WO2015172506A1 - 发送时间确定方法、终端、基站、系统和存储介质 - Google Patents
发送时间确定方法、终端、基站、系统和存储介质 Download PDFInfo
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- WO2015172506A1 WO2015172506A1 PCT/CN2014/088511 CN2014088511W WO2015172506A1 WO 2015172506 A1 WO2015172506 A1 WO 2015172506A1 CN 2014088511 W CN2014088511 W CN 2014088511W WO 2015172506 A1 WO2015172506 A1 WO 2015172506A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
- H04W56/0015—Synchronization between nodes one node acting as a reference for the others
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- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
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- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2656—Frame synchronisation, e.g. packet synchronisation, time division duplex [TDD] switching point detection or subframe synchronisation
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- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2662—Symbol synchronisation
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- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2669—Details of algorithms characterised by the domain of operation
- H04L27/2671—Time domain
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- 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
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2668—Details of algorithms
- H04L27/2673—Details of algorithms characterised by synchronisation parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
Definitions
- the present invention relates to synchronization technologies in the field of communications, and in particular, to a synchronization signal transmission time determination method, a terminal, a base station, a system, and a storage medium.
- the terminal In the communication process, in order to facilitate the terminal to exchange information with other terminals or network devices through the base station access network, the terminal needs to synchronize with the base station.
- the synchronization includes time synchronization and frequency synchronization, and in addition, the terminal may need to detect the discovery signal to obtain optimal beam index information.
- more and more signals and signaling are exchanged between the terminal and the base station, and the accuracy of synchronization is also higher and higher. Therefore, in the communication environment where the communication is more complicated, how to implement the terminal and the base station Inter-synchronization, how to improve the synchronization accuracy between the terminal and the base station is an urgent problem to be solved in the prior art.
- the present invention is intended to provide a synchronization signal transmission time determination method, a terminal, a base station, and a communication system and a storage medium to achieve synchronization between a terminal and a base station.
- a first aspect of the embodiments of the present invention provides a method for determining a synchronization signal transmission time, where the method includes:
- the transmission time of the synchronization signal is determined according to the time index.
- the time index is a first time index, a second time index, a third time index, a fourth time index, a fifth time index, a sixth time index, or a seventh time index;
- the time index of acquiring the synchronization signal is:
- Determining the first time index according to a correspondence between a scrambling bit sequence of a system message configured by a predefined or higher layer signaling and the first time index;
- Determining the first time index according to a correspondence between a CRC scrambling bit sequence of a system message configured by a predefined or higher layer signaling and the first time index;
- Determining the first time index according to a correspondence between a combination of a CRC scrambling bit sequence of a system message configured by a predefined or higher layer signaling and a scrambling bit sequence of the system message and the first time index;
- Determining the first time index according to a correspondence between a combination of a CRC scrambling bit sequence and a system message bit of a system message configured by a predefined or higher layer signaling and the first time index;
- Determining the first time index according to a correspondence between a combination of a scrambling bit sequence and a system message bit of a system message configured by a predefined or higher layer signaling and the first time index;
- Determining the first time index according to a correspondence between a CRC scrambling bit sequence of a system message configured by a predefined or higher layer signaling, a scrambling bit sequence of a system message, and a combination of system message bits and the first time index ;
- Determining the first time index according to a correspondence between a system message bit configured by a predefined or higher layer signaling and the first time index.
- One of the synchronization signals includes a primary synchronization signal and a secondary synchronization signal
- the receiving synchronization signal is:
- the acquiring the second time index according to the synchronization signal sent by the base station includes:
- the sending time interval is a first time interval
- N1 of the synchronization signals adopt S1 different synchronization sequences, where N1 ⁇ S1>0;
- the acquiring the second time index according to the synchronization signal sent by the base station includes:
- the acquiring the third time index according to the discovery signal sent by the base station includes:
- the acquiring the third time index according to the discovery signal sent by the base station includes:
- the discovery signal carries a beam index
- Determining the third time index according to a correspondence between a beam index configured by a predefined or higher layer signaling and the third time index.
- the method also includes receiving a discovery signal
- the obtaining the fourth time index according to the synchronization signal and the discovery signal sent by the base station includes:
- the time interval is a second time interval
- the fourth time index is determined according to a synchronization signal sequence index configured by the predefined or higher layer signaling, a correspondence between the combination of the discovery signal index and the second time interval, and the second time index.
- the time index includes at least one of the following indexes: a transmission symbol index, a micro frame index, a subframe index, and a time domain unit index.
- a second aspect of the embodiments of the present invention provides a method for determining a synchronization signal transmission time, where the method includes:
- the first time index is used to determine a transmission time of the synchronization signal.
- the first time index of sending the synchronization signal is:
- the first time index is sent by system message, dedicated information, or higher layer signaling.
- the sending the first time index by using a system message is:
- a third aspect of the embodiments of the present invention provides a method for determining a synchronization signal transmission time, where the method includes:
- the sending parameter is used to represent the time index
- the time index is a time index for the terminal to determine the synchronization signal transmission time.
- the time index is a second time index
- One of the synchronization signals includes a primary synchronization signal and a secondary synchronization signal
- the sending parameter is the first time interval; the time index is a second time index;
- the correspondence between the first time interval and the second time index is configured by using predefined or higher layer signaling.
- the correspondence between the synchronization sequence and the second time index is configured by using predefined or higher layer signaling.
- the sending parameter is a beam index carried by the discovery signal; the time index is a third Time index
- the correspondence between the beam index and the third time interval is configured by pre-defined or higher layer signaling.
- the downlink signal further includes a discovery signal
- the sending parameter is a discovery sequence of the discovery signal; the time index is a third time index;
- the correspondence between the discovery sequence and the third time index is configured by pre-defined or higher layer signaling.
- the downlink signal further includes a discovery signal
- the transmission time interval between the synchronization signal and the discovery signal is a second time interval
- the sending parameter is the second time interval; the time index is a fourth time index;
- Corresponding relationship between the second time interval and the fourth time index is configured by pre-defined or high-level signaling
- the sending parameter is a synchronization signal index of the synchronization signal and a discovery signal index of the discovery signal; the time index is a fourth time index;
- Corresponding relationship between the combination of the synchronization signal index and the signaling signal index and the first time index is configured by pre-defined or higher layer signaling;
- the sending parameter includes the synchronization signal index, a discovery signal index, and the second time interval;
- the time index is a fourth time index
- the correspondence between the synchronization signal index, the discovery signal index, and the combination of the second time interval and the fourth time index is configured by pre-defined or higher layer signaling.
- the method further includes transmitting, by using a system message, dedicated signaling, or higher layer signaling, a first time index in the time index;
- the first time index is used together with other time indexes in the time index for the terminal to determine a time index of the synchronization signal transmission time.
- a fourth aspect of the embodiments of the present invention provides a method for determining a synchronization signal transmission time, where the synchronization signal transmission time determination method includes:
- the base station transmits a synchronization signal
- the base station sends a first time index; the first time index is used to indicate a sending time of the synchronization signal;
- the terminal determines a transmission time of the synchronization signal according to the first time index.
- a fifth aspect of the embodiments of the present invention provides a method for determining a synchronization signal transmission time, where the synchronization signal transmission time determination method includes:
- the base station determines the sending parameter according to the correspondence between different synchronization signals and the time index
- the sending parameter is used to represent the time index
- the time index is a time index used by the terminal to determine the synchronization signal transmission time
- the terminal Receiving, by the terminal, the downlink signal including the synchronization signal
- the terminal determines the transmission time of the synchronization signal according to the time index.
- a sixth aspect of the embodiments of the present invention provides a terminal, where the terminal includes:
- a receiving unit configured to receive a synchronization signal
- An obtaining unit configured to acquire a time index of the synchronization signal
- the first determining unit is configured to determine a sending time of the synchronization signal according to the time index.
- the time index is a first time index, a second time index, a third time index, a fourth time index, a fifth time index, a sixth time index, or a seventh time index;
- the obtaining unit is configured to
- the obtaining unit is configured to
- Determining the first time index according to a correspondence between a scrambling bit sequence of a system message configured by a predefined or higher layer signaling and the first time index;
- Determining the first time index according to a correspondence between a CRC scrambling bit sequence of a system message configured by a predefined or higher layer signaling and the first time index;
- Determining the first time index according to a correspondence between a CRC scrambling bit sequence of a system message configured by a predefined or higher layer signaling and a scrambling bit sequence of the system message and the first time index;
- Determining the first time index according to a correspondence between a CRC scrambling bit sequence of a system message configured by a predefined or higher layer signaling and a system message bit combination and the first time index;
- Determining the first time index according to a correspondence between a scrambling bit sequence of a system message configured by a predefined or higher layer signaling and a system message bit combination and the first time index;
- Determining the first time index according to a CRC scrambling bit sequence of a system message configured by a predefined or higher layer signaling, a scrambling bit sequence of the system message, and a correspondence between the system message bit combination and the first time index;
- Determining the first time index according to a correspondence between a system message bit configured by a predefined or higher layer signaling and the first time index.
- One of the synchronization signals includes a primary synchronization signal and a secondary synchronization signal
- the receiving unit is configured to receive the primary synchronization signal and the secondary synchronization signal respectively;
- the acquiring unit is configured to determine a sending time interval of the primary synchronization signal and the secondary synchronization signal according to a time interval between receiving the primary synchronization signal and the secondary synchronization signal;
- the time interval is a first time interval; and the second time index is determined according to the correspondence between the first time interval and the second time index configured by the predefined or higher layer signaling.
- N1 of the synchronization signals adopt S1 different synchronization sequences, where N1 ⁇ S1>0;
- the acquiring unit is configured to extract a synchronization sequence corresponding to the synchronization signal, and determine a second time index according to a correspondence between a synchronization sequence configured by a predefined or higher layer signaling and the second time index.
- the acquiring unit is configured to receive a discovery signal, extract a discovery sequence corresponding to the discovery signal, and determine the first according to a correspondence between a discovery sequence configured by a predefined or higher layer signaling and the third time index.
- the N2 discovery signals adopt S2 different discovery sequences, and N2 ⁇ S2>0.
- a seventh aspect of the embodiments of the present invention provides a base station, where the base station includes:
- a first sending unit configured to send a synchronization signal and a first time index
- the first time index is configured to determine, by the terminal, a transmission time of the synchronization signal.
- An eighth aspect of the embodiments of the present invention provides a base station, where the base station includes:
- a second determining unit configured to determine a sending parameter according to a correspondence between different synchronization signals and a time index
- a second sending unit configured to send a downlink signal including the synchronization signal according to the sending parameter
- the sending parameter is used to represent the time index
- the time index is a time index configured to determine, by the terminal, the synchronization signal transmission time.
- the sending parameter is the first time interval; the time index is a second time index;
- the correspondence between the first time interval and the second time index is configured by using predefined or higher layer signaling.
- N1 of the synchronization signals adopt S1 different synchronization sequences, where N1 ⁇ S1>0;
- the sending parameter is the synchronization sequence;
- the time index is a second time index;
- the correspondence between the beam index and the third time interval is configured by pre-defined or higher layer signaling.
- the downlink signal further includes a discovery signal
- the sending parameter includes the synchronization signal index, a discovery signal index, and the second time interval;
- the time index is a fourth time index
- the correspondence between the synchronization signal index, the discovery signal index, and the combination of the second time interval and the fourth time index is configured by pre-defined or higher layer signaling.
- the second sending unit is further configured to send the first time index in the time index by using a system message, dedicated signaling, or high layer signaling;
- the first time index is used together with other time indexes in the time index for the terminal to determine a time index of the synchronization signal transmission time.
- the base station is configured to send a synchronization signal and a first time index; the first time index is configured to indicate a sending time of the synchronization signal;
- a tenth aspect of the present invention provides a communication system, the system comprising:
- the base station is configured to determine a sending parameter according to a correspondence between different synchronization signals and a time index, and send a downlink signal including the synchronization signal according to the sending parameter, where the sending parameter is used to represent the time index;
- the time index is a time index used by the terminal to determine the synchronization signal transmission time;
- the terminal is configured to receive the downlink signal including the synchronization signal, acquire a transmission parameter of the downlink signal, determine a time index according to the transmission parameter, and determine a transmission time of the synchronization signal according to the time index.
- FIG. 4 is a fourth schematic flowchart of a method for determining a synchronization signal transmission time according to an embodiment of the present invention
- FIG. 5 is a fifth schematic flowchart of a method for determining a synchronization signal sending time according to an embodiment of the present invention
- FIG. 6 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
- FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention.
- FIG. 8 is a second schematic structural diagram of a base station according to an embodiment of the present invention.
- FIG. 9 is a schematic diagram of a correspondence relationship between a synchronization signal and time according to an embodiment of the present invention.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- this embodiment provides a method for determining a synchronization signal transmission time, where the method includes:
- Step S110 receiving a synchronization signal
- Step S120 Acquire a time index of the synchronization signal.
- the terminal may receive at least two synchronization signals in one synchronization period; specifically, receiving a plurality of different synchronization signals at the same time and receiving a plurality of identical or different synchronization signals at different times. If the terminal receives the at least two synchronization signals in a synchronization period, how to determine the transmission time of each synchronization signal; in this embodiment, the terminal further includes acquiring the corresponding synchronization signal. The steps of the time index.
- the time index is used to determine a sending time of the synchronization signal; the sending time may be specifically a certain sending time, or may correspond to a sending time period, such as a subframe, a micro frame or an OFDM symbol or a customized Time domain unit, etc.
- the terminal After performing step S130, the terminal will correct the synchronization with the base station according to the received synchronization signal and the transmission time determined in step S130, and the synchronization will be more accurate.
- step S110 and the step S120 are not performed in a certain order; they may be executed simultaneously or sequentially; in particular, the step S110 may be preceded by the step S120, or the step S120 may be preceded by the step S110.
- the first time index may be represented by a dedicated field or a bit bitmap.
- the first time index in order to reduce the overhead of the downlink, is combined with other messages in the same sequence or the same field.
- Receiving the first time index by the terminal, including receiving the system message, after receiving the system message may further include:
- Determining the first time index according to a correspondence between a combination of a CRC scrambling bit sequence and a system message bit of a system message configured by a predefined or higher layer signaling and the first time index;
- One of the synchronization signals includes a primary synchronization signal and a secondary synchronization signal
- the receiving synchronization signal is:
- the acquiring the second time index according to the synchronization signal sent by the base station includes:
- the sending time interval is a first time interval
- the first synchronization time of the primary synchronization signal and the secondary synchronization signal of the different synchronization signals are different.
- N1 of the synchronization signals adopt S1 different synchronization sequences, where N1 ⁇ S1>0;
- the acquiring the second time index according to the synchronization signal sent by the base station includes:
- Determining a second time index according to a correspondence between a synchronization sequence configured by a predefined or higher layer signaling and the second time index.
