技术领域technical field
本发明是有关于用于在通讯系统中进行数据中继传输的系统及方法。The present invention relates to a system and method for data relay transmission in a communication system.
背景技术Background technique
在无线通讯中，基站(base station)可直接地或经由中继站(relay station)传送数据至使用者设备(user equipment)。基站可具有带细胞标识(cellidentification)的单元，且在此单元中，使用者设备可自基站接收数据。在某些情况下，中继站不具有单独的细胞标识并因而不能创建单元，然而中继站可将自基站接收的数据中继至使用者设备。另外，此方法在中继节点(RelayNode，RN)具有细胞标识时仍可适用，但跟中继节点有无细胞标识并无绝对关系。In wireless communication, a base station can transmit data to user equipment directly or via a relay station. The base station may have a unit with cell identification, and in this unit, the UE may receive data from the base station. In some cases, the relay station does not have an individual cell identity and thus cannot create a cell, however the relay station can relay data received from the base station to the user equipment. In addition, this method is still applicable when the relay node (RelayNode, RN) has a cell identifier, but it has no absolute relationship with whether the relay node has a cell identifier.
传统上，基站可在不同的通讯信道(communication channel)上传送数据与控制信息至使用者设备，此控制信息指示用于供使用者设备接收此数据的资源(例如时间或频率资源)分配。举例而言，根据长期演进(Long TermEvolution，LTE)标准，基站(在LTE标准中亦称为增强的节点B(EnhancedNode B，eNB))可将控制信息在物理下行链路控制通道(Physical DownlinkControl Channel，PDCCH)上传送至使用者设备，并将数据在物理下行链路共享通道(Physical Downlink Shared Channel，PDSCH)上传送至使用者设备。根据在PDCCH上接收的控制信息，使用者设备可确定用于在PDSCH上接收数据的所分配资源。Traditionally, the base station can transmit data and control information to the UE on different communication channels, and the control information indicates the allocation of resources (such as time or frequency resources) for the UE to receive the data. For example, according to the Long Term Evolution (LTE) standard, a base station (also referred to as an enhanced Node B (EnhancedNode B, eNB) in the LTE standard) can transmit control information in a Physical Downlink Control Channel (Physical Downlink Control Channel) , PDCCH) to the user equipment, and transmit the data to the user equipment on a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH). According to the control information received on the PDCCH, the UE can determine the allocated resources for receiving data on the PDSCH.
中继站可通过将自基站接收的数据中继至使用者设备，帮助基站传送数据至使用者设备。基站可将欲中继的数据及控制信息在不同的通讯信道上传送至中继站，此控制信息指示用于供中继站接收欲中继的数据的资源分配。举例而言，根据LTE标准，基站可将控制信息在PDCCH上传送至中继站(在LTE标准中亦称为中继节点(Relay Node，RN))，并将欲中继的数据在PDSCH上传送至中继站。根据在PDCCH上接收的控制信息，中继站可确定用于在PDSCH上接收数据的所分配资源。The relay station can help the base station transmit data to the user equipment by relaying the data received from the base station to the user equipment. The base station can transmit the data to be relayed and the control information to the relay station on different communication channels, and the control information indicates resource allocation for the relay station to receive the data to be relayed. For example, according to the LTE standard, the base station can transmit the control information to the relay station (also called relay node (Relay Node, RN) in the LTE standard) on the PDCCH, and transmit the data to be relayed to the relay station on the PDSCH. checkpoint. From the control information received on the PDCCH, the relay station can determine the allocated resources for receiving data on the PDSCH.
图1是根据LTE标准所绘示的一种使基站传送控制信息至中继站或使用者设备的传统方法100。参见图1，基站对多条下行链路控制信息(DownlinkControl Information，在本文中称为DCI 102)的每一者附加循环冗余校验(Cyclic Redundancy Check，CRC)奇偶校验位(parity bits)。根据LTE标准，DCI 102各自可具有预定格式。然后，基站可将DCI分别预编码至多个控制信道元件(Control Channel Element，CCE)104中。在经过物理处理(例如信道编码)后，可根据例如正交频分复用(Orthogonal Frequency-DivisionMultiplexing，OFDM)技术，将CCE映射至PDCCH上并在子帧(subframe)106中传送。FIG. 1 illustrates a conventional method 100 for a base station to transmit control information to a relay station or user equipment according to the LTE standard. Referring to FIG. 1, the base station adds cyclic redundancy check (Cyclic Redundancy Check, CRC) parity bits to each of multiple pieces of downlink control information (Downlink Control Information, referred to as DCI 102 herein). . According to the LTE standard, the DCIs 102 may each have a predetermined format. Then, the base station can precode the DCI into multiple control channel elements (Control Channel Element, CCE) 104 respectively. After physical processing (such as channel coding), the CCE can be mapped to the PDCCH and transmitted in a subframe (subframe) 106 according to, for example, Orthogonal Frequency-Division Multiplexing (OFDM) technology.
OFDM技术利用多个紧密相间的正交副载波(subcarrier)来载送数据。举例而言，数据可被分配于多个平行的数据信道(data channel)上，各数据信道分别对应其中之一副载波。可通过现有的调变方案(例如正交调幅(quadrature amplitude modulation))而以一相对低的符号率(symbol rate)来调变每一副载波。另外，根据OFDM技术，可在OFDM通讯系统的传送端对用来表示数据的OFDM符号执行快速傅立叶反转换(Inverse Fast FourierTransform，IFFT)，并可在OFDM通讯系统的接收端执行快速傅立叶变换(FastFourier Transform，FFT)以恢复此等OFDM符号。OFDM technology utilizes a plurality of closely spaced orthogonal subcarriers (subcarriers) to carry data. For example, data can be distributed on a plurality of parallel data channels, and each data channel corresponds to one of the subcarriers. Each subcarrier can be modulated at a relatively low symbol rate by existing modulation schemes such as quadrature amplitude modulation. In addition, according to OFDM technology, inverse Fast Fourier Transform (IFFT) can be performed on OFDM symbols used to represent data at the transmitting end of the OFDM communication system, and Fast Fourier Transform (Fast Fourier Transform) can be performed at the receiving end of the OFDM communication system. Transform, FFT) to restore these OFDM symbols.
仍参见图1，子帧106可包含N1个OFDM符号及N2个副载波，此N1个OFDM符号对应于一个下行链路时隙(downlink slot)。子帧106亦可包含资源区块，此等资源区块分别对应于N1个OFDM符号及N3个副载波。资源区块中的每一资源元素(k，l)均对应于用于传送数据的时间及频率资源。Still referring to FIG. 1 , the subframe 106 may include N1 OFDM symbols and N2 subcarriers, and the N1 OFDM symbols correspond to one downlink slot. The subframe 106 may also include resource blocks corresponding to N1 OFDM symbols and N3 subcarriers, respectively. Each resource element (k, l) in a resource block corresponds to a time and frequency resource for transmitting data.
图2是根据LTE标准绘示的一种传统盲译码方法200，盲译码方法200用于使中继站或使用者设备(在本文中称为接收机)自基站接收控制信息。参见图2，接收机在PDCCH上接收呈CCE 202形式的控制信息。由于CCE 202与欲恢复的DCI之间对应关系的不确定性，接收机可尝试候选DCI(例如候选DCI 204)的不同长度，例如length1、Length2、…等。接收机还对候选DCI204的CRC奇偶校验位进行解扰(descramble)。若解扰后的CRC奇偶校验位206通过CRC校验，则候选DCI 204是正确得到恢复的DCI 208。反之，接收机则可继续尝试候选DCI的不同长度来进行CRC校验。FIG. 2 illustrates a traditional blind decoding method 200 according to the LTE standard. The blind decoding method 200 is used to enable a relay station or user equipment (referred to as a receiver herein) to receive control information from a base station. Referring to Figure 2, the receiver receives control information in the form of CCE 202 on the PDCCH. Due to the uncertainty of the correspondence between the CCE 202 and the DCI to be recovered, the receiver may try different lengths of the candidate DCI (eg, the candidate DCI 204), such as length1, Length2, . . . The receiver also descrambles the CRC parity bits of the candidate DCI 204 . If the descrambled CRC parity bit 206 passes the CRC check, the candidate DCI 204 is the correctly recovered DCI 208. On the contrary, the receiver can continue to try different lengths of the candidate DCI for CRC check.
发明内容Contents of the invention
本发明的一实施范例提供一种用于使一基站传送数据的方法，上述数据欲由一中继站中继至一使用者设备，上述方法包括：根据中继站的一标识或使用者设备的标识，对控制信息进行编码，上述控制信息指示对中继站的资源分配；以及传送控制信息至中继站。An example embodiment of the present invention provides a method for enabling a base station to transmit data. The data is to be relayed by a relay station to a user equipment. The method includes: according to an identifier of the relay station or an identifier of the user equipment, to encoding control information indicating resource allocation to the relay station; and transmitting the control information to the relay station.
所述的方法，其中，该基站在一物理下行链路控制信道上传送该控制信息至该中继站，该方法还包括：The method, wherein the base station transmits the control information to the relay station on a physical downlink control channel, the method further includes:
在一物理下行链路共享信道上传送该数据至该中继站。The data is transmitted to the relay station on a physical downlink shared channel.
所述的方法，其中，还包括：The method, which also includes:
根据该使用者设备的该标识，对控制信息进行编码，该控制信息是指示对该使用者设备的资源分配；以及encoding control information according to the identifier of the UE, the control information indicating resource allocation to the UE; and
传送指示对该使用者设备的该资源分配的该控制信息至该使用者设备。Sending the control information indicating the resource allocation to the UE to the UE.
所述的方法，其中，该编码步骤还包括：The method, wherein the coding step also includes:
根据该中继站的一无线网络临时辨识符或该使用者设备的一无线网络临时辨识符，对该控制信息进行编码。The control information is encoded according to a wireless network temporary identifier of the relay station or a wireless network temporary identifier of the user equipment.
本发明的一实施范例提供一种用于使一基站传送控制信息至一中继站以中继数据至一使用者设备的方法，此方法包括：传送一特定指示信息至中继站，其中信息包含控制信息及一参数，上述控制信息指示对中继站的资源分配，上述参数则指示控制信息是供中继站使用。An example embodiment of the present invention provides a method for enabling a base station to transmit control information to a relay station for relaying data to a user equipment. The method includes: transmitting a specific indication message to the relay station, wherein the information includes control information and A parameter, the above-mentioned control information indicates resource allocation to the relay station, and the above-mentioned parameter indicates that the control information is used by the relay station.
