WO2025201431A1 - 一种信息传输方法、相关设备、存储介质及计算机产品 - Google Patents
一种信息传输方法、相关设备、存储介质及计算机产品Info
- Publication number
- WO2025201431A1 WO2025201431A1 PCT/CN2025/085174 CN2025085174W WO2025201431A1 WO 2025201431 A1 WO2025201431 A1 WO 2025201431A1 CN 2025085174 W CN2025085174 W CN 2025085174W WO 2025201431 A1 WO2025201431 A1 WO 2025201431A1
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- WIPO (PCT)
- Prior art keywords
- antenna port
- port group
- antenna
- terminal
- srs
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/0413—MIMO systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
-
- 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
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Definitions
- the present disclosure relates to the field of wireless communication technology, and in particular to an information transmission method, related equipment, storage medium, and computer product.
- terminals In wireless communications, terminals typically transmit a Sounding Reference Signal (SRS) to enable the base station to determine the channel quality of the terminal.
- SRS Sounding Reference Signal
- the SRS rotation mechanism is introduced, that is, in the case of multiple antennas, SRS resources are transmitted in rotation through antenna switching.
- Embodiments of the present disclosure provide an information transmission method, related equipment, storage medium, and computer product.
- An embodiment of the present disclosure provides an information transmission method, applied to a terminal, the method comprising:
- a current antenna port group is determined in the antenna port group. After different antenna characteristics are transmitted in rotation using a sounding reference signal (SRS) resource in the current antenna port group, the current antenna port group is switched to a next antenna port group, and different antenna characteristics of the next antenna port group are transmitted in rotation using an SRS resource.
- SRS sounding reference signal
- the method also includes: determining multiple antenna port groups based on the serial number of the antenna port group and the serial number of different antenna characteristics corresponding to each antenna port group, wherein the antenna vibrator connected to any uplink RF channel in an antenna port group is connected to other uplink RF channels in the antenna port group, and/or the multiple uplink RF channels corresponding to the antenna port group work simultaneously, corresponding to only one antenna characteristic.
- the antenna characteristics include physical characteristics between antenna units in the antenna array at different times.
- a terminal comprises: a first communication interface and a first processor; wherein the first communication interface is used to: determine a current antenna port group in the antenna port group, and after using a sounding reference signal (SRS) resource to transmit different antenna characteristics in the current antenna port group, switch the current antenna port group to a next antenna port group, and use the SRS resource to transmit different antenna characteristics of the next antenna port group.
- SRS sounding reference signal
- a network device comprises: a second communication interface and a second processor; wherein the second communication interface is used for: a receiving terminal determines a current antenna port group in an antenna port group, and after using a sounding reference signal (SRS) resource to transmit different antenna characteristics in the current antenna port group, switches the current antenna port group to a next antenna port group, and uses the SRS resource to transmit different antenna characteristics of the next antenna port group.
- SRS sounding reference signal
- the embodiments of the present disclosure further provide a storage medium on which a computer program is stored.
- the computer program is executed by a processor, the steps of any of the above methods are implemented.
- An embodiment of the present disclosure further provides a computer product, including a computer program, which implements the steps of any of the above methods when executed by a processor.
- FIG1 is a schematic diagram of a flow chart of an information transmission method according to an embodiment of the present disclosure
- FIG2 is a flow chart of another information transmission method according to an embodiment of the present disclosure.
- FIG3 is a schematic diagram of a terminal-side antenna connection structure according to an embodiment of the present disclosure.
- FIG4 is a schematic diagram of an SRS time domain resource configuration according to an embodiment of the present disclosure.
- FIG5 is a schematic diagram of another terminal-side antenna connection structure according to an embodiment of the present disclosure.
- FIG6 is a schematic diagram of another SRS time domain resource configuration according to an embodiment of the present disclosure.
- FIG7 is a schematic diagram of a flow chart of SRS configuration in a novel multi-input multi-output (MIMO) system according to an embodiment of the present disclosure
- FIG8 is a schematic structural diagram of an information transmission device provided on a terminal according to an embodiment of the present disclosure.
- FIG9 is a schematic structural diagram of an information transmission device provided on a network device according to an embodiment of the present disclosure.
- FIG10 is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure.
- FIG11 is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure.
- Channel sounding is one of the important steps in the MIMO system.
- the transmitter can use the detected wireless channel to assist in transmission.
- the SRS can be sent by the terminal, and the base station can obtain the downlink channel state information (Channel State Information, CSI) according to the channel reciprocity.
- CSI Channel State Information
- the number of uplink and downlink transmitting antennas (RF channels) on the terminal side is different.
- the equivalent channel encompasses not only the physical channel used for air interface transmission but also the beamforming processing performed by the transmitter and receiver.
- the uplink channel estimation scheme based on SRS antenna switching in existing protocols cannot fully capture the equivalent channel.
- the key principle of this novel MIMO scheme is to dynamically adjust antenna characteristics in conjunction with signal upsampling and other processing to achieve rapid changes in antenna characteristics within a symbol period. Because the spatial channels between multiple antennas in a MIMO system have both direction and energy, adjusting the physical characteristics of the antenna elements in the array at different times can dynamically change the beam pointing direction or gain of the antenna array.
- This rapid change in antenna characteristics can cause the system's equivalent channel to change accordingly, thereby expanding the spatial and temporal degrees of freedom of the MIMO system during actual data transmission.
- This allows for the formation of multiple additional virtual channels in addition to the existing physical RF channels.
- These expanded virtual channels enable the reception of more data streams, exponentially increasing the system's spectral efficiency.
- the antenna connection structure on the terminal side will change. This will no longer be a purely digital structure.
- a hybrid digital-analog architecture is expected to be applied to the terminal side. This means the number of RF channels will be smaller than the number of antennas, and each antenna will be connected to multiple RF channels. This will enable the terminal antenna array to generate directional analog beams, resulting in a continuously changing spatial equivalent channel.
- the impact of the terminal-side analog beams must be considered.
- the terminal side of the traditional MIMO system is a purely digital architecture.
- the protocol When designing the SRS antenna rotation function, the protocol only considers the switching of antenna ports, without considering the impact of the analog front end.
- the present disclosure proposes that in the SRS antenna rotation function, not only the antenna port/antenna port group should be switched, but also the various antenna characteristics within each antenna port/antenna port group should be rotated to adapt to the requirements of the new MIMO system.
- the present disclosure provides an information transmission method, which is applied to a terminal. As shown in FIG1 , the method includes:
- Step 101 Determine the current antenna port group in the antenna port group, use the sounding reference signal SRS resources to transmit different antenna characteristics in the current antenna port group, switch the current antenna port group to the next antenna port group, and use the SRS resources to transmit different antenna characteristics of the next antenna port group.
- the present disclosure can improve the SRS rotation method.
- a fixed antenna port group is used to rotate the multiple antenna characteristics within the antenna port group.
- the antenna port group is switched and the various antenna characteristics within other antenna port groups are rotated.
- the base station can obtain the downlink equivalent channel based on channel reciprocity, thereby using SRS resources to complete channel detection.
- the above information transmission method may further include the following steps:
- the antenna characteristics may include physical characteristics between antenna elements in the antenna array at different times.
- the number of periodic or semi-persistent SRS resource sets configured by the terminal for antenna switching is at most equal to the number of antenna port groups.
- the number of SRS resource sets is exactly equal to the number of antenna port groups, the number of SRS resources sent on different OFDM symbols contained in each SRS resource set is equal to the number of different antenna characteristics that can be generated by the antenna port group corresponding to the resource set.
- 5G communication systems introduce SRS resource sets.
- some terminals can support multiple SRS resource sets. If a terminal supports multiple SRS resource sets, the multiple SRS resource sets may not be transmitted in the same time slot. Because it takes time for the terminal to switch antenna ports, a certain guard interval can be considered between SRS resource sets.
