'-2, and 2'-3 of the present invention.
  • FIG. 19 is a schematic diagram showing partial overlap of uplink symbols of different uplink component carrier transmissions according to Embodiments 2'-4 and 2'-5 of the present invention.
  • 20 is a schematic diagram showing partial overlap of uplink symbols of different uplink component carrier transmissions according to Embodiments 2'-6, 2'-7, and 2'-8 of the present invention.
  • 21 is a schematic diagram showing partial overlap of uplink symbols of different uplink component carrier transmissions according to Embodiments 2'-9 and 2'-10 of the present invention.
  • 22 is a schematic diagram of an uplink signal power reduction apparatus in a carrier aggregation system
  • FIG. 23 is a schematic diagram of an uplink signal power reduction apparatus in a carrier aggregation system. Preferred embodiment of the invention
  • a method for transmitting an uplink signal is applied to a carrier aggregation system, as shown in FIG. 1 and FIG. 2, include:
  • the UE After two or more TAs are configured, the UE performs rate matching on the uplink channel and/or the uplink signal on the different carriers in which the preceding and succeeding symbols overlap on the different carriers according to the signaling indication of the eNB or a predefined rule. , discard and then send or send at the same time.
  • the uplink channel may be a PUSCH, a PUCCH, and/or a PRACH.
  • the uplink signal may be an SRS, and the SRS may be a periodic SRS or an aperiodic SRS.
  • the signaling indication of the foregoing eNB may be physical signaling, or may be a high-level signaling indication, where the signaling content may be a trigger indication and/or a sending indication.
  • the sending indication may indicate that uplink channels and/or uplink signals that are to be overlapped in the time domain on the different carriers are allowed to be simultaneously transmitted, and may also indicate that the UE is to occur on different carriers on the time domain.
  • the uplink channel and/or the uplink signal overlapping the preceding and following symbols are rate matched, then transmitted, discarded, or transmitted simultaneously.
  • the foregoing simultaneous transmission is specifically:: processing an uplink channel and/or an uplink signal whose symbols are to be overlapped in the time domain, and directly transmitting an uplink channel and/or an uplink signal;
  • the foregoing rate matching is specifically: a symbol to be generated
  • the rate matching (Rate Matching, RM for short) is performed on the uplink channel and/or the uplink signal that overlaps in the time domain, and a specific symbol of the uplink channel is left blank, and no transmission is performed in the symbol;
  • the discarding is specifically: Discarding the upstream channel and/or the uplink signal that the specific symbol will overlap in the time domain, and not transmitting the discarded uplink channel and/or the uplink signal.
  • the foregoing predefined rules are respectively triggered rules and sending rules, and are processed according to the sending rules on the premise that the triggering rules are met; wherein the triggering rules in the predefined rules are at least one of the following rules:
  • the uplink channels with overlapping before and after the time domain are all PUSCH
  • the UE can be processed in any of the following ways:
  • the UE simultaneously transmits PUSCH on different carriers
  • the UE discards the PUSCH with lower priority and transmits the PUSCH with higher priority according to a certain priority.
  • the UE simultaneously transmits the PUSCHs with the same priority;
  • the UE performs rate matching on the PUSCH with the lower priority according to a certain priority, and the symbols in the PUSCH with lower priority are overlapped with the PUSCH symbols with higher priority, and then transmit the PUSCH on different carriers. .
  • the UEs simultaneously transmit the PUSCHs with the same priority.
  • priority in this rule 1) is at least one of the following priorities:
  • V a priority determined according to whether new transmission data is used, wherein: the priority of the PUSCH carrying the new transmission data is higher than the priority of the PUSCH carrying the retransmitted data.
  • the UE may use any of the following methods:
  • the UE simultaneously transmits PUSCH and PUCCH on different carriers;
  • the UE discards the PUSCH and only transmits the PUCCH
  • the UE performs rate matching on the PUSCH, leaving the symbols in the PUSCH overlapping with the PUCCH symbols, and then transmitting the PUSCH and PUCCH on different carriers.
  • the UE performs the same operation on all the PUSCHs that overlap the PUCCH according to the present mode c.
  • PUSCHs on different carriers that are to be overlapped in front and rear symbols in the time domain are processed.
  • the UE can be processed in any of the following ways:
  • the UE simultaneously transmits PUSCH and SRS on different carriers;
  • the UE discards the PUSCH and only transmits the SRS
  • the UE performs rate matching on the PUSCH, leaving a symbol in the PUSCH that overlaps with the SRS, and then transmitting PUSCH and SRS on different carriers.
  • the UE When the PUSCH on the multiple different carriers overlaps with the preceding and following symbols in the time domain of the SRS on the different carriers, the UE operates on all the overlapping SRSs and all the PUSCHs according to the present mode c), if the PUSCH still exists between the PUSCHs In the case where the preceding and following symbols overlap in the time domain, the PUSCH on the different carriers that will overlap in the time domain before and after the symbols is processed according to rule 1).
  • the UE may use any of the following methods:
  • the UE simultaneously transmits PUCCH and SRS on different carriers
  • the UE may perform processing in any of the following ways:
  • the UE simultaneously transmits SRS and PUCCH on multiple different carriers
  • the UE discards all SRSs and only transmits PUCCHs
  • the UE discards all periodic SRSs where pre- and post-symbol overlap will occur, while transmitting all aperiodic SRS and PUCCH where pre- and post-symbol overlap will occur.
  • a user equipment as shown in FIG. 11, is applied to a carrier aggregation system, and includes: a receiving module, configured to receive two or more timing advances configured by the base station;
  • a sending module configured to perform rate matching on an uplink channel and/or an uplink signal that overlaps before and after the time domain on a different carrier according to a signaling indication or a predefined rule sent by the base station, and then send and discard Then send it or send it at the same time.
  • the signaling indication is a sending indication, where the sending indication is used to indicate that the user equipment simultaneously transmits an uplink channel and/or an uplink signal that is to be overlapped in the time domain on the different carriers, or And the user equipment is configured to perform rate matching on the uplink channel and/or the uplink signal on the different carriers that are to be overlapped in the time domain on the different carriers according to a certain rule, and then send, discard, and then send or simultaneously transmit.
  • the sending module performs rate matching on the uplink channel and/or the uplink signal on the different carriers that are to be overlapped in the time domain, and the uplink signal includes:
  • the transmitting module leaves a certain symbol of the uplink channel and/or the uplink signal whose symbols are to be overlapped in the time domain, and does not transmit within the symbol.
  • the sending module discards an uplink channel and/or an uplink signal that is to be overlapped in the time domain on the different carriers, which includes:
  • the transmitting module discards the uplink channel and/or the uplink signal whose specific symbols overlap in the time domain, and does not transmit the corresponding uplink channel and/or the uplink signal on the discarded symbol.
  • the predefined rule includes a triggering rule and a sending rule; if the triggering rule is met, processing the uplink channel and/or the uplink signal according to the sending rule; For one of the following rules:
  • the user equipment finds that the difference between the actual transmission times of different configured uplink carriers exceeds a second preset threshold.
  • the sending rule includes:
  • the sending module uses any one of the following methods: Manner 1: The sending module simultaneously sends the PUSCH on different carriers;
  • Manner 2 The sending module discards a PUSCH with a lower priority and transmits a PUSCH with a higher priority according to a certain priority; and when the PUSCH with the same priority is to be overlapped in the time domain, the sending module Simultaneously transmitting the PUSCHs with the same priority;
  • Manner 3 The sending module, according to a certain priority, blanks a symbol that overlaps with a PUSCH symbol with a higher priority in a PUSCH with a lower priority, and then transmits a PUSCH on a different carrier; when the PUSCH with the same priority When the preceding and following symbols overlap in the time domain, the transmitting module simultaneously transmits the PUSCHs having the same priority.
  • the priority of the PUSCH carrying the uplink control information is higher than the priority of the PUSCH not carrying the uplink control information
  • the priority of the PUSCH on the primary serving cell is higher than the priority of the PUSCH on the secondary serving cell;
  • the priority of the PUSCH of the previous subframe is higher than the priority of the PUSCH of the subsequent subframe;
  • the priority of the PUSCH of the subsequent subframe is higher than the priority of the PUSCH of the previous subframe;
  • the priority of the PUSCH carrying the new transmission data is higher than the priority of the PUSCH carrying the retransmitted data.
  • the sending rule includes:
  • the sending module uses any one of the following methods for processing: Mode 1: The sending module simultaneously sends different PUSCH and PUCCH on the carrier;
  • Manner 2 The sending module discards the PUSCH and sends only the PUCCH.
  • Manner 3 The sending module performs rate matching, leaving a symbol in the PUSCH that overlaps with the PUCCH symbol, and then transmitting PUSCH and PUCCH on different carriers.
  • the PUSCH on the two or more different carriers overlaps with the PUCCH in the time domain
  • the PUSCH overlaps with all PUSCHs in the manner described above.
  • the two or more PUSCHs are processed by using any one of the following methods:
  • Method 1 The sending module simultaneously transmits PUSCH on different carriers
  • Manner 2 The sending module discards a PUSCH with a lower priority and transmits a PUSCH with a higher priority according to a certain priority; and when the PUSCH with the same priority is to be overlapped in the time domain, the transmitting module Simultaneously transmitting the PUSCHs with the same priority;
  • Manner 3 The transmitting module blanks a symbol that overlaps a PUSCH symbol with a higher priority in a PUSCH with a lower priority according to a certain priority, and then transmits a PUSCH on a different carrier; when the PUSCH with the same priority When the preceding and following symbols overlap in the time domain, the transmitting module simultaneously transmits the PUSCHs having the same priority.
  • the sending rule includes:
  • the sending module may be processed in any of the following manners:
  • Manner 1 The sending module simultaneously sends PUSCH and SRS on different carriers;
  • Manner 2 The sending module discards the SRS and only sends the PUSCH.
  • Manner 3 The sending module discards the PUSCH and only sends the SRS.
  • Manner 4 The sending module leaves a symbol in the PUSCH that overlaps with the SRS, and then sends PUSCH and SRS on different carriers.
  • the sending module processes the two or more PUSCHs by using any one of the following methods:
  • Method 1 The sending module simultaneously transmits PUSCH on different carriers
  • Manner 2 The sending module discards a PUSCH with a lower priority and transmits a PUSCH with a higher priority according to a certain priority; and when the PUSCH with the same priority is to be overlapped in the time domain, the transmitting module Simultaneously transmitting the PUSCHs with the same priority; Manner 3: The transmitting module blanks a symbol that overlaps a PUSCH symbol with a higher priority in a PUSCH with a lower priority according to a certain priority, and then transmits a PUSCH on a different carrier; when the PUSCH with the same priority When the preceding and following symbols overlap in the time domain, the transmitting module simultaneously transmits the PUSCHs having the same priority.
  • the sending rule includes:
  • the sending module uses any of the following methods:
  • Manner 1 The sending module simultaneously sends PUCCH and SRS on different carriers;
  • Manner 2 The sending module discards the SRS and sends only the PUCCH.
  • the sending rule includes:
  • the sending module performs processing in any of the following manners:
  • Manner 1 The sending module simultaneously sends SRS and PUCCH on multiple different carriers
  • Manner 2 The sending module discards all SRSs and only sends PUCCHs.
  • Manner 3 The sending module discards all periodic SRSs that are to be overlapped before and after the symbol, and simultaneously sends all aperiodic SRSs and PUCCHs that are to be overlapped before and after.
  • the predefined rule includes a triggering rule and a sending rule; if the triggering rule is met, processing the uplink channel and/or the uplink signal according to the sending rule;
  • the user equipment finds that the difference between the actual transmission times of different configured uplink carriers exceeds a second preset threshold
  • the user equipment configures a plurality of timing advances, and when the time domain symbols are not aligned between the uplink channels carried by the different carriers, and the time domain symbols overlap on the different carriers, if the UE is determined to each uplink channel The sum of the transmit powers exceeds the maximum transmit power configured by the UE.
  • the UE configures two uplink carriers CC1 and CC2, where CC1 is PCell, CC2 is SCelL CCl and CC2 belong to different TA groups, where CC1 belongs to TA group 1, and CC2 belongs to TA group 2.
  • TAG indicates the TA group, as in the following figures.
  • the UE directly transmits the PUSCHs on CC1 and CC2. .
  • both CC1 and CC2 need to transmit PUSCH. Since CCl is different from CC of CC2, the PUSCH symbol in subframe n on CC1 partially overlaps with the PUSCH symbol in subframe n on CC2.
  • the PUSCH in CC1 carries the UCI, and the PUSCH in CC2 does not carry the UCI.
  • the eNB indicates by the signaling that the UE discards the PUSCH on one of the CCs according to the priority, or the UE discards the PUSCH on one of the CCs according to the priority in the pre-defined rule 1), :
  • the priority is set according to the carrier carrying the PUSCH. Since the CC1 is the PCell, the PUSCH priority on the CCl is higher than the PUSCH on the CC2. The PUSCH on CC2 only transmits the PUSCH on the CCl;
  • the priority is set according to whether the UCI is carried. Since the PUSCH in the CC1 carries the UCI, the PUSCH priority on the CC1 is higher than the PUSCH on the CC2. The PUSCH on CC2 is discarded, and only the PUSCH on CCl is transmitted.
  • CC1 needs to transmit PUSCH, in subframe n+1, CC2.
  • the PUSCH needs to be transmitted. Since CC1 is different from CC of CC2, the last symbol of the PUSCH in subframe n on CC1 partially overlaps with the first symbol of PUSCH in subframe n+1 on CC2.
  • the PUSCH in CC1 carries the UCI, and the PUSCH in CC2 does not carry the UCI.
  • the eNB indicates by the signaling that the UE performs rate matching on one of the PUSCHs according to the priority, leaving the symbol overlapping with another PUSCH symbol, or the UE follows the pre-defined rule 1) in the manner c), according to the priority
  • the level performs rate matching on one of the PUSCHs, leaving a symbol that overlaps with another PUSCH symbol, then:
  • the priority is set according to whether the UCI is carried. Since the PUSCH in the CC1 carries the UCI, the PUSCH priority on the CC1 is higher than the PUSCH on the CC2, so the UE is on the CC2.
  • the upper PUSCH performs rate matching, leaving the first symbol in the PUSCH on the CC2, and then transmitting CC1 in the subframe n and other symbols in the PUSCH on the CC2 in the subframe n+1;
  • the priority is set according to the carrier carrying the PUSCH. Since CC1 is a PCell, the PUSCH priority on CC1 is higher than the PUSCH on CC2. Therefore, the UE is on CC2.
  • the PUSCH performs rate matching, leaving the first symbol in the PUSCH on the CC2, and then transmitting the CC1 in the subframe n and the PUSCH on the CC2 in the subframe n+1;
  • the priority is set by the subframe index, and the PUSCH of the previous subframe is higher than the PUSCH of the subsequent subframe, and the subframe corresponding to the PUSCH on the CC1 is used.
  • the index is n
  • the corresponding subframe index of the PUSCH on CC2 is n+1, so the PUSCH priority on CC1 is higher than the PUSCH priority on CC2, so the UE performs rate matching on the PUSCH on CC2, leaving blank on CC2.
  • the priority is set in the method IV), that is, the priority is set by the subframe index, and the PUSCH of the subsequent subframe is higher than the PUSCH of the previous subframe, the subframe index corresponding to the PUSCH on the CC1.
  • the corresponding subframe index of the PUSCH on CC2 is n+1, so the PUSCH priority on CC2 is higher than the PUSCH priority on CC1, so the UE performs rate matching on the PUSCH on CC1, leaving blank on CC1.
  • the last symbol in the PUSCH then transmits CC1 in subframe n and PUSCH on CC2 in subframe n+1.
  • both CC1 and CC2 need to transmit PUSCH. Since CC1 is different from CC of CC2, the PUSCH symbol in subframe n on CC1 partially overlaps with the PUSCH symbol in subframe n on CC2.
  • the PUSCH in CC1 is the new transmission data, and the PUSCH in CC2 is the retransmission data.
  • the eNB indicates by the signaling that the UE performs rate matching on one of the PUSCHs according to the priority, leaving its symbol overlapping with another PUSCH symbol, or the UE according to the predefined rule 1), one PUSCH according to the priority. If the rate matching is performed, the symbol that overlaps with another PUSCH symbol is left blank.
  • the priority is set in the method VI
  • the PUSCH in CC1 is the new data
  • the PUSCH in CC2 is the retransmission. Data, therefore, the PUSCH priority in CC1 is higher than the PUSCH priority in CC2, the UE will discard the PUSCH in CC2 and only transmit the PUSCH in CC1.
  • CC1 needs to transmit PUSCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the last symbol of PUSCH in subframe n on CC1 partially overlaps with the first symbol of PUSCH in subframe n+1 on CC2.
  • the PUSCH in CC1 is the new transmission data, and the PUSCH in CC2 is the retransmission data.
  • the eNB indicates by the signaling that the UE discards the PUSCH on one of the CCs according to the priority, or the UE performs rate matching on one of the PUSCHs according to the priority in the manner c) in the predefined rule 1)
  • the symbol is overlapped with another PUSCH symbol, then when the priority is set in the method VI), the PUSCH in CC1 is the newly transmitted data, and the PUSCH in CC2 is the retransmitted data, so in CC1
  • the PUSCH priority is higher than the PUSCH priority in the CC2, and the UE performs rate matching on the PUSCH in the CC2 in the subframe n+1, leaving the first symbol of the PUSCH of the CC2 in the subframe n+1, and transmitting the subframe.
  • the UE configures two uplink carriers CC1 and CC2, where CC1 is PCell, CC2 is SCelL CC1 and CC2 belong to different TA groups, where CC1 It belongs to TA group 1, and CC2 belongs to TA group 2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the PUCCH symbol in subframe n on CC1 partially overlaps with the PUSCH symbol in subframe n on CC2.
  • the eNB indicates by the signaling that the UE sends the PUCCH on the CC1 and the PUSCH on the CC2 simultaneously, or the UE transmits the PUSCH on the CC1 and the PUSCH on the CC2 according to the mode a) in the predefined rule 2), Then, the UE directly transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the PUCCH symbol in subframe n on CC1 partially overlaps with the PUSCH symbol in subframe n on CC2.
  • the eNB indicates by the signaling that the UE discards the PUSCH on the CC2, and only transmits the PUCCH on the CC1, or the UE discards the PUSCH that overlaps with the PUCCH according to the manner b) in the predefined rule 2), the UE The PUSCH on CC2 is discarded, and only the PUCCH on CC1 is transmitted.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the last symbol of PUCCH in subframe n on CC1 partially overlaps with the first symbol of PUSCH in subframe n+1 on CC2.
  • the eNB indicates by the signaling that the UE performs rate matching on the PUSCH on the CC2, the first symbol of the PUSCH on the subframe n+1 in the CC2 is left blank, and then the PUCCH and the subframe n on the CC1 in the subframe n are transmitted.