- multiple synchronization signals in a synchronization period preferably adopt different synchronization sequences.
- the acquiring the third time index according to the discovery signal sent by the base station includes:
- the N2 discovery signals adopt S2 different discovery sequences, and N2 ⁇ S2>0; in a specific implementation process, preferably, the discovery sequences corresponding to different discovery signals are different.
- the acquiring the third time index according to the discovery signal sent by the base station includes:
- the discovery signal carries a beam index
- the third time index Determining the third time index according to a correspondence between a beam index configured by a predefined or higher layer signaling and the third time index.
- the beam indexes of the discovery signals corresponding to different synchronization signals are different.
- the method also includes receiving a discovery signal
- the obtaining the fourth time index according to the synchronization signal and the discovery signal sent by the base station includes:
- the fourth time index is determined according to a synchronization signal configured by the predefined or higher layer signaling and a correspondence between the second time interval of the discovery signal and the fourth time index.
- the time interval is a second time interval
- a synchronization signal sequence index the discovery signal, according to a predefined or higher layer signaling configuration
- a correspondence between the combination of the index and the second time interval and the second time index determines a fourth time index.
- obtaining a fifth time index which is a method for acquiring a first time index and a second time index
- acquiring a sixth time broken silver as a method for acquiring the first time index and the third time index
- obtaining the seventh time index as A method of combining the first time index with the fourth time broken silver.
- the amount of downlink data transmission can be reduced, and signaling overhead can be reduced.
- the foregoing embodiment provides a synchronization signal transmission time determination method, which is based on a time index to determine a transmission time, and is particularly suitable for a scenario in which multiple synchronization signals are simultaneously received in a synchronization period, which has high synchronization precision and is easy to implement.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- this embodiment provides a method for determining a synchronization signal transmission time, where the method includes:
- Step S210 transmitting a synchronization signal
- Step S220 Send a first time index
- Step S230 The first time index is used by the terminal to determine a sending time of the synchronization signal.
- multiple synchronization signals may be transmitted in one synchronization period; specifically, multiple different synchronization signals are transmitted at the same time and multiple identical or different synchronization signals are transmitted at different times.
- the base station will also index the first time in step S220; specifically, if the synchronization signal A is transmitted, a first time index corresponding to the synchronization signal A will also be transmitted for the terminal to determine the transmission time of the synchronization signal.
- the sending time may be a specific time or a time period.
- the first time index may be any information that has a corresponding relationship with time.
- step S210 and the step S220 are not in a certain order; they may be executed simultaneously or sequentially; in particular, the step S210 may be performed before the step S220.
- Step S220 is before the step S1210.
- the first time index is preferably sent by using a system message, dedicated signaling, or higher layer signaling.
- the first time index may be at least one of a transmission symbol index, a micro frame index, a subframe index, and a time domain unit index.
- a transmission symbol index a transmission symbol index
- a micro frame index a transmission symbol index
- a subframe index a time domain unit index
- the first time index is preferably sent by using a system message, a dedicated signaling, a discovery signal, or a high layer signaling.
- the sending the first time index by using a system message is:
- the foregoing embodiment provides that the base station sends a synchronization signal, and also sends a first time index for determining the synchronization signal transmission time, which is convenient for realizing accurate synchronization; and specifically provides several preferred methods for how to send the first time index.
- the method has the advantages of simple and convenient implementation.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- this embodiment provides a method for determining a synchronization signal transmission time, where the method includes:
- Step S211 Determine a sending parameter according to a correspondence between different synchronization signals and a time index.
- Step S221 Send a downlink signal including the synchronization signal according to the sending parameter.
- the sending parameter is used to represent the time index
- the time index is a time index for the terminal to determine the synchronization signal transmission time.
- the time index may include at least a second time index, a third time index, and a fourth time index.
- the time index is the second time index
- the following two priority manners are provided to implement the second time index characterization:
- One of the synchronization signals includes a primary synchronization signal and a secondary synchronization signal
- the sending time interval between the primary synchronization signal and the secondary synchronization signal is a first time interval
- the sending parameter is the first time interval; the time index is a second time index;
- the first time interval is characterized by a second time index; wherein the correspondence between the first time interval and the second time index is configured by pre-defined or higher layer signaling.
- N1 of the synchronization signals adopt S1 different synchronization sequences, where N1 ⁇ S1>0;
- the sending parameter is the synchronization sequence;
- the time index is a second time index;
- the correspondence between the synchronization sequence and the second time index is configured by using predefined or higher layer signaling.
- the second time index is characterized by using the transmission parameters of the different synchronization signals themselves, which is simple to implement.
- the base station side may pre-store the correspondence between the transmission parameters of the synchronization signal and the second time index, and determine the second time index, that is, the transmission time of each synchronization signal.
- the downlink signal sent in the step S221 further includes a discovery signal; the following two manners are used to implement the characterization of the third time index:
- the sending parameter is a beam index carried by the discovery signal; the time index is a third time index; and the correspondence between the beam index and the third time interval is configured by pre-defined or high-level signaling. of.
- the sending parameter is a discovery sequence of the discovery signal
- the time index is a third time index
- the corresponding relationship between the discovery sequence and the third time index is configured by pre-defined or high-level signaling of.
- the downlink sent in the step S221 The signal also includes the discovery signal; the following three preferred ways to achieve the characterization of the fourth time index:
- the transmission time interval between the synchronization signal and the discovery signal is a second time interval
- the sending parameter is the second time interval; the time index is a fourth time index;
- the correspondence between the second time interval and the fourth time index is configured by pre-defined or higher layer signaling.
- the sending parameter is a synchronization signal index of the synchronization signal and a discovery signal index of the discovery signal; the time index is a fourth time index;
- the correspondence between the combination of the synchronization signal index and the transmission signal index and the first time index is configured by pre-defined or higher layer signaling.
- the sending parameter includes the synchronization signal index, a discovery signal index, and the second time interval;
- the time index is a fourth time index
- the correspondence between the synchronization signal index, the discovery signal index, and the combination of the second time interval and the fourth time index is configured by pre-defined or higher layer signaling.
- Transmitting the time index in the above manner can reduce the overhead of signaling and is simple to implement.
- the method of any one of the preceding embodiments further includes transmitting the first time index by at least one of a system message, dedicated signaling, or higher layer signaling.
- the first time index is used together with at least one of the second time index, the third time index, and the fourth time index to determine a transmission time of the synchronization signal by the terminal.
- the first time index and the second time index together form a fifth time index; first The time index and the third time index together constitute a sixth time index; the first time index and the fourth time index together constitute a seventh time index.
- the transmission time of a synchronization signal may need to be represented by 4 bits; wherein the first time index represents 2 of the bits, and the remaining 2 bits are represented by the correspondence between the first time interval and the two bits. Therefore, the transmission time of the synchronization signal can be determined in combination with the first time index and the first time interval.
- one of the first time index and the first time interval may be a primary index, and one may be a secondary index under the primary index.
- One of the primary indexes corresponds to a plurality of secondary indexes; combining the primary index and the secondary index may specifically specify a transmission time of the synchronization signal.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- this embodiment provides a method for determining a synchronization signal transmission time, where the synchronization signal transmission time determination method includes:
- Step S310 The base station sends a synchronization signal.
- Step S320 The terminal receives the synchronization signal.
- Step S330 The base station sends a first time index, where the first time index is used to indicate a sending time of the synchronization signal.
- Step S340 The terminal receives the first time index.
- Step S350 The terminal determines a sending time of the synchronization signal according to the first time index.
- This embodiment combines the technical solution of the first embodiment with the technical solution of the second embodiment.
- the steps performed by the base station refer to the technical solution described in any of the second embodiment.
- the steps performed by the terminal may refer to the technical solution corresponding to the second embodiment in the first embodiment.
- the first time index is sent by using a system message, a discovery signal, or a high layer signaling, and the like.
- the step S310 is before the step S320 and before the step S350; the step S320 is at the same time before the step S340. Before step S350; however, it is not necessary to follow the sequence between step S320 and step S320.
- the terminal synchronizes with the base station according to the determined time, and has the advantages of high synchronization precision and simple synchronization.
- Embodiment 5 is a diagrammatic representation of Embodiment 5:
- the embodiment provides a method for determining a synchronization signal transmission time, where the synchronization signal transmission time determination method includes:
- Step S311 The base station determines the sending parameter according to the correspondence between the different synchronization signals and the time index.
- the sending parameter is used to represent the time index
- Step S331 The terminal receives the downlink signal including the synchronization signal.
- Step S351 The terminal determines the sending time of the synchronization signal according to the time index.
- This embodiment combines the technical solution of the first embodiment with the technical solution of the third embodiment.
- the steps performed by the base station reference may be made to the technical solution described in any of the third embodiments.
- the steps performed by the terminal may refer to the technical solution corresponding to the third embodiment in the first embodiment.
- the first time index is sent by using a system message, a discovery signal, or a high layer signaling, and the like.
- the receiving unit 110 is configured to receive a synchronization signal
- the first determining unit 130 is configured to determine a sending time of the synchronization signal according to the time index.
- the receiving interface of the receiving unit 110 is, for example, a receiving antenna.
- the acquiring unit 120 is different according to the manner in which the time index is obtained.
- the specific structure of the acquiring unit 120 may also be a receiving antenna, and may be the same as the receiving unit 110. Root antenna.
- the obtaining unit 120 extracts a time index according to the downlink signal received by the receiving unit 110
- the specific structure of the acquiring unit 120 may obtain a result of the processor and the like, and acquire a sending parameter of the downlink signal according to the agreement with the terminal in advance, and obtain Time index.
- the time index is a first time index, a second time index, a third time index, a fourth time index, a fifth time index, a sixth time index, or a seventh time index;
- the acquiring unit is configured to acquire the first time index sent by the base station by using a system message, dedicated signaling, or high-layer signaling; or acquiring the second time index according to the synchronization signal sent by the base station; or according to the discovery sent by the base station Obtaining the third time index according to the synchronization signal and the discovery signal sent by the base station; or acquiring the fifth time index according to the first time index and the second time index; or Obtaining a sixth time index according to the first time index and the third time index; or acquiring a seventh time index according to the first time index and the fourth time index.
- the obtaining unit 120 is configured to determine the first time index according to a correspondence between a scrambling bit sequence of a system message configured by a predefined or higher layer signaling and the first time index; or according to a predefined or a CRC scrambling bit sequence of the system message of the high layer signaling configuration and the Corresponding relationship of the first time index, determining the first time index; or combining the CRC scrambling bit sequence of the system message configured according to the predefined or higher layer signaling and the scrambling bit sequence of the system message with the first Corresponding relationship of the time index, determining the first time index; or the correspondence between the combination of the CRC scrambling bit sequence and the system message bit of the system message configured according to the predefined or higher layer signaling and the first time index, Determining the first time index; or determining the first time index according to a correspondence between a combination of a scrambling bit sequence and a system message bit of a system message configured by a predefined or higher layer signaling and the first time index Or determining
- the method for obtaining the time index includes at least the following two preferred methods:
- One of the synchronization signals includes a primary synchronization signal and a secondary synchronization signal
- the receiving unit 110 is configured to receive the primary synchronization signal and the secondary synchronization signal respectively;
- the obtaining unit 120 is configured to determine a sending time interval of the primary synchronization signal and the secondary synchronization signal according to a time interval between receiving the primary synchronization signal and the secondary synchronization signal; the sending time interval is a first time interval And determining a second time index according to the correspondence between the first time interval configured by the predefined or higher layer signaling and the second time index.
- N1 of the synchronization signals adopt S1 different synchronization sequences, where N1 ⁇ S1>0;
- the acquiring unit 120 is configured to extract a synchronization sequence corresponding to the synchronization signal, and a corresponding sequence of the synchronization sequence configured according to the predefined or higher layer signaling and the second time index System, determine the second time index.
- the method for the obtaining unit to obtain the time index includes at least the following two preferred modes:
- the downlink signal further includes a discovery signal; the sending parameter is a beam index carried by the discovery signal; and the time index is a third time index;
- the correspondence between the beam index and the third time interval is configured by pre-defined or higher layer signaling.
- the sending parameter is a discovery sequence of the discovery signal; the time index is a third time index;
- the correspondence between the discovery sequence and the third time index is configured by pre-defined or higher layer signaling.
- the method for the obtaining unit to obtain the time index includes at least the following preferred methods:
- the downlink signal further includes a discovery signal
- the transmission time interval between the synchronization signal and the discovery signal is a second time interval
- the sending parameter is the second time interval; the time index is a fourth time index;
- Corresponding relationship between the second time interval and the fourth time index is configured by pre-defined or high-level signaling
- the sending parameter is a synchronization signal index of the synchronization signal and a discovery signal index of the discovery signal; the time index is a fourth time index;
- a combination of the synchronization signal index and the transmit signal index and the second time index Correspondence is configured through pre-defined or high-level signaling;
- the sending parameter includes the synchronization signal index, a discovery signal index, and the second time interval;
- the time index is a fourth time index
- the correspondence between the synchronization signal index, the discovery signal index, and the combination of the second time interval and the fourth time index is configured by pre-defined or higher layer signaling.
- the time index may include at least one of the following indexes: a transmission symbol index, a micro frame index, a subframe index, and a time domain unit index.
- the terminal in this embodiment provides the supporting hardware for the synchronization signal sending time determining method according to the first embodiment, and can be used to implement the synchronization signal sending time determining method according to any technical solution in the first embodiment. After determining the transmission time of each synchronization signal, the terminal will synchronize the synchronization with the base station according to the synchronization signal itself and the synchronization signal, and has the advantages of simple implementation and high synchronization precision.
- This embodiment provides a base station, where the base station includes:
- a first sending unit configured to send a synchronization signal and a first time index
- the first time index is configured to determine, by the terminal, a transmission time of the synchronization signal.
- the specific structure of the first sending unit may include a sending interface, such as a transmitting antenna or a transmitting antenna array.
- the base station may further include a synchronization unit connected to the first generation unit, configured to form the first time index and the synchronization signal.
- the structure of the synchronization unit may include a processor and a storage medium; the storage medium may store computer executable instructions; the processor forms a time index of the synchronization signal and the synchronization signal by running the computer executable instructions .
- the first time index is a transmission symbol index, a micro frame index, a subframe index, and a time domain unit. At least one of the indexes.
- the first sending unit is configured to send the first time index by using a system message, dedicated signaling, or high layer signaling.
- the first sending unit is configured to determine, according to a correspondence between a scrambling bit sequence of a scrambling bit sequence system message of a system message configured by a predefined or higher layer signaling, and the first time index,
- the first time index is carried in the system message; or the correspondence between the CRC scrambling bit sequence of the system message configured according to the predefined or higher layer signaling and the first time index is determined, and the first time index is carried Transmitting in a system message; or determining a correspondence between a combination of a CRC scrambling bit sequence of a system message configured according to a predefined or higher layer signaling and a scrambling bit sequence of a system message and the first time index
- the first time index bearer is sent in the system message; or the correspondence between the combination of the CRC scrambling bit sequence and the system message bit of the system message configured according to the predefined or higher layer signaling and the first time index is determined.
