WO2019157912A1 - 一种信道资源分配方法及计算机可读存储介质和终端 - Google Patents

一种信道资源分配方法及计算机可读存储介质和终端 Download PDF

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Publication number
WO2019157912A1
WO2019157912A1 PCT/CN2019/072627 CN2019072627W WO2019157912A1 WO 2019157912 A1 WO2019157912 A1 WO 2019157912A1 CN 2019072627 W CN2019072627 W CN 2019072627W WO 2019157912 A1 WO2019157912 A1 WO 2019157912A1
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physical shared
shared channel
type
resource allocation
transmission
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PCT/CN2019/072627
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English (en)
French (fr)
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周欢
黄甦
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北京展讯高科通信技术有限公司
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Priority to US16/321,404 priority Critical patent/US11219045B2/en
Publication of WO2019157912A1 publication Critical patent/WO2019157912A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the embodiments of the present disclosure relate to the field of mobile communications, and in particular, to a channel resource allocation method and a computer readable storage medium and a terminal.
  • the 3GPP standards organization is studying how to deploy a new radio (NR) network on the unlicensed spectrum to achieve fair and efficient use of unlicensed spectrum and increase the data transmission rate of the NR system.
  • NR new radio
  • the latter two modes of granting the spectrum and the unlicensed spectrum can be used in a manner similar to carrier aggregation, that is, one terminal and an evolved base station (Evolved Node B). , gNB) may work on both the licensed spectrum and the unlicensed spectrum.
  • Evolved Node B evolved base station
  • PUSCH Physical Uplink Shared Channel
  • PDSCH Physical Downlink Shared Channel
  • the problem solved by the embodiment of the present disclosure is how to fill the transmission time as much as possible after the unlicensed cell successfully accesses, and avoid the remaining spectrum of the transmission time being occupied by other devices.
  • an embodiment of the present disclosure provides a channel resource allocation method, including: accessing an unlicensed spectrum cell and configuring at least one physical shared channel in the unlicensed spectrum cell; if RRC signaling configures at least one physical share If the number of timeslot aggregation of the channel is greater than 1, the DCI indicates the number of slots scheduled by the physical shared channel; the DCI further indicates at least one time domain resource allocation information; and the time domain resource allocation information includes: the physical a time slot in which the shared channel is located and a time slot in which the physical downlink control channel is transmitted, a start position of a symbol of the physical shared channel, a length information of a symbol of the physical shared channel, and a mapping type of the physical shared channel;
  • the mapping types of the physical shared channel include type A and type B.
  • a starting position of the symbol of the physical shared channel indicates a starting position of the first physical shared channel transmitted in the time slot; a length information of the symbol of the physical shared channel, including indicating the last physical shared channel The length of the transmission transmitted in the time slot.
  • the method further includes: configuring, according to the start position of the symbol of the physical shared channel and the length information of the symbol of the physical shared channel, symbols of other physical shared channels except the first and last physical shared channels The starting position of the slot transmission, the length of the symbols of the other physical shared channel occupying the entire time slot.
  • the indicating the at least one time domain resource allocation information further includes: configuring, by using the RRC, the transmission application type A of the first physical shared channel and the last physical shared channel in one time slot resource allocation information Or type B configuration, configuration of other physical shared channel transmission using type A configuration.
  • the indicating time domain resource allocation information further includes: configuring, by using an RRC, the first type A or type B of the transmission of the first physical shared channel in one slot resource allocation information, and configuring the The transmission of the last physical shared channel applies a second type A or type B, and the third type A or type B is applied to the transmission of other physical shared channels.
  • the indicating time domain resource allocation information further includes: configuring, by using an RRC, information of type A or information of type B in one slot resource allocation information, and configuring all transmission applications of the physical shared channel. The type specified.
  • the indicating time domain resource allocation information includes: indicating that the first physical shared channel transmission and the last physical shared channel transmission each occupy one time slot resource allocation information.
  • the first time slot resource allocation information includes a time slot deviation between sending the first physical shared channel and transmitting a physical downlink control channel, where the first physical shared channel transmits the start position and length of the symbol and a mapping type of the first physical shared channel transmission;
  • the last time slot resource allocation information includes a slot deviation of transmitting a last physical shared channel and transmitting a physical downlink control channel, where the last physical shared channel transmits a symbol The starting position and length and the type of mapping of the last physical shared channel transmission.
  • the physical shared channel includes a PUSCH or a PDSCH.
  • Also provided in an embodiment of the present disclosure is a computer readable storage medium having stored thereon computer instructions that, when executed, perform the steps of any one of the channel resource allocation methods of the above embodiments.