  • the PUSCH on CC2 in +1, or the UE performs rate matching on the PUSCH overlapping with the PUCCH before and after the PUCCH according to the rule c) in the predefined rule 2), leaving the PUSCH symbol overlapping with the PUCCH, then the UE is on the CC2
  • the PUSCH performs rate matching, leaving the first symbol of the PUSCH of CC2, and then transmitting the PUCCH on CC1 in subframe n and the PUSCH on CC2 in subframe n+1.
  • the UE configures two uplink carriers CC1 and CC2, where CC1 is PCell, CC2 is SCelL CC1 and CC2 belong to different TA groups, where CC1 belongs to TA group 1, and CC2 belongs to TA. Group 2.
  • CC1 needs to transmit PUSCH
  • CC2 needs to transmit SRS. Since CC1 is different from CC of CC2, the PUSCH symbol in subframe n on CC1 overlaps with the SRS symbol in subframe n on CC2.
  • the UE sends the PUSCH on the CC1 and the SRS on the CC2 simultaneously, or the UE sends the PUSCH on the CC1 and the SRS on the CC2 simultaneously according to the method a) in the predefined rule 3). Then the UE transmits the PUSCH on CC1 and the SRS on CC2 simultaneously.
  • CC1 needs to transmit PUSCH
  • CC2 needs to transmit SRS. Since CC1 is different from CC of CC2, the PUSCH symbol in subframe n on CC1 overlaps with the SRS symbol in subframe n on CC2.
  • the eNB indicates by the signaling that the UE discards the PUSCH on the CC1, only the SRS on the CC2 is transmitted, or the UE discards the PUSCH overlapping with the pre- and post-synchronization symbols in the SRS according to the pre-defined rule 3). Then the UE discards the PUSCH on CC1 and only transmits the SRS on CC2.
  • CC1 needs to transmit PUSCH
  • CC2 needs to transmit SRS. Since CC1 is different from CC of CC2, the PUSCH symbol in subframe n on CC1 overlaps with the SRS symbol in subframe n on CC2.
  • the eNB indicates by the signaling that the UE discards the SRS on the CC2, only the PUSCH on the CC1 is transmitted, or the UE discards the SRS overlapping with the PUSCH before and after the PUSCH according to the manner b) in the predefined rule 3). Then, the UE discards the SRS on CC2 and only transmits the PUSCH on CC1.
  • CC1 needs to transmit SRS.
  • CC2 needs to To transmit PUSCH. Since CCl is different from CC of CC2, the SRS symbol in subframe n on CCl overlaps with the PUSCH symbol in subframe n+1 on CC2.
  • the UE performs rate matching on the PUSCH on the CC2, leaving the symbol in the PUSCH that overlaps with the SRS of the CC1 in the time domain, or the UE according to the predefined rule 3)
  • the blank rate is matched with the PUSCH symbol that the SRS symbol is to be overlapped in the time domain.
  • the UE performs rate matching on the PUSCH on the CC2, leaving the first symbol of the PUSCH on the CC2, and transmitting the CC1 in the subframe n.
  • SRS and PUSCH on CC2 in subframe n+1.
  • the UE configures two uplink carriers CC1 and CC2, where CC1 is PCell, CC2 is SCelL CCl and CC2 belong to different TA groups, where CC1 belongs to TA group 1, and CC2 belongs to TA group 2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit SRS. Since CCl is different from CC of CC2, the PUCCH symbol in subframe n on CC1 overlaps with the SRS symbol in subframe n on CC2.
  • the UE sends the PUCCH on the CC1 and the SRS on the CC2 simultaneously, or the UE sends the PUCCH on the CCl and the SRS on the CC2 simultaneously according to the method a) in the predefined rule 4). Then the UE transmits the PUCCH on CC1 and the SRS on CC2 simultaneously.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit SRS. Since CCl is different from CC of CC2, the PUCCH symbol in subframe n on CC1 overlaps with the SRS symbol in subframe n on CC2.
  • the eNB indicates by the signaling that the UE discards the SRS on the CC2, only the CC1 is sent.
  • the PUCCH, or the UE discards the SRS overlapping with the PUCCH before and after the PUCCH in the manner of the predefined rule 4), the UE discards the SRS on the CC2 and transmits the PUCCH on the CC1.
  • the UE configures three uplink carriers, which are CC1, CC2, and CC3, where CC1 is PCell, CC2 and CC3 are SCelL, where CC1 belongs to TA group 1, and CC2 and CC3 belong to TA. Group 2.
  • CC1 needs to transmit PUCCH, and both CC2 and CC3 need to transmit SRS, where CC2 is aperiodic SRS and CC3 is periodic SRS. Since CC1 is different from CC2 and CC3, the PUCCH symbol in subframe n on CC1 overlaps with the SRS in subframe n on CC2 and the SRS symbol in subframe n on CC3.
  • the eNB indicates by the signaling that the UE sends the PUCCH on the CC1 and the SRS on the CC2 and the CC3 simultaneously, or the UE sends the SRS and the PUCCH according to the mode a) in the predefined rule 5), the UE will be on the CC1.
  • the PUCCH is transmitted simultaneously with the SRS on CC2 and CC3.
  • CC1 needs to transmit PUCCH, and both CC2 and CC3 need to transmit SRS, where CC2 is aperiodic SRS and CC3 is periodic SRS. Since CC1 is different from CC2 and CC3, the PUCCH symbol in subframe n on CC1 overlaps with the SRS in subframe n on CC2 and the SRS symbol in subframe n on CC3.
  • the eNB indicates by the signaling that the UE discards the SRSs on the CC2 and the CC3, and only transmits the PUCCH on the CC1, or the UE discards the SRS according to the manner in the predefined rule 5), and only transmits the PUCCH, the UE The SRSs on CC2 and CC3 are discarded, and only the PUCCH on CC1 is transmitted.
  • CC1 needs to transmit PUCCH, and both CC2 and CC3 need to transmit SRS, where CC2 is aperiodic SRS and CC3 is periodic SRS. Since CC1 is different from CC2 and CC3, the PUCCH symbol in subframe n on CC1 overlaps with the SRS in subframe n on CC2 and the SRS symbol in subframe n on CC3.
  • the SRS which only transmits the PUCCH and the aperiodic SRS, the UE discards the periodic SRS on CC3, and transmits the PUCCH on CC1 and the aperiodic SRS on CC2.
  • the present embodiment provides a method for reducing uplink signal power in a carrier aggregation system, and uses the following scheme:
  • the user equipment is configured with multiple TAs.
  • the time domain symbols are not aligned between the uplink channels carried by different carriers, and the time domain symbols overlap on the different carriers, if the sum of the transmit powers of the uplink channels of the UE exceeds the UE configuration. Maximum transmit power, then
  • the base station instructs the UE to reduce the transmission power of the uplink channel on the different carriers where the time domain symbols overlap.
  • the base station may indicate, by using physical layer signaling or high layer signaling, that the UE reduces the transmit power of the uplink channel that overlaps the time domain symbols on different carriers.
  • the base station may indicate a predefined rule of UE power reduction
  • the UE reduces the transmit power of the uplink channel that overlaps the time domain symbols on different carriers.
  • the base station may indicate the UE power reduction scheme and/or the power reduction target; and the UE reduces the transmission power of the power reduction target (ie, the designated uplink channel) according to the power reduction scheme indicated by the base station.
  • the power reduction target ie, the designated uplink channel
  • the uplink signal power reduction method in the carrier aggregation system of the present embodiment mainly includes the following steps:
  • Step 1 In the carrier aggregation system configured with the MTA, the UE finds that the time domain symbols overlap before and after the uplink signals carried in different uplink carriers, and the sum of the transmission powers of the overlapping symbols exceeds the maximum transmission configured by the UE. power.
  • Step 2 The eNB notifies the UE by signaling, how to perform power reduction on the transmit power of the uplink signal;
  • the base station notifies the UE to perform power reduction according to the specified predefined rule, or the base station instructs the UE to perform power reduction on the transmission power of the specified power reduction target (uplink channel), and can specify the power reduction mode.
  • the base station may instruct the UE to reduce the transmit power of all uplink channels; or may indicate that the UE only reduces the power on the symbols that overlap on different channels, and does not reduce the symbol power that does not overlap.
  • the power reduction mode specified by the base station may be: equalizing the uplink channel transmit power on different carriers; performing power reduction according to the priority of the uplink channel, first reducing the transmit power of the lower priority uplink channel, and then reducing The transmit power of the higher priority uplink channel, and so on.
  • Step 3 The UE performs power reduction on the transmit power of the uplink signals carried in different uplink carriers according to the indication of the eNB.
  • Step 4 After the UE reduces the transmit power to the UE and does not exceed the maximum transmit power configured by the UE, the UE sends an uplink signal.
  • the UE may notify the base station by using physical layer uplink signaling, so that the base station knows that the UE is in a power limited state.
  • the user equipment is configured with multiple TAs.
  • the time domain signals are not aligned between the uplink channels carried by different carriers, and the time domain symbols overlap on the different carriers, if the sum of the transmit powers of the uplink channels of the UE exceeds the UE configuration. Maximum transmit power, then
  • the UE reduces the transmit power of the uplink channel on the different carriers that overlaps the time domain symbols before and after according to a predefined rule.
  • the present embodiment provides an uplink signal power reduction method in a carrier aggregation system, and uses the following scheme:
  • Step 1 In the carrier aggregation system configured with the MTA, the UE finds that the time domain symbols overlap before and after the uplink signals carried in different uplink carriers, and the sum of the transmission powers of the overlapping symbols exceeds the maximum transmission configured by the UE. power.
  • Step 2 The UE performs power reduction on the transmit power of the uplink signals carried in different uplink carriers according to a predefined rule.
  • the UE may perform equal-scale reduction on the transmit power of all uplink channels.
  • the UE may perform power reduction according to the priority of the uplink channel, first reduce the transmit power of the lower priority uplink channel, and then reduce the uplink with higher priority.
  • the transmit power of the channel or, it is also possible to reduce only the power on the symbols that overlap on different channels, without reducing the symbol power that does not overlap; Wait.
  • Step 3 After the UE's transmit power does not exceed the maximum transmit power configured by the UE, the UE sends an uplink signal.
  • the uplink channel is PUSCH and/or PUCCH and/or PRACH.
  • the UE determines whether the sum of the transmit powers of the uplink channels exceeds the maximum transmit power configured by the UE, and may be one of the following methods:
  • the UE determines whether the sum of the uplink channel powers carried by the uplink carriers in the current subframe exceeds the maximum transmit power configured by the UE.
  • the UE determines whether the sum of the uplink channel power carried by each uplink carrier in the current subframe and the uplink channel power carried by each uplink carrier to be transmitted in the next subframe exceeds the maximum transmit power configured by the UE.
  • the foregoing predefined rule is at least one of the following rules: Rule 1 is to reduce the transmit power of the uplink channel of each uplink carrier by an equal ratio until the transmit power of the UE does not exceed the maximum transmit power configured by the UE. .
  • Rule 2 Perform power reduction on each uplink channel according to a certain priority, first reduce the transmission power of one or more uplink channels with lower priority, and then reduce the transmission power of one or more uplink channels with higher priority.
  • the number of uplink channels in the same priority may be one or more.
  • the transmit power of one or more uplink channels with lower priority is reduced, the total transmit power of the uplink channel of the UE does not exceed the maximum transmit power configured by the UE, and the reduction is not performed.
  • the transmit power of one or more upstream channels with higher priority is not performed.
  • the priority setting method in the above rule 2 is one or more of the following combinations:
  • Formulation method 1 The priority according to the channel type, its priority can be:
  • the priorities are as follows: The PUSCH carrying the UCI does not carry the PUSCH of the UCI.
  • Formulation method 4 The priority according to the subframe index, the priority of which can be: high channel to low channel in the previous subframe, and uplink channel in the next subframe.
  • Formulation method 5 The priority according to the sub-frame index, the priority of which can be from high to low: the uplink channel in the next subframe, and the uplink channel in the previous subframe.
  • the priority is set according to whether the data is carried in the PUSCH, and the priority may be: carrying the new data.
  • the PUSCH and the PUSCH carrying the retransmitted data are a plurality of PUSCHs.
  • the power reduction method in the above predefined rule 3 may be a proportional reduction, or may be a priority-based power reduction in Rule 2.
  • the UE is configured with two uplink carriers CC1 and CC2, where CC1 is PCell and CC2 is SCell.
  • CC1 and CC2 belong to different TA groups, where CC1 belongs to TA group 1 and CC2 belongs to TA group 2.
  • both CC1 and CC2 need to transmit PUSCH. Since CC1 is different from CC of CC2, the PUSCH symbol (marked as) in subframe n on CC1 is And exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and simultaneously sends out the transmit power of the PUSCH on CC1 and CC2 in equal proportions; or
  • the UE performs a proportional reduction on the transmit power of the uplink channel on all carriers according to a predefined rule 1.
  • the UE performs a proportional reduction on the transmit power of the PUSCH on CC1 and CC2 until the sum of the PUSCH transmit powers on CC1 and CC2 does not exceed the maximum transmit power configured by the UE, and then the UE simultaneously transmits the PUSCHs on CC1 and CC2.
  • both CC1 and CC2 need to transmit PUSCH. Since CC1 is different from CC of CC2, the PUSCH symbol (marked as ) in subframe n on CC1 is
  • PUSCH in subframe n on CC2 (marked as ⁇ symbol partially overlaps. and exceeds the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, according to the predefined rule 2, performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces one or more lower priorities.
  • the UE performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces transmission power of one or more uplink channels with lower priority.
  • the CCSCH is the PCell and the CC2 is the SCell. Therefore, the PUSCH on CC1 has a higher priority than the PUSCH on CC2.
  • the UE first reduces the transmit power of the PUSCH on the CC2, and then reduces the transmit power of the PUSCH on the CC1 until the total transmit power of the uplink channel of the UE is not higher than the maximum transmit power configured by the UE.
  • Example ⁇ -3 As shown in FIG. 14, in subframe n, both CCl and CC2 need to transmit PUSCH.
  • the PUSCH on the CC1 carries the UCI, and the PUSCH on the CC2 does not carry the UCI. Since CC1 is different from CC of CC2, the PUSCH symbol (indicator) in CC n
  • the eNB notifies the UE by signaling, according to the predefined rule 2, performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces one or more lower priorities.
  • the UE performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces transmission power of one or more uplink channels with lower priority.
  • the PUSCH carries the UCI, and the PUSCH on CC2 does not carry the UCI, so the PUSCH priority of CC1 is higher than the PUSCH on CC2.
  • the UE first reduces the transmit power of the PUSCH on the CC2, and then reduces the transmit power of the PUSCH on the CC1 until the total transmit power of the uplink channel of the UE is not higher than the maximum transmit power configured by the UE.
  • CC1 needs to transmit PUSCH
  • CC2 also needs to transmit PUSCH. Since CCl is different from CC of CC2, the PUSCH symbol (marked as ) in subframe n on CC1 partially overlaps with the PUSCH (marked as ⁇ ) symbol in subframe n+1 on CC2.
  • the eNB notifies the UE by signaling, according to the predefined rule 2, performs power reduction according to a certain priority, and ensures transmission power of one or more uplink channels with higher priority, and reduces the priority. Transmit power of one or more upstream channels of a lower level; or
  • the UE performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces transmission power of one or more uplink channels with lower priority.
  • the priority is higher than the PUSCH in CC2.
  • the UE first reduces the transmit power of the PUSCH on the CC2, and then reduces the transmit power of the PUSCH on the CC1 until the total transmit power of the uplink channel of the UE is not higher than the maximum transmit power configured by the UE.
  • CC1 needs to transmit a PUSCH
  • CC2 also needs to transmit a PUSCH.
  • the CCl is different from the TA of CC2, so the PUSCH symbol (indicator) in subframe n on CC1
  • the PUSCH (indicator) symbols in subframe n+1 on CC2 partially overlap.
  • the eNB notifies the UE by signaling, according to the predefined rule 2, performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces one or more lower priorities.
  • the UE performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces transmission power of one or more uplink channels with lower priority.
  • the priority is higher than the PUSCH in CC1.
  • the UE first reduces the transmit power of the PUSCH on the CC1, and then reduces the transmit power of the PUSCH on the CC2 until the total transmit power of the uplink channel of the UE is not higher than the maximum transmit power configured by the UE.
  • both CC1 and CC2 need to transmit the PUSCH.
  • the CC1 is different from the TA of CC2, so the PUSCH symbol in subframe n on CC1 (marked as )versus
  • the PUSCH in subframe n on CC2 (the symbol labeled is labeled as and exceeds the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs equal power reduction on a portion where the PUSCH symbols on CC1 and CC2 overlap; or
  • the UE performs equal scaling of the power on the symbols that overlap on different channels according to a predefined rule 3, without reducing the symbol power that does not overlap. Then, the UE only scales the transmission power of the overlapping symbols (marked as Ling) in the PUSCH on CC1 and CC2 until the sum of the transmission powers of the symbols overlapping in the PUSCH on CC1 and CC2 does not exceed the UE configuration. The maximum transmit power, then the UE simultaneously transmits the PUSCH on CC1 and CC2.
  • both CC1 and CC2 need to transmit PUSCH.
  • the CC1 is different from the TA of CC2, so the PUSCH symbol in subframe n on CC1 (marked as
  • the PUSCH in subframe n on CC2 (marked as a partial overlap of symbols, the sign of the overlap is indicated by and exceeds the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction on the portion where the PUSCH symbols on CC1 and CC2 overlap;
  • the UE prioritizes the power on the overlapping symbols on different channels according to the predefined rule 3.
  • the level is reduced, and the symbol power that does not overlap is not reduced.
  • the CCSCH is the PCell and the CC2 is the SCell. Therefore, the PUSCH on CC1 has a higher priority than the PUSCH on CC2.
  • the UE first reduces the transmit power of the symbols that overlap in the PUSCH on CC2, and then reduces the transmit power of the symbols that overlap in the PUSCH on CC1 until the sum of the transmit powers of the symbols overlapping in the PUSCH on CC1 and CC2 does not.
  • the maximum transmit power configured by the UE is exceeded, and then the UE simultaneously transmits the PUSCH on CC1 and CC2.
  • both CC1 and CC2 need to transmit PUSCH.
  • the PUSCH in CC1 carries the UCI, and the PUSCH in CC2 does not carry the UCI. Since the CC1 is different from the CC2, the PUSCH symbol (indicated on the CC) in the subframe n on CC1 is on the CC2.
  • the eNB notifies the UE by signaling, and performs power reduction on the portion where the PUSCH symbols on CC1 and CC2 overlap;
  • the UE performs priority reduction on the power of the symbols that overlap on different channels according to the predefined rule 3, and does not reduce the symbol power that does not overlap.
  • the PUSCH priority on CC1 is higher than the PUSCH on CC2.
  • the UE first reduces the transmit power of the symbols that overlap in the PUSCH on CC2, and then reduces the transmit power of the symbols that overlap in the PUSCH on CC1 until the sum of the transmit powers of the symbols overlapping in the PUSCH on CC1 and CC2 does not.
