WO2016138784A1 - 一种调度方法及终端 - Google Patents
一种调度方法及终端 Download PDFInfo
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- WO2016138784A1 WO2016138784A1 PCT/CN2015/098687 CN2015098687W WO2016138784A1 WO 2016138784 A1 WO2016138784 A1 WO 2016138784A1 CN 2015098687 W CN2015098687 W CN 2015098687W WO 2016138784 A1 WO2016138784 A1 WO 2016138784A1
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- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a scheduling method and a terminal.
- LTE Long Term Evolution
- Table 1 The system bandwidth of Long Term Evolution (LTE) has six configurations, as shown in Table 1.
- Rel-12 and previous LTE terminals require support for 20 megahertz (MHz) system bandwidth to operate within different system bandwidths.
- Rel-13 is currently studying LTE-based Machine-Type Communications (MTC) enhancements and proposes to define a terminal (UE) type that only supports 1.4MHz bandwidth to reduce terminal complexity and cost. It can be seen that when the terminal works in a system with a bandwidth greater than 1.4 MHz, it can only work in a part of the bandwidth of the system bandwidth.
- MTC Machine-Type Communications
- the Rel-13 MTC UE supports a variety of Transport Block Size (TBS), which is a minimum of a dozen bits and a maximum of about one thousand bits. Therefore, multiple encoding rates need to be supported in the system.
- TBS Transport Block Size
- MTC UEs may be placed in deep fading scenarios such as basements, and coverage is severely limited.
- the terminal In order to be able to communicate with the base station, the terminal needs to perform data transmission and reception in a repeated manner, that is, it is necessary to repeatedly transmit or receive a plurality of subframes for one data packet.
- the receiving end combines and receives data repeatedly transmitted repeatedly, thereby improving data transmission performance.
- the data transmission and reception of the UE in the LTE system depends on the scheduling of the base station.
- the scheduling information required for data transmission and reception includes: Modulation and Coding Scheme (MCS) level, location and number of physical resource block (PRB) pairs, precoding information, and the like.
- MCS Modulation and Coding Scheme
- PRB physical resource block
- the UE first receives the Downlink Control Information (DCI) sent by the base station to obtain scheduling information, and then receives the Physical Downlink Shared Channel (PDSCH) or sends the physical uplink sharing according to the scheduling information.
- DCI Downlink Control Information
- PDSCH Physical Downlink Shared Channel
- Channel Physical Uplink Shared Channel
- the UE receives the high-layer signaling obtained by the base station to obtain scheduling information, and then periodically receives the PDSCH or transmits the PUSCH according to the scheduling information.
- the MTC UE performs data transmission and reception in a repeated manner, but there is no clear scheme for how the MTC UE determines the number of repeated transmissions of the physical channel.
- the embodiment of the invention provides a scheduling method and a terminal, which are used to provide a solution for the MTC UE to determine the number of repeated transmissions of the physical channel for data transmission.
- a scheduling method including:
- the terminal UE acquires scheduling information, where the scheduling information is used to schedule physical channel transmission;
- the UE transmits or receives the physical channel according to the determined number of repeated transmissions.
- the specific information includes at least one of the following:
- the physical channel is a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH).
- PDSCH physical downlink shared channel
- PUSCH physical uplink shared channel
- mapping relationship is configured by the base station to the UE.
- mapping relationship is pre-agreed by the base station and the UE.
- the mapping relationship is a group selected from a plurality of sets of the mapping relationships pre-agreed by the base station and the UE according to a notification by a base station.
- the method before determining the number of repeated transmissions corresponding to the physical channel, the method further includes:
- Determining the number of repeated transmissions corresponding to the physical channel including:
- the UE calculates a product of the obtained number of repeated transmissions and the preset parameter, and rounds the product, and determines the obtained result as the number of repeated transmissions corresponding to the physical channel.
- determining the number of repeated transmissions corresponding to the physical channel includes:
- the UE determines the acquired number of repeated transmissions as the number of repeated transmissions corresponding to the physical channel.
- the terminal UE acquires scheduling information, including:
- the UE acquires the scheduling information by using high layer signaling sent by the base station.
- a terminal including:
- An acquiring module configured to acquire scheduling information, where the scheduling information is used to schedule physical channel transmission
- a first determining module configured to determine specific information according to the scheduling information, where, when the specific information is different, a coding rate used by the physical channel is different;
- a second determining module configured to determine, according to a mapping relationship between the specific information and the repeated transmission times, and the determined specific information, the number of repeated transmissions corresponding to the physical channel;
- a transmission module configured to send or receive the physical channel according to the determined number of repeated transmissions.
- the specific information includes at least one of the following:
- the physical channel is a physical downlink shared channel (PDSCH) or a physical uplink shared channel (PUSCH).
- PDSCH physical downlink shared channel
- PUSCH physical uplink shared channel
- mapping relationship is configured by the base station to the UE.
- mapping relationship is pre-agreed by the base station and the UE.
- the mapping relationship is a group selected from a plurality of sets of the mapping relationships pre-agreed by the base station and the UE according to a notification by a base station.
- the obtaining module is further configured to:
- the second determining module is specifically configured to:
- the second determining module is specifically configured to:
- the obtained number of repeated transmissions is determined as the number of repeated transmissions corresponding to the physical channel.
- the acquiring module is specifically configured to:
- the scheduling information is obtained by high layer signaling sent by the base station.
- a terminal including a processor, a memory, and a transceiver, wherein the memory stores a preset program, and the processor is configured to determine a preset program in the memory, and execute the following process according to the program:
- the physical channel is transmitted or received according to the determined number of repeated transmissions.