所述的方法，其中，还包括：The method, which also includes:
包含该使用者设备的一标识于该信息中。An identification of the UE is included in the message.
本发明的一实施范例提供一种用于使一基站传送控制信息至一使用者设备及一中继站以中继数据至使用者设备的方法，此方法包括：根据一第一数目的控制信道元件(Control Channel Element，CCE)，对指示对中继站的资源分配的控制信息进行编码；以及根据不同于第一数目的一第二数目的CCE，对指示对使用者设备的资源分配的控制信息进行编码。An exemplary embodiment of the present invention provides a method for enabling a base station to transmit control information to a user equipment and a relay station to relay data to the user equipment, the method comprising: according to a first number of control channel elements ( Control Channel Element, CCE), encoding the control information indicating resource allocation to the relay station; and encoding the control information indicating resource allocation to the user equipment according to a second number of CCEs different from the first number.
本发明的一实施范例提供一种使一基站传送控制信息至一使用者设备及一中继站以中继数据至使用者设备的方法，此方法包括：以中继站的一标识，对指示对中继站的资源分配的控制信息的一第一多个循环冗余校验(CyclicRedundancy Check，CRC)奇偶校验位进行加扰；以及以使用者设备的一标识，对指示对使用者设备的资源分配的控制信息的一第二多个CRC奇偶校验位进行加扰。An embodiment of the present invention provides a method for enabling a base station to transmit control information to a user equipment and a relay station to relay data to the user equipment. The method includes: using an identifier of the relay station to indicate resources for the relay station Scrambling a first plurality of cyclic redundancy check (CyclicRedundancy Check, CRC) parity bits of the allocated control information; A second plurality of CRC parity bits are scrambled.
所述的方法，其中，还包括：以该使用者设备的该标识，对该第一多个循环冗余校验奇偶校验位进行加扰。The method further includes: using the identifier of the UE to scramble the first plurality of cyclic redundancy check parity bits.
本发明的一实施范例提供一种用于使一中继站自一基站接收数据并中继上述数据至一使用者设备的方法，此方法包括：自基站接收控制信息，此控制信息是指示对中继站的资源分配并根据中继站的一标识或使用者设备的一标识进行编码；以及将控制信息译码，以确定分配给中继站的资源。An exemplary embodiment of the present invention provides a method for enabling a relay station to receive data from a base station and relay the data to a user equipment. The method includes: receiving control information from the base station, the control information indicating instructions for the relay station Resource allocation is encoded according to an ID of the relay station or an ID of the UE; and decoding the control information to determine the resource allocated to the relay station.
所述的方法，其中，还包括：The method, which also includes:
在所述所确定资源上接收该数据。The data is received on the determined resource.
所述的方法，其中，还包括：The method, which also includes:
通过来自该基站的专用信号，或通过监听在该基站与该使用者设备之间交换的信息，获得该使用者设备的该标识。The identity of the user equipment is obtained by a dedicated signal from the base station, or by listening to information exchanged between the base station and the user equipment.
所述的方法，其中，该中继站在一物理下行链路控制信道上接收该控制信息，该方法还包括：The method, wherein the relay station receives the control information on a physical downlink control channel, the method further includes:
在一物理下行链路共享信道上自该基站接收该数据。The data is received from the base station on a physical downlink shared channel.
本发明的一实施范例提供一种用于使一中继站自一基站接收控制信息以中继数据至一使用者设备的方法，此方法包括：自基站接收一特定指示信息，其中上述信息包含控制信息及一参数，上述控制信息指示对中继站的资源分配，上述参数则指示控制信息是供中继站使用。An example embodiment of the present invention provides a method for enabling a relay station to receive control information from a base station to relay data to a user equipment, the method comprising: receiving specific indication information from the base station, wherein the information includes control information and a parameter, the above control information indicates resource allocation to the relay station, and the above parameter indicates that the control information is used by the relay station.
所述的方法，其中，还包括：The method, which also includes:
接收包含于该信息中的该使用者设备的一标识。An identification of the user equipment included in the message is received.
本发明的一实施范例提供一种用于使一中继站自一基站接收控制信息的方法，其中基站根据一第一数目的控制信道元件(CCE)来传送控制信息，此控制信息指示对一使用者设备的资源分配，上述方法包括：自基站接收控制信息，此控制信息指示对中继站的资源分配；以及根据不同于第一数目的一第二数目的CCE，将所接收控制信息译码。An exemplary embodiment of the present invention provides a method for enabling a relay station to receive control information from a base station, wherein the base station transmits control information according to a first number of control channel elements (CCEs), the control information indicates a user Resource allocation of equipment, the method includes: receiving control information from the base station, the control information indicates resource allocation to the relay station; and decoding the received control information according to a second number of CCEs different from the first number.
本发明的一实施范例提供一种用于使一中继站自一基站接收控制信息的方法，其中基站以一使用者设备的一标识对控制信息的一第一多个循环冗余校验(CRC)奇偶校验位进行加扰，上述控制信息指示对使用者设备的资源分配，上述方法包括：自基站接收指示对中继站的资源分配的控制信息；以及以中继站的一标识，对所接收控制信息的一第二多个CRC奇偶校验位进行解扰。An exemplary embodiment of the present invention provides a method for enabling a relay station to receive control information from a base station, wherein the base station performs a first plurality of cyclic redundancy checks (CRC) on the control information with an identification of a user equipment The parity bit is scrambled, and the above control information indicates resource allocation to the user equipment. The above method includes: receiving control information from the base station indicating resource allocation to the relay station; A second plurality of CRC parity bits is descrambled.
所述的方法，其中，还包括：The method, which also includes:
以该使用者设备的该标识，对该第二多个循环冗余校验奇偶校验位进行解扰。Descrambling is performed on the second plurality of CRC parity bits with the identification of the UE.
本发明的一实施范例提供一种用于传送数据的基站，上述数据欲由一中继站中继至一使用者设备，上述基站包括：一处理器，用以根据中继站的一标识或使用者设备的一标识，对控制信息进行编码，上述控制信息指示对中继站的资源分配；以及一天线，用以传送控制信息至中继站。An embodiment of the present invention provides a base station for transmitting data. The data is to be relayed to a user equipment by a relay station. The base station includes: a processor, configured to An identifier, encoding the control information, the above-mentioned control information indicates resource allocation to the relay station; and an antenna, used to transmit the control information to the relay station.
本发明的一实施范例提供一种用于自一基站接收数据并将上述数据中继至一使用者设备的中继站，此中继站包括：一天线，用以自基站接收控制信息，此控制信息是指示对中继站的资源分配并根据中继站的一标识或使用者设备的一标识进行编码；以及一处理器，用以将控制信息译码，以确定分配给中继站的资源。An embodiment of the present invention provides a relay station for receiving data from a base station and relaying the data to a user equipment. The relay station includes: an antenna for receiving control information from the base station. The control information is an instruction The resource allocation of the relay station is encoded according to an identifier of the relay station or an identifier of the user equipment; and a processor is used for decoding the control information to determine the resources allocated to the relay station.
与现有技术相比，本发明的有益技术效果在于：Compared with the prior art, the beneficial technical effect of the present invention is:
本发明可精确传送控制信息以及数据给中继站，进而完成中继传输，解决了中继站无法取得预备传送给使用者设备的控制以及数据信息。The invention can accurately transmit control information and data to the relay station, and then complete the relay transmission, which solves the problem that the relay station cannot obtain the control and data information to be transmitted to the user equipment.
应理解，前述大致说明与下文详细的说明皆仅为例示性及解释性说明，而非用于限制本发明。It should be understood that both the foregoing general description and the following detailed description are illustrative and explanatory only, rather than limiting the present invention.
为让本发明的上述和其它目的、特征和优点能更明显易懂，下文特举较佳实施例，并配合所附图式，作详细说明如下。In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments will be described in detail below together with the accompanying drawings.
附图说明Description of drawings
图1是根据LTE标准所绘示的一种用于使基站传送控制信息至中继站或使用者设备的传统方法；FIG. 1 is a traditional method for enabling a base station to transmit control information to a relay station or user equipment according to the LTE standard;
图2是根据LTE标准所绘示的一种用于使中继站或使用者设备自基站接收控制信息的传统方法；FIG. 2 is a conventional method for enabling a relay station or user equipment to receive control information from a base station according to the LTE standard;
图3是根据一范例实施例所绘示的用于数据中继传输的通讯系统的方块图。FIG. 3 is a block diagram of a communication system for data relay transmission according to an exemplary embodiment.
图4是根据一范例实施例所绘示的一种用于使基站传送数据至中继站的方法的流程图；FIG. 4 is a flow chart of a method for enabling a base station to transmit data to a relay station according to an exemplary embodiment;
图5是根据一范例实施例所绘示的用于使中继站将自基站接收的数据中继至使用者设备的中继传输过程；FIG. 5 is a relay transmission process for enabling a relay station to relay data received from a base station to a user equipment according to an exemplary embodiment;
图6是根据一范例实施例所绘示的用于使中继站将自基站接收的数据中继至使用者设备的中继传输过程；FIG. 6 is a relay transmission process for enabling a relay station to relay data received from a base station to a user equipment according to an exemplary embodiment;
图7是根据一范例实施例所绘示的用于使中继站将自基站接收的数据中继至使用者设备的中继传输过程；FIG. 7 is a relay transmission process for enabling a relay station to relay data received from a base station to a UE according to an exemplary embodiment;
图8是根据一范例实施例所绘示的用于使中继站将自基站接收的数据中继至使用者设备的中继传输过程；FIG. 8 is a relay transmission process for enabling a relay station to relay data received from a base station to a UE according to an exemplary embodiment;
图9是根据一范例实施例所绘示的用于使中继站将自基站接收的数据中继至使用者设备的中继传输过程；FIG. 9 is a relay transmission process for enabling a relay station to relay data received from a base station to a UE according to an exemplary embodiment;
图10是根据一范例实施例所绘示的用于使基站传送控制信息至中继站的特定指示信息；FIG. 10 is specific instruction information for enabling the base station to transmit control information to the relay station according to an exemplary embodiment;
图11是根据一范例实施例所绘示的一种用于使基站传送控制信息至中继站及使用者设备的编码方法；Fig. 11 illustrates a coding method for enabling the base station to transmit control information to the relay station and the user equipment according to an exemplary embodiment;
图12是根据一范例实施例所绘示的用于使基站传送控制信息至中继站及使用者设备的过程；FIG. 12 illustrates a process for enabling the base station to transmit control information to the relay station and the UE according to an exemplary embodiment;
图13是根据一范例实施例所绘示的一种用于使基站传送控制信息至中继站及使用者设备的编码方法；Fig. 13 illustrates a coding method for enabling the base station to transmit control information to the relay station and the user equipment according to an exemplary embodiment;
图14是根据一范例实施例所绘示的用于使基站传送控制信息至中继站及使用者设备的过程；FIG. 14 illustrates a process for enabling the base station to transmit control information to the relay station and the UE according to an exemplary embodiment;
图15是根据一范例实施例所绘示的基站的方块图；Fig. 15 is a block diagram of a base station according to an exemplary embodiment;
图16是根据一范例实施例所绘示的中继站的方块图；FIG. 16 is a block diagram of a relay station according to an exemplary embodiment;
图17是根据一范例实施例所绘示的使用者设备的方块图。Fig. 17 is a block diagram of a user equipment according to an exemplary embodiment.