  • a terminal comprising a memory and a processor having stored thereon computer instructions executable on the processor, the processor executing the above-described implementation when the computer instructions are executed.
  • the channel resource allocation method provided by the present disclosure enables a non-authorized cell to be successfully accessed, a transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position to avoid idle time being used by other devices. Occupied, causing signals between different devices to interfere with each other.
  • a transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position.
  • the terminal provided by the present disclosure enables the unlicensed cell to successfully access, one transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position.
  • FIG. 1 is a schematic diagram of a frame structure of a 3GPP NR system
  • FIG. 2 is a schematic diagram of a configuration format of timing resource allocation information
  • FIG. 3 is a schematic structural diagram of a frame in an embodiment of the present disclosure.
  • FIG. 1 is a schematic diagram of a frame structure of a 3GPP NR system.
  • each radio frame is divided into 10 subframes of the same size and length of 1 ms; and in the frequency domain, each sub-frame in the time domain may be included because the subcarrier spacing is different.
  • Multiple time slots Each time slot consists of a certain number of symbols, and the number of symbols is determined by the type of cyclic prefix (CP).
  • CP cyclic prefix
  • Each time slot in FIG. 1 contains 14 symbols, wherein the symbol of the first symbol is 0, the symbol of the second symbol is 1, and the symbol of other symbols can be deduced by analogy.
  • NR can use unlicensed spectrum.
  • the first is to use the NR cell of the unlicensed spectrum as the primary cell.
  • the second type is an NR cell in which the UE accesses the unlicensed spectrum through the LTE cell.
  • the third type is an NR cell in which the UE accesses the unlicensed spectrum through the NR cell.
  • the licensed spectrum and the unlicensed spectrum used in the second mode and the third mode can be used in a similar manner to the carrier aggregator, that is, a terminal and a gNB can work simultaneously on the licensed spectrum and the unlicensed spectrum. .
  • the 3GPP can use the Listen-Before-Talk (LBT) process to implement the LTE Licensed Assisted Access (LTE LAA) system of different operators in the unlicensed spectrum to coexist with other systems.
  • LBT Listen-Before-Talk
  • LTE LAA LTE Licensed Assisted Access
  • the node checks whether the current channel is available through the Clear Channel Assessment (CCA) on the transmission data front. Therefore, any LBT process includes energy detection to determine if the channel is occupied.
  • An energy detection threshold is specified in some regional regulations, and the channel is considered busy if the energy received by the node is above the energy detection threshold.
  • the downlink input of LTE LAA supports two channel access procedures, namely Type 1 and Type 2; Type 1 is a Cat 4 based channel access procedure, and Type 2 is a fixed time length based channel access procedure (at least before transmission) 25 ⁇ s of LBT).
  • the LAA uplink transmission also supports the two channel access procedures, and the two channel access procedures are also referred to as Type 1 and Type 2.
  • the time domain resource allocation mode of the PUSCH/PDSCH in the NR is: Radio Resource Control (RRC) can configure 16 types of time domain resource allocation information through high layer signaling, and Downlink Control Information (DCI) uses 4 bit indication. Which time domain resource allocation information is used for current scheduling.
  • RRC Radio Resource Control
  • DCI Downlink Control Information
  • a channel resource allocation method including:
  • the DCI indicates the time of the physical shared channel scheduling The number of slots; the DCI further indicates at least one time domain resource allocation information; the time domain resource allocation information includes: a time slot in which the physical shared channel is located and a time slot deviation of the physical downlink control channel, and a start of a symbol of the physical shared channel The location, the length information of the symbol of the physical shared channel, and the mapping type of the physical shared channel; the mapping type of the physical shared channel includes type A and type B.
  • the physical shared channel may be a physical shared channel used in an unlicensed spectrum cell.
  • the length information of the symbol mentioned in the above description is used to describe the length of the symbol of the physical shared channel, and the length of the symbol is in units of the number of symbols, for example, if the number of symbols is 1, Then the length of the symbol is 1; if the number of symbols is 3, the length of the symbol is 3. It is not difficult to understand that the length of the symbol must be an integer. The meaning of the symbol lengths mentioned in the following embodiments is the same, and therefore will not be described again.
  • the timing resource allocation information mentioned herein includes three parts, the first part is the time slot deviation of the physical shared channel and the transmitted PDCCH, the second part indicates the start position and length information of the symbol, and the third part indicates the physical part.
  • the mapping type of the shared channel (type A or type B).
