WO2014048282A1 - 一种信道状态信息的处理方法、装置和系统 - Google Patents
一种信道状态信息的处理方法、装置和系统 Download PDFInfo
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- WO2014048282A1 WO2014048282A1 PCT/CN2013/083951 CN2013083951W WO2014048282A1 WO 2014048282 A1 WO2014048282 A1 WO 2014048282A1 CN 2013083951 W CN2013083951 W CN 2013083951W WO 2014048282 A1 WO2014048282 A1 WO 2014048282A1
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- state information
- channel state
- channel
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- status information
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- 230000010365 information processing Effects 0.000 title claims 2
- 238000003672 processing method Methods 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 claims abstract description 257
- 238000004891 communication Methods 0.000 claims abstract description 65
- 230000010267 cellular communication Effects 0.000 claims abstract description 34
- 230000011664 signaling Effects 0.000 claims description 183
- 238000005259 measurement Methods 0.000 claims description 100
- 238000000034 method Methods 0.000 claims description 51
- 238000013475 authorization Methods 0.000 claims description 49
- 230000001960 triggered effect Effects 0.000 claims description 47
- 238000012545 processing Methods 0.000 claims description 31
- 230000001413 cellular effect Effects 0.000 claims description 12
- 230000000737 periodic effect Effects 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000001228 spectrum Methods 0.000 description 4
- 230000003044 adaptive effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0057—Physical resource allocation for CQI
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
Definitions
- the present invention relates to the field of communications, and in particular, to a method, apparatus, and system for processing channel state information. Background technique
- the cellular communication system realizes the multiplexing of limited spectrum resources, which makes the wireless communication technology flourish.
- a cellular communication system when there is a service between two user equipments (UEs), the service data of UE1 to UE2 is first transmitted to the base station 1 through the air interface, and the base station 1 passes the service through the core network. The data is transmitted to the base station 2, and the base station 2 transmits the service data to the UE2 through the air interface.
- UE1 and UE2 are in the same cell, although base station 1 and base station 2 are the same site, one data transmission still consumes two radio spectrum resources.
- D2D Device-to-Device
- the D2D indicates that the service data is not forwarded by the base station, but is directly transmitted by the source user equipment to the target user equipment through the air interface.
- This communication mode is different from the communication mode of a conventional cellular communication system. For users of short-range communication, D2D not only saves wireless spectrum resources, but also reduces the data transmission pressure of the core network.
- one of the criteria for scheduling is the channel condition. That is, a reference signal (RS) is transmitted at the transceiver end, and channel state information (CSI) between the network node and the user equipment is obtained according to the measurement of the reference signal, and This channel state information is used as one of the basis for scheduling.
- RS reference signal
- CSI channel state information
- the reference signal is also commonly referred to as a pilot
- D2D communication in cellular communication systems also involves scheduling problems for traffic transmission. That is, when the UE is scheduled to perform D2D communication, the channel state information between the UEs needs to be used as the basis for scheduling. For the problem of channel state information transmission in a system supporting D2D communication, there is currently no specific solution in the related art. Summary of the invention
- a main object of embodiments of the present invention is to provide a method, apparatus, and system for processing channel state information to solve the problem of channel state information transmission in a communication system supporting D2D communication.
- a method for processing channel state information includes:
- the first link is a cellular communication link of the first device to the network node, and the second link is capable of a device-to-device D2D communication link between the second device in communication with the first device and the first device.
- the first channel state information is channel state information of a communication link of the network node to the first device.
- the method for transmitting the second channel state information by using the transmission resource of the first channel state information in the first link is: using a physical uplink control channel PUCCH resource or physical uplink configured for transmitting the first channel state information Sharing channel PUSCH resources to transmit the second channel state information; and/or,
- the first channel state information is required Transmitting, the first channel state information and/or the second channel state information are transmitted according to a priority principle; or the first channel state information and the second channel state information are multiplexed and transmitted; the priority
- the principle is: discarding part or all of the first channel state information; or discarding part or all of the second channel state information; or simultaneously discarding the portion of the first channel state information and the second channel state information part.
- the second channel state information is periodically fed back channel state information; the second channel state information is transmitted according to a feedback period configured by the high layer signaling; or the second channel state information is configured according to the configured measurement
- the transmission period of the frequency is transmitted.
- the transmission of the second channel state information is triggered by the transmission of the measurement pilot; or the transmission of the second channel state information is triggered by the trigger signaling, and the trigger signaling is sent by the network node.
- the second channel state information is transmitted in a dedicated resource, where the dedicated resource refers to a resource dedicated to transmitting the second channel state information;
- the dedicated resource is configured by the network node by using high layer signaling; or the dedicated resource is dynamically authorized by the network node by using authorization signaling; or the dedicated resource is located in a cellular chain allocated for the first device.
- the traffic channel is transmitted in the channel, and the dedicated resource is determined in an agreed manner.
- the transmission of the second channel state information is triggered by the transmission of the measurement pilot, and the first device sends the second channel state information according to the transmission of the measurement pilot;
- the transmission of the second channel state information is triggered by trigger signaling, and the first device sends the second channel state information according to the trigger signaling.
- the first device receives an authorization signaling sent by the network node to indicate that the second channel state information is transmitted, and determines, according to the authorization signaling, a resource that transmits the second channel state information, where The second channel state information is sent in the resource.
- the dedicated resource is located in a traffic channel transmission resource allocated to the first device, and when the dedicated resource is determined according to an agreed manner, the second channel state information is transmitted at a fixed location of the traffic channel transmission resource.
- the second channel state information is transmitted by the measurement pilot, and the first device sends the second channel state information according to the measurement pilot transmission; or the second channel state information is transmitted.
- the first device sends the second channel state information according to the trigger signaling.
- the method further includes:
- the network node schedules data transmission of the second link according to the second channel state information.
- a method for processing channel state information includes:
- the first link is a cellular communication link of the first device to the network node, and the second link is capable of a device-to-device communication link between the second device communicated by the first device and the first device.
- the resource that receives the second channel state information is a transmission resource of the first channel state information allocated to the first device
- the first channel state information is channel state information of a communication link of the network node to the first device.
- the resource is a PUCCH resource or a PUSCH resource configured to transmit the first channel state information; and/or,
- the first device transmits the first channel state information and/or the second channel state information according to a priority principle; or And multiplexing the first channel state information and the second channel state information; the network node parses the first channel state information and/or the second according to the priority principle or the multiplexing manner Channel status information;
- the priority principle is: discarding part or all of the first channel state information; or discarding part or all of the second channel state information; or simultaneously discarding the portion of the first channel state information and the Part of the two-channel status information.
- the second channel state information is periodically transmitted channel state information; the network node configures a transmission period of the second channel state information by using high layer signaling; or
- the network node configures measurement pilot transmission of the second link, and the second channel state information is transmitted according to a configured measurement pilot period.
- the network node configures measurement pilot transmission, and the measurement pilot transmission triggers transmission of the second channel state information
- the network node sends trigger signaling for triggering transmission of the second channel state information.
- the network node configures a dedicated resource for the transmission of the second channel state information; the dedicated resource is configured by the network node by using high layer signaling; or the dedicated resource is dynamically authorized by the network node by using authorization signaling; or
- the dedicated resource is located in a cellular link traffic channel transmission resource allocated for the first device, and the dedicated resource is determined in an agreed manner.
- the network node configures dedicated resources for transmitting the second channel state information
- the network node configures transmission of the second channel state information by using high layer signaling, and the network node receives the second channel state information in the dedicated resource according to the configuration; or, the network node configures the second chain Transmission of the measurement pilot of the path, the transmission of the measurement pilot triggers transmission of the second channel state information, and the network node receives the second channel in the dedicated resource according to the configuration of the measurement pilot Status information; or,
- the network node sends trigger signaling for triggering transmission of the second channel state information, and receives the second channel state information in the dedicated resource.
- the network node sends an authorization signaling indicating transmission of the second channel state information, and receives the second channel state information according to the authorization signaling.
- the dedicated resource is located in a traffic channel transmission resource allocated to the first device, and when determining a specific dedicated resource according to an agreed manner, the first device is agreed to transmit at a fixed location of the traffic channel transmission resource.
- the second channel state information is configured to: perform rate matching on the data of the traffic channel according to the resource occupancy of the second channel state information, or agree to use the second channel in the data of the traffic channel.
- the resource occupancy of the status information is punctured; and the second channel status information is received in the resource.
- the method further includes:
- the network node configures transmission of the measurement pilot, and the transmission of the second channel state information is triggered by transmission of the measurement pilot;
- the network node sends the triggering signaling, where the triggering signaling is used to trigger the first device to perform the transmission of the second channel state information.
- the network node further schedules data transmission of the second link according to the second channel state information.
- a device for processing channel state information including:
- a sending module configured to send second channel state information of the second link to the network node by using the first link
- the first link is a cellular communication link of the device to the network node
- the second link is a device-to-device communication link between a second device capable of communicating with the device and the device .
- the second channel state information is transmitted by using the transmission resource of the first channel state information in the first link;
- the first channel state information is channel state information of a communication link of the network node to the first device.
- the device further includes:
- a priority determining module configured to determine the first channel state information and/or the second channel state information according to a priority principle when the first channel state information needs to be transmitted while transmitting the second channel state information Priority of transmission; the priority principle is: abandoning part or all of the first channel state information; or discarding part or all of the second channel state information; or giving up the first channel state information at the same time a portion and a portion of the second channel state information;
- the multiplexing module is configured to: when the first channel state information needs to be transmitted while transmitting the second channel state information, perform the first channel state information and the second channel state information Reuse
- the sending module Transmitting, by the sending module, the first channel state information and/or the PUCCH resource or the PUSCH resource configured for transmitting the first channel state information according to the processing of the priority determining module and/or the multiplexing module Or the second channel state information.
- the second channel state information is periodically fed back channel state information;
- the device includes: a receiving module;
- the receiving module is configured to receive high layer signaling, where the high layer signaling is used to configure a transmission period of the second channel state information, and the second channel state information is transmitted according to the period; or
- the receiving module is configured to receive measurement pilot configuration signaling of the second link, and the second channel state information is transmitted according to the configured measurement pilot period.
- the device includes: a receiving module
- the receiving module is configured to receive measurement pilot configuration signaling of the second link, where transmission of the second channel state information is triggered by transmission of the measurement pilot;
- the receiving module is configured to receive trigger signaling sent by the network node, and the transmission of the second channel state information is triggered by the trigger signaling.
- the second channel state information is transmitted by using a dedicated resource
- the device includes: a receiving module, configured to receive high-level configuration signaling from a network node, where the high-level configuration signaling is used to configure the dedicated resource; or the receiving module is configured to receive authorization information from a network node, The authorization information is used to dynamically authorize the dedicated resource; or the dedicated resource is located in a cellular link traffic channel transmission resource allocated for the device, and the dedicated resource is determined according to an agreed manner.
- the sending module is configured to:
- the receiving module is further configured to receive trigger signaling, and the sending module is configured to send the second channel state information according to the trigger signaling.
- the specific resource is located in a service channel transmission resource allocated to the device, and when determining a specific dedicated resource according to an agreed manner, the method includes: transmitting, at the fixed location of the traffic channel transmission resource, the second channel state information; And the device further includes a traffic channel processing module, configured to perform rate matching on the data of the traffic channel according to the resource occupancy of the second channel state information, or, according to the data, the data of the traffic channel
- the resource occupancy of the two-channel state information is punctured.
- the device When the transmission of the second channel state information is triggered by the transmission of the measurement pilot, the device is configured to send the second channel state information according to the transmission of the measurement pilot;
- the device When the transmission of the second channel state information is triggered by the trigger signaling, the device is configured to send the second channel state information according to the trigger signaling.
- the device is a first device capable of communicating with the second device: a user equipment UE.
- a device for processing channel state information including:
- a receiving module configured to receive, by using the first link, second channel state information of the second link sent by the first device
- the first link is a communication link of a first device to the device
- the second link is a device-to-device communication between a second device capable of communicating with the first device and the first device link.
- the resource for receiving the second channel state information is a transmission resource of the first channel state information allocated to the first device
- the first channel state information is channel state information of a communication link of the device to the first device.
- the resource for receiving the second channel state information is a PUCCH resource or a PUSCH resource configured for transmitting the first channel state information; and/or,
- the first device transmits the first channel state information and/or the second channel state information according to a priority principle, or And multiplexing the first channel state information and the second channel state information; and the device parses the first according to the priority principle or the multiplexing manner Channel state information and/or the second channel state information;
- the priority principle is: discarding part or all of the first channel state information; or discarding part or all of the second channel state information; or simultaneously discarding the portion of the first channel state information and the Part of the two-channel status information.
- the second channel state information is periodically transmitted channel state information.