  • the maximum transmit power configured by the UE is exceeded, and then the UE simultaneously transmits the PUSCH on CC1 and CC2.
  • CC1 needs to transmit PUSCH
  • subframe n+1 CC2
  • the PUSCH needs to be transmitted. Since CCl is different from CC of CC2, it is in subframe n on CCl.
  • the PUSCH symbol (labeled as ) is partially overlapped with the PUSCH in the subframe n+1 on CC2 (the symbol is partially overlapped, and the symbol of the overlap is indicated by the sum of the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction on the portion where the PUSCH symbols on CC1 and CC2 overlap;
  • the UE performs priority reduction on the power of the symbols that overlap on different channels according to the predefined rule 3, and does not reduce the symbol power that does not overlap.
  • the PUSCH priority on CC1 is higher than the PUSCH on CC2.
  • the UE first reduces the transmit power of the symbols that overlap in the PUSCH on CC2, and then reduces the transmit power of the symbols that overlap in the PUSCH on CC1 until the sum of the transmit powers of the symbols overlapping in the PUSCH on CC1 and CC2 does not.
  • the maximum transmit power configured by the UE is exceeded, and then the UE simultaneously transmits the PUSCH on CC1 and CC2.
  • CC1 needs to transmit PUSCH
  • CC2 needs to transmit PUSCH. Since CCl is different from CC of CC2, CC1
  • PUSCH symbol (labeled as) and PUSCH in subframe n+1 on CC2
  • the symbols are partially overlapped, and the symbols of the overlapping parts are marked as and exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction on the portion where the PUSCH symbols on CC1 and CC2 overlap;
  • the UE reduces the power on the symbols that overlap on different channels according to the priority, and does not reduce the symbol power that does not overlap. If the priority is set in the above manner 5, the priority of the PUSCH on CC2 is higher than the PUSCH on CC1.
  • the UE first reduces the transmit power of the symbols that overlap in the PUSCH on CC1, and then reduces the transmit power of the symbols that overlap in the PUSCH on CC2 until the sum of the transmit powers of the symbols that overlap in the PUSCH on CC1 and CC2.
  • the maximum transmit power configured by the UE is exceeded, and then the UE simultaneously transmits the PUSCH on CC1 and CC2.
  • both CC1 and CC2 need to transmit PUSCH.
  • the PUSCH on CC1 carries the newly transmitted data, and the CC on CC2 is different from the TA of CC2, so CC n
  • the eNB notifies the UE by signaling, according to the predefined rule 2, performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces one or more lower priorities.
  • the UE performs power reduction according to a certain priority, ensures transmission power of one or more uplink channels with higher priority, and reduces transmission power of one or more uplink channels with lower priority.
  • the PUSCH carries the newly transmitted data and the PUSCH in CC2 carries the retransmission data, so the PUSCH priority in CC1 is higher than the PUSCH in CC2.
  • the UE first reduces the transmit power of the PUSCH on the CC2, and then reduces the transmit power of the PUSCH on the CC1 until the total transmit power of the uplink channel of the UE is not higher than the maximum transmit power configured by the UE.
  • the UE is configured with two uplink carriers CC1 and CC2, where CC1 is a PCell and CC2 is an SCell. CCl and CC2 belong to different TA groups, where CCl belongs to TA group 1 and CC2 belongs to TA group 2.
  • CC1 is a PCell
  • CC2 is an SCell.
  • CCl and CC2 belong to different TA groups, where CCl belongs to TA group 1 and CC2 belongs to TA group 2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CCl is different from CC of CC2, the PUCCH symbol (marked as ⁇ ) in subframe n on CC1 partially overlaps with the PUSCH (marked as ⁇ ) symbol in subframe n on CC2 and exceeds the maximum configured by UE. Transmit power.
  • the eNB notifies the UE by signaling, and simultaneously sends the PUCCH on CC1 and the PUSCH on the CC2 in equal proportions, and then sends out; or
  • the UE performs a proportional reduction on the transmit power of the uplink channel on all carriers according to a predefined rule 1.
  • the UE performs a proportional reduction on the PUCCH on the CC1 and the PUSCH on the CC2 until the sum of the PUSCH transmission power on the CC1 and the PUSCH on the CC2 does not exceed the UE configuration.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CCl is different from CC of CC2, the PUCCH symbol (marked as ) in subframe n on CC1 partially overlaps with the PUSCH (marked as) symbol in subframe n on CC2. And exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction on the transmit power of the PUCCH on CC1 and the transmit power of the PUSCH on CC2 according to the priority; or
  • the UE reduces the transmit power of the uplink channel on all carriers according to a predefined rule 2 according to the priority.
  • the PUCCH priority on CC1 is higher than the PUSCH on CC2.
  • the UE first reduces the PUSCH transmit power on CC2, and then reduces the PUCCH transmission on CC1.
  • the power is transmitted until the sum of the transmit power of the PUCCH on CC1 and the transmit power of the PUSCH on CC2 does not exceed the maximum transmit power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the PUCCH symbol (marked as ⁇ ) in subframe n on CC1 partially overlaps with the PUSCH (marked as ⁇ ) symbol in subframe n on CC2 and exceeds the maximum configured by UE. Transmit power.
  • the eNB notifies the UE by signaling, and performs power reduction on the transmit power of the PUCCH on CC1 and the transmit power of the PUSCH on CC2 according to the priority; or
  • the UE reduces the transmit power of the uplink channel on all carriers according to a predefined rule 2 according to the priority.
  • the PUCCH priority on CC1 is higher than the PUSCH on CC2.
  • the UE first reduces the PUSCH transmit power on CC2, and then reduces the PUCCH transmit power on CC1 until the sum of the transmit power of the PUCCH on CC1 and the transmit power of the PUSCH on CC2 does not exceed the maximum transmit power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit a PUCCH
  • CC2 needs to transmit a PUSCH. Since CC1 is different from CC of CC2, it is in subframe n on CC1. The numbers have partially overlapped.
  • the transmit power of the PUCCH on CC1 and the transmit power of the PUSCH on CC2 in subframe n+1 exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, according to the priority, the transmit power of the PUCCH on the CC1. Power reduction with the transmit power of the PUSCH on CC2; or
  • the UE reduces the transmit power of the uplink channel on all carriers according to a predefined rule 2 according to the priority.
  • the PUCCH priority on CC1 is higher than the PUSCH on CC2.
  • the UE first reduces the PUSCH transmit power on the CC2 in the subframe n+1, and then reduces the PUCCH transmit power on the CC1 in the subframe n until the transmit power of the PUCCH on the CC1 in the subframe n and the subframe n+
  • the sum of the transmit powers of the PUSCHs on CC2 in l does not exceed the maximum transmit power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC2, the field in subframe n on CC1
  • the PUCCH symbol (marked as country) partially overlaps with the PUSCH (marked as a circumference) symbol in subframe n on CC2.
  • the transmit power of the PUCCH on CC1 and the transmit power of the PUSCH on CC2 in subframe n+1 exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction on the transmit power of the PUCCH on CC1 and the transmit power of the PUSCH on CC2 according to the priority; or
  • the UE reduces the transmit power of the uplink channel on all carriers according to a predefined rule 2 according to the priority.
  • the PUSCH priority on CC2 is higher than the PUCCH on CC1.
  • the UE first reduces the PUCCH transmit power on the CC1 in the subframe n+1, and then reduces the PUSCH transmit power on the CC2 in the subframe n until the transmit power of the PUCCH on the CC1 in the subframe n and the subframe n+
  • the sum of the transmit powers of the PUSCHs on CC2 in 1 does not exceed the maximum transmit power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • Example 2 '-6 As shown in FIG. 20, in subframe n, CC1 needs to transmit PUCCH, and CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the PUCCH symbol (marked as ⁇ ) in subframe n on CC1 partially overlaps with the PUSCH (marked as) symbol in subframe n on CC2: the overlapping symbols are labeled as Exceeds the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs equal power reduction on the transmit power of the PUCCH on CC1 and the transmit power of the symbol on which the PUSCH on CC2 overlaps; or
  • the UE performs equal power reduction on the transmit power of the symbols of the uplink channels overlapped on all carriers according to a predefined rule 3.
  • the UE reduces the transmission power of the symbols that overlap in the PUCCH on CC1 and the PUSCH on CC2, until the sum of the transmission powers of the symbols overlapped between the PUCCH on CC1 and the PUSCH on CC2 does not exceed the maximum transmission configured by the UE. Power, then the UE simultaneously transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the PUCCH symbol (marked as ) in subframe n on CC1 partially overlaps with the PUSCH (marked as) symbol in subframe n on CC2, and the overlapping symbols are marked as . And exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction according to the priority of the transmit power of the symbol of the PUCCH on the CC1 and the PUSCH on the CC2; or
  • the UE performs power reduction on the transmission power of the symbols of the overlapping of the uplink channels on all carriers according to a predefined rule 3.
  • the PUCCH on CC1 has a higher priority than the PUSCH on CC2.
  • the UE first reduces the transmit power of the overlapping symbols in the PUSCH on the CC2, and then reduces the transmit power of the overlapping symbols in the PUCCH on the CC1 until the transmit power of the overlapping symbols in the PUCCH on CC1 and the PUSCH on the CC2.
  • the sum of the transmit powers of the overlapping symbols in the medium does not exceed the maximum transmit power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CC1 is different from CC of CC2, the PUCCH symbol (marked as ⁇ ) in subframe n on CC1 and the PUSCH (marked as ⁇ ) symbol in subframe n on CC2 partially overlap: the overlapping symbols are marked as And exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction according to the priority of the transmit power of the symbol of the PUCCH on the CC1 and the PUSCH on the CC2; or
  • the UE performs power reduction on the transmission power of the symbols of the overlapping of the uplink channels on all carriers according to a predefined rule 3.
  • the PUCCH priority on CC1 is higher than the PUSCH on CC2.
  • the UE first reduces the transmit power of the overlapping symbols in the PUSCH on the CC2, and then reduces the transmit power of the overlapping symbols in the PUCCH on the CC1 until the transmit power of the overlapping symbols in the PUCCH on CC1 and the PUSCH on the CC2.
  • the sum of the transmit powers of the overlapping symbols in the medium does not exceed the maximum transmit power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit PUCCH, and in subframe n+1, CC2 needs to transmit PUSCH. Since CC1 is different from CC2, CC1
  • PUCCH symbol (labeled as) and PUSCH in subframe n+1 on CC2
  • the symbols overlap partially, and the overlapping symbols are labeled as and exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction according to the priority of the transmit power of the symbol of the PUCCH on the CC1 and the PUSCH on the CC2; or
  • the UE performs power reduction on the transmission power of the symbols of the overlapping of the uplink channels on all carriers according to a predefined rule 3.
  • the priority of the PUCCH on CC1 in subframe n is higher than the PUSCH on CC2 in subframe n+1.
  • the UE first reduces the transmit power of the overlapping symbols in the PUSCH on the CC2 in the subframe n+1, and then reduces the transmit power of the overlapping symbols in the PUCCH on the CC1 in the subframe n until the subframe n
  • the sum of the transmission power of the overlapping symbols in the PUCCH on CC1 and the transmission power of the symbols overlapping in the PUSCH on CC2 in subframe n+1 does not exceed the maximum transmission power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • CC1 needs to transmit PUCCH
  • CC2 needs to transmit PUSCH. Since CCl is different from CC of CC2, it is in subframe n on CC1.
  • the PUCCH symbol (labeled as a picture) partially overlaps with the PUSCH (marked as OFF) symbol in subframe n+1 on CC2, and the overlapping symbols are labeled as and exceed the maximum transmit power configured by the UE.
  • the eNB notifies the UE by signaling, and performs power reduction according to the priority of the transmit power of the symbol of the PUCCH on the CC1 and the PUSCH on the CC2; or
  • the UE performs power reduction on the transmission power of the symbols of the overlapping of the uplink channels on all carriers according to a predefined rule 3.
  • the priority of the PUSCH on the CC2 in the subframe n+1 is higher than the PUCCH on the CC1 in the subframe n.
  • the UE first reduces the transmit power of the overlapping symbols in the PUCCH on the CC1 in the subframe n, and then reduces the transmit power of the overlapping symbols in the PUSCH on the CC1 in the subframe n+1 until the subframe n.
  • the sum of the transmission power of the overlapping symbols in the PUCCH on CC1 and the transmission power of the symbols overlapping in the PUSCH on CC2 in subframe n+1 does not exceed the maximum transmission power configured by the UE.
  • the UE then transmits the PUCCH on CC1 and the PUSCH on CC2.
  • the embodiment of the present invention further provides an uplink signal power reduction apparatus in a carrier aggregation system.
  • the apparatus mainly includes a transmit power determining unit and a power reduction indicating unit in a base station, and power in the UE. Cut execution units, where:
  • the transmit power determining unit is configured to: when the user equipment is configured with multiple timing advances, determine whether the time domain symbols overlap on different carriers when the time domain symbols are not aligned between the uplink channels carried by different carriers, and if yes, Then determining whether the sum of the transmit powers of the uplink channels of the UE exceeds the maximum transmit power configured by the UE;
  • the power reduction indication unit is configured to: if the transmit power determining unit determines that a sum of transmit powers of the uplink channels of the UE exceeds a maximum transmit power configured by the UE, indicating that the UE generates a time domain on different carriers The transmit power of the uplink channel overlapped before and after the symbol is reduced;
  • the power reduction execution unit is configured to reduce, according to an indication of the base station, a transmit power of an uplink channel that overlaps with a time domain symbol on a different carrier.
  • the power reduction indication unit is configured to: indicate a predetermined rule of the UE power reduction
  • the power reduction execution unit is configured to: according to a predefined rule indicated by the power reduction indication unit, reduce a transmit power of an uplink channel that overlaps with a time domain symbol on a different carrier; wherein the predefined rule includes : proportionally reducing the transmit power of the uplink channel of each uplink carrier until the transmit power of the UE does not exceed the maximum transmit power configured by the UE; or, sequentially, according to the priority of the uplink channel from low to high Each uplink channel performs power reduction until the transmit power of the UE does not exceed the maximum transmit power configured by the UE; or, only the transmit power of the symbols that overlap on different channels is reduced.
  • the power reduction indication unit is configured to: indicate the UE power reduction mode, and/or a power reduction target;
  • the power reduction execution unit is configured to reduce a transmit power of the power reduction target according to the power reduction method indicated by the power reduction instruction unit;
  • the power reduction method includes: performing equal-scale reduction on transmission power of each uplink channel; and performing power reduction on each uplink channel in order of priority of the uplink channel from low to high; Includes: All upstream channels; Specifies the upstream channel.
  • the transmit power determining unit is configured to: when receiving the notification that the UE is in the power limited state, determine that the sum of the transmit powers of the uplink channels of the UE exceeds the maximum transmit power configured by the UE.
  • the power reduction indication unit is configured to, by using physical layer signaling or higher layer signaling, instruct the UE to reduce the transmit power of the uplink channel that overlaps the time domain symbols on different carriers.
  • the embodiment of the present invention further provides an apparatus for reducing uplink power in a carrier aggregation system.
  • the apparatus mainly includes a transmit power determining module and a transmit power reduction module in the UE, where:
  • the transmitting power judging module is configured to: the UE is configured with a plurality of timing advances, and when the time domain symbols are not aligned between the uplink channels carried by different carriers, and the time domain symbols overlap on the different carriers, determining the Whether the sum of the transmit powers of the uplink channels of the UE exceeds the maximum transmit power configured by the UE;
  • the transmit power reduction module is configured to: if the transmit power determining module determines that a sum of transmit powers of the uplink channels of the UE exceeds a maximum transmit power configured by the UE, time domain occurs on different carriers according to a predefined rule The transmission power of the uplink channel that overlaps before and after the symbol is reduced.
  • the transmit power reduction module is configured to reduce transmit power of uplink channels that overlap with time domain symbols on different carriers according to the following predefined rules:
  • the transmit power reduction module Performing power reduction on each uplink channel in order of priority of the uplink channel from low to high, until the transmit power of the UE does not exceed the maximum transmit power configured by the UE; or, only overlapping on different channels The transmission power of the symbol is reduced. Further, when the transmit power reduction module only reduces the transmit power of the symbols that overlap on different channels, the transmit power of the overlapping symbols is reduced proportionally, or the priority of the uplink channel corresponding to the overlapping symbols occurs. The power is reduced in order from the lowest to the highest in order of overlapping symbols on different channels.
  • the transmit power reduction module is configured to determine, according to one of the following manners, whether the sum of transmit powers of the uplink channels exceeds a maximum transmit power configured by the UE:
  • the problem of signal transmission when signal symbols transmitted in different uplink component carriers overlap in the time domain in the carrier aggregation system in which the MTA is configured is not supported in the prior art.

