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CN110417528B - D2D communication method and device - Google Patents

D2D communication method and device Download PDF

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Publication number
CN110417528B
CN110417528B CN201910690286.3A CN201910690286A CN110417528B CN 110417528 B CN110417528 B CN 110417528B CN 201910690286 A CN201910690286 A CN 201910690286A CN 110417528 B CN110417528 B CN 110417528B
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China
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information
wireless signal
node
sender
time
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CN110417528A (en
Inventor
张晓博
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Shanghai Langbo Communication Technology Co Ltd
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Shanghai Langbo Communication Technology Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • 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
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/14—Direct-mode setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices
    • H04W88/04—Terminal devices adapted for relaying to or from another terminal or user

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a method and a device for D2D communication. The UE first receives the first wireless signal and then transmits the second wireless signal and the third wireless signal. Wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }. The sender of the first wireless signal is a first node and the receiver of the second wireless signal comprises a second node. The first information is generated at a physical layer and the first data is generated at a higher layer. The invention allows the UE to decide the transmitted content by self, can more efficiently utilize uplink air interface resources and improve the transmission efficiency. In addition, the relay UE measures and reports the related information of the channel quality of the side link, and the frequency spectrum efficiency is improved so as to improve the overall performance of the system.

Description

D2D communication method and device
The present application is a divisional application of the following original applications:
application date of the original application: 2016, 04 and 14 months
- -application number of the original application: 201610231157.4
The invention of the original application is named: method and device for narrow-band cellular communication
Technical Field
The present application relates to a Transmission scheme in a wireless communication system, and more particularly, to a method and apparatus for supporting wireless relay Transmission (Transmission).
Background
A scheme of a Relay (Relay) base station of Layer 3(Layer-3) is proposed in the third generation partnership Project (3GPP-3rd generation partner Project) R (Release) 9. The relay base station has a function of a common base station for a UE (User Equipment), and can independently schedule data and transmit a downlink HARQ-ACK (Hybrid Automatic Repeat reQuest).
In conventional 3GPP systems, data transmission occurs between a base station and a UE. In 3GPP R12, D2D (Device to Device) communication is well established and discussed, and an essential feature of D2D is to allow data transmission between UEs. In 3GPP R13, eD2D (Enhancements to LTE Device to Device) was established, and its main feature is to introduce UE Relay (Relay) function. In eD2D, a Relay user equipment (Relay UE) relays data exchange between a Remote user equipment (Remote UE) and a base station.
In 3GPP RAN (Radio Access Network ) #69 times congress, NB-IOT (narrow band Internet of Things) was established. Further, at 3GPP RAN #71 congress (RP-160655), FeD2D (Further Enhancements of LTE D2D) for IoT and wearable devices is established. In FeD2D, D2D communication may be achieved over an NB-IoT like air interface.
A typical application scenario of the FeD2D is that there are multiple wearable devices around a smart terminal. The intelligent terminal relays data exchange from the wearable device to the base station, namely the intelligent terminal and the wearable device are Relay UE and Remote UE respectively.
Disclosure of Invention
The Release 12D2D transmission mainly aims at Public Safety (Public Safety) scenes, so when designing data transmission, a repeated transmission mode is adopted. There is no Link Adaptation (Link Adaptation) and no CSI (Channel State Information) feedback between the terminal device and the terminal device. For the FeD2D, considering the consideration of spectrum efficiency and transmission reliability, CSI between the terminal device and the terminal device, that is, CSI of Relay UE and Remote UE, needs to be obtained by the base station to perform link adaptation and adaptation of modulation and coding scheme.
An intuitive solution is to reuse the Relay base station in 3GPP R9, i.e. the Relay UE has the function of a Relay base station, and the scheduling of all Remote UEs is implemented by the Relay UE. The inventor finds that the intuitive method puts high requirements on the power consumption and the complexity of the intelligent terminal through research, and therefore the intuitive method is difficult to implement.
The present application provides a solution to the above problems. It should be noted that the embodiments and features of the embodiments of the present application may be arbitrarily combined with each other without conflict. For example, embodiments and features in embodiments in the UE of the present application may be applied in a base station and vice versa. Also for example, the embodiments and features in embodiments where D2D transmits UEs (i.e., transmits wireless signals over D2D link) of the present application may be applied to D2D receives UEs (i.e., receives the wireless signals over D2D link) and vice versa. Further, while the original intention of the present application was for FeD2D (i.e., D2D transmissions are narrowband based), the solution of the present application is also applicable to wideband D2D relaying (i.e., D2D transmissions are wideband based).
The application discloses a method used in UE of relay communication, wherein, the method comprises the following steps:
-step a. receiving a first wireless signal
-step b. transmitting the second wireless signal and the third wireless signal.
Wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }. The sender of the first wireless signal is a first node and the receiver of the second wireless signal comprises a second node. The third wireless signal is used to determine at least one of:
whether the second radio signal comprises first information or first data
-whether the first node is the serving cell of the UE
-an identity of the first node.
The first information is generated at a physical layer and the first data is generated at a higher layer.
In D2D-based relay transmission, the relay UE, not the base station, knows the link quality and transmission status of the Sidelink (Sidelink). Therefore, with the third radio signal, the UE can determine the content included in the second radio signal by itself.
In conventional D2D and eD2D, the UE cannot determine the content included in the uplink signal by itself. Therefore, the method can more efficiently utilize the uplink air interface resources and improve the transmission efficiency.
As an embodiment, the first node and the second node are a Remote UE and a base station, respectively. In the above embodiment, the Relay UE acquires the channel quality of a Sidelink (Sidelink) through the first signal, and sends the channel quality to the base station through the second wireless signal, so as to help the base station perform link adaptation and adaptation of a modulation and coding scheme for transmission from the Relay UE to the Relay UE.
As an embodiment, the bandwidth occupied by the first wireless signal does not exceed 180 kHz.
As a sub-embodiment of this embodiment, the bandwidth occupied by the first wireless signal is one of {3.75KHz, 15KHz,45KHz, 90KHz,180KHz }.
As an embodiment, the bandwidth occupied by the second wireless signal is not less than 180 kHz.
As an embodiment, the second wireless signal and the third wireless signal jointly occupy a positive integer number of PRB (physical Resource Block) pairs.
As an embodiment, the second wireless signal is transmitted in a PUSCH (Physical Uplink Shared Channel).
As an embodiment, the transmission Channel of the second wireless signal is UL-SCH (Uplink Shared Channel).
As one embodiment, the third wireless signal is transmitted in PUSCH.
As an embodiment, the transmission channel of the third radio signal is UL-SCH.
As an embodiment, the second wireless signal and the third wireless signal share a positive integer number of PRB pairs.
As an embodiment, the first information relates to a channel quality between the first node and the UE.
As a sub-embodiment of this embodiment, the first information comprises CSI.
As a sub-embodiment of this embodiment, the first Information includes CQI (Channel quality Information).
