WO2022166622A1 - Srs资源配置方法、装置、设备及可读存储介质 - Google Patents

Srs资源配置方法、装置、设备及可读存储介质 Download PDF

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Publication number
WO2022166622A1
WO2022166622A1 PCT/CN2022/073266 CN2022073266W WO2022166622A1 WO 2022166622 A1 WO2022166622 A1 WO 2022166622A1 CN 2022073266 W CN2022073266 W CN 2022073266W WO 2022166622 A1 WO2022166622 A1 WO 2022166622A1
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WIPO (PCT)
Prior art keywords
srs resource
dci
base station
resource sets
target
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PCT/CN2022/073266
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English (en)
French (fr)
Inventor
曹昱华
李岩
王飞
郑毅
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***通信有限公司研究院
***通信集团有限公司
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Publication of WO2022166622A1 publication Critical patent/WO2022166622A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management

Definitions

  • Embodiments of the present application relate to the field of communications technologies, and in particular, to a sounding reference signal (Sounding Reference Signal, SRS) resource configuration method, apparatus, device, and readable storage medium.
  • SRS Sounding Reference Signal
  • the figure illustrates a codebook-based uplink transmission process.
  • the terminal When the Physical Uplink Shared Channel (PUSCH) is configured as a codebook-based transmission mode, the terminal first needs to send a codebook-based uplink transmission.
  • the usage of the SRS that is, the sounding reference signal set (SRS resource set), is configured as a codebook.
  • the new radio interface allows the base station to configure at most one SRS resource set for the UE for uplink channel estimation, and the SRS resource set can be configured with a maximum of two sounding reference signal resources ( SRS resources).
  • the base station performs uplink channel detection according to the SRS sent by the UE, and determines the SRS resource indicator (SRS resource indicator, SRI), the number of uplink transmission layers (rank indication (RI)), and the transmission precoding matrix indicator (transmission) corresponding to the uplink transmission.
  • SRS resource indicator SRS resource indicator
  • RI the number of uplink transmission layers
  • RI the number of uplink transmission layers
  • transmission precoding matrix indicator transmission
  • precoding matrix indicator TPMI
  • modulation and coding strategy Modulation and Coding Scheme, MCS
  • DCI Downlink Control Information
  • Table 1 SRI indication for codebook based PUSCH transmission
  • the figure illustrates a non-codebook-based uplink transmission process.
  • the main difference between the non-codebook-based uplink transmission scheme and the codebook-based uplink transmission scheme is that its precoding is no longer limited to a limited set of candidates based on a fixed codebook. .
  • the terminal can use the SRI to determine the precoding and the number of transmission layers of the data.
  • the terminal when the PUSCH is configured as a non-codebook-based transmission mode, the terminal first needs to send an SRS for non-codebook-based uplink transmission, that is, the usage of the SRS resource set is configured as a non-codebook (non-codebook) .
  • the base station can configure a maximum of one SRS resource set for the terminal, including 1 to 4 SRS resources, and each SRS resource is a single port.
  • the terminal determines the precoding of the SRS based on the downlink channel estimation, and sends the precoded SRS.
  • the base station indicates the SRI through the DCI, where the SRI may indicate one or more SRS resources.
  • the number of SRS resources indicated in the SRI is the RI for PUSCH transmission
  • the precoding used for the SRS resources indicated in the SRI is the TPMI for PUSCH transmission
  • the transmission layer of the PUSCH corresponds to the SRS resources indicated by the SRI.
  • the base station can only configure at most one SRS resource set for the terminal for uplink transmission, which greatly limits the flexibility of the SRS resource set.
  • the embodiments of the present application provide an SRS resource configuration method, apparatus, device, and readable storage medium, so as to solve the problem of poor flexibility of the SRS resource set.
  • a first aspect provides an SRS resource configuration method, executed by a terminal, including:
  • one or more target SRS resource sets are indicated, and the target SRS resource sets are a subset of multiple SRS resource sets configured by the base station for uplink transmission.
  • the target SRS resource set is an SRS resource set in a subset of a set composed of multiple SRS resource sets configured by the base station for uplink transmission.
  • the method further includes:
  • the method further includes:
  • the SRS resource associated with the SRI in the DCI is the SRI before the receiving time of the DCI the most recent periodic SRS resource indicated;
  • the SRS resource associated with the SRI in the DCI is the closest SRI indicated by the SRI before the reference point aperiodic SRS resources, wherein the reference point is located before the DCI reception time;
  • the SRS resource associated with the SRI in the DCI is before the receiving time of the DCI
  • the most recent semi-persistent periodic SRS resource indicated by the SRI of the SRI, the semi-persistent periodic SRS resource is not sent for the first time after the MAC CE is activated.
  • a method for configuring SRS resources executed by a base station, including:
  • the target SRS resource set is an SRS resource set in a subset of a set composed of multiple SRS resource sets configured by the base station for uplink transmission.
  • the method further includes: configuring multiple SRS resource sets for uplink transmission.
  • an apparatus for configuring SRS resources including:
  • a first receiving module for receiving DCI
  • a determination module configured to indicate one or more target SRS resource sets according to one or more bits in the DCI, where the target SRS resource set is a subset of multiple SRS resource sets configured by the base station for uplink transmission set.
  • an apparatus for configuring SRS resources including:
  • the second sending module is configured to send DCI, where one or more bits in the DCI are used to indicate to the terminal one or more target SRS resource sets, where the target SRS resource sets are multiple configured by the base station for uplink transmission A subset of the SRS resource set.
  • a terminal including: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor as described in the first aspect steps of the method described.
  • a base station comprising: a processor, a memory, and a program stored on the memory and executable on the processor, the program being executed by the processor to implement the second aspect steps of the method described.
  • a readable storage medium is provided, and a program is stored on the readable storage medium, and when the program is executed by a processor, the steps including the method according to the first aspect or the second aspect are implemented.
  • the flexibility of the SRS resource set is improved by configuring multiple SRS resource sets with different time domain behaviors for the terminal.
  • 1 is a schematic diagram of codebook-based uplink transmission
  • Fig. 2 is a schematic diagram of uplink transmission based on non-codebook
  • FIG. 3 is a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied;
  • FIG. 5 is the second flowchart of the SRS resource configuration method according to the embodiment of the present application.
  • FIG. 6 is one of the schematic diagrams of the SRS resource configuration apparatus according to the embodiment of the present application.
  • FIG. 8 is a schematic diagram of a terminal according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a base station according to an embodiment of the present application.