- the device includes: a sending module configured to send configuration signaling; the configuration signaling is high layer signaling, configured to configure the second a transmission period of the channel state information, where the second channel state information is transmitted according to the transmission period; or
- a sending module configured to send configuration signaling, where the configuration signaling is used to configure transmission of the measurement pilot of the first device on the second link, and the second channel state information is according to the measurement pilot The transmission is transmitted.
- the device includes a configuration module configured to configure measurement pilot transmission of the second link, where transmission of the second channel state information is triggered by transmission of the measurement pilot; or, the device includes sending The module is configured to send trigger signaling, where the trigger signaling is used to trigger transmission of the second channel state information.
- the resource that receives the second channel state information is a dedicated resource
- the device includes: a dedicated resource configuration module configured to configure a dedicated resource for transmission of the second channel state information; and a sending module configured to send resource configuration signaling according to the configuration of the dedicated resource configuration module;
- the resource configuration signaling is high layer signaling; or the resource configuration signaling is dynamic authorization signaling;
- the dedicated resource is located in a traffic channel transmission resource allocated for the first device, and the dedicated resource is determined in an agreed manner.
- the receiving module is configured to receive the second channel state information according to the configuration of the high layer signaling; or
- the device includes a configuration module configured to configure transmission of a measurement pilot, the transmission of the second channel state information is triggered by transmission of the measurement pilot, and the receiving module is configured to receive according to the configuration of the measurement pilot The second channel state information; or
- the device includes a sending module, configured to send trigger signaling, where the trigger signaling is used to trigger transmission of the second channel state information, and the receiving module is configured to receive the second channel according to the trigger signaling status information.
- the specific resource is located in the service channel transmission resource allocated to the first device, and when determining the specific dedicated resource according to the agreed manner, the method includes: Positioning the second channel state information; and performing rate matching on the data of the traffic channel according to resource occupancy of the second channel state information, or performing data on the traffic channel according to the second channel
- the resource occupancy of the status information is punctured;
- the apparatus includes: a traffic channel processing module configured to determine the dedicated resource according to the agreed manner for the received traffic channel, and parse the second channel state information in the dedicated resource.
- the device comprises:
- a configuration module configured to configure transmission of a measurement pilot, where transmission of the second channel state information is triggered by transmission of the measurement pilot, and the receiving module receives the second channel state according to the configuration of the measurement pilot Information
- the sending module is configured to send the triggering signaling, where the triggering signaling is used to trigger the first device to perform the transmission of the second channel state information, and the receiving module receives the first according to the trigger signaling.
- Two-channel status information Two-channel status information.
- the device further includes:
- a scheduling module configured to schedule data transmission of the second link according to the second channel state information.
- the device is a network node.
- a processing system for channel state information comprising: a network node, a first device; wherein, the network node is configured to control, by the first device, to send, by using a first link, a second channel of a second link to the network node by using a first link status information;
- the first link is a cellular communication link of the first device to the network node
- the second link is a device between the second device capable of communicating with the first device and the first device Device communication link.
- the embodiment of the invention solves the problem of channel state information transmission during D2D communication in the cellular communication system, and further provides a basis for scheduling during D2D communication, and ensures resource utilization rate of D2D communication.
- 1 is a schematic diagram of cellular communication when a UE is located in the same cell
- Figure 2 is a schematic diagram of D2D communication
- LTE Long Term Evolution
- LTE-Advanced Long Term Evolution
- FIG. 4 is a schematic structural diagram of an S subframe of an LTE/LTE-A system according to an embodiment of the present invention.
- FIG. 5 is a flowchart of processing channel state information according to an embodiment of the present invention. detailed description
- the second channel state information of the second link may be sent to the network node by using the first link
- the first link is a cellular communication link of the first device to the network node
- the second link is a device-to-device communication link between the second device and the first device.
- the network node may schedule data transmission of the second link according to the second channel state information. Transmitting the second channel state information by using a transmission resource of the first channel state information in the first link;
- the first channel state information is channel state information of a communication link of the network node to the first device.
- the first channel state information may be channel state information of periodic feedback.
- the method for transmitting the second channel state information by using the transmission resource of the first channel state information in the first link may be: a PUCCH (Physical Uplink Control Channel) configured to transmit the first channel state information, Physical uplink control channel) or PUSCH (Physical Uplink Shared Channel) resource for transmitting the second channel state information;
- a PUCCH Physical Uplink Control Channel
- PUSCH Physical Uplink Shared Channel
- the channel state information and the second channel state information are multiplexed and transmitted; the priority principle is: discarding part or all of the first channel state information; or discarding part or all of the second channel state information; Or discarding the portion of the first channel state information and the portion of the second channel state information at the same time.
- the second channel state information may be transmitted according to a feedback period configured by the high layer signaling;
- the second channel state information may be transmitted according to a configured measurement pilot period.
- the first channel state information may also be channel state information of aperiodic feedback.
- the method for transmitting the second channel state information by using the transmission resource of the first channel state information in the first link may be: transmitting, by using the PUCCH or PUSCH resource configured for transmitting the first channel state information.
- the priority principle is: abandoning part or all of the first channel state information; or discarding the second Part or all of the channel state information; or a portion of the first channel state information and a portion of the second channel state information.
- the transmission of the second channel state information may be triggered by transmission of the measurement pilot; or the transmission of the second channel state information may be triggered by The signaling is triggered, and the trigger signaling is sent by the network node.
- the dedicated resource may be configured by the network node by using high layer signaling; or the dedicated resource may be dynamically authorized by the network node by using authorization signaling; or the dedicated resource may be located for the first device.
- the traffic channel is transmitted in the resource, and the dedicated resource is determined in an agreed manner.
- the network node may send a radio resource control (RRC) signaling for indicating the second channel state information, where the Determining, by the device, a resource for transmitting the second channel state information based on the RRC signaling;
- RRC radio resource control
- the transmission of the second channel state information may be periodic
- the transmission of the second channel state information may be configured by the network node by using the high layer signaling, and the first device periodically sends the second channel state information according to the configuration of the high layer signaling;
- the transmission of the second channel state information may be triggered by the transmission of the measurement pilot, and the first device sends the second channel state information according to the transmission of the measurement pilot;
- the transmission of the second channel state information may be triggered by signaling (eg, may be located at DCI)
- the triggering signaling in the Downlink Control Information, or the triggering signaling in the authorization information of the scheduled D2D communication, is triggered, and the first device sends the second channel state information according to the trigger signaling.
- the network node may send an authorization signaling for indicating the second channel state information, where the first device is based on the authorization signaling. Determining a resource for transmitting the second channel state information, and transmitting the second channel state information in the resource.
- the dedicated resource is located in a traffic channel transmission resource allocated to the first device, and when determining a specific dedicated resource according to an agreed manner, the second channel state information may be transmitted at a fixed location of the traffic channel transmission resource.
- the data of the traffic channel is matched according to the resource occupancy of the second channel state information, or the data of the traffic channel is punctured according to the resource occupation of the second channel state information.
- the transmission of the second channel state information may be triggered by the transmission of the measurement pilot, and the first device sends the second channel state information according to the transmission of the measurement pilot; or
- the transmission of the second channel state information may be triggered by trigger signaling (for example, trigger signaling located in the DCI or trigger signaling located in the authorization information for scheduling D2D communication), the first device according to the trigger signal Let the second channel state information be sent.
- the channel state is also in a time-varying state due to the time-varying and unpredictable characteristics of the wireless channel without conflict. Therefore, the code rate and modulation method of data transmission in real time through Adaptive Modulation and Coding (AMC) (the code rate and modulation method of such data transmission are called modulation and coding schemes in some systems (Modulation and Coding Scheme). , MCS)) can significantly improve the spectrum efficiency of wireless communication systems.
- AMC Adaptive Modulation and Coding
- MCS Modulation and Coding Scheme
- the channel state information is usually obtained by the data receiving end based on the measurement of the reference signal and reported to the network node that schedules the transmission.
- D2D communication is introduced in a cellular communication system, a similar problem is faced, that is, the channel state information needs to be reported to the network node that schedules the transmission.
- the following related exemplary embodiments are described in the context of the 3GPP (3rd Generation Partnership Project) LTE/LTE-A cellular communication system.
- the LTE/LTE-A system downlink is based on OFDM (Orthogonal Frequency Division Multiplexing) technology, and the uplink uses Single Carrier-Frequency Division Multiplexing Access (Single Carrier-Frequency Division Multiplexing Access, SC-FDMA) Multiple access mode.
- OFDM/SC-FDMA communication resources are in the form of time-frequency two-dimensional.
- uplink and downlink communication resources are divided in units of frames in the time direction, and each radio frame has a length of 10 ms. Contains 10 sub-frames of length 1 ms, each of which includes two slots of length 0.5 ms, as shown in FIG.
- the minimum unit of frequency domain resource allocation is RB (Resource Block), and one PRB (Physical Resource Block) of the corresponding physical resource.
- a PRB contains 12 subcarriers in the frequency domain, corresponding to one time slot in the time domain.
- a resource corresponding to one subcarrier on each OFDM symbol is called a Resource Element (RE), as shown in FIG.
- the measurement of the downlink is mainly based on a CRS (Cell-specific Reference Signal, or a common reference signal) and a CSI-RS (Channel State Information-Reference Signal, The channel state information reference signal is implemented, and the data transmission of the downlink is scheduled based on the measurement result of the CRS or CSI-RS fed back by the UE; the measurement of the uplink is generally based on SRS (Sounding Reference Signal, The sounding reference signal is implemented, and the data transmission of the uplink is scheduled based on the measurement result of the SRS by the network side.
- the SRS measurement result can also be used, that is, the channel reciprocity can be utilized.
- the network node described in the embodiment of the present invention refers to a node on the network side, such as a base station (eNB, evolved Node B), or another network element on the network side in the LTE/LTE-A system; the device is in the LTE/LTE-A system.
- a base station eNB, evolved Node B
- MCI Middle finger UE.
- the first device sends the second channel state information of the second link to the network node by using the first link, where the first link is a cellular communication link of the first device to the network node, and second A link is a device-to-device communication link between a second device and the first device.
- the second channel state information may be transmitted using a transmission resource of the first channel state information.
- the first channel state information is channel state information of the network node to the first device link.
- the network node configures dedicated resources for the transmission of the first channel state information.
- a base station eNB
- eNB configures a PUCCH resource for a UE to periodically feed back CSI.
- the UE may use the PUCCH resource to transmit the channel state information of the D2D link.
- the PUCCH format of the communication system transmits channel state information of the D2D link, for example, Uplink Control Information (UCI) format 2 of the PUCCH, or UCI format 2a, or UCI format 2b, or UCI format 3.
- UCI Uplink Control Information
- the PUCCH format in cellular communication can be used for multiplexing, coding, and resource mapping of channel state information.
- the first channel state information to be transmitted (such as the cellular link channel state information) is simultaneously included in the subframe, and the UE may determine the transmission mode of the channel state information according to a preset priority principle.
- the pre-set priority principle may be: The priority of the cellular link channel state information (i.e., the first channel state information) is not higher than the priority of the D2D link channel state information (i.e., the second channel state information). In this case, when both of them may appear in the same subframe, part or all of the first channel state information is discarded. Abandoning all of the first channel state information means that the first channel state information will not be transmitted in the subframe, but the second channel state information is transmitted in the corresponding resource. For example, the transmission of the rank indication (RI) is abandoned, or the transmission of the RI and the precoding type indication (PTI) is abandoned, or the transmission of the precoding matrix indication (PMI) and channel quality information (CQI) is abandoned.
- RI rank indication
- PTI precoding type indication
- CQI channel quality information
- the part of the first channel state information is discarded: the transmission of the partial information in the first channel state information is discarded.
- the information transmitted simultaneously in the first channel state information may include PMI, CQI, etc., and one of them may be discarded ( For example, the transmission of the PMI is abandoned, or the transmission of the CQI is abandoned.
- the remaining first channel state information is multiplexed with the second channel state information and transmitted in the first channel state information transmission resource; or the first channel state information may include
- the channel state information of the plurality of cells may be replaced by the channel state information of one of the cells by using the second channel state information.
- the pre-set priority principle may also be: the priority of the broadband feedback information is higher than the priority of the sub-band feedback information; and/or the priority of the second channel state information is higher than the priority of the first channel state information. For example, when the feedback of the first channel state information and the second channel state information may appear in the same subframe, if one of the two channel state information is the broadband feedback information, the broadband feedback information is discarded; The channel state information is either broadband feedback information or all subband feedback information, and part or all of the first channel state information is discarded.
- Pre-set priorities can also take into account feedback overhead. For example, when the result of adding the feedback of the first channel state information and the second channel state information of the feedback does not exceed the number of bearable loads of the resource allocated for the first channel state information transmission, the first channel state information and First The two-channel state information is multiplexed and transmitted; otherwise, the channel priority information to be transmitted may be determined using the foregoing priority principle.
- the UE when the UE needs to feed back the channel state information of the D2D link, if the cell state information to be transmitted is transmitted in the subframe in which the channel state information is transmitted, such as the first channel state information, the UE will be the first channel state.