- the specific information is used to indicate a coding rate used for transmitting a physical channel, where the specific information includes at least one of the following:
- the scheduling information carries the MCS level information, and the processor obtains the MCS level information from the scheduling information; or
- the scheduling information carries coding rate level information, and the processor acquires coding rate level information from the scheduling information.
- the physical channel is a PDSCH or a PUSCH.
- the mapping relationship is configured by the base station to the terminal;
- mapping relationship is pre-agreed by the base station and the terminal.
- the mapping relationship is a group selected from a plurality of sets of the mapping relationships pre-agreed by the base station and the terminal according to a notification by a base station.
- the processor is further configured to:
- the processor is further configured to:
- the number of times of the repeated transmission obtained is determined as the number of repeated transmissions corresponding to the physical channel.
- the processor is further configured to:
- the transceiver is instructed to receive the high layer signaling sent by the base station, and obtain the scheduling information by using the high layer signaling sent by the base station.
- the UE determines specific information indicating a coding rate used for transmitting the physical channel according to the scheduling information.
- the coding rate used to transmit the physical channel is different, according to the specific information. Determining the number of repeated transmissions corresponding to the physical channel by determining the mapping relationship between the number of repeated transmissions and the determined specific information, so that the physical channel can be sent or received according to the determined number of repeated transmissions, and the physical channel is repeatedly transmitted for the MTC UE. The number of times provides a solution for data transfer.
- using the coding rate implicitly notifying the number of repeated transmissions of the physical channel, avoiding adding additional control information, can save system overhead.
- flexibly adjusting the number of repeated transmissions of the corresponding physical channel according to different coding rates can avoid unnecessary transmission, improve system efficiency, and reduce terminal power consumption.
- FIG. 1 is a schematic flowchart of a detailed method for scheduling a UE according to an embodiment of the present invention
- FIG. 2 is a schematic structural diagram of a UE according to an embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of another UE according to an embodiment of the present invention.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- UMTS Universal Mobile Telecommunication System
- a user equipment includes but is not limited to a mobile station (Mobile Station, MS), a mobile terminal (Mobile Terminal), a mobile telephone (Mobile Telephone),
- the user equipment can communicate with one or more core networks via a Radio Access Network (RAN), for example, the user equipment can be a mobile phone (or called a mobile device).
- RAN Radio Access Network
- the user devices can also be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices.
- a base station may refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
- the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
- IP Internet Protocol
- the base station can also coordinate attribute management of the air interface.
- the base station may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B), the invention is not limited.
- BTS Base Transceiver Station
- NodeB base station
- NodeB evolved base station
- LTE Long Term Evolutional Node B
- the detailed method for scheduling the MTC UE is as follows:
- Step 101 The UE acquires scheduling information, where the scheduling information is used to schedule physical channel transmission.
- the manner in which the UE obtains the scheduling information includes but is not limited to the following two types:
- Manner 1 The UE acquires scheduling information by using downlink control signaling (DCI) sent by the base station;
- DCI downlink control signaling
- Manner 2 The UE acquires scheduling information by using high-level signaling sent by the base station.
- Step 102 The UE determines specific information according to the scheduling information, where the coding rate used to transmit the physical channel is different when the specific information is different.
- This specific information is used to indicate the coding rate used to transmit the physical channel.
- the coding rate used by the transmission physical channel indicated by the different specific information is different.
- the physical channel is a PDSCH or a PUSCH.
- the specific information for the physical channel includes at least one of MCS level information, TBS level information, and encoding rate level information.
- the coding rate used to transmit the physical channel is different; when a fixed number of PRBs are used to transmit the physical channel, when the TBS level is different, the coding rate used for transmitting the physical channel is different; when the coding rate level is different, the physical channel is transmitted.
- the encoding rate used is different.
- the scheduling information carries the MCS level information
- the UE acquires the MCS level information from the scheduling information
- the physical channel is transmitted by using a fixed number of PRBs, and the scheduling information carries the TBS level information, and the UE obtains the TBS level information from the scheduling information; or
- the scheduling information carries the coding rate level information, and the UE acquires the coding rate level information from the scheduling information.
- Step 103 The UE determines according to the mapping relationship between the specific information and the number of repeated transmissions and the specific information determined. The number of repeated transmissions corresponding to the physical channel.
- mapping between the specific information and the number of repeated transmissions includes, but is not limited to, the following:
- the base station is configured to the UE.
- the base station and the UE pre-arrange a mapping relationship between a specific set of information and the number of repeated transmissions.
- the base station and the UE agree on a mapping relationship between multiple sets of specific information and repeated transmission times by using a protocol.
- the UE determines to use one of the plurality of mapping relationships according to the notification of the base station.
- the manner in which the UE determines the number of repeated transmissions corresponding to the physical channel includes, but is not limited to, the following two types:
- the UE acquires the number of repeated transmissions corresponding to the specific information determined in the mapping relationship between the specific information and the number of repeated transmissions;
- the UE determines the number of repeated transmissions obtained as the number of repeated transmissions corresponding to the physical channel.
- the UE receives the preset parameters configured by the base station before determining the number of repeated transmissions corresponding to the physical channel.
- the process of determining the number of repeated transmissions corresponding to the physical channel by the UE is:
- the UE acquires the number of repeated transmissions corresponding to the specific information determined in the mapping relationship between the specific information and the number of repeated transmissions;
- Step 104 The UE receives or sends a physical channel according to the determined number of repeated transmissions.
