CN103167613B - A kind of D2D transmission lists method for sending information and system - Google Patents
A kind of D2D transmission lists method for sending information and system Download PDFInfo
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Abstract
The invention discloses a kind of D2D transmission lists method for sending information and system, including：D2D equipment sends the request of D2D transmission lists authorizing information to base station；Asked according to D2D transmission list authorizing informations to D2D equipment send feedback informations base station；D2D equipment is according to feedback information transmission or does not send D2D transmission list information.By means of the invention it is possible to carry out the transmission of D2D transmission list information by network-based control, and reduce interference, increase frequency spectrum resource utilization rate.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a method and a system for transmitting D2D transmission list information.
Background
Device-to-Device (D2D) communication based on cellular network is a new technology for directly communicating among a plurality of terminals under the control of the system, which can reduce the occupation of system resources, increase the spectrum efficiency of cellular communication system, reduce the transmission power consumption of terminals and save the network operation cost to a great extent. The cellular network based D2D operates as shown in figure 1.
In order to enable terminals at close distance to conveniently find a communication partner of D2D and further establish a connection to realize D2D transmission, the main method adopted at present is to transmit a signal on a fixed time-frequency resource by one of the terminals, and then receive the signal by the other terminals so as to complete matching between the D2D communication terminals.
However, a very important requirement of the D2D communication technology based on the Long Term Evolution (LTE) system is that D2D transmission performed between D2D devices needs to be controlled by the network, so if the current method of performing signal transmission on a fixed time-frequency resource by one of the terminals is adopted, it is very unfavorable for the network to perform corresponding control on D2D transmission.
In addition, under the condition that the current spectrum resources are very tight, the signal transmission performed by a certain terminal on the fixed time-frequency resources will also possibly bring serious interference to other user signals, and the utilization efficiency of the spectrum resources is reduced.
Disclosure of Invention
In view of this, the present invention provides a method and a system for transmitting D2D transmission list information, so as to solve the problems that a terminal performs signal transmission on a fixed time-frequency resource, which is not favorable for a network to control D2D transmission, generates severe interference, and reduces the utilization rate of spectrum resources.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention discloses a method for sending D2D transmission list information, which comprises the following steps:
the D2D device sends a D2D transmission list information authorization request to the base station;
the base station transmits feedback information to the D2D equipment according to the D2D transmission list information authorization request;
the D2D device transmits or does not transmit the D2D transmission list information according to the feedback information.
Wherein the D2D transmission list information authorization request includes one or more of the following information: request identification, D2D device type, number of transmissions, transmission type, duration, transmission range, and transmission object.
When the D2D transmission list information authorization request includes a plurality of information among the request identification, the D2D device type, the number of transmissions, the transmission type, the duration, the transmission range, and the transmission object, the D2D device transmits the plurality of information to the base station at the same time, or transmits the plurality of information to the base station at different times in batches after freely combining the plurality of information.
The method further comprises the following steps: the D2D device transmits the list information authorization request over one or more of the following messages carrying D2D: RACH preamble message, UCI message, uplink MAC message and uplink RRC message.
The feedback information comprises one or more of the following information: authorization identification, time-frequency resource, sending mode, duration, transmitting power, D2D temporary ID and back-off delay.
When the feedback information includes multiple information of the authorization identifier, the time-frequency resource, the transmission mode, the duration, the transmission power, the D2D temporary ID, and the backoff delay, the base station transmits the multiple information to the D2D device at the same time, or transmits the multiple information to the D2D device in batches at different times after the multiple information is freely combined.
The method further comprises the following steps: the base station carries the feedback information through one or more of the following messages: DCI messages, downlink MAC messages, and downlink RRC messages.
The base station sends feedback information to the D2D device according to the D2D transmission list information authorization request, specifically:
and the base station determines the information contained in the feedback information according to the information contained in the D2D transmission list information authorization request and the system load condition.
When the authorization identifier included in the feedback information indicates that the D2D transport list information authorization request is accepted, and the D2D device sends D2D transport list information, the method further includes: and the D2D equipment sends the D2D transmission list information according to one or more of the transmission quantity, the transmission type, the transmission range, the transmission object, the duration, the time-frequency resource, the sending mode, the sending power and the D2D temporary ID.