As a sub-embodiment of this embodiment, the first information includes MCS (Modulation and Coding Status).
As a sub-embodiment of this embodiment, the first information includes RSRP (Reference Signal Received Power) of Layer 1(Layer 1).
In one embodiment, the first information includes a first HARQ-ACK. Wherein the first HARQ-ACK indicates whether the data transmission between the first node and the UE was decoded correctly.
As an embodiment, the first information includes a Scheduling Request (SR).
In one embodiment, the higher layer is a layer above the physical layer.
As an embodiment, the generating of the first information at the physical layer refers to: and a transmission channel corresponding to the first information does not exist.
As an embodiment, the generating of the first information at the physical layer refers to: the higher layer cannot identify the first information.
As an embodiment, the generating of the first data at a high layer means: there is a transmission channel to which the first data corresponds.
As an embodiment, the generating of the first data at a high layer means: a higher layer can identify the first data.
As an embodiment, the second wireless signal includes first information in { first information, first data }, and the first wireless signal includes at least one of { synchronization sequence, discovery channel, reference signal }.
As an embodiment, the second wireless signal includes first information and first data, and the first wireless signal includes first data and at least one of { synchronization sequence, discovery channel, reference signal }.
As an embodiment, the first wireless signal being used to determine the second wireless signal refers to: the second wireless signal includes information obtained by the UE from the first wireless signal.
As an embodiment, the first wireless signal being used to determine the second wireless signal refers to: the second wireless signal is related to a channel quality between the first node and the UE, and the first wireless signal is used for the UE to acquire the channel quality.
As an embodiment, the first wireless signal being used to determine the second wireless signal refers to: the second wireless signal includes a second HARQ-ACK indicating whether the first wireless signal is decoded correctly.
As an embodiment, the first wireless signal being used to determine the second wireless signal refers to: the second wireless signal includes a signal obtained after the first wireless signal is channel equalized.
As an embodiment, the first wireless signal being used to determine the second wireless signal refers to: the second wireless signal comprises a signal obtained after the first wireless signal is subjected to channel equalization, hard decision and remodulation coding.
As an embodiment, the first wireless signal being used to determine the second wireless signal refers to: and performing channel decoding on the first wireless signal to obtain the second wireless signal.
As an embodiment, the transmission Channel corresponding to the first data is a SL-SCH (Sidelink Shared Channel).
In one embodiment, the transmission channel corresponding to the first data is an UL-SCH.
As an embodiment, the first node is a terminal device.
As an embodiment, the second node is a network side device.
As an embodiment, the first node and the second node are non-co-located;
as a sub-embodiment of this embodiment, the first node and the second node are non-co-located, meaning that: the first node and the second node are two different communication devices.
As a sub-embodiment of this embodiment, the first node and the second node are non-co-located, meaning that: there is no wired connection between the first node and the second node.
As a sub-embodiment of this embodiment, the first node and the second node are non-co-located, meaning that: the first node and the second node are located at different locations.
The design feature of "whether the third wireless signal is used to determine that the second wireless signal includes the first information or the first data" is that, after the base station allocates the uplink resource for the channel quality related information of the wireless link from the Remote UE to the Relay UE, because the wireless link from the Remote UE to the Relay UE is static relative to the Relay UE, the channel quality related information changes rapidly, and it does not make sense to update the channel quality related information frequently. The Relay UE may transmit its uplink data on the resource allocated by the base station through the indication of the third radio signal, so as to improve the utilization rate of the frequency band.
The design feature of the above "the third wireless signal is used to determine whether the first node is the serving cell of the UE" is that, if there is no Remote UE under the Relay UE, the base station allocates uplink resources for channel quality related information of a wireless link between the Remote UE and the Relay UE, and the uplink resources can still be used for transmission of uplink data of the Relay UE, so as to improve the frequency band utilization rate.
The design peculiarity of the above-mentioned "the third wireless signal is used for determining the identity of the first node" is that. The base station does not know how many Remote UEs exist under the Relay UE and which Remote UE corresponds to which channel quality related information needs to be sent. When sending the channel quality related information of the Remote UE, the Relay UE sends the identifier of the Remote UE to the base station, so that the channel quality related information of all the Remote UEs does not need to be sent each time, and only the channel quality related information of the Remote UE with part of channels changing needs to be sent to the base station. Therefore, the feedback efficiency can be better improved, and the frequency band utilization rate is improved.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
-a step a1. determining the first information from the first wireless signal.
The first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals. The K is a positive integer.
As an embodiment, the determining the first information according to the first wireless signal refers to: the first information shows information relating to channel quality for a given radio link. The given wireless link is a link between the UE and the first node. The channel quality related information is at least one of { MCS, CQI }.
As an embodiment, the first radio signal is transmitted on a psch (Physical downlink Shared Channel).
As an embodiment, the first wireless signal is transmitted on a PSBCH (Physical Sidelink Broadcast Channel).
As an embodiment, the first wireless signal is transmitted on a PSDCH (Physical downlink Discovery Channel).
As one example, the first wireless Signal is transmitted over a PSSS (Primary Sidelink synchronization Signal).
As an embodiment, the first radio signal is transmitted on NB-PUSCH (Narrow Band-physical Uplink Shared Channel).
In one embodiment, the transmission channel corresponding to the first wireless signal is a SL-SCH.
In one embodiment, the transmission channel corresponding to the first wireless signal is an UL-SCH.
As one embodiment, the reference signal is a reference signal for data demodulation.
As an embodiment, the reference signal is a reference signal for channel measurement.
As one embodiment, the reference signal is for Cell Specific reference signal.
As one embodiment, the reference signal is for a UE-Specific (UE Specific) reference signal.
As an embodiment, the Reference channel is a DMRS (Demodulation Reference Signal).
As an example, the Reference channel is SRS (Sounding Reference Signal)
As one embodiment, the first wireless signal is used for UE-specific information transmission between the first node and the UE.
As one embodiment, the first wireless signal is used for cell-specific information transmission between the first node and the UE.
As one embodiment, the first wireless signal is used for data transmission between the first node and the UE.
As one embodiment, the first wireless signal is used for discovery by the UE of the first node.
As one embodiment, the first wireless signal is used for the first node to establish synchronization with the UE.
Specifically, according to an aspect of the present application, the method is characterized in that the step B further includes the steps of:
-step b1. receiving second information. The second information is used to determine the first time-frequency resource.
Wherein the second wireless signal is transmitted in the first time-frequency resource.
As an embodiment, the third wireless signal is also transmitted in the first time-frequency resource.
As an embodiment, the third wireless signal is transmitted on a PUCCH (Physical Uplink Control Channel).
As an embodiment, the sender of the second information is the second node.
As an embodiment, the sender of the second information is a network side device.
As an embodiment, the sender of the second information is a serving cell of the UE.
As an embodiment, the second information is transmitted on a PDSCH (Physical Downlink Shared Channel).