  • the RRC also needs to configure the slot aggregation information, which may be (1, 2, 4, 8), that is, the number of slot aggregations may be 1, 2, 4, or 8.
  • the number of timeslot aggregation information is greater than 1, the starting position and length of the physical shared channel of each slot are the same, that is, if a PDSCH starting position is the first symbol in slot 0, then The other PDSCH start position in slot 1 is also the first symbol in slot 1.
  • FIG. 2 is a schematic diagram of the configuration format of the timing resource allocation information.
  • the identifier in FIG. 2 refers to an identifier of different types of time series resource allocation information. As described above, 16 types of timing resource allocation information can be allocated, and the content of the timing resource allocation information can be selected according to actual needs. It is easy to understand that the identification of these timing resource allocation information is different.
  • the slot in Fig. 2 refers to the slot position in which the PDSCH/PUSCH is located.
  • the PDSCH or the PUSCH has different mapping types type A or type B.
  • the start symbol position of the type A of the PDSCH may be 0, 1, 2, or 3; the length of the symbol may be from X1 to 14, and the value of X1 may be selected as needed.
  • the start symbol position of the type B of the PDSCH may be any one of 0 to 12, and the length of the symbol may be 2, 4 or 7.
  • the start symbol position of the type A of the PUSCH may be 0, and the symbol length may be Y1 to 14, and the value of Y1 may be selected according to actual needs.
  • the position of the start symbol of the type B of the PUSCH may be any one of 0 to 13, and the length of the symbol may be any one of 1 to 14.
  • mapping position of the PDSCH or PUSCH mapping type type A or type B in the Demodulation Reference Signal (DMRS) is also different.
  • the channel resource allocation method enables a non-authorized cell to be successfully accessed, one transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position to avoid idle time being Other devices are occupied, causing signals between different devices to interfere with each other.
  • a starting position of a symbol of a physical shared channel indicates a starting position of transmission of a first physical shared channel within a time slot; a length information of a symbol of the physical shared channel, including indicating a last physical share The length of transmission of the channel in the time slot, and the length of the symbols of other physical shared channels occupying the entire time slot.
  • the length of the symbols of all physical shared channels may also occupy the entire time slot.
  • the symbols of the other physical shared channels except the first and last physical shared channels are configured at the beginning of the time slot transmission. position.
  • the starting position of the symbol of the first physical shared channel in the time slot can be known from the starting position of the symbol of the physical shared channel, and the length information of the symbol of the physical shared channel can be used to know that the last physical shared channel is in time.
  • the transmission length of the intra-slot transmission, so the symbols of other physical shared channels can be configured at the start position of the time slot transmission according to the start position of the symbol of the physical shared channel and the length information of the symbol of the physical shared channel.
  • the starting position of the symbol can be indicated as m, and the length of the symbol is L, where m and L are both positive numbers.
  • the starting position m of the symbol may be used to indicate that the starting position of the first physical shared channel transmitted in its time slot is the symbol m; if the number of time slot symbols in the time slot in which the first physical shared channel is located is N sym Then, the length of the symbol of the first physical shared channel is N sym -m.
  • the length L of the symbol is used to indicate that the starting position of the last physical shared channel transmitted in the time slot is the position where the symbol 0 is located, and the symbol length is L.
  • the starting position of other physical shared channels is the position where the symbol 0 is located in the time slot in which it is located, and the symbol length is N sym .
  • the length of the symbols of other physical shared channels occupies the entire time slot.
  • FIG. 3 is a schematic structural diagram of a frame in an embodiment of the present disclosure. If the starting position of the symbol is 7, and the length of the symbol is 7, the starting position of the first physical shared channel transmitted in its time slot is symbol 7. If the number of slot symbols in the slot in which the first physical shared channel is located is 14, the symbol length of the first physical shared channel is 14-7, that is, 7. The symbol length is 7, and the starting position of the transmission in the time slot of the last physical shared channel is the position of the symbol 0, and the ending position is the position of the symbol 6, that is, the ending position is the position of the symbol 6. The starting position of other physical shared channels is the location of symbol 0, and their symbol length is 14.
  • symbol 0 here is a symbol to the symbol identifier 0, that is, the first symbol, and does not refer to the 0th symbol. Those skilled in the art will readily understand the symbol locations indicated by the symbol identification.
  • indicating the at least one time domain resource allocation information further includes: configuring, by using the RRC, the configuration of the transmission application type A or type B of the first physical shared channel and the last physical shared channel in one slot resource allocation information.
  • the configuration of other physical shared channels is configured with type A.
