WO2015103728A1 - 用户设备协作通信方法、装置及系统 - Google Patents

用户设备协作通信方法、装置及系统 Download PDF

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Publication number
WO2015103728A1
WO2015103728A1 PCT/CN2014/070218 CN2014070218W WO2015103728A1 WO 2015103728 A1 WO2015103728 A1 WO 2015103728A1 CN 2014070218 W CN2014070218 W CN 2014070218W WO 2015103728 A1 WO2015103728 A1 WO 2015103728A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
downlink data
network device
rnti
receive
Prior art date
Application number
PCT/CN2014/070218
Other languages
English (en)
French (fr)
Inventor
张磊
王艺
陈大庚
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/070218 priority Critical patent/WO2015103728A1/zh
Priority to JP2016544795A priority patent/JP2017506026A/ja
Priority to CN201480068792.4A priority patent/CN105830527A/zh
Priority to EP14878263.4A priority patent/EP3076748A4/en
Priority to SG11201605025UA priority patent/SG11201605025UA/en
Priority to KR1020187002848A priority patent/KR20180014241A/ko
Priority to RU2016132489A priority patent/RU2642828C1/ru
Priority to KR1020167020797A priority patent/KR20160104680A/ko
Publication of WO2015103728A1 publication Critical patent/WO2015103728A1/zh
Priority to US15/203,780 priority patent/US20160323891A1/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022Site diversity; Macro-diversity
    • H04B7/026Co-operative diversity, e.g. using fixed or mobile stations as relays
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/04Terminal devices adapted for relaying to or from another terminal or user
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/14Relay systems
    • H04B7/15Active relay systems
    • H04B7/155Ground-based stations
    • H04B7/15592Adapting at the relay station communication parameters for supporting cooperative relaying, i.e. transmission of the same data via direct - and relayed path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/21Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/54Allocation or scheduling criteria for wireless resources based on quality criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24Transfer of terminal data
    • H04W8/245Transfer of terminal data from a network towards a terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a user equipment cooperative communication method, apparatus, and system. Background technique
  • Multiple Input Multiple Output MIMO is a technology in a multi-antenna wireless communication system that can independently transmit signals using multiple antennas at the transmitting end, and receive and recover the original information sent by the transmitting end with multiple antennas at the receiving end. This technique has a good effect on suppressing channel fading, implementing space division multiplexing or transmit diversity, reducing the bit error rate, increasing the transmission rate, and improving the transmission quality.
  • the number of antennas of the user equipment is difficult to increase due to factors such as volume, channel correlation, antenna size, and cost. Since the performance of space division multiplexing or transmit diversity is affected by the number of antennas, the transmission rate or transmission quality of the user equipment is not high. Summary of the invention
  • the embodiments of the present invention provide a user equipment cooperative communication method, device, and system, which are used to implement diversity gain or multiplexing of a user equipment without adding a physical antenna of the user equipment.
  • the first aspect of the present invention provides a user equipment cooperative communication method, including: receiving, by a network device, a collaboration request sent by a first user equipment;
  • the network device sends a first indication message to the first user equipment, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device, Receiving a second portion of the first downlink data from the second user equipment.
  • the network device is After the cooperation request is determined, the determining that the first user equipment that the first user equipment receives the first downlink data is further included:
  • the network device sends a second indication message to the second user equipment, where the second indication message is used to indicate that the second user equipment receives the second downlink data from the network device. Partially forwarded to the first user equipment.
  • the method further includes:
  • the network device sends a third indication message to the second user equipment, where the third indication message is used to indicate that the second user equipment receives the first part of the second downlink data from the network device, The first user equipment receives the second portion of the second downlink data.
  • the method further includes:
  • the network device sends a fourth indication message to the first user equipment, where the fourth indication message is used to indicate that the first user equipment forwards the second part of the second downlink data that is received by the network device to The second user equipment.
  • the determining, by the network device, the first user equipment, the second user equipment, to receive the second downlink data specifically: the network device When the second user equipment cooperates, the first user equipment receives the first downlink data, and the first user equipment cooperates with the second user equipment to receive the second downlink data, the first Whether the communication quality of the user equipment and the second user equipment meets a preset threshold;
  • the network device determines that the first user equipment cooperates with the second user equipment to receive second downlink data.
  • the network device determines, according to the collaboration request, the collaboration After the user equipment receives the at least one second user equipment of the first downlink data, the method further includes: Transmitting, by the network device, a first cell radio network temporary identifier to each of the second user equipments
  • each of the second user equipment demodulates the control information of the first downlink data according to the first C-RNTI;
  • the network device sends the first C-RNTI to any at least one of the second user equipments, so that all the second user equipments share the first C-RNTI.
  • the first C-RNTI is a C-RNTI of the first user equipment, or is a C- The RNTI, or, is a preset C-RNTI.
  • the method further includes:
  • the network device sends a second C-RNTI to the first user equipment, so that the first user equipment demodulates the control information of the second downlink data according to the second C-RNTI.
  • the second C-RNTI is a C-RNTI of the second user equipment, or is a C- The RNTI, or, is a preset C-RNTI.
  • the first part of the first downlink data and the first The second part of the downlink data is the same, or the first part of the first downlink data is different from the second part of the first downlink data.
  • an embodiment of the present invention provides a user equipment cooperative communication method, including: sending, by a first user equipment, a collaboration request to a network device;
  • the first indication message sent by the network device, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device Receiving, by the second user equipment, the second part of the first downlink data;
  • the method further includes: the first user equipment receives a fourth indication message that is sent by the network device, where the fourth indication message is used to indicate The second downlink data that the first user equipment receives from the network device The second portion is forwarded to the second user equipment.
  • the method further includes: the first user equipment negotiates with the second user equipment, to enable the first user equipment to be from the network device Receiving a second portion of the second downlink data and forwarding to the second user equipment.
  • the method further includes:
  • the first user equipment receives a second part of the second downlink data that is sent by the network device; the first user equipment sends the second part of the second downlink data to the second user equipment.
  • the method further includes:
  • the first user equipment demodulates the control information of the second downlink data according to the second C-RNTI.
  • the C-RNTI is the C-RNTI of the second user equipment, or is the C-RNTI of the first user equipment, or is a preset C-RNTI.
  • the method further includes:
  • the first user equipment negotiates with the second user equipment to enable the second user equipment to receive the second part of the first downlink data from the network device and forward the same to the first user equipment.
  • the embodiment of the present invention provides a user equipment cooperative communication method, including: receiving, by a second user equipment, a second part of the first downlink data that is sent by the network device, where the first part of the first downlink data is Transmitting the network device to the first user equipment;
  • the second user equipment forwards the second part of the first downlink data to the first user equipment.
  • the method before the second user equipment receives the second part of the first downlink data that is sent by the network device, the method further includes:
  • the method before the second user equipment receives the second part of the first downlink data that is sent by the network device, the method further includes:
  • the second user equipment negotiates with the first user equipment, so that the second user equipment receives the second part of the first downlink data from the network device and forwards the same to the first user equipment .
  • the second user equipment receives the first downlink data that is sent by the network device Before the second part, it also includes:
  • the second user equipment demodulates the control information of the first downlink data according to the first C-RNTI.
  • the second user equipment is a primary user equipment of all user equipments that are configured to cooperate with the first user equipment to receive the first downlink data.
  • the method further includes:
  • the primary user equipment demodulates the control information of the first downlink data according to the first C-RNTI.
  • the first C-RNTI is a C-RNTI of the first user equipment, or The C-RNTI of the second user equipment, or, is a preset C-RNTI.
  • the method further includes:
  • the second user equipment receives a third indication message sent by the network device, where the third indication message is further used to indicate that the second user equipment receives the first part of the second downlink data from the network device,
  • the first user equipment receives a second portion of the second downlink data.
  • the device After receiving the third indication message sent by the network device, the device further includes:
  • the second user equipment receives a first portion of the second downlink data from the network device, and receives a second portion of the second downlink data from the first user equipment.
  • the method before the receiving, by the first user equipment, the second part of the second downlink data, the method further includes:
  • the second user equipment negotiates with the first user equipment, so that the first user equipment receives a second part of the second downlink data from the network device and forwards the second downlink device to the second user equipment.
  • a fourth aspect of the present invention provides a user equipment cooperative communication network device, including: a receiving module, configured to receive a collaboration request sent by a first user equipment;
  • a determining module configured to determine, according to the collaboration request received by the receiving module, the at least one second user equipment that cooperates with the first user equipment to receive the first downlink data
  • a sending module configured to send a first indication message to the first user equipment, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device Receiving a second portion of the first downlink data from the second user equipment.
  • the sending module is further configured to: send a second indication message to the second user equipment, where the second indication message is used to indicate the The second user equipment forwards the second part of the first downlink data received by the network device to the first user equipment.
  • the determining module is further configured to: after the receiving module receives the collaboration request sent by the first user equipment, determine, to be sent Determining, by the first user equipment, the second user equipment to receive the second downlink data; the sending module is further configured to: send the third user equipment to the second user equipment An indication message, the third indication message is used to indicate that the second user equipment receives the first part of the second downlink data from the network device, and receives the second downlink data from the first user equipment the second part.
  • the sending module is further configured to: send a fourth indication message to the first user equipment, where the fourth indication message is used to indicate The second part of the second downlink data that the first user equipment receives from the network device Forwarding to the second user equipment.
  • the determining module is specifically configured to: determine that the second user equipment cooperates with the first user equipment to receive the first downlink data and Whether the communication quality of the first user equipment and the second user equipment meets a preset threshold when the first user equipment cooperates with the second user equipment to receive the second downlink data; And setting the threshold, the network device determines that the first user equipment cooperates with the second user equipment to receive the second downlink data.
  • the sending module is further configured to: After the cooperation request is performed, after determining that the first user equipment that the first user equipment receives the first downlink data, the first cell wireless network temporary identifier is sent to each of the second user equipments.
  • each of the second user equipments demodulates control information of the first downlink data according to the first C-RNTI; or sends to any at least one of the second user equipments The first C-RNTI, so that all the second user equipments share the first C-RNTI.
  • the C-RNTI is the C-RNTI of the first user equipment, or is the second user equipment
  • C-RNTI or, is a preset C-RNTI.
  • the sending module is further configured to: determine, by the determining module, that the first user equipment cooperates with the second user equipment to receive a second downlink After the data, the second C-RNTI is sent to the first user equipment, so that the first user equipment demodulates the control information of the second downlink data according to the second C-RNTI.
  • the C-RNTI is the C-RNTI of the second user equipment, or is the first user equipment
  • C-RNTI or, is a preset C-RNTI.
  • the first part of the first downlink data and the first The second part of the downlink data is the same, or the first part of the first downlink data is different from the second part of the first downlink data.
  • an embodiment of the present invention provides a user equipment, including:
  • a sending module configured to send a collaboration request to the network device
  • a receiving module configured to receive a first indication message sent by the network device, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device;
  • Receiving a first indication message sent by the network device where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device;
  • the receiving module is further configured to receive a first part of the first downlink data sent by the network device, and receive a second part of the first downlink data from the second user equipment.
  • the receiving module is further configured to: receive a fourth indication message that is sent by the network device, where the fourth indication message is further used to indicate the A user equipment forwards a second portion of the second downlink data received from the network device to the second user equipment.
  • the method further includes:
  • the first negotiation module is configured to negotiate with the second user equipment, so that the first user equipment receives the second part of the second downlink data from the network device and forwards the second downlink device to the second user equipment.
  • the receiving module is further configured to: after receiving the first indication message sent by the network device, receive the a second part of the second downlink data sent by the network device; the sending module is further configured to: after the receiving module receives the second part of the second downlink data sent by the network device, the second downlink data The second part is sent to the second user equipment.
  • the receiving module is further configured to: after the sending module sends a cooperation request to the network device, receive the second cell sent by the network device
  • the control information is demodulated.
  • the second C-RNTI is a C-RNTI of the second user equipment, or is a C- The RNTI, or, is a preset C-RNTI.
  • the method further includes: a second negotiation module, configured to negotiate with the second user equipment, to enable the second user equipment to receive the second part of the first downlink data from the network device, and forward the second user to the first user device.
  • a second negotiation module configured to negotiate with the second user equipment, to enable the second user equipment to receive the second part of the first downlink data from the network device, and forward the second user to the first user device.
  • an embodiment of the present invention provides a user equipment, including:
  • a receiving module configured to receive a second part of the first downlink data that is sent by the network device, where the first part of the first downlink data is sent by the network device to the first user equipment;
  • a sending module configured to forward the second part of the first downlink data to the first user equipment.
  • the receiving module is further configured to: receive a second indication message that is sent by the network device, where the second indication message is used to indicate the second user equipment Forwarding a second portion of the first downlink data received from the network device to the first user equipment.
  • the method further includes: a first negotiation module, configured to negotiate with the first user equipment, to enable the second user equipment to The network device receives the second portion of the first downlink data and forwards the same to the first user equipment.
  • the receiving module is further configured to: receive, by the network device, the first Before receiving the second part of the downlink data, the first cell radio network temporary identifier C-RNTI sent by the network device is received, and the control information of the first downlink data is demodulated according to the first C-RNTI.
  • the first C-RNTI is a C-RNTI of the first user equipment, or is a C- The RNTI, or, is a preset C-RNTI.
  • the receiving module is further configured to: receive a third indication message that is sent by the network device, where the third indication message is further used to indicate The second user equipment receives a first portion of the second downlink data from the network device, and receives a second portion of the second downlink data from the first user equipment.
  • the receiving module receives the third finger sent by the network device After the message is displayed, the receiving module is further configured to: receive a first part of the second downlink data from the network device, and receive a second part of the second downlink data from the first user equipment.
  • the method further includes: a second negotiation module, configured to negotiate with the first user equipment, to enable the first user equipment to The network device receives the second portion of the second downlink data and forwards the second portion to the second user equipment.
  • an embodiment of the present invention provides a network device, including: a processor and a memory, where the memory stores an execution instruction, when the network device is running, the processor and the memory communicate, The processor executes the execution instructions such that the base station performs the method of the first aspect.
  • an embodiment of the present invention provides a user equipment, including a processor and a memory, where the memory stores an execution instruction, and when the user equipment is running, the processor communicates with the memory, and the processing Executing the execution instructions causes the user equipment to perform the method of the second aspect.
  • an embodiment of the present invention provides a user equipment, including a processor and a memory, where the memory stores an execution instruction, when the user equipment is running, the processor and the memory communicate, the processing Executing the execution instructions causes the user equipment to perform the method of the third aspect.
  • the embodiment of the present invention further provides a user equipment cooperative communication system, including the network device provided by the fourth aspect of the present invention, the first user equipment provided by the fifth aspect, and the second user equipment provided by the sixth aspect.
  • the embodiment of the present invention further provides a user equipment cooperative communication system, including the network device provided by the seventh aspect of the present invention, the first user equipment provided by the eighth aspect, and the second user equipment provided by the ninth aspect .
  • the network device may determine, for the user equipment, another at least one second user equipment that cooperatively receives downlink data, and The indication message indicates that the first user equipment can receive downlink data through the network device and the second user equipment, respectively. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the error rate can be reduced, and the diversity gain can be obtained. The channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain. DRAWINGS
  • FIG. 1 is a flowchart of another embodiment of a user equipment cooperative communication method according to the present invention
  • FIG. 2 is a flowchart of another embodiment of a user equipment cooperative communication method provided by the present invention
  • FIG. 4 is a schematic diagram of a specific implementation manner in which the second user equipment cooperates with the first user equipment to receive the first downlink data, and the first user equipment does not cooperate with the second user equipment;
  • FIG. 5 is a schematic diagram of a specific implementation manner in which a second user equipment cooperates with a first user equipment to receive first downlink data, and a first user equipment cooperates with a second user equipment to receive second downlink data;
  • FIG. 6 is a network provided by the present invention; Schematic diagram of an embodiment of the device;
  • FIG. 7 is a schematic structural diagram of an embodiment of a user equipment provided by the present invention.
  • FIG. 8 is a schematic structural diagram of another embodiment of a user equipment according to the present invention.
  • FIG. 9 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention.
  • FIG. 10 is a schematic structural diagram of another embodiment of a user equipment according to the present invention
  • FIG. 11 is a schematic structural diagram of another embodiment of a network device according to the present invention
  • FIG. 12 is a schematic structural diagram of another embodiment of a user equipment according to the present invention.
