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WO2022147645A1 - Système et procédé d'émission de signal de référence de sondage - Google Patents

Système et procédé d'émission de signal de référence de sondage Download PDF

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Publication number
WO2022147645A1
WO2022147645A1 PCT/CN2021/070258 CN2021070258W WO2022147645A1 WO 2022147645 A1 WO2022147645 A1 WO 2022147645A1 CN 2021070258 W CN2021070258 W CN 2021070258W WO 2022147645 A1 WO2022147645 A1 WO 2022147645A1
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WIPO (PCT)
Prior art keywords
implementations
allocation
offset
determining
time
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PCT/CN2021/070258
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English (en)
Inventor
Yuxin Wang
Zhaohua Lu
Hao Wu
Chuangxin JIANG
Original Assignee
Zte Corporation
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Publication date
Application filed by Zte Corporation filed Critical Zte Corporation
Priority to CN202180085569.0A priority Critical patent/CN116803126A/zh
Priority to PCT/CN2021/070258 priority patent/WO2022147645A1/fr
Publication of WO2022147645A1 publication Critical patent/WO2022147645A1/fr

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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
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/26035—Maintenance of orthogonality, e.g. for signals exchanged between cells or users, or by using covering codes or sequences
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H04L27/26132—Structure of the reference signals using repetition

Definitions

  • the disclosure relates generally to wireless communications and, more particularly, to systems and methods for sounding reference signal (SRS) transmission.
  • SRS sounding reference signal
  • Wireless communication service covers more and more application scenarios, with the increasing degree of social digitization.
  • enhanced mobile broadband, ultra-reliable and low latency communication and massive machine type of communication have become three major scenarios supported by fifth generation (5G) systems.
  • 5G fifth generation
  • conventional systems may not effectively mitigate interference from power boosting of user equipment (UE) associated with sounding reference signal (SRS) transmissions.
  • SRS sounding reference signal
  • example implementations disclosed herein are directed to solving the issues relating to one or more of the problems presented in the prior art, as well as providing additional features that will become readily apparent by reference to the following detailed description when taken in conjunction with the accompany drawings.
  • example systems, methods, devices and computer program products are disclosed herein. It is understood, however, that these implementations are presented by way of example and are not limiting, and it will be apparent to those of ordinary skill in the art who read the present disclosure that various modifications to the disclosed implementations can be made while remaining within the scope of this disclosure.
  • a method performed by a wireless communication device includes receiving, by a wireless communication device from a wireless communication node, information that configures a plurality of resources, wherein an allocation of a portion of the resources is configured based on a repetition number of the reference signals within a slot and a resource block (RB) offset, and sending, by the wireless communication device to the wireless communication node, a plurality of reference signals using the portion of the resources.
  • RB resource block
  • a method performed by a wireless communication node includes sending, by a wireless communication node to a wireless communication device, information that configures a plurality of resources, wherein an allocation of a portion of the resources is configured based on a repetition number of the reference signals within a slot and a resource block (RB) offset, and receiving, by the wireless communication node from the wireless communication device, a plurality of reference signals using the portion of the resources.
  • RB resource block
  • Figure 1 illustrates an example cellular communication network in which techniques and other aspects disclosed herein may be implemented, in accordance with an implementation of the present disclosure.
  • Figure 2 illustrates block diagrams of an example base station and a user equipment device, in accordance with some implementations of the present disclosure.
  • Figure 3A illustrates a first example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • SRS sounding reference signal
  • FIG. 3B illustrates a second example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • SRS sounding reference signal
  • FIG. 3C illustrates a third example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • SRS sounding reference signal
  • FIG. 3D illustrates a fourth example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • SRS sounding reference signal
  • Figure 4A illustrates a first example cyclic shift hopping configuration associated with an example time period, in accordance with some implementations of the present disclosure.
  • Figure 4B illustrates a second example cyclic shift hopping configuration associated with an example time period, in accordance with some implementations of the present disclosure.
  • Figure 4C illustrates a third example cyclic shift hopping configuration associated with an example time period, in accordance with some implementations of the present disclosure.
  • FIG. 5 illustrates an example method for sounding reference signal (SRS) transmission, in accordance with present implementations.
  • SRS sounding reference signal
  • FIG. 6 illustrates an example method for sounding reference signal (SRS) transmission further to the example method of Figure 5.
  • SRS sounding reference signal
  • FIG 7 illustrates an example method for sounding reference signal (SRS) transmission further to the example method of Figure 5.