- the setting of the guard interval during SRS transmission can include: fixing a certain antenna port group, and not setting a guard interval when switching antenna characteristics within the group.
- a guard interval is set between the last SRS resource corresponding to each antenna port group and the first SRS resource corresponding to the next antenna port group.
- the setting of the guard interval during SRS transmission may include setting the guard interval only when switching antenna port groups.
- the number of symbols occupied by the guard interval is related to the subcarrier spacing. The larger the subcarrier spacing, the more symbols occupied by the guard interval.
- Step 706 All antennas corresponding to the i-th group of antenna ports on the UE generate q types of antenna characteristics in turn, and use the i-th group of antenna ports to transmit SRS to the base station in turn.
- This disclosure proposes that in the SRS antenna rotation function, not only the antenna port/antenna port group should be switched, but also the various antenna characteristics within each antenna port/antenna port group should be rotated, so that the base station can obtain complete downlink equivalent channel CSI through SRS. Only when the base station fully obtains the different equivalent channels when multiple RF channels and antenna characteristics on the terminal side are switched together can it notify the terminal to select one or more antenna characteristics from several antenna characteristics for downlink reception.
- the above new features in the new MIMO system all require modifications to the antenna switching function of SRS to adapt to the requirements of the new MIMO system.
- a terminal can refer to a device that provides voice and/or data connectivity to users.
- a terminal can communicate with one or more core networks via a radio access network (RAN).
- RAN radio access network
- a terminal can be an IoT user equipment (UE), such as a sensor device, a mobile phone, or a computer with an IoT UE.
- UE user equipment
- the terminal can be a fixed, portable, pocket-sized, handheld, built into a computer, or mounted in a vehicle. Examples include a station (STA), subscriber unit, subscriber station, mobile station, mobile station, remote station, access point, user terminal, and user agent.
- a terminal can be a device on an unmanned aerial vehicle.
- a terminal can be an in-vehicle device, such as a driving computer with wireless communication capabilities, or a wireless communication device connected to an external driving computer.
- a terminal can be a roadside device, such as a streetlight, traffic light, or other roadside device with wireless communication capabilities.
- the network device may be a device used to communicate with a terminal in a wireless communication system.
- the wireless communication system may be a fourth-generation mobile communication (4G) system, also known as a Long Term Evolution (LTE) system; or a 5G system, also known as a new radio (NR) system or a 5G NR system.
- 4G fourth-generation mobile communication
- 5G also known as a new radio (NR) system or a 5G NR system.
- NR new radio
- the wireless communication system may be a next-generation system of the 5G system.
- the access network in the 5G system may be called a new generation-radio access network (NG-RAN).
- NG-RAN new generation-radio access network
- the network equipment may be referred to as wireless access network equipment, including, for example, access network equipment such as a base station (eg, access point), which may refer to equipment in an access network that communicates with a terminal via one or more cells over an air interface.
- access network equipment such as a base station (eg, access point), which may refer to equipment in an access network that communicates with a terminal via one or more cells over an air interface.
- the network device can be the evolved access device (eNB) adopted in the 4G system.
- the network device can also be the access device (gNB) that adopts a centralized distributed architecture in the 5G system.
- the network device adopts a centralized distributed architecture it usually includes a centralized unit (CU) and at least two distributed units (DU).
- the centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (PHY) layer protocol stack.
- PDCP packet data convergence protocol
- RLC radio link control protocol
- MAC media access control
- PHY physical
- a wireless connection can be established between the network device and the terminal via a wireless air interface.
- the wireless air interface can be a wireless air interface based on the 4G standard; or, the wireless air interface can be a wireless air interface based on the 5G standard, such as a new air interface; or, the wireless air interface can be a wireless air interface based on the next-generation mobile communication network technology standard of 5G.
- the embodiment of the present disclosure further provides an information transmission device, which can be provided on the terminal. As shown in FIG8 , the device includes:
- the first sending unit 801 is used to determine the current antenna port group in the antenna port group, and after using the sounding reference signal SRS resources to transmit different antenna characteristics in the current antenna port group, switch the current antenna port group to the next antenna port group, and use the SRS resources to transmit different antenna characteristics of the next antenna port group.
- the device also includes: a first processing unit 802, which is used to determine multiple antenna port groups based on the serial number of the antenna port group and the serial number of different antenna characteristics corresponding to each antenna port group, wherein the antenna vibrator connected to any uplink RF channel in an antenna port group is connected to other uplink RF channels in an antenna port group, and/or, multiple uplink RF channels corresponding to an antenna port group work simultaneously, corresponding to only one antenna characteristic.
- a first processing unit 802 which is used to determine multiple antenna port groups based on the serial number of the antenna port group and the serial number of different antenna characteristics corresponding to each antenna port group, wherein the antenna vibrator connected to any uplink RF channel in an antenna port group is connected to other uplink RF channels in an antenna port group, and/or, multiple uplink RF channels corresponding to an antenna port group work simultaneously, corresponding to only one antenna characteristic.
- the antenna characteristics include physical characteristics between antenna elements in the antenna array at different times.
- the first processing unit 802 is configured to determine an antenna port group switching period and a number of SRS resource sets according to the number of antenna port groups, where an SRS resource set includes one or more SRS resources.
- no guard interval is determined between the multiple SRS resources.
- a guard interval is set between the last SRS resource corresponding to each antenna port group and the first SRS resource of the next antenna port group.
- the first sending unit 801 is used to send radio resource control RRC signaling to the network device, and the RRC signaling carries one or more of the following: the number of uplink RF channels; the number of downlink RF channels; the number of antenna port groups; and the number of antenna characteristics corresponding to each antenna port group.
- the apparatus further includes: a first receiving unit 803, configured to receive first information sent by a network device, where the first information indicates a downlink optimal receiving antenna characteristic or an optimal receiving antenna characteristic combination.
- the first receiving unit 803 is used to perform one or more of the following: receiving RRC signaling sent by the network device, the RRC signaling includes the first information; receiving DCI sent by the network device, the DCI includes the first information; receiving MAC CE sent by the network device, the MAC CE includes the first information.
- the first processing unit 802 may be implemented by a processor in the terminal; the first sending unit 801 and the first receiving unit 803 may be implemented by a communication interface in the terminal.
- the embodiment of the present disclosure further provides an information transmission device, which can be set on the network device.
- the device includes:
- the second receiving unit 901 is used to receive the terminal to determine the current antenna port group in the antenna port group, and after using the sounding reference signal SRS resource to transmit different antenna characteristics in the current antenna port group, switch the current antenna port group to the next antenna port group and use the different antenna characteristics of the next antenna port group transmitted by the SRS resource.
- the second receiving unit 901 is used to receive radio resource control RRC signaling sent by the terminal, where the RRC signaling carries one or more of the following: the number of uplink RF channels; the number of downlink RF channels; the number of antenna port groups; and the number of antenna characteristics corresponding to each antenna port group.
- the apparatus further includes: a second sending unit 902, configured to send first information to the terminal, where the first information indicates a downlink optimal receiving antenna characteristic or an optimal receiving antenna characteristic combination.
- the second sending unit 902 is used to perform one or more of the following: sending RRC signaling to the terminal, the RRC signaling includes the first information; or, sending DCI to the terminal, the DCI includes the first information; or, sending MAC CE to the terminal, the MAC CE includes the first information.
- the second receiving unit 901 and the second sending unit 902 can be implemented by a communication interface in a network device.
- the embodiment of the present disclosure further provides a terminal, as shown in FIG10 , the terminal 1000 includes: a first communication interface 1001 and a first processor 1002; wherein,
- the first memory 1003 stores computer programs that can be run on the first processor 1002 .
- a guard interval is set between the last SRS resource corresponding to each antenna port group and the first SRS resource of the next antenna port group.