  • the indicating the time domain resource allocation information further includes: configuring, by using the RRC, the first type A or type B of the transmission of the first physical shared channel in one slot resource allocation information, and configuring the last physical shared channel.
  • the transmission uses the second type A or type B to configure the transmission of other physical shared channels to apply a third type A or type B.
  • the indicating the time domain resource allocation information further includes: configuring, by using the RRC, information of a type A or a type B in one slot resource allocation information, and configuring a type specified by the transmission application of all the physical shared channels. .
  • Information should be allocated for using only one time domain resource, so system resources are saved and the processing speed of the system is increased.
  • the channel resource allocation method enables a non-authorized cell to be successfully accessed, one transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position to avoid idle time being Other devices are occupied, causing signals between different devices to interfere with each other.
  • indicating the time domain resource allocation information includes: indicating that the first physical shared channel transmission and the last physical shared channel transmission each occupy one time slot resource allocation information.
  • the first time slot resource allocation information includes a time slot deviation of transmitting the first physical shared channel transmission and transmitting the physical downlink control channel, a starting position and a length of the first physical shared channel transmission symbol, and the first The mapping type of the physical shared channel transmission;
  • the last slot resource allocation information includes the slot offset of transmitting the last physical shared channel and transmitting the physical downlink control channel, the starting position and length of the last physical shared channel transmission symbol, and the last one The type of mapping for physical shared channel transmission.
  • mapping type used by other physical shared channel transmissions is based on the RRC protocol, and the default is type A. Therefore, they do not need to indicate slot resource allocation information.
  • the channel resource allocation method enables a non-authorized cell to be successfully accessed, one transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position to avoid idle time being Other devices are occupied, causing signals between different devices to interfere with each other.