  • FIG. 10 is one of the schematic diagrams of determining target SRS resources based on DCI according to an embodiment of the present application
  • FIG. 11 is the second schematic diagram of determining target SRS resources based on DCI according to an embodiment of the present application
  • FIG. 12 is a third schematic diagram of determining target SRS resources based on DCI according to an embodiment of the present application.
  • words such as “exemplary” or “for example” are used to represent examples, illustrations or illustrations. Any embodiments or designs described in the embodiments of the present application as “exemplary” or “such as” should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as “exemplary” or “such as” is intended to present the related concepts in a specific manner.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.
  • FIG. 3 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 31 and a network-side device 32 .
  • the terminal 31 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 31 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), PDA, Netbook, Ultra-mobile Personal Computer (UMPC), Mobile Internet Device (MID), Wearable Device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: bracelets, headphones, glasses, etc.
  • PDA Personal Digital Assistant
  • MID Mobile Internet Device
  • MID Wearable Device
  • VUE vehicle-mounted device
  • PUE pedestrian terminal
  • wearable devices include: bracelets, headphones, glasses, etc.
  • the network side device 32 may be a base station or a core network side device, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node , Transmitting Receiving Point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to the specified technical vocabulary. It should be noted that in the embodiments of this application Only the base station in the NR system is taken as an example, but the specific type of the base station is not limited.
  • the embodiment of the present application provides an SRS resource configuration method, which can be applied to a single TRP scenario or a multi-TRP scenario.
  • a multi-TRP scenario one TRP corresponds to one base station.
  • multiple base stations jointly configure multiple SRS resource sets for uplink transmission for the terminal through high-level signaling, and each base station sends the configuration of its own SRS resource set to the terminal. .
  • the terminal After receiving the configuration of the SRS resource set sent by each base station, the terminal sends the corresponding SRS resource set to each base station respectively.
  • Each base station negotiates to determine the base station that delivers the DCI to the terminal.
  • the base station that delivers the DCI to the terminal After the base station that delivers the DCI to the terminal is determined, other base stations send the information of the SRS resource set configured by themselves through high-level signaling to the base station.
  • the base station sends DCI to the terminal; one or more bits in the DCI are used to indicate one or more target SRS resource sets; the target SRS resource set is a set of multiple SRS resource sets jointly configured by multiple base stations through high-level signaling.
  • the terminal receives the DCI, and uses one or more bits in the DCI to select one or more target SRS resource sets from multiple SRS resource sets jointly configured by multiple base stations through high-layer signaling for uplink transmission.
  • base station 1 and base station 2 jointly configure two SRS resource sets for the terminal through high-level signaling for uplink transmission, that is, Base station 1 configures set#1 for the terminal through high-layer signaling and base station 2 configures set#2 for the terminal through high-layer signaling.
  • Base station 1 sends the configuration of set#1 to the terminal, and base station 2 sends the configuration of set#2 to the terminal.
  • the terminal sends corresponding SRS resource sets to base station 1 and base station 2 respectively.
  • the base station 1 and the base station 2 negotiate for the base station 1 to deliver the DCI to the terminal, the base station 2 can send the information of set#2 configured by itself through high-layer signaling to the base station 1.
  • Base station 1 can indicate the SRS resource set to the terminal through DCI, which may include the following situations:
  • base station 1 sets 1 bit in the DCI to indicate the SRS resource set to the terminal. Details as follows:
  • 0 indicates one target SRS resource set, that is, set#1 configured by base station 1.
  • 0 indicates one target SRS resource set, that is, set#2 configured by base station 2.
  • “1" indicates one target SRS resource set, that is, set#1 configured by base station 1.
  • the terminal performs PUSCH transmission according to the target SRS resource set indicated by the DCI.
  • base station 1 sets 2 bits in the DCI to indicate the SRS resource set to the terminal. Details as follows:
  • the terminal performs PUSCH transmission according to the target SRS resource set indicated by the DCI.
  • base station 1 sets 2 bits in the DCI to indicate the SRS resource set to the terminal. Details as follows:
  • the first SRS resource set in the two SRS resource sets is associated with all K consecutive slots;
  • the first SRS resource set refers to set#1 configured by base station 1;
  • the second SRS resource set in the two SRS resource sets is associated with all K consecutive slots;
  • the second SRS resource set refers to set#2 configured by base station 2;
  • mapping pattern 1 mapping pattern 1
  • mapping pattern 2 mapping pattern 2
  • the first SRS resource set is associated with the first and second slots
  • the second SRS resource set is associated with the third and second slots.
  • the fourth slot is associated, and the same mapping pattern continues to be applied to the remaining slots in the K consecutive slots;
  • the terminal performs PUSCH transmission on K consecutive slots according to the SRS resource set associated with the slot indicated by the DCI.
  • the terminal when the terminal performs PUSCH transmission according to the SRS resource set indicated by the DCI, it needs to determine the SRS resource corresponding to the selected SRS resource set according to the SRI in the DCI.
  • multiple base stations jointly configure two SRS resource sets (set#1, set#2) for the terminal through high-layer signaling for uplink transmission, wherein set#1 is configured with four resources (resource#1, resource#2, resource#3, resource#4), set#2 configures 4 resources (resource#5, resource#6, resource#7, resource#8).
  • the terminal selects two target SRS resource sets, namely set#1 and set#2 according to one or more bits of the DCI, the terminal further determines corresponding to the two target SRS resource sets respectively according to the two SRIs included in the DCI
  • an embodiment of the present application provides an SRS resource configuration method, which is executed by a terminal and includes: step 401 and step 402 .
  • Step 401 receive DCI
  • Step 402 Indicate one or more target SRS resource sets according to one or more bits in the DCI, where the target SRS resource set is a subset of multiple SRS resource sets configured by the base station for uplink transmission.
  • the target SRS resource set is an SRS resource set in a subset of a set composed of multiple SRS resource sets configured by the base station for uplink transmission.
  • the base station can configure N SRS resource sets for uplink transmission, and set n bits in the DCI to indicate a certain subset of the N SRS resource sets to the terminal.
  • the base station can configure 2 SRS resource sets for the UE in the upper layer for uplink transmission: set#1 is periodic and set#2 is aperiodic. Then the terminal sends SRS resource set#1 and SRS resource set#2 to the base station. After receiving the SRS signal, the base station sets 1 bit in the DCI to indicate the SRS resource set to the UE.