As an embodiment, the second information is RRC (Radio Resource Control) Common (Common) information.
As one embodiment, the second information is RRC Specific information.
In one embodiment, the second information is used to indicate a first time-frequency resource pool. Wherein the first pool of time-frequency resources contains 1 of the first time-frequency resources in a given time window, and the first information is transmitted on the first time-frequency resources.
As a sub-embodiment of this embodiment, the given time window occupies a positive integer number of subframes in the time domain.
As a sub-embodiment of this embodiment, the first time-frequency resource contains a positive integer number of PRB pairs in a given time window.
The two embodiments have the advantages that the base station sends the time-frequency resource of the channel quality related information of the link from the Remote UE to the Relay UE through the configuration of the RRC signaling period, and the Relay UE selectively sends the channel quality related information according to the change degree of the channel quality related information of the link. The method saves downlink control signaling.
As an embodiment, the transmission Channel corresponding to the second information is a DL-SCH (downlink Shared Channel).
As an embodiment, the second information is physical layer signaling.
As a sub-embodiment, the second information is used to indicate the first time-frequency resource from a first time-frequency resource pool. Wherein, the time frequency resource occupied by the first time frequency resource pool is fixed or determined by the first high layer signaling.
The sub-embodiment is characterized in that the resource is configured by using a high layer signaling and a physical layer signaling to send the channel quality related information of the link from the Remote UE to the Relay UE, and the uplink spectrum efficiency can be better improved in a pure RRC configuration mode.
As a sub-embodiment, the second Information is transmitted in one of DCI (Downlink Control Information) Format (Format) {0, 4}, and the physical layer channel corresponding to the first time-frequency resource is a PUSCH.
The special feature of the above sub-embodiment is that the channel quality related information of the Remote UE to Relay UE link is transmitted via a legacy PUSCH, and the occupied PRBs are indicated by information bits in a given DCI Format. The given DCI Format is one of DCI Format {0, 4 }.
Specifically, according to an aspect of the present application, the method is characterized in that the step B further includes the steps of:
-step b2. sending the third information.
Wherein the third information is used for at least one of { request the first time-frequency resource, adjust the size of the first time-frequency resource }.
As an embodiment, the "requesting the first time-frequency resource" means that the UE requests an uplink resource from a receiver of the third information, and the uplink resource is used for transmitting the second wireless signal and the third wireless signal.
The embodiment has the advantage that the Relay UE can request uplink resources to send channel quality related information of a radio link from the Remote UE to the Relay UE, without the need of reserving resources by the system, so as to improve the uplink spectrum utilization rate.
As a sub-embodiment of this embodiment, the third information includes 1-bit information, and when the 1-bit information is "1", it indicates that the first time-frequency resource is requested, and when the 1-bit information is "0", it indicates that the first time-frequency resource is not needed.
As an embodiment, the "adjusting the size of the first time-frequency resource" means that the UE requests the receiver of the third information to adjust the size of the allocated uplink resource, and the allocated uplink resource is used for transmitting the second wireless signal and the third wireless signal.
The embodiment has the advantages that Relay UE requires to increase or decrease the channel quality related information of a wireless link from the Relay UE to the Relay UE sent by uplink resources according to the number of peripheral Relay UEs and the channel change speed, the uplink spectrum utilization rate is ensured, the transmission speed of the channel quality related information is increased, and the overall performance of the system is further improved.
As a sub-embodiment of this embodiment, the third information includes 1-bit information, where the 1-bit information indicates that the size of the currently configured first time-frequency resource is increased when the 1-bit information is "1", and the 1-bit information indicates that the size of the currently configured first time-frequency resource is decreased when the 1-bit information is "0".
As an embodiment, the third information is used for { requesting the first time-frequency resource, adjusting the size of the first time-frequency resource } at least requesting the first time-frequency resource, and the step B2 occurs before the step B1.
As an embodiment, the third information is used for at least one of { requesting the first time/frequency resource, adjusting the size of the first time/frequency resource } adjusting the size of the first time/frequency resource, and the step B2 occurs after the step B1.
As an embodiment, the recipient of the third information is the second node.
As an embodiment, the receiver of the third information is a network side device.
As an embodiment, the receiver of the third information is a serving cell of the UE.
As an embodiment, the third information is transmitted on a PUSCH.
In one embodiment, the transmission channel corresponding to the third information is an UL-SCH.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
-a step a4. receiving a fourth radio signal.
Wherein the information related to the fourth wireless signal and the first information are related. The related information includes at least one of { MCS, RV (Redundancy Version), NDI (New Data Indicator) }. A sender of the fourth wireless signal is the first node.
As an embodiment, the fourth wireless signal is transmitted on a psch.
As one embodiment, the fourth wireless signal is transmitted on NB-PUSCH.
As an embodiment, the transmission channel of the fourth radio signal is a SL-SCH.
As an embodiment, a transmission channel of the fourth wireless signal is UL-SCH.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
-a step a5. receiving fourth information, the fourth information being used for determining information related to the fourth radio signal, the first information being used for determining the fourth information; or receiving fifth information, the fifth information being used to determine information related to the fourth wireless signal, the fifth information being related to the first information.
Wherein the sender of the fourth information is the second node and the sender of the fifth information is the first node.
As an embodiment, the fourth information is transmitted on a PDCCH (Physical downlink Control Channel) or an EPDCCH (Enhanced Physical downlink Control Channel).
As an embodiment, the DCI Format used by the fourth information is DCI Format 5.
As an embodiment, the DCI Format adopted by the fourth information is DCI Format 6-0A.
As an embodiment, the DCI Format adopted by the fourth information is DCI Format 6-0B.
As an embodiment, the fourth information is used to determine the related information of the fourth wireless signal by: the fourth information explicitly includes at least one of { MCS for the fourth wireless signal, RV for the fourth wireless signal, NDI for the fourth wireless signal }.
As an embodiment, the first information is used to determine the fourth information is: the first information is implicitly used to determine the fourth information.
As a sub-embodiment of this embodiment, the first information comprises the first HARQ-ACK, and the first HARQ-ACK indicates that the data transmission between the first node and the UE is correctly decoded. The fourth information includes an NDI of { MCS for the fourth wireless signal, RV for the fourth wireless signal, NDI for the fourth wireless signal } for at least the fourth wireless signal, and the NDI is equal to 1.
As a sub-embodiment of this embodiment, the first information comprises the first HARQ-ACK, and the first HARQ-ACK indicates that the data transmission between the first node and the UE was not decoded correctly. The fourth information includes an NDI of { MCS for the fourth wireless signal, RV for the fourth wireless signal, NDI for the fourth wireless signal } for at least the fourth wireless signal, and the NDI is equal to 0.
As a sub-embodiment of this embodiment, the first information relates to a channel quality between the first node and the UE, the fourth information comprises { MCS for the fourth wireless signal }, and the MCS for the fourth wireless signal relates to the first information.