- the information and the second channel state information are multiplexed and transmitted.
- the multiplexing mode refer to the feedback mode of multi-cell channel state information in the LTE/LTE-A system.
- the second channel state information is transmitted in the form of channel state information of a cell in the cellular communication system.
- the second channel state information may be feedback information that is periodically transmitted, or may be feedback information of a non-periodic transmission.
- the network node receives the second channel state information according to the preset priority.
- the first device sends the second channel state information of the second link to the network node by using the first link, where the first link is a cellular communication link of the first device to the network node, and second The link is a device-to-device communication link of the second device with the first device.
- the second channel state information may be transmitted using a dedicated resource, which may be a resource configured by the network node through higher layer signaling.
- a dedicated resource which may be a resource configured by the network node through higher layer signaling.
- the eNB configures resources for the second channel state information transmission for the D2D UE through RRC signaling.
- the configured resource may be a dedicated PUCCH format resource, and the coding and bearer mode of the second channel state information may refer to a related processing manner of channel state information in the LTE/LTE-A cellular communication system; the configured resource may also be a dedicated resource.
- the coding and bearer mode of the second channel state information refer to the processing mode of the uplink traffic channel PUSCH in the LTE/LTE-A cellular communication system.
- the dedicated resource may be a resource dynamically authorized by the network node by using authorization signaling.
- the eNB authorizes resources for transmitting the second channel state information to the D2D UE through the uplink grant (UL grant M message).
- Encoding and bearer of the second channel state information For the manner, refer to the processing manner of the uplink traffic channel PUSCH in the LTE/LTE-A cellular communication system.
- the dedicated resource may be an agreed channel state information transmission resource.
- the agreed manner may be: a resource block at a fixed location in the traffic channel (for example, a resource block with the smallest or largest resource index number) is used to transmit the channel state information; or a fixed resource in the traffic channel is used to transmit the channel state information, For example, the symbols on both sides of the reference signal symbol are used to transmit the second channel state information, or the start or end of the service resource mapping is used to transmit the second channel state information, and the specific resource usage is determined according to the load of the second channel state information. Further, the data of the traffic channel is matched according to the resource occupancy of the second channel state information, or the data of the traffic channel is punctured according to the resource occupation of the second channel state information. .
- the second channel state information may be feedback information that is periodically transmitted, or may be feedback information of non-periodic transmission.
- the network node receives the second channel state information according to the configuration.
- the D2D channel state information can be transmitted in a high-level configuration.
- the eNB configures the transmission period and the transmission subframe position of the D2D channel state information transmitted by the UE through RRC signaling, and the UE transmits the D2D channel state information in the configured subframe according to the configured period. .
- the transmission of D2D channel state information can be triggered by a reference signal.
- the UE transmits the D2D channel state information in the subframe n+k based on the measurement of the measurement reference signal.
- the subframe n+k herein may be the first feedback subframe of the UE that satisfs that k is greater than the fixed subframe interval, for example, k>3, and the feedback subframe may be the first channel state information (such as the cellular link channel state).
- the transmission subframe of the information, or the transmission subframe of the second channel state information (such as D2D link channel state information).
- the subframe n+k may also be the first traffic channel transmission of the UE that satisfies k being greater than the fixed subframe interval.
- the sub-frame, the traffic channel may be a D2D link traffic channel or a cellular link uplink traffic channel.
- the transmission of D2D channel state information can be triggered by trigger signaling.
- the UE is dynamically triggered to transmit D2D channel state information by using trigger signaling in the authorization information.
- the authorization information may be an uplink grant for scheduling cellular uplink data transmission, or may be authorization information for scheduling D2D link data transmission.
- the transmission of D2D channel state information may be triggered or scheduled by authorization information.
- the authorization information may be dedicated authorization information, which is used only to trigger the UE to perform D2D channel state information transmission; or the authorization information has a specific identifier, where the specific identifier indicates that the authorization information is used to trigger the UE to perform D2D channel state information. transmission.
- the dedicated authorization information is set to trigger the UE to transmit D2D channel state information.
- the dedicated means that the authorization information has a different format from the authorization information that the scheduling UE performs data reception/transmission.
- the authorization information for scheduling the UE to perform D2D channel state information feedback may be the same as the authorization information for scheduling the UE to receive/send data (for example, using DCI format 0/4, or using a control information format for scheduling D2D communication), but
- the authorization information has a special identifier, indicating that the authorization information is used to schedule the UE to perform D2D channel state information transmission.
- the grant information uses a dedicated Radio Network Temporary Identifier (RNTI), or uses a dedicated identifier to scramble the Cyclic Redundancy Check (CRC), or specific parameters in the grant information have specific values, such as MCS and redundancy.
- RNTI Radio Network Temporary Identifier
- CRC Cyclic Redundancy Check
- specific parameters in the grant information have specific values, such as MCS and redundancy.
- the Modulation and coding scheme and redundancy version parameter takes a specific value, such as 11111, or 00000.
- the transmission of D2D channel state information can be triggered by a combination of the different ways described above.
- the period and/or the subframe position of the D2D channel state information transmission is configured by the high layer signaling, but the UE transmits the channel state information only after receiving the trigger signaling.
- the channel status information is sent only after the UE detects the measurement reference signal.
- the period and/or the subframe position of the D2D channel state information transmission is configured by the high layer signaling, but the UE transmits the channel state information only after detecting the authorization information for scheduling the D2D channel state information transmission.
- the second channel state information may be obtained by the first device according to the reference signal sent by the second device.
- the reference signal sent by the second device may be a measurement reference signal for channel state measurement, such as CSI-RS, or SRS, or other dedicated measurement reference signal designed for D2D communication; or may be a second device
- the transmitted demodulation reference signal such as a demodulation reference signal (DMRS)
- DMRS demodulation reference signal
- processing channel state information in the embodiment of the present invention may represent the process shown in FIG. 5, and the process includes the following steps:
- Step 510 Send, by using the first link, second channel state information of the second link to the network node.
- Step 520 The network node processes the received second channel state information.
- the apparatus for processing channel state information includes: a sending module, configured to send second channel state information of the second link to the network node by using the first link;
- the first link is a cellular communication link of the device to the network node
- the second link is a device-to-device communication link between a second device capable of communicating with the device and the device .
- the first channel state information is channel state information of a communication link of the network node to the first device.
- the device also includes:
- a priority determining module configured to determine the first channel state information and/or the second channel state information according to a priority principle when the first channel state information needs to be transmitted while transmitting the second channel state information Priority of transmission; the priority principle is: abandoning part or all of the first channel state information; or discarding part or all of the second channel state information; or giving up the first channel state information at the same time a portion and a portion of the second channel state information;
- the multiplexing module is configured to: when the first channel state information needs to be transmitted while transmitting the second channel state information, perform the first channel state information and the second channel state information Reuse
- the sending module Transmitting, by the sending module, the first channel state information and/or the PUCCH resource or the PUSCH resource configured for transmitting the first channel state information according to the processing of the priority determining module and/or the multiplexing module Or the second channel state information.
- the second channel state information is periodically fed back channel state information;
- the device includes: a receiving module;
- the receiving module is configured to receive high layer signaling, where the high layer signaling is used to configure a transmission period of the second channel state information, and the second channel state information is transmitted according to the period; or
- the receiving module is configured to receive measurement pilot configuration signaling of the second link, and the second channel state information is transmitted according to the configured measurement pilot period.
- the device includes: a receiving module
- the receiving module is configured to receive measurement pilot configuration signaling of the second link, where transmission of the second channel state information is triggered by transmission of the measurement pilot;
- the receiving module is configured to receive trigger signaling sent by the network node, where the transmission of the second channel state information is triggered by the trigger signaling.
- the second channel state information is transmitted through a dedicated resource;
- the device includes: a receiving module, configured to receive high-level configuration signaling from a network node, where the high-level configuration signaling is used to configure the dedicated resource; or the receiving module is configured to receive authorization information from a network node, The authorization information is used to dynamically authorize the dedicated resource; or the dedicated resource is located in a cellular link traffic channel transmission resource allocated for the device, and the dedicated resource is determined according to an agreed manner.
- the transmitting module is configured to: send the second channel state information according to the configuration of the high layer signaling, or send the second channel according to the measurement pilot transmission.
- Channel status information or,
- the receiving module is further configured to receive trigger signaling, and the sending module is configured to send the second channel state information according to the trigger signaling.
- the method includes: transmitting, by the fixed location of the traffic channel transmission resource, the second channel state information;
- the device further includes a traffic channel processing module, configured to perform rate matching on the data of the traffic channel according to the resource occupancy of the second channel state information, or, according to the data, the data of the traffic channel The resource occupancy of the two-channel state information is punctured.
- a traffic channel processing module configured to perform rate matching on the data of the traffic channel according to the resource occupancy of the second channel state information, or, according to the data, the data of the traffic channel The resource occupancy of the two-channel state information is punctured.
- the device When the transmission of the second channel state information is triggered by the transmission of the measurement pilot, the device is configured to transmit the second channel state information according to the transmission of the measurement pilot;
- the device When the transmission of the second channel state information is triggered by the trigger signaling, the device is configured to send the second channel state information according to the trigger signaling.
- the device is a first device capable of communicating with the second device: a user equipment UE.
- a receiving module configured to receive, by using the first link, a second link of the second link sent by the first device Channel status information
- the first link is a communication link of a first device to the device
- the second link is a device-to-device communication between a second device capable of communicating with the first device and the first device link.
- the resource for receiving the second channel state information is a transmission resource of the first channel state information allocated to the first device
- the first channel state information is channel state information of a communication link of the device to the first device.
- the resource for receiving the second channel state information is a PUCCH resource or a PUSCH resource configured for transmitting the first channel state information; and/or,
- the first device transmits the first channel state information and/or the second channel state information according to a priority principle, or And multiplexing the first channel state information and the second channel state information; the device parsing the first channel state information and/or the first according to the priority principle or the multiplexing manner Two channel status information;
- the priority principle is: discarding part or all of the first channel state information; or discarding part or all of the second channel state information; or simultaneously discarding the portion of the first channel state information and the Part of the two-channel status information.
- the second channel state information is channel state information that is periodically transmitted
- the device includes: a sending module, configured to send configuration signaling; the configuration signaling is high layer signaling, configured to configure a transmission period of the second channel state information, and the second channel state information is according to the transmitting Periodic transmission; or,
- a sending module configured to send configuration signaling, where the configuration signaling is used to configure transmission of the measurement pilot of the first device on the second link, and the second channel state information is according to the measurement pilot The transmission is transmitted.
- the device includes a configuration module configured to configure measurement pilot transmission of the second link, and transmission of the second channel state information is triggered by transmission of the measurement pilot; or
- the apparatus includes a transmitting module configured to send trigger signaling, the trigger signaling being used to trigger transmission of the second channel state information.
- the resource that receives the second channel state information is a dedicated resource
- the device includes: a dedicated resource configuration module configured to configure a dedicated resource for transmission of the second channel state information; and a sending module configured to send resource configuration signaling according to the configuration of the dedicated resource configuration module;
- the resource configuration signaling is high layer signaling; or the resource configuration signaling is dynamic authorization signaling;
- the dedicated resource is located in a traffic channel transmission resource allocated for the first device, and the dedicated resource is determined in an agreed manner.
- the receiving module is configured to receive the second channel state information according to the configuration of the high layer signaling;
- the device includes a configuration module configured to configure transmission of a measurement pilot, the transmission of the second channel state information is triggered by transmission of the measurement pilot, and the receiving module is configured to receive according to the configuration of the measurement pilot The second channel state information; or
- the device includes a sending module, configured to send trigger signaling, where the trigger signaling is used to trigger transmission of the second channel state information, and the receiving module is configured to receive the second channel according to the trigger signaling status information.
- the method includes: appointing that the first device transmits the fixed location of the service channel transmission resource And the second channel state information; and: performing rate matching on the data of the traffic channel according to the resource occupancy of the second channel state information, or performing data on the traffic channel according to the second channel state information. Resource occupation Punching the situation;
- the apparatus includes: a traffic channel processing module configured to determine the dedicated resource according to the agreed manner for the received traffic channel, and parse the second channel state information in the dedicated resource.
- the device includes:
- a configuration module configured to configure transmission of a measurement pilot, where transmission of the second channel state information is triggered by transmission of the measurement pilot, and the receiving module receives the second channel state according to the configuration of the measurement pilot Information
- the sending module is configured to send the triggering signaling, where the triggering signaling is used to trigger the first device to perform the transmission of the second channel state information, and the receiving module receives the first according to the trigger signaling.
- Two-channel status information Two-channel status information.
- the device also includes:
- a scheduling module configured to schedule data transmission of the second link according to the second channel state information.
- the device is a network node.
- the processing system of the channel state information of the embodiment of the present invention includes a network node and a first device, where the network node is configured to control that the first device sends a second link to the network node by using the first link.