- the first communication interface 1001 is used to send radio resource control RRC signaling to the network device, and the RRC signaling carries one or more of the following: the number of uplink RF channels; the number of downlink RF channels; the number of antenna port groups; and the number of antenna characteristics corresponding to each antenna port group.
- the first communication interface 1001 is configured to receive first information sent by a network device, where the first information indicates a downlink optimal receiving antenna characteristic or an optimal receiving antenna characteristic combination.
- the first communication interface 1001 is configured to receive first information sent by a network device, including one or more of the following:
- the first memory 1003 in the embodiment of the present disclosure is used to store various types of data to support the operation of the terminal 1000.
- Examples of such data include: any computer program used to operate on the terminal 1000.
- the methods disclosed in the above embodiments of the present disclosure can be applied to the first processor 1002 or implemented by the first processor 1002.
- the first processor 1002 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by hardware integrated logic circuits in the first processor 1002 or by software instructions.
- the above first processor 1002 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- DSP digital signal processor
- the first processor 1002 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present disclosure.
- a general-purpose processor may be a microprocessor or any conventional processor.
- the steps of the methods disclosed in conjunction with the embodiments of the present disclosure can be directly implemented as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a storage medium located in the first memory 1003.
- the first processor 1002 reads the information in the first memory 1003 and completes the steps of the above method in conjunction with its hardware.
- the embodiment of the present disclosure further provides a network device, as shown in FIG11 , the network device 1100 includes: a second communication interface 1101 and a second processor 1102; wherein,
- the second communication interface 1101 is capable of exchanging information with network devices
- the second processor 1102 is connected to the second communication interface 1101 to implement information interaction with the terminal, and is used to execute the methods provided by one or more technical solutions on the network device side when running the computer program;
- the second memory 1103 stores computer programs that can be executed on the second processor 1102 .
- the second communication interface 1101 is used for the receiving terminal to determine the current antenna port group in the antenna port group, and after using the detection reference signal SRS resource to transmit different antenna characteristics in the current antenna port group, switch the current antenna port group to the next antenna port group, and use the different antenna characteristics of the next antenna port group transmitted by the SRS resource.
- the second communication interface 1101 is used to receive radio resource control RRC signaling sent by the terminal, where the RRC signaling carries one or more of the following: the number of uplink RF channels; the number of downlink RF channels; the number of antenna port groups; and the number of antenna characteristics corresponding to each antenna port group.
- the second communication interface 1101 is configured to send first information to the terminal, where the first information indicates a downlink optimal receiving antenna characteristic or an optimal receiving antenna characteristic combination.
- the second communication interface 1101 is used to send the first information to the terminal, including one or more of the following: sending RRC signaling to the terminal, the RRC signaling includes the first information; sending DCI to the terminal, the DCI includes the first information; sending MAC CE to the terminal, the MAC CE includes the first information.
- the second memory 1103 in the embodiment of the present disclosure is used to store various types of data to support the operation of the network device 1100. Examples of such data include: any computer program used to operate on the network device 1100.
- the methods disclosed in the above embodiments of the present disclosure can be applied to the second processor 1102 or implemented by the second processor 1102.