  • the base station configures three SRS resource sets for the UE for uplink transmission: set#1 is periodic, set#2 and set#3 are both aperiodic, after the terminal sends SRS and the base station receives these SRS,
  • the base station sets 2 bits in the DCI to indicate the SRS resource set to the terminal, for example, "00" means set#1, "01” means set#2, "11” means set#3; or set 1 bit , indicating periodic (set#1) or aperiodic (set#2, #3), for example, “0” means periodic (set#1), “1” means aperiodic (set#2, # 3) Alternatively, "1” indicates periodicity (set#1), and “0” indicates aperiodicity (set#2, #3).
  • the method further includes: sending the multiple SRS resource sets (resource sets) configured by the base station for uplink transmission.
  • the base station may configure two SRS resource sets for the UE in RRC for uplink transmission: set#1 is periodic, and set#2 is aperiodic. Then the UE sends SRS resource set#1 and SRS resource set#2 to the base station. After receiving the SRS signal, the base station sets 1 bit in the DCI to indicate the SRS resource set to the UE.
  • the method further includes one of the following:
  • the SRS resource associated with the SRI in the DCI is the receiving time of the DCI The latest periodic SRS resource indicated by the previous SRI;
  • the SRS resource associated with the SRI in the DCI is a reference point (reference point)
  • the SRS resource associated with the SRI in the DCI is the SRS resource of the DCI
  • the most recent semi-persistent periodic SRS resource indicated by the SRI before the reception time, the semi-persistent periodic SRS resource is not sent for the first time after the medium access control element (MAC CE) is activated.
  • MAC CE medium access control element
  • the network side device may configure two or more SRS resource sets for the terminal for codebook-based or non-codebook-based uplink transmission.
  • a network-side equipment terminal sends a P-SRS resource set.
  • the base station finds that the beam channel quality corresponding to the P-SRS resource set is not good, and temporarily triggers an AP-SRS resource set for the terminal.
  • the SRS resource pointed to by the SRI in the DCI is the latest SRS resource before the terminal receives the SRI.
  • the SRS corresponding to the SRI in the subsequent DCI is a P-SRS resource set or an AP-SRS resource set.
  • the first possibility the channel quality of the beam corresponding to the AP-SRS resource set triggered by the base station is worse than that of the P-SRS.
  • the base station hopes to continue to schedule the PUSCH according to the beam direction of the P-SRS.
  • the SRI corresponds to the P-SRS.
  • the second possibility the channel quality of the beam corresponding to the AP-SRS resource set triggered by the base station is better than that of the P-SRS.
  • the base station hopes to schedule the PUSCH according to the beam direction of the AP-SRS.
  • the SRI corresponds to the AP-SRS.
  • the base station can configure N SRS resource sets for uplink transmission, and set n bits (bits) in the DCI to indicate a certain subset of the N SRS resource sets to the terminal.
  • the base station may configure 2 SRS resource sets for the terminal in radio resource control (Radio Resource Control, RRC) for uplink transmission: set#1 is periodic and set#2 is aperiodic. Then the terminal sends SRS resource set#1 and SRS resource set#2 to the base station. After receiving the SRS signal, the base station sets 1 bit in the DCI to indicate the SRS resource set to the terminal.
  • RRC Radio Resource Control
  • the base station configures the terminal with 3 SRS resource sets for uplink transmission: set#1 is periodic, set#2 and set#3 are both aperiodic, after the terminal sends SRS and the base station receives these SRS, The base station sets 2 bits in the DCI to indicate the SRS resource set to the terminal.
  • the base station configures the terminal to send 1 P-SRS resource set.
  • the base station finds that the beam channel quality corresponding to the P-SRS resource set is not good, and temporarily triggers an AP-SRS resource set 1 and 1 for the terminal.
  • AP-SRS resource set 2 is not good.
  • the SRS resource pointed to by the SRI is the latest SRS resource before the terminal receives the SRI. According to the received SRI, the terminal finds the nearest SRS resource as AP-SRS resource set 2.
  • the SRS resources are generally sent on the last six symbols (symbols) of the uplink time slot (UL slot), while the DCI can only be sent on the first three symbols of the downlink time slot (DL slot).
  • the terminal starts from the moment of receiving the DCI, and looks forward to the nearest periodic SRS resource corresponding to the DCI as the target resource;
  • the terminal starts from the reference point and searches forward to the nearest aperiodic SRS resource corresponding to the DCI as the target resource;
  • the terminal starts from the moment of receiving the DCI, and searches for the nearest semi-persistent periodic SRS resource#1 corresponding to the DCI. If the SRS resource#1 is activated on the MAC CE If the SRS resource#1 is sent for the first time after the MAC CE is activated, skip this resource#1 and continue to search for the resource that meets the conditions.
  • the communication system can obtain better flexibility and delay, and achieve a better balance between system performance and overhead.
  • an embodiment of the present application provides an SRS resource configuration method, which is executed by a base station and includes: step 501 .
  • Step 501 Send DCI, where one or more bits in the DCI are used to indicate one or more target SRS resource sets to the terminal, where the target SRS resource sets are multiple SRS resource sets configured by the base station for uplink transmission subset of .
  • the target SRS resource set is an SRS resource set in a subset of a set composed of multiple SRS resource sets configured by the base station for uplink transmission.
  • the method further includes: configuring multiple SRS resource sets for uplink transmission.
  • the communication system can obtain better flexibility and delay, and achieve a better balance between system performance and overhead.
  • an embodiment of the present application provides an apparatus for configuring SRS resources, and the apparatus 600 includes:
  • a determination module 602 configured to indicate one or more target SRS resource sets according to one or more bits in the DCI, where the target SRS resource set is a set of multiple SRS resource sets configured by the base station for uplink transmission Subset.
  • the target SRS resource set is an SRS resource set in a subset of a set composed of multiple SRS resource sets configured by the base station for uplink transmission.
  • the device further includes:
  • the first sending module is configured to send multiple SRS resource sets configured by the base station for uplink transmission.
  • the determining module 602 is further configured to: if one or more target SRS resource sets corresponding to one or more bits in the DCI are all periodic SRS resource sets, then the SRI in the DCI is The associated SRS resource is the latest periodic SRS resource indicated by the SRI before the receiving time of the DCI; or, if one or more target SRS resource sets corresponding to one or more bits in the DCI are all aperiodic SRS resource set, the SRS resource associated with the SRI in the DCI is the latest aperiodic SRS resource indicated by the SRI before the reference point, where the reference point is located before the DCI reception time; or, if the One or more target SRS resource sets corresponding to one or more bits in the DCI are all semi-persistent periodic SRS resource sets, then the SRS resource associated with the SRI in the DCI is the SRI indication before the receiving time of the DCI The most recent semi-persistent periodic SRS resource, the semi-persistent periodic SRS resource set is not
  • the apparatus provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • an embodiment of the present application provides an apparatus for configuring SRS resources, and the apparatus 700 includes:
  • the second sending module 701 is configured to send DCI, where one or more bits in the DCI are used to indicate one or more target SRS resource sets to the terminal, where the target SRS resource sets are multiple configured by the base station for uplink A subset of the transmitted SRS resource set.