- the first link is a cellular communication link of the first device to the network node
- the second link is a device between the second device capable of communicating with the first device and the first device Device communication link.
- modules or steps of the embodiments of the present invention can be implemented by a general computing device, which can be concentrated on a single computing device or distributed in multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device so that they can be stored in the storage device by the computing device The implementation is performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated into a single integrated circuit module. Thus, embodiments of the invention are not limited to any specific combination of hardware and software.
- the foregoing sending module may be a transmitter or the like; the multiplexing module may be a multiplexer or the like; the receiving module may be a receiver, etc.; a priority determining module, a traffic channel processing module, a configuration module, and a dedicated resource configuration module;
- the scheduling module may be a single chip microcomputer, a chip, or the like capable of performing corresponding operations.
- the method for processing channel state information in the embodiment of the present invention solves the problem of channel state information transmission during D2D communication in a cellular communication system, and is D2D, in addition to the method and the device and system capable of implementing the method.
- the scheduling of the communication provides a basis for ensuring the resource utilization of the D2D communication; and the embodiment of the present invention also realizes the compatibility of the D2D communication and the cellular communication without significantly increasing the complexity of the design and implementation of the user equipment.
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Abstract
本发明公开了一种信道状态信息的处理方法、装置和系统,可以通过第一链路向网络节点发送第二链路的第二信道状态信息;所述第一链路是第一设备到所述网络节点的蜂窝通信链路,所述第二链路是能够与所述第一设备通信的第二设备与所述第一设备间的D2D通信链路。本发明处理信道状态信息的技术解决了蜂窝通信系统中的D2D通信时信道状态信息传输的问题,进而为D2D通信时的调度提供了依据,保证D2D通信的资源利用率;并且,在没有显著增加用户设备的设计和实现的复杂度的情况下,本发明还实现了D2D通信与蜂窝通信的兼容。
Description
一种信道状态信息的处理方法、 装置和系统 技术领域
本发明涉及通信领域, 尤其涉及一种信道状态信息的处理方法、 装置 和系统。 背景技术
蜂窝通信系统实现了对有限频谱资源的复用, 使得无线通信技术得到 了蓬勃发展。 在蜂窝通信系统中, 当两个用户设备(User Equipment, UE ) 之间有业务需要传输时, UE1到 UE2的业务数据, 会首先通过空口传输给 基站 1, 基站 1通过核心网将所述业务数据传输给基站 2, 基站 2再将所述 业务数据通过空口传输给 UE2。如图 1所示, 当 UE1和 UE2位于同一个小 区时, 虽然基站 1和基站 2是同一个站点, 然而一次数据传输仍然会消耗 两份无线频谱资源。
由此可见, 如果 UE1和 UE2位于同一小区并且相距较近, 那么上述的 蜂窝通信方法显然不是最优的通信方式。 而实际上, 随着移动通信业务的 多样化, 使得近距离用户之间的业务传输需求日益增长。 因此, 设备到设 备(Device-to-Device, D2D ) 的通信模式日益受到关注。 所述 D2D (如图 2所示 )指业务数据不经过基站进行转发, 而是直接由源用户设备通过空口 传输给目标用户设备。 这种通信模式区别于传统蜂窝通信系统的通信模式。 对于近距离通信的用户来说, D2D 不但节省了无线频谱资源, 而且降低了 核心网的数据传输压力。
在蜂窝通信中, 调度(scheduling ) 的依据之一是信道状况。 即在收发 端传输参考信号(Reference Signal, RS ), 根据对参考信号的测量获得网络 节点与用户设备之间的信道状态信息( Channel State Information, CSI ), 并
以此信道状态信息作为调度的依据之一。 所述参考信号通常也称为导频
( pilot )。
在蜂窝通信系统中引入 D2D通信, 同样涉及业务传输的调度问题。即, 调度 UE进行 D2D通信时, 需要以 UE之间的信道状态信息作为调度的依 据。 针对支持 D2D通信的系统中信道状态信息传输的问题, 目前相关技术 中暂时没有具体的解决方案。 发明内容
有鉴于此, 本发明实施例的主要目的在于提供一种信道状态信息的处 理方法、 装置和系统, 以解决支持 D2D通信的通信系统中信道状态信息的 传输问题。
为达到上述目的, 本发明实施例的技术方案是这样实现的:
一种信道状态信息的处理方法, 包括:
通过第一链路向网络节点发送第二链路的第二信道状态信息; 所述第一链路是第一设备到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述第一设备通信的第二设备与所述第一设备间的设备到设 备 D2D通信链路。
其中, 通过第一链路中第一信道状态信息的传输资源传输所述第二信 道状态信息;
所述第一信道状态信息是所述网络节点到所述第一设备的通信链路的 信道状态信息。
其中, 通过第一链路中第一信道状态信息的传输资源传输所述第二信 道状态信息的方法为: 通过为传输所述第一信道状态信息所配置的物理上 行控制信道 PUCCH资源或物理上行共享信道 PUSCH资源传输所述第二信 道状态信息; 和 /或,
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要
传输, 则依据优先级原则传输所述第一信道状态信息和 /或第二信道状态信 息; 或者将所述第一信道状态信息和所述第二信道状态信息复用后传输; 所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
其中, 所述第二信道状态信息是周期性反馈的信道状态信息; 所述第二信道状态信息按照高层信令配置的反馈周期进行传输; 或者, 所述第二信道状态信息按照配置的测量导频的发送周期进行传输。 其中, 所述第二信道状态信息的传输由测量导频的传输触发; 或者, 所述第二信道状态信息的传输由触发信令触发, 所述触发信令由所述 网络节点发送。
其中, 在专用资源中传输所述第二信道状态信息, 所述专用资源是指 专用于传输所述第二信道状态信息的资源;
所述专用资源由所述网络节点通过高层信令配置; 或者, 所述专用资 源由所述网络节点通过授权信令动态授权; 或者, 所述专用资源位于为所 述第一设备分配的蜂窝链路业务信道传输资源中, 并且所述专用资源按照 约定的方式确定。
其中, 所述专用资源由所述网络节点通过高层信令配置时,
所述第一设备按照所述高层信令的配置发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输由测量导频的传输触发, 所述第一设备 按照测量导频的传输发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输由触发信令触发, 所述第一设备根据所 述触发信令发送所述第二信道状态信息。
其中, 所述专用资源由所述网络节点通过授权信令动态授权时,
所述第一设备接收所述网络节点发送的用于指示传输所述第二信道状 态信息的授权信令, 基于所述授权信令确定传输所述第二信道状态信息的 资源, 并在所述资源中发送所述第二信道状态信息。
其中, 所述专用资源位于为所述第一设备分配的业务信道传输资源中, 按照约定的方式确定所述专用资源时, 在所述业务信道传输资源的固定位 置传输所述第二信道状态信息;
以及, 对所述业务信道的数据按照所述第二信道状态信息的资源占用 情况进行速率匹配, 或者, 对所述业务信道的数据按照所述第二信道状态 信息的资源占用情况进行打孔。
其中, 所述第二信道状态信息的传输由测量导频的传输触发, 所述第 一设备按照测量导频的传输发送所述第二信道状态信息; 或者, 所述第二 信道状态信息的传输由触发信令触发, 所述第一设备根据所述触发信令发 送所述第二信道状态信息。
其中, 该方法还包括:
所述网络节点根据所述第二信道状态信息调度所述第二链路的数据传 输。
一种信道状态信息的处理方法, 包括:
通过第一链路接收第一设备发送的第二链路的第二信道状态信息; 所述第一链路是第一设备到网络节点的蜂窝通信链路, 所述第二链路 是能够与所述第一设备通信的第二设备与所述第一设备间的设备到设备通 信链路。
其中, 接收所述第二信道状态信息的资源是为所述第一设备分配的第 一信道状态信息的传输资源;
所述第一信道状态信息是网络节点到所述第一设备的通信链路的信道 状态信息。
其中,所述资源是为传输所述第一信道状态信息所配置的 PUCCH资源 或 PUSCH资源; 和 /或,
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则所述第一设备依据优先级原则传输所述第一信道状态信息和 /或第 二信道状态信息; 或者将所述第一信道状态信息和所述第二信道状态信息 复用后传输; 所述网络节点根据所述优先级原则或者所述复用方式解析所 述第一信道状态信息和 /或第二信道状态信息;
所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
其中, 所述第二信道状态信息是周期性传输的信道状态信息; 所述网络节点通过高层信令配置所述第二信道状态信息的传输周期; 或者,
所述网络节点配置所述第二链路的测量导频传输, 所述第二信道状态 信 , ¾按照配置的测量导频的周期进行传输。
其中, 所述网络节点配置测量导频的传输, 所述测量导频的传输触发 所述第二信道状态信息的传输; 或者,
所述网络节点发送用于触发所述第二信道状态信息传输的触发信令。 其中, 网络节点配置专用资源用于所述第二信道状态信息的传输; 所述专用资源由网络节点通过高层信令配置; 或者, 所述专用资源由 网络节点通过授权信令动态授权; 或者, 所述专用资源位于为所述第一设 备分配的蜂窝链路业务信道传输资源中, 并且所述专用资源按照约定的方 式确定。
其中, 所述网络节点配置专用资源用于所述第二信道状态信息的传输 时,
网络节点通过高层信令配置所述第二信道状态信息的传输, 所述网络 节点根据所述配置在所述专用资源中接收所述第二信道状态信息; 或者, 网络节点配置所述第二链路的测量导频的传输, 所述测量导频的传输 触发所述第二信道状态信息的传输, 所述网络节点根据所述测量导频的配 置在所述专用资源中接收所述第二信道状态信息; 或者,
网络节点发送用于触发所述第二信道状态信息传输的触发信令, 并在 所述专用资源中接收所述第二信道状态信息。
其中, 所述专用资源由网络节点通过授权信令动态授权时,
网络节点发送指示传输所述第二信道状态信息的授权信令, 并按照所 述授权信令接收所述第二信道状态信息。
其中, 所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且按照约定的方式确定具体的专用资源时, 约定所述第一设备在所述业 务信道传输资源的固定位置传输所述第二信道状态信息; 以及, 约定对所 述业务信道的数据按照所述第二信道状态信息的资源占用情况进行速率匹 配, 或者, 约定对所述业务信道的数据按照所述第二信道状态信息的资源 占用情况进行打孔; 资源中接收所述第二信道状态信息。