When the authorization identifier contained in the feedback information indicates that the D2D transmission list information authorization request is rejected, the D2D equipment does not send the D2D transmission list information;
the feedback information includes a back-off time delay, and the method further includes: and re-sending the D2D transmission list information authorization request to the base station according to the backoff delay.
The invention also provides a system for sending the D2D transmission list information, which comprises: D2D devices and base stations; wherein:
the D2D device, configured to send a D2D transmission list information authorization request to the base station, and send or not send D2D transmission list information according to the feedback information of the base station;
the base station is used for sending feedback information to the D2D equipment according to the D2D transmission list information authorization request.
Wherein the D2D transmission list information authorization request includes one or more of the following information: request identification, D2D device type, number of transmissions, transmission type, duration, transmission range, and transmission object.
The D2D device, further configured to send multiple information to the base station at the same time when the D2D transmission list information authorization request includes multiple information in request identification, D2D device type, transmission number, transmission type, duration, transmission range and transmission object, or send the multiple information to the base station at different times in batches after freely combining the multiple information.
The D2D device is further configured to transmit a list information authorization request over one or more bearers D2D of the following messages: RACH preamble message, UCI message, uplink MAC message and uplink RRC message.
The feedback information comprises one or more of the following information: authorization identification, time-frequency resource, sending mode, duration, transmitting power, D2D temporary ID and back-off delay.
The base station is further configured to send multiple types of information to the D2D device at the same time when the feedback information includes multiple types of information in an authorization identifier, a time-frequency resource, a sending manner, a duration, a transmission power, a D2D temporary ID, and a backoff delay, or send the multiple types of information to the D2D device in batches at different times after the multiple types of information are freely combined.
The base station is further configured to carry the feedback information through one or more of the following messages: DCI messages, downlink MAC messages, and downlink RRC messages.
The base station is further used for determining information contained in the feedback information according to information contained in the D2D transmission list information authorization request and system load conditions.
The D2D device, further configured to send D2D transport list information when the authorization identifier included in the feedback information indicates acceptance of the D2D transport list information authorization request; and transmitting the D2D transmission list information according to one or more of the transmission quantity, the transmission type, the transmission range, the transmission object, the duration, the time-frequency resource, the transmission mode, the transmission power and the D2D temporary ID.
The D2D device, further configured to not send the D2D transport list information when the authorization flag included in the feedback information indicates that the D2D transport list information authorization request is rejected; and the feedback information comprises a back-off time delay, and the D2D transmission list information authorization request is sent to the base station again according to the back-off time delay.
In the method and system for transmitting the D2D transmission list information, a base station, namely a network side determines the content of feedback information according to a D2D transmission list information authorization request transmitted by D2D equipment; then, the D2D device transmits and does not transmit the D2D transfer list information according to the feedback information, and how to transmit the D2D transfer list information. This enables the network to control the D2D transmission. In addition, indexes of a series of transmission D2D transmission list information such as time-frequency resources, transmission modes, duration, transmission power and the like are also specified in the feedback information, and the information is determined by the base station according to the system load condition, so that the generation of interference can be avoided as much as possible, and the utilization rate of spectrum resources can be improved.
Drawings
Figure 1 illustrates the operation of D2D based cellular network;
fig. 2 is a flow chart illustrating a method for transmitting D2D transmission list information according to the present invention;
fig. 3 is a schematic structural diagram of a D2D transmission list information sending system according to the present invention.
Detailed Description
As shown in fig. 2, the D2D transmission list information sending method provided by the present invention includes:
in step 201, the D2D device sends a D2D transmission list information authorization request to the base station.
In the invention, the D2D transmission refers to specific service data content transmitted between D2D devices; and the D2D transmission list information contains information such as title, directory, index, brief introduction, abstract, evaluation, etc. transmitted by the D2D.
Wherein, the D2D transmission list information authorization request includes one or more of the following information: request identification, D2D device type, number of transmissions, transmission type, duration, transmission range, and transmission object;
further, when the D2D transmission list information authorization request includes a plurality of information in the request identification, the D2D device type, the number of transmissions, the transmission type, the duration, the transmission range and the transmission object, the plurality of information may be transmitted at the same time, or the plurality of information may be freely combined and then transmitted at different times in batches;
further, the D2D device may carry the grant request of the D2D transmission list information through one or more of a RACH preamble message, a UCI message, an uplink MAC message, and an uplink RRC message.