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Abstract

一种上行信号的发送方法,应用于载波聚合系统中,包括:在配置了两个以上的时间提前量后,用户设备根据基站发来的信令指示或者预定义的规则,对于在不同载波上将要发生时域上前后符号重叠的上行信道和/或上行信号进行速率匹配后再发送、进行丢弃后再发送或同时发送。

Description

一种上行信号的发送方法及用户设备
技术领域
本发明涉及数字通信领域, 特别是涉及 3GPP长期演进与高级 3GPP长 期演进(Long Term Evolution Advanced, 简称 LTE-A ) , 尤其涉及一种上行 信号的发送方法及用户设备。
背景技术
长期演进(Long Term Evolution, 简称为 LTE ) 系统的上行物理信道包 括:物理随机接入信道 ( Physical Random Access Channel,简称为 PARCH )、 物理上行共享信道( Physical Uplink Shared Channel, 简称为 PUSCH )及物理 上行控制信道( Physical Uplink Control Channel, 简称为 PUCCH ) 。 LTE的 上行釆用单载波 OFDM ( Orthogonal Frequency Division Multiplexing, 正交频 分复用)技术, 参考信号和数据是通过 TDM ( Time Division Multiplexing, 时分复用 ) 的方式复用在一起的。 上行参考信号分为解调参考信号 ( Demodulation Reference Signal, 简称为 DMRS )和测量参考信号( Sounding Reference Signal, 简称为 SRS ) , 其中, DMRS分为 PUCCH解调用参考信 号和 PUSCH解调用参考信号, 分别用于不同的信道传输。 DMRS的主要作 用是用于上行信道的估计和基站(简称为 eNB )端的相干检测和解调, SRS 的主要作用是用于上行信道的测量, 便于 eNB做频率选择性调度。
在 LTE ( Long Term Evolution, 长期演进) 系统中, 为了实现并保持用 户设备 ( User Equipment, 简称为 UE )与基站之间的上行同步, 基站根据自 身与各用户设备之间的传输时延发送时间提前量(Timing Advance, 简称为 TA )给各用户设备, 用户设备根据基站发送的时间提前量提前或推迟各自的 上行传输时机, 从而弥补用户终端至基站的传输时延, 使得不同用户设备的 上行信号都能在基站的接收窗口之内到达基站。
LTE-A ( LTE Advanced, 高级长期演进)系统是 LTE系统的下一代演进 系统,它引入了载波聚合( Carrier Aggregation )的概念。所述载波聚合的 LTE 系统带宽可以看作分量载波(Component Carrier )频谱, 每个分量载波也可 以称为一个服务小区 ( serving Cell ) , 也就是一个频谱可以由多个分量载频 (服务小区)聚合而成。 一个 RIO UE的资源是由频域的多个服务小区 (分 量载波)构成的, 其中一个小区称为主小区 (Primary cell, 简称为 PCell ) , 其余小区称为辅小区 (Secondary cell, 简称为 SCell ) 。
引入载波聚合技术后, 用户设备可以同时工作在多个分量载波上, 这些 分量载波在频带上可以是连续的,也可以是不连续的;可以是同一频带内的, 还可以是来自于不同频带的。 对于分量载波不连续的情况, 或者分量载波来 自于不同频带的情况, 由于各分量载波具有不同的传输特性, 各分量载波上 的时间提前量可能互不相同; 即使对于属于同一频带且在频带上连续的多个 分量载波, 如果各分量载波源自不同的射频拉远单元( Remote Radio Units, 简称为 RRU ) , 或者为了增加小区覆盖, 各分量载波分别经由不同的中继器 ( repeater ) 处理, 则各分量载波上的时间提前量也可能互不相同。 在 LTE 系统中, UE 只工作在一个载波上(对于时分双工模式是一个载波, 对于频 分双工模式包括上行、 下行一对载波, 为描述方便, 这里将上述两种情况简 称为一个载波) , 仅需要维护一条上行链路的上行同步, 而在载波聚合中, UE可以同时工作在多个分量载波上, 并且这些分量载波的 TA有可能不同, 即同时存在多个时间提前量( Multiple Timing Advance , 简称为 ΜΤΑ ) 。
在存在 ΜΤΑ的场景下, 由于不同的上行分量载波的 ΤΑ有可能不同, 意味着在不同的上行分量载波上传输的信号符号在时域上可能是不对齐的, 有可能出现不同的上行分量载波传输的信号符号在时域上前后重叠的可能。
LTE系统中, 若不同上行分量载波上传输的信号符号的传输功率超过了 UE 配置的最大传输功率, 则需要对上行信号进行功率削减。 现有的 Rel-10 版本的 LTE协议中, 只定义了多个上行载波的信号在同一个 TA下, 即各上 行载波的上行信号时域符号对齐情况下的功率削减方法。 具体如下:
1. 当 UE配置的多个上行载波上的上行信道包含 PUCCH与 PUSCH, 且 PUSCH均没有携带上行控制信息( Uplink Control Information,简称 UCI ), 则 UE不削减 PUCCH的发射功率,对所有 PUSCH的发射功率做等比例功率 削减, 直到 UE的发射功率不超过 UE配置的最大发射功率为止。
2. 当 UE配置的多个上行载波上的上行信道均为 PUSCH, 其中有携带 UCI的 PUSCH, 则 UE不削减携带 UCI的 PUSCH的发射功率, 对没有携带 UCI的所有 PUSCH的发射功率做等比例功率削减, 直到 UE的发射功率不 超过 UE配置的最大发射功率为止。
3.当 UE配置的多个上行载波上的上行信道均为 PUSCH,且所有 PUSCH 均没有携带 UCI, 则 UE对所有 PUSCH的发射功率做等比例功率削减, 直 到 UE的发射功率不超过 UE配置的最大发射功率为止。
4. 当 UE配置的多个上行载波上的上行信道包含 PUCCH与 PUSCH, 且 PUSCH中有携带 UCI的 PUSCH, 则 UE不削减 PUCCH与携带 UCI的 PUSCH功率,对没有携带 UCI的 PUSCH的发射功率做等比例功率削减, 直 到 UE的发射功率不超过 UE配置的最大发射功率为止。
5. 当 UE配置的多个上行载波上的上行信号均为 SRS时,则 UE对所有 SRS的发射功率做等比例功率削减, 直到 UE的发射功率不超过 UE配置的 最大发射功率为止。
结合以上描述, 在 MTA场景下, 若时域上前后重叠的符号的传输功率 超过了 UE配置的最大传输功率, 则需要对上行信号进行功率削减。 但在目 前的 Rel-10及之前版本的 LTE协议中, 并没有定义传输符号在时域上前后 重叠时, 重叠的符号的传输功率超过了 UE配置的最大传输功率时的功率削 减方法。 因此, 为保证配置了 MTA的载波聚合系统的正常工作, 需要定义 MTA场景下,不同上行分量载波传输的信号符号在时域上前后重叠时,重叠 的符号的传输功率超过了 UE配置的最大传输功率时的功率削减方法。 发明内容
本发明的主要目的在于提供一种上行信号的发送方法及用户设备, 以解 决存在 MTA的场景下不同上行分量载波传输的信号符号在时域上前后重叠 时的信号传输问题。
为解决上述问题, 本发明提供了一种上行信号的发送方法, 应用于载波 聚合系统中, 包括:
在配置了两个以上的时间提前量后, 用户设备根据基站发来的信令指示 或者预定义的规则, 对于在不同载波上将要发生时域上前后符号重叠的上行 信道和 /或上行信号进行速率匹配后再发送、 进行丟弃后再发送或同时发送。
相应地,本发明还提供了一种用户设备,应用于载波聚合系统中,包括: 接收模块, 其设置为: 接收基站配置的两个以上的时间提前量; 发送模块, 其设置为: 根据基站发来的信令指示或者预定义的规则, 对 于在不同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号进 行速率匹配后再发送、 进行丟弃后再发送或同时发送。
一种载波聚合系统中上行信号功率削减方法,
用户设备 (UE)配置了多个时间提前量, 当不同载波承载的上行信道之间 时域符号不对齐、 且不同载波上发生时域符号前后重叠时, 若判定所述 UE 各上行信道的发射功率之和超过所述 UE配置的最大发射功率, 则
基站指示所述 UE对不同载波上发生时域符号前后重叠的上行信道的发 射功率进行削减。
一种载波聚合系统中上行信号功率削减方法,
UE 配置了多个时间提前量, 当不同载波承载的上行信道之间时域符号 不对齐、 且不同载波上发生时域符号前后重叠时, 若判定所述 UE各上行信 道的发射功率之和超过所述 UE配置的最大发射功率, 则
UE按照预定义规则对不同载波上发生时域符号前后重叠的上行信道的 发射功率进行削减。
一种载波聚合系统中上行信号功率削减装置, 所述装置包括基站中的发 射功率判断单元和功率削减指示单元, 以及 UE中的功率削减执行单元, 其 中:
所述发射功率判断单元设置为: 用户设备配置了多个时间提前量时, 判 断不同载波承载的上行信道之间时域符号不对齐时, 不同载波上是否发生时 域符号前后重叠, 如果是, 则再判断所述 UE各上行信道的发射功率之和是 否超过所述 UE配置的最大发射功率;
所述功率削减指示单元设置为: 若所述发射功率判断单元判定所述 UE 各上行信道的发射功率之和超过所述 UE配置的最大发射功率, 则指示所述 UE对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减; 所述功率削减执行单元设置为: 根据所述基站的指示, 对不同载波上发 生时域符号前后重叠的上行信道的发射功率进行削减。
一种载波聚合系统中上行信号功率削减装置, 所述装置包括 UE中的发 射功率判断模块, 和发射功率削减模块, 其中:
所述发射功率判断模块设置为: 所述 UE配置了多个时间提前量, 当不 同载波承载的上行信道之间时域符号不对齐、 且不同载波上发生时域符号前 后重叠时, 判断所述 UE各上行信道的发射功率之和是否超过所述 UE配置 的最大发射功率;
所述发射功率削减模块设置为: 若所述发射功率判断模块判定所述 UE 各上行信道的发射功率之和超过所述 UE配置的最大发射功率, 则按照预定 义规则对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减。 附图概述
图 1是本发明实施例中一种上行信号的发送方法流程示意图;
图 2是本发明实施例中另一种上行信号的发送方法的流程示意图; 图 3是本发明中应用示例 1-1和应用示例 1-2中的上行信号示意图; 图 4是本发明中应用示例 1-3中的上行信号示意图;
图 5是本发明中应用示例 2-1和应用示例 2-2中的上行信号示意图; 图 6是本发明中应用示例 2-3中的上行信号示意图;
图 7是本发明中应用示例 3-1和应用示例 3-2和应用示例 3-3中的上行信 号示意图;
图 8是本发明中应用示例 3-4中的上行信号示意图;
图 9是本发明中应用示例 4-1和应用示例 4-2中的上行信号示意图; 图 10是本发明中应用示例 5-1和应用示例 5-2和应用示例 5-3中的上行 信号示意图;
图 11是本发明实施例的用户设备示意图; 图 12 是本发明实施方式一的载波聚合系统中上行信号功率削减方法的 流程示意图;
图 13 是本发明实施方式二的载波聚合系统中上行信号功率削减方法的 流程示意图;
图 14是本发明实施例 Γ-1、 Γ-2和 Γ-3和 Γ-l l的不同上行分量载波传 输的上行符号发生部分重叠的示意图;
图 15是本发明实施例 Γ-4和 Γ-5的不同上行分量载波传输的上行符号 发生部分重叠的示意图;
图 16是本发明实施例 Γ-6、Γ-7和 Γ-8的不同上行分量载波传输的上行 符号发生部分重叠的示意图;
图 17是本发明实施例 Γ-9和 Γ-10的不同上行分量载波传输的上行符号 发生部分重叠的示意图;
图 18是本发明实施例 2'-1、2'-2和 2'-3的不同上行分量载波传输的上行 符号发生部分重叠的示意图;
图 19是本发明实施例 2'-4和 2'-5的不同上行分量载波传输的上行符号 发生部分重叠的示意图;
图 20是本发明实施例 2'-6、2'-7和 2'-8的不同上行分量载波传输的上行 符号发生部分重叠的示意图;
图 21是本发明实施例 2'-9和 2'-10的不同上行分量载波传输的上行符号 发生部分重叠的示意图;
图 22是载波聚合系统中上行信号功率削减装置示意图;
图 23是载波聚合系统中上行信号功率削减装置示意图。 本发明的较佳实施方式
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
一种上行信号的发送方法,应用于载波聚合系统中,如图 1及图 2所示, 包括:
在配置了两个以上的 TA后, UE根据 eNB的信令指示或者预定义的规 则,对于在不同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信 号进行速率匹配后再发送、 进行丟弃后再发送或同时发送。 其中, 上述上行 信道可以为 PUSCH、 PUCCH和 /或 PRACH; 上述上行信号可以为 SRS, 该 SRS可以为周期 SRS, 也可以为非周期 SRS。
在具体实现时, 上述 eNB的信令指示可以为物理信令, 也可以为高层信 令指示, 信令内容可以为触发指示和 /或发送指示。
当信令内容为发送指示时, 该发送指示可以指示允许不同载波上将要发 生时域上前后符号重叠的上行信道和 /或上行信号同时发送, 也可以指示 UE 对不同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号进行 速率匹配后再发送、 进行丟弃后再发送或同时发送。
其中, 上述同时发送具体为: 对将要发生符号在时域上前后重叠的上行 信道和 /或上行信号不进行处理, 直接发送上行信道和 /或上行信号; 上述速 率匹配具体为:对将要发生符号在时域上前后重叠的上行信道和 /或上行信号 进行速率匹配( Rate Matching, 简称 RM ) , 留空上行信道的某一个特定符 号, 在该符号内不进行传输; 上述丟弃具体为: 丟弃特定的符号将要在时域 上前后重叠的上行信道和 /或上行信号, 对被丟弃的上行信道和 /或上行信号 不进行传输。
进一步的, 上述预定义的规则分别为触发规则与发送规则, 在满足触发 规则的前提下才按照发送规则进行处理; 其中, 预定义的规则中的触发规则 至少为下列规则之一:
1 ) eNB为 UE配置的不同上行载波的 TA值之差值超过某一预设门限值; 2 ) UE发现配置的不同上行载波之间的实际发射时间之差超过某一预 设门限值。
1 ) 当不同载波上将要发生时域上前后符号重叠的上行信道均为 PUSCH 时, UE可选用下述任一方式进行处理:
a ) UE同时发送不同载波上的 PUSCH;
b ) UE按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较 高的 PUSCH。 对于优先级相同的 PUSCH将要发生时域上前后符号重叠时, UE同时发送该优先级相同的 PUSCH;
c ) UE按照一定的优先级, 对优先级较低的 PUSCH进行速率匹配, 留 空优先级较低的 PUSCH中的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH。优先级相同的 PUSCH将要发生时域上前后 符号重叠时, UE同时发送该优先级相同的 PUSCH。
需要说明的是,在本规则 1 )中的优先级至少为下述优先级的其中一种:
I )按照是否携带上行控制信息(Uplink Control Information,简称 UCI ) 确定的优先级, 其中: 携带 UCI的 PUSCH的优先级高于没有携带 UCI的 PUSCH的优先级;
II )按照携带 PUSCH的载波确定的优先级, 其中: PCell上的 PUSCH 的优先级高于 SCell上的 PUSCH的优先级;
III )按照子帧索引确定的优先级, 其中: 前一子帧的 PUSCH的优先级 高于后一子帧的 PUSCH的优先级;
IV )按照子帧索引确定的优先级, 其中: 后一子帧的 PUSCH的优先级 高于前一子帧的 PUSCH的优先级;
V )按照是否新传输数据确定的优先级,其中:携带新传输数据的 PUSCH 的优先级高于携带重传数据的 PUSCH的优先级。
2 ) 当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH 与 PUCCH时, UE可选用下述任一方式进行处理:
a ) UE同时发送不同载波上的 PUSCH和 PUCCH;
b ) UE丟弃 PUSCH, 只发送 PUCCH;
c ) UE对 PUSCH进行速率匹配,留空 PUSCH中的与 PUCCH符号发生 重叠的符号, 然后发送不同载波上的 PUSCH和 PUCCH。 当多个不同载波上的 PUSCH与 PUCCH将要发生时域上前后符号重叠, 则 UE按照本方式 c )对与 PUCCH 重叠的所有 PUSCH进行相同操作后, 若 PUSCH之间还存在时域上前后符号重叠的情况, 则按照规则 1 )对不同载波 上将要在时域上前后符号重叠的 PUSCH进行处理。
3 ) 当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH 与 SRS时, UE可选用下述任一方式进行处理:
a ) UE同时发送不同载波上的 PUSCH与 SRS;
13 ) 11£丟弃81 8, 只发送 PUSCH;
c ) UE丟弃 PUSCH, 只发送 SRS;
d ) UE对 PUSCH进行速率匹配, 留空 PUSCH中与 SRS发生重叠的符 号, 然后发送不同载波上的 PUSCH和 SRS。
当多个不同载波上的 PUSCH与多个不同载波上的 SRS将要发生时域上 前后符号重叠, 则 UE按照本方式 c )对重叠的所有 SRS与所有 PUSCH进 行操作后,若 PUSCH之间还存在时域上前后符号重叠的情况,则按照规则 1 ) 对不同载波上将要在时域上前后符号重叠的 PUSCH进行处理。
4 ) 当不同载波上将要发生时域上前后符号重叠的上行信道为 PUCCH 与 SRS时, UE可选用下述任一方式进行处理:
a ) UE同时发送不同载波上的 PUCCH与 SRS;
13 ) 11£丟弃81 8, 只发送 PUCCH;
5 ) 当多个不同载波上的 SRS与 PUCCH将要发生时域上的前后符号重 叠时, UE可选用下述任一方式进行处理:
a ) UE同时发送多个不同载波上的 SRS与 PUCCH;
b ) UE丟弃所有 SRS, 只发送 PUCCH;
c ) UE丟弃所有将要发生前后符号重叠的周期 SRS, 同时发送所有将要 发生前后符号重叠的非周期 SRS与 PUCCH。
在本实施例中, 一种用户设备, 如图 11所示, 应用于载波聚合系统中, 包括: 接收模块, 用于接收基站配置的两个以上的时间提前量;
发送模块, 用于根据基站发来的信令指示或者预定义的规则, 对于在不 同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号进行速率 匹配后再发送、 进行丟弃后再发送或同时发送。
较佳地, 所述信令指示为发送指示, 所述发送指示用于指示所述用户设 备对于不同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号 进行同时传输, 或者, 用于指示所述用户设备按照一定规则对不同载波上将 要发生时域上前后符号重叠的上行信道和 /或上行信号进行速率匹配后再发 送、 进行丟弃后再发送或同时发送。
较佳地, 所述发送模块对不同载波上将要发生时域上前后符号重叠的上 行信道和 /或上行信号进行速率匹配, 具体包括:
所述发送模块对将要发生符号在时域上前后重叠的上行信道和 /或上行 信号, 留空上行信道的某一个特定符号, 在该符号内不进行传输。
较佳地, 所述发送模块对不同载波上将要发生时域上前后符号重叠的上 行信道和 /或上行信号进行丟弃, 具体包括:
所述发送模块丟弃特定的符号在时域上前后重叠的上行信道和 /或上行 信号, 在被丟弃符号上不对相应的上行信道和 /或上行信号进行传输。
较佳地, 所述预定义的规则包括触发规则与发送规则; 在满足所述触发 规则的情况下, 按照所述发送规则对所述上行信道和 /或上行信号进行处理; 所述触发规则至少为下列规则之一:
所述基站为所述用户设备配置的不同上行载波时间提前量的值之差值超 过第一预设门限值; 或者,
所述用户设备发现配置的不同上行载波之间的实际发射时间之差超过第 二预设门限值。
较佳地, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为物理上行共享 信道(PUSCH ) 时, 所述发送模块选用下述任一方式进行处理: 方式一: 所述发送模块同时发送不同载波上的 PUSCH;
方式二: 所述发送模块按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述发送模块同时发送所述优先级相同的 PUSCH;
方式三: 所述发送模块按照一定的优先级, 留空优先级较低的 PUSCH 中的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述发 送模块同时发送所述优先级相同的 PUSCH。
较佳地, 当按照是否携带上行控制信息确定优先级时, 携带上行控制信 息的 PUSCH的优先级高于没有携带上行控制信息的 PUSCH的优先级;