  • the physical shared channel includes a physical shared channel including a PUSCH or a PDSCH.
  • a computer readable storage medium having stored thereon computer instructions that, when executed, perform the steps of any one of the channel resource allocation methods of the above embodiments.
  • a transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position to avoid idleness. Time is occupied by other devices, causing signals between different devices to interfere with each other.
  • a terminal comprising a memory and a processor, the memory storing computer instructions executable on the processor, and executing any one of the above embodiments when the processor runs the computer instructions The steps of the channel resource allocation method.
  • the terminal given by the embodiment of the present disclosure enables the unlicensed cell to successfully access, one transmission time is occupied as much as possible, and has a flexible symbol start position and a flexible symbol end position to avoid the idle time being used by other devices. Occupied, causing signals between different devices to interfere with each other.
  • the program can be stored in a computer readable storage medium.
  • the storage medium can include: ROM, RAM, disk or CD.

Abstract

一种信道资源分配方法及计算机可读存储介质和终端，包括:接入非授权频谱小区并配置所述非授权频谱小区内的至少一个物理共享信道；如果RRC信令配置至少一个物理共享信道的时隙聚合个数大于1，则DCI指示本次物理共享信道调度的时隙个数；所述DCI还指示至少一个时域资源分配信息；所述时域资源分配信息包括：所述物理共享信道所在的时隙与发送物理下行控制信道的时隙偏差、所述物理共享信道的符号的起始位置、所述物理共享信道的符号的长度以及所述物理共享信道的映射类型；所述物理共享信道的映射类型包括type A和type B。

Description

一种信道资源分配方法及计算机可读存储介质和终端 技术领域
本公开实施例涉及移动通讯领域，尤其涉及一种信道资源分配方法及计算机可读存储介质和终端。
背景技术
3GPP标准组织正在研究在非授权频谱上如何部署新无线(New Radio，NR)网络，从而达到公平有效地利用非授权频谱，提高NR系统的数据传输速率的目的。NR对非授权频谱的使用有三种方式，一种是：非授权频谱的NR小区做主小区；另一种是，用户终端(User Equipment，UE)通过LTE小区接入非授权频谱的NR小区，最后一种为UE通过NR小区接入非授权频谱的NR小区，后两种方式授权频谱和非授权频谱是可以通过类似于载波聚合的方式结合使用的，即一个终端、演进型基站(Evolved Node B，gNB)可能同时工作在授权频谱和非授权频谱上。
但是，在非授权小区发送多个时隙聚合的物理上行共享信道(Physical Uplink Shared Channel，PUSCH)或物理下行共享信道(Physical Downlink Shared Channel，PDSCH)时，并非使用整个时隙传输，若仍采用PUSCH/PDSCH的起始符号和符号长度，不适合非授权小区传输。因为在非授权小区成功接入后，要尽可能占满这个发送时刻，否则该发送时刻的剩余频谱会被其它设备所占用。因此，需要一种新的PUSCH/PDSCH在非授权小区传输的时隙资源分配方式。
发明内容
本公开实施例解决的问题是非授权小区成功接入后，如何尽可能占满这个发送时刻，避免该发送时刻的剩余频谱会被其它设备所占用。
为解决上述问题，本公开实施例提供一种信道资源分配方法，包括:接入非授权频谱小区并配置所述非授权频谱小区内的至少一个物理共享信道；如果RRC信令配置至少一个物理共享信道的时隙聚合个数大于1，则DCI指示 本次物理共享信道调度的时隙个数；所述DCI还指示至少一个时域资源分配信息；所述时域资源分配信息包括：所述物理共享信道所在的时隙与发送物理下行控制信道的时隙偏差、所述物理共享信道的符号的起始位置、所述物理共享信道的符号的长度信息、以及所述物理共享信道的映射类型；所述物理共享信道的映射类型包括type A和type B。
可选地，所述物理共享信道的符号的起始位置指示第一个物理共享信道在时隙内传输的起始位置；所述物理共享信道的符号的长度信息，包括指示最后一个物理共享信道在时隙内传输的传输长度。