Wherein,
a request identifier for indicating whether a D2D transmission list information transmission authorization is requested;
D2D device type to indicate the type or set of types of D2D devices. For example, the D2D devices may be classified into types, and a certain D2D device may correspond to a specific type or a broader type, that is, a type set.
A transfer number indicating an amount of data of the D2D transfer list information and/or an amount of data of the D2D transfer;
a transmission type indicating a type or set of types of D2D transmissions; specifically, the types of D2D transmission include a private unicast service type, a private multicast broadcast service type, a commercial multicast broadcast service type, a social multicast broadcast service type, an emergency communication multicast broadcast service type, and the like; the type set transmitted by D2D refers to one of the sets composed of the propagation types;
a duration indicating a valid length of time for the D2D device to transmit the D2D transport list information and/or a valid length of time for the D2D transport;
a transmission range indicating a geographical range in which the D2D transmission list information is transmitted and/or a geographical range in which the D2D transmission is transmitted;
a transport object to indicate the type or set of types of the D2D transport object. Preferably, the transmission object is a D2D user.
In step 202, the base station transmits feedback information to the D2D device according to the D2D transmission list information authorization request.
The feedback information includes one or more of the following information: authorization identification, time-frequency resource, sending mode, duration, transmitting power, D2D temporary ID and back-off delay.
Further, when the feedback information includes multiple information of the authorization identifier, the time-frequency resource, the transmission mode, the duration, the transmission power, the D2D temporary ID, and the backoff delay, the multiple information may be transmitted at the same time, or may be transmitted in different times in batches after being freely combined.
Further, the base station carries the feedback information through one or more of DCI message, downlink MAC message and downlink RRC message.
Wherein,
an authorization identifier for indicating acceptance or rejection of the D2D transmission list information authorization request;
time-frequency resources, which are used for indicating time and/or frequency occupied by sending D2D transmission list information, or time set and/or frequency set;
a transmission scheme indicating information such as a modulation scheme, a coding scheme, and a precoding matrix used when the D2D transmission list information is transmitted;
a duration indicating a length of time for which the D2D transmission list information is transmitted to last and/or a length of time for which the D2D transmission lasts;
a transmit power indicating a power level required to transmit the D2D transmission list information;
a D2D temporary ID indicating a temporary ID of the D2D device that transmitted the D2D transport list information;
a backoff delay for indicating a length of time, or time period information, that the D2D device needs to delay to retransmit the D2D transmission list information grant request;
specifically, when the base station transmits the feedback information, the content of the feedback information needs to be determined according to the information included in the D2D transmission list information authorization request and the system load condition.
In step 203, the D2D device transmits or does not transmit the D2D transmission list information according to the feedback information.
If the feedback information indicates that the D2D transmission list information authorization request is accepted, the D2D device performs D2D transmission list information transmission according to the feedback information and the D2D transmission list information authorization request, for example: the D2D device transmits the D2D transmission list information according to one or more of the number of transmissions, transmission type, transmission range, transmission object, duration, time-frequency resource, transmission mode, transmission power, and D2D temporary ID.
If the feedback information indicates that the authorization request of the D2D transmission list information is rejected, the D2D device does not transmit the D2D transmission list information; further, if the feedback information includes a backoff delay, the D2D device retransmits the authorization request for transmitting the list information in D2D after delaying the corresponding duration according to the backoff delay.
The D2D device in the invention is a device supporting D2D functions; the base station can be a macro cell base station, a relay station or a heterogeneous network base station.
In the method, the D2D transmission list information is sent under the control of the network, so that the interference can be reduced, and the flexibility of resource allocation and the spectrum utilization rate can be increased.
The invention is illustrated by the following specific examples.
Example one
Assume that the D2D device is a user terminal (UE) supporting D2D functionality and the base station is a macro base station. In this embodiment, the UE sends D2D transmission list information authorization requests to the macro base station multiple times at different times; correspondingly, the base station returns feedback information to the UE for multiple times at different time instants. The specific process is as follows:
1. the UE sends a D2D transmission list information authorization request to the macro base station, and the authorization request comprises the following steps: a request identifier, indicated as: request D2D to transmit a list information grant. Here, the request identity is carried by a RACH preamble message.