- Transmitting the first time index in a system message or scrambling a system message configured according to predefined or higher layer signaling Determining a correspondence between the combination of the special sequence and the system message bit and the first time index, determining and transmitting the first time index in a system message; or CRC of a system message configured according to predefined or higher layer signaling Determining a correspondence between the combination of the scrambling bit sequence, the scrambling bit sequence of the system message, and the system message bit and the first time index, and transmitting the first time index in a system message; or according to a predefined Or the corresponding relationship between the system message bit configured by the high-level signaling and the first time index, and determining and transmitting the first time index in the system message.
- the present embodiment provides a method for determining a synchronization signal transmission time according to the second embodiment, which provides a specific hardware support, which can be used to implement the technical solution described in any one of the first embodiment of the method, and has the same improved terminal and Synchronization accuracy between base stations and simplifies the advantages of synchronization.
- this embodiment provides a base station, where the base station includes:
- the second determining unit 210 is configured to determine a sending parameter according to a correspondence between different synchronization signals and a time index;
- the second sending unit 220 is configured to send a downlink signal including the synchronization signal according to the sending parameter
- the sending parameter is used to represent the time index
- the time index is a time index for the terminal to determine the synchronization signal transmission time.
- the specific structure of the second determining unit 210 may include a processor and a memory; the memory stores a correspondence between different synchronization signals and a second time index; the processor is connected to the memory, When determining the transmission parameter, the memory is read according to a parameter such as a synchronization signal currently required to be transmitted to form the transmission parameter.
- the specific structure of the second sending unit 220 may be a transmitting antenna or a transmitting antenna array, such as a Massive antenna array, etc., configured to send a synchronization signal and a second time index according to the sending parameter.
- the sending parameter may be a parameter such as a sending time interval of the two signals, and may be different according to the time of sending the signal, and specifically includes the following:
- the time index is a second time index, and one of the synchronization signals includes a primary synchronization signal and a secondary synchronization signal;
- the sending time interval between the primary synchronization signal and the secondary synchronization signal is a first time interval
- the sending parameter is the first time interval; the time index is a second time index;
- the first time interval is characterized by a second time index
- the correspondence between the first time interval and the second time index is configured by using predefined or higher layer signaling.
- N1 of the synchronization signals adopt S1 different synchronization sequences, where N1 ⁇ S1>0;
- the sending parameter is the synchronization sequence;
- the time index is a second time index;
- the correspondence between the synchronization sequence and the second time index is configured by using predefined or higher layer signaling.
- the downlink signal further includes a discovery signal; the sending parameter is a beam index carried by the discovery signal; and the time index is a third time index;
- the correspondence between the beam index and the third time interval is configured by pre-defined or higher layer signaling.
- the downlink signal further includes a discovery signal
- the sending parameter is a discovery sequence of the discovery signal; the time index is a third time index;
- the correspondence between the discovery sequence and the third time index is configured by pre-defined or higher layer signaling.
- the downlink signal further includes a discovery signal
- the transmission time interval between the synchronization signal and the discovery signal is a second time interval
- the sending parameter is the second time interval; the time index is a fourth time index;
- Corresponding relationship between the second time interval and the fourth time index is configured by pre-defined or high-level signaling
- the sending parameter is a synchronization signal index of the synchronization signal and a discovery signal index of the discovery signal; the time index is a fourth time index;
- Corresponding relationship between the combination of the synchronization signal index and the signaling signal index and the first time index is configured by pre-defined or higher layer signaling;
- the sending parameter includes the synchronization signal index, a discovery signal index, and the second time interval;
- the time index is a fourth time index
- the correspondence between the synchronization signal index, the discovery signal index, and the combination of the second time interval and the fourth time index is configured by pre-defined or higher layer signaling.
- the second sending unit is further configured to send the first time index in the time index by using a system message, dedicated signaling, or high layer signaling;
- the first time index is used together with the other time index in the time index for determining, by the terminal, a time index of the synchronization signal sending time; specifically, in the first time index and the mode one to the seventh mode.
- the time indices together constitute an index for indicating the timing of the synchronization signal transmission.
- the terminal in the embodiment provides a hardware support for the synchronization signal sending time determining method in the third embodiment, and can be used to implement the technical solution in the synchronous writing and sending time determining method described in any of the third embodiments.
- the same has the advantages of synchronization accuracy and simple implementation.
- the embodiment provides a communication system, where the system includes:
- the base station 310 is configured to send a synchronization signal and a first time index; the first time index is configured to indicate a sending time of the synchronization signal;
- the terminal 320 is configured to receive the synchronization signal, the first time index, and determine a transmission time of the synchronization signal according to the first time index.
- the base station will send an application scenario of multiple synchronization signals.
- the base station 310 and the terminal 320 are connected by a mobile communication network, and the second generation communication, the third generation communication, the fourth communication or the fifth generation communication is used for information interaction.
- the base station 310 may be different according to the difference between the terminal 320 and the mobile communication network.
- the base station may be an eNB;
- the terminal may be a mobile communication terminal such as a smart phone or a tablet.
- the communication system in this embodiment provides hardware support for the method for determining the synchronization signal transmission time according to the fourth embodiment, and can be used to implement any technical solution of the method described in the embodiment, and has the same high synchronization precision and simple implementation.
- the base station may further send a synchronization signal according to a manner agreed in advance with the terminal, determine a transmission parameter before transmitting the synchronization signal, and send a downlink including the synchronization signal to the terminal according to the transmission parameter, and the terminal indexes according to the first time.
- the transmission parameter of the downlink signal forms a third time index for determining the transmission time of the synchronization signal, and determines the synchronization signal transmission time according to the third time index.
- the communication system of the embodiment of the present invention provides hardware support for the method in the fourth embodiment, and can be used to implement the technical solution described in any of the fourth embodiments, and has the advantages of simple synchronization and high accuracy. .
- This embodiment also provides a communication system, the system comprising:
- the base station is configured to determine a sending parameter according to a correspondence between different synchronization signals and a time index, and send a downlink signal including the synchronization signal according to the sending parameter, where the sending parameter is configured to represent the time index;
- the time index is used for the terminal to determine the same The time index of the step signal transmission time;
- the terminal is configured to receive the downlink signal including the synchronization signal, acquire a transmission parameter of the downlink signal, and send the transmission parameter to a time index; and determine, according to the time index, a transmission time of the synchronization signal.
- the synchronization signal is transmitted between the base station and the terminal; and the synchronization signal is formed and transmitted according to a pre-agreed manner; therefore, when the base station transmits the downlink signal including the synchronization signal, First, the transmission parameter is formed according to the content agreed with the terminal in advance; the terminal can accurately acquire the transmission time of the synchronization signal according to the synchronization signal and the second time index formed according to the transmission parameter, thereby achieving accurate synchronization, and is particularly suitable for the synchronization period.
- the application scenario in which the base station will send multiple synchronization signals.
- the base station and the terminal are connected by using a mobile communication network, and the second generation communication, the third generation communication, the fourth communication or the fifth generation communication are used for information interaction.
- the base station may be different according to the terminal and its mobile communication network.
- the base station when the base station is connected with a third generation communication or a communication network of a third generation or higher, the base station may be an eNB; the terminal It can be a mobile communication terminal such as a smartphone or a tablet.
- the communication system of the embodiment of the present invention provides hardware support for the method in the fifth embodiment, and can be used to implement the technical solution described in any of the fifth embodiments, and has the advantages of synchronization and high accuracy. .
- the embodiment of the present invention further describes a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are configured to perform at least one of the methods in the embodiments of the present invention; A method as shown in one or more of Figures 1, 2, 4 and 5.
- the computer storage medium may be: a removable storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. It is preferably a non-transitory storage medium.
- the base station transmits at least one of the following signals and/or information by using the N downlink beams: a downlink synchronization signal, a downlink discovery signal, and downlink system information.
- the base station transmits the time block indicated by the beam 0; 102, the time block indicated by the base station transmits the beam 1; 103, and the base station transmits the time block indicated by the beam 2; In the time block indicated by the base station transmitting beam 3; 105, the base station transmits the beam 4; the base station transmits the beam 5; wherein the Nms time interval can be regarded as a synchronization period.
- the above time block can be a sub-frame, a micro-frame or a transmission unit or a custom time-collector unit.
- the base station when the base station transmits the synchronization signal, the base station indicates the transmission beam of the corresponding time domain unit through the synchronization signal, and simultaneously indicates the downlink synchronization signal.
- the base station pre-defines a plurality of synchronization signals for transmission on the same time domain unit X using a plurality of sequences.
- the terminal detects the multiple synchronization signals by using multiple synchronization signal sequences in multiple time domain unit positions, and when the terminal detects that the synchronization signal meets a certain threshold requirement on the corresponding time domain unit X, and the corresponding synchronization signal sequence index is Y, at this time, the terminal can obtain a beam index according to the index Y, and can obtain timing synchronization according to the time domain unit.
- the time domain unit X is pre-defined on the 0th microframe of the 5 ms time interval, at which time the terminal can obtain all the corresponding timing relationships.
- the base station transmits at least one of the following signals and information by using the N downlink beams on the carrier: a downlink synchronization signal, a downlink discovery signal, and downlink system information.
- a downlink synchronization signal When the base station transmits the synchronization signal on the carrier, the base station indicates the synchronization information through the synchronization signal.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station notifies the terminal in the time domain unit that the synchronization signal is detected by the CRC plus code bit of the carrier through system message, thereby instructing the terminal to perform a synchronization operation, the system message and the synchronization signal have a corresponding relationship, and has a predefined time domain sum. / or the frequency domain position difference.
- Time domain unit index 0 Time domain unit index 0 1 Time domain unit index 1 ... ... X Time domain unit index X
- the terminal obtains a synchronization signal that meets the threshold requirement by detecting the synchronization signal on the carrier, and detects the system message according to the predefined time domain and/or frequency domain position difference, and uses the CRC scrambling bit sequence of the system message to detect The synchronization signal and the time domain unit index in which the system message is located.
- the correspondence between the CRC scrambling bit sequence of the system message and the time domain unit index is predefined, or the CRC scrambling bit sequence and the time domain unit of the carrier system message are configured by another base station or carrier high layer signaling. Correspondence of the index, the corresponding relationship is as described in Table 2.
- CRC scrambling bit sequence for system messages Time domain unit
- CRC scrambling bit sequence of system message 0 Time domain unit index 0
- the base station transmits at least one of the following signals and information by using the N downlink beams on the carrier: a downlink synchronization signal, a downlink discovery signal, and downlink system information.
- a downlink synchronization signal When the base station transmits the synchronization signal on the carrier, the base station indicates the synchronization information through the synchronization signal.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station indicates a bit or sequence in the time domain index in the carrier through system message.
- the terminal corresponds to detecting the time domain unit of the synchronization signal, thereby instructing the terminal to perform a synchronization operation, and the system message and the synchronization signal have a corresponding relationship, and have a predefined time domain and/or frequency domain position difference.
- the terminal obtains a synchronization signal that meets a threshold requirement by detecting a synchronization signal on the carrier, and detects a system message according to a predefined time domain and/or frequency domain position difference, and uses a time domain index indication bit or sequence in the system message to detect Obtaining the synchronization signal and the time domain unit index where the system message is located.
- the time domain index indication bit or the correspondence between the bit sequence and the time domain unit index in the system message is predefined, or the time domain index indication bit in the carrier system message is configured by another high layer signaling of the base station or the carrier. Correspondence between the bit sequence and the time domain unit index, which are described in Table 3.
- Time domain index indication bit or bit sequence in system message Time domain unit Time domain index indication bit or bit sequence 0 in the system message Time domain unit index 0
- the base station uses the N downlink beams to transmit at least one of the following signals and information on the carrier: the downlink synchronization signal, the downlink discovery signal, and the downlink system information, which may substantially cover an area that the base station needs to cover.
- the base station transmits the synchronization signal on the carrier, the base station indicates the synchronization information through the synchronization signal.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station in the carrier through system message, the time domain index indication bit/sequence and the CRC scrambling bit sequence combination of the system message notify the terminal to detect the time domain unit of the synchronization signal, thereby instructing the terminal to perform a synchronization operation, the system message and
- the synchronization signal has a correspondence and has predefined time domain and/or frequency domain bits. Poor.
- the terminal obtains a synchronization signal that meets a threshold requirement by detecting a synchronization signal on the carrier, and detects a system message according to a predefined time domain and/or frequency domain position difference, and uses a time domain index indication bit/sequence and system in the system message.
- the CRC scrambling bit sequence combination of the message is detected to obtain the synchronization signal and the time domain unit index where the system message is located.
- the time domain index indication bit/sequence in the system message and the correspondence between the CRC scrambling bit sequence combination of the system message and the time domain unit index are predefined, or the carrier is configured by another base station or carrier high layer signaling.
- the time domain index in the system message indicates the correspondence between the bit/sequence and the CRC scrambling bit sequence combination of the system message and the time domain unit index, which are described in Table 4.
- the base station uses the N downlink beams to transmit at least one of the following signals and information on the carrier: the downlink synchronization signal, the downlink discovery signal, and the downlink system information, which may substantially cover an area that the base station needs to cover.
- the base station transmits a synchronization signal on the carrier
- the base station passes The over-synchronization signal indicates synchronization information.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station notifies the terminal through the synchronization signal sequence that the terminal correspondingly detects the time domain unit of the synchronization signal, thereby instructing the terminal to perform a synchronization operation.
- the terminal obtains a synchronization signal that meets the threshold requirement by detecting the synchronization signal on the carrier, and obtains a correspondence between the synchronization signal sequence and the time domain unit index according to the correspondence between the predefined synchronization signal sequence and the time domain unit index.
- the time domain unit of the detection time The correspondence between the synchronization signal sequence and the time domain unit index is predefined, or the correspondence between the carrier synchronization signal sequence and the time domain unit index is configured by another base station or carrier high layer signaling, where the correspondence relationship is as follows. Table 5 is described.
- Synchronization signal sequence Time domain unit Synchronization signal sequence 0 Time domain unit index 0 Synchronization signal sequence 1 Time domain unit index 1 ... ... Synchronization signal sequence X Time domain unit index X
- the base station uses the N downlink beams to transmit at least one of the following signals and information on the carrier: the downlink synchronization signal, the downlink discovery signal, and the downlink system information, which may substantially cover an area that the base station needs to cover.
- the base station When the base station transmits the synchronization signal on the carrier, the base station indicates the synchronization information through the synchronization signal.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station notifies the terminal to detect the time domain unit of the synchronization signal at the time interval when the carrier passes the primary synchronization and the secondary synchronization signal, thereby instructing the terminal to perform the synchronization operation.