其中，附图标记：Among them, reference signs:
100：使基站传送控制信息至中继站或使用者设备的传统方法100: Conventional method for base station to transmit control information to relay station or user equipment
102、204、208、1402、1404、DCI：下行链路控制信息102, 204, 208, 1402, 1404, DCI: Downlink Control Information
104、202、1204、1206、1406、1408：控制信道元件104, 202, 1204, 1206, 1406, 1408: control channel elements
106：子帧106: subframe
200：盲解码方法200: Blind decoding method
206：循环冗余校验奇偶校验位206: Cyclic redundancy check parity bit
300：通讯系统300: Communication system
302、502、602、702、802、902、1500：基站302, 502, 602, 702, 802, 902, 1500: base station
304、504、604、704、804、904、1600：中继站304, 504, 604, 704, 804, 904, 1600: Relay station
306、506、606、704、806、906、：使用者设备306, 506, 606, 704, 806, 906,: user equipment
308：单元308: Units
310：通讯装置310: Communication device
400：用于使基站传送数据至中继站的方法400: Method for enabling a base station to transmit data to a relay station
402～406：本发明的一实施例所述的用于使基站传送数据至中继站的方法的各步骤402-406: each step of the method for enabling the base station to transmit data to the relay station according to an embodiment of the present invention
500、600、700、800、900：中继传输过程500, 600, 700, 800, 900: relay transmission process
510、512、514、520、522、610、612、614、710、712、810、812、920、922：子帧格式510, 512, 514, 520, 522, 610, 612, 614, 710, 712, 810, 812, 920, 922: subframe format
1000：中继站特定指示信息1000: Relay station specific instructions
1100、1300：用于使基站传送控制信息至中继站及使用者设备的编码方法1100, 1300: Encoding methods for enabling the base station to transmit control information to the relay station and user equipment
1200：用于使基站根据方法1100传送控制信息至中继站及使用者设备的过程1200: A process for enabling the base station to transmit control information to the relay station and the user equipment according to the method 1100
1202：控制信息1202: Control information
1302～1316：本发明的一实施例所述的用于使基站传送控制信息至中继站及使用者设备的编码方法的各步骤1302-1316: each step of the encoding method for enabling the base station to transmit control information to the relay station and the user equipment according to an embodiment of the present invention
1400：用于使基站传送控制信息至中继站及使用者设备的过程1400: A process for enabling the base station to transmit control information to the relay station and the UE
1502、1602、1702：处理器1502, 1602, 1702: Processor
1504、1604、1704：随机存取内存1504, 1604, 1704: random access memory
1506、1606、1706：只读存储器1506, 1606, 1706: ROM
1508、1608、1708：储存器1508, 1608, 1708: Storage
1510、1610、1710：数据库1510, 1610, 1710: database
1512、1612、1712：I/O装置1512, 1612, 1712: I/O devices
1514、1614、1714：界面1514, 1614, 1714: interface
1516、1616、1716：天线1516, 1616, 1716: Antenna
PDCCH：物理下行链路控制通道PDCCH: Physical Downlink Control Channel
PDSCH：物理下行链路共享通道PDSCH: Physical Downlink Shared Channel
CRC：循环冗余校验CRC: Cyclic Redundancy Check
具体实施方式Detailed ways
以下将以范例实施例佐以对应图示进行详细的说明。在以下参照的附图中，除了特别说明之处，基本上不同图式中相同的标号皆表示相同或相似的元件。在以下对本发明范例实施例的说明中所提及的实施方案并不代表根据本发明的所有实施方案。相反，此等实施方案只是根据如随附申请专利范围所述发明的相关态样的系统及方法的范例。The following will describe in detail with exemplary embodiments accompanied by corresponding figures. In the drawings referred to below, basically the same reference numerals in different drawings represent the same or similar elements unless otherwise specified. The embodiments mentioned in the following description of exemplary embodiments of the invention do not represent all embodiments according to the invention. Rather, these implementations are merely exemplary of systems and methods in accordance with aspects of the invention as described in the appended claims.
图3是根据一范例实施例所绘示的用于数据中继传输的通讯系统300的方块图。通讯系统300可用以根据例如正交频分复用(OrthogonalFrequency-Division Multiplexing，OFDM)技术、码分多址(Code DivisionMultiple Access，CDMA)技术、多载波技术、多重输入多重输出(Multiple-Inputand Multiple-Output，MIMO)技术等来运作。FIG. 3 is a block diagram of a communication system 300 for data relay transmission according to an exemplary embodiment. The communication system 300 can be used based on, for example, Orthogonal Frequency-Division Multiplexing (OFDM) technology, Code Division Multiple Access (Code Division Multiple Access, CDMA) technology, multi-carrier technology, Multiple-Input and Multiple-Output (Multiple-Input and Multiple- Output, MIMO) technology to operate.
在范例实施例中，通讯系统300可用以根据诸如IEEE 802.16标准家族、第三代伙伴工程(the 3rd Generation Partnership Project，3GPP)标准、高速封包存取(High-Speed Packet Access，HSPA)标准、长期演进(Long TermEvolution，LTE)标准、国际行动通讯(International MobileTelecommunications-2000，IMT-2000)标准、IMT-高级标准、IMT标准家族等不同的通讯标准来运作。仅出于例示目的，假定通讯系统300是用以根据LTE标准并基于OFDM技术来运作。In an exemplary embodiment, the communication system 300 can be used according to standards such as the IEEE 802.16 family of standards, the3rd Generation Partnership Project (the 3rd Generation Partnership Project, 3GPP) standard, the High-Speed Packet Access (High-Speed Packet Access, HSPA) standard, Different communication standards such as the Long Term Evolution (LTE) standard, the International Mobile Telecommunications-2000 (IMT-2000) standard, the IMT-Advanced standard, and the IMT family of standards operate. For illustrative purposes only, it is assumed that the communication system 300 operates according to the LTE standard and based on OFDM technology.
在范例实施例中，通讯系统300可包括至少一个基站(base station，BS)302(亦称为增强的节点B(Enhanced Node B，eNB))、至少一个中继站(RelayStation，RS)304(亦称为中继节点(Relay Node，RN))及至少一个使用者设备(User Equipment，UE))306。RS 304与UE 306处于BS 302的单元308(即覆盖区)中。In an exemplary embodiment, the communication system 300 may include at least one base station (base station, BS) 302 (also called enhanced node B (Enhanced Node B, eNB)), at least one relay station (RelayStation, RS) 304 (also called It is a relay node (Relay Node, RN)) and at least one user equipment (User Equipment, UE)) 306. RS 304 and UE 306 are in cell 308 (ie, coverage area) of BS 302.
在范例实施例中，通讯系统300可还包括通讯装置310，此通讯装置310连接至BS 302。通讯装置310可包括移动性管理实体(Mobility ManagementEntity，MME)及/或伺服网关器(Serving Gateway，S-GW)，以用于管理及控制通讯系统300中的通讯。如此一来，UE 306便可与BS 302及通讯装置310进行通讯，以接收例如LTE服务。In an exemplary embodiment, the communication system 300 may further include a communication device 310 connected to the BS 302. The communication device 310 may include a Mobility Management Entity (MME) and/or a Serving Gateway (S-GW) for managing and controlling communication in the communication system 300 . In this way, UE 306 can communicate with BS 302 and communication device 310 to receive LTE services, for example.
在范例实施例中，BS 302可直接地或经由RS 304传送数据至UE 306或自UE 306接收数据。举例而言，BS 302可传送数据至RS 304，然后RS 304可将数据中继至UE 306。再举例而言，UE 306可直接自BS 302接收数据，或者经由RS 304自BS 302接收数据，抑或同时自BS 302与RS 304接收数据。In an example embodiment, the BS 302 may transmit data to or receive data from the UE 306 directly or via the RS 304. For example, BS 302 can transmit data to RS 304, which can then relay the data to UE 306. For another example, the UE 306 can receive data directly from the BS 302, or receive data from the BS 302 via the RS 304, or receive data from both the BS 302 and the RS 304.
在范例实施例中，BS 302可将数据与控制信息在不同的通讯信道上传送至UE 306，此控制信息指示用于供UE 306接收数据的资源(例如时间或频率资源)分配。举例而言，BS 302可将控制信息在物理下行链路控制通道(PDCCH)上传送至UE 306，并将数据在物理下行链路共享通道(PDSCH)上传送至UE 306。根据在PDCCH上接收的控制信息，UE 306可确定用以在PDSCH上接收数据的所分配资源。In an exemplary embodiment, the BS 302 may transmit data and control information to the UE 306 on separate communication channels, the control information indicating allocation of resources (eg, time or frequency resources) for the UE 306 to receive data. For example, BS 302 can transmit control information to UE 306 on a physical downlink control channel (PDCCH) and transmit data to UE 306 on a physical downlink shared channel (PDSCH). From the control information received on the PDCCH, the UE 306 can determine the allocated resources to receive data on the PDSCH.
在范例实施例中，BS 302可将欲中继至UE 306的数据与控制信息在不同的通讯信道上传送至RS 304，此控制信息是指示用于供中继站304接收所欲中继的数据的资源分配。举例而言，BS 302可将控制信息在PDCCH上传送至RS 304，并将欲中继的数据在PDSCH上传送至RS 304。根据在PDCCH上接收的控制信息，RS 304可确定用于在PDSCH上接收所欲中继的数据的所分配资源。In an exemplary embodiment, the BS 302 can transmit the data and control information to be relayed to the UE 306 to the RS 304 on different communication channels, and the control information is indicated for the relay station 304 to receive the data to be relayed Resource allocation. For example, BS 302 can transmit control information to RS 304 on PDCCH, and transmit data to be relayed to RS 304 on PDSCH. Based on control information received on the PDCCH, RS 304 may determine allocated resources for receiving data to be relayed on the PDSCH.