2. After receiving the D2D transmission list information authorization request sent by the UE, the macro base station sends feedback information to the D2D device, where the feedback information includes: an authorization token, indicated as: accepting the D2D transmission list information authorization request. Here, the grant identifier is carried by a downlink RRC message.
3. After receiving the feedback information of receiving the D2D transmission list information authorization request, the UE sends a D2D transmission list information authorization request to the macro base station, including: transmission type, number of transmissions, transmission range, and duration.
Wherein the transmission type indicates that the type of the D2D transmission is private service unicast transmission; the transmission quantity indicates that the data quantity transmitted by the D2D is 8787-10287 bytes; the transmission range indicates that the transmission range of the transmission list information of D2D is small indoor; the duration indicates that the effective duration of the D2D transmission list information transmission is 180 seconds.
Here, the transmission type and the transmission quantity are respectively carried by the LCG ID field and the Buffer Size field of the uplink MAC message; the transmission range and duration are carried by uplink RRC messages.
4. The macro base station sends the feedback information to the UE again according to the D2D transmission list information authorization request sent by the UE and the system load condition, and the feedback information includes: duration, D2D temporary ID, time-frequency resource, transmit power, and transmission mode.
Wherein, the effective duration of the transmission list information of the duration indication D2D is 180 seconds; the D2D temporary ID is used to identify the temporary identity of the D2D device when sending the D2D transport list information; the time frequency resource indication sends D2D transmission list information on 4 PRBs near a downlink central frequency point of a 6 th slot (slot) in each wireless frame; the transmission power indicates that the power required to transmit the D2D transmission list information is 15 dBm; the transmission mode indicates that the transmission of the D2D transmission list information adopts QPSK modulation and a 1/3 code rate mode.
Here, the duration and D2D temporary ID are carried by downlink RRC messages; and carrying time frequency resources, a sending mode and transmitting power through the DCI message.
5. And the UE performs unicast transmission of the D2D transmission list information lasting for 180 seconds on the time-frequency resource indicated by the macro base station by using the indicated transmission power (15dBm), the transmission mode (QPSK modulation and 1/3 code rate) and the D2D temporary ID according to the feedback information of the macro base station at this time.
Example two
Assume that the D2D device is a media serving device (media server) supporting D2D functionality and the base station is a macro base station. In this embodiment, the UE sends a D2D transmission list information authorization request to the macro base station only once at the same time; correspondingly, the base station returns feedback information to the UE only once at the same time. The specific process is as follows:
1. the media service equipment sends a D2D transmission list information authorization request to the macro base station, wherein the request comprises: a transmission type, a request identification, a D2D device type, a transmission range, and a transmission object.
Wherein, the transmission type indicates that the type set transmitted by the D2D is a commodity promotion information broadcasting service; the request identifier indicates authorization to transmit list information for request D2D; the type of D2D device indicated by the D2D device type is a media serving device; the transmission range indicates that the sending range of the D2D transmission list information is a large mall; and transmitting the target market member user.
Here, the transmission type is carried through the Establishment Cause field of the uplink RRC message; carrying a request identification through an SR field of the UCI message; the D2D device type, transmission range and transmission object are carried by uplink RRC messages.
2. The macro base station transmits the list information authorization request according to the D2D transmitted by the media service equipment, and transmits feedback information to the media service equipment according to the current system load condition, including: authorization identification, time-frequency resources and transmission power.
Wherein, the authorization identifier is: accepting the D2D transmission list information authorization request; the time frequency resource indication sends D2D transmission list information on 72 subcarriers near the downlink central frequency point of the 1 st slot of the 4 th uplink subframe in each 40 radio frames; the transmit power indicates that 25dBm is the power required to send the D2D transmission list information.
Here, the authorization identifier and the time-frequency resource are carried through a downlink RRC message; the transmit power is carried by the DCI message.
3. And the media service equipment broadcasts and sends the D2D transmission list information on the time-frequency resource indicated by the macro base station by the indicated transmitting power (25dBm) according to the feedback information of the macro base station.