  • SRS sounding reference signal
  • FIG 8 illustrates an example method for sounding reference signal (SRS) transmission further to the example method of Figures 6 and 7.
  • SRS sounding reference signal
  • FIG. 9 illustrates a further example method for sounding reference signal (SRS) transmission, in accordance with present implementations.
  • SRS sounding reference signal
  • FIG. 1 illustrates an example wireless communication network, and/or system, 100 in which techniques disclosed herein may be implemented, in accordance with an implementation of the present disclosure.
  • the wireless communication network 100 may be any wireless network, such as a cellular network or a narrowband Internet of things (NB-IoT) network, and is herein referred to as “network 100. ”
  • Such an example network 100 includes a base station 102 (hereinafter “BS 102” ) and a user equipment device 104 (hereinafter “UE 104” ) that can communicate with each other via a communication link 110 (e.g., a wireless communication channel) , and a cluster of cells 126, 130, 132, 134, 136, 138 and 140 overlaying a geographical area 101.
  • BS 102 base station 102
  • UE 104 user equipment device
  • the BS 102 and UE 104 are contained within a respective geographic boundary of cell 126.
  • Each of the other cells 130, 132, 134, 136, 138 and 140 may include at least one base station operating at its allocated bandwidth to provide adequate radio coverage to its intended users.
  • the BS 102 may operate at an allocated channel transmission bandwidth to provide adequate coverage to the UE 104.
  • the BS 102 and the UE 104 may communicate via a downlink radio frame 118, and an uplink radio frame 124 respectively.
  • Each radio frame 118/124 may be further divided into sub-frames 120/127 which may include data symbols 122/128.
  • the BS 102 and UE 104 are described herein as non-limiting examples of “communication nodes, ” generally, which can practice the methods disclosed herein. Such communication nodes may be capable of wireless and/or wired communications, in accordance with various implementations of the present solution.
  • Figure 2 illustrates a block diagram of an example wireless communication system 200 for transmitting and receiving wireless communication signals, e.g., OFDM/OFDMA signals, in accordance with some implementations of the present solution.
  • the system 200 may include components and elements configured to support known or conventional operating features that need not be described in detail herein.
  • system 200 can be used to communicate (e.g., transmit and receive) data symbols in a wireless communication environment such as the wireless communication environment 100 of Figure 1, as described above.
  • the System 200 generally includes a base station 202 (hereinafter “BS 202” ) and a user equipment device 204 (hereinafter “UE 204” ) .
  • the BS 202 includes a BS (base station) transceiver module 210, a BS antenna 212, a BS processor module 214, a BS memory module 216, and a network communication module 218, each module being coupled and interconnected with one another as necessary via a data communication bus 220.
  • the UE 204 includes a UE (user equipment) transceiver module 230, a UE antenna 232, a UE memory module 234, and a UE processor module 236, each module being coupled and interconnected with one another as necessary via a data communication bus 240.
  • the BS 202 communicates with the UE 204 via a communication channel 250, which can be any wireless channel or other medium suitable for transmission of data as described herein.
  • system 200 may further include any number of modules other than the modules shown in Figure 2.
  • modules other than the modules shown in Figure 2.
  • Those skilled in the art will understand that the various illustrative blocks, modules, circuits, and processing logic described in connection with the implementations disclosed herein may be implemented in hardware, computer-readable software, firmware, or any practical combination thereof. To clearly illustrate this interchangeability and compatibility of hardware, firmware, and software, various illustrative components, blocks, modules, circuits, and steps are described generally in terms of their functionality. Whether such functionality is implemented as hardware, firmware, or software can depend upon the particular application and design constraints imposed on the overall system. Those familiar with the concepts described herein may implement such functionality in a suitable manner for each particular application, but such implementation decisions should not be interpreted as limiting the scope of the present disclosure.
  • the UE transceiver 230 may be referred to herein as an "uplink" transceiver 230 that includes a radio frequency (RF) transmitter and a RF receiver each comprising circuitry that is coupled to the antenna 232.
  • a duplex switch (not shown) may alternatively couple the uplink transmitter or receiver to the uplink antenna in time duplex fashion.
  • the BS transceiver 210 may be referred to herein as a "downlink" transceiver 210 that includes a RF transmitter and a RF receiver each comprising circuity that is coupled to the antenna 212.
  • a downlink duplex switch may alternatively couple the downlink transmitter or receiver to the downlink antenna 212 in time duplex fashion.
  • the operations of the two transceiver modules 210 and 230 can be coordinated in time such that the uplink receiver circuitry is coupled to the uplink antenna 232 for reception of transmissions over the wireless transmission link 250 at the same time that the downlink transmitter is coupled to the downlink antenna 212. In some implementations, there is close time synchronization with a minimal guard time between changes in duplex direction.