- the terminal obtains a synchronization signal that meets a threshold requirement by detecting a synchronization signal on the carrier. And obtaining, according to the correspondence between the time domain interval of the primary synchronization and the secondary synchronization signal and the time domain unit index, the time corresponding to the detection time by the time domain interval of the primary synchronization and the secondary synchronization signal and the time domain unit index correspondence Domain unit.
- the correspondence between the time domain interval of the primary synchronization and the secondary synchronization signal and the time domain unit index is predefined, or the time interval of the primary synchronization and secondary synchronization signals is configured by another high layer signaling of the base station or carrier. Correspondence relationship with the time domain unit index, which is as described in Table 6.
- Time interval type of primary and secondary sync signals Time domain unit Time interval type 0 of primary and secondary sync signals Time domain unit index 0
- Time interval type 1 for primary and secondary sync signals Time domain unit index 1 ... ...
- Time interval type X of primary and secondary sync signals Time domain unit index X
- the base station uses the N downlink beams to transmit at least one of the following signals and information on the carrier: the downlink synchronization signal, the downlink discovery signal, and the downlink system information, which may substantially cover an area that the base station needs to cover.
- the base station When the base station transmits the synchronization signal on the carrier, the base station indicates the synchronization information through the synchronization signal.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station notifies the terminal to detect the time domain unit of the synchronization signal at the time interval when the carrier passes the downlink synchronization and the discovery signal, thereby instructing the terminal to perform the synchronization operation.
- the terminal obtains a synchronization signal that satisfies the threshold requirement by detecting the synchronization signal on the carrier, and passes the downlink synchronization and the time of discovering the signal according to the correspondence between the predefined downlink synchronization and the time interval of the discovery signal and the time domain unit index.
- the interval and the time domain unit index correspondence obtain the time domain unit corresponding to the detection time.
- the time interval between the downlink synchronization and the discovery signal is Corresponding relationship between the time domain unit index and the time domain unit index is configured by using a higher layer signaling of another base station or carrier, and the correspondence between the time interval of the carrier downlink synchronization and the discovery signal and the time domain unit index is as follows. 7 stated.
- Time domain unit index 0 Time domain unit index 0
- Downlink synchronization and discovery signal interval type 1 Time domain unit index 1 ... ...
- Downstream synchronization and discovery signal interval type X Time domain unit index X
- the base station uses the N downlink beams to transmit at least one of the following signals and information on the carrier: the downlink synchronization signal, the downlink discovery signal, and the downlink system information, which may substantially cover an area that the base station needs to cover.
- the base station When the base station transmits the synchronization signal on the carrier, the base station indicates the synchronization information through the synchronization signal.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station notifies the terminal in the time domain unit that the synchronization signal is detected by the combination of the synchronization signal sequence and the time interval of the downlink synchronization and the discovery signal, thereby instructing the terminal to perform the synchronization operation.
- the terminal obtains a synchronization signal that meets a threshold requirement by detecting a synchronization signal on the carrier, and according to a pre-defined synchronization signal sequence and a correspondence between a combination of a time interval of a downlink synchronization and a discovery signal and a time domain unit index, through the synchronization.
- the signal sequence and the combination of the time interval of the downlink synchronization and the discovery signal and the time domain unit index correspondence obtain the time domain unit corresponding to the detection time.
- the synchronization signal sequence and the correspondence between the time interval of the downlink synchronization and the discovery signal and the time domain unit index are predefined, or the carrier synchronization signal sequence and the downlink synchronization are configured by another base station or carrier high layer signaling. Correspondence between the combination of the time interval of the discovery signal and the time domain unit index, as described in Table 8.
- the base station uses the N downlink beams to transmit at least one of the following signals and information on the carrier: the downlink synchronization signal, the downlink discovery signal, and the downlink system information, which may substantially cover an area that the base station needs to cover.
- the base station When the base station transmits the synchronization signal on the carrier, the base station indicates the synchronization information through the synchronization signal.
- the base station transmits, on the carrier, a plurality of synchronization signals in a plurality of time domain units in a time division manner, for example, Table 1.
- the base station notifies the terminal in the time domain unit that the synchronization signal is detected by the combination of the synchronization signal sequence and the time interval of the primary synchronization and the secondary synchronization signal, thereby instructing the terminal to perform a synchronization operation.
- the terminal obtains a synchronization signal that satisfies a threshold requirement by detecting a synchronization signal on the carrier, and passes the synchronization according to a predefined synchronization signal sequence and a correspondence between a combination of a primary synchronization and a secondary synchronization signal time interval and a time domain unit index.
- the signal sequence and the combination of the primary synchronization and the secondary synchronization signal time interval and the time domain unit index correspondence obtain the time domain unit corresponding to the detection time.
- the synchronization signal sequence and the correspondence between the primary synchronization and the secondary synchronization signal time interval and the time domain unit index are predefined, or the carrier synchronization signal sequence and the primary synchronization are configured by another base station or carrier high layer signaling.
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Abstract
本发明公开了一种同步信号发送时间确定方法、终端、基站及通信系统。所述同步信号发送时间确定方法包括:接收同步信号;获取所述同步信号的时间索引;及依据所述时间索引确定所述同步信号的发送时间。本发明还同时公开了一种计算机存储介质。
Description
本发明涉及通信领域的同步技术,尤其涉及一种同步信号发送时间确定方法、终端、基站、系统和存储介质。
在通信过程中,为了方便终端通过基站接入网络与其他终端或网络设备进行信息交互,终端需要和基站进行同步。所述同步包括时间同步和频率同步,此外,终端可可能需要检测发现信号来获得最优波束索引信息。但是随着通信技术的发展,终端与基站交互的信号及信令越来越多,同步的精确度要求也越来越高,故在当前通信愈加复杂的通信环境下,如何实现终端与基站之间的同步,如何提高终端与基站之间的同步精确度是现有技术亟待解决的问题。
发明内容
有鉴于此,本发明期望提供一种同步信号发送时间确定方法、终端、基站及通信系统和存储介质,以实现终端与基站之间的同步。
为达到上述目的,本发明实施例的技术方案是这样实现的:
本发明实施例第一方面提供一种同步信号发送时间确定方法,所述方法包括:
接收同步信号;
获取所述同步信号的时间索引;
依据所述时间索引确定所述同步信号的发送时间。
优选地,
所述时间索引为第一时间索引、第二时间索引、第三时间索引、第四时间索引、第五时间索引、第六时间索引或第七时间索引;
所述获取所述同步信号的时间索引为:
获取基站通过系统消息、专用信令或高层信令发送的所述第一时间索引;
或
依据基站发送的同步信号获取所述第二时间索引;
或
依据基站发送的发现信号获取所述第三时间索引;