EXAMPLE III
1. The UE sends a D2D transmission list information authorization request to the macro base station, wherein the authorization request comprises the following steps: the request identification is: requesting D2D to transmit list information authorization; the transmission range is: the sending range of the D2D transmission list information is a large square; D2D device types were: a user terminal device; the duration is: D2D transmitting list information for 180 seconds; the transmission types are: the type set of D2D transmission is social service multicast transmission; the transmission number is: the number of D2D transmissions is 79846 ~ 93479 bytes.
Here, the request identification, transmission range, D2D device type and duration are carried by the assignment Cause field of the uplink RRC message; and respectively carrying the transmission type and the transmission quantity through the LCG ID field and the BufferSize field of the uplink MAC message.
2. The macro base station sends feedback information to the UE according to the D2D transmission list information authorization request sent by the UE, where the feedback information includes: the authorization identifier is: refusing D2D to transmit the list information authorization request, carried by the downlink RRC message.
3. And the UE does not transmit the D2D transmission list information according to the feedback information of the macro base station.
Example four
Suppose the D2D device is a UE supporting D2D functionality and the base station is a relay station. In this embodiment, the UE sends a D2D transmission list information authorization request to the macro base station only once at the same time; correspondingly, the base station returns feedback information to the UE only once at the same time. The specific process is as follows:
1. the UE sends a D2D transmission list information authorization request to the relay station, wherein the authorization request comprises:
in the uplink RRC message, the request identifier carried in the Establishment Cause field is: requesting D2D to transmit list information authorization; the type of D2D device carried is: a user terminal device; the transmission range of the bearer is: the sending range of the D2D transmission list information is a large square; the duration of the bearer is: D2D transfer list information is sent continuously for 180 seconds.
The transmission type carried by the LCG ID field of the uplink MAC message is as follows: the type set of D2D transmission is social service multicast transmission; the transmission quantity borne by the Buffer Size field is as follows: the data volume transmitted by the D2D is 79846-93479 bytes.
2. The relay station authorizes the request according to the D2D transmission list information sent by the UE, and sends feedback information to the UE according to the system load condition, wherein the feedback information comprises:
and in the downlink RRC message, the carried authorization identifier is as follows: refusing the D2D to transmit the list information authorization request;
and in the downlink MAC message, the backoff delay carried by the BI field is 480 milliseconds.
3. The UE does not perform D2D transmission list information transmission according to the feedback information of the relay station, and retransmits the D2D transmission list information grant request after a delay of not more than 480 milliseconds.
In order to implement the above method, the present invention further provides a D2D transmission list information sending system, as shown in fig. 3, including: D2D devices and base stations; wherein:
a D2D device for transmitting a D2D transmission list information authorization request to the base station and transmitting or not transmitting D2D transmission list information according to the feedback information of the base station;
and the base station is used for transmitting the feedback information to the D2D equipment according to the D2D transmission list information authorization request.
Wherein, the D2D transmission list information authorization request includes one or more of the following information: request identification, D2D device type, number of transmissions, transmission type, duration, transmission range, and transmission object.
Further, the D2D device is further configured to, when the D2D transmission list information authorization request includes a plurality of information in the request identification, the D2D device type, the number of transmissions, the transmission type, the duration, the transmission range, and the transmission object, transmit the plurality of information to the base station at the same time, or transmit the plurality of information to the base station at different times in batches after freely combining the plurality of information.
D2D device, further configured to transmit the list information authorization request over one or more bearers D2D of the following messages: RACH preamble message, UCI message, uplink MAC message and uplink RRC message.
Wherein the feedback information comprises one or more of the following information: authorization identification, time-frequency resource, sending mode, duration, transmitting power, D2D temporary ID and back-off delay.
Further, the base station is further configured to send multiple types of information to the D2D device at the same time when the feedback information includes multiple types of information among an authorization identifier, a time-frequency resource, a sending manner, a duration, a transmission power, a D2D temporary ID, and a backoff delay, or send multiple types of information to the D2D device in batches at different times after the multiple types of information are freely combined.
The base station is further configured to carry the feedback information through one or more of the following messages: DCI messages, downlink MAC messages, and downlink RRC messages.