  • the UE transceiver 230 and the base station transceiver 210 are configured to communicate via the wireless data communication link 250, and cooperate with a suitably configured RF antenna arrangement 212/232 that can support a particular wireless communication protocol and modulation scheme.
  • the UE transceiver 210 and the base station transceiver 210 are configured to support industry standards such as the Long Term Evolution (LTE) and emerging 5G standards, and the like. It is understood, however, that the present disclosure is not necessarily limited in application to a particular standard and associated protocols. Rather, the UE transceiver 230 and the base station transceiver 210 may be configured to support alternate, or additional, wireless data communication protocols, including future standards or variations thereof.
  • the BS 202 may be an evolved node B (eNB) , a serving eNB, a target eNB, a femto station, or a pico station, for example.
  • the UE 204 may be embodied in various types of user devices such as a mobile phone, a smart phone, a personal digital assistant (PDA) , tablet, laptop computer, wearable computing device, etc.
  • PDA personal digital assistant
  • the processor modules 214 and 236 may be implemented, or realized, with a general purpose processor, a content addressable memory, a digital signal processor, an application specific integrated circuit, a field programmable gate array, any suitable programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof, designed to perform the functions described herein.
  • a processor may be realized as a microprocessor, a controller, a microcontroller, a state machine, or the like.
  • a processor may also be implemented as a combination of computing devices, e.g., a combination of a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other such configuration.
  • the steps of a method or algorithm described in connection with the implementations disclosed herein may be embodied directly in hardware, in firmware, in a software module executed by processor modules 214 and 236, respectively, or in any practical combination thereof.
  • the memory modules 216 and 234 may be realized as RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
  • memory modules 216 and 234 may be coupled to the processor modules 210 and 230, respectively, such that the processors modules 210 and 230 can read information from, and write information to, memory modules 216 and 234, respectively.
  • the memory modules 216 and 234 may also be integrated into their respective processor modules 210 and 230.
  • the memory modules 216 and 234 may each include a cache memory for storing temporary variables or other intermediate information during execution of instructions to be executed by processor modules 210 and 230, respectively.
  • Memory modules 216 and 234 may also each include non-volatile memory for storing instructions to be executed by the processor modules 210 and 230, respectively.
  • the network communication module 218 generally represents the hardware, software, firmware, processing logic, and/or other components of the base station 202 that enable bi-directional communication between base station transceiver 210 and other network components and communication nodes configured to communication with the base station 202.
  • network communication module 218 may be configured to support internet or WiMAX traffic.
  • network communication module 218 provides an 802.3 Ethernet interface such that base station transceiver 210 can communicate with a conventional Ethernet based computer network.
  • the network communication module 218 may include a physical interface for connection to the computer network (e.g., Mobile Switching Center (MSC) ) .
  • MSC Mobile Switching Center
  • sounding reference signal is used for measuring channel state information (CSI) of a channel between a communication node and a communication terminal device.
  • CSI channel state information
  • a communication terminal device regularly transmits an uplink (UL) SRS on the last data symbol of a sub-frame.
  • the communication terminal device transmits the UL SRS based at least partially on parameters indicated by the communication node. As one example, these parameters can be associated with one or more of a frequency band, a frequency domain position, a sequence cyclic shift, a period, a sub-frame offset, and the like.
  • a communication node determines CSI for one or more corresponding UL channels of the user equipment (UE) based on the received TTT (STS) , and performs operations according to the determined CSI.
  • these operations can include one or more of frequency selection scheduling and close-loop power control, and the like.
  • various protocols include but are not limited to one or more protocols associated with LTE.
  • LTE can include LTE release 10.
  • non-precoding SRS are used in UL communications.
  • UL communications can include an. antenna dedicated SRS.
  • a de-modulation reference signal (DMRS) of a physical UL shared channel (PUSCH) performs precoding.
  • DMRS de-modulation reference signal
  • the communication node is able to estimate an original CSI.
  • an original CSI cannot be acquired based on the precoding DMRS.
  • the communication terminal device requires more SRS resources when using multiple antennas to transmit non-precoding SRSs.
  • the number of communication terminal devices simultaneously multiplexing in the system decreases as a result.
  • the communication terminal device transmits the SRS configured by higher layer signaling or downlink control information (DCI) .
  • higher layer signaling can be or include a type-0 trigger.
  • DCI can be or include a type-1 trigger.