当按照携带 PUSCH的载波确定优先级时,主服务小区上的 PUSCH的优 先级高于辅服务小区上的 PUSCH的优先级;
当按照子帧索引确定优先级时, 前一子帧的 PUSCH的优先级高于后一 子帧的 PUSCH的优先级;
当按照子帧索引确定优先级时, 后一子帧的 PUSCH的优先级高于前一 子帧的 PUSCH的优先级;
当按照是否新传输数据确定的优先级时, 携带新传输数据的 PUSCH的 优先级高于携带重传数据的 PUSCH的优先级。
较佳地, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH与物 理上行控制信道(PUCCH ) 时, 所述发送模块选用下述任一方式进行处理: 方式一: 所述发送模块同时发送不同载波上的 PUSCH和 PUCCH;
方式二: 所述发送模块丟弃 PUSCH, 只发送 PUCCH;
方式三: 所述发送模块进行速率匹配, 留空 PUSCH中的与 PUCCH符 号发生重叠的符号, 然后发送不同载波上的 PUSCH和 PUCCH。
较佳地, 当两个以上不同载波上的 PUSCH与 PUCCH将要发生时域上 前后符号重叠时, 若按照所述方式三对与所述 PUCCH 重叠的所有 PUSCH 进行处理后, 所述两个以上 PUSCH之间还存在将要在时域上前后符号重叠 的情况, 则选用下述任一方式对所述两个以上 PUSCH进行处理:
方式 1 : 所述发送模块同时发送不同载波上的 PUSCH;
方式 2: 所述发送模块按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述发送模块同时发送所述优先级相同的 PUSCH;
方式 3: 所述发送模块按照一定的优先级, 留空优先级较低的 PUSCH中 的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述发 送模块同时发送所述优先级相同的 PUSCH。
较佳地, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH与测 量参考信号 (SRS ) 时, 所述发送模块可选用下述任一方式进行处理:
方式一: 所述发送模块同时发送不同载波上的 PUSCH与 SRS;
方式二: 所述发送模块丟弃 SRS, 只发送 PUSCH;
方式三: 发送模块丟弃 PUSCH, 只发送 SRS;
方式四: 所述发送模块留空 PUSCH中与 SRS发生重叠的符号, 然后发 送不同载波上的 PUSCH和 SRS。
较佳地,当两个以上不同载波上的 PUSCH与两个以上不同载波上的 SRS 将要发生时域上前后符号重叠时,若按照所述方式四对重叠的所有 SRS与所 述 PUSCH进行处理后,所述两个以上 PUSCH之间还存在将要在时域上前后 符号重叠的情况,则所述发送模块选用下述任一方式对所述两个以上 PUSCH 进行处理:
方式 1 : 所述发送模块同时发送不同载波上的 PUSCH;
方式 2: 所述发送模块按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述发送模块同时发送所述优先级相同的 PUSCH; 方式 3: 所述发送模块按照一定的优先级, 留空优先级较低的 PUSCH中 的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述发 送模块同时发送所述优先级相同的 PUSCH。
较佳地, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUCCH 与 SRS时, 所述发送模块选用下述任一方式进行处理:
方式一: 所述发送模块同时发送不同载波上的 PUCCH与 SRS;
方式二: 所述发送模块丟弃 SRS, 只发送 PUCCH。
较佳地, 所述发送规则包括:
当多个不同载波上的 SRS与 PUCCH将要发生时域上的前后符号重叠时, 所述发送模块选用下述任一方式进行处理:
方式一: 所述发送模块同时发送多个不同载波上的 SRS与 PUCCH;
方式二: 所述发送模块丟弃所有 SRS, 只发送 PUCCH;
方式三: 所述发送模块丟弃所有将要发生前后符号重叠的周期 SRS, 同 时发送所有将要发生前后符号重叠的非周期 SRS与 PUCCH。
优选地, 所述预定义的规则包括触发规则与发送规则; 在满足所述触发 规则的情况下, 按照所述发送规则对所述上行信道和 /或上行信号进行处理; 所述触发规则至少为下列规则之一:
所述基站为所述用户设备配置的不同上行载波时间提前量的值之差值超 过第一预设门限值; 或者,
所述用户设备发现配置的不同上行载波之间的实际发射时间之差超过第 二预设门限值;
或者, 用户设备 (UE)配置了多个时间提前量, 当不同载波承载的上行信 道之间时域符号不对齐、 且不同载波上发生时域符号前后重叠时, 若判定所 述 UE各上行信道的发射功率之和超过所述 UE配置的最大发射功率。
下面结合附图釆用几个应用示例对本发明进行进一步说明。 应用示例 1
在下述应用示例 1-1~1-5中, UE配置了两个上行载波 CC1与 CC2, 其 中 CC1为 PCell, CC2为 SCelL CCl与 CC2属于不同的 TA组, 其中 CC1 属于 TA组 1 , CC2属于 TA组 2。
应用示例 1-1
如图 3所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 由于 CCl 与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号与 CC2上的子 帧 n中的 PUSCH符号发生了部分重叠。 图 3中 TAG表示 TA组, 下述各图 中亦如此。
若此时 eNB通过信令指示 UE, 将 CC1和 CC2上的 PUSCH同时发送, 或者 UE按照预定义的规则 1 ) , 将 CC1和 CC2上的 PUSCH同时发送, 则 UE直接发送 CC1与 CC2上的 PUSCH。
应用示例 1-2
如图 3所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 由于 CCl 与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号与 CC2上的子 帧 n中的 PUSCH符号发生了部分重叠。且 CC1中的 PUSCH承载 UCI, CC2 中的 PUSCH没有承载 UCI。
若此时 eNB通过信令指示 UE按照优先级进行丟弃其中一个 CC上的 PUSCH, 或者 UE按照预定义的规则 1 ) 中的方式 b )根据优先级进行丟弃 其中一个 CC上的 PUSCH, 则:
当此时优先级的制定方法为方法 II ) 时, 即按照承载 PUSCH的载波来 制定优先级, 由于 CC1为 PCell, 因此 CCl上的 PUSCH优先级比 CC2上的 PUSCH高, 此时 UE会丟弃 CC2上的 PUSCH, 只发送 CCl上的 PUSCH;
当此时优先级的制定方法为方法 I )时, 即按照是否承载 UCI来制定优 先级,由于 CC1中的 PUSCH承载 UCI,因此 CC1上的 PUSCH优先级比 CC2 上的 PUSCH高,此时会 UE丟弃 CC2上的 PUSCH,只发送 CCl上的 PUSCH。
应用示例 1-3
如图 4所示, 在子帧 n中, CC1需要传输 PUSCH, 在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH的最后一个符号与 CC2上的子帧 n+1中的 PUSCH的第一个符号发 生了部分重叠。 且 CC1中的 PUSCH承载 UCI, CC2中的 PUSCH没有承载 UCI。
若此时 eNB通过信令指示 UE按照优先级对其中一个 PUSCH中进行速 率匹配, 留空其与另一 PUSCH符号重叠的符号, 或者 UE按照预定义的规 则 1 ) 中的方式 c ) , 按照优先级对其中一个 PUSCH中进行速率匹配, 留空 其与另一 PUSCH符号重叠的符号, 则:
当此时优先级的制定方法为方法 I )时, 即按照是否承载 UCI来制定优 先级,由于 CC1中的 PUSCH承载 UCI,因此 CC1上的 PUSCH优先级比 CC2 上的 PUSCH高, 因此 UE对 CC2上的 PUSCH进行速率匹配, 留空 CC2上 的 PUSCH中的第一个符号, 然后发送子帧 n中的 CC1与子帧 n+1中的 CC2 上的 PUSCH中的其他符号;
当此时优先级的制定方法为方法 II ) 时, 即按照承载 PUSCH的载波来 制定优先级, 由于 CC1为 PCell, 因此 CC1上的 PUSCH优先级比 CC2上的 PUSCH高,因此 UE对 CC2上的 PUSCH进行速率匹配,留空 CC2上的 PUSCH 中的第一个符号,然后发送子帧 n中的 CC1与子帧 n+1中的 CC2上的 PUSCH;
当此时优先级的制定方法为方法 ΠΙ )时,即通过子帧索引来制定优先级, 规定前一子帧的 PUSCH高于后一子帧的 PUSCH, 则由于 CC1上的 PUSCH 相应的子帧索引为 n,而 CC2上的 PUSCH相应的子帧索引为 n+1 ,因此 CC1 上的 PUSCH优先级比 CC2上的 PUSCH优先级高, 因此 UE对 CC2上的 PUSCH进行速率匹配, 留空 CC2上的 PUSCH中的第一个符号, 然后发送 子帧 n中的 CC1与子帧 n+1中的 CC2上的 PUSCH;
当此时优先级的制定方法为方法 IV ) , 即通过子帧索引来制定优先级, 规定后一子帧的 PUSCH高于前一子帧的 PUSCH, 则由于 CC1上的 PUSCH 相应的子帧索引为 n,而 CC2上的 PUSCH相应的子帧索引为 n+1 ,因此 CC2 上的 PUSCH优先级比 CC1上的 PUSCH优先级高, 因此 UE对 CC1上的 PUSCH进行速率匹配, 留空 CC1上的 PUSCH中的最后一个符号, 然后发 送子帧 n中的 CC1与子帧 n+1中的 CC2上的 PUSCH。 应用示例 1-4
如图 3所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 由于 CC1 与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号与 CC2上的子 帧 n中的 PUSCH符号发生了部分重叠。其中 CC1中的 PUSCH为新传数据, 而 CC2中的 PUSCH为重传数据。
若此时 eNB通过信令指示 UE按照优先级对其中一个 PUSCH中进行速 率匹配, 留空其与另一 PUSCH符号重叠的符号, 或者 UE按照预定义的规 则 1 ),根据优先级对其中一个 PUSCH中进行速率匹配,留空其与另一 PUSCH 符号重叠的符号, 则当此时优先级的制定方式为方法 VI )时, 由于 CC1中的 PUSCH为新传数据,而 CC2中的 PUSCH为重传数据,因此 CC1中的 PUSCH 优先级比 CC2中的 PUSCH优先级高, 则 UE会丟弃 CC2中的 PUSCH, 只 发送 CC1中的 PUSCH。
应用示例 1-5
如图 4所示, 在子帧 n中, CC1需要传输 PUSCH, 在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH的最后一个符号与 CC2上的子帧 n+1中的 PUSCH的第一个符号发 生了部分重叠。 其中 CC1中的 PUSCH为新传数据, 而 CC2中的 PUSCH为 重传数据。
若此时 eNB通过信令指示 UE按照优先级进行丟弃其中一个 CC上的 PUSCH, 或者 UE按照预定义的规则 1 )中的方式 c ) , 根据优先级对其中一 个 PUSCH中进行速率匹配, 留空其与另一 PUSCH符号重叠的符号, 则当此 时优先级的制定方式为方法 VI ) 时, 由于 CC1中的 PUSCH为新传数据, 而 CC2中的 PUSCH为重传数据, 因此 CC1 中的 PUSCH优先级比 CC2中的 PUSCH优先级高, 则 UE对子帧 n+1中的 CC2中的 PUSCH做速率匹配, 留 空子帧 n+1中的 CC2的 PUSCH的第一个符号, 发送子帧 n中的 CC1中的 PUSCH与子帧 n+1中的 CC2中的 PUSCH。
应用示例 2
在下述应用示例 2-1~2-3中, UE配置了两个上行载波 CC1与 CC2, 其 中 CC1为 PCell, CC2为 SCelL CC1与 CC2属于不同的 TA组, 其中 CC1 属于 TA组 1 , CC2属于 TA组 2。
应用示例 2-1
如图 5所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CC1与 CC2的 TA不同,因此 CC1上的子帧 n中的 PUCCH符号与 CC2 上的子帧 n中的 PUSCH符号发生了部分重叠。
若此时 eNB通过信令指示 UE将 CC1上的 PUCCH与 CC2上的 PUSCH 同时发送,或者 UE按照预定义的规则 2 )中的方式 a ) ,将 CC1上的 PUCCH 与 CC2上的 PUSCH同时发送, 则 UE直接发送 CC1上的 PUCCH与 CC2 上的 PUSCH。
应用示例 2-2
如图 5所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CC1与 CC2的 TA不同,因此 CC1上的子帧 n中的 PUCCH符号与 CC2 上的子帧 n中的 PUSCH符号发生了部分重叠。
若此时 eNB通过信令指示 UE丟弃 CC2上的 PUSCH,只发送 CC1上的 PUCCH, 或者 UE按照预定义的规则 2 )中的方式 b ) , 丟弃与 PUCCH发生 符号重叠的 PUSCH,则 UE丟弃 CC2上的 PUSCH,只发送 CC1上的 PUCCH。
应用示例 2-3
如图 6所示, 在子帧 n中, CC1需要传输 PUCCH, 而在子帧 n+1中, CC2需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n 中的 PUCCH的最后一个符号与 CC2上的子帧 n+1中的 PUSCH的第一符号 发生了部分重叠。
若此时 eNB通过信令指示 UE对 CC2上的 PUSCH进行速率匹配, 留空 CC2中子帧 n+1上的 PUSCH的第一个符号, 然后发送子帧 n中 CC1上的 PUCCH与子帧 n+1中 CC2上的 PUSCH, 或者 UE按照预定义的规则 2 ) 中 的规则 c ) , 对与 PUCCH发送前后符号重叠的 PUSCH做速率匹配, 留空与 PUCCH重叠的 PUSCH符号, 则 UE对 CC2上的 PUSCH做速率匹配, 留空 CC2的 PUSCH的第一个符号, 然后发送子帧 n中 CC1上的 PUCCH与子帧 n+1中 CC2上的 PUSCH。 应用示例 3
在下述应用示例 3-1 3-4中, UE配置了两个上行载波 CC1与 CC2, 其 中 CC1为 PCell, CC2为 SCelL CC1与 CC2属于不同的 TA组, 其中 CC1 属于 TA组 1 , CC2属于 TA组 2。
应用示例 3-1
如图 7所示,在子帧 n中, CC1需要传输 PUSCH, CC2需要传输 SRS。 由于 CC1与 CC2的 TA不同,因此 CC1上的子帧 n中的 PUSCH符号与 CC2 上的子帧 n中的 SRS符号前后重叠。
若此时 eNB通过信令指示 UE将 CC1上的 PUSCH与 CC2上的 SRS同 时发送, 或者 UE按照预定义的规则 3 ) 中的方式 a ) , 将 CC1上的 PUSCH 与 CC2上的 SRS同时发送, 则 UE将 CC1上的 PUSCH与 CC2上的 SRS同 时发送。
应用示例 3-2
如图 7所示,在子帧 n中, CC1需要传输 PUSCH, CC2需要传输 SRS。 由于 CC1与 CC2的 TA不同,因此 CC1上的子帧 n中的 PUSCH符号与 CC2 上的子帧 n中的 SRS符号前后重叠。
若此时 eNB通过信令指示 UE丟弃 CC1上的 PUSCH,只发送 CC2上的 SRS, 或者 UE按照预定义的规则 3中的方式 c ) , 丟弃与 SRS发生时域前 后符号重叠的 PUSCH,则 UE丟弃 CC1上的 PUSCH,只发送 CC2上的 SRS。
应用示例 3-3
如图 7所示,在子帧 n中, CC1需要传输 PUSCH, CC2需要传输 SRS。 由于 CC1与 CC2的 TA不同,因此 CC1上的子帧 n中的 PUSCH符号与 CC2 上的子帧 n中的 SRS符号前后重叠。
若此时 eNB通过信令指示 UE丟弃 CC2上的 SRS, 只发送 CC1上的 PUSCH, 或者 UE按照预定义的规则 3 )中的方式 b ) , 丟弃与 PUSCH发生 时域前后符号重叠的 SRS,则 UE丟弃 CC2上的 SRS,只发送 CC1上的 PUSCH。
应用示例 3-4
如图 8所示, 在子帧 n中, CC1需要传输 SRS, 在子帧 n+1中, CC2需 要传输 PUSCH。 由于 CCl与 CC2的 TA不同, 因此 CCl上的子帧 n中的 SRS符号与 CC2上的子帧 n+1中的 PUSCH符号重叠。
若此时 eNB通过信令指示 UE对 CC2上的 PUSCH做速率匹配, 留空 PUSCH中与 CC1的 SRS将要在时域上前后重叠的符号, 或者 UE按照预定 义的规则 3 ) 中的方式 d ) , 留空速率匹配与 SRS符号将要在时域上前后重 叠的 PUSCH符号, 则 UE对 CC2上的 PUSCH进行速率匹配, 留空 CC2上 的 PUSCH的第一个符号,并发送子帧 n中 CC1上的 SRS与子帧 n+1中 CC2 上的 PUSCH。
应用示例 4
在下述应用示例 4-1及 4-2中, UE配置了两个上行载波 CC1与 CC2, 其中 CC1为 PCell, CC2为 SCelL CCl与 CC2属于不同的 TA组,其中 CC1 属于 TA组 1 , CC2属于 TA组 2。
应用示例 4-1
如图 9所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 SRS。 由于 CCl与 CC2的 TA不同,因此 CC1上的子帧 n中的 PUCCH符号与 CC2 上的子帧 n中的 SRS符号前后重叠。
若此时 eNB通过信令指示 UE将 CC1上的 PUCCH与 CC2上的 SRS同 时发送, 或者 UE按照预定义的规则 4 ) 中的方式 a ) , 将 CCl上的 PUCCH 与 CC2上的 SRS同时发送,则 UE将 CC1上的 PUCCH与 CC2上的 SRS同 时发送。
应用示例 4-2
如图 9所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 SRS。 由于 CCl与 CC2的 TA不同,因此 CC1上的子帧 n中的 PUCCH符号与 CC2 上的子帧 n中的 SRS符号前后重叠。
若此时 eNB通过信令指示 UE丟弃 CC2上的 SRS, 只发送 CC1上的
PUCCH, 或者 UE按照预定义的规则 4 )中的方式 b ) , 丟弃与 PUCCH发生 前后符号重叠的 SRS, 则 UE丟弃 CC2上的 SRS, 发送 CC1上的 PUCCH。
应用示例 5 在下述应用示例 5-1 5-3 中, UE配置了三个上行载波, 分别为 CC1、 CC2及 CC3 , 其中 CC1为 PCell, CC2和 CC3为 SCelL 其中 CC1属于 TA 组 1 , CC2和 CC3属于 TA组 2。
应用示例 5-1
如图 10所示, 在子帧 n中, CC1需要传输 PUCCH, CC2和 CC3都需 要传输 SRS, 其中 CC2为非周期 SRS, CC3为周期 SRS。 由于 CC1与 CC2 以及 CC3的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号与 CC2上的 子帧 n中的 SRS以及 CC3上的子帧 n中的 SRS发生符号前后重叠。
若此时 eNB通过信令指示 UE将 CC1上的 PUCCH与 CC2和 CC3上的 SRS同时发送, 或者 UE按照预定义的规则 5 )中的方式 a ) , 同时发送 SRS 与 PUCCH,则 UE将 CC1上的 PUCCH与 CC2和 CC3上的 SRS同时发送。
应用示例 5-2
如图 10所示, 在子帧 n中, CC1需要传输 PUCCH, CC2和 CC3都需 要传输 SRS, 其中 CC2为非周期 SRS, CC3为周期 SRS。 由于 CC1与 CC2 以及 CC3的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号与 CC2上的 子帧 n中的 SRS以及 CC3上的子帧 n中的 SRS发生符号前后重叠。
若此时 eNB通过信令指示 UE将 CC2和 CC3上的 SRS丟弃, 只发送 CC1上的 PUCCH, 或者 UE按照预定义的规则 5 ) 中的方式 b )丟弃 SRS, 只发送 PUCCH,则 UE将 CC2和 CC3上的 SRS丟弃,只发送 CC1上的 PUCCH。
应用示例 5-3
如图 10所示, 在子帧 n中, CC1需要传输 PUCCH, CC2和 CC3都需 要传输 SRS, 其中 CC2为非周期 SRS, CC3为周期 SRS。 由于 CC1与 CC2 以及 CC3的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号与 CC2上的 子帧 n中的 SRS以及 CC3上的子帧 n中的 SRS发生符号前后重叠。