  • FIG. 13 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention. detailed description
  • next-generation communication systems such as Global System for Mobile Communications (GSM), CDMA (Code Division Multiple Access) systems, Time Division Multiple Access (TDMA), Broadband (Time Division Multiple Access) systems, broadband Code Division Multiple Access (WCDMA), FDMA (Frequency Division Multiple Addressing) system, Orthogonal Frequency-Division Multiple Access (OFDM A) system, single Carrier FDMA (SC-FDMA) system, General Packet Radio Service (GPRS) system, Long Term Evolution (LTE) system, and other such communication systems.
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • WCDMA broadband Code Division Multiple Access
  • FDMA Frequency Division Multiple Addressing
  • OFDM A Orthogonal Frequency-Division Multiple Access
  • SC-FDMA single Carrier FDMA
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • the user equipment involved in the present application may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connectivity, or a wireless modem. Other processing equipment.
  • the wireless terminal can communicate with one or more core networks via a radio access network (eg, RAN, Radio Access Network), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and with a mobile terminal
  • RAN Radio Access Network
  • the computers for example, can be portable, pocket-sized, handheld, computer-integrated or in-vehicle mobile devices that exchange language and/or data with the wireless access network.
  • a wireless terminal may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, or an access point.
  • Remote Terminal Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • the network device involved in the present application may be, for example, a base station and a radio network controller (Radio
  • RNC Radio Network Controller
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station (NodeB or eNB or e in LTE). -NodeB, evolutional Node B), this application is not limited.
  • FIG. 1 is a flowchart of an embodiment of a user equipment cooperative communication method according to the present invention. As shown in FIG. 1 , the method in this embodiment may include:
  • Step 101 The network device receives a collaboration request sent by the first user equipment.
  • Step 102 The network device determines, according to the collaboration request, the at least one second user equipment that the cooperative first user equipment receives the first downlink data.
  • Step 103 The network device sends a first indication message to the first user equipment, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device, and receives the first part from the second user equipment. The second part of the row data.
  • the collaboration request may carry the identifier of the first user equipment to uniquely represent the first user equipment in the network.
  • the cooperation request may further carry parameters such as description information of link quality between the first user equipment and the second user equipment.
  • the downlink quality is poor, the error rate of the first user equipment receiving the downlink data from the network device is higher than a predetermined value, and the first part and the second part of the first downlink data may be the same;
  • the downlink quality is better, so that the error rate of the first user equipment receiving the downlink data from the network device is lower than a predetermined value, and the first part and the second part of the first downlink data may be different.
  • the second user equipment that the first user equipment receives the first downlink data may be one or more.
  • the network device may first perform the chain between the first user equipment and the second user equipment reported by the first user equipment or the second user equipment.
  • the path quality information, the link quality information between the first user equipment and the network device, and the link quality information between the second user equipment and the network device, determining whether the second user equipment cooperates with the first user equipment can be the first
  • the user equipment brings beneficial effects, such as whether a multiplexing gain or a diversity gain can be brought to the first user equipment. If the benefit does not reach the predetermined value, the network device may not select the second user device and select another second user device to cooperate with the first user device.
  • the network device may adjust the rate transmission level according to the quality between the first and second user equipment links. For example, when the quality of the first and second user equipment links is not good, the rate at which the second user equipment cooperates with the first user equipment to receive data may be limited, and the network device sends the first data of the first downlink data. The rate of the second part should also be reduced. Otherwise, when the second user equipment cooperates with the first user equipment, the data cannot be processed in time and sent in time, resulting in failure to cooperate normally.
  • "Inter-user equipment link" can be established for network devices
  • the quality-to-user equipment transmission rate - network device data transmission rate - network device data transmission level” mapping table the network device can select an appropriate rate transmission level according to the mapping table.
  • the network device may carry the identifier of the second user equipment in the sent first indication message, and further, may carry the information that the second user equipment cooperates with the start time of the first user equipment, so that the second user equipment can be more accurate.
  • the assistance of receiving downlink data may be carried.
  • the second user equipment may send a second indication message, where the second indication message is used to indicate that the second user equipment will be the network equipment.
  • the second portion of the received first downlink data is forwarded to the first user equipment.
  • the first user equipment may further negotiate with the second user equipment in advance, so that the second user equipment receives the second part of the first downlink data from the network device, and forwards the information to the first user. device.
  • the network device may further determine that the first user equipment cooperates with the second user equipment to receive the second downlink data.
  • the network device may further send a third indication message to the second user equipment, where the second user equipment is configured to receive the first part of the second downlink data from the network device, and receive the second downlink from the first user equipment.
  • the second part of the data may be a message, that is, the network device forwards the second part of the first downlink data received by the second device from the network device to the first user.
  • the device may further instruct the second user equipment to receive the first part of the second downlink data from the network device, and receive the second part of the second downlink data from the first user equipment.
  • the network device may further send a fourth indication message to the first user equipment, where the second user equipment is the same as the first user equipment.
  • the first user equipment forwards the second portion of the second downlink data received from the network device to the second user equipment.
  • the first user equipment may also pre-negotiate with the second user equipment, so that the first user equipment receives the second part of the second downlink data from the network equipment and forwards the second downlink information to the second user equipment.
  • the first indication message and the fourth indication message may also be a message, that is, the second part of the second downlink data that the network device indicates that the first device will receive from the network device. While being forwarded to the second user equipment, the first user equipment may be instructed to receive the first part of the first downlink data from the network equipment, and receive the second part of the first downlink data from the second user equipment.
  • the network device may determine that the second user equipment cooperates with the first user equipment to receive the first downlink data, and the first user equipment cooperates with the second user equipment to receive the second downlink data, where the first user equipment and the second user equipment Whether the communication quality meets the preset threshold, if the preset threshold is met, the network device may determine that the first user equipment cooperates with the second user equipment to receive the second downlink data.
  • the second user equipment can achieve multiplexing gain or diversity gain.
  • the network device may use the link quality information between the first user device and the second user device, and the link quality information between the first user device and the network device. And the link quality information between the second user equipment and the network device, determining that the first user equipment cooperates with the second user equipment, and after the second user equipment cooperates with the first user equipment, the communication between the first user equipment and the second user equipment The impact of quality. If the communication quality of any one of the first user equipment and the second user equipment is because the first user equipment cooperates with the second user equipment, and the second user equipment cooperates with the first user equipment and does not meet the preset threshold, or does not reach The first user equipment and the second user equipment may not perform cooperative communication to a predetermined multiplexing gain or diversity gain effect. In this implementation scenario, the network device may change the collaboration relationship, for example, cancel the cooperation of the first user equipment with the second user equipment, or cancel the cooperation of the second user equipment with the first user equipment, or cancel the two types of cooperation.
  • the network device may further provide the second user equipment to each second user equipment. Transmitting a first cell radio network temporary identifier C-RNTI, so that each second user equipment demodulates the control information of the first downlink data according to the first C-RNTI, or the network device sends any at least one second user The device sends the first C-RNTI such that all the second user equipments share the first C-RNTI.
  • the second user equipment may demodulate the physical downlink control channel PDCCH of the first user equipment, and obtain control information of the first user equipment, so that the second user equipment sends the first user equipment to the first user equipment.
  • Sending a second part of the first downlink data For example, after the PDCCH of the second user equipment is demodulated, the second user equipment can learn the time-frequency resource block occupied by the second part of the first downlink data, and learn the receiving mode of the first user equipment (for example, space division multiplexing). Or transmit diversity), to know the control information such as discontinuous reception DRX configuration.
  • Network equipment is adjustable when necessary The configuration parameters of the first user equipment or the second user equipment are consistent, so that the related configuration parameters are consistent (for example, the paging group is consistent, the DRX is consistent, the feedback period is consistent, etc.), to implement the first user equipment and the second Efficient collaboration between user devices.
  • the frequency used for the communication link between the first user equipment and the second user equipment may be an out-of-band frequency, and a specific communication method may be, for example, communication through a direct communication D2D protocol between terminals.
  • the first C-RNTI may be a C-RNTI of the first user equipment, or may be a C-RNTI of the second user equipment, or may be a preset C-RNTI.
  • the scrambling of the control channel by the base station may use the C-RNTI of the first user equipment, or the C-RNTI of the second user equipment, or another predetermined C-RNTI, and correspondingly, the base station sends The first C-RNTI to the second user equipment should be the C-RNTI of the first user equipment, or the C-RNTI of the second user equipment, or another predetermined C-RNTI.
  • the network device may determine, for the user equipment, another at least one second user equipment that cooperatively receives the downlink data, and indicate, by using the indication message, that the first user equipment can separately
  • the downlink data is received by the network device and the second user equipment. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • FIG. 2 is a flowchart of another embodiment of a user equipment cooperative communication method according to the present invention. As shown in FIG. 2, the method in this embodiment may include:
  • Step 201 The first user equipment sends a collaboration request to the network device.
  • Step 202 The first user equipment receives a first indication message sent by the network device, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device, and receives the first part from the second user equipment. The second part of the downlink data.
  • Step 203 The first user equipment receives the first part of the first downlink data sent by the network device, and receives the second part of the first downlink data from the second user equipment.
  • the first user equipment may further receive a fourth indication message that is sent by the network device, and is used to indicate that the first user equipment forwards the second part of the second downlink data that is received by the network device to the second user equipment.
  • the first user equipment may also pre-negotiate with the second user equipment, so that the first user equipment receives the second part of the second downlink data from the network equipment and forwards the second downlink information to the second user equipment.
  • the first indication message and the fourth indication message may also be a message, that is, the network device forwards the second part of the second downlink data received by the first device from the network device to the second user.
  • the device may further instruct the first user equipment to receive the first part of the first downlink data from the network device, and receive the second part of the first downlink data from the second user equipment.
  • the first user equipment after receiving the second part of the second downlink data sent by the network device, the first user equipment sends the second part of the second downlink data to the second user equipment.
  • the second user equipment when the second user equipment cooperates with the first user equipment, if the network equipment determines that the second user equipment is also receiving the downlink user data sent by the network device, the first user equipment can also cooperate with the second user equipment.
  • the second user equipment is enabled to obtain multiplexing gain or diversity gain.
  • the first user equipment may further receive the second C-RNTI sent by the network device.
  • the first user equipment may demodulate the control information of the second downlink data according to the second C-RNTI.
  • the first user equipment decodes the PDCCH of the second user equipment by using the second C-RNTI, and obtains control information of the second user equipment, so that the first user equipment sends the second part of the second downlink data to the second user equipment.
  • the second C-RNTI may be a C-RNTI of the second user equipment, or may be a C-RNTI of the first user equipment, or may be a preset C-RNTI.
  • the first user equipment may send a collaboration request to the network device, and the network device may determine another at least one user equipment that cooperatively receives the downlink data, and indicate, by using the indication message, that the user equipment can respectively pass the network device and other users.
  • the device receives downlink data. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • FIG. 3 is a flowchart of still another embodiment of a user equipment cooperative communication method according to the present invention. As shown in FIG. 3, the method in this embodiment may include:
  • Step 301 The second user equipment receives the second part of the first downlink data sent by the network device, where the first part of the first downlink data is sent by the network device to the first user equipment.
  • Step 302 The second user equipment forwards the second part of the first downlink data to the first user equipment.
  • the second user equipment may send a second indication message, where the second indication message is used to indicate that the second user equipment will be the network equipment.
  • the second portion of the received first downlink data is forwarded to the first user equipment.
  • the first user equipment may further negotiate with the second user equipment in advance, so that the second user equipment receives the second part of the first downlink data from the network device, and forwards the information to the first user. device.
  • the second user equipment may further receive the first C-RNTI sent by the network device, and the second user equipment may be according to the first C- The RNTI demodulates the control information of the first downlink data.
  • the second user equipment uses the first C-RNTI to decode the PDCCH of the first user equipment, and obtains control information of the first user equipment, so that the second user equipment sends the second part of the first downlink data to the first user equipment.
  • the second user equipment is the primary user equipment of all the user equipments that receive the first downlink data by the first user equipment, and before the second user equipment receives the second part of the first downlink data that is sent by the network equipment,
  • the second user equipment may also receive the first C-RNTI sent by the network device.
  • the primary user equipment may demodulate the control information of the first downlink data according to the first C-RNTI.
  • the primary user device may be one or more of the second user devices. When the primary user equipment is one of the second user equipments, only the one primary user equipment demodulates the PDCCH of the first user equipment, and the primary user equipment shares the control information of the first user equipment obtained by the demodulation to the first Two other user devices in the user equipment.
  • the multiple primary user equipments need to demodulate the PDCCH of the first user equipment, if some of the multiple primary user equipments do not receive the network equipment.
  • the first C-RNTI the primary user equipment that receives the first C-RNTI needs to share the first C-RNTI with the primary user equipment that does not receive the first C-RNTI.
  • the first C-RNTI may be a C-RNTI of the first user equipment, or may be a C-RNTI of the second user equipment, or may be a preset C-RNTI.
  • the second user equipment may receive the third indication message that is sent by the network device, where the third indication message is further used to indicate that the second user equipment receives the first part of the second downlink data from the network device, and receives the first part of the second downlink data.
  • the second part of the second downlink data or the second UE negotiates with the first UE, so that the first user equipment receives the second part of the second downlink data from the network device, and Forwarded to the second user device.
  • the network device may determine, for the user equipment, another at least one second user equipment that cooperatively receives the downlink data, and indicate, by using the indication message, that the first user equipment can separately
  • the downlink data is received by the network device and the second user equipment. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • the user equipment cooperative communication method provided by the present invention will be described below with two specific examples.
  • FIG. 4 is a schematic diagram of a specific implementation manner in which a second user equipment cooperates with a first user equipment to receive first downlink data, and a first user equipment does not cooperate with a second user equipment.
  • the network device is, for example,
  • the system model in which the first user equipment UE_0 receives downlink data can be described by the following formula:
  • Y0 represents the downlink data received by the first user equipment UE_0
  • Y1 represents the downlink data received by the second user equipment UE_1.
  • Hj denotes a spatial channel between the base station BS_0 and the user equipment j
  • P1 is a precoding matrix (or vector)
  • 10 and II respectively represent interference downlink data received by two user equipments except for SO
  • Nj denotes user equipment j.
  • the received noise signal In the case where there is no cooperation between user equipments, for UE_1, H i ' P i 'S. It is useless (interfering) downlink data, cannot be used, and cannot be provided to the first user equipment UE_0.
  • the second user equipment UE_1 can share the downlink data Y1 received by itself to the other party.
  • the above solution is applicable to the manner in which the first user equipment processes the received data when the second user equipment cooperates with the first user equipment.
  • the following scheme is applicable to a manner in which the second user equipment cooperates with the first user equipment, and when the first user equipment cooperates with the second user equipment, the user equipment processes the received data.
  • This embodiment is mainly applicable to an implementation scenario in which diversity gain is obtained.
  • the user equipment can receive the same data message from different links, thereby improving the quality of the data received by the user equipment, reducing the bit error rate, and achieving the beneficial effect of "transmit diversity", and obtaining diversity. Gain.
  • the first user equipment can obtain the diversity gain; in the two-way cooperation mode, for example, the second user equipment cooperates with the first user equipment, and the first user equipment cooperates with the second The user equipment, the first and second user equipments can all obtain the diversity gain.
  • FIG. 5 is a schematic diagram of a specific implementation manner in which a second user equipment cooperates with a first user equipment to receive first downlink data, and a first user equipment cooperates with a second user equipment to receive second downlink data.
  • the base station BS_0 Performing precoding on the joint channel of two user equipments, and transmitting multiple data streams in the same time-frequency resource block, in which the target user equipment of the partial data stream (SO) is the first user equipment UE0, part of the data stream
  • the target user equipment of (S1) is the second user equipment UE1o through information sharing, and the data received by the two user equipments is:
  • PI and P2 are precoding matrices of SO and SI.
  • the base station BS_0 can design a precoding matrix by some criteria.
  • the data throughput rate can be maximized by acquiring the precoding matrix by means of SVD decomposition. Let the combined channel dimension be ⁇ , which can be decomposed into:
  • V The dimensions of U, ⁇ , and V are ⁇ , ⁇ , ⁇ , respectively.
  • the receiver of the first user equipment UE_0 is W0, and the estimated value of SO can be obtained:
  • S 0 W 0 -Y
  • the receiver used by the second user equipment UE_1 is W1, and the estimated value of S1 can be obtained: s ⁇ w, Y
  • FIG. 6 is a schematic structural diagram of an embodiment of a network device according to the present disclosure, where the network device includes:
  • the receiving module 601 is configured to receive a collaboration request sent by the first user equipment.