  • the target SRS resource set is an SRS resource set in a subset of a set composed of multiple SRS resource sets configured by the base station for uplink transmission.
  • the apparatus 700 further includes: a configuration module configured to configure multiple SRS resource sets for uplink transmission.
  • the apparatus provided in this embodiment of the present application can implement each process implemented by the method embodiment shown in FIG. 5 , and achieve the same technical effect. To avoid repetition, details are not described here.
  • FIG. 8 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 800 includes but is not limited to: a radio frequency unit 801, a network module 802, an audio output unit 803, an input unit 804, a sensor 805, a display unit 806, a user input unit 807, an interface unit 808, a memory 809, a processor 810 and other components .
  • the terminal 800 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 810 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 8 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 804 may include a graphics processor (Graphics Processing Unit, GPU) 8041 and a microphone 8042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 806 may include a display panel 8061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 807 includes a touch panel 8071 and other input devices 8072 .
  • the touch panel 8071 is also called a touch screen.
  • the touch panel 8071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 14072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.
  • the radio frequency unit 801 after receiving the downlink data from the base station, processes it to the processor 810; in addition, it sends the uplink data to the base station.
  • the radio frequency unit 801 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 809 may be used to store software programs or instructions as well as various data.
  • the memory 809 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 809 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 810 may include one or more processing units; optionally, the processor 810 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, application programs or instructions, etc., Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 810.
  • the terminal provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • the base station 900 includes: an antenna 901 , a radio frequency device 902 , and a baseband device 903 .
  • the antenna 901 is connected to the radio frequency device 902 .
  • the radio frequency device 902 receives information through the antenna 901, and sends the received information to the baseband device 903 for processing.
  • the baseband device 903 processes the information to be sent and sends it to the radio frequency device 902
  • the radio frequency device 902 processes the received information and sends it out through the antenna 901 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 903 , and the method performed by the base station in the above embodiments may be implemented in the baseband apparatus 903 .
  • the baseband apparatus 903 includes a processor 904 and a memory 905 .
  • the baseband device 903 may include, for example, at least one baseband board on which a plurality of chips are arranged. As shown in FIG. 9 , one of the chips is, for example, the processor 904 and is connected to the memory 905 to call the program in the memory 905 to execute The base stations shown in the above method embodiments operate.
  • the baseband device 903 may further include a network interface 906 for exchanging information with the radio frequency device 902, and the interface is, for example, a common public radio interface (CPRI for short).
  • CPRI common public radio interface
  • the base station in the embodiment of the present invention further includes: instructions or programs stored in the memory 905 and executable on the processor 904, and the processor 904 invokes the instructions or programs in the memory 905 to execute the instructions or programs executed by the modules shown in FIG. 7 . method, and achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the base station provided in the embodiment of the present application can implement each process implemented by the method embodiment shown in FIG. 5 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the method embodiment shown in FIG. 4 or FIG. 5 is implemented. , and can achieve the same technical effect, in order to avoid repetition, it is not repeated here.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • the steps of the method or algorithm described in conjunction with the disclosure of the present application may be implemented in a hardware manner, or may be implemented in a manner of executing software instructions on a processor.
