WO2011144131A1 - 测量参考信号的发送方法和配置指示方法及设备 - Google Patents

测量参考信号的发送方法和配置指示方法及设备 Download PDF

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Publication number
WO2011144131A1
WO2011144131A1 PCT/CN2011/075083 CN2011075083W WO2011144131A1 WO 2011144131 A1 WO2011144131 A1 WO 2011144131A1 CN 2011075083 W CN2011075083 W CN 2011075083W WO 2011144131 A1 WO2011144131 A1 WO 2011144131A1
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WIPO (PCT)
Prior art keywords
srs configuration
dcis
configuration information
srs
dci
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PCT/CN2011/075083
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English (en)
French (fr)
Inventor
李强
马瑞泽·大卫
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2011144131A1 publication Critical patent/WO2011144131A1/zh
Priority to US13/895,929 priority Critical patent/US9313679B2/en
Priority to US15/063,149 priority patent/US9887820B2/en
Priority to US15/863,232 priority patent/US20180131494A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • 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 signaling, i.e. of overhead other than pilot signals
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04JMULTIPLEX COMMUNICATION
    • H04J11/00Orthogonal multiplex systems, e.g. using WALSH codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028Formatting
    • H04L1/0031Multiple signaling transmission
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/08Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • 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
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0058Allocation criteria
    • H04L5/0064Rate requirement of the data, e.g. scalable bandwidth, data priority
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/10Scheduling measurement reports ; Arrangements for measurement reports
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0091Signaling for the administration of the divided path
    • H04L5/0094Indication of how sub-channels of the path are allocated
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/08Access point devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a measurement reference signal configuration indication method, a measurement reference signal transmission method, a wireless access device, and a terminal device.
  • a sounding reference signal is a signal transmitted by a UE to a base station. Both the content terminal and the base station of the SRS are known.
  • the base station After receiving the SRS sent by the terminal, the base station may perform measurement on the wireless channel between the terminal and the base station according to the received SRS.
  • the base station can notify the terminal to transmit a measurement reference signal through a Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the terminal learns the following SRS configuration parameters to accurately transmit the SRS.
  • Comb (comb) used by SRS Comb (comb) used by SRS
  • the base station may send the SRS configuration parameters to the terminal together with the PDCCH, but since the amount of information is relatively large, and the resources of the PDCCH are relatively valuable, the base station may actually pass the high layer signaling. ( RRC signaling )
  • the part of the SRS configuration information is delivered to the terminal in advance, and the remaining parameters are delivered through the PDCCH, so that the PDCCH overhead is relatively small.
  • the base station may first pass the transmission time, the frequency domain location, the bandwidth, the hopping bandwidth, and the like through the high
  • the layer signaling notifies the terminal, and then notifies the terminal of the trigger information (whether the terminal is triggered), the cyclic shift information, and the ⁇ tooth information through the PDCCH.
  • DCI Downlink control signaling
  • the DCI can be divided into multiple formats (DCI format), and each format can respectively carry different control signaling, DCI of each format. All of them may include multiple information elements (IEs), and each IE carries different control information.
  • the DCI of some formats includes SRS configuration information bits for carrying SRS configuration information (that is, one or more bits that trigger SRS), while DCIs of some formats do not, and thus there is no function of triggering SRS.
  • an eNB may have multiple DCIs sent to the UE, and at least two DCIs have information bits carrying SRS configuration information, and at this time, how will the base station trigger the UE to send SRS to avoid confusion. , is a problem that needs to be studied.
  • Embodiments of the present invention provide a method and a configuration indication method and apparatus for measuring a reference signal to improve accuracy and flexibility of indicating an SRS configuration.
  • the embodiment of the present invention provides the following technical solutions:
  • a measurement reference signal configuration indication method includes:
  • each of the at least two DCIs including a measurement reference signal SRS configuration information bit;
  • the at least two DCIs are transmitted to the terminal in one subframe to jointly indicate the SRS configuration by the SRS configuration information bits in the at least two DCIs.
  • a method for transmitting a measurement reference signal comprising:
  • each of the at least two DCIs includes a measurement reference signal SRS configuration information bit
  • Determining an SRS configuration jointly indicated by SRS configuration information bits in the at least two DCIs Determining an SRS configuration jointly indicated by SRS configuration information bits in the at least two DCIs; and transmitting an SRS to the wireless access device according to the determined SRS configuration.
  • a wireless access device includes:
  • a generating module configured to generate at least two DCIs, where each of the at least two DCIs includes a measurement reference signal SRS configuration information bit;
  • a sending module configured to send the at least two DCIs to the terminal in one subframe, to jointly indicate the SRS configuration by using SRS configuration information bits in the at least two DCIs.
  • a terminal device comprising:
  • a receiving module configured to receive at least two DCIs that are sent by the wireless access device in one subframe, and each of the at least two DCIs includes a measurement reference signal SRS configuration information bit;
  • a determining module configured to determine an SRS configuration that is jointly indicated by SRS configuration information bits in at least two DCIs received by the receiving module
  • a sending module configured to send, to the wireless access device, an SRS according to the SRS configuration determined by the determining module.
  • the radio access device generates and sends at least two DCIs to the terminal in the same subframe to jointly indicate the SRS configuration by using the SRS configuration information bits of the at least two DCIs. Since the wireless access device collectively indicates the SRS configuration through the SRS configuration information bits of the multiple DCIs, it is advantageous to coordinate the SRS configuration information bits of the multiple DCIs to indicate a uniquely determined SRS configuration, which can improve the accuracy of indicating the SRS configuration. Sex and flexibility.
  • FIG. 1 is a schematic flowchart of an SRS configuration indication method according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of an SRS configuration indication method according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of wireless access provided by an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a terminal device according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a communication system according to an embodiment of the present invention.
  • the embodiment of the invention provides a method for transmitting and measuring a reference signal SRS, a configuration indication method, a device and a system, which can improve the accuracy and flexibility of indicating the SRS configuration.
  • the wireless access device referred to in the embodiment of the present invention refers to an entity that can implement the wireless access management function of the user equipment, and the wireless access device may have different names, locations, and product forms in different networks. .
  • the wireless access device mentioned in the following embodiments of the present invention may be referred to as: Universal Mobile Telecommunications System (UMTS) Terrestrial Radio Access Network (E-UTRAN, Evolved UMTS Territorial Radio Access Network) Evolved base station (eNodeB), home base station (HeNB) or other type of base station; or UMTS Territorial Radio Access Network (UTRAN) GSM EDGE Radio Access Network (GERAN, GSM EDGE Radio Access) Base station controller in Network), or Radio Network Controller (RNC); or high-rate packet data access network in Wideband Code Division Multiple Access (CDMA) network (HRPD-AN, High Rate Packet Data Access Network)
  • EDG Evolved Packet Data Gateway
  • WiMAX Worldwide Interoperability for Microwave Access
  • WiMAX Worldwide Interoperability for Microwave Access
  • An embodiment of the method for measuring the reference signal configuration information of the present invention may include: generating at least two downlink control signaling DCIs, each of the at least two DCIs including a measurement reference signal SRS configuration information bit;
  • the subframe transmits the at least two DCIs to the terminal to jointly indicate the SRS configuration by using SRS configuration information bits in the at least two DCIs.
  • the specific steps may include:
  • the wireless access device generates at least two DCIs, and each of the at least two DCIs includes Measuring reference signal SRS configuration information bits;
  • the wireless access device may specify an SRS configuration parameter to the terminal when it needs to measure the wireless channel between it and a certain terminal (for example, measuring channel quality); and the terminal may according to the wireless access device.
  • the specified SRS configuration parameter sends an SRS to the wireless access device.
  • the radio access device may use the SRS configuration information bits of the at least two downlink control signaling DCIs to jointly indicate one or more of the following SRS configuration parameters: SRS transmission time, frequency domain location of SRS transmission, bandwidth of SRS, SRS The frequency hopping bandwidth, the cyclic shift used by the SRS, the comb used by the SRS, and the number of SRS antenna ports.
  • the format of the at least two downlink control signaling DCIs may be the same or different.
  • the mapping between the different values of the SRS configuration information bits and the SRS configuration in the different combinations may be agreed between the terminal and the wireless access device.
  • the SRS configuration information bit can be regarded as an IE for carrying SRS configuration information in the DCI.
  • the location of the SRS configuration information bits in different formats of DCI may be the same or different.
  • the manner in which the radio access device uses the generated SRS configuration information bits of at least two DCIs to jointly indicate the SRS configuration is various, for example, may be at least two DCIs generated according to a preset joint coding rule.
  • the SRS configuration is jointly indicated by the joint coding result of the SRS configuration information bits in the at least two DCIs, and the SRS configuration information bits in the at least two DCIs are spliced and combined (the sequence of the splicing combination may be agreed or indicated), and the splicing combination
  • the different values of the multiple bits corresponding to each other indicate the corresponding SRS configuration (for example, the SRS configuration information bits of the 3 bits included in the two DCIs are spliced and combined, and the different values of the 3 bits combined by the splicing can indicate up to 8 types.
  • different SRS configurations may be an SRS configuration indicated by one or more (or more) SRS configuration information bits of the generated at least two DCIs (the remaining DCI SRS configuration information bits are invalidated, Or, as a reference condition for whether the SRS configuration that is commonly indicated is valid, the SRS configuration that is commonly indicated as the SRS configuration information bits of the generated at least two DCIs.
  • the SRS configuration information bits of at least two DCIs may be uniformly unified to indicate a uniquely determined SRS configuration (which may be valid). , or may be invalid), the two parties follow the agreed mapping correspondence, and finally get a certain indication result, which will not cause confusion in configuration.
  • the radio access device may generate at least two DCIs having different indication priorities, where the SRS configuration information bits of the highest indicated priority DCI of the at least two DCIs indicate the SRS configuration, that is, the at least two An SRS configuration indicated by an SRS configuration information bit of a DCI having a different indication priority in the priority DCI, as an SRS configuration jointly indicated by the SRS configuration information bits of the at least two DCIs having different indication priorities, and the The SRS configuration information bits of the DCI other than the DCI indicating the highest priority among the at least two DCIs may be considered invalid.
  • the SRS configuration information bits of the DCI other than the DCI of the highest indicated priority among the at least two DCIs and the SRS configuration information bits of the DCI of the highest indicated priority indicate the same SRS configuration
  • the same The SRS configuration is used as the SRS configuration that is jointly indicated by the SRS configuration information bits in the at least two DCIs; and the SRS configuration information bits of the DCI except the DCI indicating the highest priority among the at least two DCIs are prioritized with the highest indication.
  • the SRS configuration information bits of the level DCI indicate different SRS configurations, and the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the radio access device may generate at least two DCIs with different indication priorities, where if there are at least two DCIs with different indication priorities, other SCI configuration information bits of the DCI except the highest indicated priority DCI If it is set to an invalid state (for example, an off state or another agreed invalid state), that is, a state indicating that the SRS configuration is not performed, the SRS configuration indicated by the SRS configuration information bit of the DCI indicating the highest priority may serve as the at least two An SRS configuration in which the SRS configuration information bits of the DCI having different indication priorities are commonly indicated; when the SRS configuration information bits of the DCI other than the DCI indicating the highest priority are also indicated in the at least two DCIs, the SRS configuration information is also indicated.
  • the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the wireless access device may generate at least two DCIs of the same or different format, where only one SRS configuration information bit of the DCI of the at least two DCIs indicates that the SRS configuration is performed (the remaining part of the DCI SRS configuration information) If the bit is in an invalid state, the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration jointly indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs are When the SRS configuration is instructed, the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the wireless access device may generate at least two DCIs of the same or different format, where only one SRS configuration information bit of the DCI of the at least two DCIs indicates that the SRS configuration is performed (the remaining part)
  • the SRS configuration information bit of the DCI is in an invalid state, and the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration jointly indicated by the SRS configuration information bits in the at least two DCIs; when the at least two DCIs are When the SRS configuration information bits all indicate the same SRS configuration, the same SRS configuration is used as the SRS configuration commonly indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs are indicated When different SRS configurations are configured, the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the radio access device may generate two DCIs of the same or different format, where if the SRS configuration information bit of one of the two DCIs indicates the SRS configuration, the SRS configuration information bit of the other DCI can One of the SRS configurations in the indicated SRS configuration, when the SRS configuration information bit of the other DCI indicates the same SRS configuration as the SRS configuration information bit of the one DCI, the same SRS configuration is taken as the above two
  • the SRS configuration information bits in the DCI are jointly indicated by the SRS configuration; when the SRS configuration information of the other DCI and the SRS configuration information bit of the one DCI indicate different SRS configurations, the SRS configuration information bits in the two DCIs jointly indicate Invalid SRS configuration; if the SRS configuration indicated by the SRS configuration information bit of one of the two DCIs is an SRS configuration that cannot be indicated by another SCI configuration information bit of the DCI, then when the other DCI is When the SRS configuration information bit indicates that the SRS configuration is performed, the SRS configuration information bits in the
  • the manner of using the SRS configuration information bits of the at least two DCIs to jointly indicate the SRS configuration is not limited.
  • the SRS configuration referred to herein refers to a specific setting of a set of SRS parameters.
  • other SRS parameters are configured by the radio access device by using high-level signaling, and only SBS parameters such as comb and CS need to be in the physical layer.
  • one SRS configuration can be referred to as (combO, CS0)
  • another SRS configuration can be referred to as (combl, CS4), and so on.
  • the wireless access device sends the at least two DCIs to the terminal in one subframe to jointly indicate the SRS configuration by using SRS configuration information bits in the at least two DCIs.
  • the wireless access device may send the foregoing at least two to the terminal in the same subframe. DCI, so that the terminal receives the at least two DCIs as much as possible at the same time.
  • the terminal may parse the at least two DCIs from the PDCCH of the same subframe, combine the values of the SRS configuration information bits of the at least two DCIs, and determine the SRS of the at least two DCIs according to a predetermined mapping correspondence relationship.
  • the configuration information bits jointly indicate the SRS configuration, and send the SRS to the wireless access device according to the determined SRS configuration.
  • the radio access device further transmits a partial SRS configuration parameter delivered by the high layer signaling
  • the UE receives at least two DCIs from the PDCCH of the same subframe, and the at least two DCIs instruct the SRS to send the SRS.
  • the SRS configuration parameter that is sent by the radio access device in advance through the high-level signaling and the SRS configuration parameter that is currently indicated by the DCI received from the PDCCH may be combined to determine the entire SRS configuration, and sent according to the determined SRS configuration parameter.
  • SRS The following describes a method for transmitting a measurement reference signal from the perspective of a terminal.
  • An embodiment of the method for transmitting a reference signal according to the present invention may include: receiving at least two DCIs that are sent by the wireless access device in the same subframe, and each DCI of the at least two DCIs includes measurement reference signal SRS configuration information. And determining an SRS configuration that is jointly indicated by the SRS configuration information bits of the at least two DCIs; and sending the SRS to the wireless access device according to the determined SRS configuration.
  • the terminal may compare the indication priorities of the at least two DCIs; and compare the highest DCIs of the at least two DCIs that indicate the priorities.
  • the SRS configuration indicated by the SRS configuration information bit is determined as the SRS configuration indicated by the SRS configuration information bits of the at least two DCIs.
  • the terminal may compare the indication priorities of the at least two DCIs; if the at least two DCIs have the highest indication priority
  • the SRS configuration information bits of other DCIs other than the DCI are set to an invalid state (for example, an off state or other agreed invalid state), and the SRS configuration information bits of the DCI indicating the highest priority among the at least two DCIs to be compared are compared.
  • the indicated SRS configuration determines an SRS configuration that is commonly indicated by the SRS configuration information bits of the at least two DCIs.
  • the terminal may determine the indication error, that is, determine.
  • the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration, and when the SRS configuration indication error is determined, generally not sent. SRS.