  • one or more SRS transmissions configured by the higher layer signaling are periodic and one or more SRS transmissions configured by the DCI are aperiodic.
  • usage of SRS can be classified into four categories. In some implementations, the four categories are beam management, codebook based, non-codebook-based, and antenna switching. It is to be understood that various further protocols include but are not limited to one or more protocols associated with new radio (NR) release 15.
  • NR new radio
  • NR supports beam indication by informing at least one UE that a certain PDSCH and/or PDCCH transmission uses the same transmission beam as a configured reference signal.
  • a configured reference signal is or includes CSI-RS or SS block.
  • NR supports informing the device that a certain PDSCH and/or PDCCH is transmitted using the same spatial filter as the configured reference signal.
  • beam indication is based on a configuration and downlink signaling of Transmission Configuration Indication (TCI) states.
  • TCI Transmission Configuration Indication
  • each TCI state includes at least information about a reference signal. As one example, the information can be associated with at least one of a CSI-RS or an SS block.
  • the network informs the device that the device can assume that the downlink transmission is done using the same spatial filter as the reference signal associated with that TCI.
  • the TCI is associated with at least one of a PDCCH or PDSCH.
  • Figures 3A-D illustrate a plurality of SRS coverage configurations in accordance with present implementations.
  • the technique of repetition and partial frequency SRS transmission can be considered jointly.
  • a UE can conduct power boosting to enhance, extend, or the like, SRS coverage.
  • power boosting introduces strong interference to UE of neighbour cells.
  • frequency hopping of partial frequency sounding is used to reduce interference between cells.
  • RB-level partial frequency sounding can be used.
  • SRS_RB_offset is defined as an RB level offset for the frequency hopping of RB-level partial frequency sounding.
  • the repetition factor of SRS is greater than or equal to 4.
  • SRS_RB_offset is changed circularly when UE transmit partial frequency SRS during the time of symbol based repetition and intra slot or inter slot frequency hopping.
  • SRS_RB_offset is otherwise kept the same.
  • the repetition factor of SRS is less than or equal to 2.
  • a UE performs SRS frequency hopping, and SRS_RB_offset is kept the same during the time of symbol based repetition.
  • SRS_RB_offset is otherwise changed circularly.
  • the repetition factor of SRS is less than 4.
  • the UE forgoes, blocks, or the like, performing intra-slot or inter-slot SRS frequency hopping, and when the SRS periodicity is less than a threshold value, SRS_RB_offset is changed circularly.
  • SRS_RB_offset is kept the same when the SRS periodicity is not less than a threshold value and the UE forgoes, blocks, or the like, performing intra-slot or inter-slot SRS frequency hopping.
  • the SRS periodicity is less than a threshold value.
  • the SRS_RB_offset is changed circularly.
  • SRS_RB_offset is kept the same when the SRS periodicity is not less than the threshold value.
  • the SRS periodicity is greater than a threshold value.
  • SRS_RB_offset is changed circularly.
  • SRS_RB_offset is kept the same when the SRS periodicity is now greater than the threshold value.
  • FIG. 3A illustrates a first example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • a first example sounding reference signal (SRS) offset configuration 300A includes a first at least one resource block (RB) 310A, a second at least one RB 312A, a third at least one RB 314A, and a fourth at least one RB 316A.
  • the second RB 312A is at least partially, within, associated with, or the like, at least one first frequency.
  • the third RB 314A is at least partially, within, associated with, or the like, at least one second frequency greater than the first frequency.
  • the first RB 310A is at least partially, within, associated with, or the like, at least one third frequency greater than the second frequency.
  • the fourth RB 316A is at least partially, within, associated with, or the like, at least one fourth frequency greater than the third frequency.
  • the first RB 310A and the fourth RB 316A are associated with a first time period 302.
  • the first time period 302 is associated with a time of symbol based repetition.
  • the second RB 312A and the third RB 314A are associated with a second time period 304.
  • the second time period 304 is associated with a time of inter slot frequency hopping.
  • each of the RBs 310A, 312A, 314A and 316A include a first SRS_RB_offset configuration including a first block region 320A and a second block region 322A.
  • the first block region 320A is associated with at least one SRS transmission.
  • the second block region 322A is not associated with at least one SRS transmission.
  • the first SRS_RB_offset configurations is the same when the UE transmits at least one partial frequency SRS during the time of symbol based repetition and the time of intra slot or inter slot frequency hopping.
  • FIG. 3B illustrates a second example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • a second example sounding reference signal (SRS) offset configuration 300B includes a first at least one RB 310B, a second at least one RB 312B, a third at least one RB 314B, and a fourth at least one RB 316B.