As a subsidiary embodiment of this sub-embodiment, said first information comprises a CQI and said MCS for said fourth radio signal relates to the CQI comprised by said first information.
As a subsidiary embodiment of this sub-embodiment, said first information comprises an MCS and said MCS for said fourth radio signal relates to the MCS comprised by said first information.
As an embodiment, the first information is used to determine the fourth information is: the first information is explicit to be used for determining the fourth information.
As a sub-embodiment of this embodiment, the first information relates to a channel quality between the first node and the UE, the fourth information comprises { MCS for the fourth wireless signal }, and the MCS for the fourth wireless signal relates to the first information.
As a subsidiary embodiment of the sub-embodiment, the first information includes CQI, and the MCS for the fourth wireless signal is an MCS corresponding to the CQI included in the first information.
As a subsidiary embodiment of this sub-embodiment, said first information comprises an MCS and said MCS for said fourth radio signal is the MCS comprised by said first information.
As an embodiment, the fifth information is transmitted on a PSCCH (Physical downlink Control Channel).
As an embodiment, the fifth Information adopts SCI (Sidelink Control Information) Format (Format) which is SCI Format 0.
As an embodiment, the fifth information is used to determine the related information of the fourth wireless signal by: the fifth information explicitly includes at least one of { MCS for the fourth wireless signal, RV for the fourth wireless signal, NDI for the fourth wireless signal }.
As an embodiment, the fifth information is related to the first information by: the first information is implicitly used to determine the fifth information.
As a sub-embodiment of this embodiment, the first information comprises the first HARQ-ACK, and the first HARQ-ACK indicates that the data transmission between the first node and the UE is correctly decoded. The fifth information includes an NDI of { MCS for the fourth wireless signal, RV for the fourth wireless signal, NDI for the fourth wireless signal } for at least the fourth wireless signal, and the NDI is equal to 1.
As a sub-embodiment of this embodiment, the first information comprises the first HARQ-ACK, and the first HARQ-ACK indicates that the data transmission between the first node and the UE was not decoded correctly. The fifth information includes an NDI of { MCS for the fourth wireless signal, RV for the fourth wireless signal, NDI for the fourth wireless signal } for at least the fourth wireless signal, and the NDI is equal to 0.
As a sub-embodiment of this embodiment, the first information relates to channel quality between the first node and the UE, the fifth information comprises { MCS for the fourth wireless signal }, and the MCS for the fourth wireless signal relates to the first information.
As a subsidiary embodiment of this sub-embodiment, said first information comprises a CQI and said MCS for said fourth radio signal relates to the CQI comprised by said first information.
As a subsidiary embodiment of this sub-embodiment, said first information comprises an MCS and said MCS for said fourth radio signal relates to the MCS comprised by said first information.
As an embodiment, the fifth information is related to the first information by: the first information is explicit to be used for determining the fifth information.
As a sub-embodiment of this embodiment, the first information relates to channel quality between the first node and the UE, the fifth information comprises { MCS for the fourth wireless signal }, and the MCS for the fourth wireless signal relates to the first information.
As a subsidiary embodiment of the sub-embodiment, the first information includes CQI, and the MCS for the fourth wireless signal is an MCS corresponding to the CQI included in the first information.
As a subsidiary embodiment of this sub-embodiment, said first information comprises an MCS and said MCS for said fourth radio signal is the MCS comprised by said first information.
In particular, according to one aspect of the present application, the above method is characterized in that the identifier of the first node comprises N bits. The N is one of {50, 24, 16, M }, and M is a positive integer less than 16.
As an embodiment, the number of terminal devices that the UE can maintain is Q, and Q is 2 raised to the M power.
The special feature of the foregoing embodiment is that the Relay UE orders the registered Remote UEs among all terminal devices that the Relay UE can maintain, and sends the sequence numbers to the base station, so as to determine to which Remote UE the channel quality related information forwarded by the Relay UE belongs.
As a sub-embodiment of this embodiment, Q is equal to 16, and N is equal to M, which is equal to 4.
As a sub-embodiment of this embodiment, Q is equal to 8, and N is equal to M, which is equal to 3.
As a sub-embodiment of this embodiment, Q is equal to 4, and N is equal to M, which is equal to 2.
As an embodiment, the Identity of the first node is an RNTI (Radio Network temporary Identity) of the first node, and N is equal to 16.
The essence of the above embodiment is that the Relay UE sends the RNTI of the registered Relay UE to the base station to determine to which Relay UE the channel quality related information forwarded by the Relay UE belongs.
As an embodiment, the identity of the first node is a subset of RNTI and N is less than 16.
The special feature of the above embodiment is that the base station or system may define a subset of RNTIs, where the RNTIs in the subset of RNTIs are only used for Remote UEs. In this case, the Relay UE only needs to send the sequence number of the RNTI in the RNTI subset of the Remote UE to the base station, so as to determine to which Remote UE the channel quality related information forwarded by the Relay UE belongs. The method has the advantage of saving uplink resources.
As a sub-embodiment of this embodiment, the number of RNTIs contained in the subset is P, and the N is equal to M, which is not greater than (log)2P + 1).
As an embodiment, N is equal to 24, and the identity of the first node is a PLMN-ID (Public Land Mobile Network-identity) of the first node.
For one embodiment, N is equal to 24 and the identity of the first node is the Layer-2ID of the first node.
As an embodiment, N is equal to M, M is equal to 50, and the Identity of the first node is an IMEI (International Mobile Equipment Identity) of the first node.
As an embodiment, N is equal to M, M is not greater than 50, and the Identity of the first node is an IMSI (International Mobile Subscriber Identity) of the first node.
The application discloses a method used in UE of relay communication, wherein, the method comprises the following steps:
-step a. transmitting a first wireless signal.
-step b.
Wherein the first wireless signal is used to determine the second wireless signal. The second wireless signal includes one of { first information, first data }. The receiver of the first wireless signal comprises a sender of the second wireless signal. The first information is used to determine the fourth information. The fourth information relates to the first wireless signal received by the first wireless signal receiver. The sender of the fourth information is non-co-located with the receiver of the first wireless signal.
As an embodiment, the fourth information related to the first wireless signal received by the first wireless signal receiver means: the first wireless signal receiver obtains the first information by receiving the first wireless signal, and the first information is used to determine the fourth information.
As an embodiment, that the sender of the fourth information is non-co-located with the receiver of the first wireless signal means that: the sender of the fourth information and the receiver of the first wireless signal are two different communication devices.
As an embodiment, that the sender of the fourth information is non-co-located with the receiver of the first wireless signal means that: there is no wired connection between the sender of the fourth information and the receiver of the first wireless signal.
As an embodiment, that the sender of the fourth information is non-co-located with the receiver of the first wireless signal means that: the sender of the fourth information is located at a different location than the receiver of the first wireless signal.
As an embodiment, the receiver of the first wireless signal is a terminal device, and the sender of the fourth information is a network side device.