  • the terminal may compare the indication priorities of the at least two DCIs; if the at least two DCIs have the highest indication priority
  • the SRS configuration information bits of other DCIs other than the DCI are set to an invalid state (for example, an off state or other agreed invalid state), and the SRS configuration information bits of the DCI indicating the highest priority among the at least two DCIs to be compared are compared.
  • the indicated SRS configuration determines an SRS configuration that is commonly indicated by the SRS configuration information bits of the at least two DCIs.
  • the terminal may further determine that the highest indication is prioritized. Whether the level of the DCI indicates the same SRS configuration information as the SRS configuration information bits of the other DCI except the DCI having the highest indication priority, and if so, determining that the same SRS configuration is the SRS configuration information bit in the at least two DCIs.
  • the commonly indicated SRS configuration if no (ie, the SRS configuration information bits of the at least two DCIs indicate different SRS configurations), determining that the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the terminal may determine whether only one DCI SRS configuration information bit of the at least two DCIs indicates SRS configuration (ie, the rest).
  • the SRS configuration information bit of the DCI is in an invalid state. If yes, the SRS configuration information of the only one DCI is determined to indicate the SRS configuration, and the SRS configuration indicated by the SRS configuration information bits in the at least two DCIs is determined; If no (ie, the SRS configuration information bits of the at least two DCIs indicate that the SRS configuration is performed), it is determined that the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the terminal may determine whether only one DCI SRS configuration information bit of the at least two DCIs indicates that the SRS configuration is performed (the remaining part of the DCI) The SRS configuration information bit is in an invalid state. If yes, the SRS configuration indicated by the SRS configuration information bit of only one DCI is determined, and the SRS configuration jointly indicated by the SRS configuration information bits in the at least two DCIs is determined; (When the SRS configuration information bits of the at least two DCIs indicate that the SRS configuration is performed), the terminal may further determine that the SRS configuration information bits of the at least two DCIs indicate the same SRS configuration, and if yes, determine the same SRS.
  • the SRS configuration that is commonly indicated by the SRS configuration information bits in the at least two DCIs; if not (that is, the SRS configuration information of the at least two DCIs)
  • the information bits indicate different SRS configurations, and it is determined that the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the terminal receives two DCIs of the same or different format, and the SRS configuration indicated by the SRS configuration information bit of one of the two DCIs is the SRS configuration information bit of the other DCI. If the SRS configuration of the other DCI is the SRS configuration, the terminal can determine whether the SRS configuration information bit of the other DCI is the same as the SRS configuration information of the DCI. If yes, determine the SRS configuration.
  • the same SRS configuration is an SRS configuration that is commonly indicated by the SRS configuration information bits in the two DCIs; if no (ie, the SRS configuration information of the other DCI is different from the SRS configuration information bit of the one DCI), then Determining that the SRS configuration information bits in the two DCIs together indicate an invalid SRS configuration.
  • the terminal may further determine the other DCI if the SRS configuration indicated by the SRS configuration information bit of one of the two DCIs is an SRS configuration that cannot be indicated by the SRS configuration information bit of another DCI.
  • the SRS configuration information bit also indicates the SRS configuration, and if yes, determining that the SRS configuration information bits in the two DCIs together indicate an invalid SRS configuration; if not (ie, the SRS configuration information bit of the other DCI is set to an invalid state)
  • the SRS configuration indicated by the SRS configuration information bits of one of the DCIs is determined, and the SRS configuration indicated by the SRS configuration information bits in the two DCIs is determined.
  • the terminal and the wireless access device are not limited to the foregoing agreed-upon manner, so that the SRS configuration information bits of the at least two DCIs are used to jointly indicate the SRS configuration, and of course, other manners may be selected.
  • the SRS configuration information bits that implement at least two DCIs jointly indicate the SRS configuration, and are not exhaustive here.
  • the embodiments of the present invention are applicable to an LTE system, an LTE-A system, or other evolved systems.
  • the radio access device mentioned in the embodiments of the present invention may be, for example, an evolved base station (eNB), a common base station (NodeB) (various base stations may be collectively referred to as a base station), or other devices having a wireless access function.
  • the radio access device generates and sends at least two DCIs to the terminal in the same subframe to jointly indicate the SRS configuration by using the SRS configuration information bits of the at least two DCIs. Since the wireless access device collectively indicates the SRS configuration through the SRS configuration information bits of the multiple DCIs, it is advantageous to coordinate the SRS configuration information bits of the multiple DCIs to indicate a uniquely determined SRS configuration, which can improve the accuracy of indicating the SRS configuration. Sex and flexibility.
  • the following describes the manner in which the SRS configuration information bits of the DCIs of the two different formats are used to indicate the SRS configuration in the wireless access device as an example.
  • the wireless access device generates two DCIs, and each of the at least two DCIs includes a measurement reference signal SRS configuration information bit.
  • the information formats of the two DCIs may be the same or different.
  • the radio access device when the radio access device can measure the channel quality of the current radio channel between the terminal and the terminal, the SRS configuration parameter is specified to the terminal; and the terminal can be configured according to the SRS configuration parameter specified by the radio access device. To send SRS.
  • the radio access device may jointly indicate the SRS configuration information bits of the two DCIs by jointly coding to indicate one or more of the following SRS configuration parameters: SRS transmission time, frequency domain location of SRS transmission, bandwidth of SRS, hop of SRS Frequency bandwidth, cyclic shift used by SRS, comb teeth used by SRS, number of SRS antenna ports.
  • a mapping correspondence between different values and SRS configurations under different combinations may be agreed in advance between the terminal and the wireless access device.
  • the wireless access device sends the two DCIs to the terminal in one subframe to jointly indicate the SRS configuration by using SRS configuration information bits in the at least two DCIs.
  • the terminal receives the two DCIs that are sent by the wireless access device, and determines an SRS configuration that is jointly indicated by the SRS configuration information bits of the two DCIs.
  • the wireless access device may send two DCIs to the terminal in one subframe, so that the terminal receives the at least two DCIs as much as possible.
  • the SRS configuration information bits of the two DCIs are combined to determine the SRS configuration that is jointly indicated by the SRS configuration information bits of the two DCIs.
  • the radio access device also uses the partial SRS configuration parameters delivered by the high layer signaling in advance, if the UE receives two DCIs from the PDCCH of the same subframe, and the two DCIs indicate that they send the SRS, the UE may Part of the SRS configuration parameters delivered by the radio access device through high-level signaling in advance The SRS configuration parameters indicated by the DCI received from the PDCCH are combined to determine the entire SRS configuration to transmit the SRS according to the determined SRS configuration parameters.
  • the manner in which the radio access device uses the generated SRS configuration information bits of the two DCIs to indicate the SRS configuration is various.
  • the two DCIs generated according to the preset joint coding rule may be adopted.
  • the joint coding result of the SRS configuration information bits in the two DCIs jointly indicates the SRS configuration, and the SRS configuration information bits in the two DCIs are spliced and combined (the sequence of the splicing combination can be agreed or indicated), and the splicing combination is more
  • the different values of the bits correspond to the corresponding SRS configuration.
  • the SRS configuration information bits of the 3 bits included in the two DCIs are spliced and combined, and the different values of the 3 bits combined by the splicing can indicate up to 8 different SRSs.
  • it may be an SRS configuration indicated by one or more of the generated two DCIs (or the SRS configuration information bits of the remaining DCIs), or as a common indication. Whether the SRS configuration is valid or not, the SRS configuration is commonly indicated as the SRS configuration information bits of the two DCIs generated.
  • the SRS configuration information bits of the two DCIs can be uniformly unified to indicate a uniquely determined SRS configuration (which may be valid). , may also be invalid), the two parties in accordance with the agreed mapping correspondence, and finally get a certain indication result, will not cause confusion in the configuration.
  • the radio access device may generate two DCIs with different indication priorities, and the SRS configuration information bits of the highest indicated priority DCI of the two DCIs indicate the SRS configuration, that is, the two have different indication priorities.
  • the SRS configuration indicated by the SRS configuration information bit of the highest-priority DCI in the level DCI is the SRS configuration indicated by the two SRS configuration information bits of the DCI with different indication priorities, and the highest of the two DCIs
  • the SRS configuration information bits of other DCIs other than the DCI indicating the priority may be considered invalid.
  • the terminal may compare the indication priorities of the at least two DCIs, and compare the highest indication priorities of the at least two DCIs that are compared.
  • the SRS configuration indicated by the SRS configuration information bits of the DCI is determined as the SRS configuration indicated by the SRS configuration information bits of the at least two DCIs.
  • the same SRS is used. Configuring the SRS to be collectively indicated as the SRS configuration information bits in the above two DCIs
  • the SRS configuration information bits of the DCI except the DCI of the highest indicated priority are different from the SRS configuration information bits of the DCI of the highest indicated priority, and the SRS configuration in the two DCIs
  • the SRS configuration information bits collectively indicate an invalid SRS configuration.
  • the radio access device may generate two DCIs with different indication priorities, where the SRS configuration information bits of the DCIs other than the DCI with the highest indication priority among the DCIs having different indication priorities are set to The invalid state (for example, the off state or other agreed invalid state), that is, the state indicating that the SRS configuration is not performed, the SRS configuration indicated by the SRS configuration information bit of the DCI indicating the highest priority may be different as the two The SRS configuration information bits of the DCI indicating the priority DCI are commonly indicated; when the SRS configuration information bits of the DCI other than the DCI indicating the highest priority indicate the SRS configuration, the two DCIs are The SRS configuration information bits in the common indicate an invalid SRS configuration.
  • the invalid state for example, the off state or other agreed invalid state
  • the radio access device may generate two DCIs of the same or different format, where only one SCI configuration information bit of the DCI in the two DCIs indicates SRS configuration (the remaining part of the DCI SRS configuration information bit is In the invalid state, the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration jointly indicated by the SRS configuration information bits in the two DCIs; when the SRS configuration information bits of the two DCIs indicate the SRS configuration The SRS configuration information bits in the two DCIs together indicate an invalid SRS configuration.
  • the radio access device may generate two DCIs of the same or different format, where only one SCI configuration information bit of the DCI in the two DCIs indicates SRS configuration (the remaining part of the DCI SRS configuration information bit is In the invalid state, the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration commonly indicated by the SRS configuration information bits in the two DCIs; when the SRS configuration information bits of the two DCIs all indicate the same SRS In the configuration, the same SRS configuration is used as the SRS configuration indicated by the SRS configuration information bits in the two DCIs. When the SRS configuration information bits of the two DCIs indicate different SRS configurations, the two DCIs are configured. The SRS configuration information bits collectively indicate an invalid SRS configuration.
  • the radio access device may generate two DCIs of the same or different format, where if the SRS configuration information bit of one of the two DCIs indicates the SRS configuration, the SRS configuration information bit of the other DCI can One of the SRS configurations indicated in the SRS configuration, then, when the other DCI When the SRS configuration information bit indicates the same SRS configuration as the SRS configuration information bit of the one DCI, the same SRS configuration is used as the SRS configuration commonly indicated by the SRS configuration information bits in the two DCIs; when the other DCI is When the SRS configuration information and the SRS configuration information bit of the one DCI indicate different SRS configurations, the SRS configuration information bits in the two DCIs jointly indicate an invalid SRS configuration; if one of the two DCIs has the SRS configuration information bit of the DCI The indicated SRS configuration is an SRS configuration that cannot be indicated by another SCI configuration information bit of the DCI, and when the SRS configuration information bit of the other DCI indicates that the SRS configuration is performed, the SRS configuration in
  • the terminal can determine the SRS configuration indicated by the SRS configuration information bits in the two DCIs according to the corresponding mapping correspondence.
  • the terminal sends an SRS to the wireless access device according to the determined SRS configuration.
  • the wireless access device can receive the SRS sent by the terminal, and measure the channel quality of the current wireless channel between the terminal and the terminal according to the received SRS.
  • the joint coding mode of the SRS configuration information bits in multiple DCIs in the embodiment of the present invention is exemplified by several specific examples.
  • format0 formats of DCI with SRS configuration information bits (that is, the ability to trigger SRS), which are called format0, format4, and formatla, where the DCI of format4 has 2 bits of SRS configuration information.
  • the bit, formatO and formatla DCI have lbit SRS configuration information bits.
  • mapping between the SRS configuration information bit and the SRS configuration is as shown in Table 1:
  • mapping between the SRS configuration information bit and the SRS configuration is as shown in Table 2:
  • mapping between the value of the SRS configuration information bit and the mapping of the SRS configuration is as shown in Table 3:
  • a plurality of the SRS configurations mentioned herein, such as the two, may be the same SRS configuration, or may be different SRS configurations.
  • the SRS configuration 5 may be The indication is the same as one of the SRS configurations 1-3 in Table 1, or may be different from the SRS configurations 1-3.
  • the SRS configuration referred to herein refers to a specific setting of a set of SRS parameters.
  • other SRS parameters are configured by the radio access device with high layer signaling, and only SBS parameters such as comb and CS need to be performed at the physical layer.
  • Configuration then, the above SRS configuration 1 can refer to (combO, CS0), configuration 2 can refer to (comb, CS4), and so on.
  • the wireless access device sends the DCIs of format4 and formatla, or FormatO and formatla in the same subframe to the same terminal.
  • the terminal needs to combine the multiple DCIs received at the same time to jointly determine the SRS configuration.
  • Example (1) For example, if the DCIs of format la and format4 are transmitted in the same subframe, the transmitting and receiving parties can process in the following manner.
  • the radio access device uses the joint encoding of the Ibit in the DCI of Format la and the 2D in the DCI of Format 4.
  • the mapping relationship between the encoding and the SRS configuration can be as shown in Table 4:
  • the terminal parses out two DCIs, and then determines the corresponding SRS configuration by combining the values of the SRS configuration information bits of the two DCIs. For example, the terminal parses the SRS configuration information bit carrying information of the format 4 DCI to be "10", and the SRS configuration information bit of the formatl DCI carries the information as " ⁇ , the terminal determines that the SRS configuration indicated by the radio access device is SRS. Configuration 7, correspondingly, the terminal can send an SRS to the wireless access device according to SRS configuration 7.
  • the UE may send the SRS in combination with the previously obtained SRS configuration and the SRS configuration determined according to the two DCIs.
  • the radio access device uses joint coding for the Ibit in the DCI of FormatO and the Ibit in the DCI of Format 1 a, coding and
  • the mapping relationship of the SRS configuration can be as shown in Table 5:
  • the terminal can preset Table 4 and Table 5. For example, the terminal parses out the SRS configuration information bit carrying information of the DCI of the formatO as " ⁇ , and the terminal carries the information "1" on the SRS configuration information bit of the DCI of the formatla, the terminal determines The SRS configuration indicated by the radio access device is SRS configuration 6. Correspondingly, the terminal may send the SRS to the radio access device according to the SRS configuration 6.
  • the joint coding mechanism of the SRS configuration information bits of the DCI based on different formats such as Table 4 or Table 5 is such that in one subframe, the total number of bits available for indicating the SRS configuration is increased, and the wireless access device can pick more Reasonable configuration to optimize SRS transmission.
  • SRS configurations in Table 5 and Table 6 may be the same for detection reliability (for example, SRS configuration 6 and SRS configuration 4 may be the same configuration), and some SRS configurations may be Is set to an invalid configuration.
  • the indication priority of each format format can be agreed. Of course, one format is the highest indication priority. If the DCI of at least two formats is received from the same subframe, the terminal configures the indication of the SRS configuration information bits in the DCI of the Format indicating the highest priority after comparing the indication priorities of the DCIs of the various formats.
  • the SRS configuration manner according to the DCI of the highest indication priority format selected from the DCI of the at least two formats may also be regarded as the SRS configuration information bits of the DCI of at least two formats of the same subframe. A special way of indicating SRS configuration by joint coding.