在范例实施例中，RS 304可将数据中继至UE 306，且BS 302可传送控制信息至UE 306，此控制信息是指示供UE 306接收由RS 304所中继的数据的资源分配。举例而言，RS 304可将数据在PDSCH上中继至UE 306，且BS 302可在PDCCH上传送控制信息至UE 306。根据在PDCCH上接收的控制信息，UE 306可确定用于在PDSCH上接收数据的所分配资源。另外，BS 302亦可同时在PDSCH上传送数据至UE 306。In an example embodiment, RS 304 can relay data to UE 306, and BS 302 can transmit control information to UE 306 indicating resource allocation for UE 306 to receive the data relayed by RS 304. For example, RS 304 can relay data to UE 306 on PDSCH, and BS 302 can transmit control information to UE 306 on PDCCH. From the control information received on the PDCCH, the UE 306 can determine the allocated resources for receiving data on the PDSCH. In addition, the BS 302 can also transmit data to the UE 306 on the PDSCH at the same time.
在范例实施例中，RS 304可在BS 302的上行链路或下行链路频带中，根据时分复用(Time Division Multiplex，TDM)技术或频分复用(FrequencyDivision Multiplex，FDM)技术传送或接收无线电信号。另外，RS 304可充当基站，并在不与BS 302进行协调的情况下传送控制信息及数据至UE 306。In an exemplary embodiment, the RS 304 may transmit or receive in the uplink or downlink frequency band of the BS 302 according to Time Division Multiplex (TDM) technology or Frequency Division Multiplex (FDM) technology radio signal. Additionally, RS 304 can act as a base station and transmit control information and data to UE 306 without coordinating with BS 302.
图4是根据一范例实施例所绘示的一种用于使BS 302(图3)传送数据至RS 304的方法400的流程图。举例而言，此数据可为欲中继至UE 306(图3)的数据。参见图3及图4，RS 304通过来自BS 302的专用信号，或通过监听在BS 302与UE 306之间交换的信息，获得UE 306的标识，例如无线网络临时辨识符(Radio Network Temporary Identifier，RNTI)(402)。举例而言，此专用信号可包括媒体存取控制(Media Access Control，MAC)信号、无线电链路控制(Radio Link Control，RLC)信号、无线电资源控制(Radio ResourceControl，RRC)信号、或非存取层(Non-Access Stratum，NAS)信息。再举例而言，在BS 302与UE 306之间交换的信息可包括随机存取程序中的随机存取请求(Random Access Request，RAR)信息或任何其它包含与UE 306的标识(例如RNTI)有关的资讯的信息。如此一来，RS 304即获得UE 306的RNTI。FIG. 4 is a flowchart of a method 400 for enabling the BS 302 ( FIG. 3 ) to transmit data to the RS 304 according to an exemplary embodiment. For example, this data may be data to be relayed to UE 306 (FIG. 3). Referring to Fig. 3 and Fig. 4, RS 304 obtains the identifier of UE 306, such as a wireless network temporary identifier (Radio Network Temporary Identifier, RNTI) (402). For example, the dedicated signal may include a Media Access Control (MAC) signal, a Radio Link Control (RLC) signal, a Radio Resource Control (RRC) signal, or a non-access Layer (Non-Access Stratum, NAS) information. For another example, the information exchanged between BS 302 and UE 306 may include Random Access Request (Random Access Request, RAR) information in the random access procedure or any other information related to UE 306's identity (such as RNTI) information of information. In this way, the RS 304 obtains the RNTI of the UE 306.
BS 302在PDCCH上传送控制信息，此控制信息指示用于供RS 304接收数据的资源分配(404)。在一个范例实施例中，BS 302根据RS 304的标识(例如RNTI)对控制信息进行编码。相应地，RS 304可使用其自身的RNTI来译码此控制信息，以确定用于接收数据的所分配资源。在一个范例实施例中，BS 302根据UE 306的RNTI对控制信息进行编码。相应地，RS 304可使用所获得的UE 306的RNTI来译码此控制信息，以确定用于接收数据的所分配资源。BS 302 transmits control information on the PDCCH indicating resource allocation for RS 304 to receive data (404). In an example embodiment, the BS 302 encodes the control information according to the identity of the RS 304 (eg, RNTI). Accordingly, RS 304 can decode this control information using its own RNTI to determine the allocated resources for receiving data. In an example embodiment, the BS 302 encodes the control information according to the RNTI of the UE 306. Accordingly, RS 304 can decode this control information using the obtained RNTI of UE 306 to determine the allocated resources for receiving data.
BS 302还在PDSCH上传送数据至RS 304(406)。如此一来，RS 304便可在所确定资源上自BS 302接收数据。在某些范例实施例中，通讯系统300可包括多个UE。相应地，RS 304可区分PDSCH上对应于每一各别UE的数据。另外，RS 304可例如使用波束成形(beam forming)技术或MIMO技术，为此等UE执行高级传输。BS 302 also transmits data on PDSCH to RS 304 (406). In this way, RS 304 can receive data from BS 302 on the identified resources. In some example embodiments, the communication system 300 may include multiple UEs. Accordingly, RS 304 can distinguish the data corresponding to each respective UE on the PDSCH. Additionally, RS 304 may perform advanced transmissions for such UEs, eg, using beam forming techniques or MIMO techniques.
另外，RS 304亦可自BS 302接收控制信息，此控制信息指示供RS 304将数据中继至UE 306的资源分配。举例而言，RS 304可在PDCCH或PDSCH上接收此控制信息。再举例而言，RS 304可通过BS 302与RS 304之间的诸如实体层(physical layer，PHY)信息、MAC信息或RRC信息等专用信息来接收此控制信息。在RS 304接收到欲中继至UE 306的数据以及用于中继此数据的控制信息后，RS 304可在所分配资源上将数据中继至UE 306。In addition, RS 304 may also receive control information from BS 302 indicating resource allocation for RS 304 to relay data to UE 306. For example, RS 304 can receive this control information on PDCCH or PDSCH. For another example, the RS 304 may receive the control information through dedicated information between the BS 302 and the RS 304, such as physical layer (PHY) information, MAC information or RRC information. After the RS 304 receives the data to be relayed to the UE 306 and the control information for relaying the data, the RS 304 can relay the data to the UE 306 on the allocated resources.
图5是根据一范例实施例所绘示的用于使RS 504将自BS 502接收的数据中继至UE 506的中继传输过程500。仅出于例示目的，假定UE 506包括第一UE UE1、第二UE UE2及第三UE UE3。举例而言，BS 502、RS 504及UE1可分别为BS 302、RS 304及UE 306(图3)。FIG. 5 illustrates a relay transmission process 500 for RS 504 to relay data received from BS 502 to UE 506 according to an exemplary embodiment. For illustrative purposes only, it is assumed that UE 506 includes a first UE UE1, a second UE UE2 and a third UE UE3. For example, BS 502, RS 504, and UE1 may be BS 302, RS 304, and UE 306, respectively (FIG. 3).
在范例实施例中，BS 502使用RS 504的RNTI对控制信息进行编码，此控制信息指示供RS 504接收数据的资源分配(在本文中称为RS-CI)。BS 502还在基于子帧格式510的子帧N中，在PDCCH上传送RS-CI至RS 504，并在PDSCH上传送数据至RS 504。根据子帧格式510，PDSCH上的数据包括欲中继至UE1、UE2及UE3的数据(在本文中分别称为UE1数据、UE2数据及UE3数据)、以及控制信息，此控制信息指示供RS 504中继UE1数据、UE2数据及UE3数据的资源分配(在本文中分别称为CI-1、CI-2及CI-3)。通过接收并解码RS-CI，RS 504可接收PDSCH，并从而接收UE1数据、UE2数据、UE3数据、CI-1、CI-2及CI-3。In an example embodiment, BS 502 uses the RNTI of RS 504 to encode control information indicating the resource allocation for RS 504 to receive data (referred to herein as RS-CI). BS 502 also transmits RS-CI to RS 504 on PDCCH and transmits data to RS 504 on PDSCH in subframe N based on subframe format 510. According to the subframe format 510, the data on the PDSCH includes data to be relayed to UE1, UE2, and UE3 (referred to herein as UE1 data, UE2 data, and UE3 data) and control information, and the control information indicates that RS 504 Resource allocations for relaying UE1 data, UE2 data, and UE3 data (referred to herein as CI-1, CI-2, and CI-3, respectively). By receiving and decoding the RS-CI, the RS 504 can receive the PDSCH and thereby receive UE1 data, UE2 data, UE3 data, CI-1, CI-2 and CI-3.
在一个范例实施例中，BS 502在基于子帧格式512的子帧N中，在PDCCH上传送RS-CI至RS 504，并在PDSCH上传送数据至RS 504。根据子帧格式512，CI-1、CI-2及CI-3聚集于PDCCH或PDSCH上的第一专用资源区块中，而UE1数据、UE2数据及UE3数据则聚集于PDSCH上的第二专用资源区块中。In an exemplary embodiment, BS 502 transmits RS-CI to RS 504 on PDCCH and transmits data to RS 504 on PDSCH in subframe N based on subframe format 512. According to the subframe format 512, CI-1, CI-2 and CI-3 are aggregated in the first dedicated resource block on PDCCH or PDSCH, while UE1 data, UE2 data and UE3 data are aggregated in the second dedicated resource block on PDSCH resource block.
在一个范例实施例中，BS 502在基于子帧格式514的子帧N中，在PDCCH上传送RS-CI至RS 504，并在PDSCH上传送数据至RS 504。根据子帧格式514，PDSCH上的数据包括UE1数据、UE2数据及UE3数据，CI-1、CI-2及CI-3则在PDCCH上传送。In an exemplary embodiment, BS 502 transmits RS-CI to RS 504 on PDCCH and data to RS 504 on PDSCH in subframe N based on subframe format 514. According to the subframe format 514, the data on the PDSCH includes UE1 data, UE2 data and UE3 data, while CI-1, CI-2 and CI-3 are transmitted on the PDCCH.