若此时 eNB通过信令指示 UE将 CC3上的周期 SRS丟弃, 只发送 CC1 上的 PUCCH和 CC2上的非周期 SRS, 或者 UE按照预定义的规则 5 ) 中的 方式 c ) , 丟弃周期 SRS, 只发送 PUCCH和非周期 SRS, 则 UE将 CC3上 的周期 SRS丟弃, 发送 CC1上的 PUCCH和 CC2上的非周期 SRS。 本实施方式提供一种载波聚合系统中上行信号功率削减方法, 釆用以下 方案:
用户设备配置了多个 TA, 当不同载波承载的上行信道之间时域符号不 对齐、 且不同载波上发生时域符号前后重叠时, 若判断出 UE各上行信道的 发射功率之和超过 UE配置的最大发射功率, 则
基站指示 UE对不同载波上发生时域符号前后重叠的上行信道的发射功 率进行削减。
具体地, 基站可以通过物理层信令或者高层信令指示 UE对不同载波上 发生时域符号前后重叠的上行信道的发射功率进行削减。
进一步地, 基站可以指示 UE功率削减的预定义规则;
则 UE根据基站指示的预定义规则, 对不同载波上发生时域符号前后重 叠的上行信道的发射功率进行削减。
或者, 基站也可以指示 UE功率削减方式、 和 /或功率削减对象; 则 UE根据基站指示的功率削减方式, 对功率削减对象(即指定的上行 信道) 的发射功率进行削减。
如图 12所示,本实施方式的载波聚合系统中上行信号功率削减方法,主 要包括以下步骤:
步骤一, 在配置了 MTA的载波聚合系统中, UE发现承载于不同的上行 载波中的上行信号之间发生了时域符号前后重叠,且重叠的符号的发射功率 之和超过 UE配置的最大发射功率。
步骤二, eNB通过信令通知 UE, 如何对上行信号的发射功率进行功率 削减;
例如, 基站通知 UE按照指定的预定义规则进行功率削减, 或者, 基站 指示 UE对指定的功率削减对象(上行信道) 的发射功率进行功率削减, 并 可指定功率削减方式。
其中, 基站可以指示 UE对全部上行信道的发射功率进行削减; 也可以 指示 UE仅对不同信道上发生重叠的符号上的功率进行削减, 不削减没有发 生重叠的符号功率。 其中, 基站指定的功率削减方式, 可以是: 对不同载波上的上行信道发 射功率进行等比例削减; 按照上行信道的优先级进行功率削减, 先削减优先 级较低上行信道的发射功率,后削减优先级较高的上行信道的发射功率,等。
步骤三, UE按照 eNB的指示, 对承载于不同上行载波中的上行信号的 发射功率进行功率削减。
步骤四, 削减至 UE的发射功率不超过 UE配置的最大发射功率后, UE 进行发送上行信号。
进一步的, 上述实施方式中, 若 UE判断各上行信道的发射功率之和超 过 UE配置的最大发射功率, 则 UE可以通过物理层上行信令通知基站, 使 基站得知 UE处于功率受限状态。
本发明另一实施方式提供的载波聚合系统中上行信号功率削减方法, 釆 用以下方案:
用户设备配置了多个 TA, 当不同载波承载的上行信道之间时域信号不 对齐、 且不同载波上发生时域符号前后重叠时, 若判断出 UE各上行信道的 发射功率之和超过 UE配置的最大发射功率, 则
UE按照预定义规则对不同载波上发生时域符号前后重叠的上行信道的 发射功率进行削减。
如图 13所示,本实施方式提供一种载波聚合系统中上行信号功率削减方 法, 釆用以下方案:
步骤一, 在配置了 MTA的载波聚合系统中, UE发现承载于不同的上行 载波中的上行信号之间发生了时域符号前后重叠,且重叠的符号的发射功率 之和超过 UE配置的最大发射功率。
步骤二, UE按照预定义的规则, 对承载于不同上行载波中的上行信号 的发射功率进行功率削减。
其中, UE 可以对全部上行信道的发射功率进行等比例削减; 或者, 也 可以按照上行信道的优先级进行功率削减, 先削减优先级较低上行信道的发 射功率, 后削减优先级较高的上行信道的发射功率; 或者, 还可以仅对不同 信道上发生重叠的符号上的功率进行削减,不削减没有发生重叠的符号功率; 等。
步骤三, 削减至 UE的发射功率不超过 UE配置的最大发射功率后, UE 进行发送上行信号。
进一步的, 上述实施方式中, 所述的上行信道为 PUSCH和 /或 PUCCH 和 /或 PRACH。
进一步的, 上述实施方式中, UE 判断各上行信道的发射功率之和是否 超过 UE配置的最大发射功率的方法, 可以为以下方法其中一种:
1 ) UE 判断当前子帧内各上行载波承载的上行信道功率之和是否超过 UE配置的最大发射功率。
2 ) UE判断当前子帧内各上行载波承载的上行信道功率与下一子帧准备 发射的各上行载波承载的上行信道功率之和是否超过 UE配置的最大发射功 率。
进一步的, 上述实施方式中, 上述预定义的规则至少为下列规则之一: 规则 1 , 等比例降低各上行载波的上行信道的发射功率, 直至 UE的发 射功率不超过 UE配置的最大发射功率为止。
规则 2, 按照一定的优先级对各上行信道进行功率削减, 先削减优先级 较低的一个或多个上行信道的发射功率, 后削减优先级较高的一个或多个上 行信道的发射功率。
规则 3 , 仅对不同信道上发生重叠的符号上的发射功率进行削减, 不削 减没有发生重叠的符号的发射功率。
更进一步的, 上述预定义的规则 2中, 处于同一优先级的上行信道数量 可以为一个, 也可以为多个。
更进一步的, 上述预定义的规则 2中, 若削减优先级较低的一个或多个 上行信道的发射功率已经可以使 UE上行信道的总发射功率不超过 UE配置 的最大发射功率, 则不削减优先级较高的一个或多个上行信道的发射功率。
更进一步的, 上述预定义的规则 2中, 若功率削减的对象为多个上行信 道, 则功率削减方法为等比例削减。 更进一步的, 上述规则 2中的优先级制定方法为下述方式的其中一种或 多种相互组合:
制定方式 1. 按照信道类型制定的优先级, 其优先级从高到低可以为:
PUCCH、 PUSCH。
制定方式 2. 按照携带上行信道的载波制定的优先级, 其优先级从高到 低可以为: PCelK SCelL
制定方式 3. 若时域上发生前后符号重叠的上行信道为多个 PUSCH, 则 按照是否携带 UCI 制定优先级, 其优先级从高到低可以为: 携带 UCI 的 PUSCH, 不携带 UCI的 PUSCH。
制定方式 4. 按照子帧索引制定的优先级, 其优先级从高到低可以为: 前一子帧中的上行信道, 后一子帧中的上行信道。
制定方式 5. 按照子帧索引制定的优先级, 其优先级从高到低可以为: 后一子帧中的上行信道, 前一子帧中的上行信道。
制定方式 6. 若时域上发生时域符号前后重叠的上行信道为多个 PUSCH, 则按照 PUSCH携带的是否重传数据来制定优先级, 其优先级从高 到低可以为: 携带新传数据的 PUSCH、 携带重传数据的 PUSCH。
更进一步的,上述预定义的规则 3中的功率削减方法可以为等比例削减, 也可以为规则 2中基于优先级的功率削减。
下文中将结合附图对本发明的实施例进行详细说明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互任意组合。
实施例 Γ
UE配置了两个上行载波 CC1与 CC2,其中 CC1为 PCell, CC2为 SCell。
CC1与 CC2属于不同的 TA组,其中 CC1属于 TA组 1 , CC2属于 TA组 2。
实施例 Γ-1
如图 14所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 由于 CC1 与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号(标示为 )与 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 同时对 CC1与 CC2上的 PUSCH的发射功率 作等比例削减后发送出去; 或者
UE按照预定义的规则 1 ,对所有载波上的上行信道的发射功率作等比例 削减。
则 UE对 CC1与 CC2上的 PUSCH的发射功率作等比例削减,直至 CC1 与 CC2上的 PUSCH发射功率之和不超过 UE配置的最大发射功率,然后 UE 同时发送 CC1与 CC2上的 PUSCH。
实施例 Γ-2
如图 3所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 由于 CC1 与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号(标示为 )与
CC2上的子帧 n中的 PUSCH (标示为^ 符号发生了部分重叠。 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照预定义的规则 2, 按照一定的优先级进 行功率削减, 保证优先级较高的一个或多个上行信道的发射功率, 削减优先 级较低的一个或多个上行信道的发射功率; 或者
UE按照预定义的规则 2, 按照一定的优先级进行功率削减, 保证优先级 较高的一个或多个上行信道的发射功率, 削减优先级较低的一个或多个上行 信道的发射功率。
若此时优先级的制定方式为上述制定方式 2, 则由于 CC1是 PCell, CC2 是 SCell, 因此 CC1上的 PUSCH的优先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH的发射功率, 后削减 CC1上的 PUSCH 的发射功率, 直至 UE上行信道的总发射功率不高于 UE配置的最大发射功 率。
实施例 Γ-3 如图 14所示, 在子帧 n中, CCl与 CC2都需要传输 PUSCH。 其中, CC1上的 PUSCH携带有 UCI, CC2上的 PUSCH没有携带 UCI。 由于 CC1 与 CC2的 TA不同, 因此 CC n中的 PUSCH符号(标示」
Figure imgf000027_0001
CC2上的子帧 n中的 PUSCH
Figure imgf000027_0002
)符号发生了部分重叠, 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照预定义的规则 2, 按照一定的优先级进 行功率削减, 保证优先级较高的一个或多个上行信道的发射功率, 削减优先 级较低的一个或多个上行信道的发射功率; 或者
UE按照预定义的规则 2, 按照一定的优先级进行功率削减, 保证优先级 较高的一个或多个上行信道的发射功率, 削减优先级较低的一个或多个上行 信道的发射功率。
PUSCH携带有 UCI, CC2上的 PUSCH没有携带 UCI, 因此 CC1的 PUSCH 优先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH的发射功率, 后削减 CC1上的 PUSCH 的发射功率, 直至 UE上行信道的总发射功率不高于 UE配置的最大发射功 率。
实施例 Γ-4
如图 15所示,在子帧 n中, CC1需要传输 PUSCH,在子帧 n+1中, CC2 也需要传输 PUSCH。 由于 CCl与 CC2的 TA不同, 因此 CC1上的子帧 n中 的 PUSCH符号 (标示为 )与 CC2上的子帧 n+1中的 PUSCH (标示为 ^ ) 符号发生了部分重叠。
若此时子帧 n中的 CC1上的 PUSCH的发射功率与子帧 n+1 中的 CC2 上的 PUSCH的发射功率之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照预定义的规则 2, 按照一定的优先级进 行功率削减, 保证优先级较高的一个或多个上行信道的发射功率, 削减优先 级较低的一个或多个上行信道的发射功率; 或者
UE按照预定义的规则 2, 按照一定的优先级进行功率削减, 保证优先级 较高的一个或多个上行信道的发射功率, 削减优先级较低的一个或多个上行 信道的发射功率。 优先级高于 CC2中的 PUSCH。
则 UE先削减 CC2上的 PUSCH的发射功率, 后削减 CC1上的 PUSCH 的发射功率, 直至 UE上行信道的总发射功率不高于 UE配置的最大发射功 率。
实施例 Γ-5
如图 15所示,在子帧 n中, CC1需要传输 PUSCH,在子帧 n+1中, CC2 也需要传输 PUSCH。 由 CCl与 CC2的 TA不同, 因此 CC1上的子帧 n中 的 PUSCH符号(标示」
Figure imgf000028_0001
CC2上的子帧 n+1中的 PUSCH (标示 ) 符号发生了部分重叠,
若此时子帧 n中的 CC1上的 PUSCH的发射功率与子帧 n+1 中的 CC2 上的 PUSCH的发射功率之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照预定义的规则 2, 按照一定的优先级进 行功率削减, 保证优先级较高的一个或多个上行信道的发射功率, 削减优先 级较低的一个或多个上行信道的发射功率; 或者
UE按照预定义的规则 2, 按照一定的优先级进行功率削减, 保证优先级 较高的一个或多个上行信道的发射功率, 削减优先级较低的一个或多个上行 信道的发射功率。 优先级高于 CC1中的 PUSCH。
则 UE先削减 CC1上的 PUSCH的发射功率, 后削减 CC2上的 PUSCH 的发射功率, 直至 UE上行信道的总发射功率不高于 UE配置的最大发射功 率。 实施例 Γ-6
如图 16所示, 在子帧 η中, CC1与 CC2都需要传输 PUSCH。 由 CC1 与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号(标示为
Figure imgf000029_0001
)与
CC2上的子帧 n中的 PUSCH (标示为 的符号标示为 之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1与 CC2上的 PUSCH符号发生重叠的 部分进行等比例功率削减; 或者
UE按照预定义的规则 3 ,对不同信道上发生重叠的符号上的功率进行等 比例削减, 不削减没有发生重叠的符号功率。 则 UE仅对 CC1与 CC2上的 PUSCH中发生重叠的符号(标示为靈 )的 发射功率作等比例削减,直至 CC1与 CC2上的 PUSCH中发生重叠的符号的 发射功率之和不超过 UE配置的最大发射功率,然后 UE同时发送 CC1与 CC2 上的 PUSCH。
实施例 Γ-7
如图 16所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 由 CC1 与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号(标示为
Figure imgf000029_0002
CC2上的子帧 n中的 PUSCH (标示为 符号发生了部分重叠, 重叠部 的符号标示为 之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1与 CC2上的 PUSCH符号发生重叠的 部分按优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对不同信道上发生重叠的符号上的功率按优先 级进行削减, 不削减没有发生重叠的符号功率。
若此时优先级的制定方式为上述制定方式 2, 则由于 CC1是 PCell, CC2 是 SCell, 因此 CC1上的 PUSCH的优先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH中发生重叠的符号的发射功率, 后削减 CC1 上的 PUSCH 中发生重叠的符号的发射功率, 直至 CC1 与 CC2上的 PUSCH中发生重叠的符号的发射功率之和不超过 UE配置的最大发射功率, 然后 UE同时发送 CC1与 CC2上的 PUSCH。
实施例 Γ-8
如图 16所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 其中 CC1 中的 PUSCH携带 UCI, CC2中的 PUSCH没有携带 UCI, 由于 CC1与 CC2 的 TA不同, 因此 CC1上的子帧 n中的 PUSCH符号(标示」 國 )与 CC2上
Figure imgf000030_0001
之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1与 CC2上的 PUSCH符号发生重叠的 部分按优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对不同信道上发生重叠的符号上的功率按优先 级进行削减, 不削减没有发生重叠的符号功率。
若此时优先级的制定方式为上述制定方式 3 , 则 CC1上的 PUSCH的优 先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH中发生重叠的符号的发射功率, 后削减 CC1 上的 PUSCH 中发生重叠的符号的发射功率, 直至 CC1 与 CC2上的 PUSCH中发生重叠的符号的发射功率之和不超过 UE配置的最大发射功率, 然后 UE同时发送 CC1与 CC2上的 PUSCH。
实施例 Γ-9
如图 17所示,在子帧 n中, CC1需要传输 PUSCH,在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CCl与 CC2的 TA不同, 因此 CCl上的子帧 n中的
PUSCH符号 (标示为 )与 CC2上的子帧 n+1 中的 PUSCH (标示 符号发生了部分重叠, 重叠部分的符号标示为 之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1与 CC2上的 PUSCH符号发生重叠的 部分按优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对不同信道上发生重叠的符号上的功率按优先 级进行削减, 不削减没有发生重叠的符号功率。
若此时优先级的制定方式为上述制定方式 4, 则 CC1上的 PUSCH的优 先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH中发生重叠的符号的发射功率, 后削减 CC1 上的 PUSCH 中发生重叠的符号的发射功率, 直至 CC1 与 CC2上的 PUSCH中发生重叠的符号的发射功率之和不超过 UE配置的最大发射功率, 然后 UE同时发送 CC1与 CC2上的 PUSCH。
实施例 Γ-10
如图 17所示,在子帧 n中, CC1需要传输 PUSCH,在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CCl与 CC2的 TA不同, 因此 CC1上
PUSCH符号 (标示为 )与 CC2上的子帧 n+1 中的 PUSCH
Figure imgf000031_0001
符号发生了部分重叠, 重叠部分的符号标示为 之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1与 CC2上的 PUSCH符号发生重叠的 部分按优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对不同信道上发生重叠的符号上的功率按优先 级进行削减, 不削减没有发生重叠的符号功率。 若此时优先级的制定方式为上述制定方式 5, 则 CC2上的 PUSCH的优 先级高于 CC1上的 PUSCH。
则 UE先削减 CC1上的 PUSCH中发生重叠的符号的发射功率, 后削减 CC2上的 PUSCH 中发生重叠的符号的发射功率, 直至 CC1 与 CC2上的 PUSCH中发生重叠的符号的发射功率之和不超过 UE配置的最大发射功率, 然后 UE同时发送 CC1与 CC2上的 PUSCH。
实施例 Γ-11
如图 14所示, 在子帧 n中, CC1与 CC2都需要传输 PUSCH。 其中, CC1上的 PUSCH携带新传数据, CC2上的 与 CC2的 TA不同, 因此 CC n
Figure imgf000032_0001
CC2上的子帧 n中的 PUSCH
Figure imgf000032_0002
)符号发生了部分重叠, 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照预定义的规则 2, 按照一定的优先级进 行功率削减, 保证优先级较高的一个或多个上行信道的发射功率, 削减优先 级较低的一个或多个上行信道的发射功率; 或者
UE按照预定义的规则 2, 按照一定的优先级进行功率削减, 保证优先级 较高的一个或多个上行信道的发射功率, 削减优先级较低的一个或多个上行 信道的发射功率。
PUSCH携带新传数据而 CC2 中的 PUSCH携带重传数据, 因此 CC1 中的 PUSCH优先级高于 CC2中的 PUSCH。
则 UE先削减 CC2上的 PUSCH的发射功率, 后削减 CC1上的 PUSCH 的发射功率, 直至 UE上行信道的总发射功率不高于 UE配置的最大发射功 率。
实施例 2'
UE配置了两个上行载波 CC1与 CC2,其中 CC1为 PCell, CC2为 SCell。 CCl与 CC2属于不同的 TA组,其中 CCl属于 TA组 1 , CC2属于 TA组 2。 实施例 2'-1
如图 18所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CCl与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号 (标 示为 ^ )与 CC2上的子帧 n中的 PUSCH(标示为 ^ )符号发生了部分重叠 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,同时对 CC1上的 PUCCH与 CC2上的 PUSCH 的发射功率作等比例削减后发送出去; 或者