可选地，还包括：依据所述物理共享信道的符号的起始位置和所述物理共享信道的符号的长度信息配置除第一个及最后一个物理共享信道外，其它物理共享信道的符号在时隙传输的起始位置，所述其它物理共享信道的符号的长度占满整个时隙。
可选地，所述指示至少一个时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置所述第一个物理共享信道及所述最后一个物理共享信道的传输应用type A或type B的配置，配置其它物理共享信道的传输采用type A的配置。
可选地，所述指示时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置所述第一个物理共享信道的传输应用第一个type A或type B，配置所述最后一个物理共享信道的传输应用第二个type A或type B，配置其它物理共享信道的传输应用第三个type A或type B。
可选地，所述指示时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置一个type A的信息或一个type B的信息，配置所有的所述物理共享信道的传输应用指定的类型。
可选地，所述指示时域资源分配信息包括：指示第一个物理共享信道传输和最后一个物理共享信道传输各占一个时隙资源分配信息。
可选地，所述第一个时隙资源分配信息包括发送第一个物理共享信道与发送物理下行控制信道的时隙偏差，所述第一个物理共享信道传输符号的起始位置和长度以及所述第一个物理共享信道传输的映射类型；所述最后一个 时隙资源分配信息包括发送最后一个物理共享信道与发送物理下行控制信道的时隙偏差，所述最后一个物理共享信道传输符号的起始位置和长度以及所述最后一个物理共享信道传输的映射类型。
可选地，所述物理共享信道包括PUSCH或PDSCH。
本公开的实施例中还提供了一种计算机可读存储介质，其上存储有计算机指令，所述计算机指令运行时执行上述实施例中任意一种信道资源分配方法的步骤。
本公开的实施例中还提供了一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，所述处理器运行所述计算机指令时执行上述实施例中任意一种信道资源分配方法的步骤。
与现有技术相比，本公开实施例的技术方案具有以下优点：
本公开给出的信道资源分配方法，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置，避免空闲时刻被其它设备占用，导致不同设备间的信号相互干扰。
进一步，通过本公开所提供的计算机可读存储介质，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置。
进一步，通过本公开所提供的终端，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置。
附图说明
图1是3GPP NR系统的帧结构示意图；
图2是时序资源分配信息的配置格式示意图；
图3为本公开实施例中一种帧结构示意图。
具体实施方式
如图1所示，图1为3GPP NR系统的帧结构示意图。在时序内长度为10ms的无线帧内，每个无线帧被划分为10个同样大小的长度为1ms的子帧；而子在频域内，由于子载波间隔不同，所以时域内每个子帧可以包含多个时隙。每个时隙由一定数量的符号构成，并且符号个数由循环前缀(cyclic prefix，CP)的类型决定。
图1中每个时隙包含14个符号，其中第一个符号的符号标识为0，第二个符号的符号标识为1，其它符号的符号标识可以依此类推。
为了公平有效地利用非授权频谱，提高NR系统的数据传输速率，需要确定非授权频谱上的NR网路部署方案。
NR对非授权频谱的使用有三种方式。第一种为将非授权频谱的NR小区作为主小区。第二种为UE通过LTE小区接入非授权频谱的NR小区。第三种为UE通过NR小区接入非授权频谱的NR小区。第二种方式和第三种方式中所利用的授权频谱和非授权频谱是可以通过与载波聚合方类似的方式结合使用，即一个终端、gNB是可以同时工作在授权频谱和非授权频谱上的。
3GPP可以采用先听后说(Listen-Before-Talk，LBT)的过程实现非授权频谱中不同运营商的免授权频谱LTE辅助接入(LTE Licensed Assisted Access，LTE LAA)系统与其它系统共存。LBT过程即在非授权频谱中，节点在传输数据前线通过空闲信道评估(Clear Channel Assessment，CCA)判断当前信道是否可用。所以，任何LBT过程均包含能量检测(energy detection)，以此决定信道是否被占用。在一些地区法规中会规定一个能量检测门限(energy detection threshold)，若节点所接收的能量高于此能量检测门限则认为该信道忙。LTE LAA的下行输入支持两种信道接入过程，即Type 1和Type 2；其中Type 1是基于Cat 4的信道接入过程，Type 2是基于固定时间长度的信道接入过程(传输之前至少存在25μs的LBT)。同样的，LAA上行传输也支持这两种信道接入过程，也分别称这两种信道接入过程为Type 1和Type 2。
NR中PUSCH/PDSCH的时域资源分配方式为：无线资源控制(Radio Resource Control，RRC)可以通过高层信令配置16种时域资源分配信息，下行控制信息(Downlink Control Information，DCI)使用4bit指示当前调度采 用哪种时域资源分配信息。
但是，如前所述，在非授权小区发送多个时隙聚合的PUSCH/PDSCH时，并非使用整个时隙传输，若仍采用PUSCH/PDSCH的起始符号和符号长度，则不能占满这个发送时刻，导致该发送时刻的剩余频谱会被其它设备所占用，，不同设备间的信号相互干扰，影响通讯质量。
为使本公开实施例的上述目的、特征和优点能够更为明显易懂，下面结合附图对本公开实施例的具体实施例做详细的说明。
在本公开的一些实施例中，提供了一种信道资源分配方法，包括:
接入非授权频谱小区并配置非授权频谱小区内的至少一个物理共享信道；如果RRC信令配置至少一个物理共享信道的时隙聚合个数大于1，则DCI指示本次物理共享信道调度的时隙个数；DCI还指示至少一个时域资源分配信息；所述时域资源分配信息包括：物理共享信道所在的时隙与发送物理下行控制信道的时隙偏差、物理共享信道的符号的起始位置、物理共享信道的符号的长度信息、以及物理共享信道的映射类型；物理共享信道的映射类型包括type A和type B。