在范例实施例中，在子帧N之后传送的子帧(例如子帧N+X)中，BS 502可将CI-1、CI-2及CI-3分别传送至UE1、UE2及UE3，且RS 504可在所分配资源上中继UE1数据、UE2数据及UE3数据，此等所分配资源是根据RS 504在子帧N中所接收的CI-1、CI-2及CI-3来确定。如此一来，根据在子帧N+X中所接收的CI-1、CI-2及CI-3，UE1、UE2及UE3可分别确定用于接收由RS504所中继的UE1数据、UE2数据及UE3数据的所分配资源。图5显示子帧N+X的范例子帧格式520及522。In an example embodiment, in subframes transmitted after subframe N (eg, subframe N+X), BS 502 may transmit CI-1, CI-2, and CI-3 to UE1, UE2, and UE3, respectively, and RS 504 may relay UE1 data, UE2 data, and UE3 data on allocated resources determined according to CI-1, CI-2, and CI-3 received by RS 504 in subframe N. In this way, according to CI-1, CI-2 and CI-3 received in subframe N+X, UE1, UE2 and UE3 can respectively determine to receive UE1 data, UE2 data and Allocated resources for UE3 data. FIG. 5 shows example subframe formats 520 and 522 for subframe N+X.
图6是根据一范例实施例所绘示的用于使RS 604将自BS 602接收的数据中继至UE 606的中继传输过程600。仅出于例示目的，假定UE 606包括第一UE UE1、第二UE UE2及第三UE UE3。举例而言，BS 602、RS 604及UE1可分别为BS 302、RS 304及UE 306(图3)。FIG. 6 is a relay transmission process 600 for RS 604 to relay data received from BS 602 to UE 606 according to an exemplary embodiment. For illustrative purposes only, it is assumed that UE 606 includes a first UE UE1, a second UE UE2 and a third UE UE3. For example, BS 602, RS 604, and UE1 may be BS 302, RS 304, and UE 306, respectively (FIG. 3).
在范例实施例中，BS 602使用UE1、UE2及UE3各自的RNTI对控制信息进行编码，此控制信息指示供RS 604接收与UE1、UE2及UE3相关的数据的资源分配，在本文中，此控制信息分别被称为UE1-CI、UE2-CI及UE3-CI。BS 602还在基于子帧格式610的子帧N中，在PDCCH上传送UE1-CI、UE2-CI及UE3-CI至RS 604，并在PDSCH上传送数据至RS 604。根据子帧格式610，PDSCH上的数据包括欲中继至UE1、UE2及UE3的数据(在本文中分别称为UE1数据、UE2数据及UE3数据)、以及控制信息，此控制信息指示供RS 604中继UE1数据、UE2数据及UE3数据的资源分配(在本文中分别称为CI-1、CI-2及CI-3)。通过接收并解码UE-CI、UE2-CI及UE3-CI，RS 604可接收PDSCH，并从而接收UE1数据、UE2数据、UE3数据、CI-1、CI-2及CI-3。In an exemplary embodiment, BS 602 uses the respective RNTIs of UE1, UE2, and UE3 to encode control information indicating resource allocation for RS 604 to receive data related to UE1, UE2, and UE3. The information is referred to as UE1-CI, UE2-CI and UE3-CI, respectively. BS 602 also transmits UE1-CI, UE2-CI and UE3-CI to RS 604 on PDCCH in subframe N based on subframe format 610, and transmits data to RS 604 on PDSCH. According to the subframe format 610, the data on the PDSCH includes data to be relayed to UE1, UE2, and UE3 (referred to herein as UE1 data, UE2 data, and UE3 data) and control information, and the control information indicates that RS 604 Resource allocations for relaying UE1 data, UE2 data, and UE3 data (referred to herein as CI-1, CI-2, and CI-3, respectively). By receiving and decoding UE-CI, UE2-CI, and UE3-CI, RS 604 can receive PDSCH, and thereby receive UE1 data, UE2 data, UE3 data, CI-1, CI-2, and CI-3.
在一个范例实施例中，BS 602在基于子帧格式612的子帧N中，在PDCCH上传送UE1-CI、UE2-CI及UE3-CI至RS 604，并在PDSCH上传送数据至RS604。根据子帧格式612，CI-1、CI-2及CI-3聚集于PDSCH上的专用资源区块中。In an exemplary embodiment, the BS 602 transmits UE1-CI, UE2-CI and UE3-CI to the RS 604 on the PDCCH and transmits data to the RS 604 on the PDSCH in the subframe N based on the subframe format 612. According to the subframe format 612, CI-1, CI-2 and CI-3 are aggregated in a dedicated resource block on the PDSCH.
在一个范例实施例中，BS 602在基于子帧格式614的子帧N中，在PDCCH上传送UE1-CI、UE2-CI及UE3-CI至RS 604，并在PDSCH上传送数据至RS604。根据子帧格式614，PDSCH上的数据包括UE1数据、UE2数据及UE3数据，CI-1、CI-2及CI-3则在PDCCH上传送。In an exemplary embodiment, the BS 602 transmits UE1-CI, UE2-CI and UE3-CI to the RS 604 on the PDCCH and transmits data to the RS 604 on the PDSCH in the subframe N based on the subframe format 614. According to the subframe format 614, the data on the PDSCH includes UE1 data, UE2 data and UE3 data, while CI-1, CI-2 and CI-3 are transmitted on the PDCCH.
类似于上文所述，在子帧N之后所传送的子帧(例如子帧N+X(图未示出))中，BS 602可在PDCCH上分别传送CI-1、CI-2及CI-3至UE1、UE2及UE3，且RS 604可在PDSCH上分别传送UE1数据、UE2数据及UE3数据至UE1、UE2及UE3。如此一来，UE1、UE2及UE3便可接收到由RS 604中继的数据。Similar to the above, in subframes transmitted after subframe N (such as subframe N+X (not shown in the figure)), BS 602 can transmit CI-1, CI-2 and CI-2 on the PDCCH respectively -3 to UE1, UE2 and UE3, and RS 604 can transmit UE1 data, UE2 data and UE3 data to UE1, UE2 and UE3 respectively on PDSCH. In this way, UE1, UE2 and UE3 can receive the data relayed by RS 604.
图7是根据一范例实施例所绘示的用于使RS 704将自BS 702接收的数据中继至UE 706的中继传输过程700。仅出于例示目的，假定UE 706包括第一UE UE1、第二UE UE2及第三UE UE3。举例而言，BS 702、RS 704及UE1可分别为BS 302、RS 304及UE 306(图3)。FIG. 7 illustrates a relay transmission process 700 for RS 704 to relay data received from BS 702 to UE 706 according to an exemplary embodiment. For illustrative purposes only, it is assumed that UE 706 includes a first UE UE1, a second UE UE2 and a third UE UE3. For example, BS 702, RS 704, and UE1 may be BS 302, RS 304, and UE 306, respectively (FIG. 3).
在范例实施例中，在基于子帧格式710或712的子帧N中，BS 702是分别传送(即在不同的频带或不同的资源区块中传送)欲中继至UE1、UE2及UE3的数据(在本文中分别称为UE1数据、UE2数据及UE3数据)与控制信息，此控制信息指示供RS 704中继UE1数据、UE2数据及UE3数据的资源分配(在本文中分别称为CI-1、CI-2及CI-3)。In an exemplary embodiment, in subframe N based on subframe format 710 or 712, BS 702 respectively transmits (i.e. transmits in different frequency bands or different resource blocks) to be relayed to UE1, UE2 and UE3 Data (respectively referred to as UE1 data, UE2 data, and UE3 data herein) and control information, and the control information indicates resource allocation for RS 704 to relay UE1 data, UE2 data, and UE3 data (respectively referred to herein as CI- 1. CI-2 and CI-3).
在范例实施例中，BS 702使用RS 704的RNTI对控制信息进行编码，此控制信息指示供RS 704接收CI-1、CI-2及CI-3的资源分配(在本文中称为RS-CI)。BS 702还在PDCCH上传送RS-CI至RS 704，并在PDSCH上传送CI-1、CI-2及CI-3至RS 704。In an example embodiment, BS 702 uses the RNTI of RS 704 to encode control information indicating resource allocations for RS 704 to receive CI-1, CI-2, and CI-3 (referred to herein as RS-CI ). BS 702 also transmits RS-CI to RS 704 on PDCCH and CI-1, CI-2 and CI-3 to RS 704 on PDSCH.
在一个范例实施例中，根据子帧格式710，BS 702使用UE1、UE2及UE3各自的RNTI对控制信息进行编码，此控制信息指示供RS 704接收UE1数据、UE2数据及UE3数据的资源分配且在本文中分别称为UE1-CI、UE2-CI及UE3-CI。BS 702还在PDCCH上传送UE1-CI、UE2-CI及UE3-CI至RS 704，并在PDSCH上传送UE1数据、UE2数据及UE3数据至RS 704。In an exemplary embodiment, according to the subframe format 710, the BS 702 uses the respective RNTIs of UE1, UE2, and UE3 to encode control information, and the control information indicates resource allocation for the RS 704 to receive UE1 data, UE2 data, and UE3 data and They are respectively referred to as UE1-CI, UE2-CI and UE3-CI herein. BS 702 also transmits UE1-CI, UE2-CI and UE3-CI to RS 704 on PDCCH, and transmits UE1 data, UE2 data and UE3 data to RS 704 on PDSCH.
在一个范例实施例中，根据子帧格式712，BS 702使用RS的RNTI对控制信息进行编码，此控制信息指示供RS 704接收UE1数据、UE2数据及UE3数据的资源分配且在本文中亦被称为RS-CI。BS 702还在PDCCH上传送RS-CI至RS 704，并在PDSCH上传送UE1数据、UE2数据及UE3数据至RS 704。In an exemplary embodiment, according to the subframe format 712, the BS 702 uses the RNTI of the RS to encode control information indicating resource allocation for the RS 704 to receive UE1 data, UE2 data, and UE3 data and is also referred to herein as Called RS-CI. BS 702 also transmits RS-CI to RS 704 on PDCCH, and transmits UE1 data, UE2 data and UE3 data to RS 704 on PDSCH.
类似于上文所述，在子帧N之后所传送的子帧(例如子帧N+X(图未示出))中，BS 702可在PDCCH上分别传送CI-1、CI-2及CI-3至UE1、UE2及UE3，且RS 704可在PDSCH上分别传送UE1数据、UE2数据及UE3数据至UE1、UE2及UE3。如此一来，UE1、UE2及UE3便可接收到由RS 704中继的数据。Similar to the above, in subframes transmitted after subframe N (such as subframe N+X (not shown in the figure)), BS 702 can transmit CI-1, CI-2 and CI-2 on PDCCH respectively -3 to UE1, UE2 and UE3, and the RS 704 can transmit UE1 data, UE2 data and UE3 data to UE1, UE2 and UE3 respectively on the PDSCH. In this way, UE1, UE2 and UE3 can receive the data relayed by RS 704.