  • Format 4 is a format indicating a high priority.
  • the mapping relationship between the radio access device and the DCI of the format4 can still be as shown in Table 1.
  • the mapping between the wireless access device and the DCI of the formatla indicates that the SRS configuration can still be as shown in the table. 3 is shown.
  • the mapping relationship between the SRS configuration information bit joint coding value and the SRS configuration can be as shown in Table 6:
  • the terminal after receiving the DCI of format4 and formatla from the same subframe, the terminal performs SRS configuration only according to the DCI indication of format4, regardless of the specific value of the SRS configuration information bit of the DCI of formatla.
  • the type of SRS configuration that the wireless access device can indicate is reduced relative to the indication manner of Table 4 or Table 5, but since the SRS configuration is performed according to the indication of the DCI of the highest indication priority (format4), Even if formatla is not detected, it does not affect the final configuration.
  • the formato is a format indicating a high priority
  • the mapping relationship triggered by the radio access device using the DCI of the formatO can still be as shown in Table 2.
  • the mapping relationship triggered by the radio access device using the formatl DCI alone can still be as shown in Table 3.
  • the mapping relationship between the SRS configuration information bit and the SRS configuration can be as shown in Table 7:
  • the SRS configuration information bits of the DCI of the format other than the format with the highest indicated priority may be set to "off". "State, only use the DCI of the format indicating the highest priority to indicate the specific SRS configuration.
  • Tables 6 and 7 can be modified into Tables 8 and 9 below.
  • the mapping relationship between the SRS configuration information bit joint coding value and the SRS configuration can be as shown in Table 8:
  • mapping relationship between the SRS configuration information bit and the SRS configuration can be as shown in Table 9:
  • the terminal may determine the reception error at this time.
  • the SRS is not transmitted to the wireless access device.
  • the terminal will not send the SRS with a configuration error, and thus can avoid sending the SRS according to the wrong SRS configuration, thereby making it unnecessary. Interference.
  • the low indication priority Format can be the same SRS configuration as the high indication priority Format DCI, then the DCI of both formats is indicated as this configuration. In this case, it may also be indicated that the SRS configuration is collectively indicated (in this case, the SRS configuration information bit of the DCI of the Format indicating the low priority is not required to be set to the off state).
  • mapping table can be as shown in Table 3, and configuration 5 and configuration 1 (Table 1) and configuration 4 (Table 2) can indicate the same SRS configuration.
  • Tables 8 and 9 can be retrofitted to Tables 10 and 11 below.
  • mapping relationship between the SRS configuration information bit and the SRS configuration can be as shown in Table 10:
  • mapping relationship between the SRS configuration information bit and the SRS configuration can be as shown in Table 11:
  • the terminal can preset Table 6 and Table 7, or Tables 8 and 9, or Tables 10 and 11. For example, the terminal parses out two After the SRS configuration information bit of the DCI, the SRS configuration indicated by the wireless access device is determined according to the correspondence in the mapping table, and the terminal may send the SRS to the wireless access device according to the SRS configuration.
  • the wireless access device may use any one of them to indicate the SRS configuration, and the DCI of the other format is set to the off state, indicating that it is not used to indicate the SRS configuration. Then, for example, the DCIs of the two formats indicate that an SRS configuration is performed, indicating that an error is indicated, and conversely, indicating that the indication is correct.
  • mapping relationship between the SRS configuration information bit and the SRS configuration can be as shown in Table 12:
  • mapping relationship between the SRS configuration information bit and the SRS configuration may be as shown in Table 13:
  • the DCI of the format of different formats is sent in the same subframe
  • the DCI of the two formats is indicated as such a configuration, it may also be indicated as indicating the SRS configuration in common.
  • the SRS configuration information bit of the DCI of the Format is not required to be set to the off state at this time. ). This has the advantage that, in the case where the DCI of the Format of the different format indicates the same SRS configuration, the SRS is transmitted in the correct configuration as long as the terminal correctly demodulates the DCI of one of the formats.
  • mapping table is shown in Table 3, and configuration 5 and configuration 1 (Table 1), configuration 4 (Table 2) actually indicates the same configuration, then Table 12 and Table 13 can be modified.
  • Table 14 and Table 15 below.
  • the mapping relationship between the SRS configuration information bit joint coding value and the SRS configuration can be as shown in Table 14:
  • mapping relationship between the SRS configuration information bit and the SRS configuration can be as shown in Table 15:
  • the mapping relationship between the SRS configuration information bit joint coding value and the SRS configuration can be as shown in FIG.
  • the mapping relationship between the SRS configuration information bit and the SRS configuration can be as shown in Table 17:
  • the terminal can preset Table 12 and Table 13, or Table 14 and Table 15, or Tables 16 and 17. For example, after the terminal parses the SRS configuration information bits of the two DCIs, the SRS configuration indicated by the radio access device is determined according to the correspondence in the mapping table, and the terminal may send the SRS to the radio access device according to the SRS configuration.
  • different format DCI combinations can use different joint coding indication schemes. For example, when the DCI of format4 and formala is sent in one subframe, the indication scheme as shown in Table 8 or Table 10 is adopted, and When formatO and formatla are delivered at the same time, the indication scheme of Table 17 is adopted.
  • the radio access device generates and sends at least two DCIs to the terminal in the same subframe to jointly indicate the SRS configuration by using the SRS configuration information bits of the at least two DCIs. Since the wireless access device collectively indicates the SRS configuration through the SRS configuration information bits of the multiple DCIs, it is advantageous to coordinate the SRS configuration information bits of the multiple DCIs to indicate a uniquely determined SRS configuration, which can improve the accuracy of indicating the SRS configuration. Sex and flexibility.
  • a wireless access device 300 may include: a generating module 310 and a sending module 320.
  • the generating module 310 is configured to generate at least two downlink control signalings DCI, each of the at least two DCIs includes a measurement reference signal SRS configuration information bit, and the generating module 310 may be a processor.
  • the sending module 320 is configured to send the at least two DCIs to the terminal in one subframe to jointly indicate the SRS configuration by using the SRS configuration information bits in the at least two DCIs; the sending module 320 may be an interface.
  • the manner in which the wireless access device 300 uses the generated SRS configuration information bits of at least two DCIs to jointly indicate the SRS configuration is various, for example, at least two may be generated according to a preset joint coding rule.
  • the DCI is used to jointly indicate the SRS configuration by the joint coding result of the SRS configuration information bits in the at least two DCIs, and splicing and combining the SRS configuration information bits in the at least two DCIs (the sequence of the splicing combination may be agreed or indicated), and splicing
  • the different values of the combined multiple bits correspond to the corresponding SRS configuration (for example, the SRS configuration information bits of the 3 bits included in the two DCIs are spliced and combined, and the different values of the 3 bits in the splicing combination may indicate at most 8 Or different SRS configurations); or, may be an SRS configuration indicated by one or more (or more) SRS configuration information bits of the generated at least two DCIs (and the remaining DCI SRS configuration information bits are invalid)
  • the SRS configuration information bits of the at least two DCIs may be uniformly unified to indicate a uniquely determined SRS configuration (which may be valid). , or may be invalid), the two parties follow the agreed mapping correspondence, and finally get a certain indication result, which will not cause confusion in configuration.
  • the generating module 310 may generate at least two DCIs with different indication priorities, where the SRS configuration information bits of the highest indicated priority DCI of the at least two DCIs indicate the SRS configuration, that is, the at least two An SRS configuration indicated by an SRS configuration information bit of a DCI having a different indication priority in a different priority DCI, as an SRS configuration commonly indicated by the SRS configuration information bits of the at least two DCIs having different indication priorities, and the at least The SRS configuration information bits of other DCIs other than the highest indicated priority DCI in the two DCIs may be considered invalid.
  • the SRS configuration information bits of the DCI other than the DCI of the highest indicated priority among the at least two DCIs and the SRS configuration information bits of the DCI of the highest indicated priority indicate the same SRS configuration
  • the same The SRS configuration is used as the SRS configuration that is jointly indicated by the SRS configuration information bits in the at least two DCIs; and the SRS configuration information bits of the DCI except the DCI indicating the highest priority among the at least two DCIs are prioritized with the highest indication.
  • the SRS configuration information bits of the level DCI indicate different SRS configurations, and the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the generating module 310 may generate at least two DCIs with different indication priorities, where if the at least two DCIs having different indication priorities have different DCI SDI configuration information bit settings except the highest indicated priority DCI If it is an invalid state (for example, an off state or another agreed invalid state), that is, a state indicating that the SRS configuration is not performed, the SRS configuration indicated by the SRS configuration information bit of the DCI indicating the highest priority may be the at least two The SRS configuration information bits of the DCI with different indication priorities are commonly indicated by the SRS configuration information bits; when the SRS configuration information bits of the DCI other than the highest indicated DCI of the at least two DCIs also indicate the SRS configuration, the The SRS configuration information bits in at least two DCIs together indicate an invalid SRS configuration.
  • an invalid state for example, an off state or another agreed invalid state
  • the generating module 310 may generate at least two DCIs of the same or different format, where when only one SCI configuration information bit of the DCI of the at least two DCIs indicates that the SRS configuration is performed (the remaining part of the DCI SRS configuration information bits) Invalid state), the SRS configuration information bit of the DCI is indicated
  • the SRS configuration is used as the SRS configuration that is commonly indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs all indicate the SRS configuration, the SRS configuration information in the at least two DCIs Bits collectively indicate an invalid SRS configuration.
  • the generating module 310 may generate at least two DCIs of the same or different format, where when only one SCI configuration information bit of the DCI of the at least two DCIs indicates that the SRS configuration is performed (the remaining part of the DCI SRS configuration information bits) The SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs are indicated.
  • the same SRS configuration is used as the SRS configuration indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs indicate different SRS configurations, The SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the generating module 310 may generate two DCIs of the same or different format, where the SRS configuration information indicated by the SRS configuration information bit of one of the two DCIs can be indicated by the SRS configuration information bit of another DCI.
  • One of the SRS configurations in the SRS configuration when the SRS configuration information bit of the other DCI and the SRS configuration information bit of the one DCI indicate the same SRS configuration, the same SRS configuration is used as the above two DCIs.
  • the SRS configuration information bits in the SRS configuration are commonly indicated by the SRS configuration information bits; when the SRS configuration information of the other DCI and the SRS configuration information bits of the one DCI indicate different SRS configurations, the SRS configuration information bits in the two DCIs jointly indicate invalid SRS configuration; if the SRS configuration indicated by the SRS configuration information bit of one of the two DCIs is an SRS configuration that cannot be indicated by another SCI configuration information bit of the DCI, then the SRS of the other DCI is When the configuration information bit indicates that the SRS configuration is performed, the SRS configuration information bits in the two DCIs together indicate an invalid SRS configuration; when the other DCI is When the SRS configuration information bit is set to the invalid state, the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration jointly indicated by the SRS configuration information bits in the two DCIs.
  • the terminal can determine the SRS configuration indicated by the SRS configuration information bits in the two DCIs according to the corresponding mapping correspondence.
  • the wireless access device 300 of this embodiment can be wirelessly connected in the foregoing method embodiment.
  • the function of the module may be specifically implemented according to the method in the foregoing method embodiment.
  • a terminal device 400 may include: a receiving module 410, a determining module 420, and a sending module 430.
  • the receiving module 410 is configured to receive at least two radio access devices that are sent in one subframe.
  • each of the at least two DCIs includes a measurement reference signal SRS configuration information bit;
  • the receiving module 410 may be an interface;
  • the determining module 420 is configured to determine an SRS configuration that is commonly indicated by the SRS configuration information bits of the at least two DCIs received by the receiving module 410; the determining module 420 may be a processor;
  • the sending module 430 is configured to send an SRS to the wireless access device according to the SRS configuration determined by the determining module 420, where the sending module 430 can be an interface.
  • the determining module 420 may include: a comparison submodule and a determination submodule (not shown in FIG. 4).
  • a comparison submodule configured to compare the indication priorities of the at least two DCIs received by the receiving module 410, and a determining submodule, configured to compare the SRS configuration information of the highest indicated priority DCI among the at least two DCIs that are compared by the comparison submodule
  • the SRS configuration indicated by the bit is determined as an SRS configuration that is commonly indicated by the SRS configuration information bits of the at least two DCIs; or, in the receiving module, the DCI of the at least two DCIs other than the DCI having the highest indicated priority is received.
  • the SRS configuration indicated by the SRS configuration information bit of the highest priority DCI of the at least two DCIs that are compared by the comparison submodule is determined as the SRS of the at least two DCIs.
  • the configuration information bits are configured through the commonly indicated SRS.
  • the determining module 420 may compare the indication priorities of the at least two DCIs; If the SRS configuration information bits of the DCI other than the DCI having the highest indicated priority are set to an invalid state (for example, an off state or other agreed invalid state), the highest indication among the at least two DCIs to be compared is prioritized.
  • the SRS configuration indicated by the SRS configuration information bits of the level DCI is determined as the SRS configuration indicated by the SRS configuration information bits of the at least two DCIs.
  • the determining module 420 may further determine the highest. Determining whether the DCI of the priority indicates the same SRS configuration as the SRS configuration information bits of the DCI except the DCI having the highest indication priority, and if so, determining that the same SRS configuration is the SRS configuration in the at least two DCIs. If the SRS configuration information bits of the at least two DCIs indicate different SRS configurations, the SRS configuration information bits in the at least two DCIs jointly indicate an invalid SRS configuration.
  • the determining module 420 may determine whether only one SCI configuration information bit of the DCI in the at least two DCIs indicates that the SRS configuration is performed. (ie, the SRS configuration information bit of the remaining part of the DCI is in an invalid state), and if so, the SRS configuration information of the only one DCI is said to indicate the SRS configuration, and the SRS configuration information bits in the at least two DCIs are jointly indicated. If the SRS configuration information bits of the at least two DCIs indicate that the SRS configuration is performed, the SRS configuration information bits in the at least two DCIs jointly indicate an invalid SRS configuration.
  • the determining module 420 may determine whether only one SCI configuration information bit of the DCI in the at least two DCIs indicates that the SRS configuration is performed. (The SRS configuration information bit of the remaining part of the DCI is in an invalid state). If yes, the SRS configuration indicated by the SRS configuration information bit of only one DCI is determined, and the SRS jointly indicated by the SRS configuration information bits in the at least two DCIs is determined.
  • the determining module 420 may further determine that the SRS configuration information bits of the at least two DCIs indicate the same SRS configuration, and if so, Determining that the same SRS configuration is an SRS configuration that is commonly indicated by the SRS configuration information bits in the at least two DCIs; if no (ie, the SRS configuration information bits of the at least two DCIs indicate different SRS configurations), determining the at least The SRS configuration information bits in the two DCIs together indicate an invalid SRS configuration.
  • the receiving module 410 receives two DCIs of the same or different format, and the SRS configuration indicated by the SRS configuration information bit of one of the two DCIs, the SRS configuration of another DCI is configured. If the SRS configuration of the SRS configuration can be indicated by the information bit, the determining module 420 can determine whether the SRS configuration information bit of the other DCI is the same SRS configuration as the SRS configuration information bit of the one DCI, if And determining that the same SRS configuration is an SRS configuration that is commonly indicated by the SRS configuration information bits in the two DCIs; if no (that is, the SRS configuration information of the other DCI is different from the SRS configuration information bit indication of the one DCI.
  • the configuration determines that the SRS configuration information bits in the two DCIs together indicate an invalid SRS configuration.
  • the determining module 420 may further determine the other Whether the SRS configuration information bit of the DCI also indicates the SRS configuration, and if yes, determining that the SRS configuration information bits in the two DCIs together indicate an invalid SRS configuration; if not, indicating the SRS configuration information bit of the one DCI
  • the SRS configuration determines an SRS configuration that is commonly indicated by the SRS configuration information bits in the two DCIs.