- the scheduling method provided in the embodiment of the present invention is exemplified by two specific embodiments.
- the UE determines the mapping relationship between the MCS or the coding rate or the TBS level information and the number of repeated transmissions, as shown in Table 2.
- the UE receives scheduling information by using downlink control signaling or higher layer signaling.
- the number of repeated transmissions of the received PDSCH or the transmitted PUSCH is determined to be 10 times according to the mapping relationship.
- the number of repeated transmissions of the received PDSCH or the transmitted PUSCH is 26 times.
- the UE receives scheduling information by using downlink control signaling or higher layer signaling.
- the UE determines, according to the scheduling information, that the MCS or the coding rate or the TBS level is 0, the number of repeated transmissions of the received PDSCH or the transmitted PUSCH is determined according to the mapping relationship and the preset parameter: Times, among them, Represents a rounding operation. akin,
- the UE determines that the MCS or the coding rate or the TBS level is 4 according to the scheduling information, the number of repeated transmissions of the received PDSCH or the transmitted PUSCH is determined according to the mapping relationship and the preset parameter: Times, among them, Represents a rounding operation.
- the UE mainly includes :
- the obtaining module 201 is configured to acquire scheduling information, where the scheduling information is used to schedule physical channel transmission;
- the first determining module 202 is configured to determine specific information according to the scheduling information, where the encoding rate used to transmit the physical channel is different when the specific information is different;
- the second determining module 203 is configured to determine, according to the mapping relationship between the specific information and the number of repeated transmissions and the determined specific information, the number of repeated transmissions corresponding to the physical channel;
- the transmitting module 204 is configured to send or receive the physical channel according to the determined number of repeated transmissions.
- This specific information is used to indicate the coding rate used to transmit the physical channel.
- the specific information includes at least one of the following:
- the scheduling information carries the MCS level information
- the first determining module 202 obtains the MCS level information from the scheduling information
- the physical channel is transmitted by using a fixed number of PRBs, and the scheduling information carries the TBS level information, and the first determining module 202 obtains the TBS level information from the scheduling information; or
- the scheduling information carries the encoding rate level information, and the first determining module 202 obtains the encoding rate level information from the scheduling information.
- the physical channel is a PDSCH or a PUSCH.
- mapping between the specific information and the number of repeated transmissions includes, but is not limited to, the following:
- the mapping relationship is configured by the base station to the UE.
- the base station and the UE pre-arrange a mapping relationship between a specific set of information and the number of repeated transmissions.
- the mapping relationship is a group selected from a plurality of mapping relationships pre-agreed by the base station and the UE according to the notification of the base station.
- the second determining module 203 determines a manner of the number of repeated transmissions corresponding to the physical channel, including but not limited to the following two types:
- the get module is also used to:
- the second determining module is specifically configured to:
- the product of the obtained repeated transmission times and the preset parameter is calculated, and the product is rounded, and the obtained result is determined as the number of repeated transmissions corresponding to the physical channel.
- the second determining module is specifically configured to:
- the number of times of the repeated transmission obtained is determined as the number of repeated transmissions corresponding to the physical channel.
- the acquiring module is specifically configured to:
- the scheduling information is obtained by the high layer signaling sent by the base station.
- the UE mainly includes The processor 301, the memory 302, and the transceiver 303, wherein the memory 302 stores a preset program, and the processor 301 is configured to determine a program preset in the memory 302, and execute the following process according to the program:
- the physical channel is transmitted or received according to the determined number of repeated transmissions.
- This specific information is used to indicate the coding rate used to transmit the physical channel.
- the specific information includes at least one of the following:
- the scheduling information carries the MCS level information
- the processor 301 obtains the MCS level information from the scheduling information
- the physical channel is transmitted by using a fixed number of PRBs, the scheduling information carries the TBS level information, and the processor 301 obtains the TBS level information from the scheduling information; or
- the scheduling information carries the coding rate level information, and the processor 301 obtains the coding rate level information from the scheduling information.
- the physical channel is a PDSCH or a PUSCH.
- mapping between the specific information and the number of repeated transmissions includes, but is not limited to, the following:
- the mapping relationship is configured by the base station to the UE.
- the base station and the UE pre-arrange a mapping relationship between a specific set of information and the number of repeated transmissions.
- the mapping relationship is a group selected from a plurality of mapping relationships pre-agreed by the base station and the UE according to the notification of the base station.
- the processor 301 determines a manner of the number of repeated transmissions corresponding to the physical channel, including but not limited to the following two types:
- the processor 301 receives the preset parameters configured by the base station through the transceiver 303 before determining the number of repeated transmissions corresponding to the physical channel;
- the processor 301 obtains the number of repeated transmissions corresponding to the specific information in the mapping relationship, calculates the product of the obtained number of repeated transmissions and the preset parameter, and rounds the product, and determines the obtained result as the number of repeated transmissions corresponding to the physical channel.
- the processor 301 acquires the number of repeated transmissions corresponding to the specific information in the mapping relationship
- the number of times of the repeated transmission obtained is determined as the number of repeated transmissions corresponding to the physical channel.
- the processor 301 instructs the transceiver 303 to receive downlink control signaling sent by the base station, and acquires scheduling information by using downlink control signaling sent by the base station;
- the transceiver 303 is configured to receive the high layer signaling sent by the base station, and obtain the scheduling information by using the high layer signaling sent by the base station.
- the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 301 and various circuits of memory represented by memory 302.
- Bus architecture Various other circuits, such as peripherals, voltage regulators, power management circuits, and the like, can be linked together, as is well known in the art and, therefore, will not be further described herein.