- the second processor 1102 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method can be completed by the hardware integrated logic circuit in the second processor 1102 or by instructions in the form of software.
- the above second processor 1102 may be a general-purpose processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.
- DSP digital signal processor
- the second processor 1102 can implement or execute the various methods, steps, and logic block diagrams disclosed in the embodiments of the present disclosure.
- a general-purpose processor may be a microprocessor or any conventional processor.
- the steps of the methods disclosed in conjunction with the embodiments of the present disclosure can be directly implemented as being executed by a hardware decoding processor, or can be executed by a combination of hardware and software modules in the decoding processor.
- the software module can be located in a storage medium located in the second memory 1103.
- the second processor 1102 reads the information in the second memory 1103 and completes the steps of the above method in conjunction with its hardware.
- the network device 1100 can be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers (MCUs), microprocessors, or other electronic components to execute the aforementioned method.
- ASICs application-specific integrated circuits
- DSPs digital signal processors
- PLDs programmable logic devices
- CPLDs complex programmable logic devices
- FPGAs field-programmable gate arrays
- general-purpose processors controllers, microcontrollers (MCUs), microprocessors, or other electronic components to execute the aforementioned method.
- the memory of the embodiments of the present disclosure may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
- the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), magnetic random access memory (FRAM), flash memory, magnetic surface storage, optical disk, or compact disc read-only memory (CD-ROM); the magnetic surface storage may be magnetic disk storage or tape storage.
- the volatile memory may be random access memory (RAM), which is used as an external cache.
- RAM Random Access Memory
- SRAM Static Random Access Memory
- SSRAM Synchronous Static Random Access Memory
- DRAM Dynamic Random Access Memory
- SDRAM Synchronous Dynamic Random Access Memory
- DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
- ESDRAM Enhanced Synchronous Dynamic Random Access Memory
- SLDRAM Sync Link Dynamic Random Access Memory
- DRRAM Direct Rambus Random Access Memory
- the present disclosure further provides a computer product, including a computer program, which can be executed by the first processor 1002 of the terminal 1000 to complete the steps of the above-mentioned method on the terminal side.
- a computer program can be executed by the second processor 1102 of the network device 1100 to complete the steps of the above-mentioned method on the network device side.
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Abstract
本公开提供了一种信息传输方法、相关设备、存储介质及计算机产品,该方法包括:在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发下一个天线端口组不同的天线特性。
Description
相关申请的交叉引用
本公开基于申请号为202410354143.6、申请日为2024年03月26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引入本公开作为参考。
本公开涉及无线通信技术领域,尤其涉及一种信息传输方法、相关设备、存储介质及计算机产品。
在无线通信中,为了使基站能够获得终端的信道质量,通常终端需要发射探测参考信号(Sounding Reference Signal,SRS)。终端能够参与发送SRS的天线数越多,信道估计就越准,进而能获得的速率越高。
在第五代移动通信技术(5th Generation Mobile Communication Technology,5G)通信系统中,引入了SRS的轮发机制,即在多天线情况下,通过天线切换轮发SRS资源。
本公开实施例提供一种信息传输方法、相关设备、存储介质及计算机产品。
本公开实施例的技术方案是这样实现的:
本公开实施例提供了一种信息传输方法,应用于终端,该方法包括:
在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发所述下一个天线端口组不同的天线特性。
上述方案中,所述方法还包括:基于天线端口组的序号和每个天线端口组对应的不同天线特性的序号确定多个天线端口组,其中,一个天线端口组内任一上行射频通道相连的天线振子与所述一个天线端口组内其他上行射频通道相连,和/或,所述一个天线端口组对应的多个上行射频通道同时工作,只对应一种天线特性。
上述方案中,所述天线特性包括天线阵列中天线单元间在不同时刻的物理特性。
上述方案中,所述方法还包括:根据所述天线端口组的组数确定天线端口组切换的周期和SRS资源集个数,一个SRS资源集包括一个或多个SRS资源。
上述方案中,在同一个SRS资源集内的多个SRS资源对应同一个天线端口组的情况下,则所述多个SRS资源间确定无保护间隔。
上述方案中,在同一个SRS资源集内的多个SRS资源对应的天线端口组为多个的情况下,则每个天线端口组对应的最后一个SRS资源与下一个天线端口组的第一个SRS资源间设置保护间隔。
上述方案中,所述方法还包括:向网络设备发送无线资源控制(Downlink Control Information,RRC)信令,所述RRC信令携带以下一个或多个:
上行射频通道数;
下行射频通道数;
天线端口组数;
每个天线端口组对应的天线特性数。
上述方案中,所述方法还包括:接收网络设备发送的第一信息,所述第一信息指示下行最优接收天线特性或最优接收天线特性组合。
上述方案中,接收网络设备发送的第一信息,包括以下一个或多个:
接收所述网络设备发送的RRC信令,所述RRC信令包含所述第一信息;
接收所述网络设备发送的下行控制信息(Downlink Control Information,DCI),所述DCI包含所述第一信息;
接收所述网络设备发送的媒体接入控制(Media Access Control,MAC)控制元素(Control Element,CE),所述MAC CE包含所述第一信息。
本公开实施例提供了一种信息传输方法,应用于网络设备,该方法包括:
接收终端在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发的所述下一个天线端口组不同的天线特性。
上述方案中,所述方法还包括:
接收终端发送的无线资源控制RRC信令,所述RRC信令携带以下一个或多个:
上行射频通道数;
下行射频通道数;
天线端口组数;
每个天线端口组对应的天线特性数。
上述方案中,所述方法还包括:向终端发送第一信息,所述第一信息指示下行最优接收天线特性或最优接收天线特性组合。
上述方案中,所述向终端发送第一信息,包括以下一个或多个:
向所述终端发送RRC信令,所述RRC信令包含所述第一信息;
向所述终端发送DCI,所述DCI包含所述第一信息;
向所述终端发送MAC CE,所述MAC CE包含所述第一信息。
一种终端,包括:第一通信接口和第一处理器;其中,第一通信接口,用于:在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发所述下一个天线端口组不同的天线特性。
一种网络设备,包括:第二通信接口和第二处理器;其中,第二通信接口,用于:接收终端在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发的所述下一个天线端口组不同的天线特性。
本公开实施例还提供了一种存储介质,其上存储有计算机程序,计算机程序被处理器执行时实现上述任一项方法的步骤。
本公开实施例还提供了一种计算机产品,包括计算机程序,所述计算机程序被处理器执行时实现上述任一方法的步骤。
本公开实施例提供的一种信息传输方法、相关设备、存储介质及计算机产品,应用于网络设备的方法包括:在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发下一个天线端口组不同的天线特性。本公开对SRS轮发方式作出改进,首先固定一个天线端口组,轮发该天线端口组内的多个天线特性;然后切换天线端口组,轮发其他天线端口组内的各种天线特性。也就是说,SRS轮发时天线端口组与每个天线端口组内的多个天线特性要共同轮发。如此,通过天线端口组与组内天线特性的共同轮发,可以让基站根据信道互易性获取下行等效信道,从而利用SRS资源完成信道探测。
图1为本公开实施例一种信息传输方法的流程示意图;
图2为本公开实施例另一种信息传输方法的流程示意图;
图3为本公开实施例一种终端侧天线连接结构的示意图;
图4为本公开实施例一种SRS时域资源配置的示意图;
图5为本公开实施例另一种终端侧天线连接结构的示意图;
图6为本公开实施例另一种SRS时域资源配置的示意图;
图7为本公开实施例一种新型多输入多输出(Multi-input Multi-output,MIMO)系统中的SRS配置的流程示意图;
图8为本公开实施例设置在终端上的信息传输装置的结构示意图;
图9为本公开实施例设置在网络设备上的信息传输装置的结构示意图;
图10为本公开实施例终端的结构示意图;
图11为本公开实施例网络设备的结构示意图。
下面结合附图及实施例对本公开再作进一步详细的描述。
信道探测是MIMO系统中的重要步骤之一,通过信道状态信息参考信号(Channel State Information-Reference Signal,CSI-RS)或SRS对无线信道进行测量,可以让发送端利用探测到的无线信道来辅助传输。其中,在时分双工(Time Division Duplexing,TDD)模式下可以通过终端发送SRS,并根据信道互易性让基站获取下行的信道状态信息(Channel State Information,CSI)情况。此时,由于硬件结构的限制与成本问题,终端侧的上下行发送天线(射频通道)数目不一样。为了探测更多的下行传输通路,需要进行上行SRS天线轮发,以便获取所有下行信道的CSI,即SRS配置中的天线切换(antenna switching)功能。
事实上,等效信道不仅包含空口传输的物理信道,也包含收发端的波束处理。特别当在一种新型MIMO系统进行信道估计时,现有协议中基于SRS天线切换的上行信道估计方案无法获得完整的等效信道。这种新型MIMO方案的主要原理是通过天线特性的动态调整配合信号的上采样等处理,实现天线特性在一个符号周期的快速变化。由于MIMO系统中多个天线间的空间信道具有方向和能量,调节阵列中天线单元间在不同时刻的物理特性,可以使天线阵列的波束指向或增益发生动态变化。这种天线特性的快速变化可以使系统等效信道随之改变,进而扩展了MIMO系统在实际数据传输过程中的空时自由度,在原有物理射频通道的基础上形成多个额外的虚拟通道。利用这些扩展的虚拟通道能够实现更多数据流接收,进而成倍提升系统的频谱效率。
当新型MIMO系统中的天线特性动态调整发生在终端侧时,会使终端侧的天线连接结构发生变化。终端侧将不再是纯数字结构,数模混合架构将有望应用于终端侧,即射频通道数将小于天线数,且每个天线与多个射频通道相连,从而使终端天线阵列产生有指向性的模拟波束,导致空间等效信道不断发生变化。当利用SRS天线轮发功能对等效信道进行估计时,需要考虑终端侧模拟波束的影响。
然而,传统MIMO系统终端侧为纯数字架构,协议在设计SRS天线轮发功能时,仅考虑了天线端口的切换,无需考虑模拟前端的影响。
为了解决上述问题,本公开提出在SRS天线轮发功能中,不仅要切换天线端口/天线端口组,还要对每个天线端口/天线端口组内的各种天线特性进行轮发,从而适配新型MIMO系统的要求。
本公开实施例提供了一种信息传输方法,应用于终端,如图1所示,该方法包括:
步骤101:在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发下一个天线端口组不同的天线特性。
实际应用时,本公开可以对SRS轮发方式作出改进,首先固定一个天线端口组,轮发该天线端口组内的多个天线特性;然后切换天线端口组,轮发其他天线端口组内的各种天线特性。也就是说,SRS轮发时天线端口组与每个天线端口组内的多个天线特性要共同轮发。如此,通过天线端口组与组内天线特性的共同轮发,可以让基站根据信道互易性获取下行等效信道,从而利用SRS资源完成信道探测。
一些实施例中,上述信息传输方法还可以包括如下步骤:
基于天线端口组的序号和每个天线端口组对应的不同天线特性的序号确定多个天线端口组,其中,一个天线端口组内任一上行射频通道相连的天线振子与一个天线端口组内其他上行射频通道相连,和/或,一个天线端口组对应的多个上行射频通道同时工作,只对应一种天线特性。
实际应用时,基于天线端口组的构成方式,一个天线端口组可以满足以下两个条件中任意一个:条件1:与组内任一上行射频通道相连的天线振子也与组内其他上行射频通道相连;条件2:该组天线端口对应的若干上行射频通道可以同时工作,且组内只对应一种固定天线特性,不可动态调整。
一个天线端口组是指与组内任一上行射频通道相连的天线振子也与组内其他上行射频通道相连(组内为全连接结构),或该组天线端口对应的若干上行射频通道可以同时工作且组内天线特性只有固定一种,不可动态调整(组内为纯数字结构)。
实际应用时,在SRS用途配置为天线轮发的情况下,终端可以在不同天线端口组序号与每个天线端口组对应的不同天线特性序号构成的各种组合间联合切换,并利用基站配置的SRS资源依次轮发。
在一个可实现的场景中,不同天线端口组与每个天线端口组内不同天线特性间的轮发,可以包括:首先由终端在当前天线端口组内利用SRS资源轮发不同天线特性,每个天线特性对应一个SRS资源,占据一个正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)符号;然后由终端在不同天线端口组间切换,利用SRS资源依次轮发其他天线端口组内的各种天线特性。
一些实施例中,天线特性可以包括天线阵列中天线单元间在不同时刻的物理特性。
实际应用时,天线特性可以包括天线阵列中天线单元间在不同时刻的物理特性,物理特性包括但不限于以下一个或多个:相位、阻抗、波束指向、天线增益、偏转角度、谐振频率、反射率、折射率。
一些实施例中,上述信息传输方法还可以包括如下步骤:
根据天线端口组的组数确定天线端口组切换的周期和SRS资源集个数,一个SRS资源集包括一个或多个SRS资源。
实际应用时,终端配置的用于天线切换的周期或半持续SRS资源集个数最多与天线端口组数相等。在SRS资源集个数与天线端口组数恰好相等的情况下,每个SRS资源集中包含的在不同OFDM符号上发送的SRS资源个数,与该资源集对应的天线端口组能产生的不同天线特性数相等。
为了支持更多天线的轮发,5G通信系统中引入了SRS资源集,并且根据终端的能力,一些终端可支持多个SRS资源集。在终端支持多个SRS资源集的情况下,多个SRS资源集可不在同一个时隙内传输,由于终端切换天线端口需要时间,因此SRS间可以考虑一定的保护间隔。
一些实施例中,在同一个SRS资源集内的多个SRS资源对应同一个天线端口组的情况下,则多个SRS资源间确定无保护间隔。也就是说,SRS轮发时保护间隔的设置可以包括:固定某个天线端口组,切换组内的天线特性时无需设置保护间隔。
实际应用时,同一个SRS资源集内的多个SRS资源间保护间隔的设置方式,可以包括:在同一个SRS资源集内的多个SRS资源对应的都是同一个天线端口组的情况下,即同一个天线端口组内的多个天线特性轮发时,则不同SRS资源间无需设置保护间隔。
一些实施例中,在同一个SRS资源集内的多个SRS资源对应的天线端口组为多个的情况下,则每个天线端口组对应的最后一个SRS资源与下一个天线端口组的第一个SRS资源间设置保护间隔。也就是说,SRS轮发时保护间隔的设置可以包括:只有在切换天线端口组的情况下才设置保护间隔。
实际应用时,同一个SRS资源集内的多个SRS资源间保护间隔的设置方式,可以包括:在同一个SRS资源集内的多个SRS资源对应超过一个天线端口组的情况下,则每一个天线端口组对应的多个SRS资源内部无需设置保护间隔,每一个天线端口组对应的最后一个SRS资源与下一个天线端口组的第一个SRS资源间需,设置不少于1个符号的保护间隔。
实际应用时,保护间隔所占据的符号数与子载波间隔有关,子载波间隔越大,保护间隔占据的符号数越多。
基于本公开提供的上述同一个SRS资源集内的多个SRS资源间保护间隔的设置方式,在一个天线端口组内的多个天线特性轮发的情况下,不需要设置保护间隔;只有在不同天线端口组切换的情况下才需要设置保护间隔,从而提高了上行资源的利用率。
一些实施例中,上述信息传输方法还可以包括如下步骤:
向网络设备发送无线资源控制RRC信令,RRC信令携带以下一个或多个:
上行射频通道数;
下行射频通道数;
天线端口组数;
每个天线端口组对应的天线特性数。