  • the determining module 602 is configured to determine, according to the collaboration request received by the receiving module, the at least one second user equipment that the cooperative first user equipment receives the first downlink data;
  • the sending module 603 is configured to send a first indication message to the first user equipment, where the first indication message is used to instruct the first user equipment to receive the first part of the first downlink data from the network device, and receive the first part from the second user equipment The second part of the downlink data.
  • the sending module 603 is further configured to send a second indication message to the second user equipment, where the second indication message is used to indicate that the second user equipment forwards the second part of the first downlink data that is received from the network device. Give the first user device.
  • the determining module 602 is further configured to: after the receiving module receives the collaboration request sent by the first user equipment, determine second downlink data of the second user equipment to be sent; determine that the first user equipment cooperates with the second user equipment to receive the first The second downlink data; the sending module 603 is further configured to send a third indication message to the second user equipment, where the third indication message is used to instruct the second user equipment to receive the first part of the second downlink data from the network device, from the first user The device receives the second portion of the second downlink data.
  • the sending module 603 is further configured to send a fourth indication message to the first user equipment, where the fourth indication message is used to indicate that the first user equipment receives the second downlink data from the network device. The two parts are forwarded to the second user equipment.
  • the determining module 602 is specifically configured to: when the second user equipment cooperates with the first user equipment to receive the first downlink data, and the first user equipment cooperates with the second user equipment to receive the second downlink data, the first user equipment and Whether the communication quality of the second user equipment meets the preset threshold; if the preset threshold is met, the network device determines that the first user equipment cooperates with the second user equipment to receive the second downlink data.
  • the sending module 603 is further configured to: after determining, by the determining module, the at least one second user equipment that the first user equipment receives the first downlink data, according to the cooperation request, sending the first C to each second user equipment - RNTI, so that each second user equipment demodulates the control information of the first downlink data according to the first C-RNTI; or sends the first C-RNTI to any at least one second user equipment, so that all The second user equipment shares the first C-RNTI.
  • the first C-RNTI is a C-RNTI of the first user equipment, or is a C-RNTI of the second user equipment, or is a preset C-RNTI.
  • the sending module 603 is further configured to: after the determining module determines that the first user equipment cooperates with the second user equipment to receive the second downlink data, send the second C-RNTI to the first user equipment, so that the first user equipment is configured according to the first user equipment
  • the second C-RNTI demodulates the control information of the second downlink data.
  • the second C-RNTI is a C-RNTI of the second user equipment, or is a C-RNTI of the first user equipment, or is a preset C-RNTI.
  • the first part of the first downlink data is the same as the second part of the first downlink data, or the first part of the first downlink data is different from the second part of the first downlink data.
  • the network device provided by the embodiment of the present invention corresponds to the method embodiment provided by FIG. 1 of the present invention, and is an execution body of the method embodiment. Therefore, the specific process of the network device performing the user equipment cooperative communication method can be referred to the method embodiment. , will not repeat them here.
  • the network device provided by the embodiment may determine, for the user equipment, another at least one second user equipment that cooperatively receives the downlink data, and indicate, by using the indication message, that the first user equipment can separately
  • the downlink data is received by the network device and the second user equipment. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • FIG. 7 is a schematic structural diagram of an embodiment of a user equipment according to the present disclosure, where the user equipment includes:
  • the sending module 701 is configured to send a collaboration request to the network device.
  • the receiving module 702 is configured to receive a first indication message that is sent by the network device, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device, and receives the first indication message that is sent by the network device.
  • the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device.
  • the receiving module 702 is configured to receive a first part of the first downlink data sent by the network device, and receive a second part of the first downlink data from the second user equipment.
  • the receiving module 702 is further configured to: receive a fourth indication message sent by the network device, where the fourth indication message is further used to indicate that the first user equipment forwards the second part of the second downlink data received from the network device to the first Two user devices.
  • the user equipment may further include:
  • the first negotiation module 703 is configured to negotiate with the second UE, so that the first user equipment receives the second part of the second downlink data from the network device and forwards the second downlink data to the second user equipment.
  • the receiving module 702 is further configured to: after receiving the first indication message sent by the network device, receive the second part of the second downlink data sent by the network device; the sending module 701 is further configured to receive at the receiving module After the second part of the second downlink data sent by the network device, the second part of the second downlink data is sent to the second user equipment.
  • the receiving module 702 is further configured to: after the sending module sends the cooperation request to the network device, receive the second cell radio network temporary identifier C-RNTI sent by the network device; the receiving module 702 may be specifically configured to: in the receiving module After receiving the second C-RNTI sent by the network device, the control information of the second downlink data is demodulated according to the second C-RNTI.
  • the second C-RNTI is a C-RNTI of the second user equipment, or is a C-RNTI of the first user equipment, or is a preset C-RNTI.
  • the user equipment may further include:
  • the second negotiation module 704 is configured to negotiate with the second UE, so that the second user equipment receives the second part of the first downlink data from the network device and forwards the information to the first user equipment.
  • the user equipment provided by the embodiment of the present invention corresponds to the method embodiment provided by FIG. 2 of the present invention, and is an execution body of the method embodiment. Therefore, the user equipment performs user equipment cooperation.
  • the specific process of the method refer to the method embodiment, and details are not described herein again.
  • the user equipment provided in this embodiment may send a collaboration request to the network device, and the network device may determine at least one other user equipment that cooperatively receives the downlink data, and indicate, by using the indication message, that the user equipment can respectively pass the network device and the second user equipment.
  • Receive downlink data Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • FIG. 9 is a schematic structural diagram of another embodiment of a user equipment provided by the present invention, where the user equipment includes:
  • the receiving module 801 is configured to receive a second part of the first downlink data that is sent by the network device, where the first part of the first downlink data is sent by the network device to the first user equipment;
  • the sending module 802 is configured to forward the second part of the first downlink data to the first user equipment.
  • the receiving module 801 is further configured to: receive, by the network device, a second indication message, where the second indication message is used to indicate that the second user equipment forwards the second part of the first downlink data that is received by the network device to the second A user device.
  • the user equipment may further include:
  • the first negotiation module 803 is configured to negotiate with the first UE, so that the second user equipment receives the second part of the first downlink data from the network device and forwards the information to the first user equipment.
  • the receiving module 801 is further configured to: before receiving the second part of the first downlink data sent by the network device, receive the first cell radio network temporary identifier C-RNTI sent by the network device, according to the first C- The RNTI demodulates the control information of the first downlink data.
  • the first C-RNTI is a C-RNTI of the first user equipment, or is a C-RNTI of the second user equipment, or is a preset C-RNTI.
  • the receiving module 801 is further configured to: receive a third indication message that is sent by the network device, where the third indication message is further used to indicate that the second user equipment receives the first part of the second downlink data from the network device, from the first The user equipment receives the second portion of the second downlink data.
  • the receiving module 801 receives the third indication message sent by the network device
  • the receiving module is further configured to: receive, by the network device, the first part of the second downlink data, and receive, by the first user equipment, the second downlink data. Two parts.
  • the user equipment may further include: a second negotiation module 804, configured to enter with the first UE Negotiation, so that the first user equipment receives the second part of the second downlink data from the network device and forwards it to the second user equipment.
  • a second negotiation module 804 configured to enter with the first UE Negotiation, so that the first user equipment receives the second part of the second downlink data from the network device and forwards it to the second user equipment.
  • the user equipment provided by the embodiment of the present invention is corresponding to the method embodiment provided by FIG. 3 of the present invention, and is an execution body of the method embodiment. Therefore, the specific process of the user equipment performing the user equipment cooperative communication method may be referred to the method embodiment. , will not repeat them here.
  • the user equipment provided in this embodiment is an assisting device, and after receiving the cooperation request of the first user equipment, the network device may determine, for the user equipment, another at least one second user equipment that cooperatively receives the downlink data, and indicate the first
  • the user equipment can receive downlink data through the network device and the second user equipment, respectively. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • FIG. 11 is a schematic structural diagram of another embodiment of a network device according to the present disclosure, where the network device includes:
  • the network device 90 provided in this embodiment includes a processor 901 and a memory 902.
  • Network device 90 may also include a transmitter 903, a receiver 904.
  • Transmitter 903 and receiver 904 can be coupled to processor 901.
  • the transmitter 903 is configured to transmit data or information
  • the receiver 904 is configured to receive data or information
  • the memory 902 stores execution instructions, when the network device 90 is in operation
  • the processor 901 communicates with the memory 902, and the processor 901 calls the memory.
  • the execution instruction in 902 is used to perform the following operations:
  • the first user equipment is instructed to receive the first portion of the first downlink data from the network device, and the second portion of the first downlink data is received from the second user equipment.
  • the method may further: send a second indication message to the second user equipment, where the second indication message is used to indicate the second user equipment The second portion of the first downlink data received from the network device is forwarded to the first user equipment.
  • the method further includes: determining second downlink data of the second user equipment to be sent; determining that the first user equipment cooperates with the second user equipment to receive the second downlink data; and sending, by the second user equipment, the third indication message, the third The indication message is used to indicate that the second user equipment receives the second downlink from the network device.
  • the first portion of the data receives a second portion of the second downlink data from the first user equipment.
  • the first user equipment may further send: a fourth indication message, where the fourth indication message is used to indicate that the first user equipment The second portion of the received second downlink data is forwarded to the second user equipment.
  • the determining that the first user equipment cooperates with the second user equipment to receive the second downlink data may be: determining that the second user equipment cooperates with the first user equipment to receive the first downlink data, and the first user equipment cooperates with the second user. If the device receives the second downlink data, whether the communication quality of the first user equipment and the second user equipment meets the preset threshold; if the preset threshold is met, determining that the first user equipment cooperates with the second user equipment to receive the second downlink data.
  • the method may further: send, to each second user equipment, a first cell radio network temporary identifier C-RNTI, so that Each second user equipment demodulates the control information of the first downlink data according to the first C-RNTI; or sends the first C-RNTI to any at least one second user equipment, so that all the second user equipments are shared.
  • First C-RNTI a first cell radio network temporary identifier
  • the first C-RNTI is a C-RNTI of the first user equipment, or is a C-RNTI of the second user equipment, or is a preset C-RNTI.
  • the method further includes: sending, by the first user equipment, the second C-RNTI, so that the first user equipment is configured according to the second C-RNTI The control information of the second downlink data is demodulated.
  • the second C-RNTI is a C-RNTI of the second user equipment, or is a C-RNTI of the first user equipment, or is a preset C-RNTI.
  • the first part of the first downlink data is the same as the second part of the first downlink data, or the first part of the first downlink data is different from the second part of the first downlink data.
  • the network device provided by the embodiment of the present invention corresponds to the method embodiment provided by FIG. 1 of the present invention, and is an execution body of the method embodiment. Therefore, the specific process of the network device performing the user equipment cooperative communication method can be referred to the method embodiment. , will not repeat them here.
  • the network device provided by the embodiment may determine, for the user equipment, another at least one second user equipment that cooperatively receives the downlink data, and indicate, by using the indication message, that the first user equipment can separately
  • the downlink data is received by the network device and the second user equipment. Therefore, it can be improved without increasing the physical antenna of the user equipment.
  • the quality of the data received by the user equipment reduces the bit error rate and obtains the diversity gain. It can also increase the channel capacity and achieve the beneficial effect of "space division multiplexing" to obtain the multiplexing gain.
  • FIG. 12 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention.
  • the user equipment 100 provided in this embodiment includes a processor 1001 and a memory 1002.
  • User device 100 can also include a transmitter 1003, a receiver 1004.
  • Transmitter 1003 and receiver 1004 can be coupled to processor 1001.
  • the transmitter 1003 is configured to transmit data or information
  • the receiver 1004 is configured to receive data or information
  • the memory 1002 stores execution instructions.
  • the processor 1001 communicates with the memory 1002, and the processor 1001 calls the memory.
  • the execution instruction in 1002 is used to perform the following operations:
  • Sending a cooperation request to the network device sending a cooperation request to the network device; receiving a first indication message sent by the network device, where the first indication message is used to indicate that the first user equipment receives the first part of the first downlink data from the network device, and receives the first part from the second user equipment a second part of the downlink data; receiving a first part of the first downlink data sent by the network device, and receiving a second part of the first downlink data from the second user equipment.
  • the method further includes: receiving a fourth indication message sent by the network device, where the fourth indication message is used to indicate that the first user equipment forwards the second part of the second downlink data received from the network device to the second user equipment.
  • the method further includes: negotiating with the second UE, so that the first user equipment receives the second part of the second downlink data from the network device and forwards the second downlink device to the second user equipment.
  • the method further includes: receiving a second part of the second downlink data sent by the network device; and sending the second part of the second downlink data to the second user equipment.
  • the method may further: receive the second C-RNTI sent by the network device; and demodulate the control information of the second downlink data according to the second C-RNTI.
  • the second C-RNTI is a C-RNTI of the second user equipment, or is a C-RNTI of the first user equipment, or is a preset C-RNTI.
  • the method further includes: negotiating with the second UE, so that the second user equipment receives the second part of the first downlink data from the network device and forwards the information to the first user equipment.
  • the user equipment provided by the embodiment of the present invention corresponds to the method embodiment provided by FIG. 2 of the present invention, and is an execution body of the method embodiment. Therefore, the specific process of the user equipment performing the user equipment cooperative communication method can be referred to the method embodiment. , will not repeat them here.
  • the user equipment provided in this embodiment may send a collaboration request to the network device, and the network device
  • the at least one second user equipment that cooperatively receives the downlink data may be determined for the user equipment, and the indication message indicates that the first user equipment can receive the downlink data by using the network device and the second user equipment, respectively. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • FIG. 13 is a schematic structural diagram of still another embodiment of a user equipment according to the present invention.
  • the user equipment 110 provided in this embodiment includes a processor 1101 and a memory 1102.
  • User device 110 may also include a transmitter 1103, a receiver 1104.
  • Transmitter 1103 and receiver 1104 can be coupled to processor 1101.
  • the transmitter 1103 is configured to transmit data or information
  • the receiver 1104 is configured to receive data or information
  • the memory 1102 stores execution instructions.
  • the processor 1101 communicates with the memory 1102, and the processor 1101 calls the memory.
  • the execution instruction in 1102 is used to perform the following operations:
  • the first part of the first downlink data is sent by the network device to the first user equipment; and the second part of the first downlink data is forwarded to the first user equipment.
  • the method may further: receive a second indication message sent by the network device, where the second indication message is used to indicate that the second user equipment will be the network device The second portion of the received first downlink data is forwarded to the first user equipment.
  • the method may further: perform negotiation with the first UE, so that the second user equipment receives the second downlink data from the network device. Partially forwarded to the first user device.
  • the method may further be: receiving, by the network device, a first cell radio network temporary identifier C-RNTI; according to the first C-RNTI pair, the first The control information of the line data is demodulated.
  • the first user equipment of the user equipment that receives the first downlink data is configured to: receive the network device. And transmitting, by the first C-RNTI, the control information of the first downlink data is demodulated according to the first C-RNTI.
  • the first C-RNTI is a C-RNTI of the first user equipment, or is a C-RNTI of the second user equipment, or is a preset C-RNTI.
  • the method further includes: receiving a third indication message sent by the network device, where the third indication message is further used to indicate that the second user equipment receives the first part of the second downlink data from the network device, and receives the first part from the first user equipment. The second part of the second downlink data.
  • the method further includes: receiving, by the network device, the first part of the second downlink data, and receiving, by the first user equipment, the second part of the second downlink data.
  • the first user equipment Before receiving the second part of the second downlink data, the first user equipment may further perform: negotiating with the first UE, so that the first user equipment receives the second part of the second downlink data from the network device, and forwards the second part to the second User equipment.
  • the user equipment provided by the embodiment of the present invention is corresponding to the method embodiment provided by FIG. 3 of the present invention, and is an execution body of the method embodiment. Therefore, the specific process of the user equipment performing the user equipment cooperative communication method may be referred to the method embodiment. , will not repeat them here.
  • the user equipment provided by this embodiment is a collaboration device.
  • the network device may determine, for the user equipment, another at least one second user equipment that cooperatively receives downlink data, and indicates the first
  • the user equipment can receive downlink data through the network device and the second user equipment, respectively. Therefore, without increasing the physical antenna of the user equipment, the quality of the data received by the user equipment can be improved, the bit error rate can be reduced, and the diversity gain can be obtained.