And the base station is also used for determining information contained in the feedback information according to the information contained in the D2D transmission list information authorization request and the system load condition.
The D2D device, is also used for when the authorization identifier that the feedback information contains indicates that accepts D2D transmission list information authorization request, send D2D transmission list information; and transmitting the D2D transmission list information according to one or more of the transmission number, transmission type, transmission range, transmission object, duration, time-frequency resource, transmission mode, or transmission power and D2D temporary ID.
The D2D device is further used for not sending the D2D transmission list information when the authorization identifier contained in the feedback information indicates that the D2D transmission list information authorization request is refused; and the feedback information comprises a back-off time delay, and a D2D transmission list information authorization request is sent to the base station again according to the back-off time delay.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (20)
1. A method for transmitting D2D transport list information, the method comprising:
the D2D device sends a D2D transmission list information authorization request to the base station;
the base station transmits feedback information to the D2D equipment according to the D2D transmission list information authorization request;
the D2D device transmits or does not transmit D2D transmission list information according to the feedback information;
wherein, the D2D transmission refers to the specific service data content transmitted between the D2D devices.
2. The D2D transmission list information transmitting method of claim 1, wherein the D2D transmission list information authorization request includes one or more of the following information: request identification, D2D device type, number of transmissions, transmission type, duration, transmission range, and transmission object.
3. The D2D transmission list information transmitting method of claim 2, wherein when the D2D transmission list information authorization request includes a plurality of information among request identification, D2D device type, number of transmissions, transmission type, duration, transmission range and transmission object, the D2D device transmits the plurality of information to the base station at the same time, or transmits the plurality of information to the base station at different times in batches after freely combining the plurality of information.
4. The method for transmitting D2D tL according to claim 2 or 3, wherein the method further comprises: the D2D device transmits the list information authorization request over one or more of the following messages carrying D2D: RACH preamble message, UCI message, uplink MAC message and uplink RRC message.
5. The method for transmitting D2D tL according to claim 1, wherein the feedback information includes one or more of the following information: authorization identification, time-frequency resource, sending mode, duration, transmitting power, D2D temporary ID and back-off delay.
6. The method for transmitting D2D transmission list information according to claim 5, wherein when the feedback information includes multiple information among grant identifier, time-frequency resource, transmission mode, duration, transmission power, D2D temporary ID and backoff delay, the base station transmits the multiple information to the D2D device at the same time, or transmits the multiple information to the D2D device in batch at different times after freely combining the multiple information.
7. The method for transmitting D2D tL according to claim 5 or 6, wherein the method further comprises: the base station carries the feedback information through one or more of the following messages: DCI messages, downlink MAC messages, and downlink RRC messages.
8. The D2D transmission list information sending method of claim 2 or 5, wherein the base station sends feedback information to the D2D device according to the D2D transmission list information authorization request, specifically:
and the base station determines the information contained in the feedback information according to the information contained in the D2D transmission list information authorization request and the system load condition.
9. The D2D transportation list information sending method of claim 1, 2 or 5, wherein the feedback information includes an authorization identifier indicating that when the D2D transportation list information authorization request is accepted, the D2D device sends D2D transportation list information, and the method further comprises: and the D2D equipment sends the D2D transmission list information according to one or more of the transmission quantity, the transmission type, the transmission range, the transmission object, the duration, the time-frequency resource, the sending mode, the sending power and the D2D temporary ID.
10. The method for transmitting D2D playlist information according to claim 1, 2 or 5, wherein the D2D device does not transmit D2D playlist information when the grant flag contained in the feedback information indicates that the D2D grant request is rejected;
the feedback information includes a back-off time delay, and the method further includes: and re-sending the D2D transmission list information authorization request to the base station according to the backoff delay.
11. A D2D transmission list information transmission system, comprising: D2D devices and base stations; wherein:
the D2D device, configured to send a D2D transmission list information authorization request to the base station, and send or not send D2D transmission list information according to the feedback information of the base station;
the base station is used for sending feedback information to the D2D equipment according to the D2D transmission list information authorization request;
wherein, the D2D transmission refers to the specific service data content transmitted between the D2D devices.