As an embodiment, the sender of the fourth information is a serving cell maintenance device of the recipient of the first wireless signal.
As an embodiment, the sender of the fourth information is the second node.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
-a step a4. transmitting a fourth radio signal.
Wherein information relating to a fourth wireless signal is correlated with the first information, the fourth information being used to determine information relating to the fourth wireless signal, the information comprising at least one of { MCS, RV, NDI }.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
step a5. sending the fifth information.
Wherein the fifth information is used to determine the correlation information of the fourth wireless signal, the fifth information being correlated with the first information.
As an embodiment, the receiver of the fifth information is a receiver of the fourth wireless signal.
The application discloses a method used in a base station for relay communication, which comprises the following steps:
-step a. receiving the second wireless signal and the third wireless signal.
-step b.
Wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }. The sender of the first wireless signal is a first node. The third wireless signal is used to determine at least one of:
whether the second radio signal comprises first information or first data
-whether the first node is a serving cell of a sender of the second wireless signal
-an identity of the first node.
The first information is generated at a physical layer and the first data is generated at a higher layer. The first information is used to determine the fourth information. The fourth information relates to channel quality related information obtained by the first wireless signal receiver from the first wireless signal. The related information includes at least one of { MCS, RV, NDI }.
As an embodiment, the fourth information is used to determine information related to the fourth wireless signal.
As an embodiment, the sender of the fourth wireless signal and the sender of the first information are non-co-located.
As a sub-embodiment of this embodiment, the fact that the sender of the fourth wireless signal and the sender of the first information are non-co-located means that: the sender of the fourth wireless signal is two different communication devices than the sender of the first information.
As a sub-embodiment of this embodiment, the fact that the sender of the fourth wireless signal and the sender of the first information are non-co-located means that: there is no wired connection between the sender of the fourth wireless signal and the sender of the first information.
As a sub-embodiment of this embodiment, the fact that the sender of the fourth wireless signal and the sender of the first information are non-co-located means that: the sender of the fourth wireless signal is located at a different location than the sender of the first information.
As an embodiment, the sender of the fourth wireless signal is a Remote UE, and the sender of the first information is a Relay UE.
As an embodiment, the sender of the fourth wireless signal is a wearable device, and the sender of the first information is a smart terminal device.
As an embodiment, the sender of the fourth wireless signal is a wearable device and the sender of the first information is a smartphone.
As an embodiment, the sender of the fourth wireless signal is the same as the serving cell maintenance device of the sender of the first information.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
-step a2. sending the second information. The second information is used to determine the first time-frequency resource.
Wherein the second wireless signal is transmitted in the first time-frequency resource.
As one embodiment, the third wireless signal is transmitted in the first time-frequency resource.
Specifically, according to one aspect of the present application, the method is characterized in that the step a further includes the following steps:
-a step a3. receiving third information.
Wherein the third information is used for at least one of { request the first time-frequency resource, adjust the size of the first time-frequency resource }.
In particular, according to one aspect of the present application, the above method is characterized in that the identifier of the first node comprises N bits. The N is one of {50, 24, 16, M }, and M is a positive integer less than 16.
The application discloses a user equipment used for relay communication, which comprises the following modules:
-a first processing module: for receiving a first wireless signal.
-a first sending module: for transmitting the second wireless signal and the third wireless signal.
Wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }. The sender of the first wireless signal is a first node and the receiver of the second wireless signal comprises a second node. The first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals. The K is a positive integer. The third wireless signal is used to determine at least one of:
whether the second radio signal comprises first information or first data
-whether the first node is the serving cell of the UE
-an identity of the first node.
The first information is generated at a physical layer and the first data is generated at a higher layer.
As an embodiment, the first processing module is further configured to determine the first information according to the first wireless signal. The first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals. The K is a positive integer.
For an embodiment, the first processing module is further configured to receive second information. The second information is used to determine the first time-frequency resource. Wherein the second wireless signal is transmitted in the first time-frequency resource.
As an embodiment, the first processing module is further configured to send third information. Wherein the third information is used for at least one of { request the first time-frequency resource, adjust the size of the first time-frequency resource }.
For one embodiment, the first processing module is further configured to receive a fourth wireless signal. Wherein the information related to the fourth wireless signal and the first information are related. The related information includes at least one of { MCS, RV, NDI }. A sender of the fourth wireless signal is the first node.
As an embodiment, the first processing module is further configured to receive fourth information, the fourth information being used to determine information related to the fourth wireless signal, the first information being used to determine the fourth information; or receiving fifth information, the fifth information being used to determine information related to the fourth wireless signal, the fifth information being related to the first information. The sender of the fourth information is the second node, and the sender of the fifth information is the first node.
In particular, according to one aspect of the present application, the above apparatus is characterized in that the identifier of the first node includes N bits. The N is one of {50, 24, 16, M }, and M is a positive integer less than 16.
The application discloses a user equipment used for relay communication, which comprises the following modules:
-a second sending module: for transmitting a first wireless signal.
-a first receiving module: for receiving the fourth information.
Wherein the first wireless signal is used to determine the second wireless signal. The second wireless signal includes one of { first information, first data }. The receiver of the first wireless signal comprises a sender of the second wireless signal. The first information is used to determine the fourth information. The fourth information relates to the first wireless signal received by the first wireless signal receiver. The sender of the fourth information is non-co-located with the receiver of the first wireless signal.
As an embodiment, the second sending module is further configured to send a fourth wireless signal. Wherein the information related to the fourth wireless signal is related to the first information. The related information includes at least one of { MCS, RV, NDI }.
As an embodiment, the second sending module is further configured to send fifth information. Wherein the fifth information is used to determine the correlation information of the fourth wireless signal, the fifth information being correlated with the first information.
The application discloses a base station device used for relay communication, which comprises the following modules:
-a second processing module: for receiving the second wireless signal and the third wireless signal.
-a third sending module: for transmitting the fourth information.
Wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }. The sender of the first wireless signal is a first node. The third wireless signal is used to determine at least one of:
whether the second radio signal comprises first information or first data
-whether the first node is a serving cell of a sender of the second wireless signal
-an identity of the first node.
The first information is generated at a physical layer and the first data is generated at a higher layer. The first information is used to determine the fourth information. The fourth information relates to channel quality related information obtained by the first wireless signal receiver from the first wireless signal. The related information includes at least one of { MCS, RV, NDI }.
As an embodiment, the second processing module is further configured to send second information. The second information is used to determine the first time-frequency resource. Wherein the second wireless signal is transmitted in the first time-frequency resource.
For an embodiment, the second processing module is further configured to receive third information. Wherein the third information is used for at least one of { request the first time-frequency resource, adjust the size of the first time-frequency resource }.
In particular, according to one aspect of the present application, the above apparatus is characterized in that the identifier of the first node includes N bits. The N is one of {50, 24, 16, M }, and M is a positive integer less than 16.