  • the second RB 312B is at least partially, within, associated with, or the like, at least one first frequency.
  • the third RB 314B is at least partially, within, associated with, or the like, at least one second frequency greater than the first frequency.
  • the first RB 310B is at least partially, within, associated with, or the like, at least one third frequency greater than the second frequency.
  • the fourth RB 316B is at least partially, within, associated with, or the like, at least one fourth frequency greater than the third frequency.
  • the first RB 310B and the fourth RB 316B are associated with the first time period 302.
  • the second RB 312B and the third RB 314B are associated with the second time period 304.
  • each of the RBs 310B, 312B, 314B and 316B include a second SRS_RB_offset configuration including a first block region 320B and a second block region 322B.
  • the first block region 320B is associated with at least one SRS transmission. In some implementations, the second block region 322B is not associated with at least one SRS transmission. In some implementations, the second SRS_RB_offset configuration changes circularly, cyclically, or the like, when the UE transmits at least one partial frequency SRS during the time of symbol based repetition and intra slot or inter slot frequency hopping. In some implementations, the granularity of the changed SRS_RB_offset of the second SRS_RB_offset configuration, in the time domain, is one symbol.
  • FIG. 3C illustrates a third example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • a third example sounding reference signal (SRS) offset configuration 300C includes a first at least one RB 310C, a second at least one RB 312C, a third at least one RB 314C, and a fourth at least one RB 316C.
  • the second RB 312C is at least partially, within, associated with, or the like, at least one first frequency.
  • the third RB 314C is at least partially, within, associated with, or the like, at least one second frequency greater than the first frequency.
  • the first RB 310C is at least partially, within, associated with, or the like, at least one third frequency greater than the second frequency.
  • the fourth RB 316C is at least partially, within, associated with, or the like, at least one fourth frequency greater than the third frequency.
  • the first RB 310C and the fourth RB 316C are associated with the first time period 302.
  • the second RB 312C and the third RB 314C are associated with the second time period 304.
  • each of the RBs 310B, 312B, 314B and 316B include a third SRS_RB_offset configuration including a first block region 320C and a second block region 322C.
  • the first block region 320C is associated with at least one SRS transmission. In some implementations, the second block region 322C is not associated with at least one SRS transmission.
  • the third SRS_RB_offset configuration changes circularly, cyclically, or the like, when the UE transmits at least one partial frequency SRS during the time of symbol based repetition and intra slot or inter slot frequency hopping. In some implementations, the granularity of the changed SRS_RB_offset of the third SRS_RB_offset configuration, in the time domain, is two symbols.
  • FIG. 3D illustrates a fourth example sounding reference signal (SRS) offset configuration associated with a plurality of example time periods, in accordance with some implementations of the present disclosure.
  • a fourth example sounding reference signal (SRS) offset configuration 300D includes a first at least one RB 310D, a second at least one RB 312D, a third at least one RB 314D, and a fourth at least one RB 316D.
  • the second RB 312D is at least partially, within, associated with, or the like, at least one first frequency.
  • the third RB 314D is at least partially, within, associated with, or the like, at least one second frequency greater than the first frequency.
  • the first RB 310D is at least partially, within, associated with, or the like, at least one third frequency greater than the second frequency.
  • the fourth RB 316D is at least partially, within, associated with, or the like, at least one fourth frequency greater than the third frequency.
  • the first RB 310D and the fourth RB 316D are associated with the first time period 302.
  • the second RB 312D and the third RB 314D are associated with the second time period 304.
  • each of the RBs 310B, 312B, 314B and 316B include a third SRS_RB_offset configuration including a first block region 320C and a second block region 322C associated with the first time period 302 and a third block region 30D and a fourth block region 332D associated with the second time period.
  • the first block region 320C and the fourth block region 332D are associated with at least one SRS transmission.
  • the second block region 322C and the third block region 330D are not associated with at least one SRS transmission.
  • the third SRS_RB_offset configuration is the same when the UE transmits at least one partial frequency SRS during the time of symbol based repetition.
  • the third SRS_RB_offset configuration changes during intra slot or inter slot frequency hopping.
  • Figures 4A-D illustrate example cyclic shift hopping in accordance with present implementations.
  • the UE can perform cyclic shift hopping on one or more of the SRS symbols with repetition and partial frequency sounding.
  • Figure 4A illustrates a first example cyclic shift hopping configuration associated with an example time period, in accordance with some implementations of the present disclosure.
  • an example at least one RB 400A includes a first block region 410A and a second block region 420A in a first cyclic shift hopping configuration.