12. The D2D transmission list information transmission system according to claim 11, wherein the D2D transmission list information authorization request includes one or more of the following information: request identification, D2D device type, number of transmissions, transmission type, duration, transmission range, and transmission object.
13. The D2D transmission list information transmission system according to claim 12, wherein,
the D2D device, further configured to send multiple information to the base station at the same time when the D2D transmission list information authorization request includes multiple information in request identification, D2D device type, transmission number, transmission type, duration, transmission range and transmission object, or send the multiple information to the base station at different times in batches after freely combining the multiple information.
14. The D2D transmission list information transmission system according to claim 12 or 13, wherein,
the D2D device is further configured to transmit a list information authorization request over one or more bearers D2D of the following messages: RACH preamble message, UCI message, uplink MAC message and uplink RRC message.
15. The D2D transmission list information transmission system according to claim 11, wherein the feedback information includes one or more of the following information: authorization identification, time-frequency resource, sending mode, duration, transmitting power, D2D temporary ID and back-off delay.
16. The D2D transmission list information transmission system according to claim 15, wherein,
the base station is further configured to send multiple types of information to the D2D device at the same time when the feedback information includes multiple types of information in an authorization identifier, a time-frequency resource, a sending manner, a duration, a transmission power, a D2D temporary ID, and a backoff delay, or send the multiple types of information to the D2D device in batches at different times after the multiple types of information are freely combined.
17. The D2D transmission list information transmission system according to claim 15 or 16, wherein,
the base station is further configured to carry the feedback information through one or more of the following messages: DCI messages, downlink MAC messages, and downlink RRC messages.
18. The D2D transmission list information transmission system according to claim 12 or 15, wherein,
the base station is further used for determining information contained in the feedback information according to information contained in the D2D transmission list information authorization request and system load conditions.
19. The D2D transfer list information transmission system according to claim 11, 12 or 15, wherein,
the D2D device, further configured to send D2D transport list information when the authorization identifier included in the feedback information indicates acceptance of the D2D transport list information authorization request; and transmitting the D2D transmission list information according to one or more of the transmission quantity, the transmission type, the transmission range, the transmission object, the duration, the time-frequency resource, the transmission mode, the transmission power and the D2D temporary ID.
20. The D2D transfer list information transmission system according to claim 11, 12 or 15, wherein,
the D2D device, further configured to not send the D2D transport list information when the authorization flag included in the feedback information indicates that the D2D transport list information authorization request is rejected; and the feedback information comprises a back-off time delay, and the D2D transmission list information authorization request is sent to the base station again according to the back-off time delay.
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| CN104918299B (en) * | 2014-03-14 | 2020-04-17 | 北京三星通信技术研究有限公司 | Method for supporting UE access control |
| CN105307256B (en) * | 2014-08-01 | 2019-05-03 | 电信科学技术研究院 | A kind of D2D transmission power control method and device |
| KR102183333B1 (en) * | 2014-08-08 | 2020-11-26 | 주식회사 아이티엘 | Method and apparatus for transmitting buffer status report in wireless communication system supporting device to device communication |
| CN105472740A (en) * | 2014-08-21 | 2016-04-06 | 中兴通讯股份有限公司 | Device-to-device (D2D) information notification method, user terminal and base station |
| CN105578532A (en) * | 2014-10-09 | 2016-05-11 | 中兴通讯股份有限公司 | Device-to-device interference coordination method, device, base station, and user equipment |
| WO2017146781A1 (en) * | 2016-02-26 | 2017-08-31 | Intel Corporation | User equipment (ue) and method of sidelink communication in fifth generation (5g) new radio (nr) things networks |
| CN108605336B (en) * | 2016-03-14 | 2021-06-01 | 华为技术有限公司 | Resource indication method, related equipment and system |
| CN107734543A (en) * | 2016-08-10 | 2018-02-23 | 中兴通讯股份有限公司 | A kind of resource allocation method and device |
| CN106412921B (en) * | 2016-11-03 | 2019-11-01 | 桂林电子科技大学 | The grouping spectrum auction method of heterogeneous network comprising Home eNodeB |
| CN109309964B (en) | 2017-07-28 | 2022-04-05 | 华为技术有限公司 | Communication method, related equipment and system |
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