- the bus interface provides an interface.
- Transceiver 303 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
- the processor 301 is responsible for managing the bus architecture and general processing, and the memory 302 can store data used by the processor 301 in performing operations.
- the UE determines specific information indicating a coding rate used for transmitting the physical channel according to the scheduling information.
- the specific information is different, the coding rate used to transmit the physical channel is different, according to the specific information. Determining the number of repeated transmissions corresponding to the physical channel by determining the mapping relationship between the number of repeated transmissions and the determined specific information, so that the physical channel can be sent or received according to the determined number of repeated transmissions, and the physical channel is repeatedly transmitted for the MTC UE. The number of times provides a solution for data transfer.
- flexibly adjusting the number of repeated transmissions of the corresponding physical channel according to different coding rates can avoid unnecessary transmission, improve system efficiency, and reduce terminal power consumption.
- embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
- computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
- the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
- the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
- These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
- the instructions are provided for implementing one or more processes and/or block diagrams in the flowchart The steps of the function specified in the box or in multiple boxes.
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Abstract
一种调度方法及终端，用以为MTC UE确定物理信道重复传输的次数以进行数据传输提供解决方案。该方法为：终端UE获取调度信息，所述调度信息用于调度物理信道传输；所述UE根据所述调度信息确定特定信息，其中，所述特定信息不同时，传输所述物理信道所使用的编码速率不同；所述UE根据特定信息与重复传输次数之间的映射关系以及确定的所述特定信息，确定所述物理信道对应的重复传输次数；所述UE根据确定的所述重复传输次数发送或接收所述物理信道。
Description
本申请要求在2015年03月02日提交中国专利局、申请号为201510093288.6、发明名称为“一种调度方法及终端”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
本发明涉及通信技术领域，尤其涉及一种调度方法及终端。
长期演进(LTE)的系统带宽有6种配置，如表1所示。Rel-12及之前的LTE终端要求支持20兆赫兹(MHz)的系统带宽，以能够在不同的系统带宽内工作。
表1
| 系统带宽(单位：兆赫兹) | .4 | 0 | 5 | 0 | ||
| 传输带宽配置(单位：资源块数目) | 5 | 5 | 0 | 5 | 00 |
Rel-13目前正在研究基于LTE的机器类型通信(Machine-Type Communications，MTC)增强，并提出定义一种仅支持1.4MHz带宽的终端(UE)类型，以降低终端的复杂度和成本。可见，当该终端工作在大于1.4MHz带宽的系统时，只能在系统带宽中的一部分带宽工作。
另外，Rel-13 MTC UE支持多种传输块大小(Transport Block Size，TBS)，最小可能十几比特，最大约为一千比特。因此，系统中需要支持多种编码速率。
MTC UE可能被放置在地下室等深衰场景下，覆盖严重受限。为了能够与基站通信，终端需要采用重复的方式进行数据收发，即对于一个数据包需要使用多个子帧重复发送或接收。接收端将多次重复传输的数据进行合并接收，从而提高数据传输性能。