实际应用时,网络设备下发SRS资源集配置方案前,终端上报的终端能力的内容,可以包括:当终端通过RRC信令上报用户设备(User Equipment,UE)能力时,在srs-TxSwitch字段中上报若干参数的信息,包括但不限于上行射频通道数、下行射频通道数、天线端口组数、每个天线端口组对应的天线特性数。
一些实施例中,上述信息传输方法还可以包括如下步骤:
接收网络设备发送的第一信息,第一信息指示下行最优接收天线特性或最优接收天线特性组合。
实际应用时,网络设备接收终端发送的SRS后,可以将终端下行最优接收天线特性/最优接收天线特性组合通知给终端。
一些实施例中,接收网络设备发送的第一信息,可以包括以下一个或多个:
接收网络设备发送的RRC信令,RRC信令包含第一信息;
接收网络设备发送的DCI,DCI包含第一信息;
接收网络设备发送的MAC CE,MAC CE包含第一信息。
实际应用时,基站将下行最优接收天线特性/接收天线特性组合通知终端的方式,包括但不限于通过RRC信令、DCI信令、MAC CE等方式告知终端。
本公开实施例提供了一种信息传输方法,应用于网络设备,如图2所示,该方法包括:
步骤201:接收终端在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发的下一个天线端口组不同的天线特性。
实际应用时,本公开可以对SRS轮发方式作出改进,首先终端固定一个天线端口组,轮发该天线端口组内的多个天线特性;然后切换天线端口组,轮发其他天线端口组内的各种天线特性。也就是说,SRS轮发时天线端口组与每个天线端口组多个天线特性要共同轮发。如此,通过天线端口组与组内天线特性的共同轮发,基站根据信道互易性获取下行等效信道,从而利用SRS资源完成信道探测。
一些实施例中,上述信息传输方法还可以包括如下步骤:
接收终端发送的无线资源控制RRC信令,RRC信令携带以下一个或多个:
上行射频通道数;
下行射频通道数;
天线端口组数;
每个天线端口组对应的天线特性数。
实际应用时,网络设备下发SRS资源集配置方案前,终端上报的终端能力的内容,可以包括:当终端通过RRC信令上报UE能力时,在srs-TxSwitch字段中上报若干参数的信息,包括但不限于上行射频通道数、下行射频通道数、天线端口组数、每个天线端口组对应的天线特性数。网络设备收到终端上报的UE能力后,可以向终端下发周期性SRS资源集,一个SRS资源集包括一个或多个SRS资源。
一些实施例中,上述信息传输方法还可以包括如下步骤:
向终端发送第一信息,第一信息指示下行最优接收天线特性或最优接收天线特性组合。
一些实施例中,向终端发送第一信息,可以包括以下一个或多个:
向终端发送RRC信令,RRC信令包含第一信息;
向终端发送DCI,DCI包含第一信息;
向终端发送MAC CE,MAC CE包含第一信息。
实际应用时,网络设备接收终端发送的SRS后,将终端下行最优接收天线特性/接收天线特性组合通知终端的方式,包括但不限于通过RRC信令、DCI信令、MAC CE等方式告知终端。
在一个可实现的新型MIMO系统中的SRS配置场景中,某终端通过RRC信令上报UE能力时,在srs-TxSwitch字段中上报了如下参数:
1T2R;
antenna port group=1;
antenna characteristic per group=4;
即该终端的上行发送射频通道数为1,下行接收射频通道数为2,天线端口组数为1,每个天线端口组可以产生四种不同的天线特性。在本实施例中,以天线特性包括接收/发送波束指向为例进行说明。
在当前配置下,该终端的一种可能的天线连接结构可以如图3所示;在图3中,终端为全连接结构,2个射频通道(RF chain1和RF chain2)与4个天线振子相连。虽然上行传输时一次只能激活一个射频通道,但四个天线振子始终处于激活状态,因此上行只有一个天线端口组。而四个波束指向则对应该天线端口组能够产生的四种天线特性。
基站收到上述UE能力后,可以向终端下发一个周期性SRS资源集。该SRS资源集包含4个SRS资源,分别位于不同符号上,对应该4种天线特性,每个资源的SRS端口数为1个。因为终端只有一个天线端口组,因此该SRS资源集中的不同SRS资源间不需要设置保护间隔,可在4个OFDM符号上连续放置。
因此,终端侧发送SRS的时域图样可以如图4所示,图中以基站配置的SRS资源集中多个SRS资源占据一个时隙中的10-13四个符号为例进行示意。
基站接收该终端发送的上行SRS后,可以测量4个SRS资源对应的等效信道,并根据信道互易性,获取完整的下行等效信道。在终端在随后的下行新型MIMO传输过程中,需要以采样点/采样点组为周期,在两种天线特性中高速切换的情况下,则基站通过测量4个SRS资源,可以综合判断终端采用SRS资源1对应的波束1与SRS资源3对应的波束3作为最优波束组合接收下行数据,因此基站通过下行信令将最优波束组合编号1和3通知终端。
在另一个可实现的新型MIMO系统中的SRS配置场景中,某终端通过RRC信令上报UE能力时,在srs-TxSwitch字段中上报了如下参数:
1T2R;
antenna port group=2;
antenna characteristic per group=2;
即该终端的上行发送射频通道数为1,下行接收射频通道数为2,天线端口组数为2,每个天线端口组可以产生两种不同的天线特性。在本实施例中,仍以天线特性包括接收/发送波束指向为例进行说明。
在当前配置下,该终端的一种可能的天线连接结构可以如图5所示;在图5中,终端为部分连接结构,2个射频通道(RF chain1和RF chain2)各自与2个天线振子相连。上行传输时终端每次只能激活一个射频通道,相应激活与此射频通道相连的2个天线振子,因此上行有两个天线端口组。而每组内的两个波束指向则对应该天线端口组能够产生的两种天线特性。
基站收到上述UE能力后,可以向终端下发两个周期性SRS资源集,分别与两个天线端口组对应。每个SRS资源集包含2个SRS资源,分别位于不同符号上,对应该天线端口组内的两种天线特性,每个资源的SRS端口数为1个。因为终端有两个天线端口组,因此一个SRS资源集中的不同SRS资源间不需要设置保护间隔,但不同SRS资源集间需要设置保护间隔,因此该终端的SRS轮发至少需要5个符号。
因此,终端侧发送SRS的时域图样可以如图6所示,图中以该小区的对应的子载波间隔为30k,基站配置的两个SRS资源集中的4个SRS资源分别占据一个时隙中的9-10、12-13共四个符号为例进行示意。
基站接收该终端发送的上行SRS后,可以测量两个SRS资源集中4个SRS资源对应的等效信道,并根据信道互易性,获取完整的下行等效信道。在终端在随后的下行新型MIMO传输过程中,需要以采样点/采样点组为周期,在两组天线特性中高速切换的情况下,则基站通过测量4个SRS资源,可以综合判断波束1与波束3为第一个组合,波束2与波束4为第二个组合,并通过下行信令将最优波束对组合编号通知终端。
参考图7,在一个可实现的新型MIMO系统中的SRS配置流程中,可以包括如下步骤:
步骤701:终端在UE能力中上报支持m发n收,终端天线端口分为p组,每组内的天线振子产生q种天线特性。
步骤702:基站下发SRS资源集配置,将usage(用途)设置为antenna switching。
步骤703:for i=1:p,其中,i从1到p取值。
步骤704:判断是否i>1。
步骤705:在i>1成立的情况下,第i组天线端口对应的第1个SRS资源与第i-1组天线端口的最后1个SRS资源间设置y个符号的保护间隔。
步骤706:UE上第i组天线端口对应的所有天线依次产生q种天线特性,利用第i组天线端口向基站轮发SRS。
步骤707:判断是否i<p。在i<p成立的情况下,将i加1,并返回至步骤703。
步骤708:在i<p不成立的情况下,基站接收UE发送的上述所有SRS。
步骤709:判断是否q>1。
步骤710:在q>1成立的情况下,基站从每个天线端口组对应的q种天线特性组合中找出至少1个,并指示UE用于下行接收。
步骤711:在q>1不成立的情况下,基站无需指示UE下行天线接收特性变化。
步骤712:基站与UE完成下行新型MIMO数据发送与接收。
基于上述流程可知,为了支持TDD模式下的新型MIMO系统基站端获取完整的下行等效信道CSI,终端侧在进行上行SRS轮发时需首先在一个天线端口组内依次轮发各种天线特性,此时一个天线端口组内不同天线特性对应的SRS资源间不需要设置保护间隔;然后再切换成其他天线端口组,依次轮发该天线端口组内的各种天线特性,不同天线端口组之间需设置保护间隔。
本公开提出在SRS天线轮发功能中,不仅要切换天线端口/天线端口组,还要对每个天线端口/天线端口组内的各种天线特性进行轮发,从而让基站端通过SRS获取完整的下行等效信道CSI。只有基站端完整获得终端侧多个射频通道与天线特性共同切换时的不同等效信道,才能够通知终端从若干个天线特性中选取一个或多个天线特性用于下行接收。新型MIMO系统中的上述新特性都要求对SRS的天线切换功能进行修改,从而适配新型MIMO系统的要求。
由上述可知,本公开至少具有如下有益效果:通过天线端口组与组内天线特性的共同轮发,可以让基站根据信道互易性获取下行等效信道,从而利用SRS资源完成信道探测。在同一个天线端口组内的多个天线特性轮发的情况下,不需要设置保护间隔;只有在不同天线端口组切换的情况下才需要设置保护间隔,从而提高了上行资源的利用率。在天线端口组表示全连接结构的情况下,即使该天线端口组中的所有上行射频通道无法同时工作,也只需轮发一次天线特性即可,无需在天线端口组内切换上行射频通道,再重新轮发天线特性。与现有协议下工作的终端兼容。对于当前常见的纯数字终端(天线数与通道数相等,一对一连接),如1T2R,可以认为该终端的天线端口组数为2,每个天线端口组内的天线特性数为1,因此纯数字终端仍然能够在新的SRS配置下实现轮发,从而实现后向兼容。
实际应用时,终端可以是指向用户提供语音和/或数据连通性的设备。终端可以经无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信,终端可以是物联网用户设备(User Equipment,UE),如传感器设备、移动电话和具有物联网UE的计算机,例如,可以是固定式、便携式、袖珍式、手持式、计算机内置的或者车载的装置。例如,站(Station,STA)、订户单元(subscriber unit)、订户站(subscriber station)、移动站(mobilestation)、移动台(mobile)、远程站(remote station)、接入点、用户装置(user terminal)、用户代理(useragent)。或者,终端也可以是无人飞行器的设备。或者,终端也可以是车载设备,比如,可以是具有无线通信功能的行车电脑,或者是外接行车电脑的无线通信设备。或者,终端也可以是路边设备,比如,可以是具有无线通信功能的路灯、信号灯或者其它路边设备等。