Compared with the prior art, the method has the following technical advantages:
through the first wireless signal, the second wireless signal, and the third wireless signal, the Relay UE is enabled to forward the channel quality related information of the Sidelink (Sidelink) to the base station, so as to implement link adaptation and adaptation of modulation and coding scheme sent by the Relay UE, and improve transmission efficiency.
Through the third wireless signal, when the Relay UE does not need to send the channel quality related information of the Sidelink (Sidelink), the PUSCH of the Relay UE itself can be sent by using the first time/frequency resource, so as to improve the uplink spectrum efficiency.
Through the third wireless signal, the identifier of the first node is indicated, so that the information related to the channel quality of the changed Sidelink (Sidelink) is selectively sent by the Relay UE, and the reporting efficiency of the channel quality of the Sidelink (Sidelink) is further improved.
With the second information and the third information, the first time-frequency resource can be requested and resized, thereby improving the utilization of the time-frequency resource occupied by the channel quality related information for the Sidelink (Sidelink).
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:
fig. 1 shows a flow diagram of relay transmission according to an embodiment of the application;
fig. 2 shows a flow diagram of relay transmission according to another embodiment of the present application;
FIG. 3 shows a flow diagram of the fourth information transfer according to an embodiment of the present application;
FIG. 4 shows a flow diagram of the fourth information transmission according to another embodiment of the present application;
FIG. 5 shows a schematic diagram of the first pool of time-frequency resources according to an embodiment of the present application;
FIG. 6 shows a block diagram of a processing device in a UE according to an embodiment of the present application;
fig. 7 shows a block diagram of a processing device in a UE according to another embodiment of the present application;
fig. 8 shows a block diagram of a processing means in a base station according to an embodiment of the present application;
Detailed Description
The technical solutions of the present application will be further described in detail with reference to the accompanying drawings, and it should be noted that the embodiments and features of the embodiments of the present application can be arbitrarily combined with each other without conflict.
Example 1
Embodiment 1 illustrates a flow chart of relay transmission, as shown in fig. 1. In fig. 1, base station N1 is the maintaining base station for the serving cell of UE U2, base station N1 is also the maintaining base station for the serving cell of UE U3, and the steps identified in block F0 are optional.
For theBase station N1The second information is transmitted in step S10, the third information is received in step S11, and the second wireless signal and the third wireless signal are received in step S12.
For theUE U2In step S20Receiving a first wireless signal, determining a second wireless signal according to the first wireless signal in step S21, receiving second information in step S22, transmitting third information in step S23, and transmitting the second wireless signal and the third wireless signal in step S24.
For theUE U3In step S30, a first wireless signal is transmitted.
As a sub-embodiment, the second wireless signal comprises first information from { first information, first data }, and the first wireless signal comprises at least one of { synchronization sequence, discovery channel, reference signal }.
As a sub-embodiment, the second wireless signal comprises first information and first data, and the first wireless signal comprises first data and at least one of { synchronization sequence, discovery channel, reference signal }.
As a sub-embodiment, the third information is used for at least { adjusting the size of the first time-frequency resource } of { requesting the first time-frequency resource, adjusting the size of the first time-frequency resource }.
As an additional embodiment, the third information is used to adjust the size of the first time-frequency resource.
Example 2
Embodiment 2 illustrates another flow chart of relay transmission, as shown in fig. 2. In fig. 2, base station N4 is the maintaining base station for the serving cell of UE U5, base station N4 is also the maintaining base station for the serving cell of UE U6, and the steps identified in block F1 are optional.
For theBase station N4The third information is received in step S40, the second information is transmitted in step S41, and the second wireless signal and the third wireless signal are received in step S42.
For theUE U5The first wireless signal is received in step S50, the second wireless signal is determined according to the first wireless signal in step S51, the third information is transmitted in step S52, the second information is received in step S53, and the second wireless signal and the third wireless signal are transmitted in step S54.
For theUE U6In step S60, a first wireless signal is transmitted.
As a sub-embodiment, the second wireless signal comprises first information from { first information, first data }, and the first wireless signal comprises at least one of { synchronization sequence, discovery channel, reference signal }.
As a sub-embodiment, the second wireless signal includes first data in { first information, first data }, and the first wireless signal includes first data.
As a sub-embodiment, the second wireless signal comprises first information and first data, and the first wireless signal comprises first data and at least one of { synchronization sequence, discovery channel, reference signal }.
As a sub-embodiment, the third information is used for at least { request the first time-frequency resource } of { request the first time-frequency resource, resize the first time-frequency resource }.
As a subsidiary embodiment of this embodiment, said third information is used to request said first time-frequency resources.
Example 3
Embodiment 3 illustrates a flow chart of the transmission of the fourth information relayed as shown in fig. 3. In fig. 3, base station N7 is a serving base station for UE U8, and base station N7 is also a serving base station for UE U9.
For theThe base station N7 is connected to the base station,the fourth information is transmitted in step S70.
For theUE U8The fifth information is received in step S80, and the fourth wireless signal is received in step S81.
For theUE U9The fourth information is received in step S90, the fifth information is transmitted in step S91, and the fourth wireless signal is transmitted in step S92.
Wherein the fourth information is used to determine information related to the fourth wireless signal and the fifth information is used to determine information related to the fourth wireless signal.
As a sub-embodiment, the DCI Format used by the fourth information is DCI Format 5.
As a sub-embodiment, the SCI Format adopted by the fifth information is SCI Format 0.
Example 4
Embodiment 4 illustrates another flowchart of the transmission of the fourth information relayed as shown in fig. 4. In fig. 4, base station N10 is a serving base station for UE U11, and base station N10 is also a serving base station for UE U12.
For theBase station N10The fourth information is transmitted in step S100.
For theUE U11The fourth information is received in step S110, and the fourth wireless signal is received in step S111.
For theUE U12The fourth information is received in step S120, and a fourth wireless signal is transmitted in step S121.
Wherein the fourth information is used to determine information related to the fourth wireless signal.
As a sub-embodiment, the scrambling method adopted by the fourth information is fixed.
As a sub-embodiment, the scrambling method adopted by the fourth information is predefined.
Example 5
Embodiment 5 illustrates a schematic diagram of the first time-frequency resource pool according to one embodiment of the present application, as shown in fig. 5. In fig. 5, the slashed mark part is a first time-frequency resource pool. As shown in the figure, the first time-frequency resource pool is periodically distributed in the time domain, one subframe in each I subframe belongs to the first time-frequency resource pool, and J is used to represent an offset value of a subframe occupied by the first time-frequency resource pool in one period. In a subframe occupied by the first time-frequency resource pool, the first time-frequency resource pool occupies R PRB pairs on a frequency domain. And the R PRB pairs all belong to the system bandwidth configured by the base station equipment. Wherein I and R are both positive integers and J is a non-negative integer.
As a sub-embodiment, the first time-frequency resource occupies a part of the time-frequency resources of the first time-frequency resource pool.