  • the software instructions may be composed of corresponding software modules, and the software modules may be stored in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and storage medium may be carried in an ASIC.
  • the ASIC may be carried in the core network interface device.
  • the processor and the storage medium may also exist in the core network interface device as discrete components.
  • the functions described in this application may be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.
  • embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本申请实施例提供一种探测参考信号(SRS)资源配置方法、装置、设备及可读存储介质，该方法包括：接收下行控制信息(DCI)；根据所述DCI中的一个或多个比特，指示出一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。在本申请实施例中，通过给终端配置多种不同时域行为的SRS资源集，提高SRS资源集的灵活性。

Description

SRS资源配置方法、装置、设备及可读存储介质
相关申请的交叉引用
本申请基于申请号为202110143726.0、申请日为2021年02月02日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此以全文引入的方式引入本申请。
技术领域
本申请实施例涉及通信技术领域，具体涉及一种探测参考信号(Sounding Reference Signal，SRS)资源配置方法、装置、设备及可读存储介质。
背景技术
参见图1，图中示意基于码本的上行传输流程，当物理上行共享信道(Physical Uplink Shared Channel，PUSCH)配置为基于码本的传输模式时，首先需要终端发送用于基于码本的上行传输的SRS，即探测参考信号集(SRS resource set)的用法(usage)配置为码本(codebook)。其中，对于基于码本的上行传输方案，新空口(New Radio，NR)允许基站为UE最多配置一个SRS resource set用于上行信道估计，且该SRS resource set最多可配置两个探测参考信号资源(SRS resources)。基站根据UE发送的SRS进行上行信道检测，确定出上行传输对应的SRS资源指示(SRS resource indicator，SRI)、上行传输层数(秩指示(rank indication，RI))、传输预编码矩阵指示(transmission precoding matrix indicator，TPMI)、调制与编码策略(Modulation and Coding Scheme，MCS)等，并在下行控制信息(Downlink Control Information，DCI)中将这些信息通知终端。
表1：基于码本的PUSCH传输的SRI指示
Figure PCTCN2022073266-appb-000001
参见图2，图中示意基于非码本的上行传输流程，非码本的上行传输方案与基于码本的上行传输方案的主要区别在于其预编码不再限定在基于固 定码本的有限候选集。并且终端可利用SRI确定数据的预编码和传输层数。
在通信***中，当PUSCH配置为基于非码本的传输模式时，首先需要终端发送用于基于非码本的上行传输的SRS，即SRS resource set的usage配置为非码本(non-codebook)。对于非码本上行传输方案，基站可为终端配置最多1个SRS resource set，包含1～4个SRS资源，每个SRS资源都是单端口。终端基于下行信道估计确定SRS的预编码，并发送预编码的SRS。
基站通过DCI中指示SRI，其中，SRI可指示1个或多个SRS资源。SRI中指示的SRS资源数即为PUSCH传输的RI，SRI中指示的SRS资源所采用的预编码就是PUSCH传输的TPMI，PUSCH的传输层与SRI指示的SRS资源一一对应。
表2：非码本PUSCH传输的SRI指示,L max＝2
Figure PCTCN2022073266-appb-000002
在现有通信***中，基站只能给终端配置最多1个SRS资源集以用于上行传输，这对SRS资源集的灵活性有极大的限制。
发明内容
本申请实施例在于提供一种SRS资源配置方法、装置、设备及可读存储 介质，解决SRS资源集的灵活性较差的问题。
第一方面，提供一种SRS资源配置方法，由终端执行，包括：
接收DCI；
根据所述DCI中的一个或多个比特，指示出一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
可选地，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
可选地，所述方法还包括：
发送基站配置的所述多个用于上行传输的SRS资源集。
可选地，方法还包括：
如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是所述DCI的接收时间之前的SRI指示的最近的周期性SRS资源；
或者，
如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是非周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是参考点之前的SRI指示的最近的非周期性SRS资源，其中，所述参考点位于所述DCI接收时间之前；
或者，
如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是半持续周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是所述DCI的接收时间之前的SRI指示的最近的半持续周期性的SRS资源，所述半持续周期性的SRS资源在MAC CE激活后不是第一次发送。
第二方面，提供一种SRS资源配置方法，由基站执行，包括：
发送DCI，所述DCI中的一个或多个比特用于给终端指示一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
可选地，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
可选地，所述方法还包括：配置多个用于上行传输的SRS资源集。
第三方面，提供一种SRS资源配置装置，包括：
第一接收模块，用于接收DCI；
确定模块，用于根据所述DCI中的一个或多个比特，指示出一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
第四方面，提供一种SRS资源配置装置，包括：
第二发送模块，用于发送DCI，所述DCI中的一个或多个比特用于给终端指示一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
第五方面，提供一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如第一方面所述方法的步骤。
第六方面，提供一种基站，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如第二方面所述方法的步骤。
第七方面，提供一种可读存储介质，所述可读存储介质上存储有程序，所述程序被处理器执行时实现包括如第一方面或第二方面所述的方法的步骤。
在本申请实施例中，通过给终端配置多种不同时域行为的SRS资源集，提高SRS资源集的灵活性。
附图说明
通过阅读下文优选实施方式的详细描述，各种其他的优点和益处对于本领域普通技术人员将变得清楚明了。附图仅用于示出优选实施方式的目的，而并不认为是对本申请的限制。而且在整个附图中，用相同的参考符号表示相同的部件。在附图中：
图1是基于码本的上行传输的示意图；
图2是基于非码本的上行传输的示意图；
图3是本申请实施例可应用的一种无线通信***的示意图；
图4是本申请实施例的SRS资源配置方法的流程图之一；
图5是本申请实施例的SRS资源配置方法的流程图之二；
图6是本申请实施例的SRS资源配置装置的示意图之一；
图7是本申请实施例的SRS资源配置装置的示意图之二；
图8是本申请实施例的终端的示意图；
图9是本申请实施例的基站的示意图；
图10是本申请实施例的基于DCI确定目标SRS资源的示意图之一；
图11是本申请实施例的基于DCI确定目标SRS资源的示意图之二