  • the terminal device 400 in this embodiment may be a terminal in the foregoing method embodiment, which may be specifically implemented according to the method in the foregoing method embodiment, and the specific implementation process may refer to the related description in the foregoing embodiment, where No longer.
  • the radio access device generates and sends at least two DCIs to the terminal device 400 in the same subframe to jointly indicate the SRS configuration by using the SRS configuration information bits of the at least two DCIs. Since the wireless access device collectively indicates the SRS configuration through the SRS configuration information bits of the multiple DCIs, it is advantageous to coordinate the SRS configuration information bits of the multiple DCIs to indicate a uniquely determined SRS configuration, and the terminal device 400 can determine After the SRS configuration indicated by the received SRS configuration information bits of the at least two DCIs, the SRS is sent to the wireless access device according to the determined SRS configuration, which improves the accuracy and flexibility of indicating the SRS configuration.
  • a communication system provided by an embodiment of the present invention may include: a wireless access device 510 and a terminal device 520.
  • the radio access device 500 is configured to generate at least two downlink control signaling DCIs, where each DCI of the at least two DCIs includes a measurement reference signal SRS configuration information bit;
  • the terminal sends the at least two DCIs to jointly indicate the SRS configuration by using the SRS configuration information bits in the at least two DCIs.
  • the terminal device 520 is configured to receive at least two DCIs that are sent by the wireless access device 510 in one subframe, and each DCI of the at least two DCIs includes a measurement reference signal SRS configuration information bit; determining the at least two DCIs.
  • the SRS configuration information bits collectively indicate an SRS configuration; the SRS is transmitted to the wireless access device 510 in accordance with the determined SRS configuration.
  • the manner in which the radio access device 510 uses the generated SRS configuration information bits of at least two DCIs to jointly indicate the SRS configuration is various, for example, at least two may be generated according to preset joint coding rules.
  • the DCI is used to jointly indicate the SRS configuration by the joint coding result of the SRS configuration information bits in the at least two DCIs, and splicing and combining the SRS configuration information bits in the at least two DCIs (the sequence of the splicing combination may be agreed or indicated), and splicing
  • the different values of the combined multiple bits correspond to the corresponding SRS configuration (for example, the SRS configuration information bits of the 3 bits included in the two DCIs are spliced and combined, and the different values of the 3 bits in the splicing combination may indicate at most 8 Or different SRS configurations); or, may be an SRS configuration indicated by one or more (or more) SRS configuration information bits of the generated at least two DCIs (and the remaining DCI SRS configuration information bits are invalid) ,
  • the SRS configuration information bits of the at least two DCIs may be uniformly unified to indicate a uniquely determined SRS configuration (which may be valid). , or may be invalid), the two parties follow the agreed mapping correspondence, and finally get a certain indication result, which will not cause confusion in configuration.
  • the wireless access device 510 may generate at least two DCIs having different indication priorities, and the SRS configuration information bits of the highest indicated priority DCI of the at least two DCIs indicate the SRS configuration, that is, the at least two The SRS configuration indicated by the SRS configuration information bits of the DCI having the highest indication priority in the different priority DCIs, and the SRS configuration indicated by the SRS configuration information bits of the at least two DCIs having different indication priorities, and the at least The SRS configuration information bits of other DCIs other than the highest indicated priority DCI in the two DCIs may be considered invalid.
  • the configuration information bit when the SRS configuration information bit of the DCI with the highest indication priority indicates the same SRS configuration, the same SRS configuration is used as the SRS configuration commonly indicated by the SRS configuration information bits in the at least two DCIs;
  • the SRS configuration information bits of the DCI except the DCI of the highest indicated priority among the at least two DCIs are different from the SRS configuration information bits of the DCI of the highest indicated priority, and the SRS in the at least two DCIs
  • the configuration information bits collectively indicate an invalid SRS configuration.
  • the wireless access device 510 may generate at least two DCIs with different indication priorities, if the at least two DCIs with different indication priorities have SRS configuration information bit settings of other DCIs except the highest indicated priority DCI. If the status is invalid (for example, set to the off state or other agreed invalid state), that is, the state indicating that the SRS configuration is not performed, the SRS configuration indicated by the SRS configuration information bit of the DCI indicating the highest priority may be the at least two An SRS configuration in which the SRS configuration information bits of the DCI having different indication priorities are commonly indicated; when the SRS configuration information bits of the DCI other than the DCI indicating the highest priority are also indicated in the at least two DCIs, the SRS configuration information is also indicated. The SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the wireless access device 510 may generate at least two DCIs of the same or different format, when only one SRS configuration information bit of the DCI of the at least two DCIs indicates that the SRS configuration is performed (the remaining part of the DCI SRS configuration information) If the bit is in an invalid state, the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration jointly indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs are When the SRS configuration is instructed, the SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the wireless access device 510 may generate at least two DCIs of the same or different format, when only one SCI configuration information bit of the DCI of the at least two DCIs indicates that the SRS configuration is performed (the remaining part of the DCI SRS configuration information bits)
  • the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS configuration indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs are indicated.
  • the same SRS configuration is used as the SRS configuration indicated by the SRS configuration information bits in the at least two DCIs; when the SRS configuration information bits of the at least two DCIs indicate different SRS configurations, The SRS configuration information bits in the at least two DCIs together indicate an invalid SRS configuration.
  • the wireless access device 510 can generate two DCIs of the same or different format, where The SRS configuration indicated by the SRS configuration information bit of one of the two DCIs is one of the SRS configurations that can be indicated by the SRS configuration information bit of another DCI, and then, when the other DCI is SRS When the configuration information bit indicates the same SRS configuration as the SRS configuration information bit of the one DCI, the same SRS configuration is used as the SRS configuration commonly indicated by the SRS configuration information bits in the two DCIs; when the other DCI is configured in the SRS configuration When the information and the SRS configuration information bits of the one DCI indicate different SRS configurations, the SRS configuration information bits in the two DCIs jointly indicate an invalid SRS configuration; if the SRS configuration information bits of one of the two DCIs are indicated by the SRS configuration information bits The SRS configuration is an SRS configuration that cannot be indicated by the SRS configuration information bit of another DCI.
  • the SRS configuration information bits in the two DCIs When the SRS configuration information bit of the other DCI indicates that the SRS configuration is performed, the SRS configuration information bits in the two DCIs. Commonly indicating an invalid SRS configuration; when the SRS configuration information bit of the other DCI is set to an invalid state, the SRS configuration indicated by the SRS configuration information bit of the one DCI is used as the SRS in the two DCIs
  • the configuration information bits collectively indicate the SRS configuration.
  • the terminal device 520 can determine the SRS configuration indicated by the SRS configuration information bits in the two DCIs according to the mapping correspondence corresponding thereto.
  • the wireless access device 510 of this embodiment may be the wireless access device in the foregoing method embodiment
  • the terminal device 520 may be the terminal in the foregoing method embodiment, which may be used to implement the foregoing method embodiment.