  • the channel capacity can also be improved, and the beneficial effect of "space division multiplexing" can be achieved, and multiplexing can be obtained. Gain.
  • the present invention further provides an embodiment of a user equipment cooperative communication system, including the network device shown in FIG. 6, the first user equipment shown in FIG. 7 or FIG. 8, and the second as shown in FIG. 9 or FIG. User equipment.
  • the present invention further provides another embodiment of a user equipment cooperative communication system, including the network device shown in FIG. 11, the first user equipment shown in FIG. 12, and the second user equipment shown in FIG.
  • the user equipment cooperative communication system after receiving the cooperation request of the first user equipment, the network device may determine, for the user equipment, another at least one second user equipment that cooperatively receives the downlink data, and indicates by using the indication message.
  • a user equipment can receive downlink data through the network device and the second user equipment, respectively.

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Abstract

本发明提供一种用户设备协作通信方法、装置及系统。本发明用户设备协作通信方法,包括:网络设备接收第一用户设备发送的协作请求;根据协作请求,确定协作第一用户设备接收第一下行数据的至少一个第二用户设备;向第一用户设备发送第一指示消息,第一指示消息用于指示第一用户设备从网络设备接收第一下行数据中的第一部分,从第二用户设备接收第一下行数据的第二部分。本发明实施例可实现用户设备获得分集增益或者复用增益。

Description

用户设备协作通信方法、 装置及系统
技术领域
本发明涉及通信技术领域, 尤其涉及一种用户设备协作通信方法、 装置 及系统。 背景技术
多输入多输出 MIMO是一种多天线无线通信系统中的技术, 其能利用发 射端的多个天线各自独立发送信号, 在接收端用多个天线接收并恢复发送端 发送的原信息。 该技术对抑制信道衰落, 实现空分复用或发射分集, 降低误 码率, 提高传输速率, 提高传输质量有很好的效果。
对于用户设备 UE来说, 增加天线数量也是提高频谱效率进而提升系统 容量的重要手段之一。
现有技术中, 用户设备由于受到体积、 信道相关性、 天线尺寸、 成本等 因素的影响, 用户设备的天线数目难以增加。 由于空分复用或发射分集的性 能受到天线数目的影响, 导致用户设备的传输速率或传输质量不高。 发明内容
本发明实施例提供一种用户设备协作通信方法、 装置及系统, 在不增 加用户设备物理天线的前提下,用以实现用户设备获得分集增益或者复用增
.、 第一方面, 本发明实施例提供一种用户设备协作通信方法, 包括: 网络设备接收第一用户设备发送的协作请求;
所述网络设备根据所述协作请求, 确定协作所述第一用户设备接收第一 下行数据的至少一个第二用户设备;
所述网络设备向所述第一用户设备发送第一指示消息, 所述第一指示消 息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中的第 一部分, 从所述第二用户设备接收所述第一下行数据的第二部分。
结合第一方面, 在第一方面的第一种实施方式中, 所述网络设备根据所 述协作请求, 确定协作所述第一用户设备接收第一下行数据的至少一个第二 用户设备之后, 还包括:
所述网络设备向所述第二用户设备发送第二指示消息, 所述第二指示消 息用于指示所述第二用户设备将从所述网络设备接收的所述第一下行数据的 第二部分转发给所述第一用户设备。
结合第一方面或第一种实施方式, 在第一方面的第二种实施方式中, 还 包括:
所述网络设备确定待发送所述第二用户设备的第二下行数据;
所述网络设备确定所述第一用户设备协作所述第二用户设备接收第二下 行数据;
网络设备向所述第二用户设备发送第三指示消息, 所述第三指示消息用 于指示所述第二用户设备从所述网络设备接收所述第二下行数据中的第一部 分, 从所述第一用户设备接收所述第二下行数据的第二部分。
结合第二种实施方式, 在第一方面的第三种实施方式中, 所述网络设备 确定所述第一用户设备协作所述第二用户设备接收第二下行数据之后, 还包 括:
网络设备向所述第一用户设备发送第四指示消息, 所述第四指示消息用 于指示所述第一用户设备将从所述网络设备接收的所述第二下行数据的第二 部分转发给所述第二用户设备。
结合第二种实施方式, 在第一方面的第四种实施方式中, 所述网络设备 确定所述第一用户设备协作所述第二用户设备接收第二下行数据,具体包括: 所述网络设备判断所述第二用户设备协作所述第一用户设备接收所述第 一下行数据并且所述第一用户设备协作所述第二用户设备接收所述第二下行 数据情况下, 所述第一用户设备和所述第二用户设备的通信质量是否满足预 设阈值;
若满足所述预设阈值, 则所述网络设备确定所述第一用户设备协作所述 第二用户设备接收第二下行数据。
结合第一方面, 或第一种实施方式至第四种实施方式中的任意一种, 在 第一方面的第五种实施方式中, 所述网络设备根据所述协作请求, 确定协作 所述第一用户设备接收第一下行数据的至少一个第二用户设备之后,还包括: 所述网络设备向每个所述第二用户设备发送第一小区无线网络临时标识
C-RNTI, 以使每个所述第二用户设备根据所述第一 C-RNTI对所述第一下行 数据的控制信息进行解调; 或者,
所述网络设备向任意至少一个所述第二用户设备发送所述第一 C-RNTI, 以使所有所述第二用户设备共享所述第一 C-RNTI。
结合第五种实施方式, 在第一方面的第六种实施方式中, 所述第一 C-RNTI 为所述第一用户设备的 C-RNTI , 或者, 为所述第二用户设备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第二种实施方式, 在第一方面的第七种实施方式中, 所述网络设备 确定所述第一用户设备协作所述第二用户设备接收第二下行数据之后, 还包 括:
所述网络设备向所述第一用户设备发送第二 C-RNTI,以使所述第一用户 设备根据所述第二 C-RNTI对所述第二下行数据的控制信息进行解调。
结合第七种实施方式, 在第一方面的第八种实施方式中, 所述第二 C-RNTI 为所述第二用户设备的 C-RNTI , 或者, 为所述第一用户设备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第一方面, 或第一种实施方式至第八种实施方式中的任意一种, 在 第一方面的第九种实施方式中, 所述第一下行数据的第一部分和所述第一下 行数据的第二部分相同, 或者, 所述第一下行数据的第一部分和所述第一下 行数据的第二部分不同。
第二方面, 本发明实施例提供一种用户设备协作通信方法, 包括: 第一用户设备向网络设备发送协作请求;
所述第一用户设备接收所述网络设备发送的第一指示消息, 所述第一指 示消息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中 的第一部分, 从第二用户设备接收所述第一下行数据的第二部分;
所述第一用户设备接收所述网络设备发送的所述第一下行数据中的第一 部分, 从所述第二用户设备接收所述第一下行数据的第二部分。
结合第二方面, 在第二方面的第一种实施方式中, 所述方法还包括: 所述第一用户设备接收所述网络设备发送的第四指示消息, 所述第四指 示消息用于指示所述第一用户设备将从所述网络设备接收的第二下行数据的 第二部分转发给所述第二用户设备。
结合第二方面, 在第二方面的第二种实施方式中, 所述方法还包括: 第一用户设备与所述第二用户设备进行协商, 以使所述第一用户设备从 所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设备。
结合第一种实施方式或第二种实施方式, 在第二方面的第三种实施方式 中, 所述方法还包括:
所述第一用户设备接收所述网络设备发送的第二下行数据的第二部分; 所述第一用户设备将所述第二下行数据的第二部分发送给所述第二用户 设备。
结合第三种实施方式, 在第二方面的第四种实施方式中, 所述第一用户 设备向网络设备发送协作请求之后, 还包括:
所述第一用户设备接收所述网络设备发送的第二 C-RNTI;
所述第一用户设备根据所述第二 C-RNTI对所述第二下行数据的控制信 息进行解调。
结合第四种实施方式, 在第二方面的第五种实施方式中, 所述第二
C-RNTI 为所述第二用户设备的 C-RNTI , 或者, 为所述第一用户设备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第二方面, 或第一种实施方式至第五种实施方式中的任意一种, 在 第二方面的第六种实施方式中, 所述方法还包括:
第一用户设备与所述第二用户设备进行协商, 以使所述第二用户设备从 所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用户设 备。
第三方面, 本发明实施例提供一种用户设备协作通信方法, 包括: 第二用户设备接收网络设备发送的第一下行数据的第二部分, 所述第一 下行数据的第一部分由所述网络设备发送给第一用户设备;
所述第二用户设备将所述第一下行数据的第二部分转发给所述第一用户 设备。
结合第三方面, 在第三方面的第一种实施方式中, 所述第二用户设备接 收所述网络设备发送的第一下行数据的第二部分之前, 还包括:
所述第二用户设备接收所述网络设备发送的第二指示消息, 所述第二指 示消息用于指示所述第二用户设备将从所述网络设备接收的所述第一下行数 据的第二部分转发给所述第一用户设备。
结合第一种实施方式, 在第三方面的第二种实施方式中, 所述第二用户 设备接收所述网络设备发送的第一下行数据的第二部分之前, 还包括:
所述第二用户设备与所述第一用户设备进行协商, 以使所述第二用户设 备从所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用户 设备。
结合第三方面, 或第一种实施方式或第二种实施方式, 在第三方面的第 三种实施方式中, 所述第二用户设备接收所述网络设备发送的所述第一下行 数据的第二部分之前, 还包括:
所述第二用户设备接收所述网络设备发送的第一小区无线网络临时标识 C-RNTI;
所述第二用户设备根据所述第一 C-RNTI对所述第一下行数据的控制信 息进行解调。
结合第四种实施方式, 在第三方面的第五种实施方式中, 所述第二用户 设备为协作所述第一用户设备接收所述第一下行数据的所有用户设备中的主 用户设备, 则所述第二用户设备接收所述网络设备发送的所述第一下行数据 的第二部分之前, 还包括:
所述第二用户设备接收所述网络设备发送的第一 C-RNTI;
所述主用户设备根据所述第一 C-RNTI对所述第一下行数据的控制信息 进行解调。
结合第四种实施方式或第五种实施方式中, 在第三方面的第六种实施方 式中, 所述第一 C-RNTI为所述第一用户设备的 C-RNTI, 或者, 为所述第二 用户设备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第三方面, 或第一种实施方式至第六种实施方式中的任意一种, 在 第三方面的第七种实施方式中, 所述方法还包括:
所述第二用户设备接收所述网络设备发送的第三指示消息, 所述第三指 示消息还用于指示所述第二用户设备从所述网络设备接收第二下行数据中的 第一部分, 从所述第一用户设备接收所述第二下行数据的第二部分。
结合第七种实施方式, 在第三方面的第八种实施方式中, 所述第二用户 设备接收网络设备发送的第三指示消息之后, 还包括:
所述第二用户设备从所述网络设备接收第二下行数据中的第一部分, 从 所述第一用户设备接收所述第二下行数据的第二部分。
结合第七种实施方式或第八种实施方式, 在第三方面的第九种实施方式 中, 所述从所述第一用户设备接收所述第二下行数据的第二部分之前, 还包 括:
所述第二用户设备与所述第一用户设备进行协商, 以使所述第一用户设 备从所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设 备。
第四方面, 本发明实施例提供一种用户设备协作通信网络设备, 包括: 接收模块, 用于接收第一用户设备发送的协作请求;
确定模块, 用于根据接收模块接收的协作请求, 确定协作所述第一用户 设备接收第一下行数据的至少一个第二用户设备;
发送模块, 用于向所述第一用户设备发送第一指示消息, 所述第一指示 消息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中的 第一部分, 从第二用户设备接收所述第一下行数据的第二部分。
结合第四方面, 在第四方面的第一种实施方式中, 所述发送模块还用于: 向所述第二用户设备发送第二指示消息, 所述第二指示消息用于指示所述第 二用户设备将从所述网络设备接收的所述第一下行数据的第二部分转发给所 述第一用户设备。
结合第四方面或第一种实施方式, 在第四方面的第二种实施方式中, 所 述确定模块还用于:在所述接收模块接收第一用户设备发送的协作请求之后, 确定待发送所述第二用户设备的第二下行数据; 确定所述第一用户设备协作 所述第二用户设备接收第二下行数据; 所述发送模块还用于: 向所述第二用 户设备发送第三指示消息, 所述第三指示消息用于指示所述第二用户设备从 所述网络设备接收所述第二下行数据中的第一部分, 从所述第一用户设备接 收所述第二下行数据的第二部分。
结合第二种实施方式, 在第四方面的第三种实施方式中, 所述发送模块 还用于: 向所述第一用户设备发送第四指示消息, 所述第四指示消息用于指 示所述第一用户设备将从所述网络设备接收的所述第二下行数据的第二部分 转发给所述第二用户设备。
结合第二种实施方式, 在第四方面的第四种实施方式中, 所述确定模块 具体用于: 判断所述第二用户设备协作所述第一用户设备接收所述第一下行 数据并且所述第一用户设备协作所述第二用户设备接收所述第二下行数据情 况下,所述第一用户设备和所述第二用户设备的通信质量是否满足预设阈值; 若满足所述预设阈值, 则所述网络设备确定所述第一用户设备协作所述第二 用户设备接收第二下行数据。
结合第四方面, 或第一种实施方式至第四种实施方式中的任意一种, 在 第四方面的第五种实施方式中, 所述发送模块还用于: 在所述确定模块根据 所述协作请求, 确定协作所述第一用户设备接收第一下行数据的至少一个第 二用户设备之后, 向每个所述第二用户设备发送第一小区无线网络临时标识
C-RNTI, 以使每个所述第二用户设备根据所述第一 C-RNTI对所述第一下行 数据的控制信息进行解调; 或者, 向任意至少一个所述第二用户设备发送所 述第一 C-RNTI, 以使所有所述第二用户设备共享所述第一 C-RNTI。
结合第五种实施方式, 在第四方面的第六种实施方式中, 所述第一
C-RNTI 为所述第一用户设备的 C-RNTI , 或者, 为所述第二用户设备的
C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第二种实施方式, 在第四方面的第七种实施方式中, 所述发送模块 还用于: 在所述确定模块确定所述第一用户设备协作所述第二用户设备接收 第二下行数据之后, 向所述第一用户设备发送第二 C-RNTI, 以使所述第一用 户设备根据所述第二 C-RNTI对所述第二下行数据的控制信息进行解调。
结合第七种实施方式, 在第四方面的第八种实施方式中, 所述第二
C-RNTI 为所述第二用户设备的 C-RNTI , 或者, 为所述第一用户设备的
C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第四方面, 或第一种实施方式至第八种实施方式中的任意一种, 在 第四方面的第九种实施方式中, 所述第一下行数据的第一部分和所述第一下 行数据的第二部分相同, 或者, 所述第一下行数据的第一部分和所述第一下 行数据的第二部分不同。