UE按照预定义的规则 1 ,对所有载波上的上行信道的发射功率作等比例 削减。
则 UE对 CC1上的 PUCCH与 CC2上的 PUSCH的发射功率作等比例削 减, 直至 CC1上的 PUCCH与 CC2上的 PUSCH发射功率之和不超过 UE配 实施例 2 '-2
如图 18所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CCl与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号 (标 示为 )与 CC2上的子帧 n中的 PUSCH(标示为 )符号发生了部分重叠。 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照优先级对 CC1上的 PUCCH的发射功率 与 CC2上的 PUSCH的发射功率进行功率削减; 或者
UE按照预定义的规则 2,对所有载波上的上行信道的发射功率按照优先 级作削减。
若此时优先级的制定方式为上述制定方式 1 , 则 CC1上的 PUCCH的优 先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH发射功率, 后削减 CC1上的 PUCCH发 射功率,直至 CC1上的 PUCCH的发射功率与 CC2上的 PUSCH的发射功率 之和不超过 UE配置的最大发射功率为止。 然后 UE发送 CC1上的 PUCCH 与 CC2上的 PUSCH。
实施例 2 '-3
如图 18所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号 (标 示为 ^ )与 CC2上的子帧 n中的 PUSCH(标示为 ^ )符号发生了部分重叠 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照优先级对 CC1上的 PUCCH的发射功率 与 CC2上的 PUSCH的发射功率进行功率削减; 或者
UE按照预定义的规则 2,对所有载波上的上行信道的发射功率按照优先 级作削减。
若此时优先级的制定方式为上述制定方式 2, 则 CC1上的 PUCCH的优 先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH发射功率, 后削减 CC1上的 PUCCH发 射功率,直至 CC1上的 PUCCH的发射功率与 CC2上的 PUSCH的发射功率 之和不超过 UE配置的最大发射功率为止。 然后 UE发送 CC1上的 PUCCH 与 CC2上的 PUSCH。
实施例 2 '-4
如图 19所示,在子帧 n中, CC1需要传输 PUCCH,在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的
Figure imgf000034_0001
号发生了部分重叠。
若在子帧 n中, CC1上的 PUCCH的发射功率与在子帧 n+1中, CC2上 的 PUSCH的发射功率之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照优先级对 CC1上的 PUCCH的发射功率 与 CC2上的 PUSCH的发射功率进行功率削减; 或者
UE按照预定义的规则 2,对所有载波上的上行信道的发射功率按照优先 级作削减。
若此时优先级的制定方式为上述制定方式 4, 则 CC1上的 PUCCH的优 先级高于 CC2上的 PUSCH。
则 UE先削减子帧 n+1中的 CC2上的 PUSCH发射功率, 后削减子帧 n 中的 CC1上的 PUCCH发射功率,直至子帧 n中的 CC1上的 PUCCH的发射 功率与子帧 n+l中的 CC2上的 PUSCH的发射功率之和不超过 UE配置的最 大发射功率为止。 然后 UE发送 CC1上的 PUCCH与 CC2上的 PUSCH。
实施例 2'-5
如图 19所示,在子帧 n中, CC1需要传输 PUCCH,在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的 園
PUCCH符号 (标示为國)与 CC2上的子帧 n中的 PUSCH (标示为圍)符 号发生了部分重叠。
若在子帧 n中, CC1上的 PUCCH的发射功率与在子帧 n+1中, CC2上 的 PUSCH的发射功率之和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE, 按照优先级对 CC1上的 PUCCH的发射功率 与 CC2上的 PUSCH的发射功率进行功率削减; 或者
UE按照预定义的规则 2,对所有载波上的上行信道的发射功率按照优先 级作削减。
若此时优先级的制定方式为上述制定方式 5 , 则 CC2上的 PUSCH的优 先级高于 CC1上的 PUCCH。
则 UE先削减子帧 n+1中的 CC1上的 PUCCH发射功率, 后削减子帧 n 中的 CC2上的 PUSCH发射功率, 直至子帧 n中的 CC1上的 PUCCH的发射 功率与子帧 n+1中的 CC2上的 PUSCH的发射功率之和不超过 UE配置的最 大发射功率为止。 然后 UE发送 CC1上的 PUCCH与 CC2上的 PUSCH。
实施例 2 '-6 如图 20所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号 (标 示为^ )与 CC2上的子帧 n中的 PUSCH(标示为 )符号发生了部分重叠: 重叠的符号标示为 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1上的 PUCCH的发射功率与 CC2上的 PUSCH发生重叠的符号的发射功率进行等比例功率削减; 或者
UE按照预定义的规则 3 ,对所有载波上的上行信道重叠的符号的发射功 率进行等比例功率削减。
则 UE对 CC1上的 PUCCH与 CC2上的 PUSCH中发生重叠的符号的发 射功率作等比例削减, 直至 CC1上的 PUCCH与 CC2上的 PUSCH重叠的符 号的发射功率之和不超过 UE配置的最大发射功率, 然后 UE同时发送 CC1 上的 PUCCH与 CC2上的 PUSCH。
实施例 2 '-7
如图 20所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号 (标 示为 )与 CC2上的子帧 n中的 PUSCH(标示为 )符号发生了部分重叠, 重叠的符号标示为 。 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1上的 PUCCH的发射功率与 CC2上的 PUSCH发生重叠的符号的发射功率按照优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对所有载波上的上行信道重叠的符号的发射功 率按优先级进行功率削减。
若此时优先级的制定方式为上述制定方式 1 , 则 CC1上的 PUCCH的优 先级高于 CC2上的 PUSCH。 则 UE先削减 CC2上的 PUSCH中发生重叠的符号的发射功率, 后削减 CC1上的 PUCCH中发生重叠的符号的发射功率, 直至 CC1上的 PUCCH中 发生重叠的符号的发射功率与 CC2上的 PUSCH中发生重叠的符号的发射功 率之和不超过 UE配置的最大发射功率为止。然后 UE发送 CC1上的 PUCCH 与 CC2上的 PUSCH。
实施例 2 '-8
如图 20所示,在子帧 n中, CC1需要传输 PUCCH, CC2需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上的子帧 n中的 PUCCH符号 (标 示为 ^ )与 CC2上的子帧 n中的 PUSCH(标示为 ^ )符号发生了部分重叠: 重叠的符号标示为 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1上的 PUCCH的发射功率与 CC2上的 PUSCH发生重叠的符号的发射功率按照优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对所有载波上的上行信道重叠的符号的发射功 率按优先级进行功率削减。
若此时优先级的制定方式为上述制定方式 2, 则 CC1上的 PUCCH的优 先级高于 CC2上的 PUSCH。
则 UE先削减 CC2上的 PUSCH中发生重叠的符号的发射功率, 后削减 CC1上的 PUCCH中发生重叠的符号的发射功率, 直至 CC1上的 PUCCH中 发生重叠的符号的发射功率与 CC2上的 PUSCH中发生重叠的符号的发射功 率之和不超过 UE配置的最大发射功率为止。然后 UE发送 CC1上的 PUCCH 与 CC2上的 PUSCH。
实施例 2 '-9
如图 21所示,在子帧 n中, CC1需要传输 PUCCH,在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CC1与 CC2的 TA不同, 因此 CC1上
PUCCH符号 (标示为 )与 CC2上的子帧 n+1 中的 PUSCH
Figure imgf000037_0001
符号发生了部分重叠, 重叠的符号标示为 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1上的 PUCCH的发射功率与 CC2上的 PUSCH发生重叠的符号的发射功率按照优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对所有载波上的上行信道重叠的符号的发射功 率按优先级进行功率削减。
若此时优先级的制定方式为上述制定方式 4, 则子帧 n 中的 CC1 上的 PUCCH的优先级高于子帧 n+1中的 CC2上的 PUSCH。
则 UE先削减子帧 n+1中的 CC2上的 PUSCH中发生重叠的符号的发射 功率, 后削减子帧 n中的 CC1上的 PUCCH中发生重叠的符号的发射功率, 直至子帧 n中的 CC1上的 PUCCH中发生重叠的符号的发射功率与子帧 n+1 中的 CC2上的 PUSCH中发生重叠的符号的发射功率之和不超过 UE配置的 最大发射功率为止。 然后 UE发送 CC1上的 PUCCH与 CC2上的 PUSCH。
实施例 2'-10
如图 21所示,在子帧 n中, CC1需要传输 PUCCH,在子帧 n+1中, CC2 需要传输 PUSCH。 由于 CCl与 CC2的 TA不同, 因此 CC1上的子帧 n中的
PUCCH符号 (标示为圖)与 CC2上的子帧 n+1 中的 PUSCH (标示为關) 符号发生了部分重叠, 重叠的符号标示为 和超过 UE配置的最大发射功率。
则 eNB通过信令通知 UE,对 CC1上的 PUCCH的发射功率与 CC2上的 PUSCH发生重叠的符号的发射功率按照优先级进行功率削减; 或者
UE按照预定义的规则 3 ,对所有载波上的上行信道重叠的符号的发射功 率按优先级进行功率削减。
若此时优先级的制定方式为上述制定方式 5, 则子帧 n+1中的 CC2上的 PUSCH的优先级高于子帧 n中的 CC1上的 PUCCH。 则 UE先削减子帧 n中的 CC1上的 PUCCH中发生重叠的符号的发射功 率, 后削减子帧 n+1中的 CC1上的 PUSCH中发生重叠的符号的发射功率, 直至子帧 n中的 CC1上的 PUCCH中发生重叠的符号的发射功率与子帧 n+1 中的 CC2上的 PUSCH中发生重叠的符号的发射功率之和不超过 UE配置的 最大发射功率为止。 然后 UE发送 CC1上的 PUCCH与 CC2上的 PUSCH。
此外, 本发明实施例中还提供了一种载波聚合系统中上行信号功率削减 装置,如图 22所示,该装置主要包括基站中的发射功率判断单元和功率削减 指示单元, 以及 UE中的功率削减执行单元, 其中:
所述发射功率判断单元用于, 用户设备配置了多个时间提前量时, 判断 不同载波承载的上行信道之间时域符号不对齐时, 不同载波上是否发生时域 符号前后重叠, 如果是, 则再判断所述 UE各上行信道的发射功率之和是否 超过所述 UE配置的最大发射功率;
所述功率削减指示单元用于, 若所述发射功率判断单元判定所述 UE各 上行信道的发射功率之和超过所述 UE配置的最大发射功率,则指示所述 UE 对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减;
所述功率削减执行单元用于, 根据所述基站的指示, 对不同载波上发生 时域符号前后重叠的上行信道的发射功率进行削减。
进一步的, 所述功率削减指示单元用于, 指示所述 UE功率削减的预定 义规则;
所述功率削减执行单元用于, 根据所述功率削减指示单元指示的预定义 规则,对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减; 其中, 所述预定义规则, 包括: 等比例降低各上行载波的上行信道的发 射功率,直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或者, 按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削 减, 直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或 者, 仅对不同信道上发生重叠的符号的发射功率进行削减。
进一步的, 所述功率削减指示单元用于, 指示所述 UE功率削减方式、 和 /或功率削减对象; 所述功率削减执行单元用于, 按照所述功率削减指示单元指示的所述功 率削减方式对所述功率削减对象的发射功率进行削减;
其中, 所述功率削减方式, 包括: 对各上行信道的发射功率进行等比例 削减; 按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削 减; 所述功率削减对象, 包括: 全部上行信道; 指定上行信道。
进一步的, 所述发射功率判断单元用于, 在接收到 UE处于功率受限状 态的通知时, 判定所述 UE各上行信道的发射功率之和超过 UE配置的最大 发射功率。
进一步的, 所述功率削减指示单元用于, 通过物理层信令或者高层信令 指示所述 UE对不同载波上发生时域符号前后重叠的上行信道的发射功率进 行削减。
此外, 本发明实施例中还提供了一种载波聚合系统中上行信号功率削减 装置, 如图 23所示, 该装置主要包括 UE中的发射功率判断模块和发射功率 削减模块, 其中:
所述发射功率判断模块用于, 所述 UE配置了多个时间提前量, 当不同 载波承载的上行信道之间时域符号不对齐、 且不同载波上发生时域符号前后 重叠时, 判断所述 UE各上行信道的发射功率之和是否超过所述 UE配置的 最大发射功率;
所述发射功率削减模块用于, 若所述发射功率判断模块判定所述 UE各 上行信道的发射功率之和超过所述 UE配置的最大发射功率, 则按照预定义 规则对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减。
进一步的, 所述发射功率削减模块用于, 按照如下预定义规则对不同载 波上发生时域符号前后重叠的上行信道的发射功率进行削减:
等比例降低各上行载波的上行信道的发射功率, 直至所述 UE的发射功 率不超过所述 UE配置的最大发射功率为止; 或者,
按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削减 , 直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或者, 仅对不同信道上发生重叠的符号的发射功率进行削减。 进一步的, 所述发射功率削减模块仅对不同信道上发生重叠的符号的发 射功率进行削减时, 等比例降低发生重叠的符号的发射功率、 或者, 按照发 生重叠的符号所对应的上行信道的优先级由低到高的顺序依序对不同信道上 发生重叠的符号进行功率削减。
进一步的, 所述发射功率削减模块用于, 按照以下方式之一判断各上行 信道的发射功率之和是否超过 UE配置的最大发射功率:
判断当前子帧内各上行载波承载的上行信道发射功率之和是否超过所述 UE配置的最大发射功率; 或者,
判断当前子帧内各上行载波承载的上行信道发射功率与下一子帧准备发 射的各上行载波承载的上行信道发射功率之和是否超过所述 UE配置的最大 发射功率。
本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上所述仅为本发明的优选实施例而已, 并非用于限定本发明的保护范 围。 根据本发明的发明内容, 还可有其他多种实施例, 在不背离本发明精神 改变和变形, 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。
工业实用性
釆用本发明实施例后, 解决了现有技术中不支持配置了 MTA的载波聚 合系统中不同上行分量载波中传输的信号符号在时域上前后重叠时的信号传 输的问题。

Claims

权 利 要 求 书
1、 一种上行信号的发送方法, 应用于载波聚合系统中, 包括: 在配置了两个以上的时间提前量后, 用户设备根据基站发来的信令指示 或者预定义的规则, 对于在不同载波上将要发生时域上前后符号重叠的上行 信道和 /或上行信号进行速率匹配后再发送、 进行丟弃后再发送或同时发送。
2、 如权利要求 1所述的方法, 其中,
所述信令指示为发送指示, 所述发送指示用于指示所述用户设备对于不 同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号进行同时 传输, 或者, 用于指示所述用户设备按照一定规则对不同载波上将要发生时 域上前后符号重叠的上行信道和 /或上行信号进行速率匹配后再发送、进行丟 弃后再发送或同时发送。
3、 如权利要求 1或 2所述的方法, 其中,
对不同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号 进行速率匹配, 包括:
对将要发生符号在时域上前后重叠的上行信道和 /或上行信号, 留空上行 信道的某一个特定符号, 在该特定符号内不进行传输。
4、 如权利要求 1或 2所述的方法, 其中,
对不同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号 进行丟弃, 包括:
丟弃特定的符号在时域上前后重叠的上行信道和 /或上行信号,在被丟弃 符号上不对相应的上行信道和 /或上行信号进行传输。
5、 如权利要求 1所述的方法, 其中,
所述预定义的规则包括触发规则与发送规则; 在满足所述触发规则的情 况下, 按照所述发送规则对所述上行信道和 /或上行信号进行处理;
所述触发规则至少为下列规则之一:
所述基站为所述用户设备配置的不同上行载波时间提前量的值之差值超 过第一预设门限值; 或者, 所述用户设备发现配置的不同上行载波之间的实际发射时间之差超过第 二预设门限值。
6、 如权利要求 5所述的方法, 其中, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为物理上行共享 信道(PUSCH ) 时, 所述用户设备选用下述任一方式进行处理:
方式一: 所述用户设备同时发送不同载波上的 PUSCH;
方式二: 所述用户设备按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述用户设备同时发送所述优先级相同的 PUSCH;
方式三: 所述用户设备按照一定的优先级, 留空优先级较低的 PUSCH 中的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述用 户设备同时发送所述优先级相同的 PUSCH。
7、 如权利要求 6所述的方法, 其中,
当按照是否携带上行控制信息确定优先级时, 携带上行控制信息的
PUSCH的优先级高于没有携带上行控制信息的 PUSCH的优先级;
当按照携带 PUSCH的载波确定优先级时,主服务小区上的 PUSCH的优 先级高于辅服务小区上的 PUSCH的优先级;
当按照子帧索引确定优先级时, 前一子帧的 PUSCH的优先级高于后一 子帧的 PUSCH的优先级;
当按照子帧索引确定优先级时, 后一子帧的 PUSCH的优先级高于前一 子帧的 PUSCH的优先级;
当按照是否新传输数据确定的优先级时, 携带新传输数据的 PUSCH的 优先级高于携带重传数据的 PUSCH的优先级。
8、 如权利要求 5所述的方法, 其中, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH与物 理上行控制信道(PUCCH ) 时, 所述用户设备选用下述任一方式进行处理: 方式一: 所述用户设备同时发送不同载波上的 PUSCH和 PUCCH;
方式二: 所述用户设备丟弃 PUSCH, 只发送 PUCCH;
方式三: 所述用户设备进行速率匹配, 留空 PUSCH中的与 PUCCH符 号发生重叠的符号, 然后发送不同载波上的 PUSCH和 PUCCH。
9、 如权利要求 8所述的方法, 其中,
当两个以上不同载波上的 PUSCH与 PUCCH将要发生时域上前后符号 重叠时, 若按照所述方式三对与所述 PUCCH 重叠的所有 PUSCH进行处理 后, 所述两个以上 PUSCH之间还存在将要在时域上前后符号重叠的情况, 则选用下述任一方式对所述两个以上 PUSCH进行处理:
方式 1 : 所述用户设备同时发送不同载波上的 PUSCH;
方式 2: 所述用户设备按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述用户设备同时发送所述优先级相同的 PUSCH;