  • the functions of the respective functional modules may be specifically implemented according to the method in the foregoing method embodiments.
  • the embodiment of the invention further provides a communication system, which may include:
  • Wireless access device 300 and/or terminal device 400 are examples of wireless access device 300 and/or terminal device 400.
  • the wireless access device in the embodiment of the present invention generates and transmits at least two DCIs to the terminal in the same subframe to jointly indicate the SRS configuration by using the SRS configuration information bits of the at least two DCIs. Since the wireless access device collectively indicates the SRS configuration through the SRS configuration information bits of the multiple DCIs, it is advantageous to coordinate the SRS configuration information bits of the multiple DCIs to indicate a uniquely determined SRS configuration, which can improve the accuracy of indicating the SRS configuration. Sex and flexibility.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Read-only memory, random access memory, disk or optical disk, etc.

Description

测量参者信号的发送方法和配置指示方法及设备 本申请要求于 2010 年 11 月 16 日提交中国专利局、 申请号为 201010546458.9、 发明名称为 "测量参考信号的发送方法和配置指示方法及设 备" 的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域, 具体涉及测量参考信号配置指示方法、测量参 考信号的发送方法、 无线接入设备、 终端设备。
背景技术
在终端 (UE, User equipment )和基站( eNB ) 的通信过程中, 测量参考 信号 (SRS, sounding reference signal )是由 UE向基站发送的一种信号。 SRS 的内容终端与基站都是已知的。 基站接收到终端发送的 SRS后, 可以根据接收 到该 SRS对该终端到基站之间的无线信道进行测量。
在增强长期演进( LTE- A , Long Term Evolution Advanced )等系统中, 基 站可通过物理下行控制信道( PDCCH, Physical Downlink Control Channel )通 知终端发送测量参考信号。
终端获知以下的 SRS配置参数, 以准确发送 SRS。
SRS发送时间
SRS发送的频域位置
SRS的带宽
SRS的跳频带宽
SRS所使用的循环移位(CS, cyclic shift )
SRS所使用的梳齿(comb )
SRS发送使用的天线端口数量
为了将上述 SRS配置参数通知到终端,基站可以用 PDCCH将这些 SRS配置 参数一起下发给终端, 但是由于信息量比较大, 而 PDCCH的资源相对比较宝 贵, 所以实际上基站可能先通过高层信令( RRC signaling )将部分 SRS配置信 息提前下发给终端, 余下的参数才通过 PDCCH下发配置, 这样 PDCCH的开销 就比较小。 例如, 基站可先将发送时间、 频域位置、 带宽、 跳频带宽等通过高 层信令通知终端, 再通过 PDCCH将触发信息(是否触发该终端)、 循环移位信 息和^ ^齿信息通知该终端。
下行控制信令 ( DCI, Downlink control signaling )指在 PDCCH上传输的信 令, DCI可分为多种格式(DCI format ), 而每种格式可分别承载不同的控制信 令, 每种格式的 DCI中都可包括多个信息位(IE, information element ), 每个 IE分别携带不同作用的控制信息。 其中, 有些格式的 DCI包含用于承载 SRS配 置信息的 SRS配置信息位(即具有触发 SRS的 1个或多个比特), 而有些格式的 DCI则没有, 因而没有触发 SRS的功能。
在一些应用场景下, 在某个子帧, eNB可能有多条 DCI发送给 UE, 且其中 至少有两条 DCI具有承载 SRS配置信息的信息位, 而此时基站将如何触发 UE发 送 SRS以避免混乱, 是一个需要研究的问题。
发明内容
本发明实施例提供测量参考信号的发送方法和配置指示方法及设备,以提 高指示 SRS配置的准确性和灵活性。
为解决上述技术问题, 本发明实施例提供以下技术方案:
一种测量参考信号配置指示方法, 包括:
生成至少两条下行控制信令 DCI , 所述至少两条 DCI中的每个 DCI包括测 量参考信号 SRS配置信息位;
在一个子帧向终端发送所述至少两条 DCI, 以通过所述至少两条 DCI中的 SRS配置信息位共同指示 SRS配置。
一种测量参考信号的发送方法, 包括:
接收无线接入设备在一个子帧下发的至少两条 DCI , 所述至少两条 DCI中 的每个 DCI包括测量参考信号 SRS配置信息位;
确定所述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 按照确定出的 SRS配置, 向所述无线接入设备发送 SRS。
一种无线接入设备, 包括:
生成模块, 用于生成至少两条 DCI, 所述至少两条 DCI中的每个 DCI包括 测量参考信号 SRS配置信息位; 发送模块, 用于在一个子帧向终端发送所述至少两条 DCI, 以通过所述至 少两条 DCI中的 SRS配置信息位共同指示 SRS配置。
一种终端设备, 包括:
接收模块, 用于接收无线接入设备在一个子帧下发的至少两条 DCI, 所述 至少两条 DCI中的每个 DCI包括测量参考信号 SRS配置信息位;
确定模块, 用于确定所述接收模块接收的至少两条 DCI中的 SRS配置信息 位共同指示的 SRS配置;
发送模块, 用于按照所述确定模块确定出的 SRS配置, 向所述无线接入设 备发送 SRS。
由上可见,本发明实施例无线接入设备生成并在同一个子帧向终端发送至 少两条 DCI, 以利用该至少两条 DCI的 SRS配置信息位共同指示 SRS配置。 由于 无线接入设备是通过多条 DCI的 SRS配置信息位来共同指示 SRS配置, 因而有 利于协调多条 DCI的 SRS配置信息位以指示出一个唯一确定的 SRS配置, 可以 提高指示 SRS配置的准确性和灵活性。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施 例或现有技术描述中所需要使用的附图作筒单地介绍,显而易见地, 下面描述 中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付 出创造性劳动性的前提下, 还可以根据这些附图获得其它的附图。
图 1是本发明实施例一提供的一种 SRS配置指示方法流程示意图; 图 2是本发明实施例二提供的一种 SRS配置指示方法流程示意图; 图 3是本发明实施例提供的无线接入设备示意图;
图 4是本发明实施例提供的一种终端设备示意图;
图 5是本发明实施例提供的一种通信系统示意图。
具体实施方式
本发明实施例提供一种测量参考信号 SRS的发送方法和配置指示方法及 设备和系统, 能够提高指示 SRS配置的准确性和灵活性。
为了使本技术领域的人员更好地理解本发明方案,下面将结合本发明实施 例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描述, 显然, 所 描述的实施例仅仅是本发明一部分的实施例, 而不是全部的实施例。基于本发 明中的实施例 ,本领域普通技术人员在没有做出创造性劳动前提下所获得的所 有其他实施例, 都应当属于本发明保护的范围。
首先说明的是,本发明实施例所指的无线接入设备是指可实现用户设备无 线接入管理功能的实体, 而无线接入设备在不同的网络中可能具有不同的名 称、 位置和产品形态。
举例来说, 本发明下述实施例中提及的无线接入设备可指: 演进通用移动 通信系统(UMTS, Universal Mobile Telecommunications System ) 陆地无线接 入网 (E-UTRAN, Evolved UMTS Territorial Radio Access Network ) 中的演进 基站(eNodeB )、 家庭基站( HeNB )或其它类型的基站; 或 UMTS陆地无线 接入网 ( UTRAN, UMTS Territorial Radio Access Network ) I GSM EDGE无线 接入网 (GERAN, GSM EDGE Radio Access Network ) 中的基站控制器、 或无 线网络控制器(RNC, Radio Network Controller ); 或者也可指宽带码分多址接 入( CDMA, Code Division Multiple Access ) 网络中具有高速率分组数据接入 网 ( HRPD-AN, High Rate Packet Data Access Network )接入网逻辑功能的实 体、 无线局域网 (WLAN, Wireless Local Area Network ) 中具有演进分组数据 网关( EPDG, Evolved Packet Data Gateway )接入网逻辑功能的实体; 微波存 取全球互通 ( WiMAX, Worldwide Interoperability for Microwave Access ) 网络 中的接入服务网络基站( ASN-BS , Access Service Network Base Station )或其 它网络中实现终端无线接入管理的实体。 实施例一
本发明测量参考信号配置信息的下发方法的一个实施例, 可包括: 生成至 少两条下行控制信令 DCI,该至少两条 DCI中的每个 DCI包括测量参考信号 SRS 配置信息位;在一个子帧向终端发送上述至少两条 DCI,以通过该至少两条 DCI 中的 SRS配置信息位共同指示 SRS配置。
参见图 1 , 具体步骤可以包括:
110、 无线接入设备生成至少两条 DCI, 该至少两条 DCI中的每个 DCI包括 测量参考信号 SRS配置信息位;
在实际应用中,无线接入设备可在需要对其与某终端之间的无线信道进行 测量时 (例如测量信道质量), 向该终端指定 SRS配置参数; 而终端则可根据 该无线接入设备指定的 SRS配置参数向该无线接入设备发送 SRS。
无线接入设备可以利用至少两条下行控制信令 DCI的 SRS配置信息位, 共 同指示出如下 SRS配置参数的一种或多种: SRS发送时间、 SRS发送的频域位 置、 SRS的带宽、 SRS的跳频带宽、 SRS所使用的循环移位、 SRS所使用的梳 齿, SRS天线端口数。 其中, 上述至少两条下行控制信令 DCI的格式(format ) 可以是相同或不同的。
其中, 终端和无线接入设备之间可事先约定不同组合(包括不同数量和 / 或不同格式的 DCI的组合) 下的 SRS配置信息位不同取值与 SRS配置的映射对 应关系。 SRS配置信息位可认为是 DCI中用于携带 SRS配置信息的 IE, 不同格 式的 DCI中的 SRS配置信息位的位置可能是相同, 也可能是不同的。
在实际应用中, 无线接入设备利用生成的至少两条 DCI的 SRS配置信息位 共同指示 SRS配置的方式是多种多样的, 例如, 可能是根据预置的联合编码规 则生成的至少两条 DCI , 通过该至少两条 DCI中的 SRS配置信息位的联合编码 结果共同指示 SRS配置, 将该至少两条 DCI中的 SRS配置信息位拼接组合(拼 接组合的先后顺序可约定或指示), 拼接组合出的多个比特的不同取值对应指 示相应的 SRS配置 (例如拼接组合两条 DCI共包含的 3个比特的 SRS配置信息 位, 拼接组合出的 3个比特的不同取值最多可指示 8种不同的 SRS配置); 或者, 也可能是将生成的至少两条 DCI中的其中一条(或多条) 的 SRS配置信息位所 指示的 SRS配置 (而剩余 DCI的 SRS配置信息位作无效设置, 或, 作为共同指 示的 SRS配置是否有效的参考条件 ), 作为生成的至少两条 DCI的 SRS配置信息 位共同指示的 SRS配置。 但无论选择那种联合指示方式, 由于是利用至少两条 DCI的 SRS配置信息位共同指示,故而可协调统一至少两条 DCI的 SRS配置信息 位以指示出一个唯一确定的 SRS配置(可能是有效的, 也可能是无效的), 双 方按照约定的映射对应关系, 最终可获得一个确定的指示结果, 不会造成配置 的混乱。 举例来说, 无线接入设备可生成至少两条具有不同指示优先级的 DCI, 其 中,通过该至少两条 DCI中的最高指示优先级的 DCI的 SRS配置信息位指示 SRS 配置, 即将该至少两条具有不同指示优先级 DCI中最高指示优先级的 DCI的 SRS配置信息位所指示的 SRS配置, 作为该至少两条具有不同指示优先级的 DCI的 SRS配置信息位共同指示的 SRS配置,而该至少两条 DCI中除最高指示优 先级的 DCI外的其它 DCI的 SRS配置信息位可视为无效。
此外,当上述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS 配置信息位, 与该最高指示优先级的 DCI的 SRS配置信息位指示同样的 SRS配 置时, 则该同样的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同 指示的 SRS配置; 当该至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI 的 SRS配置信息位, 与该最高指示优先级的 DCI的 SRS配置信息位指示不同的 SRS配置, 该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备可生成至少两条不同指示优先级的 DCI, 其中, 若 该至少两条具有不同指示优先级的 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位设置为无效状态 (例如为 off状态或其它约定的无效状 态), 即为指示不进行 SRS配置的状态, 则最高指示优先级的 DCI的 SRS配置信 息位所指示的 SRS配置, 可作为该至少两条具有不同指示优先级的 DCI的 SRS 配置信息位共同指示的 SRS配置; 当该至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位也指示进行 SRS配置时, 则该至少两条 DCI 中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备可生成至少两条相同或不同格式的 DCI, 其中, 当 该至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部 分 DCI的 SRS配置信息位为无效状态 ), 则该一条 DCI的 SRS配置信息位指示的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 该至少两条 DCI的 SRS配置信息位都指示进行 SRS配置时, 则该至少两条 DCI 中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备可生成至少两条相同或不同格式的 DCI, 其中, 当 该至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部 分 DCI的 SRS配置信息位为无效状态), 则该一条 DCI的 SRS配置信息位指示的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 上述至少两条 DCI的 SRS配置信息位均指示同样的 SRS配置时,则该同样的 SRS 配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 当该 至少两条 DCI的 SRS配置信息位指示不同的 SRS配置时,则该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备可生成两条相同或不同格式的 DCI, 其中, 若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS 配置信息位所能够指示的 SRS配置中的其中一种 SRS配置,则,当该另一条 DCI 的 SRS配置信息位与该一条 DCI的 SRS配置信息位指示同样的 SRS配置时,该同 样的 SRS配置被作为上述两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 该另一条 DCI的 SRS配置信息与该一条 DCI的 SRS配置信息位指示不同的 SRS 配置时, 该两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置; 若两条 DCI 中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置 信息位所不能够指示的一种 SRS配置, 则当该另一条 DCI的 SRS配置信息位指 示进行 SRS配置时, 则上述两条 DCI中的 SRS配置信息位共同指示无效的 SRS 配置; 当该另一条 DCI的 SRS配置信息位设置为无效状态时,则该其中一条 DCI 的 SRS配置信息位指示的 SRS配置作为该两条 DCI中的 SRS配置信息位共同指 示的 SRS配置。
可以理解, 在实际应用中, 不限于上述举例出的利用至少两条 DCI的 SRS 配置信息位共同指示 SRS配置的方式。
需要说明的是, 此处所指的 SRS配置指一组 SRS参数的具体设置, 例如其 它 SRS参数均由无线接入设备用高层信令配置好, 而只有 comb, CS等 SRS参数 需要在物理层进行配置, 那么, 一种 SRS配置可指(combO, CS0 ), 另一种 SRS 配置可以指 (combl , CS4 ), 以此类推。
120、 无线接入设备在一个子帧向终端发送上述至少两条 DCI, 以通过该 至少两条 DCI中的 SRS配置信息位共同指示 SRS配置。
在实际应用中, 无线接入设备可在同一个子帧, 向终端发送上述至少两条 DCI, 以便于终端尽可能同时接收到该至少两条 DCI。
终端则可从同一个子帧的 PDCCH上解析出上述至少两条 DCI后,结合该至 少两条 DCI的 SRS配置信息位的取值, 按照预定的映射对应关系, 确定出该至 少两条 DCI的 SRS配置信息位共同指示出的 SRS配置, 并按照该确定出的 SRS 配置, 向该无线接入设备发送 SRS。
此外, 若无线接入设备事先还通过高层信令下发的部分 SRS配置参数, 则 UE若从同一个子帧的 PDCCH接收到了至少两条 DCI,且该至少两条 DCI指示其 发送 SRS,则 UE可将无线接入设备事先通过高层信令下发的部分 SRS配置参数 和当前从 PDCCH上接收到的 DCI所指示的 SRS配置参数相结合, 确定出整个 SRS配置, 按照确定出的 SRS配置参数发送 SRS。 下面从终端的角度介绍一种测量参考信号的发送方法。
本发明测量参考信号的发送方法的一个实施例, 可包括: 接收无线接入设 备在同一子帧下发的至少两条 DCI , 该至少两条 DCI中的每个 DCI包括测量参 考信号 SRS配置信息位;确定该至少两条 DCI的 SRS配置信息位共同指示的 SRS 配置; 按照该确定出的 SRS配置, 向上述无线接入设备发送 SRS。
在一种应用场景下, 若上述至少两条 DCI具有不同的指示优先级; 则终端 可比较该至少两条 DCI的指示优先级; 将比较出的该至少两条 DCI中最高指示 优先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为该至少两条 DCI的 SRS配置信息位共同指示的 SRS配置。
在另一种应用场景下, 终端若接收到至少两条 DCI具有不同的指示优先 级; 则终端可比较该至少两条 DCI的指示优先级; 若该至少两条 DCI中除具有 最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位设置为无效状态 (例如 off状态或其它约定的无效状态), 则将比较出的该至少两条 DCI中最高指示优 先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为该至少两条 DCI的 SRS 配置信息位共同指示的 SRS配置。 此外, 若该至少两条 DCI中除具有最高指示 优先级的 DCI外的其它 DCI的 SRS配置信息位设置为非无效状态 (即指示进行 SRS配置的状态), 则终端可确定指示错误, 即确定该至少两条 DCI中的 SRS配 置信息位共同指示无效的 SRS配置, 确定 SRS配置指示错误时, 一般不发送 SRS。