其中, 该方法还包括:
网络节点配置测量导频的传输, 所述第二信道状态信息的传输由所述 测量导频的传输触发;
或者, 网络节点发送触发信令, 所述触发信令用于触发所述第一设备 进行所述第二信道状态信息的传输。
其中, 网络节点还根据所述第二信道状态信息调度所述第二链路的数 据传输。
一种信道状态信息的处理装置, 包括:
发送模块, 配置为通过第一链路向网络节点发送第二链路的第二信道 状态信息;
所述第一链路是所述装置到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述装置通信的第二设备与所述装置间的设备到设备通信链 路。
其中, 所述第二信道状态信息通过第一链路中第一信道状态信息的传 输资源进行传输;
所述第一信道状态信息是所述网络节点到所述第一设备的通信链路的 信道状态信息。
其中, 所述装置还包括:
优先级确定模块, 配置为当传输所述第二信道状态信息的同时有所述 第一信道状态信息需要传输时, 依据优先级原则确定所述第一信道状态信 息和 /或第二信道状态信息传输的优先级; 所述优先级原则为: 放弃所述第 一信道状态信息的部分或者全部; 或者放弃所述第二信道状态信息的部分 或者全部; 或者同时放弃所述第一信道状态信息的部分以及所述第二信道 状态信息的部分;
和 /或, 复用模块, 配置为当传输所述第二信道状态信息的同时有所述 第一信道状态信息需要传输时, 将所述第一信道状态信息和所述第二信道 状态信息进行复用;
所述发送模块根据所述优先级确定模块和 /或所述复用模块的处理, 通 过为传输所述第一信道状态信息所配置的 PUCCH资源或 PUSCH资源传输 所述第一信道状态信息和 /或所述第二信道状态信息。
其中: 所述第二信道状态信息是周期性反馈的信道状态信息; 所述装 置包括: 接收模块;
所述接收模块配置为接收高层信令, 所述高层信令用于配置所述第二 信道状态信息的传输周期, 所述第二信道状态信息按照所述周期进行传输; 或者,
所述接收模块配置为接收所述第二链路的测量导频配置信令, 所述第 二信道状态信息按照所述配置的测量导频的周期进行传输。
其中, 所述装置包括: 接收模块;
所述接收模块配置为接收所述第二链路的测量导频配置信令, 所述第 二信道状态信息的传输由所述测量导频的传输触发; 或者,
所述接收模块配置为接收网络节点发送的触发信令, 所述第二信道状 态信息的传输由所述触发信令触发。
其中, 所述第二信道状态信息通过专用资源进行传输;
所述装置包括: 接收模块, 配置为接收来自网络节点的高层配置信令, 所述高层配置信令用于配置所述专用资源; 或者, 所述接收模块配置为接 收来自网络节点的授权信息, 所述授权信息用于动态授权所述专用资源; 或者, 所述专用资源位于为所述装置分配的蜂窝链路业务信道传输资 源中, 并且所述专用资源按照约定的方式确定。
其中, 应用高层配置信令配置所述专用资源时, 所述发送模块, 配置 为:
按照所述高层信令的配置发送所述第二信道状态信息; 或者, 按照测量导频的传输发送所述第二信道状态信息; 或者,
所述接收模块还配置为接收触发信令, 所述发送模块配置为根据所述 触发信令发送所述第二信道状态信息。
其中, 所述专用资源位于为所述装置分配的业务信道传输资源中, 并 且按照约定的方式确定具体的专用资源时, 包括: 在所述业务信道传输资 源的固定位置传输所述第二信道状态信息;
以及, 所述装置还包括业务信道处理模块, 配置为对所述业务信道的 数据按照所述第二信道状态信息的资源占用情况进行速率匹配, 或者, 对 所述业务信道的数据按照所述第二信道状态信息的资源占用情况进行打 孔。
其中, 所述第二信道状态信息的传输由测量导频的传输触发时, 所述 装置配置为按照测量导频的传输发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输由触发信令触发时, 所述装置配置为根 据所述触发信令发送所述第二信道状态信息。
其中,所述装置是能够与所述第二设备通信的第一设备:用户设备 UE。 一种信道状态信息的处理装置, 包括:
接收模块, 配置为通过第一链路接收第一设备发送的第二链路的第二 信道状态信息;
所述第一链路是第一设备到所述装置的通信链路, 所述第二链路是能 够与所述第一设备通信的第二设备与所述第一设备间的设备到设备通信链 路。
其中: 用于接收所述第二信道状态信息的资源是为所述第一设备分配 的第一信道状态信息的传输资源;
所述第一信道状态信息是所述装置到所述第一设备的通信链路的信道 状态信息。
其中, 用于接收所述第二信道状态信息的资源是为传输所述第一信道 状态信息所配置的 PUCCH资源或 PUSCH资源; 和 /或,
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则所述第一设备依据优先级原则传输所述第一信道状态信息和 /或第 二信道状态信息, 或者将所述第一信道状态信息和所述第二信道状态信息 复用后传输; 所述装置根据所述优先级原则或所述复用方式解析所述第一
信道状态信息和 /或所述第二信道状态信息;
所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
其中: 所述第二信道状态信息是周期性传输的信道状态信息; 所述装置包括: 发送模块, 配置为发送配置信令; 所述配置信令是高 层信令, 用于配置所述第二信道状态信息的传输周期, 所述第二信道状态 信息按照所述传输周期传输; 或者,
发送模块, 配置为发送配置信令, 所述配置信令用于配置所述第一设 备在所述第二链路的测量导频的传输, 所述第二信道状态信息按照所述测 量导频的传输进行传输。
其中: 所述装置包括配置模块, 配置为配置所述第二链路的测量导频 传输, 所述第二信道状态信息的传输由所述测量导频的传输触发; 或者, 所述装置包括发送模块, 配置为发送触发信令, 所述触发信令用于触 发所述第二信道状态信息的传输。
其中: 接收所述第二信道状态信息的资源是专用资源;
所述装置包括: 专用资源配置模块, 配置为配置专用资源以用于所述 第二信道状态信息的传输; 发送模块, 配置为根据所述专用资源配置模块 的配置发送资源配置信令; 所述资源配置信令是高层信令; 或者, 所述资 源配置信令是动态授权信令;
或者, 所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且所述专用资源按照约定的方式确定。
其中, 所述资源配置信令是高层信令时,
所述接收模块配置为按照所述高层信令的配置接收所述第二信道状态 信息; 或者,
所述装置包括配置模块, 配置为配置测量导频的传输, 所述第二信道 状态信息的传输由所述测量导频的传输触发, 所述接收模块配置为根据所 述测量导频的配置接收所述第二信道状态信息; 或者,
所述装置包括发送模块, 配置为发送触发信令, 所述触发信令用于触 发所述第二信道状态信息的传输, 所述接收模块配置为根据所述触发信令 接收所述第二信道状态信息。
其中, 所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且按照约定的方式确定具体的专用资源时, 包括: 约定所述第一设备在 所述业务信道传输资源的固定位置传输所述第二信道状态信息; 以及, 对 所述业务信道的数据按照所述第二信道状态信息的资源占用情况进行速率 匹配, 或者, 对所述业务信道的数据按照所述第二信道状态信息的资源占 用情况进行打孔;
所述装置包括: 业务信道处理模块, 配置为对接收到的业务信道, 按 照所述约定的方式确定所述专用资源, 并在所述专用资源中解析所述第二 信道状态信息。
其中, 所述装置包括:
配置模块, 配置为配置测量导频的传输, 所述第二信道状态信息的传 输由所述测量导频的传输触发, 所述接收模块根据所述测量导频的配置接 收所述第二信道状态信息;
或者, 发送模块, 配置为发送触发信令, 所述触发信令用于触发所述 第一设备进行所述第二信道状态信息的传输, 所述接收模块根据所述触发 信令接收所述第二信道状态信息。
其中, 所述装置还包括:
调度模块, 配置为根据所述第二信道状态信息调度所述第二链路的数 据传输。
其中, 所述装置是网络节点。
一种信道状态信息的处理系统, 包括网络节点、 第一设备; 其中, 所 述网络节点配置为控制所述第一设备通过第一链路向所述网络节点发送第 二链路的第二信道状态信息;
所述第一链路是第一设备到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述第一设备通信的第二设备与所述第一设备间的设备到设 备通信链路。
本发明实施例解决了蜂窝通信系统中的 D2D通信时信道状态信息传输 的问题,进而为 D2D通信时的调度提供了依据,保证 D2D通信的资源利用 率。 附图说明
图 1为 UE位于同一小区时的蜂窝通信示意图;
图 2为 D2D通信示意图;
图 3为本发明实施例的长期演进 ( Long Term Evolution, LTE ) /先进的 长期演进( LTE-Advanced, LTE-A ) 系统无线帧结构示意图;
图 4为本发明实施例的 LTE/LTE-A系统 S子帧结构示意图; 图 5为本发明实施例的信道状态信息处理流程图。 具体实施方式
在实际应用中, 可以通过第一链路向网络节点发送第二链路的第二信 道状态信息;
所述第一链路是第一设备到所述网络节点的蜂窝通信链路, 所述第二 链路是第二设备与所述第一设备间的设备到设备通信链路。
所述网络节点可以根据所述第二信道状态信息调度所述第二链路的数 据传输。
可以通过第一链路中第一信道状态信息的传输资源传输所述第二信道 状态信息;
所述第一信道状态信息是所述网络节点到所述第一设备的通信链路的 信道状态信息。
所述第一信道状态信息可以是周期性 ( periodic )反馈的信道状态信息。 这时, 通过第一链路中第一信道状态信息的传输资源传输所述第二信道状 态信息的方法可以为: 通过为传输所述第一信道状态信息所配置的 PUCCH ( Physical Uplink Control Channel,物理上行控制信道)或 PUSCH ( Physical Uplink Shared Channel, 物理上行共享信道) 资源传输所述第二信道状态信 息;
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则依据优先级原则传输所述第一信道状态信息和 /或第二信道状态信 息; 或者将所述第一信道状态信息和所述第二信道状态信息复用后传输; 所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
所述第二信道状态信息可以按照高层信令配置的反馈周期进行传输; 或者,
所述第二信道状态信息可以按照配置的测量导频的周期进行传输。 另外, 所述第一信道状态信息也可以是非周期性(aperiodic )反馈的信 道状态信息。 这时, 通过第一链路中第一信道状态信息的传输资源传输所 述第二信道状态信息的方法可以为: 通过为传输所述第一信道状态信息所 配置的 PUCCH或 PUSCH资源传输所述第二信道状态信息;
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则依据优先级原则传输所述第一信道状态信息和 /或第二信道状态信
息; 或者将所述第一信道状态信息和所述第二信道状态信息复用后传输; 所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
当所述第一信道状态信息是非周期性反馈的信道状态信息时, 所述第 二信道状态信息的传输可以由测量导频的传输触发; 或者, 所述第二信道 状态信息的传输可以由触发信令触发, 所述触发信令由所述网络节点发送。
需要说明的是, 与通过第一链路中第一信道状态信息的传输资源传输 所述第二信道状态信息不同, 在实际应用中, 也可以配置专用资源用于所 述第二信道状态信息的传输;
所述专用资源可以由所述网络节点通过高层信令配置; 或者, 所述专 用资源可以由所述网络节点通过授权信令动态授权; 或者, 所述专用资源 可以位于为所述第一设备分配的业务信道传输资源中, 并且所述专用资源 按照约定的方式确定。
所述专用资源由所述网络节点通过高层信令配置时, 所述网络节点可 以发送用于指示传输所述第二信道状态信息的无线资源控制 ( Radio Resource Control, RRC )信令, 所述第一设备基于所述 RRC信令确定传输 所述第二信道状态信息的资源;
所述第二信道状态信息的传输可以是周期性的;
所述第二信道状态信息的传输可以由所述网络节点通过高层信令配 置, 所述第一设备按照所述高层信令的配置周期性发送所述第二信道状态 信息; 或者,
所述第二信道状态信息的传输可以由测量导频的传输触发, 所述第一 设备按照测量导频的传输发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输可以由触发信令(例如可以是位于 DCI
( Downlink Control Information, 下行控制信息) 中的触发信令, 或者位于 调度 D2D通信的授权信息中的触发信令)触发, 所述第一设备根据所述触 发信令发送所述第二信道状态信息。
所述专用资源由所述网络节点通过授权信令动态授权时, 所述网络节 点可以发送用于指示传输所述第二信道状态信息的授权信令, 所述第一设 备基于所述授权信令确定传输所述第二信道状态信息的资源, 并在所述资 源中发送所述第二信道状态信息。
所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且 按照约定的方式确定具体的专用资源时, 可以在所述业务信道传输资源的 固定位置传输所述第二信道状态信息; 对所述业务信道的数据按照所述第 二信道状态信息的资源占用情况进行速率匹配, 或者, 对所述业务信道的 数据按照所述第二信道状态信息的资源占用情况进行打孔。 并且, 在这种 情况下, 所述第二信道状态信息的传输可以由测量导频的传输触发, 所述 第一设备按照测量导频的传输发送所述第二信道状态信息; 或者, 所述第 二信道状态信息的传输可以由触发信令(例如可以是位于 DCI中的触发信 令, 或者位于调度 D2D通信的授权信息中的触发信令)触发, 所述第一设 备根据所述触发信令发送所述第二信道状态信息。