方式 3: 所述用户设备按照一定的优先级, 留空优先级较低的 PUSCH中 的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述用 户设备同时发送所述优先级相同的 PUSCH。
10、 如权利要求 5所述的方法, 其中, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH 与 SRS时, 所述用户设备可选用下述任一方式进行处理:
方式一: 所述用户设备同时发送不同载波上的 PUSCH与 SRS;
方式二: 所述用户设备丟弃 SRS, 只发送 PUSCH;
方式三: 所述用户设备丟弃 PUSCH, 只发送 SRS;
方式四: 所述用户设备留空 PUSCH中与 SRS发生重叠的符号, 然后发 送不同载波上的 PUSCH和 SRS。
11、 如权利要求 10所述的方法, 其中,
当两个以上不同载波上的 PUSCH与两个以上不同载波上的 SRS将要发 生时域上前后符号重叠时, 若按照所述方式四对重叠的所有 SRS 与所述
PUSCH进行处理后, 所述两个以上 PUSCH之间还存在将要在时域上前后符 号重叠的情况, 则选用下述任一方式对所述两个以上 PUSCH进行处理:
方式 1 : 所述用户设备同时发送不同载波上的 PUSCH;
方式 2: 所述用户设备按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述用户设备同时发送所述优先级相同的 PUSCH;
方式 3: 所述用户设备按照一定的优先级, 留空优先级较低的 PUSCH中 的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述用 户设备同时发送所述优先级相同的 PUSCH。
12、 如权利要求 5所述的方法, 其中, 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUCCH 与 SRS时, 所述用户设备选用下述任一方式进行处理:
方式一: 所述用户设备同时发送不同载波上的 PUCCH与 SRS;
方式二: 所述用户设备丟弃 SRS, 只发送 PUCCH。
13、 如权利要求 5所述的方法, 其中, 所述发送规则包括:
当多个不同载波上的 SRS与 PUCCH将要发生时域上的前后符号重叠时, 所述用户设备选用下述任一方式进行处理:
方式一: 所述用户设备同时发送多个不同载波上的 SRS与 PUCCH;
方式二: 所述用户设备丟弃所有 SRS, 只发送 PUCCH;
方式三: 所述用户设备丟弃所有将要发生前后符号重叠的周期 SRS, 同 时发送所有将要发生前后符号重叠的非周期 SRS与 PUCCH。
14、 如权利要求 1所述的方法, 其中,
所述预定义的规则包括触发规则与发送规则; 在满足所述触发规则的情 况下, 按照所述发送规则对所述上行信道和 /或上行信号进行处理;
所述触发规则至少为下列规则之一: 所述基站为所述用户设备配置的不同上行载波时间提前量的值之差值超 过第一预设门限值; 或者,
所述用户设备发现配置的不同上行载波之间的实际发射时间之差超过第 二预设门限值;
或者, 用户设备 (UE)配置了多个时间提前量, 当不同载波承载的上行信 道之间时域符号不对齐、 且不同载波上发生时域符号前后重叠时, 若判定所 述 UE各上行信道的发射功率之和超过所述 UE配置的最大发射功率。
15、 一种用户设备, 应用于载波聚合系统中, 包括:
接收模块, 其设置为: 接收基站配置的两个以上的时间提前量; 发送模块, 其设置为: 根据基站发来的信令指示或者预定义的规则, 对 于在不同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号进 行速率匹配后再发送、 进行丟弃后再发送或同时发送。
16、 如权利要求 15所述的用户设备, 其中,
所述信令指示为发送指示, 所述发送指示用于指示所述用户设备对于不 同载波上将要发生时域上前后符号重叠的上行信道和 /或上行信号进行同时 传输; 或者, 指示所述用户设备按照一定规则对不同载波上将要发生时域上 前后符号重叠的上行信道和 /或上行信号进行速率匹配后再发送、进行丟弃后 再发送或同时发送。
17、 如权利要求 15或 16所述的用户设备, 其中,
所述发送模块设置为: 对不同载波上将要发生时域上前后符号重叠的上 行信道和 /或上行信号进行速率匹配, 包括:
所述发送模块对将要发生符号在时域上前后重叠的上行信道和 /或上行 信号, 留空上行信道的某一个特定符号, 在该符号内不进行传输。
18、 如权利要求 15或 16所述的用户设备, 其中,
所述发送模块设置为: 对不同载波上将要发生时域上前后符号重叠的上 行信道和 /或上行信号进行丟弃, 包括:
所述发送模块丟弃特定的符号在时域上前后重叠的上行信道和 /或上行 信号, 在被丟弃符号上不对相应的上行信道和 /或上行信号进行传输。
19、 如权利要求 15所述的用户设备, 其中,
所述预定义的规则包括触发规则与发送规则; 在满足所述触发规则的情 况下, 按照所述发送规则对所述上行信道和 /或上行信号进行处理;
所述触发规则至少为下列规则之一:
所述基站为所述用户设备配置的不同上行载波时间提前量的值之差值超 过第一预设门限值; 或者,
所述用户设备发现配置的不同上行载波之间的实际发射时间之差超过第 二预设门限值。
20、 如权利要求 19所述的用户设备, 其中, 所述发送模块设置为: 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为物理上行共享 信道(PUSCH ) 时, 选用下述任一方式进行处理:
方式一: 所述发送模块同时发送不同载波上的 PUSCH;
方式二: 所述发送模块按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述发送模块同时发送所述优先级相同的 PUSCH;
方式三: 所述发送模块按照一定的优先级, 留空优先级较低的 PUSCH 中的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述发 送模块同时发送所述优先级相同的 PUSCH。
21、 如权利要求 20所述的用户设备, 其中, 所述发送模块还设置为: 当按照是否携带上行控制信息确定优先级时, 携带上行控制信 ,包、的 PUSCH的优先级高于没有携带上行控制信息的 PUSCH的优先级;
当按照携带 PUSCH的载波确定优先级时,主服务小区上的 PUSCH的优 先级高于辅服务小区上的 PUSCH的优先级;
当按照子帧索引确定优先级时, 前一子帧的 PUSCH的优先级高于后一 子帧的 PUSCH的优先级;
当按照子帧索引确定优先级时, 后一子帧的 PUSCH的优先级高于前一 子帧的 PUSCH的优先级;
当按照是否新传输数据确定的优先级时, 携带新传输数据的 PUSCH的 优先级高于携带重传数据的 PUSCH的优先级。
22、 如权利要求 19所述的用户设备, 其中, 所述发送模块设置为: 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH与物 理上行控制信道(PUCCH ) 时, 选用下述任一方式进行处理:
方式一: 所述发送模块同时发送不同载波上的 PUSCH和 PUCCH;
方式二: 所述发送模块丟弃 PUSCH, 只发送 PUCCH;
方式三: 所述发送模块进行速率匹配, 留空 PUSCH中的与 PUCCH符 号发生重叠的符号, 然后发送不同载波上的 PUSCH和 PUCCH。
23、 如权利要求 22所述的用户设备, 其中, 所述发送模块设置为: 当两个以上不同载波上的 PUSCH与 PUCCH将要发生时域上前后符号 重叠时, 若按照所述方式三对与所述 PUCCH 重叠的所有 PUSCH进行处理 后, 所述两个以上 PUSCH之间还存在将要在时域上前后符号重叠的情况, 则选用下述任一方式对所述两个以上 PUSCH进行处理:
方式 1 : 所述发送模块同时发送不同载波上的 PUSCH;
方式 2: 所述发送模块按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述发送模块同时发送所述优先级相同的 PUSCH;
方式 3: 所述发送模块按照一定的优先级, 留空优先级较低的 PUSCH中 的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述发 送模块同时发送所述优先级相同的 PUSCH。
24、 如权利要求 19所述的用户设备, 其中, 所述发送模块设置为: 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUSCH与测 量参考信号 (SRS ) 时, 所述发送模块可选用下述任一方式进行处理:
方式一: 所述发送模块同时发送不同载波上的 PUSCH与 SRS;
方式二: 所述发送模块丟弃 SRS, 只发送 PUSCH;
方式三: 发送模块丟弃 PUSCH, 只发送 SRS;
方式四: 所述发送模块留空 PUSCH中与 SRS发生重叠的符号, 然后发 送不同载波上的 PUSCH和 SRS。
25、 如权利要求 23所述的用户设备, 其中, 所述发送模块设置为: 当两个以上不同载波上的 PUSCH与两个以上不同载波上的 SRS将要发 生时域上前后符号重叠时, 若按照所述方式四对重叠的所有 SRS 与所述 PUSCH进行处理后, 所述两个以上 PUSCH之间还存在将要在时域上前后符 号重叠的情况, 则所述发送模块选用下述任一方式对所述两个以上 PUSCH 进行处理:
方式 1 : 所述发送模块同时发送不同载波上的 PUSCH;
方式 2: 所述发送模块按照一定的优先级, 丟弃优先级较低的 PUSCH, 发送优先级较高的 PUSCH; 对于优先级相同的 PUSCH将要发生时域上前后 符号重叠时, 所述发送模块同时发送所述优先级相同的 PUSCH;
方式 3: 所述发送模块按照一定的优先级, 留空优先级较低的 PUSCH中 的与优先级较高的 PUSCH符号发生重叠的符号, 然后发送不同载波上的 PUSCH; 当优先级相同的 PUSCH将要发生时域上前后符号重叠时, 所述发 送模块同时发送所述优先级相同的 PUSCH。
26、 如权利要求 19所述的用户设备, 其中, 所述发送模块设置为: 所述发送规则包括:
当不同载波上将要发生时域上前后符号重叠的上行信道为 PUCCH 与
SRS时, 所述发送模块选用下述任一方式进行处理:
方式一: 所述发送模块同时发送不同载波上的 PUCCH与 SRS; 方式二: 所述发送模块丟弃 SRS, 只发送 PUCCH。
27、 如权利要求 19所述的用户设备, 其中, 所述发送模块设置为: 所述发送规则包括:
当多个不同载波上的 SRS与 PUCCH将要发生时域上的前后符号重叠时, 所述发送模块选用下述任一方式进行处理:
方式一: 所述发送模块同时发送多个不同载波上的 SRS与 PUCCH;
方式二: 所述发送模块丟弃所有 SRS, 只发送 PUCCH;
方式三: 所述发送模块丟弃所有将要发生前后符号重叠的周期 SRS, 同 时发送所有将要发生前后符号重叠的非周期 SRS与 PUCCH。
28、 一种载波聚合系统中上行信号功率削减方法,
用户设备 (UE)配置了多个时间提前量, 当不同载波承载的上行信道之间 时域符号不对齐、 且不同载波上发生时域符号前后重叠时, 若判定所述 UE 各上行信道的发射功率之和超过所述 UE配置的最大发射功率, 则
基站指示所述 UE对不同载波上发生时域符号前后重叠的上行信道的发 射功率进行削减。
29、 如权利要求 28所述的方法, 其中,
所述基站指示所述 UE功率削减的预定义规则;
则 UE根据基站指示的预定义规则, 对不同载波上发生时域符号前后重 叠的上行信道的发射功率进行削减。
30、 如权利要求 29所述的方法, 其中, 所述预定义规则, 包括: 等比例降低各上行载波的上行信道的发射功率, 直至所述 UE的发射功 率不超过所述 UE配置的最大发射功率为止; 或者,
按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削减 , 直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或者, 仅对不同信道上发生重叠的符号的发射功率进行削减。
31、 如权利要求 28所述的方法, 其中,
所述基站指示所述 UE功率削减方式、 和 /或功率削减对象; 其中, 所述功率削减方式, 包括: 对各上行信道的发射功率进行等比例 削减; 按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削 减;
所述功率削减对象, 包括: 全部上行信道; 指定上行信道。
32、 如权利要求 30或 31所述的方法, 其中,
所述上行信道的优先级的制定方式为如下其中一种或多种相互组合: 按照信道类型制定优先级, 其优先级为: PUCCH、 PUSCH;
按照携带上行信道的载波制定优先级,其优先级从高到低为: PCell、 SCell; 若时域上发生前后符号重叠的上行信道为多个 PUSCH,则按照是否携带 UCI制定优先级, 其优先级从高到低为: 携带 UCI的 PUSCH、 不携带 UCI 的 PUSCH;
按照子帧索引制定优先级, 其优先级从高到低为: 前一子帧中的上行信 道, 后一子帧中的上行信道;
按照子帧索引制定优先级, 其优先级从高到低为: 后一子帧中的上行信 道, 前一子帧中的上行信道;
若时域上发生时域符号前后重叠的上行信道为多个 PUSCH, 则按照 PUSCH携带的是否重传数据制定优先级,其优先级从高到低为:携带新传数 据的 PUSCH、 携带重传数据的 PUSCH。
33、 如权利要求 28、 29、 30或 31所述的方法, 其中,
所述基站通过物理层信令或者高层信令指示所述 UE对不同载波上发生 时域符号前后重叠的上行信道的发射功率进行削减。
34、 一种载波聚合系统中上行信号功率削减方法,
UE 配置了多个时间提前量, 当不同载波承载的上行信道之间时域符号 不对齐、 且不同载波上发生时域符号前后重叠时, 若判定所述 UE各上行信 道的发射功率之和超过所述 UE配置的最大发射功率, 则
UE按照预定义规则对不同载波上发生时域符号前后重叠的上行信道的 发射功率进行削减。
35、 如权利要求 34所述的方法, 其中, 所述预定义规则, 包括: 等比例降低各上行载波的上行信道的发射功率, 直至所述 UE的发射功 率不超过所述 UE配置的最大发射功率为止; 或者,
按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削减 , 直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或者, 仅对不同信道上发生重叠的符号的发射功率进行削减。
36、 如权利要求 35所述的方法, 其中,
仅对不同信道上发生重叠的符号的发射功率进行削减时, 等比例降低发 生重叠的符号的发射功率、 或者, 按照发生重叠的符号所对应的上行信道的 优先级由低到高的顺序依序对不同信道上发生重叠的符号进行功率削减。
37、 如权利要求 34所述的方法, 其中,
所述 UE 按照以下方式之一判断各上行信道的发射功率之和是否超过 UE配置的最大发射功率:
判断当前子帧内各上行载波承载的上行信道发射功率之和是否超过所述 UE配置的最大发射功率; 或者,
判断当前子帧内各上行载波承载的上行信道发射功率与下一子帧准备发 射的各上行载波承载的上行信道发射功率之和是否超过所述 UE配置的最大 发射功率。
38、 如权利要求 35或 36所述的方法, 其中, 所述上行信道的优先级的 制定方式为如下其中一种或多种相互组合:
按照信道类型制定优先级, 其优先级为: PUCCH、 PUSCH;
按照携带上行信道的载波制定优先级,其优先级从高到低为: PCell、 SCell; 若时域上发生前后符号重叠的上行信道为多个 PUSCH,则按照是否携带 UCI制定优先级, 其优先级从高到低为: 携带 UCI的 PUSCH、 不携带 UCI 的 PUSCH;
按照子帧索引制定优先级, 其优先级从高到低为: 前一子帧中的上行信 道, 后一子帧中的上行信道; 按照子帧索引制定优先级, 其优先级从高到低为: 后一子帧中的上行信 道, 前一子帧中的上行信道;
若时域上发生时域符号前后重叠的上行信道为多个 PUSCH, 则按照 PUSCH携带的是否重传数据制定优先级,其优先级从高到低为:携带新传数 据的 PUSCH、 携带重传数据的 PUSCH。
39、 一种载波聚合系统中上行信号功率削减装置, 所述装置包括基站中 的发射功率判断单元和功率削减指示单元,以及 UE中的功率削减执行单元, 其中:
所述发射功率判断单元设置为: 用户设备配置了多个时间提前量时, 判 断不同载波承载的上行信道之间时域符号不对齐时, 不同载波上是否发生时 域符号前后重叠, 如果是, 则再判断所述 UE各上行信道的发射功率之和是 否超过所述 UE配置的最大发射功率;
所述功率削减指示单元设置为: 若所述发射功率判断单元判定所述 UE 各上行信道的发射功率之和超过所述 UE配置的最大发射功率, 则指示所述 UE对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减; 所述功率削减执行单元设置为: 根据所述基站的指示, 对不同载波上发 生时域符号前后重叠的上行信道的发射功率进行削减。
40、 如权利要求 39所述的装置, 其中,
所述功率削减指示单元设置为: 指示所述 UE功率削减的预定义规则; 所述功率削减执行单元设置为: 根据所述功率削减指示单元指示的预定 义规则, 对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削 减;
其中, 所述预定义规则, 包括: 等比例降低各上行载波的上行信道的发 射功率,直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或者, 按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削 减, 直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或 者, 仅对不同信道上发生重叠的符号的发射功率进行削减。
41、 如权利要求 39所述的装置, 其中, 所述功率削减指示单元设置为: 指示所述 UE功率削减方式、 和 /或功率 削减对象;
所述功率削减执行单元设置为: 按照所述功率削减指示单元指示的所述 功率削减方式对所述功率削减对象的发射功率进行削减;
其中, 所述功率削减方式, 包括: 对各上行信道的发射功率进行等比例 削减; 按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削 减; 所述功率削减对象, 包括: 全部上行信道; 指定上行信道。
42、 如权利要求 39、 40或 41所述的装置, 其中,
所述发射功率判断单元设置为: 在接收到 UE处于功率受限状态的通知 时,判定所述 UE各上行信道的发射功率之和超过 UE配置的最大发射功率。
43、 如权利要求 39、 40或 41所述的装置, 其中,
所述功率削减指示单元设置为: 通过物理层信令或者高层信令指示所述 UE对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减。
44、 一种载波聚合系统中上行信号功率削减装置, 所述装置包括 UE中 的发射功率判断模块, 和发射功率削减模块, 其中:
所述发射功率判断模块设置为: 所述 UE配置了多个时间提前量, 当不 同载波承载的上行信道之间时域符号不对齐、 且不同载波上发生时域符号前 后重叠时, 判断所述 UE各上行信道的发射功率之和是否超过所述 UE配置 的最大发射功率;
所述发射功率削减模块设置为: 若所述发射功率判断模块判定所述 UE 各上行信道的发射功率之和超过所述 UE配置的最大发射功率, 则按照预定 义规则对不同载波上发生时域符号前后重叠的上行信道的发射功率进行削减。
45、 如权利要求 44所述的装置, 其中,
所述发射功率削减模块设置为: 按照如下预定义规则对不同载波上发生 时域符号前后重叠的上行信道的发射功率进行削减:
等比例降低各上行载波的上行信道的发射功率, 直至所述 UE的发射功 率不超过所述 UE配置的最大发射功率为止; 或者, 按照上行信道的优先级由低到高的顺序依序对各上行信道进行功率削减 , 直至所述 UE的发射功率不超过所述 UE配置的最大发射功率为止; 或者, 仅对不同信道上发生重叠的符号的发射功率进行削减。
46、 如权利要求 45所述的装置, 其中,
所述发射功率削减模块设置为: 仅对不同信道上发生重叠的符号的发射 功率进行削减时, 等比例降低发生重叠的符号的发射功率、 或者, 按照发生 重叠的符号所对应的上行信道的优先级由低到高的顺序依序对不同信道上发 生重叠的符号进行功率削减。
47、 如权利要求 44、 45或 46所述的装置, 其中,
所述发射功率削减模块设置为: 按照以下方式之一判断各上行信道的发 射功率之和是否超过 UE配置的最大发射功率:
判断当前子帧内各上行载波承载的上行信道发射功率之和是否超过所述 UE配置的最大发射功率; 或者,
判断当前子帧内各上行载波承载的上行信道发射功率与下一子帧准备发 射的各上行载波承载的上行信道发射功率之和是否超过所述 UE配置的最大 发射功率。
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