第五方面, 本发明实施例提供一种用户设备, 包括:
发送模块, 用于向网络设备发送协作请求; 接收模块, 用于接收所述网络设备发送的第一指示消息, 所述第一指示 消息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中的 第一部分; 接收所述网络设备发送的第一指示消息, 所述第一指示消息用于 指示所述第一用户设备从所述网络设备接收所述第一下行数据中的第一部 分;
所述接收模块, 还用于接收所述网络设备发送的所述第一下行数据中的 第一部分, 从所述第二用户设备接收所述第一下行数据的第二部分。
结合第五方面, 在第五方面的第一种实施方式中, 所述接收模块还用于: 接收所述网络设备发送的第四指示消息, 所述第四指示消息还用于指示所述 第一用户设备将从所述网络设备接收的第二下行数据的第二部分转发给所述 第二用户设备。
结合第五方面, 在第五方面的第二种实施方式中, 还包括:
第一协商模块, 用于与所述第二用户设备进行协商, 以使所述第一用户 设备从所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设 备。
结合第一种实施方式或第二种实施方式, 在第五方面的第三种实施方式 中, 所述接收模块还用于: 在接收所述网络设备发送的第一指示消息之后, 接收所述网络设备发送的第二下行数据的第二部分; 所述发送模块还用于, 在所述接收模块接收所述网络设备发送的第二下行数据的第二部分后, 将所 述第二下行数据的第二部分发送给所述第二用户设备。
结合第三种实施方式, 在第五方面的第四种实施方式中, 所述接收模块 还用于: 在所述发送模块向网络设备发送协作请求之后, 接收所述网络设备 发送的第二小区无线网络临时标识 C-RNTI; 所述接收模块具体用于:在所述 接收模块接收所述网络设备发送的第二 C-RNTI 后, 根据所述第二 C-RNTI 对所述第二下行数据的控制信息进行解调。
结合第四种实施方式, 在第五方面的第五种实施方式中, 所述第二 C-RNTI 为所述第二用户设备的 C-RNTI , 或者, 为所述第一用户设备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第五方面, 或第一种实施方式至第五种实施方式中的任意一种, 在 第五方面的第六种实施方式中, 还包括: 第二协商模块, 用于与所述第二用户设备进行协商, 以使所述第二用户 设备从所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用 户设备。
第六方面, 本发明实施例提供一种用户设备, 包括:
接收模块, 用于接收网络设备发送的第一下行数据的第二部分, 所述第 一下行数据的第一部分由所述网络设备发送给第一用户设备;
发送模块, 用于将所述第一下行数据的第二部分转发给所述第一用户设 备。
结合第六方面, 在第六方面的第一种实施方式中, 所述接收模块还用于: 接收网络设备发送的第二指示消息, 所述第二指示消息用于指示所述第二用 户设备将从所述网络设备接收的第一下行数据的第二部分转发给所述第一用 户设备。
结合第一种实施方式, 在第六方面的第二种实施方式中, 还包括: 第一协商模块, 用于与所述第一用户设备进行协商, 以使所述第二用户 设备从所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用 户设备。
结合第六方面, 或第一种实施方式或第二种实施方式, 在第六方面的第 三种实施方式中, 所述接收模块还用于: 在接收所述网络设备发送的所述第 一下行数据的第二部分之前, 接收所述网络设备发送的第一小区无线网络临 时标识 C-RNTI,根据所述第一 C-RNTI对所述第一下行数据的控制信息进行 解调。
结合第四种实施方式, 在第六方面的第五种实施方式中, 所述第一 C-RNTI 为所述第一用户设备的 C-RNTI , 或者, 为所述第二用户设备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
结合第五种实施方式中, 在第六方面的第六种实施方式中, 所述接收模 块还用于: 接收所述网络设备发送的第三指示消息, 所述第三指示消息还用 于指示所述第二用户设备从所述网络设备接收第二下行数据中的第一部分, 从所述第一用户设备接收所述第二下行数据的第二部分。
结合第三方面, 或第一种实施方式至第六种实施方式中的任意一种, 在 第三方面的第七种实施方式中, 在所述接收模块接收网络设备发送的第三指 示消息之后, 所述接收模块还用于: 从所述网络设备接收第二下行数据中的 第一部分, 从所述第一用户设备接收所述第二下行数据的第二部分。
结合第六种实施方式或第七种实施方式, 在第八种实施方式中, 还包括: 第二协商模块, 用于与所述第一用户设备进行协商, 以使所述第一用户设备 从所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设备。
第七方面, 本发明实施例提供一种网络设备, 包括: 处理器和存储器, 所述存储器存储执行指令, 当所述网络设备运行时, 所述处理器与所述存 储器之间通信, 所述处理器执行所述执行指令使得所述基站执行如第一方 面的方法。
第八方面, 本发明实施例提供一种用户设备, 包括处理器和存储器, 所述存储器存储执行指令, 当所述用户设备运行时, 所述处理器与所述存 储器之间通信, 所述处理器执行所述执行指令使得所述用户设备执行如第 二方面的方法。
第九方面, 本发明实施例提供一种用户设备, 包括处理器和存储器, 所述存储器存储执行指令, 当所述用户设备运行时, 所述处理器与所述存 储器之间通信, 所述处理器执行所述执行指令使得所述用户设备执行如第 三方面的方法。
第十方面, 本发明实施例还提供一种用户设备协作通信系统, 包括本 发明第四方面提供的网络设备, 第五方面提供的第一用户设备, 以及第六 方面提供的第二用户设备。
第十一方面, 本发明实施例还提供一种用户设备协作通信系统, 包括 本发明第七方面提供的网络设备, 第八方面提供的第一用户设备, 以及第 九方面提供的第二用户设备。
本发明实施例提供的用户设备协作通信方法、 装置及系统, 网络设备 接收到第一用户设备的协作请求后, 可以为该用户设备确定协作接收下行 数据的其他至少一个第二用户设备, 并通过指示消息指示第一用户设备可 以分别通过网络设备和第二用户设备来接收下行数据。从而在不增加用户 设备物理天线的前提下,能够提升用户设备接收数据的质量,降低误码率, 获得分集增益; 还可以提升信道容量, 达到 "空分复用" 的有益效果, 获 得复用增益。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图做一简单地介绍, 显而易见 地, 下面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员 来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的 附图。
图 1为本发明提供的用户设备协作通信方法一个实施例的流程图; 图 2为本发明提供的用户设备协作通信方法另一个实施例的流程图; 图 3为本发明提供的用户设备协作通信方法又一个实施例的流程图; 图 4提供了第二用户设备协作第一用户设备接收第一下行数据, 而第一 用设备并不协作第二用户设备的具体实施方式的示意图;
图 5提供了第二用户设备协作第一用户设备接收第一下行数据, 同时第 一用户设备协作第二用户设备接收第二下行数据的具体实施方式的示意图; 图 6为本发明提供的网络设备一个实施例的结构示意图;
图 7为本发明提供的用户设备一个实施例的结构示意图;
图 8为本发明提供的用户设备另一个实施例的结构示意图;
图 9为本发明提供的用户设备又一个实施例的结构示意图;
图 10为本发明提供的用户设备另一个实施例的结构示意图; 图 11为本发明提供的网络设备另一个实施例的结构示意图; 图 12为本发明提供的用户设备又一个实施例的结构示意图; 图 13为本发明提供的用户设备再一个实施例的结构示意图。 具体实施方式
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做出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
本文中描述的技术可用于各种通信系统, 例如当前 2G, 3G通信系统 和下一代通信系统, 例如全球移动通信系统 (GSM, Global System for Mobile communications ) , 石马分多址 ( CDMA, Code Division Multiple Access ) 系统, 时分多址 (TDMA, Time Division Multiple Access ) 系统, 宽带码分多址 (WCDMA, Wideband Code Division Multiple Access Wireless ) , 步员分多址 (FDMA, Frequency Division Multiple Addressing ) 系统, 正交频分多址 ( OFDM A, Orthogonal Frequency-Division Multiple Access )系统,单载波 FDMA ( SC-FDMA )系统,通用分组无线业务(GPRS , General Packet Radio Service )系统,长期演进 ( LTE, Long Term Evolution) 系统, 以及其他此类通信系统。
本申请中涉及的用户设备, 可以是无线终端也可以是有线终端, 无线 终端可以是指向用户提供语音和 /或数据连通性的设备,具有无线连接功能 的手持式设备、 或连接到无线调制解调器的其他处理设备。 无线终端可以 经无线接入网 (例如, RAN, Radio Access Network)与一个或多个核心网 进行通信, 无线终端可以是移动终端, 如移动电话 (或称为"蜂窝"电话) 和具有移动终端的计算机, 例如, 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, 它们与无线接入网交换语言和 /或数据。例 如, 个人通信业务 (PCS , Personal Communication Service ) 电话、 无绳电 话、会话发起协议(SIP )话机、无线本地环路(WLL, Wireless Local Loop ) 站、 个人数字助理 (PDA, Personal Digital Assistant) 等设备。 无线终端 也可以称为系统、订户单元(Subscriber Unit)、订户站(Subscriber Station ), 移动站 ( Mobile Station) 、 移动台 ( Mobile ) 、 远程站 ( Remote Station ) 、 接入点(Access Point)、远程终端( Remote Terminal )、接入终端(Access Terminal ) 、 用户终端 (User Terminal) 、 用户代理 (User Agent) 、 用户 设备 (User Device ) 、 或用户装备 (User Equipment) 。
本申请中涉及的网络设备,可以是例如:基站、无线网络控制器( Radio
Network Controller, RNC ) 等。
基站 (例如, 接入点) 可以是 GSM或 CDMA中的基站 (BTS, Base Transceiver Station) , 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 ) , 本申请并不限定。 图 1为本发明提供的用户设备协作通信方法一个实施例的流程图, 如 图 1所示, 本实施例的方法可以包括:
步骤 101、 网络设备接收第一用户设备发送的协作请求。
步骤 102、 网络设备根据协作请求, 确定协作第一用户设备接收第一下 行数据的至少一个第二用户设备。
步骤 103、 网络设备向第一用户设备发送第一指示消息, 第一指示消息 用于指示第一用户设备从网络设备接收第一下行数据中的第一部分, 从第二 用户设备接收第一下行数据的第二部分。
其中, 协作请求中可以携带第一用户设备的标识, 以在网络中唯一表示 第一用户设备。 此外, 协作请求还可以携带第一用户设备和第二用户设备之 间链路质量的描述信息等参数。
可选的, 如果下行链路质量不佳, 导致第一用户设备从网络设备接收下 行数据的误码率比预定值高, 此时第一下行数据的第一部分和第二部分可以 相同; 如果下行链路质量较好, 使得第一用户设备从网络设备接收下行数据 的误码率比预定值低, 此时第一下行数据的第一部分和第二部分可以不同。
在本发明实施例中,协作第一用户设备接收第一下行数据的第二用户设 备可以为一个也可以为多个。 网络设备确定协作第一用户设备接收第一下行 数据的第二用户设备时, 首先, 网络设备可以根据之前第一用户设备或者第 二用户设备上报的第一、 第二用户设备之间的链路质量信息、 第一用户设备 与网络设备之间的链路质量信息, 以及第二用户设备与网络设备之间的链路 质量信息, 判断第二用户设备协作第一用户设备是否能为第一用户设备带来 有益效果, 例如能否为第一用户设备带来复用增益或者分集增益。 如果有益 效果达不到预定值, 网络设备可以不选择该第二用户设备, 而选择另外的第 二用户设备来协作第一用户设备。
网络设备在确定用于协作第一用户设备的第二用户设备后,可根据第一、 第二用户设备链路间的质量, 调整速率传输等级。 例如, 在第一、 第二用户 设备链路间的质量不佳时, 第二用户设备协作第一用户设备接收数据时的速 率会受到限制, 此时网络设备发送第一下行数据的第一、 第二部分的速率也 应该降低, 否则第二用户设备在协作第一用户设备时, 数据无法及时处理、 及时发送, 最终导致无法正常协作。 可以为网络设备建立 "用户设备间链路 质量一用户设备间传输速率——网络设备数据发送速率——网络设备数据 发送等级" 映射表, 网络设备可依据该映射表选择合适的速率传输等级。
网络设备可以在发送的第一指示消息中携带第二用户设备的标识, 进一 步的, 还可以携带第二用户设备协作第一用户设备的起始时间等信息, 以使 第二用户设备能够更加精确的协助进行下行数据的接收。
作为一种可行的实施方式, 网络设备确定第二用户设备来协作第一用户 设备之后, 可以向第二用户设备发送第二指示消息, 第二指示消息用于指示 第二用户设备将从网络设备接收的第一下行数据的第二部分转发给第一用户 设备。
作为另一种可行的实施方式, 第一用户设备还可以预先与第二用户设备 进行协商, 以使第二用户设备从网络设备接收第一下行数据的第二部分, 并 转发给第一用户设备。
可选的, 网络设备接收第一用户设备发送的协作请求之后, 如果网络设 备确定第二用户设备具有待发送的第二下行数据。 则网络设备还可以进一步 确定第一用户设备协作第二用户设备接收第二下行数据。 在该实施场景下, 网络设备还可以向第二用户设备发送第三指示消息来用于指示第二用户设备 从网络设备接收第二下行数据中的第一部分, 从第一用户设备接收第二下行 数据的第二部分。 需要说明的是, 第二指示消息和第三指示消息可以是一条 消息, 也就是说, 网络设备在指示第二设备将从网络设备接收的第一下行数 据的第二部分转发给第一用户设备的同时, 还可以指示第二用户设备从网络 设备接收第二下行数据中的第一部分, 从第一用户设备接收第二下行数据的 第二部分。
与第二用户设备协助第一用户设备类似的, 一种可行的实施方式, 在第 一用户设备协助第二用户设备的场景中, 网络设备还可以向第一用户设备发 送第四指示消息, 指示第一用户设备将从网络设备接收的第二下行数据的第 二部分转发给第二用户设备。 另一种可行的实施方式, 第一用户设备还可以 和第二用户设备预先协商, 以使第一用户设备从网络设备接收第二下行数据 的第二部分并转发给第二用户设备。
需要说明的是, 第一指示消息和第四指示消息也可以是一条消息, 也就 是说, 网络设备在指示第一设备将从网络设备接收的第二下行数据的第二部 分转发给第二用户设备的同时, 还可以指示第一用户设备从网络设备接收第 一下行数据中的第一部分, 从第二用户设备接收第一下行数据的第二部分。
具体的, 网络设备可以判断第二用户设备协作第一用户设备接收第一下 行数据并且第一用户设备协作第二用户设备接收第二下行数据情况下, 第一 用户设备和第二用户设备的通信质量是否满足预设阈值, 若满足预设阈值, 则网络设备可以确定第一用户设备协作第二用户设备接收第二下行数据。 从 而可以实现第二用户设备获得复用增益或者分集增益。
需要说明的是, 网络设备可以根据之前第一用户设备或者第二用户设备 上报的第一、 第二用户设备之间的链路质量信息、 第一用户设备与网络设备 之间的链路质量信息, 以及第二用户设备与网络设备之间的链路质量信息, 判断第一用户设备协作第二用户设备, 并且第二用户设备协作第一用户设备 后, 对第一、 第二用户设备的通信质量产生的影响。 如果第一用户设备和第 二用户设备中任意一个用户设备的通信质量, 因为第一用户设备协作第二用 户设备, 并且第二用户设备协作第一用户设备而不满足预设阈值, 或者达不 到预定的复用增益或者分集增益效果, 则第一用户设备和第二用户设备可以 不进行协作通信。 在该实施场景下, 网络设备可以改变协作关系, 例如解除 第一用户设备对第二用户设备的协作, 或者解除第二用户设备对第一用户设 备的协作, 或者解除上述两种协作。