  • the first block region 410A is associated with at least one SRS transmission.
  • the second block region 420A is not associated with at least one SRS transmission.
  • different cyclic shifts are employed on different symbols.
  • Figure 4B illustrates a second example cyclic shift hopping configuration associated with an example time period, in accordance with some implementations of the present disclosure.
  • an example at least one RB 400B includes a first block region 410B and a second block region 420B in a second cyclic shift hopping configuration.
  • the first block region 410B is associated with at least one SRS transmission.
  • the second block region 420B is not associated with at least one SRS transmission.
  • when the UE performs SRS repetition on multiple symbols different cyclic shifts are employed on those symbols.
  • the same RB level offset for the frequency hopping of RB-level partial frequency sounding is employed, corresponding or same cyclic shifts are employed on those symbols.
  • a different RB level offset for the frequency hopping of RB-level partial frequency sounding is employed.
  • this different RB level offset associated with RB 400B has a granularity of two symbols.
  • Figure 4C illustrates a third example cyclic shift hopping configuration associated with an example time period, in accordance with some implementations of the present disclosure.
  • an example at least one RB 400C includes a first block region 410C and a second block region 420C in a third cyclic shift hopping configuration.
  • the first block region 410C is associated with at least one SRS transmission.
  • the second block region 420C is not associated with at least one SRS transmission.
  • a different RB level offset with a granularity of one symbol for the frequency hopping of RB-level partial frequency sounding is employed.
  • the same cyclic shifts are employed on different symbols.
  • Figure 5 illustrates an example method for sounding reference signal (SRS) transmission, in accordance with present implementations.
  • SRS sounding reference signal
  • at least one of the example system 100 and 200 performs method 500 according to present implementations.
  • the method 500 begins at step 510.
  • the example system receives configuration information at a user equipment (UE) node from a base station (BS) node.
  • step 510 includes at least one of steps 512, 514, 516 and 518.
  • the example system receives configuration information for multiple reference resources.
  • the example system configures resource allocation in accordance with one or more reference signals.
  • the example system configures resource allocation in accordance with a repetition number associated with one or more reference signals.
  • the example system configures resource allocation in accordance with one or more reference signals in at least one slot and having at least one resource block (RB) offset.
  • the method 500 then continues to step 520.
  • the example system determines whether to determine a portion of resources at least partially based on repetition associated with one or more reference signals. In accordance with a determination to determine a portion of resources at least partially based on repetition associated with one or more reference signals, the method 500 continues to step 602. Alternatively, in accordance with a determination not to determine a portion of resources at least partially based on repetition associated with one or more reference signals, the method 500 continues to step 530.
  • the example system determines whether to determine a portion of resources at least partially based on time domain granularity. In accordance with a determination to determine a portion of resources at least partially based on time domain granularity, the method 500 continues to step 702. Alternatively, in accordance with a determination not to determine a portion of resources at least partially based on time domain granularity, the method 500 continues to step 510.
  • Figure 6 illustrates an example method for sounding reference signal (SRS) transmission further to the example method of Figure 5.
  • SRS sounding reference signal
  • at least one of the example system 100 and 200 performs method 600 according to present implementations.
  • the method 600 begins at step 602. The method 600 then continues to step 610.
  • step 610 the example system determines a repetition number.
  • the method 600 then continues to step 620.
  • the example system determines whether the repetition number is greater than or equal to 4 symbols. In accordance with a determination that the repetition number is greater than or equal to 4 symbols, the method 600 continues to step 660. Alternatively, in accordance with a determination that the repetition number is not greater than or equal to 4 symbols, the method 600 continues to step 630.
  • the example system determines whether the repetition number is less than 2 symbols. In accordance with a determination that the repetition number is less than 2 symbols, the method 600 continues to step 660. Alternatively, in accordance with a determination that the repetition number is not less than 2 symbols, the method 600 continues to step 640.
  • the example system determines whether the repetition number is less than 4 symbols. In accordance with a determination that the repetition number is less than 4 symbols, the method 600 continues to step 650. Alternatively, in accordance with a determination that the repetition number is not less than 4 symbols, the method 600 continues to step 802.
  • the example system determines whether frequency hopping is unavailable and whether periodicity is below a threshold value. In accordance with a determination that frequency hopping is unavailable and periodicity is below a threshold value, the method 600 continues to step 660. Alternatively, in accordance with a determination that frequency hopping is available or periodicity is not below a threshold value, the method 600 continues to step 660. In some implementations, in accordance with a determination that periodicity is not below a threshold value, the method 600 continues to step 660.