在另一种应用场景下, 终端若接收到至少两条 DCI具有不同的指示优先 级; 则终端可比较该至少两条 DCI的指示优先级; 若该至少两条 DCI中除具有 最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位设置为无效状态 (例如 off状态或其它约定的无效状态), 则将比较出的该至少两条 DCI中最高指示优 先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为该至少两条 DCI的 SRS 配置信息位共同指示的 SRS配置。 此外, 若该至少两条 DCI中除具有最高指示 优先级的 DCI外的其它 DCI的 SRS配置信息位设置为非无效状态 (即指示进行 SRS配置的状态), 则终端可进一步判断该最高指示优先级的 DCI,是否与除具 有最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位指示同样的 SRS配置, 若是, 则确定该同样的 SRS配置为上述至少两条 DCI中的 SRS配置信息位共同 指示的 SRS配置; 若否 (即该至少两条 DCI的 SRS配置信息位指示不同的 SRS 配置 ), 则确定该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
在另一种应用场景下, 终端若接收到至少两条相同或不同格式的 DCI, 则 终端可判断该至少两条 DCI中是否仅有一条 DCI的 SRS配置信息位指示进行 SRS配置(即其余部分 DCI的 SRS配置信息位为无效状态), 若是, 则将该仅有 一条 DCI的 SRS配置信息位说指示的 SRS配置, 确定该至少两条 DCI中的 SRS配 置信息位共同指示的 SRS配置; 若否 (即该至少两条 DCI的 SRS配置信息位都 指示进行 SRS配置时 ), 则确定该至少两条 DCI中的 SRS配置信息位共同指示无 效的 SRS配置。
在另一种应用场景下, 终端若接收到至少两条相同或不同格式的 DCI, 则 终端可判断该至少两条 DCI中是否仅有一条 DCI的 SRS配置信息位指示进行 SRS配置(其余部分 DCI的 SRS配置信息位为无效状态), 若是, 则将该仅有一 条 DCI的 SRS配置信息位所指示的 SRS配置, 确定该至少两条 DCI中的 SRS配置 信息位共同指示的 SRS配置; 若否 (即该至少两条 DCI的 SRS配置信息位都指 示进行 SRS配置时 ), 则终端可进一步判断该至少两条 DCI的 SRS配置信息位所 指示同样的 SRS配置, 若是, 则确定该同样的 SRS配置为上述至少两条 DCI中 的 SRS配置信息位共同指示的 SRS配置; 若否(即该至少两条 DCI的 SRS配置信 息位指示不同的 SRS配置 ) , 则确定该至少两条 DCI中的 SRS配置信息位共同指 示无效的 SRS配置。
在另一种应用场景下, 终端若接收到两条相同或不同格式的 DCI, 且该两 条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置信息位所能够指示的 SRS配置中的其中一种 SRS配置, 则终端可判断 当该另一条 DCI的 SRS配置信息位,是否与该一条 DCI的 SRS配置信息位指示同 样的 SRS配置,若是,则确定该同样的 SRS配置为上述两条 DCI中的 SRS配置信 息位共同指示的 SRS配置; 若否(即该另一条 DCI的 SRS配置信息与该一条 DCI 的 SRS配置信息位指示不同的 SRS配置 ), 则确定该两条 DCI中的 SRS配置信息 位共同指示无效的 SRS配置。此外, 若两条 DCI中的其中一条 DCI的 SRS配置信 息位指示的 SRS配置,为另一条 DCI的 SRS配置信息位所不能够指示的一种 SRS 配置, 则终端可进一步判断该另一条 DCI的 SRS配置信息位是否也指示进行 SRS配置,若是,则确定上述两条 DCI中的 SRS配置信息位共同指示无效的 SRS 配置; 若否(即该另一条 DCI的 SRS配置信息位设置为无效状态时), 则将上述 其中一条 DCI的 SRS配置信息位所指示的 SRS配置, 确定该两条 DCI中的 SRS配 置信息位共同指示的 SRS配置。
可以理解,在实际应用中, 终端和无线接入设备之间不限于上述举例出的 约定方式, 来实现利用至少两条 DCI的 SRS配置信息位共同指示 SRS配置, 当 然也可选择其它约定的方式, 实现至少两条 DCI的 SRS配置信息位共同指示 SRS配置, 此处不再累举。
本发明实施例可应用于 LTE系统、 LTE-A系统或其它演进系统。 需要说明 的是, 本发明实施例提及的无线接入设备例如可为演进基站 (eNB )、 普通基 站(NodeB ) (各种基站可统称为基站)或其它具有无线接入功能的设备。
由上可见,本实施例中无线接入设备生成并在同一个子帧向终端发送至少 两条 DCI, 以利用该至少两条 DCI的 SRS配置信息位共同指示 SRS配置。 由于无 线接入设备是通过多条 DCI的 SRS配置信息位来共同指示 SRS配置, 因而有利 于协调多条 DCI的 SRS配置信息位以指示出一个唯一确定的 SRS配置, 可以提 高指示 SRS配置的准确性和灵活性。 实施例二
为便于更好的理解本发明实施例的技术方案,下面以无线接入设备将两条 不同格式的 DCI的 SRS配置信息位共同指示 SRS配置的方式为例, 进行更为详 细的描述。
201、 无线接入设备生成两条 DCI, 该至少两条 DCI中的每个 DCI包括测量 参考信号 SRS配置信息位;
其中, 上述两条 DCI的信息格式可以是相同或不同的。
在实际应用中,当无线接入设备可在需要测量其与终端间的当前无线信道 的信道质量时, 向该终端指定 SRS配置参数; 而终端则可根据该无线接入设备 指定的 SRS配置参数来发送 SRS。
无线接入设备可以将两条 DCI的 SRS配置信息位通过联合编码来共同指示 出如下 SRS配置参数的一种或多种: SRS发送时间、 SRS发送的频域位置、 SRS 的带宽、 SRS的跳频带宽、 SRS所使用的循环移位、 SRS所使用的梳齿、 SRS 天线端口数。
终端和无线接入设备之间可事先约定不同组合(包括不同数量和 /或不同 格式的 DCI的组合) 下的不同取值与 SRS配置的映射对应关系。
202、 无线接入设备在一个子帧向终端发送上述两条 DCI, 以通过该至少 两条 DCI中的 SRS配置信息位共同指示 SRS配置。
203、 终端接收无线接入设备下发的上述两条 DCI, 确定该两条 DCI的 SRS 配置信息位共同指示的 SRS配置;
在实际应用中, 无线接入设备可在一个子帧向终端发送两条 DCI, 以便于 终端尽可能同时接收到该至少两条 DCI。
终端可从同一个子帧的 PDCCH上解析出上述两条 DCI后, 结合该两条 DCI 的 SRS配置信息位的取值, 确定出该两条 DCI的 SRS配置信息位共同指示出的 SRS配置。
此外, 若无线接入设备事先还通过高层信令下发的部分 SRS配置参数, 则 UE若从同一个子帧的 PDCCH接收到了两条 DCI, 且该两条 DCI指示其发送 SRS,则 UE可将无线接入设备事先通过高层信令下发的部分 SRS配置参数和当 前从 PDCCH上接收到的 DCI所指示的 SRS配置参数相结合, 确定出整个 SRS配 置, 以按照确定出的 SRS配置参数发送 SRS。
在实际应用中, 无线接入设备利用生成的两条 DCI的 SRS配置信息位共同 指示 SRS配置的方式是多种多样的, 例如, 可能是根据预置的联合编码规则生 成的两条 DCI , 通过该两条 DCI中的 SRS配置信息位的联合编码结果共同指示 SRS配置, 将该两条 DCI中的 SRS配置信息位拼接组合(拼接组合的先后顺序 可约定或指示), 而拼接组合出的多个比特的不同取值对应指示相应的 SRS配 置(例如拼接组合两条 DCI共包含的 3个比特的 SRS配置信息位,拼接组合出的 3个比特的不同取值最多可指示 8种不同的 SRS配置); 或者, 也可能是将生成 的两条 DCI中的其中一条(或多条) 的 SRS配置信息位所指示的 SRS配置 (而 剩余 DCI的 SRS配置信息位作无效设置, 或作为共同指示的 SRS配置是否有效 的参考条件), 作为生成的两条 DCI的 SRS配置信息位共同指示的 SRS配置。 但 无论选择那种联合指示方式, 由于是利用两条 DCI的 SRS配置信息位来共同指 示, 故而可协调统一两条 DCI的 SRS配置信息位以指示出一个唯一确定的 SRS 配置(可能是有效的, 也可能是无效的), 双方按照约定的映射对应关系, 最 终可获得一个确定的指示结果, 不会造成配置的混乱。
举例来说, 无线接入设备可生成两条具有不同指示优先级的 DCI, 通过该 两条 DCI中的最高指示优先级的 DCI的 SRS配置信息位指示 SRS配置,即将该两 条具有不同指示优先级 DCI中最高指示优先级的 DCI的 SRS配置信息位所指示 的 SRS配置, 作为该两条具有不同指示优先级的 DCI的 SRS配置信息位共同指 示的 SRS配置, 而该两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配 置信息位可视为无效。 在此应用场景下, 若终端接收到的两条 DCI具有不同的 指示优先级; 则终端可比较该至少两条 DCI的指示优先级; 将比较出的该至少 两条 DCI中最高指示优先级的 DCI的 SRS配置信息位所指示的 SRS配置,确定为 该至少两条 DCI的 SRS配置信息位共同指示的 SRS配置。
此外,当上述两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置 信息位, 与该最高指示优先级的 DCI的 SRS配置信息位指示同样的 SRS配置时, 则该同样的 SRS配置被作为上述两条 DCI中的 SRS配置信息位共同指示的 SRS 配置; 当该两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置信息 位, 与该最高指示优先级的 DCI的 SRS配置信息位指示不同的 SRS配置, 该两 条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备可生成两条不同指示优先级的 DCI, 其中, 若该两 条具有不同指示优先级的 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS 配置信息位设置为无效状态(例如为 off状态或其它约定的无效状态), 即为指 示不进行 SRS配置的状态, 则最高指示优先级的 DCI的 SRS配置信息位所指示 的 SRS配置, 可作为该两条具有不同指示优先级的 DCI的 SRS配置信息位共同 指示的 SRS配置; 当该两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS 配置信息位也指示进行 SRS配置时, 则该两条 DCI中的 SRS配置信息位共同指 示无效的 SRS配置。
又例如, 无线接入设备可生成两条相同或不同格式的 DCI, 其中, 当该两 条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部分 DCI的 SRS配置信息位为无效状态 ), 则该一条 DCI的 SRS配置信息位指示的 SRS配置 被作为上述两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 当该两条 DCI 的 SRS配置信息位都指示进行 SRS配置时,则该两条 DCI中的 SRS配置信息位共 同指示无效的 SRS配置。
又例如, 无线接入设备可生成两条相同或不同格式的 DCI, 其中, 当该两 条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部分 DCI的 SRS配置信息位为无效状态), 则该一条 DCI的 SRS配置信息位指示的 SRS配置 被作为上述两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当上述两条 DCI 的 SRS配置信息位均指示同样的 SRS配置时, 则该同样的 SRS配置被作为上述 两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 当该两条 DCI的 SRS配置信 息位指示不同的 SRS配置时, 则该两条 DCI中的 SRS配置信息位共同指示无效 的 SRS配置。
又例如, 无线接入设备可生成两条相同或不同格式的 DCI, 其中, 若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS 配置信息位所能够指示的 SRS配置中的其中一种 SRS配置,则,当该另一条 DCI 的 SRS配置信息位与该一条 DCI的 SRS配置信息位指示同样的 SRS配置时,该同 样的 SRS配置被作为上述两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 该另一条 DCI的 SRS配置信息与该一条 DCI的 SRS配置信息位指示不同的 SRS 配置时, 该两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置; 若两条 DCI 中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置 信息位所不能够指示的一种 SRS配置, 则当该另一条 DCI的 SRS配置信息位指 示进行 SRS配置时, 则上述两条 DCI中的 SRS配置信息位共同指示无效的 SRS 配置; 当该另一条 DCI的 SRS配置信息位设置为无效状态时,则该其中一条 DCI 的 SRS配置信息位指示的 SRS配置可作为该两条 DCI中的 SRS配置信息位共同 指示的 SRS配置。
而终端则可按照与之对应的映射对应关系, 确定出两条 DCI中的 SRS配置 信息位共同指示的 SRS配置。
可以理解, 在实际应用中, 不限于上述举例出的利用两条 DCI的 SRS配置 信息位共同指示 SRS配置的方式。
204、 终端按照确定出的 SRS配置, 向无线接入设备发送 SRS。
无线接入设备可接收终端发送的 SRS, 根据接收的 SRS对其和该终端之间 当前无线信道的信道质量等进行测量。 为便于理解和实施, 下面通过几个具体实例, 对本发明实施例中多个 DCI 中的 SRS配置信息位的联合编码方式进行举例说明。
举例来说, 假设有三种格式(format ) 的 DCI具有 SRS配置信息位 (即具 有触发 SRS的能力), 分别称之为: format0、 format4和 formatla, 其中, format4 的 DCI中有 2bit的 SRS配置信息位, formatO和 formatla的 DCI中有 lbit的 SRS配置 信息位。
其中, 若单独用 format4的 DCI触发, 假设其 SRS配置信息位的取值状态与 SRS配置的映射对应关系如表 1所示:
表 1
取值状态 配置
00 Off 01 SRS配置 1
10 SRS配置 2
11 SRS配置 3
其中, 若单独用 foraiatO的 DCI触发, 假设其 SRS配置信息位的取值状态与 SRS配置的映射对应关系如表 2所示:
表 2
Figure imgf000017_0001
其中,若单独用 formatla的 DCI触发,假设其 SRS配置信息位的取值状态与 SRS配置的映射对应关系如表 3所示:
表 3
Figure imgf000017_0002
需要说明的是, 此处提及的几种 SRS配置中的其中多种(如两种)可以是 相同的 SRS配置, 或者也可以是几种互不相同的 SRS配置, 例如, SRS配置 5可 以指示与表 1中的 SRS配置 1-3中某一种 SRS配置相同, 或者也可以是与 SRS配 置 1-3都不相同的配置。
需要说明的是, 此处所指的 SRS配置指一组 SRS参数的具体设置, 例如其 它 SRS参数由无线接入设备用高层信令配置好, 而只有 comb, CS等 SRS参数需 要在物理层进行配置, 那么, 上述 SRS配置 1可指(combO, CS0 ), 配置 2可以 指 ( combl , CS4 ), 以此类推。
在一种应用场景下,假设无线接入设备将 format4和 formatla, 或, FormatO 和 formatla这两种格式(format )的 DCI放在同一个子帧发送给同一个终端。 此 时, 对于非周期 SRS的触发, 终端需要结合同时接收到的多条 DCI, 共同决定 SRS配置。
实例 (一) 例如, 如果 format la和 format4的 DCI在同一个子帧发送, 收发双方可按下 面的方式进行处理。 无线接入设备对 Format la的 DCI中的 Ibit与 Format 4的 DCI 中的 2bit采用联合编码, 编码与 SRS配置的映射关系可如表 4所示:
表 4
Figure imgf000018_0001
在接收端, 终端解析出两条 DCI, 然后结合两条 DCI的 SRS配置信息位的 取值确定对应的 SRS配置。 例如, 终端解析出 format4的 DCI的 SRS配置信息位 携带信息为" 10", 而 formatla的 DCI的 SRS配置信息位上携带信息为" Γ, 则终 端确定出无线接入设备指示的 SRS配置为 SRS配置 7, 相应的, 终端可按照 SRS 配置 7, 向无线接入设备发送 SRS。
由于其它 SRS配置参数事先通过高层信令配置好,那么 UE可以结合事先获 得的 SRS配置与根据两条 DCI确定的 SRS配置, 发送 SRS。
类似的, 若 formatO与 &0!^ 1&的0( 1在同一个子帧下发给同一终端, 无线 接入设备对 FormatO的 DCI中的 Ibit与 Format 1 a的 DCI中的 Ibit采用联合编码,编 码与 SRS配置的映射关系可如表 5所示:
表 5
Format 0状态 Format la状态 配置
0 0 Off
0 1 配置 5
1 0 配置 4 新配置 (配置 6 )
终端可预置表 4和表 5, 例如, 终端解析出 formatO的 DCI的 SRS配置信息位 携带信息为" Γ, 而 formatla的 DCI的 SRS配置信息位上携带信息为" 1", 则终端 确定出无线接入设备指示的 SRS配置为 SRS配置 6, 相应的, 终端可按照 SRS配 置 6, 向无线接入设备发送 SRS。
可以发现, 基于例如表 4或表 5的不同格式的 DCI的 SRS配置信息位的联合 编码机制, 使得在一个子帧, 总共可用于指示 SRS配置的 bit数增加了, 无线接 入设备可以挑选更合理的配置, 优化 SRS传输。
在实际应用中, 出于检测可靠性的考虑, 表 5和表 6中的某些 SRS配置可以 是一样的(例如 SRS配置 6和 SRS配置 4可以是一样的配置), 而某些 SRS配置可 以是设置成无效配置。
实例 (二)
在一种应用场景下, 如果多种格式 format的 DCI放在同一个子帧下发给同 一终端, 可以约定好各种格式 format的指示优先级, 当然, 其中有一个 format 为最高指示优先级, 终端如果从同一子帧接收到至少两种格式的 DCI时, 则终 端在比较各种格式的 DCI的指示优先级后, 按照最高指示优先级的 Format的 DCI中的 SRS配置信息位的指示进行配置。 当然, 这种按照从至少两种格式的 DCI中选出的最高指示优先级的 format的 DCI来进行 SRS配置方式,也可看作是 同一子帧的至少两种格式的 DCI的 SRS配置信息位通过联合编码指示 SRS配置 的一种特殊方式。
例如, 假设 Format4与 formatla的 DCI可能在一个子帧下发, 那么假设约定
Format4是高指示优先级的 Format , 无线接入设备单独用 format4的 DCI进行触 发的映射关系仍可如表 1所示, 无线接入设备单独用 formatla的 DCI指示 SRS配 置的映射关系仍可如表 3所示。
那么,如果无线接入设备在一个子帧发送 format4与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 6所示:
表 6
Figure imgf000019_0001
00 0 Off
00 1 Off
01 0 配置 1
01 1 配置 1
10 0 配置 2
10 1 配置 2
11 0 配置 3
11 1 配置 3
这样, 终端在从同一子帧接收到 format4与 formatla的 DCI后, 就仅按照 format4的 DCI的指示进行 SRS配置, 而不考虑 formatla的 DCI的 SRS配置信息位 的具体取值。 如此, 相对于表 4或表 5的指示方式而言, 无线接入设备可以指示 的 SRS配置类型变少了, 但是由于 SRS配置是按照最高指示优先级( format4 ) 的 DCI的指示进行的, 所以即使 formatla没有检测到, 也不影响最终的配置。
类似的, 假设 formatO与 formatla的 DCI可能在一个子帧下发, 那么假设约 定 formatO是高指示优先级的 Format,无线接入设备单独用 formatO的 DCI进行触 发的映射关系仍可如表 2所示,无线接入设备单独用 formatla的 DCI进行触发的 映射关系仍可如表 3所示。
那么,如果无线接入设备在一个子帧发送 formatO与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 7所示:
表 7
Figure imgf000020_0001
为进一步降低错误发生几率,无线接入设备在同一子帧下发多条不同格式 的 DCI时, 亦可将除最高指示优先级的 format以外的其它 format的 DCI的 SRS配 置信息位设置为" off "状态, 只利用最高指示优先级的 format的 DCI来指示具体 的 SRS配置。 此场景下, 表 6和表 7可以改造为下面的表 8和表 9。