LTE系统中UE进行数据收发依赖于基站的调度。数据收发所需的调度信息包括：调制编码方式(Modulation and Coding Scheme，MCS)等级、物理资源块(Physical Resource Block，PRB)对的位置及数量、预编码信息等。对于动态调度，UE首先接收基站发送的下行控制信令(Downlink Control Information，DCI)获取调度信息，然后根据该调度信息接收物理下行共享信道(Physical Downlink Shared Channel，PDSCH)或发送物理上行共享
信道(Physical Uplink Shared Channel，PUSCH)。对于半静态调度，UE接收基站发送的高层信令获取调度信息，然后根据调度信息周期性的接收PDSCH或发送PUSCH。
目前，MTC UE采用重复的方式进行数据收发，但MTC UE如何确定物理信道重复传输的次数尚无明确方案。
发明内容
本发明实施例提供一种调度方法及终端，用以为MTC UE确定物理信道重复传输的次数以进行数据传输提供解决方案。
本发明实施例提供的具体技术方案如下：
第一方面，提供了一种调度方法，包括：
终端UE获取调度信息，所述调度信息用于调度物理信道传输；
所述UE根据所述调度信息确定特定信息，其中，所述特定信息不同时，传输所述物理信道所使用的编码速率不同；
所述UE根据特定信息与重复传输次数之间的映射关系以及确定的所述特定信息，确定所述物理信道对应的重复传输次数；
所述UE根据确定的所述重复传输次数发送或接收所述物理信道。
具体实施中，所述特定信息至少包括以下任意一种：
调制编码方式MCS等级信息；
传输块大小TBS等级信息；
编码速率等级信息。
具体实施中，所述物理信道为物理下行共享信道PDSCH或物理上行共享信道PUSCH。
具体实施中，所述映射关系由基站配置给所述UE；或者，
所述映射关系由基站与所述UE预先约定；或者，
所述映射关系为根据基站的通知，从所述基站与所述UE预先约定的多组所述映射关系中选择的一组。
一个具体实施中，确定所述物理信道对应的重复传输次数之前，所述方法还包括：
所述UE接收基站配置的预设参数；
确定所述物理信道对应的重复传输次数，包括：
所述UE获取所述映射关系中所述特定信息对应的重复传输次数；
所述UE计算获取的所述重复传输次数与所述预设参数的乘积，并对乘积进行取整，将得到的结果确定为所述物理信道对应的重复传输次数。
另一具体实施中，确定所述物理信道对应的重复传输次数，包括：
所述UE获取所述映射关系中所述特定信息对应的重复传输次数；
所述UE将获取的所述重复传输次数确定为所述物理信道对应的重复传输次数。
具体实施中，终端UE获取调度信息，包括：
所述UE通过基站发送的下行控制信令获取所述调度信息；
或者，
所述UE通过基站发送的高层信令获取所述调度信息。
第二方面，提供了一种终端，包括：
获取模块，用于获取调度信息，所述调度信息用于调度物理信道传输；
第一确定模块，用于根据所述调度信息确定特定信息，其中，所述特定信息不同时，传输所述物理信道所使用的编码速率不同；
第二确定模块，用于根据特定信息与重复传输次数之间的映射关系以及确定的所述特定信息，确定所述物理信道对应的重复传输次数；
传输模块，用于根据确定的所述重复传输次数发送或接收所述物理信道。
具体实施中，所述特定信息至少包括以下任意一种：
调制编码方式MCS等级信息；
传输块大小TBS等级信息；
编码速率等级信息。
具体实施中，所述物理信道为物理下行共享信道PDSCH或物理上行共享信道PUSCH。
具体实施中，所述映射关系由基站配置给所述UE；或者，
所述映射关系由基站与所述UE预先约定；或者，
所述映射关系为根据基站的通知，从所述基站与所述UE预先约定的多组所述映射关系中选择的一组。
一个具体实施中，所述获取模块还用于：
在所述第二确定模块确定所述物理信道对应的重复传输次数之前，接收基站配置的预设参数；
所述第二确定模块具体用于：
获取所述映射关系中所述特定信息对应的重复传输次数；
计算获取的所述重复传输次数与所述预设参数的乘积，并对乘积进行取整，将得到的结果确定为所述物理信道对应的重复传输次数。
另一具体实施中，所述第二确定模块具体用于：
获取所述映射关系中所述特定信息对应的重复传输次数；
将获取的所述重复传输次数确定为所述物理信道对应的重复传输次数。
具体实施中，所述获取模块具体用于：
通过基站发送的下行控制信令获取所述调度信息；
或者，
通过基站发送的高层信令获取所述调度信息。
第三方面，提供一种终端，包括处理器、存储器和收发机，其中，存储器中保存有预设的程序，处理器用于确定存储器中预设的程序，按照该程序执行以下过程：
通过收发机获取调度信息，该调度信息用于调度物理信道传输；
根据该调度信息确定特定信息，其中，该特定信息不同时，传输物理信道所使用的编码速率不同；
根据特定信息与重复传输次数之间的映射关系以及确定的该特定信息，确定物理信道对应的重复传输次数；
根据确定的重复传输次数发送或接收该物理信道。
具体实施中，所述特定信息用于指示传输物理信道所使用的编码速率，其中，所述特定信息至少包括以下任意一种：
调制编码方式MCS等级信息；
传输块大小TBS等级信息；
编码速率等级信息。
具体实施中，调度信息中携带MCS等级信息，所述处理器从调度信息中获取该MCS等级信息；或者，
使用固定数量的PRB传输物理信道，调度信息中携带TBS等级信息，所述处理器从调度信息中获取该TBS等级信息；或者，
调度信息中携带编码速率等级信息，所述处理器从调度信息中获取编码速率等级信息。
具体实施中，所述物理信道为PDSCH或PUSCH。
具体实施中，所述映射关系由基站配置给所述终端；或者，
所述映射关系由基站与所述终端预先约定；或者，
所述映射关系为根据基站的通知，从所述基站与所述终端预先约定的多组所述映射关系中选择的一组。
具体实施中，所述处理器还用于：
在确定物理信道对应的重复传输次数之前，通过收发机接收基站配置的预设参数；
获取映射关系中特定信息对应的重复传输次数，计算获取的重复传输次数与预设参数的乘积，并对该乘积进行取整，将得到的结果确定为物理信道对应的重复传输次数。
具体实施中，所述处理器还用于：
获取映射关系中特定信息对应的重复传输次数；