在具体实施中，该物理共享信道可以是在非授权频谱小区使用的物理共享信道。
需要说明的是，以上描述中所提到的符号的长度信息，用于说明物理共享信道的符号的长度，符号的长度是以符号的个数为单位，例如，如果符号的个数为1，则符号的长度为1；如果符号的个数为3，则符号的长度为3。不难理解，符号的长度值一定是一个整数。之后的实施例中所提到的符号长度的意义与此相同，因此不再赘述。
需要说明的是，这里所提到的时序资源分配信息包括三部分内容，第一部分是物理共享信道与发送PDCCH的时隙偏差，第二部分指示符号起始位置和长度信息，第三部分指示物理共享信道的映射类型(type A或type B)。RRC还要配置时隙聚合信息，可以为(1，2，4，8)，即时隙聚合个数可以为1个、2个、4个或8个。当时隙聚合信息的个数大于1时，每个时隙的物理共享信道的起始位置和长度都是相同的，即，如果一个PDSCH起始位置为时隙0中 的第一个符号，则时隙1中另一个PDSCH起始位置也为时隙1中的第一个符号。
DCI指示时序资源分配信息时，时序资源分配信息的配置格式如图2所示，图2为时序资源分配信息的配置格式示意图。其中，图2中的标识是指不同种类时序资源分配信息的标识。如之前所述，可以分配16种时序资源分配信息，可以根据实际需要选择时序资源分配信息的内容。容易理解，这些时序资源分配信息的标识各不相同。
图2中的时隙是指PDSCH/PUSCH所处的时隙位置。
需要说明的是，PDSCH或PUSCH具有不同的映射类型type A或type B。
具体的，PDSCH的type A的起始符号位置可以为0、1、2或3；符号的长度可以从X1至14，X1的取值可以根据需要进行选择。
PDSCH的type B的起始符号位置可以为0至12中的任意一个位置，符号的长度可以2个、4个或7个。
PUSCH的type A的起始符号位置可以为0，符号长度可以为Y1至14，Y1的取值可以根据实际需要进行选择。
PUSCH的type B的起始符号的位置可以为0至13中的任意一个位置，符号的长度可以为1至14中的任意一个数量。
需要说明的是，PDSCH或PUSCH的映射类型type A或type B在解调参考信号(Demodulation Reference Signal，DMRS)中的映射位置也是不同的。
本公开实施例给出的信道资源分配方法，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置，避免空闲时刻被其它设备占用，导致不同设备间的信号相互干扰。
在本公开的一些实施例中，物理共享信道的符号的起始位置指示第一个物理共享信道在时隙内传输的起始位置；物理共享信道的符号的长度信息，包括指示最后一个物理共享信道在时隙内传输的传输长度，其它物理共享信道的符号的长度占满整个时隙。在具体实施中，也可以是所有物理共享信道的符号的长度占满整个时隙。
在具体实施中，依据物理共享信道的符号的起始位置和物理共享信道的符号的长度信息配置除第一个及最后一个物理共享信道外，其它物理共享信道的符号在时隙传输的起始位置。
如上所述，由物理共享信道的符号的起始位置可以获知第一个物理共享信道在时隙内传输的起始位置，由物理共享信道的符号的长度信息可以获知最后一个物理共享信道在时隙内传输的传输长度，因此可以根据物理共享信道的符号的起始位置和物理共享信道的符号的长度信息对其它物理共享信道的符号在时隙传输的起始位置进行配置。
例如，可以指示符号的起始位置为m，符号的长度为L，其中m和L均为正数。
符号的起始位置m可以用于指示第一个物理共享信道在其所在时隙内传输的起始位置为符号m；如果第一个物理共享信道所在时隙内的时隙符号数量为N sym，则第一个物理共享信道的符号的长度为N sym-m。
符号的长度L用于指示，最后一个物理共享信道在时隙内传输的起始位置为符号0所在的位置，符号长度为L。
除第一个即最后一个物理共享信道外，其它物理共享信道的起始位置为其所在时隙内符号0所在的位置，符号长度为N sym。其它物理共享信道的符号的长度占满整个时隙。
例如，如图3所示，图3为本公开实施例中一种帧结构示意图。如果符号的起始位置为7，符号的长度为7，则第一个物理共享信道在其所在时隙内传输的起始位置为符号7。如果第一个物理共享信道所在时隙内时隙符号的数量为14，则第一个物理共享信道的符号长度为14-7，即7个。符号长度为7，则最后一个物理共享信道所在时隙内传输的起始位置为符号0所在位置，结束位置为符号6所在位置，即结束位置为符号6所在位置。其它物理共享信道的起始位置为符号0所在位置，它们的符号长度为14。
需要说明的是，此处的“符号0”是至符号标识为0的符号，即第一个符号，并不是指第0个符号。本领域技术人员容易理解符号标识所指示出的符号位置。
通过该方法，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置，避免空闲时刻被其它设备占用，导致不同设备间的信号相互干扰。
在具体实施中，指示至少一个时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置第一个物理共享信道及最后一个物理共享信道的传输应用type A或type B的配置，配置其它物理共享信道的传输采用type A的配置。
在具体实施中，指示时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置第一个物理共享信道的传输应用第一个type A或type B，配置最后一个物理共享信道的传输应用第二个type A或type B，配置其它物理共享信道的传输应用第三个type A或type B。
在具体实施中，指示时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置一个type A的信息或一个type B的信息，配置所有的物理共享信道的传输应用指定的类型。
应为只使用一个时域资源分配信息，所以节省系统资源，增加系统的处理速度。