图8是根据一范例实施例所绘示的用于使RS 804将自BS 802接收的数据中继至UE 806的中继传输过程800。仅出于例示目的，假定UE 806包括第一UE UE1、第二UE UE2及第三UE UE3。举例而言，BS 802、RS 804及UE1可分别为BS 302、RS 304及UE 306(图3)。FIG. 8 illustrates a relay transmission process 800 for RS 804 to relay data received from BS 802 to UE 806 according to an exemplary embodiment. For illustrative purposes only, it is assumed that UE 806 includes a first UE UE1, a second UE UE2 and a third UE UE3. For example, BS 802, RS 804, and UE1 may be BS 302, RS 304, and UE 306, respectively (FIG. 3).
在范例实施例中，在子帧N中，BS 802在PDSCH上传送数据至UE1、UE2及UE3(在本文中分别称为UE1数据、UE2数据及UE3数据)。BS 802亦对指示供UE1、UE2及UE3接收UE1数据、UE2数据及UE3数据的资源分配的控制信息(在本文中分别被称为CI-1′、CI-2′及CI-3′)进行编码，并在PDCCH上传送CI-1′、CI-2′及CI-3′。In an example embodiment, in subframe N, BS 802 transmits data on PDSCH to UE1, UE2 and UE3 (referred to herein as UE1 data, UE2 data and UE3 data, respectively). BS 802 also controls control information (referred to herein as CI-1', CI-2' and CI-3' respectively) indicating resource allocation for UE1, UE2 and UE3 to receive UE1 data, UE2 data and UE3 data coded, and transmit CI-1', CI-2' and CI-3' on the PDCCH.
如上文所述，RS 804可通过来自BS 802的专用信号或通过监听在BS 802与每一UE1、UE2及UE3之间交换的信息，获得UE1、UE2及UE3的RNTI。如此一来，在BS 802传送数据及控制信息至UE1、UE2及UE3的同时，RS 804亦可分别根据UE1、UE2及UE3的RNTI来接收UE1数据、UE2数据及UE3数据。As mentioned above, RS 804 can obtain the RNTI of UE1, UE2 and UE3 through a dedicated signal from BS 802 or by listening to the information exchanged between BS 802 and each UE1, UE2 and UE3. In this way, while the BS 802 transmits data and control information to UE1, UE2 and UE3, the RS 804 can also receive UE1 data, UE2 data and UE3 data according to the RNTI of UE1, UE2 and UE3 respectively.
在范例实施例中，UE1、UE2及UE3可能不能正确接收到在子帧N中传送的数据，并因此请求BS 802重传此数据。相应地，在子帧M中，BS 802向RS 804传送控制信息，此控制信息指示供RS 804中继UE1数据、UE2数据及UE3数据的资源分配(在本文中分别称为CI-1、CI-2及CI-3)。应理解，亦可在传送子帧N之前传送子帧M。In an example embodiment, UE1, UE2, and UE3 may not correctly receive the data transmitted in subframe N, and thus request the BS 802 to retransmit the data. Correspondingly, in subframe M, BS 802 transmits control information to RS 804, and the control information indicates resource allocation for RS 804 to relay UE1 data, UE2 data, and UE3 data (referred to as CI-1, CI-1 in this document, respectively). -2 and CI-3). It should be understood that the subframe M may also be transmitted before the subframe N is transmitted.
在一个范例实施例中，根据子帧格式810，BS 802使用RS 804的RNTI对控制信息进行编码，此控制信息指示供RS 804接收CI-1、CI-2及CI-3的资源分配(在本文中称为RS-CI)。BS 802还在PDCCH上传送RS-CI至RS 804，并在PDCCH或PDSCH上传送CI-1、CI-2及CI-3至RS 804。在一个范例实施例中，根据子帧格式812，BS 802直接在PDCCH上传送CI-1、CI-2及CI-3至RS 804。In an exemplary embodiment, according to the subframe format 810, the BS 802 uses the RNTI of the RS 804 to encode control information indicating resource allocation for the RS 804 to receive CI-1, CI-2, and CI-3 (in referred to herein as RS-CI). BS 802 also transmits RS-CI to RS 804 on PDCCH, and transmits CI-1, CI-2 and CI-3 to RS 804 on PDCCH or PDSCH. In an exemplary embodiment, according to the subframe format 812, the BS 802 transmits CI-1, CI-2 and CI-3 directly on the PDCCH to the RS 804.
类似于上文所述，在子帧N之后所传送的子帧(例如子帧N+X(图未示出))中，BS 802可在PDCCH上分别传送CI-1、CI-2及CI-3至UE1、UE2及UE3，且RS 804可在PDSCH上分别传送UE1数据、UE2数据及UE3数据至UE1、UE2及UE3。如此一来，UE1、UE2及UE3便可接收到由RS 804重传的数据。Similar to the above, in subframes transmitted after subframe N (such as subframe N+X (not shown in the figure)), BS 802 can transmit CI-1, CI-2 and CI-2 on PDCCH respectively -3 to UE1, UE2 and UE3, and RS 804 can transmit UE1 data, UE2 data and UE3 data to UE1, UE2 and UE3 respectively on PDSCH. In this way, UE1, UE2 and UE3 can receive the data retransmitted by RS 804.
图9是根据一范例实施例所绘示的用于使RS 904将自BS 902接收的数据中继至UE 906的中继传输过程900。仅出于例示目的，假定UE 906包括第一UE UE1、第二UE UE2及第三UE UE3。举例而言，BS 902、RS 904及UE1可分别为BS 302、RS 304及UE 306(图3)。FIG. 9 is a relay transmission process 900 for RS 904 to relay data received from BS 902 to UE 906 according to an exemplary embodiment. For illustrative purposes only, it is assumed that UE 906 includes a first UE UE1, a second UE UE2 and a third UE UE3. For example, BS 902, RS 904, and UE1 may be BS 302, RS 304, and UE 306, respectively (FIG. 3).
在范例实施例中，类似于上文结合图5至图8所述，在子帧N中，BS 902将欲中继至UE1、UE2及UE3的数据(在本文中分别称为UE1数据、UE2数据及UE3数据)以及控制信息传送至RS 904，此控制信息指示用于中继UE1数据、UE2数据及UE3数据的资源分配(在本文中分别称为CI-1、CI-2及CI-3)。In an exemplary embodiment, similar to that described above in conjunction with FIGS. data and UE3 data) and control information are sent to RS 904, this control information indicates resource allocation for relaying UE1 data, UE2 data and UE3 data (referred to as CI-1, CI-2 and CI-3 respectively in this article ).
在范例实施例中，在子帧N之后所传送的子帧(例如子帧N+X)中，BS902可在PDCCH上分别传送CI-1、CI-2及CI-3至UE1、UE2及UE3。另外，BS 902及RS904可同时在PDSCH上分别传送UE1数据、UE2数据及UE3数据至UE1、UE2及UE3。如此一来，UE1、UE2及UE3便可同时自BS 902与RS 904接收数据。图9显示子帧N+X的范例子帧格式920及922。In an exemplary embodiment, in subframes transmitted after subframe N (eg subframe N+X), BS902 may transmit CI-1, CI-2 and CI-3 on PDCCH to UE1, UE2 and UE3 respectively . In addition, BS 902 and RS 904 can transmit UE1 data, UE2 data and UE3 data to UE1, UE2 and UE3 respectively on PDSCH at the same time. In this way, UE1, UE2 and UE3 can receive data from BS 902 and RS 904 at the same time. FIG. 9 shows example subframe formats 920 and 922 for subframe N+X.
在范例实施例中，BS可在同一资源区块中传送指示对RS的资源分配的控制信息与指示对UE的资源分配的控制信息。为防止UE不正确地接收到RS的控制信息，BS可根据RS特定指示信息或对应于盲译码的编码方法来传送控制信息。In an example embodiment, the BS may transmit the control information indicating the resource allocation to the RS and the control information indicating the resource allocation to the UE in the same resource block. To prevent the UE from incorrectly receiving the control information of the RS, the BS may transmit the control information according to RS specific indication information or a coding method corresponding to blind decoding.
图10是根据一范例实施例所绘示的用于使BS传送控制信息至RS的RS特定指示信息1000。参见图10，RS特定指示信息1000可包括以下参数其中之一或多者：格式类型，其指示此信息1000是供RS使用；UE辨识符，其规定数据欲被中继到的UE，并例如为UE的RNTI、逻辑信道标识(LogicalChannel Identification，LCID)、或联机ID；子帧索引，其指示用于中继传输的子帧；资源区块(Resource Block，RB)指配，其指示资源分配；调变及编码方案(Modulation and Coding Scheme，MCS)，其指示所欲使用的MCS；冗余版本(redundancy version)；新数据指示符，其供用于混合自动请求(HybridAutomatic Request，HARQ)过程；用于数据的传输功率控制(TransmissionPower Control，TPC)命令；前文索引(preamble index)；以及图10中所示的其它参数。此等其它参数在此项技术中众所周知，故不再赘述。FIG. 10 illustrates RS-specific indication information 1000 for enabling the BS to transmit control information to the RS according to an exemplary embodiment. Referring to FIG. 10, the RS-specific indication information 1000 may include one or more of the following parameters: format type, which indicates that this information 1000 is used by the RS; UE identifier, which specifies the UE to which the data is to be relayed, and for example RNTI, logical channel identification (LogicalChannel Identification, LCID), or connection ID of UE; subframe index, which indicates the subframe used for relay transmission; resource block (Resource Block, RB) assignment, which indicates resource allocation ; modulation and coding scheme (Modulation and Coding Scheme, MCS), which indicates the MCS to be used; redundancy version (redundancy version); new data indicator, which is used for hybrid automatic request (Hybrid Automatic Request, HARQ) process; Transmission Power Control (TPC) commands for data; preamble index; and other parameters shown in FIG. 10 . These other parameters are well known in the art, and thus will not be repeated here.
在范例实施例中，RS特定指示信息1000可包含于MAC标头、控制元件、信息、RLC信息或RRC信息中。In example embodiments, the RS-specific indication information 1000 may be included in a MAC header, control element, message, RLC message or RRC message.
图11是根据一范例实施例所绘示的一种用于使BS传送控制信息至RS及UE的编码方法1100。如上文所述，BS可将呈多条下行链路控制信息(DownlinkControl Information，DCI)形式的控制信息编码至多个控制信道元件中。若BS将用于RS的DCI编码至第一数目的CCE中，并将用于UE的DCI编码至不同于第一数目的第二数目的CCE中，则UE可能不能正确地解码用于RS的DCI，且只有RS可正确地解码用于RS的DCI。FIG. 11 illustrates a coding method 1100 for enabling a BS to transmit control information to an RS and a UE according to an exemplary embodiment. As described above, the BS may encode control information in the form of multiple pieces of Downlink Control Information (DCI) into multiple control channel elements. If the BS encodes the DCI for the RS into a first number of CCEs and encodes the DCI for the UE into a second number of CCEs different from the first number, the UE may not correctly decode the DCI for the RS DCI, and only the RS can correctly decode the DCI for the RS.