或
依据基站发送的同步信号和发现信号获取所述第四时间索引;
或
依据所述第一时间索引及所述第二时间索引,获取第五时间索引;
或
依据所述第一时间索引及所述第三时间索引,获取第六时间索引;
或
依据所述第一时间索引及所述第四时间索引,获取第七时间索引。
优选地,
所述获取基站通过系统消息发送的所述第一时间索引为:
根据预定义的或者高层信令配置的系统消息的加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定所述第一时间索引。
优选地,
一个所述同步信号包括主同步信号和辅同步信号;
所述接收同步信号为:
分别接收所述主同步信号及所述辅同步信号;
所述依据基站发送的同步信号获取第二时间索引包括:
依据接收所述主同步信号与所述辅同步信号的时间间隔,确定所述主同步信号和辅同步信号的发送时间间隔;所述发送时间间隔为第一时间间隔;
根据预定义的或者高层信令配置的所述第一时间间隔与所述第二时间索引的对应关系,确定第二时间索引。
优选地,
N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述依据基站发送的同步信号获取第二时间索引包括:
提取所述同步信号所对应的同步序列;
根据预定义的或者高层信令配置的同步序列与所述第二时间索引的对应关系,确定第二时间索引。
优选地,
所述依据基站发送的发现信号获取所述第三时间索引包括:
接收发现信号;
提取所述发现信号所对应的发现序列;
根据预定义的或者高层信令配置的发现序列与所述第三时间索引的对应关系,确定所述第三时间索引;
其中,N2个所述发现信号采用S2个不同的发现序列,且N2≥S2>0。
优选地,
所述依据基站发送的发现信号获取所述第三时间索引包括:
接收发现信号;所述发现信号承载有波束索引;
根据预定义的或者高层信令配置的波束索引与所述第三时间索引的对应关系,确定所述第三时间索引。
优选地,
所述方法还包括接收发现信号;
所述依据基站发送的同步信号和发现信号获取第四时间索引包括:
依据接收所述同步信号和所述发现信号的时间间隔,确定所述同步信号与所述发送信号的发送时间间隔;所述发送时间间隔为第二时间间隔;
根据预定义的或者高层信令配置的同步信号和所述发现信号的第二时间间隔与所述第二时间索引的对应关系,确定第四时间索引;
或
依据所述同步信号确定同步信号索引;
依据所述发现信号确定发现信号索引;
依据预定义的或者高层信令配置的所述同步序号索引和所述发现信号索引的组合与第四时间索引的对应关系,确定第四时间索引;
或者,
依据所述同步信号确定同步信号索引;
依据所述发现信号确定发现信号索引;
确定所述同步信号与所述发现信号的发送时间间隔;所述时间间隔为第二时间间隔;
根据预定义的或者高层信令配置的同步信号序列索引、所述发现信号索引与第二时间间隔的组合与所述第二时间索引的对应关系,确定第四时间索引。
优选地,
所述时间索引包括以下索引至少之一:为传输符号索引、微帧索引、子帧索引及时域单元索引。
本发明实施例第二方面提供一种同步信号发送时间确定方法,所述方法包括:
发送同步信号;
发送所述同步信号的第一时间索引;
所述第一时间索引用于确定所述同步信号的发送时间。
优选地,
所述发送所述同步信号的第一时间索引为:
通过系统消息、专用信息或高层信令发送所述第一时间索引。
优选地,
所述通过系统消息发送所述第一时间索引为:
根据预定义的或者高层信令配置的系统消息的加扰比特序列系统消息的加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列的组合所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对
应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送。
本发明实施例第三方面提供一种同步信号发送时间确定方法,所述方法包括:
依据不同同步信号与时间索引的对应关系确定发送参数;
依据所述发送参数,发送包括所述同步信号的下行信号;
其中,所述发送参数用于表征所述时间索引;
所述时间索引为用于终端确定所述同步信号发送时间的时间索引。
优选地,
所述时间索引为第二时间索引;
一个所述同步信号包括主同步信号和辅同步信号;
所述主同步信号与所述辅同步信号的发送时间间隔为第一时间间隔;
所述发送参数为所述第一时间间隔;所述时间索引为第二时间索引;
所述第一时间间隔表征为第二时间索引;
其中,所述第一时间间隔与第二时间索引的对应关系是通过预定义或高层信令配置的。
优选地,
N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述发送参数为所述同步序列;所述时间索引为第二时间索引;
其中,所述的同步序列与所述第二时间索引的对应关系是通过预定义或高层信令配置的。
优选地,所述下行信号还包括发现信号;
所述发送参数为所述发现信号承载的波束索引;所述时间索引为第三
时间索引;
所述波束索引与所述第三时间间隔的对应关系是通过预定义或高层信令配置的。
优选地,
所述下行信号还包括发现信号;
所述发送参数为所述发现信号的发现序列;所述时间索引为第三时间索引;
所述发现序列与所述第三时间索引的对应关系是是通过预定义或高层信令配置的。
优选地,所述下行信号还包括发现信号;
所述同步信号与所述发现信号之间的发送时间间隔为第二时间间隔;
所述发送参数为所述第二时间间隔;所述时间索引为第四时间索引;
所述第二时间间隔与所述第四时间索引的对应关系是通过预定义或高层信令配置的;
或
所述发送参数为所述同步信号的同步信号索引和所述发现信号的发现信号索引;所述时间索引为第四时间索引;
所述同步信号索引和所述发信信号索引的组合与所述第时间索引的对应关系是通过预定义或高层信令配置的;
或
所述发送参数包括所述同步信号索引、发现信号索引及所述第二时间间隔;
所述时间索引为第四时间索引;
所述同步信号索引、发现信号索引及所述第二时间间隔的组合与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
优选地,
所述方法还包括通过系统消息、专用信令或高层信令发送所述时间索引中的第一时间索引;
所述第一时间索引与所述时间索引中的其他时间索引共同用于终端确定所述同步信号发送时间的时间索引。
本发明实施例第四方面提供一种同步信号发送时间确定方法,所述同步信号发送时间确定方法包括:
基站发送同步信号;
终端接收所述同步信号;
基站发送第一时间索引;所述第一时间索引用于指示所述同步信号的发送时间;
终端接收所述第一时间索引;
终端依据所述第一时间索引确定所述同步信号的发送时间。
本发明实施例第五方面提供一种同步信号发送时间确定方法,所述同步信号发送时间确定方法包括:
基站依据不同同步信号与时间索引的对应关系,确定发送参数;
基站依据所述发送参数,发送包括所述同步信号的下行信号;
其中,所述发送参数用于表征所述时间索引;
所述时间索引为用于终端确定所述同步信号发送时间的时间索引;
终端接收所述包括同步信号的下行信号;
终端获取所述下行信号的发送参数及依据所述发送参数确定时间索引;
终端依据所述时间索引确定所述同步信号的发送时间。
本发明实施例第六方面提供一种终端,所述终端包括:
接收单元,配置为接收同步信号;
获取单元,配置为获取所述同步信号的时间索引;
第一确定单元,配置为依据所述时间索引确定所述同步信号的发送时间。
优选地,
所述时间索引为第一时间索引、第二时间索引、第三时间索引、第四时间索引、第五时间索引、第六时间索引或第七时间索引;
所述获取单元,配置为
获取基站通过系统消息、专用信令或高层信令发送的所述第一时间索引;
或
依据基站发送的同步信号获取所述第二时间索引;
或
依据基站发送的发现信号获取所述第三时间索引;
或
依据基站发送的同步信号和发现信号获取所述第四时间索引;
或
依据所述第一时间索引及所述第二时间索引,获取第五时间索引;
或
依据所述第一时间索引及所述第三时间索引,获取第六时间索引;
或
依据所述第一时间索引及所述第四时间索引,获取第七时间索引。
优选地,
所述获取单元,配置为
根据预定义的或者高层信令配置的系统消息的加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定所述第一时间索引。
优选地,
一个所述同步信号包括主同步信号和辅同步信号;
所述接收单元,配置为分别接收所述主同步信号及所述辅同步信号;
所述获取单元,配置为依据接收所述主同步信号与所述辅同步信号的时间间隔,确定所述主同步信号和辅同步信号的发送时间间隔;所述发送
时间间隔为第一时间间隔;及根据预定义的或者高层信令配置的所述第一时间间隔与所述第二时间索引的对应关系,确定第二时间索引。
优选地,
N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述获取单元,配置为提取所述同步信号所对应的同步序列;及根据预定义的或者高层信令配置的同步序列与所述第二时间索引的对应关系,确定第二时间索引。
优选地,
所述获取单元,配置为接收发现信号;提取所述发现信号所对应的发现序列;及根据预定义的或者高层信令配置的发现序列与所述第三时间索引的对应关系,确定所述第三时间索引;
其中,N2个所述发现信号采用S2个不同的发现序列,且N2≥S2>0。
优选地,
所述获取单元,还配置为接收发现信号;所述发现信号承载有波束索引;及根据预定义的或者高层信令配置的波束索引与所述第三时间索引的对应关系,确定所述第三时间索引。
优选地,
所述获取单元,配置为接收发现信号;依据接收所述同步信号和所述发现信号的时间间隔,确定所述同步信号与所述发送信号的发送时间间隔;所述发送时间间隔为第二时间间隔;及根据预定义的或者高层信令配置的同步信号和所述发现信号的第二时间间隔与所述第四时间索引的对应关系,确定第四时间索引;
或
依据所述同步信号确定同步信号索引;依据所述发现信号确定发现信号索引;及依据预定义的或者高层信令配置的所述同步序号索引和所述发
现信号索引的组合与第四时间索引的对应关系,确定第四时间索引;
或
依据所述同步信号确定同步信号索引;依据所述发现信号确定发现信号索引;及确定所述同步信号与所述发现信号的发送时间间隔;所述时间间隔为第二时间间隔;
根据预定义的或者高层信令配置的同步信号序列索引、所述发现信号索引与第二时间间隔的组合与所述第二时间索引的对应关系,确定第四时间索引。
优选地,
所述时间索引包括以下索引至少之一:为传输符号索引、微帧索引、子帧索引及时域单元索引。
本发明实施例第七方面提供一种基站,所述基站包括:
第一发送单元,配置为发送同步信号及第一时间索引;
所述第一时间索引配置为终端确定所述同步信号的发送时间。
优选地,
所述第一发送单元,具体配置为通过系统消息、专用信息或高层信令发送所述第一时间索引。
优选地,
所述第一发送单元,具体配置为根据预定义的或者高层信令配置的系统消息的加扰比特序列系统消息的加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
或
根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送。
本发明实施例第八方面提供一种基站,所述基站包括:
第二确定单元,配置为依据不同同步信号与时间索引的对应关系,确定发送参数;
第二发送单元,配置为依据所述发送参数,发送包括所述同步信号的下行信号;
其中,所述发送参数用于表征所述时间索引;
所述时间索引为配置为终端确定所述同步信号发送时间的时间索引。
优选地,
所述时间索引为第二时间索引;
一个所述同步信号包括主同步信号和辅同步信号;
所述主同步信号与所述辅同步信号的发送时间间隔为第一时间间隔;
所述发送参数为所述第一时间间隔;所述时间索引为第二时间索引;
所述第一时间间隔表征为第二时间索引;
其中,所述第一时间间隔与第二时间索引的对应关系是通过预定义或高层信令配置的。
优选地,
N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述发送参数为所述同步序列;所述时间索引为第二时间索引;
其中,所述的同步序列与所述第二时间索引的对应关系是通过预定义或高层信令配置的。
优选地,
所述下行信号还包括发现信号;所述发送参数为所述发现信号承载的波束索引;所述时间索引为第三时间索引;
所述波束索引与所述第三时间间隔的对应关系是通过预定义或高层信令配置的。
优选地,
所述下行信号还包括发现信号;
所述发送参数为所述发现信号的发现序列;所述时间索引为第三时间索引;
所述发现序列与所述第三时间索引的对应关系是是通过预定义或高层信令配置的。
优选地,
所述下行信号还包括发现信号;
所述同步信号与所述发现信号之间的发送时间间隔为第二时间间隔;
所述发送参数为所述第二时间间隔;所述时间索引为第四时间索引;
所述第二时间间隔与所述第四时间索引的对应关系是通过预定义或高层信令配置的;
或
所述发送参数为所述同步信号的同步信号索引和所述发现信号的发现信号索引;所述时间索引为第四时间索引;
所述同步信号索引和所述发信信号索引的组合与所述第时间索引的对应关系是通过预定义或高层信令配置的;
或
所述发送参数包括所述同步信号索引、发现信号索引及所述第二时间间隔;
所述时间索引为第四时间索引;
所述同步信号索引、发现信号索引及所述第二时间间隔的组合与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
优选地,
所述第二发送单元,还配置为通过系统消息、专用信令或高层信令发送所述时间索引中的第一时间索引;
所述第一时间索引与所述时间索引中的其他时间索引共同用于终端确定所述同步信号发送时间的时间索引。
本发明实施例第九方面提供一种通信系统,所述系统包括:
基站,配置为发送同步信号及第一时间索引;所述第一时间索引配置为指示所述同步信号的发送时间;
终端,配置为接收所述同步信号、所述第一时间索引及依据所述第一时间索引确定所述同步信号的发送时间。
本发明第十方面提供一种通信系统,所述系统包括:
基站,配置为依据不同同步信号与时间索引的对应关系,确定发送参数;依据所述发送参数,发送包括所述同步信号的下行信号;其中,所述发送参数用于表征所述时间索引;所述时间索引为用于终端确定所述同步信号发送时间的时间索引;
终端,配置为接收所述包括同步信号的下行信号;获取所述下行信号的发送参数,依据所述发送参数确定时间索引;及依据所述时间索引,确定所述同步信号的发送时间。
本发明实施例第十方面提供一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令配置为执行本发明实施例第一方面至第五方面所述方法的至少其中之一。
本发明实施例所述同步信号发送时间确定方法、终端、基站及通信系统和计算机存储介质,终端不仅接收同步信号,同时还将获取同步信号的时间索引,从而可以获得同步信号更加精确的同步时间,且用于同步周期内能接收到多个同步信号的终端、基站或通信系统时,终端将根据各个同步信号的时间索引,确定每一个同步信号的发送时间,从而解决了现有技术中同步周期内终端仅知道同步信号位于哪一个同步周期内,而无法精确的获知同步信号位于哪一个子帧、微帧或传输符号等问题;从而提高了终端与基站的同步精度;以方便了终端结合时间索引及同步信号两个信息与基站完成同步。
图1为本发明实施例所述同步信号发送时间确定方法的流程示意图之一;
图2为本发明实施例所述同步信号发送时间确定方法的流程示意图之二;
图3为本发明实施例所述同步信号发送时间确定方法的流程示意图之三;
图4为本发明实施例所述同步信号发送时间确定方法的流程示意图之四;
图5为本发明实施例所述同步信号发送时间确定方法的流程示意图之五;
图6为本发明实施例所述终端的结构示意图;
图7为本发明实施例所述基站的结构示意图之一;
图8为本发明实施例所述基站的结构示意图之二;
图9为本发明实施例所述的同步信号与时间的对应关系示意图。
以下结合附图对本发明的优选实施例进行详细说明,应当理解,以下所说明的优选实施例仅用于说明和解释本发明,并不用于限定本发明。
实施例一:
如图1所示,本实施例提供一种同步信号发送时间确定方法,所述方法包括:
步骤S110:接收同步信号;
步骤S120:获取所述同步信号的时间索引;
步骤S130:依据所述时间索引确定所述同步信号的发送时间。
终端在一个同步周期内可能接收至少两个同步信号;具体的如同一时间接收到多个不同的同步信号以及不同时间接收到多个相同或不同的同步信号。若终端在一个同步周期内将接收到至少两个同步信号时,如何确定每一个同步信号的发送时间;在本实施例中终端还包括获取对应同步信号
的时间索引的步骤。所述时间索引用来确定所述同步信号的发送时间;所述发送时间可以具体的是某一发送时刻,也可以对应于一个发送时间段,如子帧、微帧或OFDM符号或自定义的时域单元等。
在执行完步骤S130后,终端将根据接收的同步信号及步骤S130中所述确定的发送时间,校正与基站的同步,同步将更加精确。
所述步骤S110和步骤S120没有一定的先后顺序;可以同时执行,也可先后执行;具体的可以步骤S110在所述步骤S120之前,也可以所述步骤S120在所述步骤S110之前。
进一步地,
所述时间索引为第一时间索引、第二时间索引、第三时间索引、第四时间索引、第五时间索引、第六时间索引或第七时间索引。依据所述时间索引的不同,获取所述时间索引的方法也不同;具体的如:
获取基站通过系统消息、专用信令或高层信令发送的所述第一时间索引。
依据基站发送的同步信号获取所述第二时间索引。
依据基站发送的发现信号获取所述第三时间索引。
依据基站发送的同步信号和发现信号获取所述第四时间索引。
依据所述第一时间索引及所述第二时间索引,获取第五时间索引。
依据所述第一时间索引及所述第三时间索引,获取第六时间索引。
依据所述第一时间索引及所述第四时间索引,获取第七时间索引。
所述时间索引可为传输符号索引、微帧索引、子帧索引或及时域单元索引的至少其中之一。
一个无线帧可分为多个子帧;一个子帧又可分为多个微帧;一个同步周期通常包括一个或多个子帧。
所述传输符号具体的可为OFDM符号;所述OFDM符号为正交频分复
用符号对应了频域和时域一定数量的资源。所述传输符号索引为指示了具体哪一个传输符号的索引。故当所述第一时间索引为传输符号索引,即指示了该同步信号在该传输符号上传输;从而基站和终端同步的时间精度为一个传输符号;通常一个同步周期包括很多个传输符号。显然一个传输符号所对应的时间精度高于一个同步周期所对应的时间精度。
所述时域单元为预先定义的时间长度;可包括一个或多个微帧或传输符号。通过自定义时域单元可自行确定同步精度;提高系统的可控性。