将获取的该重复传输次数确定为物理信道对应的重复传输次数。
具体实施中，所述处理器还用于：
收发机接收基站发送的下行控制信令，通过基站发送的下行控制信令获取调度信息；
或者，
指示收发机接收基站发送的高层信令，通过基站发送的高层信令获取调度信息。
基于上述技术方案，本发明实施例中，UE根据调度信息确定指示传输物理信道所使用的编码速率的特定信息，特定信息不同时，传输所述物理信道所使用的编码速率不同，根据特定信息与重复传输次数之间的映射关系以及确定的该特定信息，确定物理信道对应的重复传输次数，从而能够根据确定的该重复传输次数发送或接收所述物理信道，为MTC UE确定物理信道重复传输的次数以进行数据传输提供了解决方案。并且，使用编码速率隐式通知物理信道的重复传输次数，避免增加额外的控制信息，可以节约系统开销。另外，根据不同编码速率灵活调整对应物理信道的重复传输次数可以避免不必要的传输，提高系统效率并降低终端功耗。
图1为本发明实施例中UE进行调度的详细方法流程示意图；
图2为本发明实施例中UE的结构示意图；
图3为本发明实施例中另一UE结构示意图。
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
应理解，本发明的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)等。
还应理解，在本发明实施例中，用户设备(User Equipment，UE)包括但不限于移动台(Mobile Station，MS)、移动终端(Mobile Terminal)、移动电话(Mobile Telephone)、
手机(handset)及便携设备(portable equipment)等，该用户设备可以经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信，例如，用户设备可以是移动电话(或称为“蜂窝”电话)、具有无线通信功能的计算机等，用户设备还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
在本发明实施例中，基站(例如，接入点)可以是指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，本发明并不限定。
下面结合附图对本发明优选地实施方式进行详细说明。
本发明实施例中，如图1所示，MTC UE进行调度的详细方法流程如下：
步骤101：UE获取调度信息，该调度信息用于调度物理信道传输。
具体实施中，UE获取调度信息的方式包括但不限于以下两种：
方式一，UE通过基站发送的下行控制信令(DCI)获取调度信息；
方式二，UE通过基站发送的高层信令获取调度信息。
步骤102：UE根据调度信息确定特定信息，其中，特定信息不同时，传输物理信道所使用的编码速率不同。
该特定信息用于指示传输物理信道所使用的编码速率。
该实施例中，不同的特定信息所指示的传输物理信道所使用的编码速率不同。
其中，物理信道为PDSCH或PUSCH。
其中，用于物理信道的特定信息至少包括：MCS等级信息、TBS等级信息以及编码速率等级信息中的任意一种。
具体地，MCS等级不同时，传输物理信道所使用的编码速率不同；使用固定数量PRB传输物理信道，TBS等级不同时，传输物理信道所使用的编码速率不同；编码速率等级不同时，传输物理信道所使用的编码速率不同。
具体地，调度信息中携带MCS等级信息，UE从调度信息中获取该MCS等级信息；或者，
使用固定数量的PRB传输物理信道，调度信息中携带TBS等级信息，UE从调度信息中获取该TBS等级信息；或者，
调度信息中携带编码速率等级信息，UE从调度信息中获取编码速率等级信息。
步骤103：UE根据特定信息与重复传输次数之间的映射关系以及确定的特定信息，确
定物理信道对应的重复传输次数。
其中，特定信息与重复传输次数之间的映射关系的配置方式包括但不限于以下几种：
方式一，由基站配置给该UE。
方式二，基站与该UE预先约定一组特定信息与重复传输次数之间的映射关系。
方式三，基站与UE通过协议约定多组特定信息与重复传输次数之间的映射关系。UE根据基站的通知确定使用该多组映射关系中的一组。
具体地，UE确定物理信道对应的重复传输次数的方式，包括但不限于以下两种：
方式一：
UE获取特定信息与重复传输次数之间的映射关系中确定的特定信息对应的重复传输次数；
UE将获取的该重复传输次数确定为物理信道对应的重复传输次数。
方式二：
UE在确定物理信道对应的重复传输次数之前，接收基站配置的预设参数。
UE确定物理信道对应的重复传输次数的过程为：
UE获取特定信息与重复传输次数之间的映射关系中确定的特定信息对应的重复传输次数；
计算获取的该重复传输次数与该预设参数的乘积，并对乘积做取整处理，将得到的结果确定为物理信道对应的重复传输次数。
步骤104：UE根据确定的重复传输次数接收或发送物理信道。
以下通过两个具体实施例，对本发明实施例中提供的调度方法进行举例说明。
第一具体实施例：
UE确定MCS或编码速率或TBS等级信息与重复传输次数的映射关系，如表2所示。
表2
| MCS/编码速率/TBS等级 | 重复传输次数 |
| 0 | 10 |
| 1 | 13 |
| 2 | 16 |
| 3 | 21 |
| 4 | 26 |
| 5 | 32 |
| 6 | 37 |
| 7 | 44 |
| 8 | 50 |
| 9 | 57 |
UE通过下行控制信令或高层信令接收调度信息。
若根据该调度信息确定MCS或编码速率或TBS等级为0，则根据该映射关系确定接收的PDSCH或发送的PUSCH的重复传输次数为10次。
类似的，若MCS或编码速率或TBS等级为4，则接收的PDSCH或发送的PUSCH的重复传输次数为26次。
第二具体实施例：
协议约定的映射关系如表2所示，基站通知UE预设参数K＝1.5。
UE通过下行控制信令或高层信令接收调度信息。
若UE根据该调度信息确定MCS或编码速率或TBS等级为0，则根据该映射关系以及该预设参数确定接收的PDSCH或发送的PUSCH的重复传输次数为：
次，其中，
表示取整运算。类似的，
若UE根据该调度信息确定MCS或编码速率或TBS等级为4，则根据该映射关系以及该预设参数确定接收的PDSCH或发送的PUSCH的重复传输次数为：