实际应用时,网络设备可以是无线通信系统中用于与终端进行通信的设备。其中,该无线通信系统可以是第四代移动通信技术(the 4th generation mobile communication,4G)系统,又称长期演进(Long Term Evolution,LTE)系统;或者,该无线通信系统也可以是5G系统,又称新空口(new radio,NR)系统或5G NR系统。或者,该无线通信系统也可以是5G系统的再下一代系统。其中,5G系统中的接入网可以称为新一代无线接入网(New Generation-RadioAccess Network,NG-RAN)。
实际应用时,网络设备可以称为无线接入网设备,例如包括接入网设备,例如基站(例如,接入点),可以是指接入网中在空口通过一个或多个小区与终端通信的设备。
实际应用时,网络设备可以是4G系统中采用的演进型接入设备(eNB)。或者,网络设备也可以是5G系统中采用集中分布式架构的接入设备(gNB)。在网络设备采用集中分布式架构的情况下,通常包括集中单元(central unit,CU)和至少两个分布单元(distributedunit,DU)。集中单元中设置有分组数据汇聚协议(Packet Data Convergence Protocol,PDCP)层、无线链路层控制协议(Radio Link Control,RLC)层、媒体访问控制(MediaAccess Control,MAC)层的协议栈;分布单元中设置有物理(Physical,PHY)层协议栈,本公开实施例对网络设备的具体实现方式不加以限定。
实际应用时,网络设备和终端之间可以通过无线空口建立无线连接。在不同的实施方式中,该无线空口可以是基于4G标准的无线空口;或者,该无线空口可以是基于5G标准的无线空口,比如该无线空口是新空口;或者,该无线空口也可以是基于5G的更下一代移动通信网络技术标准的无线空口。
为了实现本公开实施例终端侧的方法,本公开实施例还提供了一种信息传输装置,可以设置在终端上,如图8所示,该装置包括:
第一发送单元801,用于在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发下一个天线端口组不同的天线特性。
一些实施例中,该装置还包括:第一处理单元802,用于基于天线端口组的序号和每个天线端口组对应的不同天线特性的序号确定多个天线端口组,其中,一个天线端口组内任一上行射频通道相连的天线振子与一个天线端口组内其他上行射频通道相连,和/或,一个天线端口组对应的多个上行射频通道同时工作,只对应一种天线特性。
一些实施例中,天线特性包括天线阵列中天线单元间在不同时刻的物理特性。
一些实施例中,第一处理单元802,用于根据天线端口组的组数确定天线端口组切换的周期和SRS资源集个数,一个SRS资源集包括一个或多个SRS资源。
一些实施例中,在同一个SRS资源集内的多个SRS资源对应同一个天线端口组的情况下,则多个SRS资源间确定无保护间隔。
一些实施例中,在同一个SRS资源集内的多个SRS资源对应的天线端口组为多个的情况下,则每个天线端口组对应的最后一个SRS资源与下一个天线端口组的第一个SRS资源间设置保护间隔。
一些实施例中,第一发送单元801,用于向网络设备发送无线资源控制RRC信令,RRC信令携带以下一个或多个:上行射频通道数;下行射频通道数;天线端口组数;每个天线端口组对应的天线特性数。
一些实施例中,该装置还包括:第一接收单元803,用于接收网络设备发送的第一信息,第一信息指示下行最优接收天线特性或最优接收天线特性组合。
一些实施例中,第一接收单元803,用于执行以下一个或多个:接收网络设备发送的RRC信令,RRC信令包含第一信息;接收网络设备发送的DCI,DCI包含第一信息;接收网络设备发送的MAC CE,MAC CE包含第一信息。
实际应用时,第一处理单元802可由终端中的处理器实现;第一发送单元801和第一接收单元803可由终端中的通信接口实现。
为了实现本公开实施例网络设备侧的方法,本公开实施例还提供了一种信息传输装置,可以设置在网络设备上,如图9所示,该装置包括:
第二接收单元901,用于接收终端在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发的下一个天线端口组不同的天线特性。
一些实施例中,第二接收单元901,用于接收终端发送的无线资源控制RRC信令,RRC信令携带以下一个或多个:上行射频通道数;下行射频通道数;天线端口组数;每个天线端口组对应的天线特性数。
一些实施例中,该装置还包括:第二发送单元902,用于向终端发送第一信息,第一信息指示下行最优接收天线特性或最优接收天线特性组合。
一些实施例中,第二发送单元902,用于执行以下一个或多个:向终端发送RRC信令,RRC信令包含第一信息;或者,向终端发送DCI,DCI包含第一信息;或者,向终端发送MAC CE,MAC CE包含第一信息。
实际应用时,第二接收单元901和第二发送单元902可由网络设备中的通信接口实现。
为了实现本公开实施例终端侧的方法,本公开实施例还提供了一种终端,如图10所示,该终端1000包括:第一通信接口1001和第一处理器1002;其中,
第一通信接口1001,能够与网络设备进行信息交互;
第一处理器1002,与第一通信接口1001连接,以实现与网络设备进行信息交互,用于运行计算机程序时,执行上述终端侧一个或多个技术方案提供的方法;
第一存储器1003,存储能够在第一处理器1002上运行的计算机程序。
其中,第一通信接口1001,用于在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发下一个天线端口组不同的天线特性。
一些实施例中,第一处理器1002,用于基于天线端口组的序号和每个天线端口组对应的不同天线特性的序号确定多个天线端口组,其中,一个天线端口组内任一上行射频通道相连的天线振子与一个天线端口组内其他上行射频通道相连,和/或,一个天线端口组对应的多个上行射频通道同时工作,只对应一种天线特性。
一些实施例中,天线特性包括天线阵列中天线单元间在不同时刻的物理特性。
一些实施例中,第一处理器1002,用于根据天线端口组的组数确定天线端口组切换的周期和SRS资源集个数,一个SRS资源集包括一个或多个SRS资源。
一些实施例中,在同一个SRS资源集内的多个SRS资源对应同一个天线端口组的情况下,则多个SRS资源间确定无保护间隔。
一些实施例中,在同一个SRS资源集内的多个SRS资源对应的天线端口组为多个的情况下,则每个天线端口组对应的最后一个SRS资源与下一个天线端口组的第一个SRS资源间设置保护间隔。
一些实施例中,第一通信接口1001,用于向网络设备发送无线资源控制RRC信令,RRC信令携带以下一个或多个:上行射频通道数;下行射频通道数;天线端口组数;每个天线端口组对应的天线特性数。
一些实施例中,第一通信接口1001,用于接收网络设备发送的第一信息,第一信息指示下行最优接收天线特性或最优接收天线特性组合。
一些实施例中,第一通信接口1001,用于接收网络设备发送的第一信息,包括以下一个或多个:
接收网络设备发送的RRC信令,RRC信令包含第一信息;
接收网络设备发送的DCI,DCI包含第一信息;
接收网络设备发送的MAC CE,MAC CE包含第一信息。
需要说明的是:第一通信接口1001和第一处理器1002的具体处理过程可参照上述方法理解,这里不再赘述。
当然,实际应用时,终端1000中的各个组件通过第一总线系统1004耦合在一起。可理解,第一总线系统1004用于实现这些组件之间的连接通信。第一总线系统1004除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图10中将各种总线都标为第一总线系统1004。
本公开实施例中的第一存储器1003用于存储各种类型的数据以支持终端1000的操作。这些数据的示例包括:用于在终端1000上操作的任何计算机程序。
上述本公开实施例揭示的方法可以应用于第一处理器1002中,或者由第一处理器1002实现。第一处理器1002可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过第一处理器1002中的硬件的集成逻辑电路或者软件形式的指令完成。上述的第一处理器1002可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP),或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。第一处理器1002可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本公开实施例所公开的方法的步骤,可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中,该存储介质位于第一存储器1003,第一处理器1002读取第一存储器1003中的信息,结合其硬件完成前述方法的步骤。
在示例性实施例中,终端1000可以被一个或多个应用专用集成电路(Application Specific Integrated Circuit,ASIC)、DSP、可编程逻辑器件(Programmable Logic Device,PLD)、复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器(Micro Controller Unit,MCU)、微处理器(Microprocessor)、或者其它电子元件实现,用于执行前述方法。
为了实现本公开实施例网络设备侧的方法,本公开实施例还提供了一种网络设备,如图11所示,该网络设备1100包括:第二通信接口1101和第二处理器1102;其中,
第二通信接口1101,能够与网络设备进行信息交互;
第二处理器1102,与第二通信接口1101连接,以实现与终端进行信息交互,用于运行计算机程序时,执行上述网络设备侧一个或多个技术方案提供的方法;
第二存储器1103,存储能够在第二处理器1102上运行的计算机程序。
其中,第二通信接口1101,用于接收终端在天线端口组中确定当前天线端口组,在当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发的下一个天线端口组不同的天线特性。
一些实施例中,第二通信接口1101,用于接收终端发送的无线资源控制RRC信令,RRC信令携带以下一个或多个:上行射频通道数;下行射频通道数;天线端口组数;每个天线端口组对应的天线特性数。