在本实施例中,通过系统消息、专用信令或高层信令接收所述第一时间索引。
将所述第一时间索引承载在系统消息、发现信号或高层信令等这些现有技术中已存在的消息或信令中,不会增加终端从基站接收消息的次数,可以延迟待机时间。在具体的时间过程中,所述发现信号与同步信号可能是同一信号,也可能是先后发送的不同信号,但是发送的时间很邻近,从而可以用发现信号来发送所第一时间索引,可实现较为简便。
所述第一时间索引可以一个专用的字段或比特位图等方式来表示,在本实施例中为了降低下行链路的开销,将第一时间索引与其他消息复合在同一序列或同一字段中,终端接收所述第一时间索引包括接收系统消息,在接收所述系统消息之后,还可包括:
根据预定义的或者高层信令配置的系统消息的加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系
统消息的加扰比特序列的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;
或
根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定所述第一时间索引。
其中,系统信息原始比特串进行CRC编码后形成系统信息第一比特序列,然后对系统信息第一比特序列进行信道编码后形成所述系统信息比特序列,对所述系统信息比特序列进行加扰所使用的扰码序列为系统消息的加扰比特序列。
其中,系统信息原始比特串进行CRC编码后形成系统信息第一比特序列,对于第一序列中的CRC比特序列进行加扰使用的扰码序列为系统消息的CRC加扰比特序列。
以下提供几种优选的获取第二时间索引的方法:
方法一:一个所述同步信号包括主同步信号和辅同步信号;
所述接收同步信号为:
分别接收所述主同步信号及所述辅同步信号;
所述依据基站发送的同步信号获取第二时间索引包括:
依据接收所述主同步信号与所述辅同步信号的时间间隔,确定所述主同步信号和辅同步信号的发送时间间隔;所述发送时间间隔为第一时间间隔;
根据预定义的或者高层信令配置的所述第一时间间隔与所述第二时间索引的对应关系,确定第二时间索引。其中,优选地,不同的同步信号的主同步信号与辅同步信号的第一时间间隔不同。
方法二:N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述依据基站发送的同步信号获取第二时间索引包括:
提取所述同步信号所对应的同步序列;
根据预定义的或者高层信令配置的同步序列与所述第二时间索引的对应关系,确定第二时间索引。其中,在具体的实现过程中,一个同步周期内多个同步信号优选采用不同的同步序列。
获取所述第三时间索引的方法有多种,以下提供几种具体的方法:
方法一:
所述依据基站发送的发现信号获取所述第三时间索引包括:
接收发现信号;
提取所述发现信号所对应的发现序列;
根据预定义的或者高层信令配置的发现序列与所述第三时间索引的对应关系,确定所述第三时间索引;
其中,N2个所述发现信号采用S2个不同的发现序列,且N2≥S2>0;在具体的实现过程中,优选地为不同的发现信号所对应的发现序列不同。
方法二:
所述依据基站发送的发现信号获取所述第三时间索引包括:
接收发现信号;所述发现信号承载有波束索引;
根据预定义的或者高层信令配置的波束索引与所述第三时间索引的对应关系,确定所述第三时间索引。在具体的实现过程中,不同同步信号所对应的发现信号的波束索引不同。
以下提供几种获取第四时间索引的优选方式:
方式一:
所述方法还包括接收发现信号;
所述依据基站发送的同步信号和发现信号获取第四时间索引包括:
依据接收所述同步信号和所述发现信号的时间间隔,确定所述同步信号与所述发送信号的发送时间间隔;所述发送时间间隔为第二时间间隔;
根据预定义的或者高层信令配置的同步信号和所述发现信号的第二时间间隔与所述第四时间索引的对应关系,确定第四时间索引。
方式二:
依据所述同步信号确定同步信号索引;
依据所述发现信号确定发现信号索引;
依据预定义的或者高层信令配置的所述同步序号索引和所述发现信号索引的组合与第四时间索引的对应关系,确定第四时间索引;
方式三:
依据所述同步信号确定同步信号索引;
依据所述发现信号确定发现信号索引;
确定所述同步信号与所述发现信号的发送时间间隔;所述时间间隔为第二时间间隔;
根据预定义的或者高层信令配置的同步信号序列索引、所述发现信号
索引与第二时间间隔的组合与所述第二时间索引的对应关系,确定第四时间索引。
具体的获取第五时间索引,为结合获取第一时间索引和第二时间索引的方法;获取第六时间碎银为结合获取第一时间索引与第三时间索引的方法;获取第七时间索引为结合获取第一时间索引与第四时间碎银的方法。
采用上述方法来发送时间索引,能减少下行数据发送量,能减少信令开销。
综合上述本实施例提供了一种同步信号发送时间确定方法,是依据时间索引来确定发送时间的,尤其适配置为同步周期内同时接收到多个同步信号的场景,具有同步精度高及实现简便的优点。
实施例二:
如图2所示,本实施例提供一种同步信号发送时间确定方法,所述方法包括:
步骤S210:发送同步信号;
步骤S220:发送第一时间索引;
步骤S230:所述第一时间索引用于终端确定所述同步信号的发送时间。
通常发送同步信号时,可能在一个同步周期内发送多个同步信号;具体的如同一时间发送多个不同的同步信号以及不同时间发送多个相同或不同的同步信号。
基站同时还将在步骤S220第一时间索引;具体的如发送了同步信号A,则还将发送对应于同步信号A的第一时间索引,用于终端确定同步信号的发送时间。所述发送时间可以是一个具体的时刻,也可以是一个时间段。所述第一时间索引可以是任意与时间有对应关系的信息。
所述步骤S210和步骤S220没有一定的先后顺序;可以同时执行,也可先后执行;具体的可以步骤S210在所述步骤S220之前,也可以所述步
骤S220在所述步骤S1210之前。
发送所述第一时间索引的方式有多种,在本实施例中优选为通过系统消息、专用信令或高层信令来发送所述第一时间索引。
进一步地,所述第一时间索引可为传输符号索引、微帧索引、子帧索引及时域单元索引的至少其中之一。关于所述第一时间索引的构成可参见实施例一中的对应部分,在此就不做进一步的详细说明了。
步骤S220中发送所述第一时间索引的方法有多种,本实施例优选为通过系统消息、专用信令、发现信号或高层信令发送所述第一时间索引。
所述通过系统消息发送第一时间索引方法有多种,以下提供几种优选方式:
所述通过系统消息发送所述第一时间索引为:
优选方式一:
根据预定义的或者高层信令配置的系统消息的加扰比特序列系统消息的加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
优选方式二:
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
优选方式三:
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送
优选方式四:
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系
统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送
优选方式五:
根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送
优选方式六:
根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;
优选方式七:
根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送。
综合上述本实施例提供了基站发送同步信号的同时,还将发送用于同步信号发送时间确定的第一时间索引,便于实现精确同步;并具体提供了几种优选的如何发送第一时间索引的方法,同时具有实现简单便捷的优点。
实施例三:
如图3所示,本实施例提供一种同步信号发送时间确定方法,其中,所述方法包括:
步骤S211:依据不同同步信号与时间索引的对应关系,确定发送参数;
步骤S221:依据所述发送参数,发送包括所述同步信号的下行信号;
其中,所述发送参数用于表征所述时间索引;
所述时间索引为用于终端确定所述同步信号发送时间的时间索引。
所述时间索引可至少包括第二时间索引、第三时间索引及第四时间索引。
当所述时间索引为第二时间索引时,以下提供两种优先的方式实现第二时间索引表征:
方式一:一个所述同步信号包括主同步信号和辅同步信号;
所述主同步信号与所述辅同步信号的发送时间间隔为第一时间间隔;
所述发送参数为所述第一时间间隔;所述时间索引为第二时间索引;
所述第一时间间隔表征为第二时间索引;其中,所述第一时间间隔与第二时间索引的对应关系是通过预定义或高层信令配置的。
方式二:
N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述发送参数为所述同步序列;所述时间索引为第二时间索引;
其中,所述的同步序列与所述第二时间索引的对应关系是通过预定义或高层信令配置的。
在本实施例中利用不同同步信号的本身的发送参数来表征第二时间索引,实现简便。在具体的实现过程中基站侧可预先存储同步信号的发送参数与第二时间索引的对应关系,确定了第二时间索引即确定了每一个同步信号的发送时间。
当所述时间索引为第三时间索引时,所述步骤S221中发送的所述下行信号还包括发现信号;以下为两种优选方式实现第三时间索引的表征:
方式一:所述发送参数为所述发现信号承载的波束索引;所述时间索引为第三时间索引;所述波束索引与所述第三时间间隔的对应关系是通过预定义或高层信令配置的。
方式二:所述发送参数为所述发现信号的发现序列;所述时间索引为第三时间索引;所述发现序列与所述第三时间索引的对应关系是是通过预定义或高层信令配置的。
当所述时间索引为第四时间索引时,所述步骤S221中发送的所述下行
信号还包括发现信号;以下为三种优选方式实现第四时间索引的表征:
方式一:
所述同步信号与所述发现信号之间的发送时间间隔为第二时间间隔;
所述发送参数为所述第二时间间隔;所述时间索引为第四时间索引;
所述第二时间间隔与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
方式二:
所述发送参数为所述同步信号的同步信号索引和所述发现信号的发现信号索引;所述时间索引为第四时间索引;
所述同步信号索引和所述发信信号索引的组合与所述第时间索引的对应关系是通过预定义或高层信令配置的。
方式三:
所述发送参数包括所述同步信号索引、发现信号索引及所述第二时间间隔;
所述时间索引为第四时间索引;
所述同步信号索引、发现信号索引及所述第二时间间隔的组合与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
通过上述方式来发送时间索引能减少信令的开销,且实现简单。
此外,本实施例在上述任一所述的方法还,还包括通过系统消息、专用信令或高层信令的至少其中之一来发送第一时间索引。
所述第一时间索引的具体发送方式可以参见实施例二中所述第一时间索引的方式。
所述第一时间索引将与第二时间索引、第三时间索引及第四时间索引的至少其中一共同用于终端确定同步信号的发送时间。
所述第一时间索引与所述第二时间索引共同构成第五时间索引;第一
时间索引和第三时间索引共同构成了第六时间索引;第一时间索引与第四时间索引共同构成了第七时间索引。
具体的如一个同步信号的发送时间可能需要由4个比特表示;其中第一时间索引表示了其中2个比特,剩余的2个比特由第一时间间隔与该两比特之间的对应关系来表示;故结合第一时间索引与第一时间间隔能确定该同步信号的发送时间。此外,所述第一时间索引和第一时间间隔之间一个可为初级索引,一个可为该初级索引下的次级索引。一个所述初级索引与多个次级索引相对应;结合初级索引和次级索引可具体对一个该同步信号的发送时间。
实施例四:
如图4所示,本实施例提供一种同步信号发送时间确定方法,所述同步信号发送时间确定方法包括:
步骤S310:基站发送同步信号;
步骤S320:终端接收所述同步信号;
步骤S330:基站发送第一时间索引;所述第一时间索引用于指示所述同步信号的发送时间;
步骤S340:终端接收所述第一时间索引;
步骤S350:终端依据所述第一时间索引确定所述同步信号的发送时间。
本实施例是将实施例一的技术方案与实施例二中的技术方案进行了结合。基站所执行的步骤可参照实施例二中任一所述的技术方案;终端所执行的步骤可以参照实施例一中对应于实施例二所述的技术方案。具体如所述第一时间索引是通过系统消息、发现信号或高层信令等方式进行发送的等。
在具体的执行过程中所述步骤S310在所述步骤S320之前,并位于所述步骤S350之前;所述步骤S320在所述步骤S340之前,同时位于所述步
骤S350之前;但是步骤S320与步骤S320之间不必遵循先后顺序。
终端在执行完所述步骤S350之后,将根据所确定的时间与基站进行同步,具有同步精度高,同步实现简便的优点。
实施例五:
如图5所示,本实施例提供一种同步信号发送时间确定方法,所述同步信号发送时间确定方法包括:
步骤S311:基站依据不同同步信号与时间索引的对应关系,确定发送参数;
步骤S321:基站依据所述发送参数,发送包括所述同步信号的下行信号;
其中,所述发送参数用于表征所述时间索引;
所述时间索引为用于终端确定所述同步信号发送时间的时间索引;
步骤S331:终端接收所述包括同步信号的下行信号;
步骤S341:终端获取所述下行信号的发送参数及依据所述发送参数确定时间索引;
步骤S351:终端依据所述时间索引确定所述同步信号的发送时间。
本实施例是将实施例一的技术方案与实施例三中的技术方案进行了结合。基站所执行的步骤可参照实施例三中任一所述的技术方案;终端所执行的步骤可以参照实施例一中对应于实施例三所述的技术方案。具体如所述第一时间索引是通过系统消息、发现信号或高层信令等方式进行发送的等。
具体的所述发送参数可对应一个同步信号的主同步信号与辅同步信号的第一发送时间间隔;亦可以对应同步信号与发现信号之间的第二时间间隔,还可以对应同步序列;具体的可参照实施例三,在此就不再进行赘述了。
实施例六:
如图6所示,本实施例提供一种终端,所述终端包括:
接收单元110,配置为接收同步信号;
获取单元120,配置为获取所述同步信号的时间索引;
第一确定单元130,配置为依据所述时间索引确定所述同步信号的发送时间。
所述接收单元110的接收接口,如接收天线。
所述获取单元120根据获取时间索引的方式不同而不同,具体如直接从基站接收时间索引时,所述获取单元120的具体结构同样可为接收天线,且可为与所述接收单元110对应同一根天线。当所述获取单元120根据所述接收单元110所接收的下行信号提取时间索引时,所述获取单元120的具体结构可处理器等结果,依据事先与终端的约定获取下行信号的发送参数,获取时间索引。
所述时间索引为第一时间索引、第二时间索引、第三时间索引、第四时间索引、第五时间索引、第六时间索引或第七时间索引;
所述获取单元,配置为获取基站通过系统消息、专用信令或高层信令发送的所述第一时间索引;或依据基站发送的同步信号获取所述第二时间索引;或依据基站发送的发现信号获取所述第三时间索引;或依据基站发送的同步信号和发现信号获取所述第四时间索引;或依据所述第一时间索引及所述第二时间索引,获取第五时间索引;或依据所述第一时间索引及所述第三时间索引,获取第六时间索引;或依据所述第一时间索引及所述第四时间索引,获取第七时间索引。
所述获取单元120,配置为根据预定义的或者高层信令配置的系统消息的加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述
第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定所述第一时间索引。
当所述时间索引为第二时间索引时,获取时间索引的方法至少包括以下两种优选方式:
方式一:
一个所述同步信号包括主同步信号和辅同步信号;
所述接收单元110,配置为分别接收所述主同步信号及所述辅同步信号;
所述获取单元120,配置为依据接收所述主同步信号与所述辅同步信号的时间间隔,确定所述主同步信号和辅同步信号的发送时间间隔;所述发送时间间隔为第一时间间隔;及根据预定义的或者高层信令配置的所述第一时间间隔与所述第二时间索引的对应关系,确定第二时间索引。
方式二:
N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述获取单元120,配置为提取所述同步信号所对应的同步序列;及根据预定义的或者高层信令配置的同步序列与所述第二时间索引的对应关
系,确定第二时间索引。
当所述时间索引为第三时间索引时,所述获取单元获取时间索引的方法至少包括以下两种优选方式:
方式一:
所述下行信号还包括发现信号;所述发送参数为所述发现信号承载的波束索引;所述时间索引为第三时间索引;
所述波束索引与所述第三时间间隔的对应关系是通过预定义或高层信令配置的。
方式二:
所述发送参数为所述发现信号的发现序列;所述时间索引为第三时间索引;
所述发现序列与所述第三时间索引的对应关系是是通过预定义或高层信令配置的。
当所述时间索引为第四时间索引时,所述获取单元获取时间索引的方法至少包括以下几种优选方式:
方式一:
所述下行信号还包括发现信号;
所述同步信号与所述发现信号之间的发送时间间隔为第二时间间隔;
所述发送参数为所述第二时间间隔;所述时间索引为第四时间索引;
所述第二时间间隔与所述第四时间索引的对应关系是通过预定义或高层信令配置的;
方式二:
所述发送参数为所述同步信号的同步信号索引和所述发现信号的发现信号索引;所述时间索引为第四时间索引;
所述同步信号索引和所述发信信号索引的组合与所述第二时间索引的
对应关系是通过预定义或高层信令配置的;
方式三:
所述发送参数包括所述同步信号索引、发现信号索引及所述第二时间间隔;
所述时间索引为第四时间索引;
所述同步信号索引、发现信号索引及所述第二时间间隔的组合与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
其中,所述时间索引可包括以下索引至少之一:为传输符号索引、微帧索引、子帧索引及时域单元索引。
综合上述,本实施例所述的终端为实施例一所述的同步信号发送时间确定方法提供了支撑硬件,可以用来实现实施例一中任意技术方案所述的同步信号发送时间确定方法,此外终端在确定了各同步信号发送时间以后,将根据同步信号本身及同步信号发送时间校正与基站的同步,具有实现简便且同步精度高等优点。
实施例七:
本实施例提供一种基站,所述基站包括:
第一发送单元,配置为发送同步信号及第一时间索引;
所述第一时间索引配置为终端确定所述同步信号的发送时间。
所述第一发送单元的具体结构可包括发送接口,具体如发送天线或发送天线阵列等。在具体的实现过程中所述基站还可包括与所述第一发生单元连接的同步单元,用于形成所述第一时间索引及所述同步信号。所述同步单元的结构可包括处理器以及存储介质;所述存储介质上可存储有计算机可执行指令;所述处理器通过运行所述计算机可执行指令形成所述同步信号及同步信号的时间索引。
所述第一时间索引为传输符号索引、微帧索引、子帧索引及时域单元
索引的至少其中之一。
所述第一发送单元,配置为通过系统消息、专用信令或高层信令发送所述第一时间索引。
所述第一发送单元,配置为根据预定义的或者高层信令配置的系统消息的加扰比特序列系统消息的加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送。
综合上述,本实施例为实施例二所述的同步信号发送时间确定方法提供了让具体的硬件支撑,可用于实现方法实施例一中任一所述的技术方案,同样的具有提高了终端与基站之间同步精度及简化了同步的优点。
实施例八:
如图7所示,本实施例提供一种基站,所述基站包括:
第二确定单元210,配置为依据不同同步信号与时间索引的对应关系,确定发送参数;
第二发送单元220,配置为依据所述发送参数,发送包括所述同步信号的下行信号;
其中,所述发送参数用于表征所述时间索引;
所述时间索引为用于终端确定所述同步信号发送时间的时间索引。
在本实施例中,所述第二确定单元210的具体结构可包括处理器及存储器;所述存储器存储有不同同步信号与第二时间索引的对应关系;所述处理器与所述存储器相连,在确定所述发送参数时,依据当前需要发送的同步信号等参数读取所述存储器形成所述发送参数。
所述第二发送单元220具体的结构可为发送天线或发送天线阵列,具体如Massive天线阵列等,配置为依据所述发送参数发送同步信号及第二时间索引。
所述发送参数可以为两个信号的发送时间间隔等参数,可根据发送信号的时间的不同而不同,具体包括以下几种:
方式一:
所述时间索引为第二时间索引,一个所述同步信号包括主同步信号和辅同步信号;
所述主同步信号与所述辅同步信号的发送时间间隔为第一时间间隔;
所述发送参数为所述第一时间间隔;所述时间索引为第二时间索引;
所述第一时间间隔表征为第二时间索引;
其中,所述第一时间间隔与第二时间索引的对应关系是通过预定义或高层信令配置的。
方式二:
N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;
所述发送参数为所述同步序列;所述时间索引为第二时间索引;
其中,所述的同步序列与所述第二时间索引的对应关系是通过预定义或高层信令配置的。
方式三:
所述下行信号还包括发现信号;所述发送参数为所述发现信号承载的波束索引;所述时间索引为第三时间索引;
所述波束索引与所述第三时间间隔的对应关系是通过预定义或高层信令配置的。
方式四:
所述下行信号还包括发现信号;
所述发送参数为所述发现信号的发现序列;所述时间索引为第三时间索引;
所述发现序列与所述第三时间索引的对应关系是是通过预定义或高层信令配置的。
方式五:
所述下行信号还包括发现信号;
所述同步信号与所述发现信号之间的发送时间间隔为第二时间间隔;
所述发送参数为所述第二时间间隔;所述时间索引为第四时间索引;
所述第二时间间隔与所述第四时间索引的对应关系是通过预定义或高层信令配置的;
方式六:
所述发送参数为所述同步信号的同步信号索引和所述发现信号的发现信号索引;所述时间索引为第四时间索引;
所述同步信号索引和所述发信信号索引的组合与所述第时间索引的对应关系是通过预定义或高层信令配置的;
方式七:
所述发送参数包括所述同步信号索引、发现信号索引及所述第二时间间隔;
所述时间索引为第四时间索引;
所述同步信号索引、发现信号索引及所述第二时间间隔的组合与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
方式八:
所述第二发送单元,还配置为通过系统消息、专用信令或高层信令发送所述时间索引中的第一时间索引;
所述第一时间索引与所述时间索引中的其他时间索引共同用于终端确定所述同步信号发送时间的时间索引;具体的如所述第一时间索引与方式一至方式七中任一方案中所述时间索引共同构成用于指示同步信号发送时间的索引。
本实施例所述的终端为实施例三中所述的同步信号发送时间确定方法提供了硬件支撑,可以用来实现实施例三中任意所述的同步写好发送时间确定方中的技术方案,同样的具有同步精确及实现简单的优点。
实施例九:
如图8所示,本实施例提供一种通信系统,所述系统包括:
基站310,配置为发送同步信号及第一时间索引;所述第一时间索引配置为指示所述同步信号的发送时间;
终端320,配置为接收所述同步信号、所述第一时间索引及依据所述第一时间索引确定所述同步信号的发送时间。
本实施例所述的通信系统,基站与终端之间不仅传输同步信号还传输每一同步信号发送的时间索引,从而终端可以根据同步信号及时间索引精确的获取同步信号的发送时间,进而实现精确的同步,尤其适用于同步周
期内,基站将发送多个同步信号的应用场景。所述基站310和终端320之间通过移动通通信网络连接,采用第二代通信、第三代通信、第四通信或者第五代通信进行信息交互。所述基站310根据终端320与其之移动通信网络的不同可不同,如当所述基站310和其之间采用第三代通信或第三代以上的通信网络连接时,所述基站可为eNB;所述终端可以为智能手机或平板电脑等移动通信终端。
本实施例所述的通信系统为实施例四所述的同步信号发送时间确定方法提供了硬件支撑,可以用来实现实施例所述的方法的任意技术方案,同样的具有同步精度高及实现简便的优点。
具体的所述第一时间索引的构成以及指示方式、传输过程中的承载方式都可参见实施例一中的相应部分,在此就不做详细的展开了。具体的实现过程中,所述基站还可能根据与终端预先约定好的方式发送同步信号,在发送同步信号之前确定发送参数,依据发送参数向终端发送包括同步信号的下行,终端依据第一时间索引以及下行信号的发送参数形成确定同步信号发送时间的第三时间索引,根据第三时间索引确定同步信号发送时间。具体的实现方式可以参照实施例一和实施例三中对应部分,在此就不详细展开论述了。
本发明实施例所述的通信系统为实施例四中所述方法提供了硬件支撑,可以用来实现任意实施例四中任意方法所述的技术方案,同样的具有同步简便且精确度高的优点。
实施例十:
本实施例也提供一种通信系统,所述系统包括:
基站,配置为依据不同同步信号与时间索引的对应关系,确定发送参数;依据所述发送参数,发送包括所述同步信号的下行信号;其中,所述发送参数配置为表征所述时间索引;所述时间索引为用于终端确定所述同
步信号发送时间的时间索引;
终端,配置为接收所述包括同步信号的下行信号;获取所述下行信号的发送参数;所述发送参数为时间索引;及依据所述时间索引,确定所述同步信号的发送时间。
本实施例所述的通信系统,基站与终端之间不仅传输同步信号;且所述同步信号是依据预先约定的方式形成并传输的;故基站在发送所述包括所述同步信号的下行信号时,首先要依据与终端预先约定的内容形成发送参数;终端可以根据同步信号及依据发送参数形成的第二时间索引精确的获取同步信号的发送时间,进而实现精确的同步,尤其适用于同步周期内,基站将发送多个同步信号的应用场景。所述基站和终端之间通过移动通通信网络连接,采用第二代通信、第三代通信、第四通信或者第五代通信进行信息交互。所述基站根据终端与其之移动通信网络的不同可不同,如当所述基站和其之间采用第三代通信或第三代以上的通信网络连接时,所述基站可为eNB;所述终端可以为智能手机或平板电脑等移动通信终端。
本发明实施例所述的通信系统为实施例五中所述方法提供了硬件支撑,可以用来实现任意实施例五中任意方法所述的技术方案,同样的具有同步简便且精确度高的优点。
本发明实施例还记载了一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令配置为执行本发明实施例中所述方法的至少其中之一;具体如图1、图2、图4及图5中的一个或多个所示的方法。
所述计算机存储介质可为:移动存储设备、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质;优选为非瞬间存储介质。
以下结合上述任一实施例提供几个具体示例:
示例1:
如图9所示,假设基站利用N个下行波束发送以下信号和/或信息至少之一:下行同步信号、下行发现信号及下行系统信息。
在图9中,101所指示的时间块内,基站发送波束0;102所指示的时间块内,基站发送波束1;103所指示的时间块内,基站发送波束2;104所指示的时间块内,基站发送波束3;105所指示的时间块内,基站发送波束4;106所指示的时间块内,基站发送波束5;其中所述Nms时间间隔可认为是一个同步周期。
上述时间块可为一个子帧、微帧或传输单元或自定义的时领单元。结合图9,当基站发送同步信号时,基站通过同步信号指示对应时域单元的发送波束,同时指示下行同步信号。基站预定义多个同步信号采用多个序列在相同的时域单元X上进行传输。
终端在多个时域单元位置利用多个同步信号序列检测所述多个同步信号,当终端在对应的时域单元X上检测到同步信号满足一定门限要求时,并且对应的同步信号序列索引为Y,这时终端可以根据索引Y获得波束索引,根据时域单元可以获得定时同步。例如,时域单元X预定义为5ms时间间隔的第0个微帧上,这时终端可以获得对应的所有定时关系。
示例2:
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号及下行系统信息。如图9所示。当基站在所述载波发送同步信号时,基站通过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过系统消息的CRC加码比特通知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作,所述系统消息和同步信号存在对应关系,而且具有预定义的时域和/或频域位置差。
同步信号 | 时域单元 |
0 | 时域单元索引0 |
1 | 时域单元索引1 |
… | … |
X | 时域单元索引X |
表1
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,并且按照预定义的时域和/或频域位置差检测系统消息,利用对系统消息的CRC加扰比特序列进行检测,获得所述同步信号以及系统消息所在的时域单元索引。其中,系统消息的CRC加扰比特序列和时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波系统消息的CRC加扰比特序列和时域单元索引的对应关系,所述对应关系如表2所述。
系统消息的CRC加扰比特序列 | 时域单元 |
系统消息的CRC加扰比特序列0 | 时域单元索引0 |
系统消息的CRC加扰比特序列1 | 时域单元索引1 |
… | … |
系统消息的CRC加扰比特序列X | 时域单元索引X |
表2
示例3:
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号及下行系统信息。如图9所示。当基站在所述载波发送同步信号时,基站通过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过系统消息中时域索引指示比特或者序列通
知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作,所述系统消息和同步信号存在对应关系,而且具有预定义的时域和/或频域位置差。
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,并且按照预定义的时域和/或频域位置差检测系统消息,利用对系统消息中时域索引指示比特或者序列进行检测,获得所述同步信号以及系统消息所在的时域单元索引。其中,系统消息中时域索引指示比特或者比特序列和时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波系统消息中时域索引指示比特或者比特序列和时域单元索引的对应关系,所述对应关系如表3所述。
系统消息中时域索引指示比特或者比特序列 | 时域单元 |
系统消息中时域索引指示比特或者比特序列0 | 时域单元索引0 |
系统消息中时域索引指示比特或者比特序列1 | 时域单元索引1 |
… | … |
系统消息中时域索引指示比特或者比特序列X | 时域单元索引X |
表3
示例4:
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号、下行系统信息,可以基本覆盖基站需要覆盖的区域。如图9所示。当基站在所述载波发送同步信号时,基站通过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过系统消息中时域索引指示比特/序列以及系统消息的CRC加扰比特序列组合通知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作,所述系统消息和同步信号存在对应关系,而且具有预定义的时域和/或频域位
置差。
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,并且按照预定义的时域和/或频域位置差检测系统消息,利用对系统消息中时域索引指示比特/序列以及系统消息的CRC加扰比特序列组合进行检测,获得所述同步信号以及系统消息所在的时域单元索引。其中,系统消息中时域索引指示比特/序列以及系统消息的CRC加扰比特序列组合和时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波系统消息中时域索引指示比特/序列以及系统消息的CRC加扰比特序列组合和时域单元索引的对应关系,所述对应关系如表4所述。
表4
示例5:
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号、下行系统信息,可以基本覆盖基站需要覆盖的区域。如图9所示。当基站在所述载波发送同步信号时,基站通
过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过同步信号序列通知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作。
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,并且按照预定义的同步信号序列和时域单元索引的对应关系,通过所述同步信号序列和时域单元索引对应关系获得对应检测时刻的时域单元。其中,同步信号序列和时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波同步信号序列和时域单元索引的对应关系,所述对应关系如表5所述。
同步信号序列 | 时域单元 |
同步信号序列0 | 时域单元索引0 |
同步信号序列1 | 时域单元索引1 |
… | … |
同步信号序列X | 时域单元索引X |
表5
示例6:
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号、下行系统信息,可以基本覆盖基站需要覆盖的区域。如图9所示。当基站在所述载波发送同步信号时,基站通过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过主同步和辅同步信号的时间间隔通知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作。
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,
并且按照预定义的主同步和辅同步信号的时域间隔和时域单元索引的对应关系,通过所述主同步和辅同步信号的时域间隔和时域单元索引对应关系获得对应检测时刻的时域单元。其中,主同步和辅同步信号的时域间隔和时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波主同步和辅同步信号的时域间隔和时域单元索引的对应关系,所述对应关系如表6所述。
主同步和辅同步信号的时间间隔类型 | 时域单元 |
主同步和辅同步信号的时间间隔类型0 | 时域单元索引0 |
主同步和辅同步信号的时间间隔类型1 | 时域单元索引1 |
… | … |
主同步和辅同步信号的时间间隔类型X | 时域单元索引X |
表6
示例7:
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号、下行系统信息,可以基本覆盖基站需要覆盖的区域。如图9所示。当基站在所述载波发送同步信号时,基站通过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过下行同步和发现信号的时间间隔通知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作。
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,并且按照预定义的下行同步和发现信号的时间间隔与时域单元索引的对应关系,通过所述下行同步和发现信号的时间间隔与时域单元索引对应关系获得对应检测时刻的时域单元。其中,下行同步和发现信号的时间间隔与
时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波下行同步和发现信号的时间间隔与时域单元索引的对应关系,所述对应关系如表7所述。
下行同步和发现信号的时间间隔类型 | 时域单元 |
下行同步和发现信号的时间间隔类型0 | 时域单元索引0 |
下行同步和发现信号的时间间隔类型1 | 时域单元索引1 |
… | … |
下行同步和发现信号的时间间隔类型X | 时域单元索引X |
表7
示例8
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号、下行系统信息,可以基本覆盖基站需要覆盖的区域。如图9所示。当基站在所述载波发送同步信号时,基站通过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过同步信号序列以及下行同步和发现信号的时间间隔的组合通知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作。
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,并且按照预定义的同步信号序列以及下行同步和发现信号的时间间隔的组合与时域单元索引的对应关系,通过所述同步信号序列以及下行同步和发现信号的时间间隔的组合与时域单元索引对应关系获得对应检测时刻的时域单元。其中,同步信号序列以及下行同步和发现信号的时间间隔的组合与时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波同步信号序列以及下行同步和发现信号的时间间隔的组合与时域单元索引的对应关系,所述对应关系如表8所述。
表8
示例9
假设基站在所述载波上利用N个下行波束发送以下信号和信息至少之一:下行同步信号、下行发现信号、下行系统信息,可以基本覆盖基站需要覆盖的区域。如图9所示。当基站在所述载波发送同步信号时,基站通过同步信号指示同步信息。基站在所述载波预定义多个同步信号采用时分的方式在多个时域单元上进行传输,例如:表1。基站在所述载波通过同步信号序列以及主同步和辅同步信号时间间隔的组合通知终端对应检测到同步信号的时域单元,从而指示终端进行同步操作。
终端在所述载波通过检测同步信号,获得满足门限需求的同步信号,并且按照预定义的同步信号序列以及主同步和辅同步信号时间间隔的组合与时域单元索引的对应关系,通过所述同步信号序列以及主同步和辅同步信号时间间隔的组合与时域单元索引对应关系获得对应检测时刻的时域单元。其中,同步信号序列以及主同步和辅同步信号时间间隔的组合与时域单元索引的对应关系是预定义的,或者通过另外一个基站或者载波的高层信令配置所述载波同步信号序列以及主同步和辅同步信号时间间隔的组合
与时域单元索引的对应关系,所述对应关系如表8所述。
表9
以上所述,仅为本发明的较佳实施例而已,并非配置为限定本发明的保护范围。凡按照本发明原理所作的修改,都应当理解为落入本发明的保护范围。
Claims (43)
- 一种同步信号发送时间确定方法,所述方法包括:接收同步信号;获取所述同步信号的时间索引;依据所述时间索引确定所述同步信号的发送时间。
- 根据权利要求1所述的方法,其中,所述时间索引为第一时间索引、第二时间索引、第三时间索引、第四时间索引、第五时间索引、第六时间索引或第七时间索引;所述获取所述同步信号的时间索引为:获取基站通过系统消息、专用信令或高层信令发送的所述第一时间索引;或依据基站发送的同步信号获取所述第二时间索引;或依据基站发送的发现信号获取所述第三时间索引;或依据基站发送的同步信号和发现信号获取所述第四时间索引;或依据所述第一时间索引及所述第二时间索引,获取第五时间索引;或依据所述第一时间索引及所述第三时间索引,获取第六时间索引;或依据所述第一时间索引及所述第四时间索引,获取第七时间索引。
- 根据权利要求2所述的方法,其中,所述获取基站通过系统消息发送的所述第一时间索引为:根据预定义的或者高层信令配置的系统消息的加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定所述第一时间索引。
- 根据权利要求2所述的方法,其中,一个所述同步信号包括主同步信号和辅同步信号;所述接收同步信号为:分别接收所述主同步信号及所述辅同步信号;所述依据基站发送的同步信号获取第二时间索引包括:依据接收所述主同步信号与所述辅同步信号的时间间隔,确定所述主同步信号和辅同步信号的发送时间间隔;所述发送时间间隔为第一时间间隔;根据预定义的或者高层信令配置的所述第一时间间隔与所述第二时间索引的对应关系,确定第二时间索引。
- 根据权利要求2所述的方法,其中,N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;所述依据基站发送的同步信号获取第二时间索引包括:提取所述同步信号所对应的同步序列;根据预定义的或者高层信令配置的同步序列与所述第二时间索引的对应关系,确定第二时间索引。
- 根据权利要求2所述的方法,其中,所述依据基站发送的发现信号获取所述第三时间索引包括:接收发现信号;提取所述发现信号所对应的发现序列;根据预定义的或者高层信令配置的发现序列与所述第三时间索引的对应关系,确定所述第三时间索引;其中,N2个所述发现信号采用S2个不同的发现序列,且N2≥S2>0。
- 根据权利要求2所述的方法,其中,所述依据基站发送的发现信号获取所述第三时间索引包括:接收发现信号;所述发现信号承载有波束索引;根据预定义的或者高层信令配置的波束索引与所述第三时间索引的对应关系,确定所述第三时间索引。
- 根据权利要求2所述的方法,其中,所述方法还包括接收发现信号;所述依据基站发送的同步信号和发现信号获取第四时间索引包括:依据接收所述同步信号和所述发现信号的时间间隔,确定所述同步信号与所述发送信号的发送时间间隔;所述发送时间间隔为第二时间间隔;根据预定义的或者高层信令配置的同步信号和所述发现信号的第二时间间隔与所述第二时间索引的对应关系,确定第四时间索引;或依据所述同步信号确定同步信号索引;依据所述发现信号确定发现信号索引;依据预定义的或者高层信令配置的所述同步序号索引和所述发现信号索引的组合与第四时间索引的对应关系,确定第四时间索引;或者,依据所述同步信号确定同步信号索引;依据所述发现信号确定发现信号索引;确定所述同步信号与所述发现信号的发送时间间隔;所述时间间隔为第二时间间隔;根据预定义的或者高层信令配置的同步信号序列索引、所述发现信号索引与第二时间间隔的组合与所述第二时间索引的对应关系,确定第四时间索引。
- 根据权利要求2至8中任一项所述的方法,其中,所述时间索引包括以下索引至少之一:为传输符号索引、微帧索引、子帧索引及时域单元索引。
- 一种同步信号发送时间确定方法,所述方法包括:发送同步信号;发送所述同步信号的第一时间索引;所述第一时间索引配置为确定所述同步信号的发送时间。
- 根据权利要求10所述的方法,其中,所述发送所述同步信号的第一时间索引为:通过系统消息、专用信息或高层信令发送所述第一时间索引。
- 根据权利要求12所述的方法,其中,所述通过系统消息发送所述第一时间索引为:根据预定义的或者高层信令配置的系统消息的加扰比特序列系统消息的加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列的组合所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特的组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送。
- 一种同步信号发送时间确定方法,所述方法包括:依据不同同步信号与时间索引的对应关系确定发送参数;依据所述发送参数,发送包括所述同步信号的下行信号;其中,所述发送参数配置为表征所述时间索引;所述时间索引为配置为终端确定所述同步信号发送时间的时间索引。
- 根据权利要求13所述的方法,其中,所述时间索引为第二时间索引;一个所述同步信号包括主同步信号和辅同步信号;所述主同步信号与所述辅同步信号的发送时间间隔为第一时间间隔;所述发送参数为所述第一时间间隔;所述时间索引为第二时间索引;所述第一时间间隔表征为第二时间索引;其中,所述第一时间间隔与第二时间索引的对应关系是通过预定义或高层信令配置的。
- 根据权利要求13所述的方法,其中,N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;所述发送参数为所述同步序列;所述时间索引为第二时间索引;其中,所述的同步序列与所述第二时间索引的对应关系是通过预定义或高层信令配置的。
- 根据权利要求13所述的方法,其中,所述下行信号还包括发现信号;所述发送参数为所述发现信号承载的波束索引;所述时间索引为第三时间索引;所述波束索引与所述第三时间间隔的对应关系是通过预定义或高层信令配置的。
- 根据权利要求13所述的方法,其中,所述下行信号还包括发现信号;所述发送参数为所述发现信号的发现序列;所述时间索引为第三时间索引;所述发现序列与所述第三时间索引的对应关系是是通过预定义或高层信令配置的。
- 根据权利要求13所述的方法,其中,所述下行信号还包括发现信号;所述同步信号与所述发现信号之间的发送时间间隔为第二时间间隔;所述发送参数为所述第二时间间隔;所述时间索引为第四时间索引;所述第二时间间隔与所述第四时间索引的对应关系是通过预定义或高层信令配置的;或所述发送参数为所述同步信号的同步信号索引和所述发现信号的发现信号索引;所述时间索引为第四时间索引;所述同步信号索引和所述发信信号索引的组合与所述第时间索引的对 应关系是通过预定义或高层信令配置的;或所述发送参数包括所述同步信号索引、发现信号索引及所述第二时间间隔;所述时间索引为第四时间索引;所述同步信号索引、发现信号索引及所述第二时间间隔的组合与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
- 根据权利要求13至18任一项所述的方法,其中,所述方法还包括通过系统消息、专用信令或高层信令发送所述时间索引中的第一时间索引;所述第一时间索引与所述时间索引中的其他时间索引共同配置为终端确定所述同步信号发送时间的时间索引。
- 一种同步信号发送时间确定方法,所述同步信号发送时间确定方法包括:基站发送同步信号;终端接收所述同步信号;基站发送第一时间索引;所述第一时间索引配置为指示所述同步信号的发送时间;终端接收所述第一时间索引;终端依据所述第一时间索引确定所述同步信号的发送时间。
- 一种同步信号发送时间确定方法,所述同步信号发送时间确定方法包括:基站依据不同同步信号与时间索引的对应关系,确定发送参数;基站依据所述发送参数,发送包括所述同步信号的下行信号;其中,所述发送参数配置为表征所述时间索引;所述时间索引为配置为终端确定所述同步信号发送时间的时间索引;终端接收所述包括同步信号的下行信号;终端获取所述下行信号的发送参数及依据所述发送参数确定时间索引;终端依据所述时间索引确定所述同步信号的发送时间。
- 一种终端,所述终端包括:接收单元,配置为配置为接收同步信号;获取单元,配置为配置为获取所述同步信号的时间索引;第一确定单元,配置为配置为依据所述时间索引确定所述同步信号的发送时间。
- 根据权利要求22所述的终端,其中,所述时间索引为第一时间索引、第二时间索引、第三时间索引、第四时间索引、第五时间索引、第六时间索引或第七时间索引;所述获取单元,配置为配置为获取基站通过系统消息、专用信令或高层信令发送的所述第一时间索引;或依据基站发送的同步信号获取所述第二时间索引;或依据基站发送的发现信号获取所述第三时间索引;或依据基站发送的同步信号和发现信号获取所述第四时间索引;或依据所述第一时间索引及所述第二时间索引,获取第五时间索引;或依据所述第一时间索引及所述第三时间索引,获取第六时间索引;或依据所述第一时间索引及所述第四时间索引,获取第七时间索引。
- 根据权利要求23所述的终端,其中,所述获取单元,配置为配置为根据预定义的或者高层信令配置的系统消息的加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特组合与所述第一时间索引的对应关系,确定所述第一时间索引;或根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定所述第一时间索引。
- 根据权利要求23所述的终端,其中,一个所述同步信号包括主同步信号和辅同步信号;所述接收单元,配置为配置为分别接收所述主同步信号及所述辅同步信号;所述获取单元,配置为配置为依据接收所述主同步信号与所述辅同步信号的时间间隔,确定所述主同步信号和辅同步信号的发送时间间隔;所述发送时间间隔为第一时间间隔;及根据预定义的或者高层信令配置的所述第一时间间隔与所述第二时间索引的对应关系,确定第二时间索引。
- 根据权利要求23所述的终端,其中,N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;所述获取单元,配置为配置为提取所述同步信号所对应的同步序列;及根据预定义的或者高层信令配置的同步序列与所述第二时间索引的对应关系,确定第二时间索引。
- 根据权利要求23所述的终端,其中,所述获取单元,配置为配置为接收发现信号;提取所述发现信号所对应的发现序列;及根据预定义的或者高层信令配置的发现序列与所述第三时间索引的对应关系,确定所述第三时间索引;其中,N2个所述发现信号采用S2个不同的发现序列,且N2≥S2>0。
- 根据权利要求23所述的终端,其中,所述获取单元,配置为接收发现信号;及根据预定义的或者高层信令配置的波束索引与所述第三时间索引的对应关系,确定所述第三时间索引;其中,所述发现信号承载有波束索引。
- 根据权利要求23所述的终端,其中,所述获取单元,配置为配置为接收发现信号;依据接收所述同步信号和所述发现信号的时间间隔,确定所述同步信号与所述发送信号的发送时间间隔;所述发送时间间隔为第二时间间隔;及根据预定义的或者高层信令配置的同步信号和所述发现信号的第二时间间隔与所述第四时间索引的对应关系,确定第四时间索引;或依据所述同步信号确定同步信号索引;依据所述发现信号确定发现信号索引;及依据预定义的或者高层信令配置的所述同步序号索引和所述发现信号索引的组合与第四时间索引的对应关系,确定第四时间索引;或依据所述同步信号确定同步信号索引;依据所述发现信号确定发现信号索引;及确定所述同步信号与所述发现信号的发送时间间隔;所述时间间隔为第二时间间隔;根据预定义的或者高层信令配置的同步信号序列索引、所述发现信号索引与第二时间间隔的组合与所述第二时间索引的对应关系,确定第四时间索引。
- 根据权利要求23至29中任一项所述的终端,其中,所述时间索引包括以下索引至少之一:为传输符号索引、微帧索引、子帧索引及时域单元索引。
- 一种基站,所述基站包括:第一发送单元,配置为配置为发送同步信号及第一时间索引;所述第一时间索引配置为终端确定所述同步信号的发送时间。
- 根据权利要求31所述的基站,其中,所述第一发送单元,配置为配置为通过系统消息、专用信息或高层信令发送所述第一时间索引。
- 根据权利要求32所述的基站,其中,所述第一发送单元,配置为配置为根据预定义的或者高层信令配置的系统消息的加扰比特序列系统消息的加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息的加扰比特序列组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的加扰比特序列和系统消息比特组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息的CRC加扰比特序列、系统消息的加扰比特序列以及系统消息比特组合与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送;或根据预定义的或者高层信令配置的系统消息比特与所述第一时间索引的对应关系,确定并将所述第一时间索引承载在系统消息中发送。
- 一种基站,所述基站包括:第二确定单元,配置为配置为依据不同同步信号与时间索引的对应关系,确定发送参数;第二发送单元,配置为配置为依据所述发送参数,发送包括所述同步信号的下行信号;其中,所述发送参数配置为表征所述时间索引;所述时间索引为配置为终端确定所述同步信号发送时间的时间索引。
- 根据权利要求34所述的基站,其中,所述时间索引为第二时间索引;一个所述同步信号包括主同步信号和辅同步信号;所述主同步信号与所述辅同步信号的发送时间间隔为第一时间间隔;所述发送参数为所述第一时间间隔;所述时间索引为第二时间索引;所述第一时间间隔表征为第二时间索引;其中,所述第一时间间隔与第二时间索引的对应关系是通过预定义或高层信令配置的。
- 根据权利要求34所述的基站,其中,N1个所述同步信号采用S1个不同的同步序列,其中N1≥S1>0;所述发送参数为所述同步序列;所述时间索引为第二时间索引;其中,所述的同步序列与所述第二时间索引的对应关系是通过预定义或高层信令配置的。
- 根据权利要求34所述的基站,其中,所述下行信号还包括发现信号;所述发送参数为所述发现信号承载的波束索引;所述时间索引为第三时间索引;所述波束索引与所述第三时间间隔的对应关系是通过预定义或高层信令配置的。
- 根据权利要求34所述的基站,其中,所述下行信号还包括发现信号;所述发送参数为所述发现信号的发现序列;所述时间索引为第三时间索引;所述发现序列与所述第三时间索引的对应关系是是通过预定义或高层信令配置的。
- 根据权利要求34所述的基站,其中,所述下行信号还包括发现信号;所述同步信号与所述发现信号之间的发送时间间隔为第二时间间隔;所述发送参数为所述第二时间间隔;所述时间索引为第四时间索引;所述第二时间间隔与所述第四时间索引的对应关系是通过预定义或高层信令配置的;或所述发送参数为所述同步信号的同步信号索引和所述发现信号的发现信号索引;所述时间索引为第四时间索引;所述同步信号索引和所述发信信号索引的组合与所述第时间索引的对应关系是通过预定义或高层信令配置的;或所述发送参数包括所述同步信号索引、发现信号索引及所述第二时间间隔;所述时间索引为第四时间索引;所述同步信号索引、发现信号索引及所述第二时间间隔的组合与所述第四时间索引的对应关系是通过预定义或高层信令配置的。
- 根据权利要求34至39任一项所述的基站,其中,所述第二发送单元,还配置为配置为通过系统消息、专用信令或高层信令发送所述时间索引中的第一时间索引;所述第一时间索引与所述时间索引中的其他时间索引共同配置为终端确定所述同步信号发送时间的时间索引。
- 一种通信系统,,所述系统包括:基站,配置为配置为发送同步信号及第一时间索引;所述第一时间索引配置为配置为指示所述同步信号的发送时间;终端,配置为配置为接收所述同步信号、所述第一时间索引及依据所述第一时间索引确定所述同步信号的发送时间。
- 一种通信系统,所述系统包括:基站,配置为配置为依据不同同步信号与时间索引的对应关系,确定发送参数;依据所述发送参数,发送包括所述同步信号的下行信号;其中,所述发送参数配置为配置为表征所述时间索引;所述时间索引为配置为终端确定所述同步信号发送时间的时间索引;终端,配置为配置为接收所述包括同步信号的下行信号;获取所述下行信号的发送参数,依据所述发送参数确定时间索引;及依据所述时间索引,确定所述同步信号的发送时间。
- 一种计算机存储介质,所述计算机存储介质中存储有计算机可执行指令,所述计算机可执行指令配置为执行权利要求1至21所述方法的至少其中之一。
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