图12是本申请实施例的基于DCI确定目标SRS资源的示意图之三。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请的说明书和权利要求书中的术语“包括”以及它的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或单元的过程、方法、***、产品或设备不必限于清楚地列出的那些步骤或单元，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或单元。此外，说明书以及权利要求中使用“和/或”表示所连接对象的至少其中之一，例如A和/或B，表示包含单独A，单独B，以及A和B都存在三种情况。
在本申请实施例中，“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言，使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。
值得指出的是，本申请实施例所描述的技术不限于长期演进型(Long Term Evolution，LTE)/LTE的演进(LTE-Advanced，LTE-A)***，还可用于其他无线通信***，诸如码分多址(Code Division Multiple Access，CDMA)、时分多址(Time Division Multiple Access，TDMA)、频分多址(Frequency Division Multiple Access，FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access，OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access，SC-FDMA)和其他***。本申请实施例中的术语“***”和“网络”常被可互换地使用，所描述的技术既可用于以上提及的***和无线电技术，也可用于其他***和无线电技术。然而，以下描述出于示例目的描述了新空口(New Radio，NR)***，并且在以下大部分描述中使用NR术语，尽管这些技术也可应用于NR***应用以外的应用，如第6代(6th Generation，6G)通信***。
图3示出本申请实施例可应用的一种无线通信***的框图。无线通信***包括终端31和网络侧设备32。其中，终端31也可以称作终端设备或者用户终端(User Equipment，UE)，终端31可以是手机、平板电脑(Tablet Personal Computer)、膝上型电脑(Laptop Computer)或称为笔记本电脑、个人数字助理(Personal Digital Assistant，PDA)、掌上电脑、上网本、超级移动个人计算机(ultra-mobile personal computer，UMPC)、移动上网装置(Mobile Internet Device，MID)、可穿戴式设备(Wearable Device)或车载设备(VUE)、行人终端(PUE)等终端侧设备，可穿戴式设备包括：手环、耳机、眼镜等。需要说明的是，在本申请实施例并不限定终端31的具体类型。网络侧设备32可以是基站或核心网侧设备，其中，基站可被称为节点B、演进节点B、接入点、基收发机站(Base Transceiver Station，BTS)、无线电基站、无线电收发机、基本服务集(Basic Service Set，BSS)、扩展服务集(Extended Service Set，ESS)、B节点、演进型B节点(eNB)、家用B节点、家用演进型B节点、WLAN接入点、WiFi节点、发送接收点(Transmitting Receiving Point，TRP)或所述领域中其他某个合适的术语，只要达到相同的技术效果，所述基站不限于指定技术词汇，需要说明的是，在本申请实施例中仅以NR***中的基站为例，但是并不限定基站的具体类 型。
本申请实施例提供一种SRS资源配置方法可以应用于单TRP场景，也可以应用于多TRP场景。在多TRP场景下，一个TRP对应一个基站。以Multi-TRP PUSCH重复(repetition)传输场景为例，多个基站通过高层信令共同为终端配置多个用于上行传输的SRS资源集，各个基站分别将各自的SRS资源集的配置发送给终端。终端接收到各个基站分别发送的SRS资源集的配置后，向各个基站分别发送对应的SRS资源集。各个基站之间进行协商，以确定向终端下发DCI的基站，在确定出向终端下发DCI的基站之后，其他基站分别将自身通过高层信令配置的SRS资源集的信息发送给该基站，该基站向终端发送DCI；DCI中的一个或多个比特，用于指示一个或多个目标SRS资源集；所述目标SRS资源集是多个基站通过高层信令共同配置的多个SRS资源集所构成的集合的子集中的SRS资源集。终端接收DCI，通过DCI中的一个或多个比特，从多个基站通过高层信令共同配置的多个SRS资源集中选择一个或多个目标SRS资源集，以用于上行传输。
举例来说，在Multi-TRP PUSCH重复(repetition)传输场景下，包含基站1和基站2，基站1和基站2通过高层信令共同为终端配置了2个SRS resource set用于上行传输，即，基站1通过高层信令为终端配置的set#1和基站2通过高层信令为终端配置的set#2。基站1将set#1的配置发送给终端，基站2将set#2的配置发送给终端。终端分别向基站1和基站2发送对应的SRS资源集。若基站1和基站2协商由基站1向终端下发DCI，则基站2可以将自身通过高层信令配置的set#2的信息发送给基站1。基站1可以通过DCI，给终端指示出SRS resource set，具体可以包括以下几种情况：
第一种情况，基站1在DCI中设置1个bit，用于给终端指示出SRS resource set。具体如下：
“0”，指示1个目标SRS资源集，即基站1配置的set#1。
“1”，指示1个目标SRS资源集，即基站2配置的set#2。
或者，
“0”，指示1个目标SRS资源集，即基站2配置的set#2。
“1”，指示1个目标SRS资源集，即基站1配置的set#1。
如此，终端按照DCI指示的目标SRS资源集进行PUSCH传输。
第二种情况，基站1在DCI中设置2个bit，用于给终端指示出SRS resource set。具体如下：
“00”，指示2个目标SRS资源集，即基站1配置的set#1和基站2配置的set#2；
“01”，指示2个目标SRS资源集，即基站2配置的set#2和基站1配置的set#1；
“10”，指示1个目标SRS资源集，即基站2配置的set#2；
“11”，指示1个目标SRS资源集，即基站1配置的set#1。
如此，终端按照DCI指示的目标SRS资源集进行PUSCH传输。
第三种情况，假设PUSCH在K(K>1)个连续的时隙(slot)上传输，基站1在DCI中设置2个bit，用于给终端指示出SRS resource set。具体如下：
“00”，指示2个SRS资源集中的第一个SRS资源集与所有K个连续的slot相关联；第一个SRS资源集是指基站1配置的set#1；
“01”，指示2个SRS资源集中的第二个SRS资源集与所有K个连续的slot相关联；第二个SRS资源集是指基站2配置的set#2；
“10”，指示2个SRS资源集都与K个连续的slot相关联，具体如下：
(1)如果K＝2，则第一个SRS资源集与第一个slot相关联，第二个SRS资源集与第二个slot相关联；
(2)如果K>2并且高层信令配置了映射模式1(Mapping pattern 1)，则第一个SRS资源集与第一个slot相关联，第二个SRS资源集与第二个slot相关联，同样的mapping pattern继续应用于K个连续的slot中的剩余slot上，
(3)如果K>2并且高层信令配置了映射模式2(Mapping pattern 2)，则第一个SRS资源集与第一、第二个slot相关联，第二个SRS资源集与第三、第四个slot相关联，同样的mapping pattern继续应用于K个连续的slot中的剩余slot上；
“11”，指示2个SRS资源集都与K个连续的slot相关联，具体如下：
(1)如果K＝2，则第二个SRS资源集与第一个slot相关联，第一个SRS资源集与第二个slot相关联，
(2)如果K>2并且高层信令配置了Mapping pattern 1，则第二个SRS资源集与第一个slot相关联，第一个SRS资源集与第二个slot相关联，同样的mapping pattern继续应用于K个连续的slot中的剩余slot上，
(3)如果K>2并且高层信令配置了Mapping pattern 2，则第二个SRS资源集与第一、第二个slot相关联，第一个SRS资源集与第三、第四个slot相关联，同样的mapping pattern继续应用于K个连续的slot中的剩余slot上。
如此，终端按照DCI指示的与slot关联的SRS资源集，在K个连续的slot上进行PUSCH传输。
需要说明的是，终端按照DCI指示的SRS资源集，进行PUSCH传输时，需要根据DCI中的SRI，确定与选择的SRS资源集对应的SRS资源。
举例来说，假设多个基站通过高层信令共同给终端配置2个SRS资源集(set#1，set#2)，用于上行传输，其中，set#1配置4个resource(resource#1，resource#2，resource#3，resource#4)，set#2配置4个resource(resource#5，resource#6，resource#7，resource#8)。若终端根据DCI的一个或多个比特，选择两个目标SRS资源集，即set#1和set#2，则终端进一步根据DCI中包含的2个SRI，确定与两个目标SRS资源集分别对应的SRS资源；其中，2个SRI中的第一个SRI，用于指示set#1中的SRS资源，即{resource#1，resource#2}；2个SRI中的第二个SRI，用于指示set#2中的SRS资源，即{resource#7，resource#8}，如此，终端利用确定的SRS资源进行PUSCH传输。
参见图4，本申请实施例提供一种SRS资源配置方法，由终端执行，包括：步骤401和步骤402。
步骤401：接收DCI；