一些实施例中,第二通信接口1101,用于向终端发送第一信息,第一信息指示下行最优接收天线特性或最优接收天线特性组合。
一些实施例中,第二通信接口1101,用于向终端发送第一信息,包括以下一个或多个:向终端发送RRC信令,RRC信令包含第一信息;向终端发送DCI,DCI包含第一信息;向终端发送MAC CE,MAC CE包含第一信息。
需要说明的是:第二通信接口1101和第二处理器1102的具体处理过程可参照上述方法理解,这里不再赘述。
当然,实际应用时,网络设备1100中的各个组件通过第二总线系统1104耦合在一起。可理解,第二总线系统1104用于实现这些组件之间的连接通信。第二总线系统1104除包括数据总线之外,还包括电源总线、控制总线和状态信号总线。但是为了清楚说明起见,在图11中将各种总线都标为第二总线系统1104。
本公开实施例中的第二存储器1103用于存储各种类型的数据以支持网络设备1100的操作。这些数据的示例包括:用于在网络设备1100上操作的任何计算机程序。
上述本公开实施例揭示的方法可以应用于第二处理器1102中,或者由第二处理器1102实现。第二处理器1102可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法的各步骤可以通过第二处理器1102中的硬件的集成逻辑电路或者软件形式的指令完成。上述的第二处理器1102可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP),或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。第二处理器1102可以实现或者执行本公开实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本公开实施例所公开的方法的步骤,可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于存储介质中,该存储介质位于第二存储器1103,第二处理器1102读取第二存储器1103中的信息,结合其硬件完成前述方法的步骤。
在示例性实施例中,网络设备1100可以被一个或多个应用专用集成电路(Application Specific Integrated Circuit,ASIC)、DSP、可编程逻辑器件(Programmable Logic Device,PLD)、复杂可编程逻辑器件(Complex Programmable Logic Device,CPLD)、现场可编程门阵列(Field-Programmable Gate Array,FPGA)、通用处理器、控制器、微控制器(Micro Controller Unit,MCU)、微处理器(Microprocessor)、或者其它电子元件实现,用于执行前述方法。
在示例性实施例中,用户终端可以被一个或多个ASIC、DSP、PLD、CPLD、FPGA、通用处理器、控制器、MCU、微处理器(Microprocessor)、或其他电子元件实现,用于执行前述方法。
可以理解,本公开实施例的存储器可以是易失性存储器或者非易失性存储器,也可包括易失性和非易失性存储器两者。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 Read-Only Memory,PROM)、可擦除可编程只读存储器(Erasable Programmable Read-Only Memory,EPROM)、电可擦除可编程只读存储器(Electrically Erasable Programmable Read-Only Memory,EEPROM)、磁性随机存取存储器(ferromagnetic random access memory,FRAM)、快闪存储器(Flash Memory)、磁表面存储器、光盘、或只读光盘(Compact Disc Read-Only Memory,CD-ROM);磁表面存储器可以是磁盘存储器或磁带存储器。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static Random Access Memory,SRAM)、同步静态随机存取存储器(Synchronous Static Random Access Memory,SSRAM)、动态随机存取存储器(Dynamic Random Access Memory,DRAM)、同步动态随机存取存储器(Synchronous Dynamic Random Access Memory,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate Synchronous Dynamic Random Access Memory,DDRSDRAM)、增强型同步动态随机存取存储器(Enhanced Synchronous Dynamic Random Access Memory,ESDRAM)、同步连接动态随机存取存储器(Sync Link Dynamic Random Access Memory,SLDRAM)、直接内存总线随机存取存储器(Direct Rambus Random Access Memory,DRRAM)。本公开实施例描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
在示例性实施例中,本公开实施例还提供了一种存储介质,即计算机存储介质,具体为计算机可读存储介质,例如包括存储计算机程序的第一存储器1003,上述计算机程序可由终端1000的第一处理器1002执行,以完成前述终端侧的上述方法的步骤。再比如包括存储计算机程序的第二存储器1103,上述计算机程序可由网络设备1100的第二处理器1102执行,以完成前述网络设备侧的上述方法的步骤。计算机可读存储介质可以是FRAM、ROM、PROM、EPROM、EEPROM、Flash Memory、磁表面存储器、光盘、或CD-ROM等存储器。
在示例性实施例中,本公开实施例还提供了一种计算机产品,包括计算机程序,所述计算机程序可由终端1000的第一处理器1002执行,以完成前述终端侧的上述方法的步骤。再比如上述计算机程序可由网络设备1100的第二处理器1102执行,以完成前述网络设备侧的上述方法的步骤。
需要说明的是:“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。
另外,本公开实施例所记载的技术方案之间,在不冲突的情况下,可以任意组合。
以上所述,仅为本公开的较佳实施例而已,并非用于限定本公开的保护范围。
Claims (17)
- 一种信息传输方法,应用于终端,包括:在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发所述下一个天线端口组不同的天线特性。
- 根据权利要求1的方法,还包括:基于天线端口组的序号和每个天线端口组对应的不同天线特性的序号确定多个天线端口组,其中,一个天线端口组内任一上行射频通道相连的天线振子与所述一个天线端口组内其他上行射频通道相连,和/或,所述一个天线端口组对应的多个上行射频通道同时工作,只对应一种天线特性。
- 根据权利要求1或2的方法,其中,所述天线特性包括天线阵列中天线单元间在不同时刻的物理特性。
- 根据权利要求1-3中任一项的方法,还包括:根据所述天线端口组的组数确定天线端口组切换的周期和SRS资源集个数,一个SRS资源集包括一个或多个SRS资源。
- 根据权利要求4的方法,其中,在同一个SRS资源集内的多个SRS资源对应同一个天线端口组的情况下,则所述多个SRS资源间确定无保护间隔。
- 根据权利要求4的方法,其中,在同一个SRS资源集内的多个SRS资源对应的天线端口组为多个的情况下,则每个天线端口组对应的最后一个SRS资源与下一个天线端口组的第一个SRS资源间设置保护间隔。
- 根据权利要求1-6中任一项的方法,还包括:向网络设备发送无线资源控制RRC信令,所述RRC信令携带以下一个或多个:上行射频通道数;下行射频通道数;天线端口组数;每个天线端口组对应的天线特性数。
- 根据权利要求1-7中任一项的方法,还包括:接收网络设备发送的第一信息,所述第一信息指示下行最优接收天线特性或最优接收天线特性组合。
- 根据权利要求8的方法,其中,所述接收网络设备发送的第一信息,包括以下一个或多个:接收所述网络设备发送的RRC信令,所述RRC信令包含所述第一信息;接收所述网络设备发送的下行控制信息DCI,所述DCI包含所述第一信息;接收所述网络设备发送的媒体接入控制MAC控制元素CE,所述MAC CE包含所述第一信息。
- 一种信息传输方法,应用于网络设备,包括:接收终端在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发的所述下一个天线端口组不同的天线特性。
- 根据权利要求10的方法,还包括:接收终端发送的无线资源控制RRC信令,所述RRC信令携带以下一个或多个:上行射频通道数;下行射频通道数;天线端口组数;每个天线端口组对应的天线特性数。
- 根据权利要求10或11的方法,还包括:向终端发送第一信息,所述第一信息指示下行最优接收天线特性或最优接收天线特性组合。
- 根据权利要求12的方法,其中,所述向终端发送第一信息,包括以下一个或多个:向所述终端发送RRC信令,所述RRC信令包含所述第一信息;向所述终端发送DCI,所述DCI包含所述第一信息;向所述终端发送MAC CE,所述MAC CE包含所述第一信息。
- 一种终端,包括:第一通信接口和第一处理器;其中,第一通信接口,用于:在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发所述下一个天线端口组不同的天线特性。
- 一种网络设备,包括:第二通信接口和第二处理器;其中,第二通信接口,用于:接收终端在天线端口组中确定当前天线端口组,在所述当前天线端口组内利用探测参考信号SRS资源轮发不同的天线特性之后,将当前天线端口组切换为下一个天线端口组,利用SRS资源轮发的所述下一个天线端口组不同的天线特性。
- 一种存储介质,其上存储有计算机程序,其中,计算机程序被处理器执行时实现权利要求1至9任一项方法的步骤,或者实现权利要求10至13任一项方法的步骤。
- 一种计算机产品,包括计算机程序,其中,所述计算机程序被处理器执行时实现权利要求1至9任一项方法的步骤,或者实现权利要求10至13任一项方法的步骤。
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