  • step 660 the example system determines an allocation of at least one reference resource in a frequency domain based at least partially on at least one RB offset.
  • step 660 includes at least one of steps 662 and 664.
  • step 662 the example system determines a portion of resources based at least partially on an RB offset that circularly changes.
  • step 664 the example system determines a portion of resources based at least partially on an RB offset that circularly changes with time domain granularity.
  • the method 600 then continues to step 802.
  • Figure 7 illustrates an example method for sounding reference signal (SRS) transmission further to the example method of Figure 5.
  • SRS sounding reference signal
  • at least one of the example system 100 and 200 performs method 700 according to present implementations.
  • the method 700 begins at step 702. The method 700 then continues to step 710.
  • step 710 the example system determines time domain granularity.
  • the method 700 then continues to step 720.
  • step 720 the example system determines whether time domain granularity is equal to 0 symbols. In accordance with a determination that time domain granularity is equal to 0 symbols, the method 700 continues to step 770. Alternatively, in accordance with a determination that time domain granularity is not equal to 0 symbols, the method 700 continues to step 730.
  • the example system determines whether time domain granularity is greater than or equal to 2 symbols. In accordance with a determination that time domain granularity is greater than or equal to 2 symbols, the method 700 continues to step 760. Alternatively, in accordance with a determination that time domain granularity is not greater than or equal to 2 symbols, the method 700 continues to step 740.
  • the example system determines whether time domain granularity is equal to 1 symbol. In accordance with a determination that time domain granularity is equal to 1 symbol, the method 700 continues to step 750. Alternatively, in accordance with a determination that time domain granularity is not equal to 1 symbol, the method 700 continues to step 710. Alternatively, in some implementations, the method 700 ends at step 740 in accordance with a determination that time domain granularity is not equal to 1 symbol.
  • step 750 the example system determines that an allocation of at least one reference resource in a frequency domain associated with different RB offsets has a same cyclic shift. The method 700 then continues to step 802.
  • step 760 the example system determines that various subsets of an allocation of at least one reference resource in a frequency domain associated with various RB offsets has various cyclic shifts.
  • step 760 includes at least one of steps 762 and 764.
  • step 762 the example system determines that a first subset of a portion of resources having a same RB offset is associated with different cyclic shifts.
  • step 764 the example system determines that a second subset of a portion of resources having different RB offsets is associated with a same cyclic shift.
  • the method 700 then continues to step 802.
  • step 770 the example system determines that an allocation of at least one reference resource in a frequency domain is associated with different cyclic shifts. The method 700 then continues to step 802.
  • Figure 8 illustrates an example method for sounding reference signal (SRS) transmission further to the example method of Figures 6 and 7.
  • SRS sounding reference signal
  • at least one of the example system 100 and 200 performs method 800 according to present implementations.
  • the method 800 begins at step 802. The method 800 then continues to step 810.
  • step 810 the example system allocates at least one reference resource in a frequency domain.
  • step 810 includes at least one of steps 812 and 814.
  • step 812 the example system allocates at least one portion of resources based at least partially on a repetition number associated with one or more reference signals.
  • step 814 the example system allocates at least one portion of resources based at least partially on references signals associated with at least one predetermined slot and at least one RB offset. The method 800 then continues to step 820.
  • step 820 the example system sends one or more reference signals from the UE to the BS.
  • step 820 includes step 822.
  • step 822 the example system sends one or more reference signals based at least partially on an allocation of at least one reference resource in a frequency domain.
  • the method 800 ends at step 820.
  • Figure 9 illustrates a further example method for sounding reference signal (SRS) transmission, in accordance with present implementations.
  • SRS sounding reference signal
  • at least one of the example system 100 and 200 performs method 900 according to present implementations.
  • the method 900 begins at step 910.
  • the example system receives configuration information at a user equipment (UE) node from a base station (BS) node.
  • step 910 includes at least one of steps 912, 914, 916 and 918.
  • the example system receives configuration information for multiple reference resources.
  • the example system configures resource allocation in accordance with one or more reference signals.
  • the example system configures resource allocation in accordance with a repetition number associated with one or more reference signals.
  • the example system configures resource allocation in accordance with one or more reference signals in at least one slot and having at least one resource block (RB) offset.
  • the method 900 then continues to step 920.
  • step 920 the example system allocates at least one reference resource in a frequency domain.
  • step 920 includes at least one of steps 922 and 924.
  • step 922 the example system allocates at least one portion of resources based at least partially on a repetition number associated with one or more reference signals.