下面结合附图和实施例详细说明本发明。 需要说明的是, 在不冲突的 由于无线信道的时变与不可预测特性, 导致信道状况也处于时变的状 态。 因此, 通过自适应编码调制 ( Adaptive Modulation and Coding, AMC ) 实时进行数据传输的码率和调制方式(这种数据传输的码率和调制方式在 有些系统中称为调制编码方式( Modulation and Coding Scheme, MCS ) )的 调整, 可以明显改善无线通信系统的频谱效率。
在系统中应用自适应编码调制时, 如果有 CSI作为调整 MCS的依据,
可以获得更准确的调度, 因而可以更好地发挥自适应编码调制的性能优势。 而信道状态信息通常由数据接收端基于对参考信号的测量获得, 并上报到 对传输进行调度的网络节点处。 在蜂窝通信系统中引入 D2D通信时, 也会 面临类似问题, 即需要将信道状态信息上报到对传输进行调度的网络节点 处。
以下的相关示例性实施例以 3GPP ( 3rd Generation Partnership Project ) LTE/LTE-A蜂窝通信系统为背景进行介绍。 LTE/LTE-A 系统下行链路以 OFDM ( Orthogonal Frequency Division Multiplexing, 正交频分复用 )技术 为基础, 上行链路则采用单载波频分复用接入 ( Single carrier-Frequency Division Multiplexing Access, SC-FDMA ) 多址方式。 在 OFDM/SC-FDMA 系统中, 通信资源是时-频两维的形式。 例如, 对于 LTE/LTE-A系统来说, 上行和下行链路的通信资源在时间方向上都是以帧 (frame ) 为单位进行划 分的, 每个无线帧 (radio frame ) 的长度为 10 ms, 包含 10个长度为 1 ms 的子帧 ( sub-frame ), 每个子帧包括长度为 0.5ms的两个时隙 (slot ), 如图 3所示。
在频率方向, 资源以子载波(subcarrier ) 为单位进行划分, 频域资源 分配的最小单位是 RB( Resource Block,资源块),对应物理资源的一个 PRB ( Physical RB, 物理资源块)。 一个 PRB在频域包含 12个子载波, 对应于 时域的一个时隙。 每个 OFDM符号上对应一个子载波的资源称为资源单元 ( Resource Element, RE ), 如图 4所示。
在 LTE/LTE-A 蜂窝通信系统中, 下行链路的测量主要基于 CRS ( Cell-specific Reference Signal, 小区专用参考信号, 或称为公共参考信号) 和 CSI-RS ( Channel State Information-Reference Signal, 信道状态信息参考 信号 )实现, 下行链路的数据传输基于 UE反馈的 CRS或 CSI-RS的测量结 果进行调度; 上行链路的测量一般基于 SRS ( Sounding Reference Signal,
探测参考信号) 实现, 上行链路的数据传输基于网络侧对 SRS的测量结果 进行调度。 在 TDD系统中, 由于上行和下行链路使用相同的频带, 因此在 进行下行传输的调度时, 也可基于 SRS的测量结果, 即利用信道的互异性 ( reciprocity )。
本发明实施例所描述的网络节点在 LTE/LTE-A系统中即指网络侧的节 点, 例如基站(eNB, evolved Node B ), 或者网络侧的其他网元; 设备在 LTE/LTE-A系统中指 UE。
实施例 1 :
在本实施例中, 第一设备通过第一链路向网络节点发送第二链路的第 二信道状态信息; 其中第一链路是该第一设备到网络节点的蜂窝通信链路, 第二链路是第二设备与该第一设备间的设备到设备通信链路。
可以使用第一信道状态信息的传输资源传输第二信道状态信息。 第一 信道状态信息是网络节点到第一设备联路的信道状态信息。 通常, 网络节 点会配置专用资源用于第一信道状态信息的传输。 例如在 LTE/LTE-A系统 中, 基站 ( eNB ) 为 UE配置 PUCCH资源用于周期性反馈 CSI。 当 UE有 第二信道状态信息 (如 D2D链路的信道状态信息)需要反馈时, UE可使 用该 PUCCH资源传输该 D2D链路的信道状态信息。
具体的, 当 UE需要反馈 D2D链路的信道状态信息时, 如果传输该信 道状态信息的子帧中只有 D2D链路的信道状态信息, 那么 UE可以在该子 帧中使用 LTE/LTE-A蜂窝通信系统的 PUCCH格式传输该 D2D链路的信道 状态信息,例如可以是 PUCCH的上行控制信息( Uplink Control Information, UCI )格式 2, 或者 UCI格式 2a, 或者 UCI格式 2b, 或者 UCI格式 3。 信 道状态信息的复用、 编码方式、 资源映射等都可采用蜂窝通信中的上述 PUCCH格式。
当 UE需要反馈 D2D链路的信道状态信息时, 如果传输该信道状态信
息的子帧中同时有待传输的第一信道状态信息 (如蜂窝链路信道状态信 息), UE可依据预先设置的优先级原则确定信道状态信息的传输方式。
预先设置的优先级原则可以是: 蜂窝链路信道状态信息 (即第一信道 状态信息 )的优先级不高于 D2D链路信道状态信息(即第二信道状态信息 ) 的优先级。 这种情况下, 当两者可能在同一个子帧中出现时, 放弃第一信 道状态信息的部分或者全部。 放弃第一信道状态信息的全部是指: 在子帧 中将不再传输第一信道状态信息, 而是在相应的资源中传输第二信道状态 信息。例如放弃秩指示 ( RI )的传输,或者放弃 RI和预编码类型指示 ( PTI ) 的传输, 或者放弃预编码矩阵指示(PMI )和信道质量信息(CQI )的传输。 放弃第一信道状态信息的部分是指: 放弃第一信道状态信息中部分信息的 传输, 例如, 第一信道状态信息中同时传输的信息可能会包括 PMI和 CQI 等, 可以放弃其中的一项 (例如放弃 PMI的传输, 或者放弃 CQI的传输), 剩余的第一信道状态信息与第二信道状态信息复用后在第一信道状态信息 传输资源中传输; 或者, 第一信道状态信息可能会包括多个小区的信道状 态信息, 可以用第二信道状态信息替换其中的一个小区的信道状态信息并 进行传输。
预先设置的优先级原则也可以是: 宽带反馈信息的优先级高于子带反 馈信息的优先级; 和 /或, 第二信道状态信息的优先级高于第一信道状态信 息的优先级。 例如, 当第一信道状态信息和第二信道状态信息的反馈可能 出现在同一个子帧中时, 如果两个信道状态信息中有一个是宽带反馈信息, 则丟弃该宽带反馈信息; 如果两个信道状态信息都是宽带反馈信息或者都 是子带反馈信息, 则丟弃第一信道状态信息的部分或者全部。
预先设置的优先级也可综合考虑反馈开销。 例如, 当反馈的第一信道 状态信息和第二信道状态信息的载荷相加所得的结果没有超过为第一信道 状态信息传输所分配的资源的可承载载荷数时, 将第一信道状态信息和第
二信道状态信息复用后传输; 否则可以使用前述的优先级原则确定待传输 的信道状态信息。
或者, 当 UE需要反馈 D2D链路的信道状态信息时, 如果传输该信道 状态信息的子帧中同时有待传输的蜂窝链路信道状态信息 (如第一信道状 态信息), UE将第一信道状态信息和第二信道状态信息复用后传输。 复用 的方式可参考 LTE/LTE-A系统中多小区信道状态信息的反馈方式。 或者换 句话说, 把第二信道状态信息以蜂窝通信系统中一个小区的信道状态信息 的方式进行传输。
所述第二信道状态信息可以是周期性传输的反馈信息, 也可是非周期 性传输的反馈信息。
网络节点根据所述预设的优先级接收第二信道状态信息。
实施例 2:
在本实施例中, 第一设备通过第一链路向网络节点发送第二链路的第 二信道状态信息; 其中第一链路是该第一设备到网络节点的蜂窝通信链路, 第二链路是第二设备与该第一设备的设备到设备通信链路。
可以使用专用资源传输第二信道状态信息, 该专用资源可以是网络节 点通过高层信令所配置的资源。例如,在 LTE/LTE-A系统中, eNB通过 RRC 信令为 D2D UE配置用于第二信道状态信息传输的资源。 所配置的资源可 以是专用 PUCCH格式资源, 第二信道状态信息的编码和承载方式可参考 LTE/LTE-A蜂窝通信系统中信道状态信息的相关处理方式; 所配置的资源 也可以是专用的资源块, 第二信道状态信息的编码和承载方式可参考 LTE/LTE-A蜂窝通信系统中上行业务信道 PUSCH的处理方式。
或者, 所述专用资源可以是网络节点通过授权信令动态授权的资源。 例如,在 LTE/LTE-A系统中, eNB通过上行授权( UL grant M言息向 D2D UE 授权用于传输第二信道状态信息的资源。 第二信道状态信息的编码和承载
方式可参考 LTE/LTE-A蜂窝通信系统中上行业务信道 PUSCH的处理方式。 或者, 所述专用资源可以是约定的信道状态信息传输资源。 约定的方 式可以是: 业务信道中固定位置的资源块(例如资源索引号最小或者最大 的资源块)用于传输该信道状态信息; 或者, 业务信道中固定的资源用于 传输该信道状态信息, 例如, 参考信号符号两边的符号用于传输第二信道 状态信息, 或者业务资源映射的起始或者末尾用于传输第二信道状态信息, 具体的资源使用量根据第二信道状态信息的载荷确定。 进一步的, 对所述 业务信道的数据按照所述第二信道状态信息的资源占用情况进行速率匹 配, 或者, 对所述业务信道的数据按照所述第二信道状态信息的资源占用 情况进行打孔。
所述第二信道状态信息可以是周期性传输的反馈信息, 也可以是非周 期性传输的反馈信息。
网络节点根据所述配置接收第二信道状态信息。
实施例 3:
D2D信道状态信息可以按照高层的配置进行传输。 例如在 LTE/LTE-A 系统中, eNB通过 RRC信令配置 UE传输 D2D信道状态信息的传输周期和 传输子帧位置, UE按照所配置的周期, 在所配置的子帧中传输 D2D信道 状态信息。
D2D信道状态信息的传输可以通过参考信号触发。 例如在 LTE/LTE-A 系统中, UE在子帧 n检测到其他 UE发送的测量参考信号后, 基于对该测 量参考信号的测量在子帧 n+k发送 D2D信道状态信息。 此处的子帧 n+k可 以是该 UE的满足 k大于固定子帧间隔的第一个反馈子帧, 例如 k>3, 反馈 子帧可以是第一信道状态信息 (如蜂窝链路信道状态信息) 的传输子帧, 或者是第二信道状态信息(如 D2D链路信道状态信息) 的传输子帧。 所述 子帧 n+k也可以是满足 k大于固定子帧间隔的该 UE的第一个业务信道传
输子帧, 业务信道可以是 D2D链路业务信道或者蜂窝链路上行业务信道。
D2D信道状态信息的传输可以由触发信令触发。 例如在 LTE/LTE-A系 统中,通过授权信息中的触发信令, 动态触发 UE传输 D2D信道状态信息。 所述授权信息可以是调度蜂窝上行数据传输的上行授权, 或者可以是调度 D2D链路数据传输的授权信息。 在 UE检测到授权信息后, 如果其中的触 发信令的状态表示 D2D信道状态信息的传输被激活,则 UE发送 D2D信道 状态信息。
D2D信道状态信息的传输可以由授权信息触发或调度。 所述授权信息 可以是专用授权信息, 只用于触发 UE进行 D2D信道状态信息的传输; 或 者所述授权信息具有特定的标识, 该特定的标识表示该授权信息用于触发 UE进行 D2D信道状态信息传输。 例如在 LTE/LTE-A系统中, 设置专用的 授权信息触发 UE传输 D2D信道状态信息; 所述专用是指: 所述授权信息 与调度 UE进行数据接收 /发送的授权信息具有不同的格式。 或者, 调度 UE 进行 D2D信道状态信息反馈的授权信息可与调度 UE进行数据接收 /发送的 授权信息格式相同 (比如使用 DCI格式 0/4, 或者使用调度 D2D通信的控 制信息格式), 只不过该授权信息具有特殊的标识, 表示该授权信息用于调 度 UE进行 D2D信道状态信息传输。 例如, 授权信息使用专用的无线网络 临时标识(RNTI ), 或者使用专用的标识对循环冗余校验(CRC )加扰, 或 者授权信息中的特定参数具有特定的取值, 例如 MCS 和冗余版本 ( Modulation and coding scheme and redundancy version )参数取特定值, 比 如 11111 , 或者 00000等。
D2D信道状态信息的传输可以由上述不同方式组合触发。 例如, 通过 高层信令配置 D2D信道状态信息传输的周期和 /或子帧位置, 但 UE只有接 收到触发信令后才发送信道状态信息。
又比如,通过高层信令配置 D2D信道状态信息传输的周期和 /或子帧位
置, 但 UE只有检测到测量参考信号后, 才发送信道状态信息。 再比如,通过高层信令配置 D2D信道状态信息传输的周期和 /或子帧位 置, 但 UE只有检测到用于调度 D2D信道状态信息传输的授权信息后, 才 发送信道状态信息。
需要说明的是, 第二信道状态信息可以由第一设备根据第二设备发送 的参考信号测量获得。 例如, 第二设备发送的参考信号可以是用于信道状 态测量的测量参考信号, 比如 CSI-RS, 或者是 SRS, 或者是其他的为 D2D 通信设计的专用测量参考信号; 也可以是第二设备发送的解调参考信号, 例如解调参考信号 (DMRS ), 该 DMRS与第二设备发送的 D2D业务信道 可以同时发送。
结合以上描述可知, 本发明实施例处理信道状态信息的操作可以表示 如图 5所示的流程, 该流程包括以下步骤:
步骤 510: 通过第一链路向网络节点发送第二链路的第二信道状态信 息;
步骤 520: 所述网络节点对收到的第二信道状态信息进行处理。
需要说明的是, 本发明实施例信道状态信息的处理装置包括: 发送模块, 配置为通过第一链路向网络节点发送第二链路的第二信道 状态信息;
所述第一链路是所述装置到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述装置通信的第二设备与所述装置间的设备到设备通信链 路。