次，其中，
表示取整运算。
基于同一发明构思，本发明实施例中提供了一种UE，该UE的具体实施可参见上述方法实施例部分关于UE的描述，重复之处不再赘述，如图2所示，该UE主要包括：
获取模块201，用于获取调度信息，该调度信息用于调度物理信道传输；
第一确定模块202，用于根据该调度信息确定特定信息，其中，该特定信息不同时，传输物理信道所使用的编码速率不同；
第二确定模块203，用于根据特定信息与重复传输次数之间的映射关系以及确定的该特定信息，确定物理信道对应的重复传输次数；
传输模块204，用于根据确定的重复传输次数发送或接收该物理信道。
该特定信息用于指示传输物理信道所使用的编码速率。
其中，特定信息至少包括以下任意一种：
调制编码方式MCS等级信息；
传输块大小TBS等级信息；
编码速率等级信息。
具体地，调度信息中携带MCS等级信息，第一确定模块202从调度信息中获取该MCS等级信息；或者，
使用固定数量的PRB传输物理信道，调度信息中携带TBS等级信息，第一确定模块202从调度信息中获取该TBS等级信息；或者，
调度信息中携带编码速率等级信息，第一确定模块202从调度信息中获取编码速率等级信息。
其中，物理信道为PDSCH或PUSCH。
其中，特定信息与重复传输次数之间的映射关系的配置方式包括但不限于以下几种：
方式一，映射关系由基站配置给UE。
方式二，基站与该UE预先约定一组特定信息与重复传输次数之间的映射关系。
方式三，映射关系为根据基站的通知，从基站与UE预先约定的多组映射关系中选择的一组。
具体地，第二确定模块203确定物理信道对应的重复传输次数的方式，包括但不限于以下两种：
方式一：
获取模块还用于：
在第二确定模块确定物理信道对应的重复传输次数之前，接收基站配置的预设参数；
第二确定模块具体用于：
获取映射关系中特定信息对应的重复传输次数；
计算获取的重复传输次数与预设参数的乘积，并对该乘积进行取整，将得到的结果确定为物理信道对应的重复传输次数。
方式二：
第二确定模块具体用于：
获取映射关系中特定信息对应的重复传输次数；
将获取的该重复传输次数确定为物理信道对应的重复传输次数。
具体地，所述获取模块具体用于：
通过基站发送的下行控制信令获取调度信息；
或者，
通过基站发送的高层信令获取调度信息。
基于同一发明构思，本发明实施例中提供了一种UE，该UE的具体实施可参见上述方法实施例部分关于UE的描述，重复之处不再赘述，如图3所示，该UE主要包括处理器301、存储器302和收发机303，其中，存储器302中保存有预设的程序，处理器301用于确定存储器302中预设的程序，按照该程序执行以下过程：
通过收发机303获取调度信息，该调度信息用于调度物理信道传输；
根据该调度信息确定特定信息，其中，该特定信息不同时，传输物理信道所使用的编码速率不同；
根据特定信息与重复传输次数之间的映射关系以及确定的该特定信息，确定物理信道对应的重复传输次数；
根据确定的重复传输次数发送或接收该物理信道。
该特定信息用于指示传输物理信道所使用的编码速率。
其中，特定信息至少包括以下任意一种：
调制编码方式MCS等级信息；
传输块大小TBS等级信息；
编码速率等级信息。
具体地，调度信息中携带MCS等级信息，处理器301从调度信息中获取该MCS等级信息；或者，
使用固定数量的PRB传输物理信道，调度信息中携带TBS等级信息，处理器301从调度信息中获取该TBS等级信息；或者，
调度信息中携带编码速率等级信息，处理器301从调度信息中获取编码速率等级信息。
其中，物理信道为PDSCH或PUSCH。
其中，特定信息与重复传输次数之间的映射关系的配置方式包括但不限于以下几种：
方式一，映射关系由基站配置给UE。
方式二，基站与该UE预先约定一组特定信息与重复传输次数之间的映射关系。
方式三，映射关系为根据基站的通知，从基站与UE预先约定的多组映射关系中选择的一组。
具体地，处理器301确定物理信道对应的重复传输次数的方式，包括但不限于以下两种：
方式一：
处理器301在确定物理信道对应的重复传输次数之前，通过收发机303接收基站配置的预设参数；
处理器301获取映射关系中特定信息对应的重复传输次数，计算获取的重复传输次数与预设参数的乘积，并对该乘积进行取整，将得到的结果确定为物理信道对应的重复传输次数。
方式二：
处理器301获取映射关系中特定信息对应的重复传输次数；
将获取的该重复传输次数确定为物理信道对应的重复传输次数。
具体地，处理器301指示收发机303接收基站发送的下行控制信令，通过基站发送的下行控制信令获取调度信息；
或者，
指示收发机303接收基站发送的高层信令，通过基站发送的高层信令获取调度信息。
其中，在图3中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器301代表的一个或多个处理器和存储器302代表的存储器的各种电路链接在一起。总线架构还
可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机303可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器301负责管理总线架构和通常的处理，存储器302可以存储处理器301在执行操作时所使用的数据。
基于上述技术方案，本发明实施例中，UE根据调度信息确定指示传输物理信道所使用的编码速率的特定信息，特定信息不同时，传输所述物理信道所使用的编码速率不同，根据特定信息与重复传输次数之间的映射关系以及确定的该特定信息，确定物理信道对应的重复传输次数，从而能够根据确定的该重复传输次数发送或接收所述物理信道，为MTC UE确定物理信道重复传输的次数以进行数据传输提供了解决方案。
并且，使用编码速率隐式通知物理信道的重复传输次数，避免增加额外的控制信息，可以节约系统开销。
另外，根据不同编码速率灵活调整对应物理信道的重复传输次数可以避免不必要的传输，提高系统效率并降低终端功耗。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个
方框或多个方框中指定的功能的步骤。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实施例的精神和范围。这样，倘若本发明实施例的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。