  • step 924 the example system allocates at least one portion of resources based at least partially on references signals associated with at least one predetermined slot and at least one RB offset. The method 900 then continues to step 930.
  • step 930 the example system sends one or more reference signals from the UE to the BS.
  • step 930 includes step 932.
  • step 932 the example system sends one or more reference signals based at least partially on an allocation of at least one reference resource in a frequency domain.
  • the method 900 ends at step 932.
  • any reference to an element herein using a designation such as “first, “ “second, “ and so forth does not generally limit the quantity or order of those elements. Rather, these designations can be used herein as a convenient means of distinguishing between two or more elements or instances of an element. Thus, a reference to first and second elements does not mean that only two elements can be employed, or that the first element must precede the second element in some manner.
  • any of the various illustrative logical blocks, modules, processors, means, circuits, methods and functions described in connection with the aspects disclosed herein can be implemented by electronic hardware (e.g., a digital implementation, an analog implementation, or a combination of the two) , firmware, various forms of program or design code incorporating instructions (which can be referred to herein, for convenience, as "software” or a "software module) , or any combination of these techniques.
  • firmware e.g., a digital implementation, an analog implementation, or a combination of the two
  • firmware various forms of program or design code incorporating instructions
  • software or a “software module”
  • IC integrated circuit
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the logical blocks, modules, and circuits can further include antennas and/or transceivers to communicate with various components within the network or within the device.
  • a general purpose processor can be a microprocessor, but in the alternative, the processor can be any conventional processor, controller, or state machine.
  • a processor can also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other suitable configuration to perform the functions described herein.
  • Computer-readable media includes both computer storage media and communication media including any medium that can be enabled to transfer a computer program or code from one place to another.
  • a storage media can be any available media that can be accessed by a computer.
  • such computer-readable media can include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store desired program code in the form of instructions or data structures and that can be accessed by a computer.
  • module refers to software, firmware, hardware, and any combination of these elements for performing the associated functions described herein. Additionally, for purpose of discussion, the various modules are described as discrete modules; however, as would be apparent to one of ordinary skill in the art, two or more modules may be combined to form a single module that performs the associated functions according implementations of the present solution.
  • memory or other storage may be employed in implementations of the present solution.
  • memory or other storage may be employed in implementations of the present solution.
  • any suitable distribution of functionality between different functional units, processing logic elements or domains may be used without detracting from the present solution.
  • functionality illustrated to be performed by separate processing logic elements, or controllers may be performed by the same processing logic element, or controller.
  • references to specific functional units are only references to a suitable means for providing the described functionality, rather than indicative of a strict logical or physical structure or organization.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente divulgation concerne un système et un procédé d'émission de signal de référence de sondage (SRS). Selon un mode de réalisation, un procédé mis en œuvre par un dispositif de communication sans fil comprend la réception, par un dispositif de communication sans fil et en provenance d'un nœud de communication sans fil, d'informations permettant de configurer une pluralité de ressources, une attribution d'une partie des ressources étant configurée sur la base du nombre de répétitions des signaux de référence à l'intérieur d'un créneau et d'un décalage de bloc de ressources (RB) et l'envoi, par le dispositif de communication sans fil et à destination du nœud de communication sans fil, d'une pluralité de signaux de référence en utilisant ladite partie des ressources. Selon un autre mode de réalisation, un procédé mis en œuvre par un nœud de communication sans fil comprend l'envoi, par un nœud de communication sans fil et à destination d'un dispositif de communication sans fil, d'informations permettant de configurer une pluralité de ressources, une attribution d'une partie des ressources étant configurée sur la base du nombre de répétitions des signaux de référence à l'intérieur d'un créneau et d'un décalage de bloc de ressources (RB) et la réception, par le nœud de communication sans fil et en provenance du dispositif de communication sans fil, d'une pluralité de signaux de référence en utilisant ladite partie des ressources.
PCT/CN2021/070258 2021-01-05 2021-01-05 Système et procédé d'émission de signal de référence de sondage WO2022147645A1 (fr)

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Citations (2)

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CN108810972A (zh) * 2017-05-04 2018-11-13 华为技术有限公司 通信方法、终端设备和网络设备
US20200204316A1 (en) * 2017-08-11 2020-06-25 Nokia Technologies Oy Enhanced sounding reference signal transmission

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CN108810972A (zh) * 2017-05-04 2018-11-13 华为技术有限公司 通信方法、终端设备和网络设备
US20200204316A1 (en) * 2017-08-11 2020-06-25 Nokia Technologies Oy Enhanced sounding reference signal transmission

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