所述第二信道状态信息通过第一链路中第一信道状态信息的传输资源 进行传输;
所述第一信道状态信息是所述网络节点到所述第一设备的通信链路的 信道状态信息。
所述装置还包括:
优先级确定模块, 配置为当传输所述第二信道状态信息的同时有所述 第一信道状态信息需要传输时, 依据优先级原则确定所述第一信道状态信 息和 /或第二信道状态信息传输的优先级; 所述优先级原则为: 放弃所述第 一信道状态信息的部分或者全部; 或者放弃所述第二信道状态信息的部分 或者全部; 或者同时放弃所述第一信道状态信息的部分以及所述第二信道 状态信息的部分;
和 /或, 复用模块, 配置为当传输所述第二信道状态信息的同时有所述 第一信道状态信息需要传输时, 将所述第一信道状态信息和所述第二信道 状态信息进行复用;
所述发送模块根据所述优先级确定模块和 /或所述复用模块的处理, 通 过为传输所述第一信道状态信息所配置的 PUCCH资源或 PUSCH资源传输 所述第一信道状态信息和 /或所述第二信道状态信息。
所述第二信道状态信息是周期性反馈的信道状态信息; 所述装置包括: 接收模块;
所述接收模块配置为接收高层信令, 所述高层信令用于配置所述第二 信道状态信息的传输周期, 所述第二信道状态信息按照所述周期进行传输; 或者,
所述接收模块配置为接收所述第二链路的测量导频配置信令, 所述第 二信道状态信息按照所述配置的测量导频的周期进行传输。
所述装置包括: 接收模块;
所述接收模块配置为接收所述第二链路的测量导频配置信令, 所述第 二信道状态信息的传输由所述测量导频的传输触发; 或者,
所述接收模块配置为接收网络节点发送的触发信令, 所述第二信道状 态信息的传输由所述触发信令触发。
所述第二信道状态信息通过专用资源进行传输;
所述装置包括: 接收模块, 配置为接收来自网络节点的高层配置信令, 所述高层配置信令用于配置所述专用资源; 或者, 所述接收模块配置为接 收来自网络节点的授权信息, 所述授权信息用于动态授权所述专用资源; 或者, 所述专用资源位于为所述装置分配的蜂窝链路业务信道传输资 源中, 并且所述专用资源按照约定的方式确定。
应用高层配置信令配置所述专用资源时, 所述发送模块, 配置为: 按照所述高层信令的配置发送所述第二信道状态信息; 或者, 按照测量导频的传输发送所述第二信道状态信息; 或者,
所述接收模块还配置为接收触发信令, 所述发送模块配置为根据所述 触发信令发送所述第二信道状态信息。
所述专用资源位于为所述装置分配的业务信道传输资源中, 并且按照 约定的方式确定具体的专用资源时, 包括: 在所述业务信道传输资源的固 定位置传输所述第二信道状态信息;
以及, 所述装置还包括业务信道处理模块, 配置为对所述业务信道的 数据按照所述第二信道状态信息的资源占用情况进行速率匹配, 或者, 对 所述业务信道的数据按照所述第二信道状态信息的资源占用情况进行打 孔。
所述第二信道状态信息的传输由测量导频的传输触发时, 所述装置配 置为按照测量导频的传输发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输由触发信令触发时, 所述装置配置为根 据所述触发信令发送所述第二信道状态信息。
所述装置是能够与所述第二设备通信的第一设备: 用户设备 UE。
本发明实施例的信道状态信息的处理装置还可以包括:
接收模块, 配置为通过第一链路接收第一设备发送的第二链路的第二
信道状态信息;
所述第一链路是第一设备到所述装置的通信链路, 所述第二链路是能 够与所述第一设备通信的第二设备与所述第一设备间的设备到设备通信链 路。
用于接收所述第二信道状态信息的资源是为所述第一设备分配的第一 信道状态信息的传输资源;
所述第一信道状态信息是所述装置到所述第一设备的通信链路的信道 状态信息。
用于接收所述第二信道状态信息的资源是为传输所述第一信道状态信 息所配置的 PUCCH资源或 PUSCH资源; 和 /或,
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则所述第一设备依据优先级原则传输所述第一信道状态信息和 /或第 二信道状态信息, 或者将所述第一信道状态信息和所述第二信道状态信息 复用后传输; 所述装置根据所述优先级原则或所述复用方式解析所述第一 信道状态信息和 /或所述第二信道状态信息;
所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
所述第二信道状态信息是周期性传输的信道状态信息;
所述装置包括: 发送模块, 配置为发送配置信令; 所述配置信令是高 层信令, 用于配置所述第二信道状态信息的传输周期, 所述第二信道状态 信息按照所述传输周期传输; 或者,
发送模块, 配置为发送配置信令, 所述配置信令用于配置所述第一设 备在所述第二链路的测量导频的传输, 所述第二信道状态信息按照所述测 量导频的传输进行传输。
所述装置包括配置模块, 配置为配置所述第二链路的测量导频传输, 所述第二信道状态信息的传输由所述测量导频的传输触发; 或者,
所述装置包括发送模块, 配置为发送触发信令, 所述触发信令用于触 发所述第二信道状态信息的传输。
接收所述第二信道状态信息的资源是专用资源;
所述装置包括: 专用资源配置模块, 配置为配置专用资源以用于所述 第二信道状态信息的传输; 发送模块, 配置为根据所述专用资源配置模块 的配置发送资源配置信令; 所述资源配置信令是高层信令; 或者, 所述资 源配置信令是动态授权信令;
或者, 所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且所述专用资源按照约定的方式确定。
所述资源配置信令是高层信令时,
所述接收模块配置为按照所述高层信令的配置接收所述第二信道状态 信息; 或者,
所述装置包括配置模块, 配置为配置测量导频的传输, 所述第二信道 状态信息的传输由所述测量导频的传输触发, 所述接收模块配置为根据所 述测量导频的配置接收所述第二信道状态信息; 或者,
所述装置包括发送模块, 配置为发送触发信令, 所述触发信令用于触 发所述第二信道状态信息的传输, 所述接收模块配置为根据所述触发信令 接收所述第二信道状态信息。
所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且 按照约定的方式确定具体的专用资源时, 包括: 约定所述第一设备在所述 业务信道传输资源的固定位置传输所述第二信道状态信息; 以及, 对所述 业务信道的数据按照所述第二信道状态信息的资源占用情况进行速率匹 配, 或者, 对所述业务信道的数据按照所述第二信道状态信息的资源占用
情况进行打孔;
所述装置包括: 业务信道处理模块, 配置为对接收到的业务信道, 按 照所述约定的方式确定所述专用资源, 并在所述专用资源中解析所述第二 信道状态信息。
所述装置包括:
配置模块, 配置为配置测量导频的传输, 所述第二信道状态信息的传 输由所述测量导频的传输触发, 所述接收模块根据所述测量导频的配置接 收所述第二信道状态信息;
或者, 发送模块, 配置为发送触发信令, 所述触发信令用于触发所述 第一设备进行所述第二信道状态信息的传输, 所述接收模块根据所述触发 信令接收所述第二信道状态信息。
所述装置还包括:
调度模块, 配置为根据所述第二信道状态信息调度所述第二链路的数 据传输。
所述装置是网络节点。
本发明实施例的信道状态信息的处理系统包括网络节点、 第一设备; 其中, 所述网络节点配置为控制所述第一设备通过第一链路向所述网络节 点发送第二链路的第二信道状态信息;
所述第一链路是第一设备到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述第一设备通信的第二设备与所述第一设备间的设备到设 备通信链路。
显然, 本领域的技术人员应该明白, 上述的本发明实施例的各模块或 各步骤可以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置 可执行的程序代码来实现, 从而, 可以将它们存储在存储装置中由计算装
置来执行, 或者将它们分别制作成各个集成电路模块, 或者将它们中的多 个模块或步骤制作成单个集成电路模块来实现。 这样, 本发明实施例不限 制于任何特定的硬件和软件结合。
需要说明的是, 上述的发送模块可以是发射机等; 复用模块可以是复 用器等; 接收模块可以是接收机等; 优先级确定模块、 业务信道处理模块、 配置模块、 专用资源配置模块、 调度模块可以是能够进行相应操作的单片 机、 芯片等。
综上所述可见, 无论是方法, 还是能够实现该方法的装置、 系统, 本 发明实施例处理信道状态信息的技术解决了蜂窝通信系统中的 D2D通信时 信道状态信息传输的问题, 进而为 D2D 通信时的调度提供了依据, 保证 D2D通信的资源利用率; 并且, 在没有显著增加用户设备的设计和实现的 复杂度的情况下, 本发明实施例还实现了 D2D通信与蜂窝通信的兼容。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围。
Claims
1、 一种信道状态信息的处理方法, 包括:
通过第一链路向网络节点发送第二链路的第二信道状态信息; 所述第一链路是第一设备到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述第一设备通信的第二设备与所述第一设备间的设备到设 备 D2D通信链路。
2、 根据权利要求 1所述的方法, 其中, 通过第一链路中第一信道状态 信息的传输资源传输所述第二信道状态信息;
所述第一信道状态信息是所述网络节点到所述第一设备的通信链路的 信道状态信息。
3、 根据权利要求 2所述的方法, 其中,
通过第一链路中第一信道状态信息的传输资源传输所述第二信道状态 信息的方法为: 通过为传输所述第一信道状态信息所配置的物理上行控制 信道 PUCCH资源或物理上行共享信道 PUSCH资源传输所述第二信道状态 信息; 和 /或,
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则依据优先级原则传输所述第一信道状态信息和 /或第二信道状态信 息; 或者将所述第一信道状态信息和所述第二信道状态信息复用后传输; 所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
4、 根据权利要求 1至 3任一项所述的方法, 其中,
所述第二信道状态信息是周期性反馈的信道状态信息;
所述第二信道状态信息按照高层信令配置的反馈周期进行传输; 或者, 所述第二信道状态信息按照配置的测量导频的发送周期进行传输。
5、 根据权利要求 1至 3任一项所述的方法, 其中,
所述第二信道状态信息的传输由测量导频的传输触发; 或者, 所述第二信道状态信息的传输由触发信令触发, 所述触发信令由所述 网络节点发送。
6、 根据权利要求 1所述的方法, 其中,
在专用资源中传输所述第二信道状态信息, 所述专用资源是指专用于 传输所述第二信道状态信息的资源;
所述专用资源由所述网络节点通过高层信令配置; 或者, 所述专用资 源由所述网络节点通过授权信令动态授权; 或者, 所述专用资源位于为所 述第一设备分配的蜂窝链路业务信道传输资源中, 并且所述专用资源按照 约定的方式确定。
7、 根据权利要求 6所述的方法, 其中, 所述专用资源由所述网络节点 通过高层信令配置时,
所述第一设备按照所述高层信令的配置发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输由测量导频的传输触发, 所述第一设备 按照测量导频的传输发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输由触发信令触发, 所述第一设备根据所 述触发信令发送所述第二信道状态信息。
8、 根据权利要求 6所述的方法, 其中, 所述专用资源由所述网络节点 通过授权信令动态授权时,
所述第一设备接收所述网络节点发送的用于指示传输所述第二信道状 态信息的授权信令, 基于所述授权信令确定传输所述第二信道状态信息的 资源, 并在所述资源中发送所述第二信道状态信息。
9、 根据权利要求 6所述的方法, 其中,
所述专用资源位于为所述第一设备分配的业务信道传输资源中, 按照 约定的方式确定所述专用资源时, 在所述业务信道传输资源的固定位置传 输所述第二信道状态信息;
以及, 对所述业务信道的数据按照所述第二信道状态信息的资源占用 情况进行速率匹配, 或者, 对所述业务信道的数据按照所述第二信道状态 信息的资源占用情况进行打孔。
10、 根据权利要求 9所述的方法, 其中,
所述第二信道状态信息的传输由测量导频的传输触发, 所述第一设备 按照测量导频的传输发送所述第二信道状态信息; 或者, 所述第二信道状 态信息的传输由触发信令触发, 所述第一设备根据所述触发信令发送所述 第二信道状态信息。
11、 根据权利要求 1所述的方法, 其中, 该方法还包括:
所述网络节点根据所述第二信道状态信息调度所述第二链路的数据传 输。
12、 一种信道状态信息的处理方法, 包括:
通过第一链路接收第一设备发送的第二链路的第二信道状态信息; 所述第一链路是第一设备到网络节点的蜂窝通信链路, 所述第二链路 是能够与所述第一设备通信的第二设备与所述第一设备间的设备到设备通 信链路。
13、 根据权利要求 12所述的方法, 其中, 接收所述第二信道状态信息 的资源是为所述第一设备分配的第一信道状态信息的传输资源;
所述第一信道状态信息是网络节点到所述第一设备的通信链路的信道 状态信息。
14、 根据权利要求 13所述的方法, 其中,
所述资源是为传输所述第一信道状态信息所配置的 PUCCH 资源或
PUSCH资源; 和 /或,
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则所述第一设备依据优先级原则传输所述第一信道状态信息和 /或第 二信道状态信息; 或者将所述第一信道状态信息和所述第二信道状态信息 复用后传输; 所述网络节点根据所述优先级原则或者所述复用方式解析所 述第一信道状态信息和 /或第二信道状态信息;