步骤402：根据所述DCI中的一个或多个比特，指示出一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
基站可配置N个SRS resource set用于上行传输，并在DCI中设置n个bit用于给终端指示N个SRS resource set的某个子集。
例如，基站可在高层给UE配置2个SRS resource set用于上行传输：set#1是周期性的，set#2是非周期的。之后终端给基站发送SRS resource set#1和SRS resource set#2。基站接收SRS信号之后，在DCI中设置1个bit，用于给UE指示出SRS resource set。
又例如，基站给UE配置了3个SRS resource set用于上行传输：set#1是周期性的，set#2和set#3都是非周期的，在终端发送SRS和基站接收到这些SRS之后，基站在DCI中设置2个bit，用于给终端指示出SRS resource set，比如，“00”表示set#1，“01”表示set#2，“11”表示set#3；或者设置1个bit，指示出周期性(set#1)或非周期性(set#2，#3)，比如，“0”表示周期性(set#1)，“1”表示非周期性(set#2，#3)，或者，“1”表示周期性(set#1)，“0”表示非周期性(set#2，#3)。
在本申请实施例中，所述方法还包括：发送所述基站配置的所述多个用于上行传输的SRS资源集(resource set)。
例如，基站可在RRC中给UE配置2个SRS resource set用于上行传输：set#1是周期性的，set#2是非周期性的。之后UE给基站发送SRS resource set#1和SRS resource set#2。基站接收SRS信号之后，在DCI中设置1个bit，用于给UE指示出SRS resource set。在本申请实施例中，方法还包括以下之一：
(1)如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是所述DCI的接收时间之前的SRI指示的最近的周期性SRS资源；
(2)如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是非周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是参考点(reference point)之前的SRI指示的最近的非周期性SRS资源其中，所述参考点位于所述DCI接收时间之前，该参考点也可以称为生效时间或处理时间；
(3)如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是半持续周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是所 述DCI的接收时间之前的SRI指示的最近的半持续周期性的SRS资源，所述半持续周期性的SRS资源在媒体接入控制控制单元(MAC CE)激活后不是第一次发送。
在本申请实施例中，网络侧设备可以给终端配置2个或以上的SRS resource set以用于基于码本或非码本的上行传输。
例如，网络侧设备终端发送1个P-SRS resource set，随着信道质量的变化，基站发现P-SRS resource set对应的波束信道质量不好，临时为终端触发了一个AP-SRS resource set。比如，DCI中的SRI指向的SRS资源是终端接收SRI前的最近SRS资源。
参见图10，存在如下两种可能：此时后续DCI中的SRI对应的SRS是P-SRS resource set还是AP-SRS resource set。
第一种可能：基站触发的AP-SRS resource set对应的波束信道质量比P-SRS还差，基站希望继续按照P-SRS的波束方向调度PUSCH，此时SRI对应的是P-SRS。
第二种可能：基站触发的AP-SRS resource set对应的波束信道质量比P-SRS好，基站希望按照AP-SRS的波束方向调度PUSCH，此时SRI对应的是AP-SRS。
基站可配置N个SRS resource set用于上行传输，并在DCI中设置n个比特(bit)用于给终端指示N个SRS resource set的某个子集。
例如，基站可在无线资源控制(Radio Resource Control，RRC)中给终端配置2个SRS resource set用于上行传输：set#1是周期性的，set#2是非周期性的。之后终端给基站发送SRS resource set#1和SRS resource set#2。基站接收SRS信号之后，在DCI中设置1个bit，用于给终端指示出SRS resource set。
表3：
   
0 set#1
1 set#2
又例如：基站给终端配置了3个SRS resource set用于上行传输：set#1是周期性的，set#2和set#3都是非周期的，在终端发送SRS以及基站接收到这些SRS之后，基站在DCI中设置2个bit，用于给终端指示出SRS resource set。
再例如，基站配置终端发送1个P-SRS resource set，随着信道质量的变化，基站发现P-SRS resource set对应的波束信道质量不好，临时为终端触发了一个AP-SRS resource set 1和AP-SRS resource set 2。
在现有通信***中，SRI指向的SRS资源是终端接收SRI前的最近SRS资源。终端根据收到的SRI，找到的最近SRS资源是AP-SRS resource set 2。
可以理解的是，SRS资源一般是在上行时隙(UL slot)的最后6个符号(symbol)上发送，而DCI只能在下行时隙(DL slot)的前3个symbol上发送。
假设AP-SRS resource set 2在UL slot最后1个symbol发送，SRI所在的DCI在下一个slot的第1个symbol发送。考虑基站信道估计的时间，此时DCI中的SRI不可能是基站基于AP-SRS resource set 2的信道估计结果确定的，参见图11。
考虑基站信道估计解调时间，为终端定义一个参考点(reference point)(参考点应早于DCI接收时刻)，使得终端可以找到此SRI对应的正确SRS resource set，参见图12。
假如DCI对应的是周期性SRS resource set，那么终端从接收DCI的时刻开始，向前寻找与DCI相对应的最近的周期性SRS resource，作为目标resource；
假如DCI对应的是非周期性SRS resource set，终端从reference point开始，向前寻找与DCI相对应的最近的非周期性SRS resource，作为目标resource；
假如DCI对应的是半持续周期性SRS resource set，终端从接收DCI的时刻开始，向前寻找与DCI相对应的最近的半持续周期性的SRS resource#1，假如SRS resource#1在MAC CE激活后不是第一次发送，即为目标resource； 假如SRS resource#1是在MAC CE激活后第一次发送，跳过此resource#1，继续向前寻找满足条件的resource。
在本申请实施例中，通过给终端配置多种不同时域行为的SRS资源集，通信***可以获得更好的灵活性和时延，并在***性能和开销之间取得更好的平衡。
参见图5，本申请实施例提供一种SRS资源配置方法，由基站执行，包括：步骤501。
步骤501：发送DCI，所述DCI中的一个或多个比特用于给终端指示一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
在本申请实施例中，所述方法还包括：配置多个用于上行传输的SRS资源集。
在本申请实施例中，通过给终端配置多种不同时域行为的SRS资源集，使得通信***可以获得更好的灵活性和时延，并在***性能和开销之间取得更好的平衡。
参见图6，本申请实施例提供一种SRS资源配置装置，该装置600包括：
第一接收模块601，用于接收DCI；
确定模块602，用于根据所述DCI中的一个或多个比特，指示出一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
在本申请实施例中，该装置还包括：
第一发送模块，用于发送基站配置的多个用于上行传输的SRS资源集。
在本申请实施例中，确定模块602进一步用于：如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是周期性SRS资源集，则所 述DCI中SRI所关联的SRS资源是所述DCI的接收时间之前的SRI指示的最近的周期性SRS资源；或者，如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是非周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是参考点之前的SRI指示的最近的非周期性SRS资源，其中，所述参考点位于所述DCI接收时间之前；或者，如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是半持续周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是所述DCI的接收时间之前的SRI指示的最近的半持续周期性的SRS资源，所述半持续周期性的SRS资源集在MAC CE激活后不是第一次发送。
本申请实施例提供的装置能够实现图4所示的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
参见图7，本申请实施例提供一种SRS资源配置装置，该装置700包括：
第二发送模块701，用于发送DCI，所述DCI中的一个或多个比特用于给终端指示一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
在本申请实施例中，装置700还包括：配置模块，用于配置多个用于上行传输的SRS资源集。
本申请实施例提供的装置能够实现图5所示的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