As a sub-embodiment, the size of at least one of { the J, the I, the R } is related to the number of terminal apparatuses 2 that can be supported by the terminal apparatus 1.
As an auxiliary embodiment of this sub-embodiment, the terminal device 1 is a Relay UE, and the terminal device 2 is a Remote UE.
As an auxiliary embodiment of this sub-embodiment, the terminal device 1 is a smart terminal, and the terminal device 2 is a wearable device.
As a sub-embodiment, at least one of { the J, the I, the R, the positions of the R PRB pairs in the frequency domain } is determined by the first higher layer signaling.
As a subsidiary embodiment of the sub-embodiment, the frequency domain position of the PRB pair occupied by the first time-frequency resource in the R PRB pairs is determined by the second information.
As a sub-embodiment, at least one of { the J, the I, the R, the positions of the R PRB pairs in the frequency domain } is determined by the second information.
As an additional embodiment of this sub-embodiment, R is equal to 1.
As an auxiliary embodiment of the sub-embodiment, the time-frequency resource occupied by the first time-frequency resource belongs to the first time-frequency resource pool, and the first time-frequency resource occupies one PRB pair in the frequency domain and occupies 1 subframe in the time domain.
Example 6
Embodiment 6 is a block diagram illustrating a processing apparatus in a UE, as shown in fig. 6. In fig. 6, the UE processing apparatus 100 is mainly composed of a first processing module 101 and a first sending module 102.
The first processing module 101: for receiving a first wireless signal.
The first sending module 102: for transmitting the second wireless signal and the third wireless signal.
Wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }. The sender of the first wireless signal is a first node and the receiver of the second wireless signal comprises a second node. The first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals. The K is a positive integer. The third wireless signal is used to determine at least one of:
whether the second radio signal comprises first information or first data
-whether the first node is the serving cell of the UE
-an identity of the first node.
The first information is generated at a physical layer and the first data is generated at a higher layer.
As an embodiment, the first processing module 101 is further configured to determine the first information according to the first wireless signal. The first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals. The K is a positive integer.
For an embodiment, the first processing module 101 is further configured to receive second information. The second information is used to determine the first time-frequency resource. Wherein the second wireless signal is transmitted in the first time-frequency resource.
As an embodiment, the first processing module 101 is further configured to send third information. Wherein the third information is used for at least one of { request the first time-frequency resource, adjust the size of the first time-frequency resource }.
For one embodiment, the first processing module 101 is further configured to receive a fourth wireless signal. Wherein the information related to the fourth wireless signal and the first information are related. The related information includes at least one of { MCS, RV, NDI }. A sender of the fourth wireless signal is the first node.
For one embodiment, the first processing module 101 is further configured to receive fourth information, the fourth information being used for determining related information of the fourth wireless signal, the first information being used for determining the fourth information; or receiving fifth information, the fifth information being used to determine information related to the fourth wireless signal, the fifth information being related to the first information. The sender of the fourth information is the second node, and the sender of the fifth information is the first node.
Example 7
Embodiment 7 illustrates a block diagram of a processing apparatus in another UE, as shown in fig. 7. In fig. 7, the UE processing apparatus 200 mainly includes a second sending module 201 and a first receiving module 202.
The second sending module 201: for transmitting a first wireless signal.
The first receiving module 202: for receiving the fourth information.
Wherein the first wireless signal is used to determine the second wireless signal. The second wireless signal includes one of { first information, first data }. The receiver of the first wireless signal comprises a sender of the second wireless signal. The fourth information is used to determine information related to the fourth wireless signal, and the first information is used to determine the fourth information. The fourth information relates to the first wireless signal received by the first wireless signal receiver. The sender of the fourth information is non-co-located with the receiver of the first wireless signal.
For an embodiment, the second sending module 201 is further configured to send a fourth wireless signal. Wherein the information related to the fourth wireless signal is related to the first information. The related information includes at least one of { MCS, RV, NDI }.
As an embodiment, the second sending module 201 is further configured to send fifth information. Wherein the fifth information is used to determine the correlation information of the fourth wireless signal, the fifth information being correlated with the first information.
Example 8
Embodiment 8 is a block diagram illustrating a processing apparatus in a base station device, as shown in fig. 8. In fig. 8, the base station device processing apparatus 300 mainly comprises a second processing module 301 and a third sending module 302.
The second processing module 301: for receiving the second wireless signal and the third wireless signal.
-a third sending module 302: for transmitting the fourth information.
Wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }. The sender of the first wireless signal is a first node. The third wireless signal is used to determine at least one of:
whether the second radio signal comprises first information or first data
-whether the first node is a serving cell of a sender of the second wireless signal
-an identity of the first node.
The first information is generated at a physical layer and the first data is generated at a higher layer. The first information is used to determine the fourth information. The fourth information relates to channel quality related information obtained by the first wireless signal receiver from the first wireless signal. The related information includes at least one of { MCS, RV, NDI }.
For an embodiment, the second processing module 301 is further configured to send second information. The second information is used to determine the first time-frequency resource. Wherein the second wireless signal is transmitted in the first time-frequency resource.
For an embodiment, the second processing module 301 is further configured to receive third information. Wherein the third information is used for at least one of { request the first time-frequency resource, adjust the size of the first time-frequency resource }.
It will be understood by those skilled in the art that all or part of the steps of the above methods may be implemented by instructing relevant hardware through a program, and the program may be stored in a computer readable storage medium, such as a read-only memory, a hard disk or an optical disk. Alternatively, all or part of the steps of the above embodiments may be implemented by using one or more integrated circuits. Accordingly, the module units in the above embodiments may be implemented in a hardware form, or may be implemented in a form of software functional modules, and the present application is not limited to any specific form of combination of software and hardware. The UE and the terminal in the application comprise but are not limited to RFID, terminal equipment of the Internet of things, an MTC (Machine Type Communication) terminal, vehicle-mounted Communication equipment, a wireless sensor, an internet access card, a mobile phone, a tablet computer, a notebook and other wireless Communication equipment. The base station, the base station device, and the network side device in the present application include, but are not limited to, a macro cell base station, a micro cell base station, a home base station, a relay base station, and other wireless communication devices.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (16)

1. A method in a user equipment used for D2D communication, comprising the steps of:
step A: receiving a first wireless signal;
step A3: sending third information;
step A2: receiving second information; the second information is used to determine a first time-frequency resource;
and B: transmitting a second wireless signal and a third wireless signal;
wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising first information or first data; a sender of the first wireless signal is a first node and a recipient of the second wireless signal comprises a second node; the second wireless signal is transmitted in the first time-frequency resource; the third information is used to at least one of request the first time-frequency resource or adjust the size of the first time-frequency resource; the third wireless signal is used to determine at least one of:
whether the second wireless signal includes first information or first data;
whether the first node is a serving cell of the user equipment;
an identification of the first node;
the first information is generated at a physical layer, and the first data is generated at a high layer; the first information includes CSI or the first information includes HARQ-ACK.