所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
15、 根据权利要求 12至 14任一项所述的方法, 其中,
所述第二信道状态信息是周期性传输的信道状态信息;
所述网络节点通过高层信令配置所述第二信道状态信息的传输周期; 或者,
所述网络节点配置所述第二链路的测量导频传输, 所述第二信道状态 信 , ¾按照配置的测量导频的周期进行传输。
16、 根据权利要求 12至 14任一项所述的方法, 其中,
所述网络节点配置测量导频的传输, 所述测量导频的传输触发所述第 二信道状态信息的传输; 或者,
所述网络节点发送用于触发所述第二信道状态信息传输的触发信令。
17、 根据权利要求 12所述的方法, 其中,
网络节点配置专用资源用于所述第二信道状态信息的传输;
所述专用资源由网络节点通过高层信令配置; 或者, 所述专用资源由 网络节点通过授权信令动态授权; 或者, 所述专用资源位于为所述第一设 备分配的蜂窝链路业务信道传输资源中, 并且所述专用资源按照约定的方 式确定。
18、 根据权利要求 17所述的方法, 其中, 所述网络节点配置专用资源 用于所述第二信道状态信息的传输时,
网络节点通过高层信令配置所述第二信道状态信息的传输, 所述网络 节点根据所述配置在所述专用资源中接收所述第二信道状态信息; 或者, 网络节点配置所述第二链路的测量导频的传输, 所述测量导频的传输 触发所述第二信道状态信息的传输, 所述网络节点根据所述测量导频的配 置在所述专用资源中接收所述第二信道状态信息; 或者,
网络节点发送用于触发所述第二信道状态信息传输的触发信令, 并在 所述专用资源中接收所述第二信道状态信息。
19、 根据权利要求 17所述的方法, 其中, 所述专用资源由网络节点通 过授权信令动态授权时,
网络节点发送指示传输所述第二信道状态信息的授权信令, 并按照所 述授权信令接收所述第二信道状态信息。
20、 根据权利要求 17所述的方法, 其中,
所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且 按照约定的方式确定具体的专用资源时, 约定所述第一设备在所述业务信 道传输资源的固定位置传输所述第二信道状态信息; 以及, 约定对所述业 务信道的数据按照所述第二信道状态信息的资源占用情况进行速率匹配, 或者, 约定对所述业务信道的数据按照所述第二信道状态信息的资源占用 情况进行打孔; 资源中接收所述第二信道状态信息。
21、 根据权利要求 20所述的方法, 其中, 该方法还包括:
网络节点配置测量导频的传输, 所述第二信道状态信息的传输由所述 测量导频的传输触发;
或者, 网络节点发送触发信令, 所述触发信令用于触发所述第一设备 进行所述第二信道状态信息的传输。
22、 根据权利要求 12所述的方法, 其中, 网络节点还根据所述第二信 道状态信息调度所述第二链路的数据传输。
23、 一种信道状态信息的处理装置, 包括:
发送模块, 配置为通过第一链路向网络节点发送第二链路的第二信道 状态信息;
所述第一链路是所述装置到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述装置通信的第二设备与所述装置间的设备到设备通信链 路。
24、 根据权利要求 23所述的装置, 其中, 所述第二信道状态信息通过 第一链路中第一信道状态信息的传输资源进行传输;
所述第一信道状态信息是所述网络节点到所述第一设备的通信链路的 信道状态信息。
25、 根据权利要求 24所述的装置, 其中, 所述装置还包括: 优先级确定模块, 配置为当传输所述第二信道状态信息的同时有所述 第一信道状态信息需要传输时, 依据优先级原则确定所述第一信道状态信 息和 /或第二信道状态信息传输的优先级; 所述优先级原则为: 放弃所述第 一信道状态信息的部分或者全部; 或者放弃所述第二信道状态信息的部分 或者全部; 或者同时放弃所述第一信道状态信息的部分以及所述第二信道 状态信息的部分;
和 /或, 复用模块, 配置为当传输所述第二信道状态信息的同时有所述 第一信道状态信息需要传输时, 将所述第一信道状态信息和所述第二信道 状态信息进行复用;
所述发送模块根据所述优先级确定模块和 /或所述复用模块的处理, 通
过为传输所述第一信道状态信息所配置的 PUCCH资源或 PUSCH资源传输 所述第一信道状态信息和 /或所述第二信道状态信息。
26、 根据权利要求 23至 25任一项所述的装置, 其中:
所述第二信道状态信息是周期性反馈的信道状态信息; 所述装置包括: 接收模块;
所述接收模块配置为接收高层信令, 所述高层信令用于配置所述第二 信道状态信息的传输周期, 所述第二信道状态信息按照所述周期进行传输; 或者,
所述接收模块配置为接收所述第二链路的测量导频配置信令, 所述第 二信道状态信息按照所述配置的测量导频的周期进行传输。
27、 根据权利要求 23至 25任一项所述的装置, 其中,
所述装置包括: 接收模块;
所述接收模块配置为接收所述第二链路的测量导频配置信令, 所述第 二信道状态信息的传输由所述测量导频的传输触发; 或者,
所述接收模块配置为接收网络节点发送的触发信令, 所述第二信道状 态信息的传输由所述触发信令触发。
28、 根据权利要求 23所述的装置, 其中,
所述第二信道状态信息通过专用资源进行传输;
所述装置包括: 接收模块, 配置为接收来自网络节点的高层配置信令, 所述高层配置信令用于配置所述专用资源; 或者, 所述接收模块配置为接 收来自网络节点的授权信息, 所述授权信息用于动态授权所述专用资源; 或者, 所述专用资源位于为所述装置分配的蜂窝链路业务信道传输资 源中, 并且所述专用资源按照约定的方式确定。
29、 根据权利要求 28所述的装置, 其中, 应用高层配置信令配置所述 专用资源时, 所述发送模块, 配置为:
按照所述高层信令的配置发送所述第二信道状态信息; 或者, 按照测量导频的传输发送所述第二信道状态信息; 或者,
所述接收模块还配置为接收触发信令, 所述发送模块配置为根据所述 触发信令发送所述第二信道状态信息。
30、 根据权利要求 28所述的装置, 其中,
所述专用资源位于为所述装置分配的业务信道传输资源中, 并且按照 约定的方式确定具体的专用资源时, 包括: 在所述业务信道传输资源的固 定位置传输所述第二信道状态信息;
以及, 所述装置还包括业务信道处理模块, 配置为对所述业务信道的 数据按照所述第二信道状态信息的资源占用情况进行速率匹配, 或者, 对 所述业务信道的数据按照所述第二信道状态信息的资源占用情况进行打 孔。
31、 根据权利要求 30所述的装置, 其中,
所述第二信道状态信息的传输由测量导频的传输触发时, 所述装置配 置为按照测量导频的传输发送所述第二信道状态信息; 或者,
所述第二信道状态信息的传输由触发信令触发时, 所述装置配置为根 据所述触发信令发送所述第二信道状态信息。
32、 根据权利要求 23所述的装置, 其中, 所述装置是能够与所述第二 设备通信的第一设备: 用户设备 UE。
33、 一种信道状态信息的处理装置, 包括:
接收模块, 配置为通过第一链路接收第一设备发送的第二链路的第二 信道状态信息;
所述第一链路是第一设备到所述装置的通信链路, 所述第二链路是能 够与所述第一设备通信的第二设备与所述第一设备间的设备到设备通信链 路。
34、 根据权利要求 33所述的装置, 其中: 用于接收所述第二信道状态 信息的资源是为所述第一设备分配的第一信道状态信息的传输资源;
所述第一信道状态信息是所述装置到所述第一设备的通信链路的信道 状态信息。
35、 根据权利要求 34所述的装置, 其中,
用于接收所述第二信道状态信息的资源是为传输所述第一信道状态信 息所配置的 PUCCH资源或 PUSCH资源; 和 /或,
如果传输所述第二信道状态信息的同时有所述第一信道状态信息需要 传输, 则所述第一设备依据优先级原则传输所述第一信道状态信息和 /或第 二信道状态信息, 或者将所述第一信道状态信息和所述第二信道状态信息 复用后传输; 所述装置根据所述优先级原则或所述复用方式解析所述第一 信道状态信息和 /或所述第二信道状态信息;
所述优先级原则为: 放弃所述第一信道状态信息的部分或者全部; 或 者放弃所述第二信道状态信息的部分或者全部; 或者同时放弃所述第一信 道状态信息的部分以及所述第二信道状态信息的部分。
36、 根据权利要求 33至 35任一项所述的装置, 其中:
所述第二信道状态信息是周期性传输的信道状态信息;
所述装置包括: 发送模块, 配置为发送配置信令; 所述配置信令是高 层信令, 用于配置所述第二信道状态信息的传输周期, 所述第二信道状态 信息按照所述传输周期传输; 或者,
发送模块, 配置为发送配置信令, 所述配置信令用于配置所述第一设 备在所述第二链路的测量导频的传输, 所述第二信道状态信息按照所述测 量导频的传输进行传输。
37、 根据权利要求 33至 35任一项所述的装置, 其中:
所述装置包括配置模块, 配置为配置所述第二链路的测量导频传输,
所述第二信道状态信息的传输由所述测量导频的传输触发; 或者, 所述装置包括发送模块, 配置为发送触发信令, 所述触发信令用于触 发所述第二信道状态信息的传输。
38、 根据权利要求 33所述的装置, 其中:
接收所述第二信道状态信息的资源是专用资源;
所述装置包括: 专用资源配置模块, 配置为配置专用资源以用于所述 第二信道状态信息的传输; 发送模块, 配置为根据所述专用资源配置模块 的配置发送资源配置信令; 所述资源配置信令是高层信令; 或者, 所述资 源配置信令是动态授权信令;
或者, 所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且所述专用资源按照约定的方式确定。
39、 根据权利要求 38所述的装置, 其中, 所述资源配置信令是高层信 令时,
所述接收模块配置为按照所述高层信令的配置接收所述第二信道状态 信息; 或者,
所述装置包括配置模块, 配置为配置测量导频的传输, 所述第二信道 状态信息的传输由所述测量导频的传输触发, 所述接收模块配置为根据所 述测量导频的配置接收所述第二信道状态信息; 或者,
所述装置包括发送模块, 配置为发送触发信令, 所述触发信令用于触 发所述第二信道状态信息的传输, 所述接收模块配置为根据所述触发信令 接收所述第二信道状态信息。
40、 根据权利要求 38所述的装置, 其中,
所述专用资源位于为所述第一设备分配的业务信道传输资源中, 并且 按照约定的方式确定具体的专用资源时, 包括: 约定所述第一设备在所述 业务信道传输资源的固定位置传输所述第二信道状态信息; 以及, 对所述
业务信道的数据按照所述第二信道状态信息的资源占用情况进行速率匹 配, 或者, 对所述业务信道的数据按照所述第二信道状态信息的资源占用 情况进行打孔;
所述装置包括: 业务信道处理模块, 配置为对接收到的业务信道, 按 照所述约定的方式确定所述专用资源, 并在所述专用资源中解析所述第二 信道状态信息。
41、 根据权利要求 40所述的装置, 其中, 所述装置包括:
配置模块, 配置为配置测量导频的传输, 所述第二信道状态信息的传 输由所述测量导频的传输触发, 所述接收模块根据所述测量导频的配置接 收所述第二信道状态信息;
或者, 发送模块, 配置为发送触发信令, 所述触发信令用于触发所述 第一设备进行所述第二信道状态信息的传输, 所述接收模块根据所述触发 信令接收所述第二信道状态信息。
42、 根据权利要求 33所述的装置, 其中, 所述装置还包括:
调度模块, 配置为根据所述第二信道状态信息调度所述第二链路的数 据传输。
43、 根据权利要求 33所述的装置, 其中, 所述装置是网络节点。
44、 一种信道状态信息的处理系统, 包括网络节点、 第一设备; 其中, 所述网络节点配置为控制所述第一设备通过第一链路向所述网络节点发送 第二链路的第二信道状态信息;
所述第一链路是第一设备到所述网络节点的蜂窝通信链路, 所述第二 链路是能够与所述第一设备通信的第二设备与所述第一设备间的设备到设 备通信链路。
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2013
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- 2013-09-22 WO PCT/CN2013/083951 patent/WO2014048282A1/zh active Application Filing
- 2013-09-22 EP EP13840881.0A patent/EP2903193A4/en not_active Withdrawn
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CN110381475A (zh) * | 2014-05-09 | 2019-10-25 | 创新技术实验室株式会社 | 关于支持UE之间的D2D通信的方法、eNB及Tx UE |
CN110381475B (zh) * | 2014-05-09 | 2022-10-14 | 思科系统公司 | 关于支持UE之间的D2D通信的方法、eNB及Tx UE |
US11736233B2 (en) | 2014-05-09 | 2023-08-22 | Cisco Technology, Inc. | Method and apparatus of scheduling for device to device (D2D) communication |
Also Published As
Publication number | Publication date |
---|---|
EP2903193A4 (en) | 2015-10-07 |
US20150249981A1 (en) | 2015-09-03 |
EP2903193A1 (en) | 2015-08-05 |
CN103716117A (zh) | 2014-04-09 |
CN103716117B (zh) | 2018-08-24 |
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