图8为实现本申请实施例的一种终端的硬件结构示意图。
该终端800包括但不限于：射频单元801、网络模块802、音频输出单元803、输入单元804、传感器805、显示单元806、用户输入单元807、接口单元808、存储器809、以及处理器810等部件。
本领域技术人员可以理解，终端800还可以包括给各个部件供电的电源(比如电池)，电源可以通过电源管理***与处理器810逻辑相连，从而通过电源管理***实现管理充电、放电、以及功耗管理等功能。图8中示 出的终端结构并不构成对终端的限定，终端可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置，在此不再赘述。
应理解的是，本申请实施例中，输入单元804可以包括图形处理器(Graphics Processing Unit，GPU)8041和麦克风8042，图形处理器8041对在视频捕获模式或图像捕获模式中由图像捕获装置(如摄像头)获得的静态图片或视频的图像数据进行处理。显示单元806可包括显示面板8061，可以采用液晶显示器、有机发光二极管等形式来配置显示面板8061。用户输入单元807包括触控面板8071以及其他输入设备8072。触控面板8071，也称为触摸屏。触控面板8071可包括触摸检测装置和触摸控制器两个部分。其他输入设备14072可以包括但不限于物理键盘、功能键(比如音量控制按键、开关按键等)、轨迹球、鼠标、操作杆，在此不再赘述。
本申请实施例中，射频单元801将来自基站的下行数据接收后，给处理器810处理；另外，将上行的数据发送给基站。通常，射频单元801包括但不限于天线、至少一个放大器、收发信机、耦合器、低噪声放大器、双工器等。
存储器809可用于存储软件程序或指令以及各种数据。存储器809可主要包括存储程序或指令区和存储数据区，其中，存储程序或指令区可存储操作***、至少一个功能所需的应用程序或指令(比如声音播放功能、图像播放功能等)等。此外，存储器809可以包括高速随机存取存储器，还可以包括非易失性存储器，其中，非易失性存储器可以是只读存储器(Read-Only Memory，ROM)、可编程只读存储器(Programmable ROM，PROM)、可擦除可编程只读存储器(Erasable PROM，EPROM)、电可擦除可编程只读存储器(Electrically EPROM，EEPROM)或闪存。例如至少一个磁盘存储器件、闪存器件、或其他非易失性固态存储器件。
处理器810可包括一个或多个处理单元；可选的，处理器810可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作***、用户界面和应用程序或指令等，调制解调处理器主要处理无线通信，如基带处理器。可以理解的是，上述调制解调处理器也可以不集成到处理器810中。
本申请实施例提供的终端能够实现图4所示的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供了一种基站。如图9所示，该基站900包括：天线901、射频装置902、基带装置903。天线901与射频装置902连接。在上行方向上，射频装置902通过天线901接收信息，将接收的信息发送给基带装置903进行处理。在下行方向上，基带装置903对要发送的信息进行处理，并发送给射频装置902，射频装置902对收到的信息进行处理后经过天线901发送出去。
上述频带处理装置可以位于基带装置903中，以上实施例中基站执行的方法可以在基带装置903中实现，该基带装置903包括处理器904和存储器905。
基带装置903例如可以包括至少一个基带板，该基带板上设置有多个芯片，如图9所示，其中一个芯片例如为处理器904，与存储器905连接，以调用存储器905中的程序，执行以上方法实施例中所示的基站操作。
该基带装置903还可以包括网络接口906，用于与射频装置902交互信息，该接口例如为通用公共无线接口(common public radio interface，简称CPRI)。
具体地，本发明实施例的基站还包括：存储在存储器905上并可在处理器904上运行的指令或程序，处理器904调用存储器905中的指令或程序执行图7所示各模块执行的方法，并达到相同的技术效果，为避免重复，故不在此赘述。
本申请实施例提供的基站能够实现图5所示的方法实施例实现的各个过程，并达到相同的技术效果，为避免重复，这里不再赘述。
本申请实施例还提供一种可读存储介质，所述可读存储介质上存储有程序或指令，该程序或指令被处理器执行时实现上述图4或图5所示方法实施例的各个过程，且能达到相同的技术效果，为避免重复，这里不再赘述。
其中，所述处理器为上述实施例中所述的终端中的处理器。所述可读存储介质，包括计算机可读存储介质，如计算机只读存储器(Read-Only  Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等。
结合本申请公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以由在处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于RAM、闪存、ROM、EPROM、EEPROM、寄存器、硬盘、移动硬盘、只读光盘或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以携带在ASIC中。另外，该ASIC可以携带在核心网接口设备中。当然，处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本申请所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本申请的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本申请的具体实施方式而已，并不用于限定本申请的保护范围，凡在本申请的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本申请的保护范围之内。
本领域内的技术人员应明白，本申请实施例可提供为方法、***、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(***)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (12)

  1. 一种探测参考信号SRS资源配置方法，由终端执行，包括：
    接收下行控制信息DCI；
    根据所述DCI中的一个或多个比特，指示出一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
  2. 根据权利要求1所述的方法，其中，
    所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
  3. 根据权利要求1所述的方法，其中，所述方法还包括：
    发送所述基站配置的所述多个用于上行传输的SRS资源集。
  4. 根据权利要求1所述的方法，其中，所述方法还包括：
    如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是周期性SRS资源集，则所述DCI中SRS资源指示SRI所关联的SRS资源是所述DCI的接收时间之前的SRI指示的最近的周期性SRS资源；
    或者，
    如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是非周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是参考点之前的SRI指示的最近的非周期性SRS资源，其中，所述参考点位于所述DCI接收时间之前；
    或者，
    如果所述DCI中的一个或多个比特对应的一个或多个目标SRS资源集都是半持续周期性SRS资源集，则所述DCI中SRI所关联的SRS资源是所述DCI的接收时间之前的SRI指示的最近的半持续周期性的SRS资源，所述半持续周期性的SRS资源在激活后不是第一次发送。
  5. 一种SRS资源配置方法，由基站执行，包括：
    发送DCI，所述DCI中的一个或多个比特用于给终端指示一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
  6. 根据权利要求5所述的方法，其中，
    所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集所构成的集合的子集中的SRS资源集。
  7. 根据权利要求5所述的方法，其中，所述方法还包括：
    配置多个用于上行传输的SRS资源集。
  8. 一种SRS资源配置装置，包括：
    第一接收模块，用于接收DCI；
    确定模块，用于根据所述DCI中的一个或多个比特，指示出一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
  9. 一种SRS资源配置装置，包括：
    第二发送模块，用于发送DCI，所述DCI中的一个或多个比特用于给终端指示一个或多个目标SRS资源集，所述目标SRS资源集是基站配置的多个用于上行传输的SRS资源集的子集。
  10. 一种终端，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求1至4中任一项所述方法的步骤。
  11. 一种基站，包括：处理器、存储器及存储在所述存储器上并可在所述处理器上运行的程序，所述程序被所述处理器执行时实现如权利要求5至7中任一项所述方法的步骤。
  12. 一种可读存储介质，所述可读存储介质上存储有程序，所述程序被处理器执行时实现包括如权利要求1至7中任一项所述的方法的步骤。
PCT/CN2022/073266 2021-02-02 2022-01-21 Srs资源配置方法、装置、设备及可读存储介质 WO2022166622A1 (zh)

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