更具体而言，如图11所示，用于RS的DCI与用于UE的DCI可被编码至不同数目的CCE中。举例而言，用于UE的DCI可被编码至1/2/4/8个CCE中，而用于RS的DCI可被编码至3/5/6/7个CCE中。因此，用于RS的DCI与用于UE的DCI可在例如PDCCH上在同一资源区块中传送，且UE可能不能正确地解码用于RS的DCI。图11亦显示对应于不同数目的CCE的范例性参数值，例如PDCCH长度类型、资源元素群组的数目以及PDCCH位的数目。此等参数在此项技术中众所周知，故不再赘述。More specifically, as shown in FIG. 11 , the DCI for the RS and the DCI for the UE can be coded into different numbers of CCEs. For example, DCI for UE can be encoded into 1/2/4/8 CCEs, while DCI for RS can be encoded into 3/5/6/7 CCEs. Therefore, the DCI for the RS and the DCI for the UE may be transmitted in the same resource block, eg, on the PDCCH, and the UE may not be able to correctly decode the DCI for the RS. FIG. 11 also shows exemplary parameter values corresponding to different numbers of CCEs, such as PDCCH length type, number of resource element groups, and number of PDCCH bits. These parameters are well known in the art, so they will not be repeated here.
在范例实施例中，若用于RS的DCI与用于UE的DCI将在不同的子帧或不同的资源区块中传送，则此等DCI亦可被编码至相同数目的CCE(例如2个CCE)中。In an example embodiment, if the DCI for the RS and the DCI for the UE are to be transmitted in different subframes or different resource blocks, then these DCIs can also be encoded into the same number of CCEs (eg, 2 CCE).
图12是根据一范例实施例所绘示的用于使BS根据方法1100(图11)传送控制信息至RS及UE的过程1200。举例而言，BS传送与附加有循环冗余校验(CRC)奇偶校验位的DCI相同的控制信息1202。FIG. 12 illustrates a process 1200 for enabling the BS to transmit control information to the RS and the UE according to the method 1100 ( FIG. 11 ) according to an exemplary embodiment. For example, the BS transmits the same control information 1202 as DCI appended with cyclic redundancy check (CRC) parity bits.
参见图12，BS将DCI 1202编码至第一数目的CCE 1204(例如4个CCE)中以供在子帧K中传送至UE，并将DCI 1202编码至第二数目的CCE 1206(例如3个CCE)中以供在子帧N中传送至RS。在UE端上，UE可根据被指配给UE使用的不同数目的CCE，使用盲译码方法200(图2)来译码CCE 1204。在RS端上，RS亦可根据被指配给RS使用的不同数目的CCE，使用盲译码方法200(图2)来译码CCE 1206。如此一来，UE与RS便可分别解码CCE 1204与CCE 1206，并在CRC之后接收DCI 1202。在范例实施例中，BS亦可在同一子帧中传送CCE 1204与CCE 1206。12, the BS encodes DCI 1202 into a first number of CCEs 1204 (eg, 4 CCEs) for transmission to the UE in subframe K, and encodes DCI 1202 into a second number of CCEs 1206 (eg, 3 CCEs) CCE) for transmission to the RS in subframe N. On the UE side, the UE may decode the CCEs 1204 using the blind decoding method 200 (FIG. 2) according to the different numbers of CCEs assigned to the UE for use. On the RS side, the RS can also use the blind decoding method 200 (FIG. 2) to decode the CCEs 1206 according to the different numbers of CCEs assigned to the RS to use. In this way, UE and RS can respectively decode CCE 1204 and CCE 1206 and receive DCI 1202 after CRC. In an example embodiment, the BS may also transmit the CCE 1204 and the CCE 1206 in the same subframe.
图13是根据一范例实施例所绘示的一种用于使BS传送控制信息至RS及UE的编码方法1300。参见图13，BS对DCI附加CRC奇偶校验位(1302)，并判断此DCI是否将传送至RS(1304)。若BS判定此DCI不欲传送至RS而是欲传送至UE(1304-「否」)，则BS使用UE的标识(例如UE的RNTI)对CRC奇偶校验位进行加扰(1306)，并还对DCI执行信道编码以产生已编码信号(1308)。当UE接收到具有经加扰的CRC奇偶校验位的DCI时，UE可通过使用其自身的RNTI对CRC奇偶校验位进行解扰来成功地接收DCI。FIG. 13 illustrates a coding method 1300 for enabling the BS to transmit control information to the RS and the UE according to an exemplary embodiment. Referring to FIG. 13, the BS appends CRC parity bits to the DCI (1302), and judges whether the DCI will be transmitted to the RS (1304). If the BS determines that the DCI is not intended to be transmitted to the RS but to the UE (1304-"No"), the BS uses the identity of the UE (such as the RNTI of the UE) to scramble the CRC parity (1306), and Channel coding is also performed on the DCI to produce a coded signal (1308). When the UE receives DCI with scrambled CRC parity bits, the UE can successfully receive the DCI by descrambling the CRC parity bits using its own RNTI.
而若BS判定此DCI欲传送至RS(1304-「是」)，则BS使用RS的标识(例如RS的RNTI)对CRC奇偶校验位进行加扰(1310)。BS还判断此DCI是否指示用于将数据中继至UE的资源分配(1312)。若BS判定DCI是指示用于将数据中继至UE的资源分配(1312-「是」)，则BS还使用UE的RNTI对CRC奇偶校验位进行加扰(1314)。反之(1312-「否」)，则BS对DCI执行信道编码，以产生已编码信号(1308)。BS亦可对此等已编码信号执行速率匹配(1316)。当RS接收到具有经加扰的CRC奇偶校验位的DCI时，RS可通过使用其自身的RNTI及/或UE的RNTI对CRC奇偶校验位进行解扰来成功地接收DCI。And if the BS determines that the DCI is to be sent to the RS (1304—"Yes"), the BS uses the identity of the RS (eg, the RNTI of the RS) to scramble the CRC parity bits (1310). The BS also determines whether the DCI indicates a resource allocation for relaying data to the UE (1312). If the BS determines that the DCI is indicative of a resource allocation for relaying data to the UE (1312—"Yes"), the BS also scrambles the CRC parity bits using the UE's RNTI (1314). Otherwise (1312-"No"), the BS performs channel coding on the DCI to generate a coded signal (1308). The BS may also perform rate matching on the encoded signals (1316). When the RS receives DCI with scrambled CRC parity bits, the RS can successfully receive the DCI by descrambling the CRC parity bits using its own RNTI and/or the UE's RNTI.
图14是根据一范例实施例所绘示的用于使BS传送控制信息至RS及UE的过程1400。举例而言，BS可将用于UE的控制信息作为附加有CRC奇偶校验位的DCI 1402进行传送，并将用于RS的控制信息作为附加有CRC奇偶校验位的DCI 1404进行传送。FIG. 14 illustrates a process 1400 for enabling the BS to transmit control information to the RS and the UE according to an exemplary embodiment. For example, the BS may transmit control information for the UE as DCI 1402 with CRC parity appended and control information for the RS as DCI 1404 with CRC parity appended.
参见图14，BS将DCI 1402编码至若干CCE 1406(例如4个CCE)中以供传送至UE，并将DCI 1404编码至相同数目的CCE 1408(即4个CCE)中以供传送至RS。BS还在不同频率资源中传送CCE 1406与CCE 1408。在UE端上，UE可使用盲译码方法200(图2)来译码CCE 1406，而在RS端上，RS亦可使用盲译码方法200(图2)来译码CCE 1408。如此一来，UE与RS便可分别解码CCE 1406与CCE 1408，并在CRC之后接收DCI 1402与DCI1404。Referring to FIG. 14, the BS encodes DCI 1402 into several CCEs 1406 (eg, 4 CCEs) for transmission to the UE, and encodes DCI 1404 into the same number of CCEs 1408 (ie, 4 CCEs) for transmission to the RS. The BS also transmits CCE 1406 and CCE 1408 in different frequency resources. On the UE side, the UE can use the blind decoding method 200 (FIG. 2) to decode the CCE 1406, and on the RS side, the RS can also use the blind decoding method 200 (FIG. 2) to decode the CCE 1408. In this way, UE and RS can decode CCE 1406 and CCE 1408 respectively, and receive DCI 1402 and DCI 1404 after CRC.
在一个范例实施例中，BS在同一子帧N中传送CCE 1406及CCE 1408。如图13所解释，由于BS可使用UE及RS各自的RNTI对UE及RS的CRC奇偶校验位进行加扰，故UE及RS可分别正确地解码CCE 1406及CCE 1408。In an example embodiment, the BS transmits CCE 1406 and CCE 1408 in the same subframe N. As explained in FIG. 13, since the BS can scramble the CRC parity bits of the UE and the RS using their respective RNTIs, the UE and the RS can correctly decode CCE 1406 and CCE 1408, respectively.
图15是根据一范例实施例所绘示的基站1500的方块图。举例而言，BS1500可为上文在图3至图14中所述的任一基站。参见图15，BS 1500可包括以下元件其中之一或多者：处理器1502，用以运行计算机程序指令，以执行各种处理程序及方法；随机存取内存(Random Access Memory，RAM)1504及只读存储器(Read Only Memory，ROM)1506，用以存取及储存信息及计算机程序指令；储存器1508，用以储存数据及信息；数据库1510，用以储存表、列表或其它数据结构；I/O装置1512；界面1514；天线1516等等。此等元件其中的每一者皆在此项技术中众所周知，故不再赘述。Fig. 15 is a block diagram of a base station 1500 according to an exemplary embodiment. For example, BS1500 can be any of the base stations described above in FIG. 3 to FIG. 14 . Referring to FIG. 15, BS 1500 may include one or more of the following elements: processor 1502 for running computer program instructions to execute various processing procedures and methods; random access memory (Random Access Memory, RAM) 1504 and Read-only memory (Read Only Memory, ROM) 1506 is used to access and store information and computer program instructions; storage 1508 is used to store data and information; database 1510 is used to store tables, lists or other data structures; I /O device 1512; interface 1514; antenna 1516, etc. Each of these elements is well known in the art, and thus will not be described in detail.