可选的, 在上述实施例的基础上, 网络设备根据协作请求, 确定协作第 一用户设备接收第一下行数据的至少一个第二用户设备之后, 网络设备还可 以向每个第二用户设备发送第一小区无线网络临时标识 C-RNTI,以使每个第 二用户设备根据第一 C-RNTI对第一下行数据的控制信息进行解调, 或者, 网络设备向任意至少一个第二用户设备发送第一 C-RNTI,以使所有第二用户 设备共享第一 C-RNTI。
进一步的, 第二用户设备接收第一 C-RNTI后, 可以对第一用户设备的 物理下行控制信道 PDCCH进行解调, 获取第一用户设备的控制信息, 以便 第二用户设备向第一用户设备发送第一下行数据的第二部分。 例如, 解调第 二用户设备的 PDCCH后, 第二用户设备可以获知第一下行数据的第二部分 所占用的时频资源块, 获知第一用户设备的接收模式 (例如是空分复用还是 发射分集) , 获知非连续接收 DRX配置等控制信息。 必要时, 网络设备可调 整第一用户设备或第二用户设备的配置参数, 使相关配置参数保持一致 (例 如寻呼组保持一致, DRX保持一致、反馈周期 feedback period保持一致等), 以实现第一用户设备和第二用户设备之间的高效协作。 第一用户设备和第二 用户设备之间的通信链路所用的频率可以是带外频率, 一个具体的通信方式 可以是,例如,通过终端间直接通信 D2D协议进行通信。其中,第一 C-RNTI 可以为第一用户设备的 C-RNTI, 或者, 也可以为第二用户设备的 C-RNTI, 或者, 还可以为预先设定的 C-RNTI。
本实施例中, 基站对控制信道的加扰可以使用第一用户设备的 C-RNTI, 或者第二用户设备的 C-RNTI, 或者另一个预定的 C-RNTI, 那么, 与之对应, 基站发送给第二用户设备的第一 C-RNTI 应该分别为第一用户设备的 C-RNTI, 或者第二用户设备的 C-RNTI, 或者另一个预定的 C-RNTI。
本实施例提供的方法, 网络设备接收到第一用户设备的协作请求后, 可以为该用户设备确定协作接收下行数据的其他至少一个第二用户设备, 并通过指示消息指示第一用户设备可以分别通过网络设备和第二用户设 备来接收下行数据。 从而在不增加用户设备物理天线的前提下, 能够提升 用户设备接收数据的质量, 降低误码率, 获得分集增益; 还可以提升信道 容量, 达到 "空分复用" 的有益效果, 获得复用增益。
图 2为本发明提供的用户设备协作通信方法另一个实施例的流程图, 如图 2所示, 本实施例的方法可以包括:
步骤 201、 第一用户设备向网络设备发送协作请求。
步骤 202、 第一用户设备接收网络设备发送的第一指示消息, 第一指示 消息用于指示第一用户设备从网络设备接收第一下行数据中的第一部分, 从 第二用户设备接收第一下行数据的第二部分。
步骤 203、 第一用户设备接收网络设备发送的第一下行数据中的第一部 分, 从第二用户设备接收第一下行数据的第二部分。
进一步的, 第一用户设备还可以接收网络设备发送的第四指示消息, 用 于指示第一用户设备将从网络设备接收的第二下行数据的第二部分转发给第 二用户设备。 或者, 第一用户设备还可以和第二用户设备预先协商, 以使第 一用户设备从网络设备接收第二下行数据的第二部分并转发给第二用户设 备。 需要说明的是, 第一指示消息和第四指示消息也可以是一条消息, 也就 是说, 网络设备在指示第一设备将从网络设备接收的第二下行数据的第二部 分转发给第二用户设备的同时, 还可以指示第一用户设备从网络设备接收第 一下行数据中的第一部分, 从第二用户设备接收第一下行数据的第二部分。
在该实施场景下, 第一用户设备接收网络设备发送的第二下行数据的第 二部分之后, 并将第二下行数据的第二部分发送给第二用户设备。
进一步的, 在第二用户设备协作第一用户设备时, 如果网络设备判断出 第二用户设备也在接收由网络设备发送的下行用户数据, 那么, 第一用户设 备同时还能协作第二用户设备,使第二用户设备获得复用增益或者分集增益。
进一步的, 第一用户设备向网络设备发送协作请求之后, 第一用户设备 还可以接收网络设备发送的第二 C-RNTI。 第一用户设备可以根据第二 C-RNTI对第二下行数据的控制信息进行解调。
第一用户设备使用第二 C-RNTI对第二用户设备的 PDCCH进行解码,获 取第二用户设备的控制信息, 以便第一用户设备向第二用户设备发送第二下 行数据的第二部分。
进一步的, 第二 C-RNTI可以为第二用户设备的 C-RNTI, 或者, 也可 以为第一用户设备的 C-RNTI, 或者, 还可以为预先设定的 C-RNTI。
本实施例提供的方法, 第一用户设备可以向网络设备发送协作请求, 网络设备可以确定协作接收下行数据的其他至少一个用户设备, 并通过指 示消息指示改用户设备可以分别通过网络设备和其他用户设备来接收下 行数据。 从而在不增加用户设备物理天线的前提下, 能够提升用户设备接 收数据的质量, 降低误码率, 获得分集增益; 还可以提升信道容量, 达到 "空分复用" 的有益效果, 获得复用增益。 图 3为本发明提供的用户设备协作通信方法又一个实施例的流程图, 如图 3所示, 本实施例的方法可以包括:
步骤 301、 第二用户设备接收网络设备发送的第一下行数据的第二部分 第一下行数据的第一部分由网络设备发送给第一用户设备。
步骤 302、 第二用户设备将第一下行数据的第二部分转发给第一用户设 备。 作为一种可行的实施方式, 网络设备确定第二用户设备来协作第一用户 设备之后, 可以向第二用户设备发送第二指示消息, 第二指示消息用于指示 第二用户设备将从网络设备接收的第一下行数据的第二部分转发给第一用户 设备。 作为另一种可行的实施方式, 第一用户设备还可以预先与第二用户设 备进行协商, 以使第二用户设备从网络设备接收第一下行数据的第二部分, 并转发给第一用户设备。
进一步的, 第二用户设备接收网络设备发送的第一下行数据的第二部分 之前,第二用户设备还可以接收网络设备发送的第一 C-RNTI,第二用户设备 可以根据第一 C-RNTI对第一下行数据的控制信息进行解调。
第二用户设备使用第一 C-RNTI对第一用户设备的 PDCCH进行解码,获 取第一用户设备的控制信息, 以便第二用户设备向第一用户设备发送第一下 行数据的第二部分。
进一步的, 第二用户设备为协作第一用户设备接收第一下行数据的所有 用户设备中的主用户设备, 则第二用户设备接收网络设备发送的第一下行数 据的第二部分之前, 第二用户设备还可以接收网络设备发送的第一 C-RNTI。 主用户设备可以根据第一 C-RNTI对第一下行数据的控制信息进行解调。 可 选的, 主用户设备可以是第二用户设备中的一个或者多个。 当主用户设备是 第二用户设备中的一个时,只有这一个主用户设备对第一用户设备的 PDCCH 进行解调, 这一个主用户设备将解调获得的第一用户设备的控制信息共享给 第二用户设备中的其他用户设备。当主用户设备是第二用户设备中的多个时, 多个主用户设备都需要对第一用户设备的 PDCCH进行解调, 如果多个主用 户设备中的部分主用户设备没有收到网络设备发送的第一 C-RNTI,则收到第 一 C-RNTI的主用户设备需将第一 C-RNTI共享给没有收到第一 C-RNTI的主 用户设备。
进一步的, 第一 C-RNTI可以为第一用户设备的 C-RNTI, 或者, 还可 以为第二用户设备的 C-RNTI, 或者, 还可以为预先设定的 C-RNTI。
可选的, 第二用户设备可以接收网络设备发送的第三指示消息, 第三指 示消息还用于指示第二用户设备从网络设备接收第二下行数据中的第一部 分, 从第一用户设备接收第二下行数据的第二部分。 或者, 第二 UE与第一 UE进行协商,以使第一用户设备从网络设备接收第二下行数据的第二部分并 转发给第二用户设备。
本实施例提供的方法, 网络设备接收到第一用户设备的协作请求后, 可以为该用户设备确定协作接收下行数据的其他至少一个第二用户设备, 并通过指示消息指示第一用户设备可以分别通过网络设备和第二用户设 备来接收下行数据。 从而在不增加用户设备物理天线的前提下, 能够提升 用户设备接收数据的质量, 降低误码率, 获得分集增益; 还可以提升信道 容量, 达到 "空分复用" 的有益效果, 获得复用增益。 以下以两个具体例子对本发明提供的用户设备协作通信方法进行说明。 图 4提供了第二用户设备协作第一用户设备接收第一下行数据, 而第一用户 设备并不协作第二用户设备的具体实施方式的示意图, 如图 4所示, 网络设 备,例如是基站 BS_0,需要将信息 SO (可以为多层信息,即 S0=[s0,sl sp]T) 发送给第一用户设备 UE_0。 由于无线下行数据通过空间传播特性,第二用户 设备 UE_1可以收到来自 BS_0的下行数据 S0。 可以用如下公式描述第一用 户设备 UE_0接收下行数据的系统模型:
Y0 = H0 . P1 - S0 +I0 +N0
其中 Y0表示第一用户设备 UE_0接收到的下行数据, Y1表示用第二户 设备 UE_1接收到的下行数据。 Hj表示基站 BS_0和用户设备 j之间的空间信 道, P1为预编码矩阵 (或向量) , 10和 II分别表示两个用户设备接收到的 除了 SO之外的干扰下行数据, Nj表示用户设备 j接收到的噪声信号。在用户 设备间不存在协作的情况下, 对于 UE_1而言, Hi ' Pi 'S。是无用的 (干扰的) 下行数据, 无法利用, 也无法提供给第一用户设备 UE_0使用。
通过协作通信,第二用户设备 UE_1可以将自己接收到的下行数据 Y1共 享给对方。在第一用户设备 UE_0收到第二用户设备 UE_1共享的信息 Y1后, 可以通过自己的解调处理中的信道估计, 获得 ^ ^的信息, 从而根据获得的 信道信息得到如下接收数据:
Figure imgf000020_0001
Figure imgf000020_0002
第一用户设备接收端采用的接收机为 wo, 则可以获得 so的估计值: S0 = W0 -Y 上述方案适用于第二用户设备协作第一用户设备时, 第一用户设备对接 收数据的处理方式。 以下方案适用于第二用户设备协作第一用户设备, 并且 第一用户设备协作第二用户设备时, 用户设备对接收数据的处理方式。 本实 施例主要适用于获得分集增益的实施场景。 在通信链路质量不佳的场景下, 用户设备可以通过从不同链路接收相同的数据消息, 从而提升用户设备接 收数据的质量, 降低误码率, 达到 "发射分集" 的有益效果, 获得分集增 益。 单向协作模式时, 例如第二用户设备协作第一用户设备, 第一用户设 备可以获得分集增益; 双向协作模式时, 例如第二用户设备协作第一用户 设备, 并且第一用户设备协作第二用户设备, 第一、 第二用户设备都可以 获得分集增益。
图 5提供了第二用户设备协作第一用户设备接收第一下行数据, 同时第 一用户设备协作第二用户设备接收第二下行数据的具体实施方式的示意图, 如图 5所示, 基站 BS_0以两个用户设备的联合信道进行预编码, 在同一时 频资源块发送多个数据流, 在这些数据流中, 部分数据流 (SO) 的目标用户 设备是第一用户设备 UE0, 部分数据流 (S1)的目标用户设备是第二用户设备 UEl o 通过信息共享, 两个用户设备接收到的数据为:
Figure imgf000021_0001
Figure imgf000021_0003
其中 PI和 P2为 SO和 SI的预编码矩阵。 基站 BS_0可以通过某些准则 设计预编码矩阵。如通过基于 SVD分解的方式获取预编码矩阵可以使得数据 吞吐率最大化。 设合并的信道维度为 ΝχΜ, 可以分解为:
: υ·∑·ν
Figure imgf000021_0002
其中 U,∑,V的维度分别为 ΝχΝ,ΝχΜ,ΜχΜ。 则 P1和 Ρ2可以从 V的最前 面的行中选取, 如 V=[V1,V2 "VM],贝 lj Pl=[ Vl,V2-Vn]H和 Ρ2=[νη+1,··· Vk]H,k<=min(M,N)。
第一用户设备 UE_0接收端采用的接收机为 W0,则可以获得 SO的估计值:
S0 = W0 -Y 第二用户设备 UE_1接收端采用的接收机为 W1 ,则可以获得 S1的估计值: s^w, Y
本实施例主要适用于获得复用增益的实施场景。 在通信链路质量好时, 用户设备通过从不同链路接收不同的数据消息, 提升信道容量, 达到 "空 分复用" 的有益效果, 获得复用增益。 单向协作模式时, 例如第二用户设 备协作第一用户设备,第一用户设备可以获得复用增益;双向协作模式时, 例如第二用户设备协作第一用户设备, 并且第一用户设备协作第二用户设 备, 第一、 第二用户设备都可以获得复用增益。 图 4和图 5提供的用户设备对接收数据的处理方式, 作为可选的方式 可适用于本发明各个实施例中, 还有其他处理方式, 本发明不在此限制。 图 6为本发明提供的网络设备一个实施例的结构示意图, 该网络设备 包括:
接收模块 601, 用于接收第一用户设备发送的协作请求;
确定模块 602, 用于根据接收模块接收的协作请求, 确定协作第一用户 设备接收第一下行数据的至少一个第二用户设备;
发送模块 603, 用于向第一用户设备发送第一指示消息, 第一指示消息 用于指示第一用户设备从网络设备接收第一下行数据中的第一部分, 从第二 用户设备接收第一下行数据的第二部分。
可选的, 发送模块 603, 还可以用于向第二用户设备发送第二指示消息, 第二指示消息用于指示第二用户设备将从网络设备接收的第一下行数据的第 二部分转发给第一用户设备。
可选的, 确定模块 602还用于: 在接收模块接收第一用户设备发送的协 作请求之后, 确定待发送第二用户设备的第二下行数据; 确定第一用户设备 协作第二用户设备接收第二下行数据; 发送模块 603还可以用于向第二用户 设备发送第三指示消息, 第三指示消息用于指示第二用户设备从网络设备接 收第二下行数据中的第一部分, 从第一用户设备接收第二下行数据的第二部 分。
可选的, 发送模块 603还可以用于向第一用户设备发送第四指示消息, 第四指示消息用于指示第一用户设备将从网络设备接收的第二下行数据的第 二部分转发给第二用户设备。
可选的, 确定模块 602具体用于: 判断第二用户设备协作第一用户设备 接收第一下行数据并且第一用户设备协作第二用户设备接收第二下行数据情 况下, 第一用户设备和第二用户设备的通信质量是否满足预设阈值; 若满足 预设阈值, 则网络设备确定第一用户设备协作第二用户设备接收第二下行数 据。
可选的, 发送模块 603还用于: 在确定模块根据协作请求, 确定协作第 一用户设备接收第一下行数据的至少一个第二用户设备之后, 向每个第二用 户设备发送第一 C-RNTI, 以使每个第二用户设备根据第一 C-RNTI对第一下 行数据的控制信息进行解调; 或者, 向任意至少一个第二用户设备发送第一 C-RNTI, 以使所有第二用户设备共享第一 C-RNTI。
可选的, 第一 C-RNTI为第一用户设备的 C-RNTI, 或者, 为第二用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
可选的, 发送模块 603还用于: 在确定模块确定第一用户设备协作第二 用户设备接收第二下行数据之后, 向第一用户设备发送第二 C-RNTI, 以使第 一用户设备根据第二 C-RNTI对第二下行数据的控制信息进行解调。
可选的, 第二 C-RNTI为第二用户设备的 C-RNTI, 或者, 为第一用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
可选的, 第一下行数据的第一部分和第一下行数据的第二部分相同, 或 者, 第一下行数据的第一部分和第一下行数据的第二部分不同。
本发明实施例提供的网络设备, 与本发明图 1所提供的方法实施例相 对应, 为方法实施例的执行主体, 因此, 该网络设备执行用户设备协作通 信方法的具体过程可参见方法实施例, 在此不再赘述。
本实施例提供的网络设备, 在接收到第一用户设备的协作请求后, 可 以为该用户设备确定协作接收下行数据的其他至少一个第二用户设备, 并 通过指示消息指示第一用户设备可以分别通过网络设备和第二用户设备 来接收下行数据。 从而在不增加用户设备物理天线的前提下, 能够提升用 户设备接收数据的质量, 降低误码率, 获得分集增益; 还可以提升信道容 量, 达到 "空分复用" 的有益效果, 获得复用增益。 图 7为本发明提供的用户设备一个实施例的结构示意图, 该用户设备 包括:
发送模块 701, 用于向网络设备发送协作请求;
接收模块 702, 用于接收网络设备发送的第一指示消息, 第一指示消息 用于指示第一用户设备从网络设备接收第一下行数据中的第一部分; 接收网 络设备发送的第一指示消息, 第一指示消息用于指示第一用户设备从网络设 备接收第一下行数据中的第一部分。
接收模块 702, 用于接收网络设备发送的第一下行数据中的第一部分, 从第二用户设备接收第一下行数据的第二部分。
可选的, 接收模块 702还用于: 接收网络设备发送的第四指示消息, 第 四指示消息还用于指示第一用户设备将从网络设备接收的第二下行数据的第 二部分转发给第二用户设备。