本公开实施例给出的信道资源分配方法，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置，避免空闲时刻被其它设备占用，导致不同设备间的信号相互干扰。
在本公开的一些实施例中，指示时域资源分配信息包括：指示第一个物理共享信道传输和最后一个物理共享信道传输各占一个时隙资源分配信息。
在具体实施中，第一个时隙资源分配信息包括发送第一个物理共享信道传输与发送物理下行控制信道的时隙偏差，第一个物理共享信道传输符号的起始位置和长度以及第一个物理共享信道传输的映射类型；最后一个时隙资源分配信息包括发送最后一个物理共享信道与发送物理下行控制信道的时隙偏差，最后一个物理共享信道传输符号的起始位置和长度以及最后一个物理共享信道传输的映射类型。
需要说明的是，虽然只指示了第一个物理共享信道传输和最后一个物理 共享信道传输的时隙资源分配信息，但是其它物理共享信道传输所使用的映射类型，根据RRC协议，默认为type A，因此它们不需要指示时隙资源分配信息。
本公开实施例给出的信道资源分配方法，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置，避免空闲时刻被其它设备占用，导致不同设备间的信号相互干扰。
在本公开的一些实施例中，物理共享信道包括物理共享信道包括PUSCH或PDSCH。
在本公开的一些实施例中，还提供了一种计算机可读存储介质，其上存储有计算机指令，计算机指令运行时执行上述实施例中任意一种信道资源分配方法的步骤。
通过本公开实施例给出的计算机可读存储介质，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置，避免空闲时刻被其它设备占用，导致不同设备间的信号相互干扰。
在本公开的一些实施例中，还提供了一种终端，包括存储器和处理器，存储器上存储有可在处理器上运行的计算机指令，处理器运行计算机指令时执行上述实施例中任意一种信道资源分配方法的步骤。
通过本公开实施例给出的终端，使得非授权小区成功接入后，一个发送时刻被尽可能被占满，并且具有灵活的符号起始位置和灵活的符号结束位置，避免空闲时刻被其它设备占用，导致不同设备间的信号相互干扰。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于以计算机可读存储介质中，存储介质可以包括：ROM、RAM、磁盘或光盘等。
虽然本公开披露如上，但本公开并非限定于此。任何本领域技术人员，在不脱离本公开的精神和范围内，均可作各种更动与修改，因此本公开的保护范围应当以权利要求所限定的范围为准。

Claims (11)

  1. 一种信道资源分配方法，其特征在于，包括:
    接入非授权频谱小区并配置所述非授权频谱小区内的至少一个物理共享信道；
    如果RRC信令配置至少一个物理共享信道的时隙聚合个数大于1，则DCI指示本次物理共享信道调度的时隙个数；所述DCI还指示至少一个时域资源分配信息；
    所述时域资源分配信息包括：所述物理共享信道所在的时隙与发送物理下行控制信道的时隙偏差、所述物理共享信道的符号的起始位置、所述物理共享信道的符号的长度信息、以及所述物理共享信道的映射类型；
    所述物理共享信道的映射类型包括type A和type B。
  2. 如权利要求1所述的方法，其特征在于，所述物理共享信道的符号的起始位置指示第一个物理共享信道在时隙内传输的起始位置；所述物理共享信道的符号的长度信息，包括指示最后一个物理共享信道在时隙内传输的传输长度。
  3. 如权利要求2所述的方法，其特征在于，还包括：依据所述物理共享信道的符号的起始位置和所述物理共享信道的符号的长度信息配置除第一个及最后一个物理共享信道外，其它物理共享信道的符号在时隙传输的起始位置，所述其它物理共享信道的符号的长度占满整个时隙。
  4. 如权利要求2所述的方法，其特征在于，所述指示至少一个时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置所述第一个物理共享信道及所述最后一个物理共享信道的传输应用type A或type B的配置，配置其它物理共享信道的传输应用type A的配置。
  5. 如权利要求2所述的方法，其特征在于，所述指示时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置所述第一个物理共享信道的传输应用第一个type A或type B，配置所述最后一个物理共享信道的传输应用第二个type A或type B，配置其它物理共享信道的传输应用第三个type A或type B。
  6. 如权利要求2所述的方法，其特征在于，所述指示时域资源分配信息还包括，通过RRC指示在一个时隙资源分配信息中配置一个type A的信息或一个type B的信息，配置所有的所述物理共享信道的传输应用指定的类型。
  7. 如权利要求2所述的方法，其特征在于，所述指示时域资源分配信息包括：指示第一个物理共享信道传输和最后一个物理共享信道传输各占一个时隙资源分配信息。
  8. 如权利要求7所述的方法，其特征在于，所述第一个时隙资源分配信息包括发送第一个物理共享信道与发送物理下行控制信道的时隙偏差，所述第一个物理共享信道传输符号的起始位置和长度以及所述第一个物理共享信道传输的映射类型；所述最后一个时隙资源分配信息包括最后一个物理共享信道传输与发送物理下行控制信道的时隙偏差，所述最后一个物理共享信道传输符号的起始位置和长度以及所述最后一个物理共享信道传输的映射类型。
  9. 如权利要求1所述的方法，其特征在于，所述物理共享信道包括PUSCH或PDSCH。
  10. 一种计算机可读存储介质，其上存储有计算机指令，其特征在于，所述计算机指令运行时执行权利要求1至9中任一项所述信道资源分配方法的步骤。
  11. 一种终端，包括存储器和处理器，所述存储器上存储有可在所述处理器上运行的计算机指令，其特征在于，所述处理器运行所述计算机指令时执行权利要求1至9中任一项所述信道资源分配方法的步骤。
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