2. The method of claim 1, wherein step a further comprises the steps of:
step A1: determining the first information according to the first wireless signal;
the first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals; the K is a positive integer.
3. The method according to claim 1 or 2, wherein said step a further comprises the steps of:
step A4: receiving a fourth wireless signal;
wherein the first information and the related information of the fourth wireless signal are related; the related information comprises at least one of MCS, RV or NDI; a sender of the fourth wireless signal is the first node.
4. The method of claim 3, wherein step A further comprises the steps of:
step A5: receiving fourth information, the fourth information being used to determine information related to the fourth wireless signal, the first information being used to determine the fourth information; or receiving fifth information, the fifth information being used to determine information related to the fourth wireless signal, the fifth information being related to the first information;
wherein the sender of the fourth information is the second node and the sender of the fifth information is the first node.
5. The method of claim 1, wherein the identity of the first node comprises N bits; the N is one of 50, 24, 16 or M, and M is a positive integer less than 16.
6. A method in a user equipment used for D2D communication, comprising the steps of:
step A: transmitting a first wireless signal;
and B: receiving fourth information;
step A5: sending the fifth information;
step A4: transmitting a fourth wireless signal;
wherein the first wireless signal is used to determine a second wireless signal; the second wireless signal comprises first information or first data; the receiver of the first wireless signal comprises a sender of the second wireless signal; the first information is used to determine the fourth information; the fourth information is related to the first wireless signal received by the first wireless signal receiver; a sender of the fourth information is non-co-located with a receiver of the first wireless signal; the first information and the related information of the fourth wireless signal are related, the fourth information being used to determine related information of the fourth wireless signal, the related information comprising at least one of a MCS, a RV, or an NDI; the fifth information is used to determine the related information of the fourth wireless signal, the fifth information being related to the first information; the first information includes CSI or the first information includes HARQ-ACK.
7. A method in a base station used for D2D communication, comprising the steps of:
step A3: receiving third information;
step A2: sending the second information; the second information is used to determine a first time-frequency resource;
step A: receiving a second wireless signal and a third wireless signal;
and B: sending fourth information;
wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising first information or first data; the sender of the first wireless signal is a first node; the third wireless signal is used to determine at least one of:
whether the second wireless signal includes first information or first data;
whether the first node is a serving cell of a sender of the second wireless signal;
an identification of the first node;
the first information is generated at a physical layer, and the first data is generated at a high layer; the first information is used to determine the fourth information; the fourth information relates to channel quality related information obtained by the first wireless signal receiver from the first wireless signal; the related information comprises at least one of MCS, RV or NDI; the second wireless signal is transmitted in the first time-frequency resource; the third information is used to at least one of request the first time-frequency resource or adjust the size of the first time-frequency resource; the first information includes CSI or the first information includes HARQ-ACK.
8. The method of claim 7, wherein the identity of the first node comprises N bits; n is one of 50, 24, 16 or M, M being a positive integer less than 16; the first information includes CSI or the first information includes HARQ-ACK.
9. User equipment used for D2D communication, characterized by the following modules:
a first processing module: for receiving the first wireless signal, receiving the second information, and transmitting the third information;
a first sending module: for transmitting the second wireless signal and the third wireless signal;
wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising one of { first information, first data }; a sender of the first wireless signal is a first node and a recipient of the second wireless signal comprises a second node; the first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals; the K is a positive integer; the second information is used to determine a first time-frequency resource; the second wireless signal is transmitted in the first time-frequency resource; the third information is used to at least one of request the first time-frequency resource or adjust the size of the first time-frequency resource; the third wireless signal is used to determine at least one of:
whether the second wireless signal includes first information or first data;
whether the first node is a serving cell of the user equipment;
an identification of the first node;
the first information is generated at a physical layer, and the first data is generated at a high layer; the first information includes CSI or the first information includes HARQ-ACK.
10. The UE of claim 9, wherein the first processing module is further configured to determine the first information according to the first wireless signal;
the first wireless signal comprises K target time frequency resources, and the K target time frequency resources comprise K reference signals; the K is a positive integer.
11. The user equipment according to claim 9 or 10, wherein the first processing module is further configured to receive a fourth wireless signal;
wherein the first information and the related information of the fourth wireless signal are related; the related information comprises at least one of MCS, RV or NDI; a sender of the fourth wireless signal is the first node.
12. The UE of claim 11, wherein the first processing module is further configured to receive fourth information, the fourth information being used to determine information related to the fourth wireless signal, the first information being used to determine the fourth information; or receiving fifth information, the fifth information being used to determine information related to the fourth wireless signal, the fifth information being related to the first information;
wherein the sender of the fourth information is the second node and the sender of the fifth information is the first node.
13. The UE of claim 9, wherein the first node identifier comprises N bits; the N is one of 50, 24, 16 or M, and M is a positive integer less than 16.
14. User equipment used for D2D communication, characterized by the following modules:
a second sending module: the wireless communication device is used for sending a first wireless signal, a fourth wireless signal and fifth information;
a first receiving module: for receiving fourth information;
wherein the first wireless signal is used to determine a second wireless signal; the second wireless signal comprises first information or first data; the receiver of the first wireless signal comprises a sender of the second wireless signal; the first information is used to determine the fourth information; the fourth information is related to the first wireless signal received by the first wireless signal receiver; a sender of the fourth information is non-co-located with a receiver of the first wireless signal; the fourth information is used to determine information related to the fourth wireless signal, the information related to at least one of a MCS, a RV, or an NDI; the fifth information is used to determine the related information of the fourth wireless signal, the fifth information being related to the first information; the first information includes CSI or the first information includes HARQ-ACK.
15. A base station device used for D2D communication, comprising:
a second processing module: the wireless communication device is used for receiving the second wireless signal and the third wireless signal, sending the second information and receiving the third information;
a third sending module: for sending the fourth information;
wherein the first wireless signal is used to determine a second wireless signal, the second wireless signal comprising first information or first data; the sender of the first wireless signal is a first node; the third wireless signal is used to determine at least one of:
whether the second wireless signal includes first information or first data;
whether the first node is a serving cell of a sender of the second wireless signal;
an identification of the first node;
the first information is generated at a physical layer, and the first data is generated at a high layer; the first information is used to determine the fourth information; the fourth information relates to channel quality related information obtained by the first wireless signal receiver from the first wireless signal; the related information comprises at least one of MCS, RV or NDI; the second information is used to determine a first time-frequency resource; the second wireless signal is transmitted in the first time-frequency resource; the third information is used to at least one of request the first time-frequency resource or adjust the size of the first time-frequency resource.
16. The base station device of claim 15, wherein the identity of the first node comprises N bits; n is one of 50, 24, 16 or M, M being a positive integer less than 16; the first information includes CSI or the first information includes HARQ-ACK.
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