例如,如果无线接入设备在一个子帧发送 format4与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 8所示:
表 8
Figure imgf000021_0001
例如,如果无线接入设备在一个子帧发送 formatO与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 9所示:
表 9
Figure imgf000021_0002
在此场景下, 若终端从一个子帧接收到多种 format的 DCI, 且检测出较低 指示优先级的 format的 DCI的 SRS配置信息位不是" off "状态, 终端此时可判断 接收出错, 而暂不向无线接入设备发射 SRS。 如此, 当其它非最高指示优先级 的 format为非 off状态时 (表明接收存在错误), 终端会以配置错误而不会发送 SRS, 也就可尽量避免按照错误的 SRS配置发送 SRS, 造成不必要的干扰。
为进一步降低出错几率, 如果低指示优先级的 Format可与高指示优先级 Format的 DCI指示相同的 SRS配置, 那么当两条 format的 DCI都指示为这种配置 时, 也可表示为共同指示这种 SRS配置(此时不要求低指示优先级的 Format的 DCI的 SRS配置信息位设为 off状态)。 这样的好处是, 在各种指示优先级的 Format的 DCI指示相同 SRS配置的情况下,只要终端正确解调出其中一个 format 的 DCI, 就可按照正确的配置传输 SRS。
例如, 单独用 formatla的 DCI指示 SRS配置时, 映射表可如表 3所示, 且配 置 5与配置 1 (表 1 )、 配置 4 (表 2 )可指示相同的 SRS配置。 此场景下, 表 8和 表 9可以改造为下面的表 10和表 11。
那么,如果无线接入设备在一个子帧发送 format4与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 10所示:
表 10
Figure imgf000022_0001
那么,如果无线接入设备在一个子帧发送 formatO与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 11所示:
表 11
Figure imgf000022_0002
终端可预置表 6和表 7、 或表 8和表 9, 或表 10和表 11。 例如, 终端解析出两 条 DCI的 SRS配置信息位后, 根据映射表中的对应关系, 确定出无线接入设备 指示的 SRS配置, 终端可按照该 SRS配置, 向无线接入设备发送 SRS。
实例 (三)
如果两条 format的 DCI可能在同一子帧下发给同一终端, 那么无线接入设 备可以使用其中任何一个来指示 SRS配置, 而另外的 format的 DCI设置为 off状 态, 表示不用来指示 SRS配置。 那么例如两条 format的 DCI的都指示进行某种 SRS配置时, 表示指示错误, 反之, 表示指示正确。
那么,如果无线接入设备在一个子帧发送 format4与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 12所示:
表 12
Figure imgf000023_0001
那么,如果无线接入设备在一个子帧发送 formatO与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 13所示:
表 13
Figure imgf000023_0002
为进一步降低出错几率, 如果在同一子帧下发的不同格式的 format的 DCI 指示相同的 SRS配置, 那么两条 format的 DCI都指示为这种配置时, 也可表示 为共同指示这种 SRS配置 (此时不要求其中一个的 Format的 DCI的 SRS配置信 息位设为 off状态)。 这样的好处是, 在不同格式的 Format的 DCI指示相同 SRS 配置的情况下, 只要终端正确解调出其中一个 format的 DCI就会按照正确的配 置传输 SRS。
例如, 单独用 formatla指示 SRS配置时, 映射表为表 3所示, 且配置 5与配 置 1 (表 1 ), 配置 4 (表 2 )其实是指示相同的配置, 那么表 12和表 13可以改造 为下面的表 14和表 15。
例如,如果无线接入设备在一个子帧发送 format4与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 14所示:
表 14
Figure imgf000024_0001
例如,如果无线接入设备在一个子帧发送 formatO与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 15所示:
表 15
Format 0状态 Format la状态 配置
0 0 Off
0 1 配置 1(配置 4, 配置 5)
1 0 配置 1(配置 4, 配置 5)
1 1 配置 1(配置 4, 配置 5) 为进一步降低出错几率, 若不同格式的 Format的 DCI可以指示相同 SRS配 置, 那么当两条 format的 DCI的都指示某种 SRS配置时, 才表示指示正确, 反 之, 表示指示错误。 此时, 表 14和表 15可改造为下面的表 16和表 17。
例如,如果无线接入设备在一个子帧发送 format4与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可表如 16所示:
表 16
Figure imgf000025_0001
那么,如果无线接入设备在一个子帧发送 formatO与 formatla的 DCI,则 SRS 配置信息位联合编码取值与 SRS配置映射关系可如表 17所示:
表 17
Figure imgf000025_0002
终端可预置表 12和表 13、 或表 14和表 15, 或表 16和表 17。 例如, 终端解析 出两条 DCI的 SRS配置信息位后, 根据映射表中的对应关系, 确定出无线接入 设备指示的 SRS配置, 终端可按照该 SRS配置, 向无线接入设备发送 SRS。
此外, 不同的 format的 DCI组合可以使用不同的联合编码指示方案。 例如 format4与 formala的 DCI在一个子帧下发时, 采用如表 8或表 10的指示方案, 而 formatO与 formatla同时下发时采用表 17的指示方案。
由上可见,本实施例中无线接入设备生成并在同一个子帧向终端发送至少 两条 DCI, 以利用该至少两条 DCI的 SRS配置信息位共同指示 SRS配置。 由于无 线接入设备是通过多条 DCI的 SRS配置信息位来共同指示 SRS配置, 因而有利 于协调多条 DCI的 SRS配置信息位以指示出一个唯一确定的 SRS配置, 可以提 高指示 SRS配置的准确性和灵活性。
进一步的, 本实施例提供的多种实施方式可灵活选择, 满足不同应用场景 的需求。
为便于更好的实施上述实施例的技术方案,本发明实施例还提供用于实现 上述技术方案的设备。 参见图 3, 本发明实施例提供的一种无线接入设备 300, 可包括: 生成模块 310和发送模块 320。
其中, 生成模块 310, 用于生成至少两条下行控制信令 DCI, 该至少两条 DCI中的每个 DCI包括测量参考信号 SRS配置信息位; 生成模块 310可以是处理 器;
发送模块 320, 用于在一个子帧向终端发送上述至少两条 DCI, 以通过上 述至少两条 DCI中的 SRS配置信息位共同指示 SRS配置; 发送模块 320可以是接 口。
在实际应用中,无线接入设备 300利用生成的至少两条 DCI的 SRS配置信息 位共同指示 SRS配置的方式是多种多样的, 例如, 可能是根据预置的联合编码 规则生成的至少两条 DCI , 通过该至少两条 DCI中的 SRS配置信息位的联合编 码结果共同指示 SRS配置,将该至少两条 DCI中的 SRS配置信息位拼接组合(拼 接组合的先后顺序可约定或指示), 拼接组合出的多个比特的不同取值对应指 示相应的 SRS配置 (例如拼接组合两条 DCI共包含的 3个比特的 SRS配置信息 位, 拼接组合出的 3个比特的不同取值最多可指示 8种不同的 SRS配置); 或者, 也可能是将生成的至少两条 DCI中的其中一条(或多条) 的 SRS配置信息位所 指示的 SRS配置 (而剩余 DCI的 SRS配置信息位作无效设置, 或, 作为共同指 示的 SRS配置是否有效的参考条件), 作为生成的至少两条 DCI的 SRS配置信息 位共同指示的 SRS配置。 但无论选择那种联合指示方式, 由于是利用至少两条 DCI的 SRS配置信息位共同指示,故而可协调统一至少两条 DCI的 SRS配置信息 位以指示出一个唯一确定的 SRS配置 (可能是有效的, 也可能是无效的), 双 方按照约定的映射对应关系, 最终可获得一个确定的指示结果, 不会造成配置 的混乱。
举例来说, 生成模块 310可生成至少两条具有不同指示优先级的 DCI, 其 中,通过该至少两条 DCI中的最高指示优先级的 DCI的 SRS配置信息位指示 SRS 配置, 即将该至少两条具有不同指示优先级 DCI中最高指示优先级的 DCI的 SRS配置信息位所指示的 SRS配置, 作为该至少两条具有不同指示优先级的 DCI的 SRS配置信息位共同指示的 SRS配置,而该至少两条 DCI中除最高指示优 先级的 DCI外的其它 DCI的 SRS配置信息位可视为无效。
此外,当上述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS 配置信息位, 与该最高指示优先级的 DCI的 SRS配置信息位指示同样的 SRS配 置时, 则该同样的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同 指示的 SRS配置; 当该至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI 的 SRS配置信息位, 与该最高指示优先级的 DCI的 SRS配置信息位指示不同的 SRS配置, 该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 生成模块 310可生成至少两条不同指示优先级的 DCI, 其中, 若 该至少两条具有不同指示优先级的 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位设置为无效状态 (例如为 off状态或其它约定的无效状 态), 即为指示不进行 SRS配置的状态, 则最高指示优先级的 DCI的 SRS配置信 息位所指示的 SRS配置, 可作为该至少两条具有不同指示优先级的 DCI的 SRS 配置信息位共同指示的 SRS配置; 当该至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位也指示进行 SRS配置时, 则该至少两条 DCI 中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 生成模块 310可生成至少两条相同或不同格式的 DCI, 其中, 当 该至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部 分 DCI的 SRS配置信息位为无效状态), 则该一条 DCI的 SRS配置信息位指示的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 该至少两条 DCI的 SRS配置信息位都指示进行 SRS配置时, 则该至少两条 DCI 中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 生成模块 310可生成至少两条相同或不同格式的 DCI, 其中, 当 该至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部 分 DCI的 SRS配置信息位为无效状态 ), 则该一条 DCI的 SRS配置信息位指示的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 上述至少两条 DCI的 SRS配置信息位均指示同样的 SRS配置时,则该同样的 SRS 配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 当该 至少两条 DCI的 SRS配置信息位指示不同的 SRS配置时,则该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 生成模块 310可生成两条相同或不同格式的 DCI, 其中, 若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS 配置信息位所能够指示的 SRS配置中的其中一种 SRS配置,则,当该另一条 DCI 的 SRS配置信息位与该一条 DCI的 SRS配置信息位指示同样的 SRS配置时,该同 样的 SRS配置被作为上述两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 该另一条 DCI的 SRS配置信息与该一条 DCI的 SRS配置信息位指示不同的 SRS 配置时, 该两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置; 若两条 DCI 中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置 信息位所不能够指示的一种 SRS配置, 则当该另一条 DCI的 SRS配置信息位指 示进行 SRS配置时, 则上述两条 DCI中的 SRS配置信息位共同指示无效的 SRS 配置; 当该另一条 DCI的 SRS配置信息位设置为无效状态时,则该其中一条 DCI 的 SRS配置信息位指示的 SRS配置作为该两条 DCI中的 SRS配置信息位共同指 示的 SRS配置。
而终端则可按照与之对应的映射对应关系, 确定出两条 DCI中的 SRS配置 信息位共同指示的 SRS配置。
可以理解, 本实施例的无线接入设备 300可如上述方法实施例中的无线接 模块的功能可以根据上述方法实施例中的方法具体实现,其具体实现过程可参 照上述实施例中的相关描述, 此处不再赘述。
由上可见, 本实施例中无线接入设备 300生成并在同一个子帧向终端发送 至少两条 DCI, 以利用该至少两条 DCI的 SRS配置信息位共同指示 SRS配置。 由 于无线接入设备是通过多条 DCI的 SRS配置信息位来共同指示 SRS配置, 因而 有利于协调多条 DCI的 SRS配置信息位以指示出一个唯一确定的 SRS配置, 可 以提高指示 SRS配置的准确性和灵活性。 参见图 4, 本发明实施例的一种终端设备 400, 可包括: 接收模块 410、 确 定模块 420和发送模块 430。
其中, 接收模块 410, 用于接收无线接入设备在一个子帧下发的至少两条
DCI, 该至少两条 DCI中的每个 DCI包括测量参考信号 SRS配置信息位; 接收模 块 410可以是接口;
确定模块 420, 用于确定接收模块 410接收的至少两条 DCI的 SRS配置信息 位共同指示的 SRS配置; 确定模块 420可以是处理器;
发送模块 430, 用于按照确定模块 420确定出的 SRS配置, 向上述无线接入 设备发送 SRS , 发送模块 430可以是接口。
在一种应用场景下, 若接收模块 410接收的至少两条 DCI具有不同的指示 优先级; 确定模块 420可包括: 比较子模块和确定子模块(图 4中未示出)。
比较子模块, 用于比较接收模块 410接收的至少两条 DCI的指示优先级; 确定子模块, 用于将比较子模块比较出的上述至少两条 DCI中最高指示优 先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为上述至少两条 DCI的 SRS配置信息位共同指示的 SRS配置;或者,在上述接收模块接收至少两条 DCI 中除具有最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位设置为无效状 态时, 将上述比较子模块比较出的上述至少两条 DCI中最高指示优先级的 DCI 的 SRS配置信息位所指示的 SRS配置,确定为上述至少两条 DCI的 SRS配置信息 位通过所共同指示的 SRS配置。
在另一种应用场景下, 接收模块 410若接收到至少两条 DCI具有不同的指 示优先级; 则确定模块 420可比较该至少两条 DCI的指示优先级; 若该至少两 条 DCI中除具有最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位设置为 无效状态(例如 off状态或其它约定的无效状态 ),则将比较出的该至少两条 DCI 中最高指示优先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为该至少 两条 DCI的 SRS配置信息位共同指示的 SRS配置。此外, 若该至少两条 DCI中除 具有最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位设置为非无效状态 (即指示进行 SRS配置的状态 ), 则确定模块 420可进一步判断该最高指示优先 级的 DCI,是否与除具有最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位 指示同样的 SRS配置, 若是, 则确定该同样的 SRS配置为上述至少两条 DCI中 的 SRS配置信息位共同指示的 SRS配置; 若否(即该至少两条 DCI的 SRS配置信 息位指示不同的 SRS配置 ) , 则确定该至少两条 DCI中的 SRS配置信息位共同指 示无效的 SRS配置。
在另一种应用场景下, 接收模块 410若接收到至少两条相同或不同格式的 DCI, 则确定模块 420可判断该至少两条 DCI中是否仅有一条 DCI的 SRS配置信 息位指示进行 SRS配置(即其余部分 DCI的 SRS配置信息位为无效状态 ),若是, 则将该仅有一条 DCI的 SRS配置信息位说指示的 SRS配置,确定该至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置; 若否(即该至少两条 DCI的 SRS配置 信息位都指示进行 SRS配置时 ), 则确定该至少两条 DCI中的 SRS配置信息位共 同指示无效的 SRS配置。
在另一种应用场景下, 接收模块 410若接收到至少两条相同或不同格式的 DCI, 则确定模块 420可判断该至少两条 DCI中是否仅有一条 DCI的 SRS配置信 息位指示进行 SRS配置 (其余部分 DCI的 SRS配置信息位为无效状态), 若是, 则将该仅有一条 DCI的 SRS配置信息位所指示的 SRS配置,确定该至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置; 若否(即该至少两条 DCI的 SRS配置 信息位都指示进行 SRS配置时 ), 则确定模块 420可进一步判断该至少两条 DCI 的 SRS配置信息位所指示同样的 SRS配置, 若是, 则确定该同样的 SRS配置为 上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 若否 (即该至少 两条 DCI的 SRS配置信息位指示不同的 SRS配置 ), 则确定该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。 在另一种应用场景下, 接收模块 410若接收到两条相同或不同格式的 DCI, 且该两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置信息位所能够指示的 SRS配置中的其中一种 SRS配置,则确定模 块 420可判断当该另一条 DCI的 SRS配置信息位, 是否与该一条 DCI的 SRS配置 信息位指示同样的 SRS配置, 若是, 则确定该同样的 SRS配置为上述两条 DCI 中的 SRS配置信息位共同指示的 SRS配置; 若否(即该另一条 DCI的 SRS配置信 息与该一条 DCI的 SRS配置信息位指示不同的 SRS配置 ), 则确定该两条 DCI中 的 SRS配置信息位共同指示无效的 SRS配置。 此外, 若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置信息位所不能 够指示的一种 SRS配置, 则确定模块 420可进一步判断该另一条 DCI的 SRS配置 信息位是否也指示进行 SRS配置, 若是, 则确定上述两条 DCI中的 SRS配置信 息位共同指示无效的 SRS配置; 若否, 则将上述一条 DCI的 SRS配置信息位所 指示的 SRS配置, 确定该两条 DCI中的 SRS配置信息位共同指示的 SRS配置。
可以理解, 本实施例的终端设备 400可为如上述方法实施例中的终端, 其 可以根据上述方法实施例中的方法具体实现,其具体实现过程可参照上述实施 例中的相关描述, 此处不再赘述。
由上可见, 本实施例中无线接入设备生成并在同一个子帧向终端设备 400 发送至少两条 DCI , 以利用该至少两条 DCI的 SRS配置信息位共同指示 SRS配 置。 由于无线接入设备是通过多条 DCI的 SRS配置信息位来共同指示 SRS配置, 因而有利于协调多条 DCI的 SRS配置信息位以指示出一个唯一确定的 SRS配 置,终端设备 400可在确定出接收的至少两条 DCI的 SRS配置信息位共同指示的 SRS配置后, 按照确定出的 SRS配置, 向无线接入设备发送 SRS, 该方案可以 提高指示 SRS配置的准确性和灵活性。 参见图 5, 本发明实施例提供的一种通信系统, 可包括: 无线接入设备 510 和终端设备 520。
其中, 无线接入设备 500, 用于生成至少两条下行控制信令 DCI, 上述至 少两条 DCI中的每个 DCI包括测量参考信号 SRS配置信息位; 在一个子帧向终 端发送上述至少两条 DCI, 以通过上述至少两条 DCI中的 SRS配置信息位共同 指示 SRS配置。
终端设备 520 , 用于接收无线接入设备 510在一个子帧下发的至少两条 DCI, 上述至少两条 DCI中的每个 DCI包括测量参考信号 SRS配置信息位; 确定 上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;按照确定出的 SRS 配置, 向无线接入设备 510发送 SRS。
在实际应用中,无线接入设备 510利用生成的至少两条 DCI的 SRS配置信息 位共同指示 SRS配置的方式是多种多样的, 例如, 可能是根据预置的联合编码 规则生成的至少两条 DCI , 通过该至少两条 DCI中的 SRS配置信息位的联合编 码结果共同指示 SRS配置,将该至少两条 DCI中的 SRS配置信息位拼接组合(拼 接组合的先后顺序可约定或指示), 拼接组合出的多个比特的不同取值对应指 示相应的 SRS配置 (例如拼接组合两条 DCI共包含的 3个比特的 SRS配置信息 位, 拼接组合出的 3个比特的不同取值最多可指示 8种不同的 SRS配置); 或者, 也可能是将生成的至少两条 DCI中的其中一条(或多条) 的 SRS配置信息位所 指示的 SRS配置 (而剩余 DCI的 SRS配置信息位作无效设置, 或, 作为共同指 示的 SRS配置是否有效的参考条件 ), 作为生成的至少两条 DCI的 SRS配置信息 位共同指示的 SRS配置。 但无论选择那种联合指示方式, 由于是利用至少两条 DCI的 SRS配置信息位共同指示,故而可协调统一至少两条 DCI的 SRS配置信息 位以指示出一个唯一确定的 SRS配置 (可能是有效的, 也可能是无效的), 双 方按照约定的映射对应关系, 最终可获得一个确定的指示结果, 不会造成配置 的混乱。
举例来说, 无线接入设备 510可生成至少两条具有不同指示优先级的 DCI, 通过该至少两条 DCI中的最高指示优先级的 DCI的 SRS配置信息位指示 SRS配 置, 即将该至少两条具有不同指示优先级 DCI中最高指示优先级的 DCI的 SRS 配置信息位所指示的 SRS配置, 作为该至少两条具有不同指示优先级的 DCI的 SRS配置信息位共同指示的 SRS配置, 而该至少两条 DCI中除最高指示优先级 的 DCI外的其它 DCI的 SRS配置信息位可视为无效。
此外,当上述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS 配置信息位, 与该最高指示优先级的 DCI的 SRS配置信息位指示同样的 SRS配 置时, 则该同样的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同 指示的 SRS配置; 当该至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI 的 SRS配置信息位, 与该最高指示优先级的 DCI的 SRS配置信息位指示不同的 SRS配置, 该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备 510可生成至少两条不同指示优先级的 DCI, 若该 至少两条具有不同指示优先级的 DCI中除最高指示优先级的 DCI外的其它 DCI 的 SRS配置信息位设置为无效状态 (例如设置为 off状态或其它约定的无效状 态), 即为指示不进行 SRS配置的状态, 则最高指示优先级的 DCI的 SRS配置信 息位所指示的 SRS配置, 可作为该至少两条具有不同指示优先级的 DCI的 SRS 配置信息位共同指示的 SRS配置; 当该至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置信息位也指示进行 SRS配置时, 则该至少两条 DCI 中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备 510可生成至少两条相同或不同格式的 DCI, , 当该 至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部分 DCI的 SRS配置信息位为无效状态 ), 则该一条 DCI的 SRS配置信息位指示的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 该至少两条 DCI的 SRS配置信息位都指示进行 SRS配置时, 则该至少两条 DCI 中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备 510可生成至少两条相同或不同格式的 DCI, 当该 至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置时(其余部分 DCI的 SRS配置信息位为无效状态 ), 则该一条 DCI的 SRS配置信息位指示的 SRS配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;当 上述至少两条 DCI的 SRS配置信息位均指示同样的 SRS配置时,则该同样的 SRS 配置被作为上述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 当该 至少两条 DCI的 SRS配置信息位指示不同的 SRS配置时,则该至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
又例如, 无线接入设备 510可生成两条相同或不同格式的 DCI, 其中, 若 两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置信息位所能够指示的 SRS配置中的其中一种 SRS配置, 则, 当该另一 条 DCI的 SRS配置信息位与该一条 DCI的 SRS配置信息位指示同样的 SRS配置 时,该同样的 SRS配置被作为上述两条 DCI中的 SRS配置信息位共同指示的 SRS 配置;当该另一条 DCI的 SRS配置信息与该一条 DCI的 SRS配置信息位指示不同 的 SRS配置时,该两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置; 若两 条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置, 为另一条 DCI的 SRS配置信息位所不能够指示的一种 SRS配置,则当该另一条 DCI的 SRS配置信 息位指示进行 SRS配置时, 则上述两条 DCI中的 SRS配置信息位共同指示无效 的 SRS配置; 当该另一条 DCI的 SRS配置信息位设置为无效状态时, 则该其中 一条 DCI的 SRS配置信息位指示的 SRS配置作为该两条 DCI中的 SRS配置信息 位共同指示的 SRS配置。
而终端设备 520则可按照与之对应的映射对应关系, 确定出两条 DCI中的 SRS配置信息位共同指示的 SRS配置。
可以理解, 本实施例的无线接入设备 510可如上述方法实施例中的无线接 入设备, 终端设备 520可如上述方法实施例中的终端, 其可以用于配合实现上 述方法实施例中的全部技术方案,其各个功能模块的功能可以根据上述方法实 施例中的方法具体实现, 其具体实现过程可参照上述实施例中的相关描述, 此 处不再赘述。 本发明实施例还提供一种通信系统, 可包括:
无线接入设备 300和 /或终端设备 400。
需要说明的是, 对于前述的各方法实施例, 为了筒单描述, 故将其都表述 为一系列的动作组合,但是本领域技术人员应该知悉,本发明并不受所描述的 动作顺序的限制,因为依据本发明,某些步骤可以采用其它顺序或者同时进行。 其次, 本领域技术人员也应该知悉,说明书中所描述的实施例均属于优选实施 例, 所涉及的动作和模块并不一定是本发明所必须的。
在上述实施例中, 对各个实施例的描述都各有侧重, 某个实施例中没 有详述的部分, 可以参见其它实施例的相关描述。 综上,本发明实施例无线接入设备生成并在同一个子帧向终端发送至少两 条 DCI, 以利用该至少两条 DCI的 SRS配置信息位共同指示 SRS配置。 由于无线 接入设备是通过多条 DCI的 SRS配置信息位来共同指示 SRS配置, 因而有利于 协调多条 DCI的 SRS配置信息位以指示出一个唯一确定的 SRS配置, 可以提高 指示 SRS配置的准确性和灵活性。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于一计算机可读 存储介质中, 存储介质可以包括: 只读存储器、 随机存储器、 磁盘或光盘等。
以上对本发明实施例所提供的测量参考信号发送方法和配置指示方法及 设备和系统进行了详细介绍,本文中应用了具体个例对本发明的原理及实施方 式进行了阐述,以上实施例的说明只是用于帮助理解本发明的方法及其核心思 想; 同时, 对于本领域的一般技术人员, 依据本发明的思想, 在具体实施方式 及应用范围上均会有改变之处, 综上, 本说明书内容不应理解为对本发明的限 制。

Claims

权 利 要 求
1、 一种测量参考信号配置指示方法, 其特征在于, 包括:
生成至少两条下行控制信令 DCI , 所述至少两条 DCI中的每个 DCI包括测 量参考信号 SRS配置信息位;
在一个子帧向终端发送所述至少两条 DCI, 以通过所述至少两条 DCI中的
SRS配置信息位共同指示 SRS配置。
2、 根据权利要求 1所述的方法, 其特征在于, 所述通过所述至少两条 DCI 中的 SRS配置信息位共同指示 SRS配置, 包括:
通过所述至少两条 DCI中的 SRS配置信息位的联合编码结果共同指示 SRS 配置。
3、 根据权利要求 1所述的方法, 其特征在于, 所述通过所述至少两条 DCI 中的 SRS配置信息位共同指示 SRS配置, 包括:
通过所述至少两条 DCI中的最高指示优先级的 DCI的 SRS配置信息位指示 SRS配置, 其中, 所述至少两条 DCI具有不同指示优先级。
4、 根据权利要求 3所述的方法, 其特征在于, 所述通过所述至少两条 DCI 中的 SRS配置信息位共同指示 SRS配置, 还包括:
当所述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置 信息位也指示进行 SRS配置时, 所述至少两条 DCI中的 SRS配置信息位共同指 示无效的 SRS配置。
5、 根据权利要求 3所述的方法, 其特征在于, 所述通过至少两条 DCI中的
SRS配置信息位共同指示 SRS配置, 还包括:
当所述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置 信息位, 与所述最高指示优先级的 DCI的 SRS配置信息位指示同样的 SRS配置 时, 所述同样的 SRS配置被作为所述至少两条 DCI中的 SRS配置信息位共同指 示的 SRS配置;
当所述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置 信息位, 与所述最高指示优先级的 DCI的 SRS配置信息位指示不同的 SRS配置 时, 所述至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
6、 根据权利要求 1所述的方法, 其特征在于, 所述通过所述至少两条 DCI 中的 SRS配置信息位共同指示 SRS配置, 包括:
当所述至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置 时, 所述一条 DCI的 SRS配置信息位指示的 SRS配置被作为所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置;
当所述至少两条 DCI的 SRS配置信息位都指示进行 SRS配置时, 所述至少 两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
7、 根据权利要求 1所述的方法, 其特征在于, 所述通过所述至少两条 DCI 中的 SRS配置信息位共同指示 SRS配置, 包括:
当所述至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置 时, 所述一条 DCI的 SRS配置信息位指示的 SRS配置被作为所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置;
当所述至少两条 DCI的 SRS配置信息位均指示同样的 SRS配置时, 所述同 样的 SRS配置被作为所述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配 置;
当所述至少两条 DCI的 SRS配置信息位指示不同的 SRS配置时, 所述至少 两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
8、 根据权利要求 1所述的方法, 其特征在于,
所述至少两条 DCI为两条 DCI,所述通过所述至少两条 DCI中的 SRS配置信 息位共同指示 SRS配置, 包括:
若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置,为另一条 DCI的 SRS配置信息位所能够指示的 SRS配置中的其中一种 SRS配置,则, 当所 述另一条 DCI的 SRS配置信息位与所述一条 DCI的 SRS配置信息位指示同样的 SRS配置时,所述同样的 SRS配置被作为所述两条 DCI中的 SRS配置信息位共同 指示的 SRS配置; 当所述另一条 DCI的 SRS配置信息与所述一条 DCI的 SRS配置 信息位指示不同的 SRS配置时, 所述两条 DCI中的 SRS配置信息位共同指示无 效的 SRS配置;
若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置,为另一条 DCI的 SRS配置信息位所不能够指示的一种 SRS配置, 则当所述另一条 DCI的 SRS配置信息位指示进行 SRS配置时,所述两条 DCI中的 SRS配置信息位共同指 示无效的 SRS配置; 若所述另一条 DCI的 SRS配置信息位设置为无效状态, 则 所述其中一条 DCI的 SRS配置信息位指示的 SRS配置被作为所述两条 DCI中的 SRS配置信息位共同指示的 SRS配置。
9、 一种测量参考信号的发送方法, 其特征在于, 包括:
接收无线接入设备在一个子帧下发的至少两条 DCI , 所述至少两条 DCI中 的每个 DCI包括测量参考信号 SRS配置信息位;
确定所述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置; 按照确定出的 SRS配置, 向所述无线接入设备发送 SRS。
10、 根据权利要求 8所述的方法, 其特征在于,
所述至少两条 DCI具有不同的指示优先级; 所述确定所述至少两条 DCI中 的 SRS配置信息位共同指示的 SRS配置, 包括:
比较所述至少两条 DCI的指示优先级;
将比较出的所述至少两条 DCI中最高指示优先级的 DCI的 SRS配置信息位 所指示的 SRS配置, 确定为所述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置。
11、 根据权利要求 9所述的方法, 其特征在于,
所述至少两条 DCI具有不同的指示优先级; 所述确定所述至少两条 DCI的 SRS配置信息位共同指示的 SRS配置, 包括:
比较所述至少两条 DCI的指示优先级;
若所述至少两条 DCI中除具有最高指示优先级的 DCI外的其它 DCI的 SRS 配置信息位为无效状态, 则将比较出的所述至少两条 DCI中最高指示优先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为所述至少两条 DCI的 SRS配置 信息位共同指示的 SRS配置。
12、根据权利要求 9所述的方法, 其特征在于,所述确定所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置, 包括:
将所述至少两条 DCI中的 SRS配置信息位的联合编码结果所指示的 SRS配 置, 确定为所述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置。
13、根据权利要求 9所述的方法, 其特征在于,所述确定所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置, 包括:
当所述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置 信息位, 与所述最高指示优先级的 DCI的 SRS配置信息位指示同样的 SRS配置 时, 将所述同样的 SRS配置确定为所述至少两条 DCI中的 SRS配置信息位共同 指示的 SRS配置;
当所述至少两条 DCI中除最高指示优先级的 DCI外的其它 DCI的 SRS配置 信息位, 与所述最高指示优先级的 DCI的 SRS配置信息位指示不同的 SRS配置 时, 确定所述至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
14、根据权利要求 9所述的方法, 其特征在于,所述确定所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置, 包括:
当所述至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置 时,将所述一条 DCI的 SRS配置信息位指示的 SRS配置确定为所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置;
当所述至少两条 DCI的 SRS配置信息位都指示进行 SRS配置时, 确定所述 至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
15、根据权利要求 9所述的方法, 其特征在于,所述确定所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置, 包括:
当所述至少两条 DCI中仅有一条 DCI的 SRS配置信息位指示进行 SRS配置 时,将所述一条 DCI的 SRS配置信息位指示的 SRS配置确定为所述至少两条 DCI 中的 SRS配置信息位共同指示的 SRS配置;
当所述至少两条 DCI的 SRS配置信息位均指示同样的 SRS配置时, 将所述 同样的 SRS配置确定作为所述至少两条 DCI中的 SRS配置信息位共同指示的 SRS配置;
当所述至少两条 DCI的 SRS配置信息位指示不同的 SRS配置时, 确定所述 至少两条 DCI中的 SRS配置信息位共同指示无效的 SRS配置。
16、 根据权利要求 9所述的方法, 其特征在于, 所述至少两条 DCI为两条 DCI,所述确定所述至少两条 DCI中的 SRS配置信 息位共同指示的 SRS配置, 包括:
若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置,为另一条 DCI的 SRS配置信息位所能够指示的 SRS配置中的其中一种 SRS配置,则, 当所 述另一条 DCI的 SRS配置信息位与所述一条 DCI的 SRS配置信息位指示同样的 SRS配置时,将所述同样的 SRS配置确定作为所述两条 DCI中的 SRS配置信息位 共同指示的 SRS配置; 当所述另一条 DCI的 SRS配置信息与所述一条 DCI的 SRS 配置信息位指示不同的 SRS配置时, 确定所述两条 DCI中的 SRS配置信息位共 同指示无效的 SRS配置;
若两条 DCI中的其中一条 DCI的 SRS配置信息位指示的 SRS配置,为另一条
DCI的 SRS配置信息位所不能够指示的一种 SRS配置, 则当所述另一条 DCI的 SRS配置信息位指示进行 SRS配置时,确定所述两条 DCI中的 SRS配置信息位共 同指示无效的 SRS配置; 当所述另一条 DCI的 SRS配置信息位设置为无效状态 时, 确定所述其中一条 DCI的 SRS配置信息位指示的 SRS配置为所述两条 DCI 中的 SRS配置信息位共同指示的 SRS配置。
17、 一种无线接入设备, 其特征在于, 包括:
生成模块, 用于生成至少两条 DCI, 所述至少两条 DCI中的每个 DCI包括 测量参考信号 SRS配置信息位;
发送模块, 用于在一个子帧向终端发送所述至少两条 DCI, 以通过所述至 少两条 DCI中的 SRS配置信息位共同指示 SRS配置。
18、 一种终端设备, 其特征在于, 包括:
接收模块, 用于接收无线接入设备在一个子帧下发的至少两条 DCI, 所述 至少两条 DCI中的每个 DCI包括测量参考信号 SRS配置信息位;
确定模块, 用于确定所述接收模块接收的至少两条 DCI中的 SRS配置信息 位共同指示的 SRS配置;
发送模块, 用于按照所述确定模块确定出的 SRS配置, 向所述无线接入设 备发送 SRS。
19、 根据权利要求 18所述的终端设备, 其特征在于, 所述接收模块接收的 至少两条 DCI具有不同的指示优先级;
所述确定模块, 包括:
比较子模块, 用于比较所述接收模块接收的至少两条 DCI的指示优先级; 确定子模块, 用于将所述比较子模块比较出的所述至少两条 DCI 中最高 指示优先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为所述至少两 条 DCI的 SRS配置信息位共同指示的 SRS配置; 或者, 在所述接收模块接收 至少两条 DCI中除具有最高指示优先级的 DCI外的其它 DCI的 SRS配置信息 位设置为无效状态时, 将所述比较子模块比较出的所述至少两条 DCI 中最高 指示优先级的 DCI的 SRS配置信息位所指示的 SRS配置, 确定为所述至少两 条 DCI的 SRS配置信息位共同指示的 SRS配置。
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