Claims (22)
- 一种调度方法，其特征在于，包括：终端UE获取调度信息，所述调度信息用于调度物理信道传输；所述UE根据所述调度信息确定特定信息，其中，所述特定信息不同时，传输所述物理信道所使用的编码速率不同；所述UE根据特定信息与重复传输次数之间的映射关系以及确定的所述特定信息，确定所述物理信道对应的重复传输次数；所述UE根据确定的所述重复传输次数发送或接收所述物理信道。
- 如权利要求1所述的方法，其特征在于，所述特定信息至少包括以下任意一种：调制编码方式MCS等级信息；传输块大小TBS等级信息；编码速率等级信息。
- 如权利要求1或2所述的方法，其特征在于，所述物理信道为物理下行共享信道PDSCH或物理上行共享信道PUSCH。
- 如权利要求1或2所述的方法，其特征在于，所述映射关系由基站配置给所述UE；或者，所述映射关系由基站与所述UE预先约定；或者，所述映射关系为根据基站的通知，从所述基站与所述UE预先约定的多组所述映射关系中选择的一组。
- 如权利要求1或2所述的方法，其特征在于，确定所述物理信道对应的重复传输次数之前，所述方法还包括：所述UE接收基站配置的预设参数；确定所述物理信道对应的重复传输次数，包括：所述UE获取所述映射关系中所述特定信息对应的重复传输次数；所述UE计算获取的所述重复传输次数与所述预设参数的乘积，并对乘积进行取整，将得到的结果确定为所述物理信道对应的重复传输次数。
- 如权利要求1或2所述的方法，其特征在于，确定所述物理信道对应的重复传输次数，包括：所述UE获取所述映射关系中所述特定信息对应的重复传输次数；所述UE将获取的所述重复传输次数确定为所述物理信道对应的重复传输次数。
- 如权利要求1或2所述的方法，其特征在于，终端UE获取调度信息，包括：所述UE通过基站发送的下行控制信令获取所述调度信息；或者，所述UE通过基站发送的高层信令获取所述调度信息。
- 一种终端，其特征在于，包括：获取模块，用于获取调度信息，所述调度信息用于调度物理信道传输；第一确定模块，用于根据所述调度信息确定特定信息，其中，所述特定信息不同时，传输所述物理信道所使用的编码速率不同；第二确定模块，用于根据特定信息与重复传输次数之间的映射关系以及确定的所述特定信息，确定所述物理信道对应的重复传输次数；传输模块，用于根据确定的所述重复传输次数发送或接收所述物理信道。
- 如权利要求8所述的终端，其特征在于，所述特定信息至少包括以下任意一种：调制编码方式MCS等级信息；传输块大小TBS等级信息；编码速率等级信息。
- 如权利要求8或9所述的终端，其特征在于，所述物理信道为物理下行共享信道PDSCH或物理上行共享信道PUSCH。
- 如权利要求8或9所述的终端，其特征在于，所述映射关系由基站配置给所述UE；或者，所述映射关系由基站与所述UE预先约定；或者，所述映射关系为根据基站的通知，从所述基站与所述UE预先约定的多组所述映射关系中选择的一组。
- 如权利要求8或9所述的终端，其特征在于，所述获取模块还用于：在所述第二确定模块确定所述物理信道对应的重复传输次数之前，接收基站配置的预设参数；所述第二确定模块具体用于：获取所述映射关系中所述特定信息对应的重复传输次数；计算获取的所述重复传输次数与所述预设参数的乘积，并对乘积进行取整，将得到的结果确定为所述物理信道对应的重复传输次数。
- 如权利要求8或9所述的终端，其特征在于，所述第二确定模块具体用于：获取所述映射关系中所述特定信息对应的重复传输次数；将获取的所述重复传输次数确定为所述物理信道对应的重复传输次数。
- 如权利要求8或9所述的终端，其特征在于，所述获取模块具体用于：通过基站发送的下行控制信令获取所述调度信息；或者，通过基站发送的高层信令获取所述调度信息。
- 一种终端，其特征在于，包括处理器、存储器和收发机，其中，存储器中保存有预设的程序，处理器用于确定存储器中预设的程序，按照该程序执行以下过程：通过收发机获取调度信息，该调度信息用于调度物理信道传输；根据该调度信息确定特定信息，其中，该特定信息不同时，传输物理信道所使用的编码速率不同；根据特定信息与重复传输次数之间的映射关系以及确定的该特定信息，确定物理信道对应的重复传输次数；根据确定的重复传输次数发送或接收该物理信道。
- 如权利要求15所述的终端，其特征在于，所述特定信息用于指示传输物理信道所使用的编码速率，其中，所述特定信息至少包括以下任意一种：调制编码方式MCS等级信息；传输块大小TBS等级信息；编码速率等级信息。
- 如权利要求16所述的终端，其特征在于，调度信息中携带MCS等级信息，所述处理器从调度信息中获取该MCS等级信息；或者，使用固定数量的PRB传输物理信道，调度信息中携带TBS等级信息，所述处理器从调度信息中获取该TBS等级信息；或者，调度信息中携带编码速率等级信息，所述处理器从调度信息中获取编码速率等级信息。
- 如权利要求15、16或17所述的终端，其特征在于，所述物理信道为PDSCH或PUSCH。
- 如权利要求15、16或17所述的终端，其特征在于，所述映射关系由基站配置给所述终端；或者，所述映射关系由基站与所述终端预先约定；或者，所述映射关系为根据基站的通知，从所述基站与所述终端预先约定的多组所述映射关系中选择的一组。
- 如权利要求15、16或17所述的终端，其特征在于，所述处理器还用于：在确定物理信道对应的重复传输次数之前，通过收发机接收基站配置的预设参数；获取映射关系中特定信息对应的重复传输次数，计算获取的重复传输次数与预设参数的乘积，并对该乘积进行取整，将得到的结果确定为物理信道对应的重复传输次数。
- 如权利要求15、16或17所述的终端，其特征在于，所述处理器还用于：获取映射关系中特定信息对应的重复传输次数；将获取的该重复传输次数确定为物理信道对应的重复传输次数。
- 如权利要求15、16或17所述的终端，其特征在于，所述处理器还用于：收发机接收基站发送的下行控制信令，通过基站发送的下行控制信令获取调度信息；或者，指示收发机接收基站发送的高层信令，通过基站发送的高层信令获取调度信息。
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