如图 8所示, 可选的, 该用户设备还可以包括:
第一协商模块 703,用于与第二 UE进行协商, 以使第一用户设备从网络 设备接收第二下行数据的第二部分并转发给第二用户设备。
可选的, 接收模块 702还可以用于: 在接收网络设备发送的第一指示消 息之后, 接收网络设备发送的第二下行数据的第二部分; 发送模块 701还可 以用于, 在接收模块接收网络设备发送的第二下行数据的第二部分后, 将第 二下行数据的第二部分发送给第二用户设备。
可选的, 接收模块 702还可以用于: 在发送模块向网络设备发送协作请 求之后, 接收网络设备发送的第二小区无线网络临时标识 C-RNTI; 接收模块 702可以具体用于: 在接收模块接收网络设备发送的第二 C-RNTI后, 根据第 二 C-RNTI对第二下行数据的控制信息进行解调。
可选的, 第二 C-RNTI为第二用户设备的 C-RNTI, 或者, 为第一用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
可选的, 用户设备还可以包括:
第二协商模块 704,用于与第二 UE进行协商, 以使第二用户设备从网络 设备接收第一下行数据的第二部分并转发给第一用户设备。
本发明实施例提供的用户设备, 与本发明图 2所提供的方法实施例相 对应, 为方法实施例的执行主体, 因此, 该用户设备执行用户设备协作通 信方法的具体过程可参见方法实施例, 在此不再赘述。
本实施例提供的用户设备, 可以向网络设备发送协作请求, 网络设备 可以确定协作接收下行数据的至少一个其他用户设备, 并通过指示消息指 示该用户设备可以分别通过网络设备和第二用户设备来接收下行数据。 从 而在不增加用户设备物理天线的前提下, 能够提升用户设备接收数据的质 量, 降低误码率, 获得分集增益; 还可以提升信道容量, 达到 "空分复用" 的有益效果, 获得复用增益。
图 9为本发明提供的用户设备另一个实施例的结构示意图, 该用户设 备包括:
接收模块 801, 用于接收网络设备发送的第一下行数据的第二部分, 第 一下行数据的第一部分由网络设备发送给第一用户设备;
发送模块 802, 用于将第一下行数据的第二部分转发给第一用户设备。 可选的, 接收模块 801还用于, 接收网络设备发送的第二指示消息, 第 二指示消息用于指示第二用户设备将从网络设备接收的第一下行数据的第二 部分转发给第一用户设备。
如图 10所示, 该用户设备还可以包括:
第一协商模块 803,用于与第一 UE进行协商, 以使第二用户设备从网络 设备接收第一下行数据的第二部分并转发给第一用户设备。
可选的, 接收模块 801还可以用于: 在接收网络设备发送的第一下行数 据的第二部分之前, 接收网络设备发送的第一小区无线网络临时标识 C-RNTI, 根据第一 C-RNTI对第一下行数据的控制信息进行解调。
可选的, 第一 C-RNTI为第一用户设备的 C-RNTI, 或者, 为第二用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
可选的, 接收模块 801还可以用于: 接收网络设备发送的第三指示消息, 第三指示消息还用于指示第二用户设备从网络设备接收第二下行数据中的第 一部分, 从第一用户设备接收第二下行数据的第二部分。
可选的, 在接收模块 801接收网络设备发送的第三指示消息之后, 接收 模块还用于: 从网络设备接收第二下行数据中的第一部分, 从第一用户设备 接收第二下行数据的第二部分。
可选的, 该用户设备还可以包括: 第二协商模块 804, 用于与第一 UE进 行协商, 以使第一用户设备从网络设备接收第二下行数据的第二部分并转发 给第二用户设备。
本发明实施例提供的用户设备, 与本发明图 3所提供的方法实施例相 对应, 为方法实施例的执行主体, 因此, 该用户设备执行用户设备协作通 信方法的具体过程可参见方法实施例, 在此不再赘述。
本实施例提供的用户设备为协助设备, 网络设备接收到第一用户设备 的协作请求后, 可以为该用户设备确定协作接收下行数据的其他至少一个 第二用户设备, 并通过指示消息指示第一用户设备可以分别通过网络设备 和第二用户设备来接收下行数据。 从而在不增加用户设备物理天线的前提 下, 能够提升用户设备接收数据的质量, 降低误码率, 获得分集增益; 还 可以提升信道容量, 达到 "空分复用" 的有益效果, 获得复用增益。
图 11为本发明提供的网络设备另一个实施例的结构示意图, 该网络 设备包括:
如图 11所示, 本实施例提供的网络设备 90包括处理器 901和存储器 902。 网络设备 90还可以包括发射器 903、 接收器 904。 发射器 903和接 收器 904可以和处理器 901相连。其中,发射器 903用于发送数据或信息, 接收器 904用于接收数据或信息, 存储器 902存储执行指令, 当网络设备 90运行时, 处理器 901与存储器 902之间通信, 处理器 901调用存储器 902中的执行指令, 用于执行以下操作:
接收第一用户设备发送的协作请求; 根据协作请求, 确定协作第一用户 设备接收第一下行数据的至少一个第二用户设备; 向第一用户设备发送第一 指示消息, 第一指示消息用于指示第一用户设备从网络设备接收第一下行数 据中的第一部分, 从第二用户设备接收第一下行数据的第二部分。
可选的, 确定协作第一用户设备接收第一下行数据的至少一个第二用户 设备之后, 还可以: 向第二用户设备发送第二指示消息, 第二指示消息用于 指示第二用户设备将从网络设备接收的第一下行数据的第二部分转发给第一 用户设备。
可选的, 还可以执行: 确定待发送第二用户设备的第二下行数据; 确定 第一用户设备协作第二用户设备接收第二下行数据; 向第二用户设备发送第 三指示消息, 第三指示消息用于指示第二用户设备从网络设备接收第二下行 数据中的第一部分, 从第一用户设备接收第二下行数据的第二部分。
可选的, 确定第一用户设备协作第二用户设备接收第二下行数据之后, 还可以: 向第一用户设备发送第四指示消息, 第四指示消息用于指示第一用 户设备将从网络设备接收的第二下行数据的第二部分转发给第二用户设备。
可选的, 执行确定第一用户设备协作第二用户设备接收第二下行数据, 可以具体是: 判断第二用户设备协作第一用户设备接收第一下行数据并且第 一用户设备协作第二用户设备接收第二下行数据情况下, 第一用户设备和第 二用户设备的通信质量是否满足预设阈值; 若满足预设阈值, 则确定第一用 户设备协作第二用户设备接收第二下行数据。
可选的, 执行确定协作第一用户设备接收第一下行数据的至少一个第二 用户设备之后, 还可以: 向每个第二用户设备发送第一小区无线网络临时标 识 C-RNTI, 以使每个第二用户设备根据第一 C-RNTI对第一下行数据的控制 信息进行解调; 或者, 向任意至少一个第二用户设备发送第一 C-RNTI, 以使 所有第二用户设备共享第一 C-RNTI。
可选的, 第一 C-RNTI为第一用户设备的 C-RNTI, 或者, 为第二用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
可选的, 执行确定第一用户设备协作第二用户设备接收第二下行数据之 后, 还包括: 向第一用户设备发送第二 C-RNTI, 以使第一用户设备根据第二 C-RNTI对第二下行数据的控制信息进行解调。
可选的, 第二 C-RNTI为第二用户设备的 C-RNTI, 或者, 为第一用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
可选的, 第一下行数据的第一部分和第一下行数据的第二部分相同, 或 者, 第一下行数据的第一部分和第一下行数据的第二部分不同。
本发明实施例提供的网络设备, 与本发明图 1所提供的方法实施例相 对应, 为方法实施例的执行主体, 因此, 该网络设备执行用户设备协作通 信方法的具体过程可参见方法实施例, 在此不再赘述。
本实施例提供的网络设备, 在接收到第一用户设备的协作请求后, 可 以为该用户设备确定协作接收下行数据的其他至少一个第二用户设备, 并 通过指示消息指示第一用户设备可以分别通过网络设备和第二用户设备 来接收下行数据。 从而在不增加用户设备物理天线的前提下, 能够提升用 户设备接收数据的质量, 降低误码率, 获得分集增益; 还可以提升信道容 量, 达到 "空分复用" 的有益效果, 获得复用增益。
图 12为本发明提供的用户设备又一个实施例的结构示意图。 如图 12 所示, 本实施例提供的用户设备 100包括处理器 1001和存储器 1002。 用 户设备 100还可以包括发射器 1003、 接收器 1004。 发射器 1003和接收器 1004可以和处理器 1001相连。 其中, 发射器 1003用于发送数据或信息, 接收器 1004用于接收数据或信息, 存储器 1002存储执行指令, 当用户设 备 100运行时, 处理器 1001与存储器 1002之间通信, 处理器 1001调用 存储器 1002中的执行指令, 用于执行以下操作:
向网络设备发送协作请求; 接收网络设备发送的第一指示消息, 第一指 示消息用于指示第一用户设备从网络设备接收第一下行数据中的第一部分, 从第二用户设备接收第一下行数据的第二部分; 接收网络设备发送的第一下 行数据中的第一部分, 从第二用户设备接收第一下行数据的第二部分。
可选的, 还可以执行: 接收网络设备发送的第四指示消息, 第四指示消 息用于指示第一用户设备将从网络设备接收的第二下行数据的第二部分转发 给第二用户设备。
可选的, 还可以执行: 与第二 UE进行协商, 以使第一用户设备从网络 设备接收第二下行数据的第二部分并转发给第二用户设备。
可选的, 还可以执行: 接收网络设备发送的第二下行数据的第二部分; 将第二下行数据的第二部分发送给第二用户设备。
在执行向网络设备发送协作请求之后, 还可以: 接收网络设备发送的第 二 C-RNTI; 根据第二 C-RNTI对第二下行数据的控制信息进行解调。
可选的, 第二 C-RNTI为第二用户设备的 C-RNTI, 或者, 为第一用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
可选的, 还可以执行: 与第二 UE进行协商, 以使第二用户设备从网络 设备接收第一下行数据的第二部分并转发给第一用户设备。
本发明实施例提供的用户设备, 与本发明图 2所提供的方法实施例相 对应, 为方法实施例的执行主体, 因此, 该用户设备执行用户设备协作通 信方法的具体过程可参见方法实施例, 在此不再赘述。
本实施例提供的用户设备, 可以向网络设备发送协作请求, 网络设备 可以为该用户设备确定协作接收下行数据的其他至少一个第二用户设备, 并通过指示消息指示第一用户设备可以分别通过网络设备和第二用户设 备来接收下行数据。 从而在不增加用户设备物理天线的前提下, 能够提升 用户设备接收数据的质量, 降低误码率, 获得分集增益; 还可以提升信道 容量, 达到 "空分复用" 的有益效果, 获得复用增益。
图 13为本发明提供的用户设备再一个实施例的结构示意图。 如图 13 所示, 本实施例提供的用户设备 110包括处理器 1101和存储器 1102。 用 户设备 110还可以包括发射器 1103、 接收器 1104。 发射器 1103和接收器 1104可以和处理器 1101相连。 其中, 发射器 1103用于发送数据或信息, 接收器 1104用于接收数据或信息, 存储器 1102存储执行指令, 当用户设 备 110运行时, 处理器 1101与存储器 1102之间通信, 处理器 1101调用 存储器 1102中的执行指令, 用于执行以下操作:
接收网络设备发送的第一下行数据的第二部分, 第一下行数据的第一部 分由网络设备发送给第一用户设备; 将第一下行数据的第二部分转发给第一 用户设备。
可选的, 在执行接收网络设备发送的第一下行数据的第二部分之前, 还 可以: 接收网络设备发送的第二指示消息, 第二指示消息用于指示第二用户 设备将从网络设备接收的第一下行数据的第二部分转发给第一用户设备。
可选的, 在接收网络设备发送的第一下行数据的第二部分之前, 还可以 执行: 与第一 UE进行协商, 以使第二用户设备从网络设备接收第一下行数 据的第二部分并转发给第一用户设备。
可选的, 接收网络设备发送的第一下行数据的第二部分之前, 还可以执 行: 接收网络设备发送的第一小区无线网络临时标识 C-RNTI; 根据第一 C-RNTI对第一下行数据的控制信息进行解调。
可选的, 为协作第一用户设备接收第一下行数据的所有用户设备中的主 用户设备, 则接收网络设备发送的第一下行数据的第二部分之前, 还可以执 行: 接收网络设备发送的第一 C-RNTI; 则主设备根据第一 C-RNTI对第一下 行数据的控制信息进行解调。
可选的, 第一 C-RNTI为第一用户设备的 C-RNTI, 或者, 为第二用户设 备的 C-RNTI, 或者, 为预先设定的 C-RNTI。 可选的, 还可以执行: 接收网络设备发送的第三指示消息, 第三指示消 息还用于指示第二用户设备从网络设备接收第二下行数据中的第一部分, 从 第一用户设备接收第二下行数据的第二部分。
可选的, 接收网络设备发送的第三指示消息之后, 还可以执行: 从网络 设备接收第二下行数据中的第一部分, 从第一用户设备接收第二下行数据的 第二部分。
从第一用户设备接收第二下行数据的第二部分之前, 还可以执行: 与第 一 UE进行协商, 以使第一用户设备从网络设备接收第二下行数据的第二部 分并转发给第二用户设备。
本发明实施例提供的用户设备, 与本发明图 3所提供的方法实施例相 对应, 为方法实施例的执行主体, 因此, 该用户设备执行用户设备协作通 信方法的具体过程可参见方法实施例, 在此不再赘述。
本实施例提供的用户设备为协作设备, 网络设备接收到第一用户设备 的协作请求后, 可以为该用户设备确定协作接收下行数据的其他至少一个 第二用户设备, 并通过指示消息指示第一用户设备可以分别通过网络设备 和第二用户设备来接收下行数据。 从而在不增加用户设备物理天线的前提 下, 能够提升用户设备接收数据的质量, 降低误码率, 获得分集增益; 还 可以提升信道容量, 达到 "空分复用" 的有益效果, 获得复用增益。
本发明还提供一种用户设备协作通信系统实施例, 包括如图 6所示的 网络设备, 如图 7或图 8所示的第一用户设备, 以及如图 9或图 10所示 的第二用户设备。
本发明还提供另一种用户设备协作通信系统实施例,包括如图 11所示 的网络设备, 如图 12所示的第一用户设备, 以及如图 13所示的第二用户 设备。
本发明上述实施例提供的系统中的设备, 均可以参照上述设备实施例 中的相关描述, 在此不再赘述。
本发明实施例提供的用户设备协作通信系统, 网络设备接收到第一用 户设备的协作请求后, 可以为该用户设备确定协作接收下行数据的其他至 少一个第二用户设备, 并通过指示消息指示第一用户设备可以分别通过网 络设备和第二用户设备来接收下行数据。从而在不增加用户设备物理天线 的前提下, 能够提升用户设备接收数据的质量, 降低误码率, 获得分集增 益; 还可以提升信道容量, 达到 "空分复用"的有益效果, 获得复用增益。
本领域普通技术人员可以理解: 实现上述方法实施例的全部或部分步骤 可以通过程序指令相关的硬件来完成, 前述的程序可以存储于一计算机可读 取存储介质中, 该程序在执行时, 执行包括上述方法实施例的步骤; 而前述 的存储介质包括: ROM、 RAM, 磁碟或者光盘等各种可以存储程序代码的介 质。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或者替换, 并 不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims

权 利 要 求 书
1、 一种用户设备协作通信方法, 其特征在于, 包括:
网络设备接收第一用户设备发送的协作请求;
所述网络设备根据所述协作请求, 确定协作所述第一用户设备接收第一 下行数据的至少一个第二用户设备;
所述网络设备向所述第一用户设备发送第一指示消息, 所述第一指示消 息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中的第 一部分, 从所述第二用户设备接收所述第一下行数据的第二部分。
2、 根据权利要求 1所述的方法, 其特征在于, 所述网络设备根据所述协 作请求, 确定协作所述第一用户设备接收第一下行数据的至少一个第二用户 设备之后, 还包括:
所述网络设备向所述第二用户设备发送第二指示消息, 所述第二指示消 息用于指示所述第二用户设备将从所述网络设备接收的所述第一下行数据的 第二部分转发给所述第一用户设备。
3、 根据权利要求 1或 2所述的方法, 其特征在于, 还包括:
所述网络设备确定待发送所述第二用户设备的第二下行数据;
所述网络设备确定所述第一用户设备协作所述第二用户设备接收第二下 行数据;
网络设备向所述第二用户设备发送第三指示消息, 所述第三指示消息用 于指示所述第二用户设备从所述网络设备接收所述第二下行数据中的第一部 分, 从所述第一用户设备接收所述第二下行数据的第二部分。
4、 根据权利要求 3所述的方法, 其特征在于, 所述网络设备确定所述第 一用户设备协作所述第二用户设备接收第二下行数据之后, 还包括:
网络设备向所述第一用户设备发送第四指示消息, 所述第四指示消息用 于指示所述第一用户设备将从所述网络设备接收的所述第二下行数据的第二 部分转发给所述第二用户设备。
5、 根据权利要求 3所述的方法, 其特征在于, 所述网络设备确定所述第 一用户设备协作所述第二用户设备接收第二下行数据, 具体包括:
所述网络设备判断所述第二用户设备协作所述第一用户设备接收所述第 一下行数据并且所述第一用户设备协作所述第二用户设备接收所述第二下行 数据情况下, 所述第一用户设备和所述第二用户设备的通信质量是否满足预 设阈值;
若满足所述预设阈值, 则所述网络设备确定所述第一用户设备协作所述 第二用户设备接收第二下行数据。
6、 根据权利要求 1-5任一项所述的方法, 其特征在于, 所述网络设备根 据所述协作请求, 确定协作所述第一用户设备接收第一下行数据的至少一个 第二用户设备之后, 还包括:
所述网络设备向每个所述第二用户设备发送第一小区无线网络临时标识 C-RNTI, 以使每个所述第二用户设备根据所述第一 C-RNTI对所述第一下行 数据的控制信息进行解调; 或者,
所述网络设备向任意至少一个所述第二用户设备发送所述第一 C-RNTI, 以使所有所述第二用户设备共享所述第一 C-RNTI。
7、 根据权利要求 6所述的方法, 其特征在于, 所述第一 C-RNTI为所述 第一用户设备的 C-RNTI, 或者, 为所述第二用户设备的 C-RNTI, 或者, 为 预先设定的 C-RNTI。
8、 根据权利要求 3所述的方法, 其特征在于, 所述网络设备确定所述第 一用户设备协作所述第二用户设备接收第二下行数据之后, 还包括:
所述网络设备向所述第一用户设备发送第二 C-RNTI,以使所述第一用户 设备根据所述第二 C-RNTI对所述第二下行数据的控制信息进行解调。
9、 根据权利要求 8所述的方法, 其特征在于, 所述第二 C-RNTI为所述 第二用户设备的 C-RNTI, 或者, 为所述第一用户设备的 C-RNTI, 或者, 为 预先设定的 C-RNTI。
10、 根据权利要求 1-9任一项所述的方法, 其特征在于, 所述第一下行 数据的第一部分和所述第一下行数据的第二部分相同, 或者, 所述第一下行 数据的第一部分和所述第一下行数据的第二部分不同。
11、 一种用户设备协作通信方法, 其特征在于, 包括:
第一用户设备向网络设备发送协作请求;
所述第一用户设备接收所述网络设备发送的第一指示消息, 所述第一指 示消息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中 的第一部分, 从第二用户设备接收所述第一下行数据的第二部分; 所述第一用户设备接收所述网络设备发送的所述第一下行数据中的第一 部分, 从所述第二用户设备接收所述第一下行数据的第二部分。
12、 根据权利要求 11所述的方法, 其特征在于, 所述方法还包括: 所述第一用户设备接收所述网络设备发送的第四指示消息, 所述第四指 示消息用于指示所述第一用户设备将从所述网络设备接收的第二下行数据的 第二部分转发给所述第二用户设备。
13、 根据权利要求 11所述的方法, 其特征在于, 所述方法还包括: 第一用户设备与所述第二用户设备进行协商, 以使所述第一用户设备从 所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设备。
14、 根据权利要求 12或 13所述的方法, 其特征在于, 所述方法还包括: 所述第一用户设备接收所述网络设备发送的第二下行数据的第二部分; 所述第一用户设备将所述第二下行数据的第二部分发送给所述第二用户 设备。
15、 根据权利要求 14所述的方法, 其特征在于, 所述第一用户设备向网 络设备发送协作请求之后, 还包括:
所述第一用户设备接收所述网络设备发送的第二 C-RNTI;
所述第一用户设备根据所述第二 C-RNTI对所述第二下行数据的控制信 息进行解调。
16、 根据权利要求 15所述的方法, 其特征在于, 所述第二 C-RNTI为所 述第二用户设备的 C-RNTI, 或者, 为所述第一用户设备的 C-RNTI, 或者, 为预先设定的 C-RNTI。
17、 根据权利要求 11-16任一项所述的方法, 其特征在于, 所述方法还 包括:
第一用户设备与所述第二用户设备进行协商, 以使所述第二用户设备从 所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用户设 备。
18、 一种用户设备协作通信方法, 其特征在于, 包括:
第二用户设备接收网络设备发送的第一下行数据的第二部分, 所述第一 下行数据的第一部分由所述网络设备发送给第一用户设备;
所述第二用户设备将所述第一下行数据的第二部分转发给所述第一用户 设备。
19、 根据权利要求 18所述的方法, 其特征在于, 所述第二用户设备接收 所述网络设备发送的第一下行数据的第二部分之前, 还包括:
所述第二用户设备接收所述网络设备发送的第二指示消息, 所述第二指 示消息用于指示所述第二用户设备将从所述网络设备接收的所述第一下行数 据的第二部分转发给所述第一用户设备。
20、 根据权利要求 18所述的方法, 其特征在于, 所述第二用户设备接收 所述网络设备发送的第一下行数据的第二部分之前, 还包括:
所述第二用户设备与所述第一用户设备进行协商, 以使所述第二用户设 备从所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用户 设备。
21、 根据权利要求 18-20任一项所述的方法, 其特征在于, 所述第二用 户设备接收所述网络设备发送的所述第一下行数据的第二部分之前,还包括: 所述第二用户设备接收所述网络设备发送的第一小区无线网络临时标识 C-RNTI;
所述第二用户设备根据所述第一 C-RNTI对所述第一下行数据的控制信 息进行解调。
22、 根据权利要求 21所述的方法, 其特征在于, 所述第二用户设备为协 作所述第一用户设备接收所述第一下行数据的所有用户设备中的主用户设 备, 则所述第二用户设备接收所述网络设备发送的所述第一下行数据的第二 部分之前, 还包括:
所述第二用户设备接收所述网络设备发送的第一 C-RNTI;
所述主用户设备根据所述第一 C-RNTI对所述第一下行数据的控制信息 进行解调。
23、 根据权利要求 21或 22所述的方法, 其特征在于, 所述第一 C-RNTI 为所述第一用户设备的 C-RNTI, 或者, 为所述第二用户设备的 C-RNTI, 或 者, 为预先设定的 C-RNTI。
24、 根据权利要求 18-23任一项所述的方法, 其特征在于, 所述方法还 包括:
所述第二用户设备接收所述网络设备发送的第三指示消息, 所述第三指 示消息还用于指示所述第二用户设备从所述网络设备接收第二下行数据中的 第一部分, 从所述第一用户设备接收所述第二下行数据的第二部分。
25、 根据权利要求 24所述的方法, 其特征在于, 所述第二用户设备接收 网络设备发送的第三指示消息之后, 还包括:
所述第二用户设备从所述网络设备接收第二下行数据中的第一部分, 从 所述第一用户设备接收所述第二下行数据的第二部分。
26、 根据权利要求 24或 25所述的方法, 其特征在于, 所述从所述第一 用户设备接收所述第二下行数据的第二部分之前, 还包括:
所述第二用户设备与所述第一用户设备进行协商, 以使所述第一用户设 备从所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设 备。
27、 一种用户设备协作通信网络设备, 其特征在于, 包括:
接收模块, 用于接收第一用户设备发送的协作请求;
确定模块, 用于根据接收模块接收的协作请求, 确定协作所述第一用户 设备接收第一下行数据的至少一个第二用户设备;
发送模块, 用于向所述第一用户设备发送第一指示消息, 所述第一指示 消息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中的 第一部分, 从所述第二用户设备接收所述第一下行数据的第二部分。
28、 根据权利要求 27所述的网络设备, 其特征在于, 所述发送模块还用 于: 向所述第二用户设备发送第二指示消息, 所述第二指示消息用于指示所 述第二用户设备将从所述网络设备接收的所述第一下行数据的第二部分转发 给所述第一用户设备。
29、 根据权利要求 27或 28所述的网络设备, 其特征在于, 所述确定模 块还用于: 在所述接收模块接收第一用户设备发送的协作请求之后, 确定待 发送所述第二用户设备的第二下行数据; 确定所述第一用户设备协作所述第 二用户设备接收第二下行数据; 所述发送模块还用于: 向所述第二用户设备 发送第三指示消息, 所述第三指示消息用于指示所述第二用户设备从所述网 络设备接收所述第二下行数据中的第一部分, 从所述第一用户设备接收所述 第二下行数据的第二部分。
30、 根据权利要求 29所述的网络设备, 其特征在于, 所述发送模块还用 于: 向所述第一用户设备发送第四指示消息, 所述第四指示消息用于指示所 述第一用户设备将从所述网络设备接收的所述第二下行数据的第二部分转发 给所述第二用户设备。
31、 根据权利要求 30所述的网络设备, 其特征在于, 所述确定模块具体 用于: 判断所述第二用户设备协作所述第一用户设备接收所述第一下行数据 并且所述第一用户设备协作所述第二用户设备接收所述第二下行数据情况 下, 所述第一用户设备和所述第二用户设备的通信质量是否满足预设阈值; 若满足所述预设阈值, 则所述网络设备确定所述第一用户设备协作所述第二 用户设备接收第二下行数据。
32、 根据权利要求 27-31 任一项所述的网络设备, 其特征在于, 所述发 送模块还用于: 在所述确定模块根据所述协作请求, 确定协作所述第一用户 设备接收第一下行数据的至少一个第二用户设备之后, 向每个所述第二用户 设备发送第一小区无线网络临时标识 C-RNTI,以使每个所述第二用户设备根 据所述第一 C-RNTI对所述第一下行数据的控制信息进行解调; 或者, 向任 意至少一个所述第二用户设备发送所述第一 C-RNTI,以使所有所述第二用户 设备共享所述第一 C-RNTI。
33、 根据权利要求 32所述的网络设备, 其特征在于, 所述第一 C-RNTI 为所述第一用户设备的 C-RNTI, 或者, 为所述第二用户设备的 C-RNTI, 或 者, 为预先设定的 C-RNTI。
34、 根据权利要求 29所述的网络设备, 其特征在于, 所述发送模块还用 于: 在所述确定模块确定所述第一用户设备协作所述第二用户设备接收第二 下行数据之后, 向所述第一用户设备发送第二 C-RNTI, 以使所述第一用户设 备根据所述第二 C-RNTI对所述第二下行数据的控制信息进行解调。
35、 根据权利要求 34所述的网络设备, 其特征在于, 所述第二 C-RNTI 为所述第二用户设备的 C-RNTI, 或者, 为所述第一用户设备的 C-RNTI, 或 者, 为预先设定的 C-RNTI。
36、 根据权利要求 27-35所述的网络设备, 其特征在于, 所述第一下行 数据的第一部分和所述第一下行数据的第二部分相同, 或者, 所述第一下行 数据的第一部分和所述第一下行数据的第二部分不同。
37、 一种用户设备, 其特征在于, 包括: 发送模块, 用于向网络设备发送协作请求;
接收模块, 用于接收所述网络设备发送的第一指示消息, 所述第一指示 消息用于指示所述第一用户设备从所述网络设备接收所述第一下行数据中的 第一部分; 接收所述网络设备发送的第一指示消息, 所述第一指示消息用于 指示所述第一用户设备从所述网络设备接收所述第一下行数据中的第一部 分。
所述接收模块, 还用于接收所述网络设备发送的所述第一下行数据中的 第一部分, 从第二用户设备接收所述第一下行数据的第二部分。
38、 根据权利要求 37所述的用户设备, 其特征在于, 所述接收模块还用 于: 接收所述网络设备发送的第四指示消息, 所述第四指示消息还用于指示 所述第一用户设备将从所述网络设备接收的第二下行数据的第二部分转发给 所述第二用户设备。
39、 根据权利要求 37所述的用户设备, 其特征在于, 还包括:
第一协商模块, 用于与所述第二用户设备进行协商, 以使所述第一用户 设备从所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设 备。
40、 根据权利要求 38或 39所述的用户设备, 其特征在于, 所述接收模 块还用于: 在接收所述网络设备发送的第一指示消息之后, 接收所述网络设 备发送的第二下行数据的第二部分; 所述发送模块还用于, 在所述接收模块 接收所述网络设备发送的第二下行数据的第二部分后, 将所述第二下行数据 的第二部分发送给所述第二用户设备。
41、 根据权利要求 40所述的用户设备, 其特征在于, 所述接收模块还用 于: 在所述发送模块向网络设备发送协作请求之后, 接收所述网络设备发送 的第二小区无线网络临时标识 C-RNTI; 所述接收模块具体用于:在所述接收 模块接收所述网络设备发送的第二 C-RNTI后,根据所述第二 C-RNTI对所述 第二下行数据的控制信息进行解调。
42、 根据权利要求 41所述的用户设备, 其特征在于, 所述第二 C-RNTI 为所述第二用户设备的 C-RNTI, 或者, 为所述第一用户设备的 C-RNTI, 或 者, 为预先设定的 C-RNTI。
43、 根据权利要求 37-42任一项所述的用户设备, 其特征在于, 还包括: 第二协商模块, 用于与所述第二用户设备进行协商, 以使所述第二用户 设备从所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用 户设备。
44、 一种用户设备, 其特征在于, 包括:
接收模块, 用于接收网络设备发送的第一下行数据的第二部分, 所述第 一下行数据的第一部分由所述网络设备发送给第一用户设备;
发送模块, 用于将所述第一下行数据的第二部分转发给所述第一用户设 备。
45、 根据权利要求 44所述的用户设备, 其特征在于, 所述接收模块还用 于, 接收网络设备发送的第二指示消息, 所述第二指示消息用于指示所述第 二用户设备将从所述网络设备接收的第一下行数据的第二部分转发给所述第 一用户设备。
46、 根据权利要求 44所述的用户设备, 其特征在于, 还包括:
第一协商模块, 用于与所述第一用户设备进行协商, 以使所述第二用户 设备从所述网络设备接收所述第一下行数据的第二部分并转发给所述第一用 户设备。
47、 根据权利要求 44-46任一项所述的用户设备, 其特征在于, 所述接 收模块还用于: 在接收所述网络设备发送的所述第一下行数据的第二部分之 前, 接收所述网络设备发送的第一小区无线网络临时标识 C-RNTI, 根据所述 第一 C-RNTI对所述第一下行数据的控制信息进行解调。
48、 根据权利要求 47所述的用户设备, 其特征在于, 所述第一 C-RNTI 为所述第一用户设备的 C-RNTI, 或者, 为所述第二用户设备的 C-RNTI, 或 者, 为预先设定的 C-RNTI。
49、 根据权利要求 44-48任一项所述的用户设备, 其特征在于, 所述接 收模块还用于: 接收所述网络设备发送的第三指示消息, 所述第三指示消息 还用于指示所述第二用户设备从所述网络设备接收第二下行数据中的第一部 分, 从所述第一用户设备接收所述第二下行数据的第二部分。
50、 根据权利要求 49所述的用户设备, 其特征在于, 在所述接收模块接 收网络设备发送的第三指示消息之后, 所述接收模块还用于: 从所述网络设 备接收第二下行数据中的第一部分, 从所述第一用户设备接收所述第二下行 数据的第二部分。
51、 根据权利要求 49或 50所述的用户设备, 其特征在于, 还包括: 第二协商模块, 用于与所述第一用户设备进行协商, 以使所述第一用户 设备从所述网络设备接收第二下行数据的第二部分并转发给所述第二用户设 备。
52、 一种网络设备, 其特征在于, 包括: 处理器和存储器, 所述存储 器存储执行指令, 当所述网络设备运行时, 所述处理器与所述存储器之间 通信,所述处理器执行所述执行指令使得所述基站执行如权利要求 1至 10 任一项所述的方法。
53、 一种用户设备, 其特征在于, 包括处理器和存储器, 所述存储器 存储执行指令, 当所述用户设备运行时, 所述处理器与所述存储器之间通 信, 所述处理器执行所述执行指令使得所述用户设备执行如权利要求 11 至 17任一项所述的方法。
54、 一种用户设备, 其特征在于, 包括处理器和存储器, 所述存储器 存储执行指令, 当所述用户设备运行时, 所述处理器与所述存储器之间通 信, 所述处理器执行所述执行指令使得所述用户设备执行如权利要求 18 至 26任一项所述的方法。
55、 一种用户设备协作通信系统, 其特征在于, 包括如权利要求 27-36 任一项所述的网络设备, 如权利要求 37-43任一项所述的第一用户设备, 以及如权利要求 44-51任一项所述的第二用户设备。
56、 一种用户设备协作通信系统, 其特征在于, 包括如权利要求 52所 述的网络设备, 如权利要求 53所述的第一用户设备, 以及如权利要求 54 任一项所述的第二用户设备。
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