图16是根据一范例实施例所绘示的RS 1600的方块图。举例而言，RS 1600可为上文在图3至图14中所述的任一中继站。参见图16，RS 1600可包括以下元件其中之一或多者：处理器1602，用以运行计算机程序指令，以执行各种处理程序及方法；随机存取内存(RAM)1604及只读存储器(ROM)1606，用以存取及储存信息及计算机程序指令；储存器1608，用以储存数据及信息；数据库1610，用以储存表、列表或其它数据结构；I/O装置1612；界面1614；天线1616等等。此等元件其中之每一者皆在此项技术中众所周知，故不再赘述。FIG. 16 is a block diagram of RS 1600 according to an exemplary embodiment. For example, RS 1600 can be any of the relay stations described above in FIGS. 3-14 . 16, RS 1600 may include one or more of the following elements: a processor 1602 for running computer program instructions to execute various processing procedures and methods; random access memory (RAM) 1604 and read-only memory ( ROM) 1606 for accessing and storing information and computer program instructions; memory 1608 for storing data and information; database 1610 for storing tables, lists or other data structures; I/O device 1612; interface 1614; Antenna 1616 and so on. Each of these elements is well known in the art, and thus will not be described in detail.
图17是根据一范例实施例所绘示的UE 1700的方块图。举例而言，UE1700可为上文在图3至图14中所述的任一使用者设备。参见图17，UE 1700可包括以下元件其中之一或多者：处理器1702，用以运行计算机程序指令，以执行各种处理程序及方法；随机存取内存(RAM)1704及只读存储器(ROM)1706，用以存取及储存信息及计算机程序指令；储存器1708，用以储存数据及信息；数据库1710，用以储存表、列表或其它数据结构；I/O装置1712；界面1714；天线1716等等。此等元件其中的每一者皆在此项技术中众所周知，故不再赘述。FIG. 17 is a block diagram of a UE 1700 according to an exemplary embodiment. For example, the UE 1700 can be any user equipment described above in FIG. 3 to FIG. 14 . 17, UE 1700 may include one or more of the following elements: a processor 1702 for running computer program instructions to execute various processing procedures and methods; random access memory (RAM) 1704 and read-only memory ( ROM) 1706 for accessing and storing information and computer program instructions; storage 1708 for storing data and information; database 1710 for storing tables, lists or other data structures; I/O device 1712; interface 1714; Antenna 1716 and so on. Each of these elements is well known in the art, and thus will not be described in detail.
尽管上文是根据LTE标准来阐述各实施例，然而本发明并非仅限于此。亦可以其它通讯标准同等有效地实施本发明。Although the embodiments are described above according to the LTE standard, the present invention is not limited thereto. The invention can be equally effectively implemented in other communication standards.
尽管上文是根据下行链路传输(例如自BS至RS或至UE的数据传输)来阐述各实施例，然而本发明并非仅限于此。亦可使用上行链路传输(例如自UE至BS或至RS的数据传输)同等有效地实施本发明。Although the above embodiments are described in terms of downlink transmission (eg, data transmission from BS to RS or to UE), the invention is not limited thereto. The invention can also be equally effectively implemented using uplink transmissions, such as data transmissions from UE to BS or to RS.
通过阅读本说明书及实践本文所揭露的实施例，本发明的其它实施例对于熟习此项技术者将显而易见。本发明的范围旨在涵盖遵循本发明的一般原理而对本发明作出的任何改动、使用或修改，此等改动、使用或修改可包含属于此项技术中现有或惯常作法的与本发明不同的处。本说明书及各实例旨在仅被视为例示性的，本发明的真正范围及精神应由下文申请专利范围表示。Other embodiments of the invention will be apparent to those skilled in the art from reading the specification and practicing the embodiments disclosed herein. The scope of the present invention is intended to cover any alteration, use or modification of the invention following the general principles of the invention which may include variations from the present invention which are present or customary in the art place. It is intended that the specification and examples be considered illustrative only, with the true scope and spirit of the invention being indicated by the following claims.
虽然本发明已以较佳实施例揭露如上，然其并非用以限定本发明，任何熟习此技艺者，在不脱离本发明的精神和范围内，当可作些许的更动与润饰，因此本发明的保护范围当视后附的申请专利范围所界定者为准。Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in the art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention shall be defined by the scope of the appended patent application.
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US29223510P | 2010-01-05 | 2010-01-05 | |
| US61/292,235 | 2010-01-05 | ||
| US12/914,208US9300393B2 (en) | 2010-01-05 | 2010-10-28 | Systems and methods for data relay transmission |
| US12/914,208 | 2010-10-28 |
| Publication Number | Publication Date |
|---|---|
| CN102118869A CN102118869A (en) | 2011-07-06 |
| CN102118869Btrue CN102118869B (en) | 2015-01-21 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010621769.7AActiveCN102118869B (en) | 2010-01-05 | 2010-12-24 | System and method for data relay transmission |
| Country | Link |
|---|---|
| CN (1) | CN102118869B (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103139922B (en)* | 2011-11-25 | 2015-05-13 | 华为技术有限公司 | Method, device and system for transmitting and receiving control channel information |
| CN105792368B (en)* | 2016-02-26 | 2019-08-23 | 上海华为技术有限公司 | A kind of method, relevant device and system controlling information processing |
| CN110166411B (en)* | 2018-02-13 | 2022-05-06 | 华为技术有限公司 | A data transmission method, device and network node |
| CN112088556B (en)* | 2018-05-11 | 2022-01-04 | Oppo广东移动通信有限公司 | Signal transmission method, relay device and network device |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505344A (en)* | 2002-12-04 | 2004-06-16 | ��ʽ����Ntt����Ħ | Relay device, method for controlling content delivery, and content delivery system |
| CN101150498A (en)* | 2006-09-18 | 2008-03-26 | 华为技术有限公司 | Multi-hop wireless relay communication system and downlink data transmission method thereof |
| CN101155194A (en)* | 2006-09-28 | 2008-04-02 | 华为技术有限公司 | Communication resource allocation instruction method, system and device thereof |
| CN101159905A (en)* | 2007-11-07 | 2008-04-09 | 华为技术有限公司 | Method for implementing local switching in base station controller, core network equipment and network system |
| WO2008055222A2 (en)* | 2006-10-31 | 2008-05-08 | Qualcomm Incorporated | Method and apparatus for increasing ack resources for a wireless communication system |
| CN101232319A (en)* | 2007-01-23 | 2008-07-30 | 上海贝尔阿尔卡特股份有限公司 | Signal uplink transmission method in relay device of wireless network based on relay |
| CN101578782A (en)* | 2006-11-14 | 2009-11-11 | 韩国电子通信研究院 | Handover method using mobile relay station |
| CN101601218A (en)* | 2007-01-31 | 2009-12-09 | 诺基亚公司 | Be used for Frame Protocol and the signaling used in high-speed transfer |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7400856B2 (en)* | 2003-09-03 | 2008-07-15 | Motorola, Inc. | Method and apparatus for relay facilitated communications |
| CN101166055B (en)* | 2006-10-18 | 2011-06-01 | 华为技术有限公司 | Multi-hop relay method and multi-hop relay system |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505344A (en)* | 2002-12-04 | 2004-06-16 | ��ʽ����Ntt����Ħ | Relay device, method for controlling content delivery, and content delivery system |
| CN101150498A (en)* | 2006-09-18 | 2008-03-26 | 华为技术有限公司 | Multi-hop wireless relay communication system and downlink data transmission method thereof |
| CN101155194A (en)* | 2006-09-28 | 2008-04-02 | 华为技术有限公司 | Communication resource allocation instruction method, system and device thereof |
| WO2008055222A2 (en)* | 2006-10-31 | 2008-05-08 | Qualcomm Incorporated | Method and apparatus for increasing ack resources for a wireless communication system |
| CN101578782A (en)* | 2006-11-14 | 2009-11-11 | 韩国电子通信研究院 | Handover method using mobile relay station |
| CN101232319A (en)* | 2007-01-23 | 2008-07-30 | 上海贝尔阿尔卡特股份有限公司 | Signal uplink transmission method in relay device of wireless network based on relay |
| CN101601218A (en)* | 2007-01-31 | 2009-12-09 | 诺基亚公司 | Be used for Frame Protocol and the signaling used in high-speed transfer |
| CN101159905A (en)* | 2007-11-07 | 2008-04-09 | 华为技术有限公司 | Method for implementing local switching in base station controller, core network equipment and network system |
| Publication number | Publication date |
|---|---|
| CN102118869A (en) | 2011-07-06 |
| Publication | Publication Date | Title |
|---|---|---|
| TWI449455B (en) | Systems and methods for data relay transmission | |
| JP7570728B2 (en) | Method for multiplexing uplink control information in a wireless communication system and apparatus using the same | |
| JP7686309B2 (en) | Method and apparatus for transmitting uplink shared channel in wireless communication system | |
| CN113056888B (en) | Method and apparatus for low-delay and high-reliability data transmission in wireless communication systems | |
| CN107925538B (en) | Method and apparatus for communication in a narrowband system | |
| KR102492932B1 (en) | Method, apparatus and system for receiving downlink data and transmitting HARQ-ACK in wireless communication system | |
| TWI751988B (en) | Narrow-band physical control channel design | |
| CN104170500B (en) | Terminal device, base station device, communication method, and integrated circuit | |
| CN104170496B (en) | Terminal installation and its communication means, base station apparatus and its communication means and integrated circuit | |
| JP6162244B2 (en) | Terminal apparatus, base station apparatus, and communication method | |
| CN104205971B (en) | Terminal installation, base station apparatus and integrated circuit | |
| CN106464296B (en) | Method, device and system for transmitting data | |
| US20190081722A1 (en) | User terminal, radio base station, and radio communication method | |
| CN108476087B (en) | Wireless access node, wireless device and operation method and storage medium thereof | |
| WO2014017304A1 (en) | Terminal device, base station device, communication method, and integrated circuit | |
| WO2017135385A1 (en) | Terminal device, base station device, and communication method | |
| CN114982175B (en) | Time division multiplexing mapping of transmission configuration indicator states to control channels | |
| JPWO2015020190A1 (en) | Terminal apparatus, base station apparatus, and communication method | |
| WO2017135312A1 (en) | Terminal device and communication method | |
| WO2013135032A1 (en) | Method, base station, and user equipment for transmitting downlink control signal | |
| CN108713344A (en) | User terminal, wireless base station and wireless communications method | |
| KR102725228B1 (en) | Method and apparatus for scheduling and transmission of uplink data in wireless cellular communication system | |
| CN104170499B (en) | Terminal installation, base station apparatus and integrated circuit | |
| CN102118869B (en) | System and method for data relay transmission | |
| CN111480380A (en) | Method and apparatus for sending and receiving control information and data information in a wireless communication system |
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |