CN104303579A - Transmission method, user equipment and wireless communication node - Google Patents
Transmission method, user equipment and wireless communication node Download PDFInfo
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- CN104303579A CN104303579A CN201380002705.0A CN201380002705A CN104303579A CN 104303579 A CN104303579 A CN 104303579A CN 201380002705 A CN201380002705 A CN 201380002705A CN 104303579 A CN104303579 A CN 104303579A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
- H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1854—Scheduling and prioritising arrangements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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Abstract
The invention provides a transmission method, user equipment and a wireless communication node. When a subframe N receives a first message sent by a first wireless communication node and a second message sent by a second wireless communication node, wherein the first message is data information or scheduling information and the second message is data information or scheduling information, the first wireless communication node and the second wireless communication node are service nodes of the user equipment UE. According to message types of the first message and the second message, a subframe M after the subframe N sends a third message only to the first wireless communication node or only to the second wireless communication node, so that a problem that the user equipment cannot send the third message corresponding to a message to one service node when receiving the messages of the two service nodes at the same time is solved.
Description
Technical Field
The present invention belongs to the field of communications, and in particular, to a transmission method, a user equipment, and a wireless communication node.
Background
With the development of the mobile internet, User Equipment (UE) has higher and higher demand for bandwidth, and in order to improve the throughput of the network, a plurality of small sites may be introduced into a cell of a macro network to form a small cell, and the small cell may be deployed in a service hot spot area or a coverage hole area. Thus, when the UE moves to these areas, the traffic of the UE can be switched to these small cells, so as to achieve the purpose of increasing the system capacity, increasing the user throughput, or improving the coverage. These small sites may be small base stations, micro base stations, home base stations, Remote Radio Heads (RRHs), or relay stations.
In an existing Carrier Aggregation (CA) network, a base station allocates radio resources in a unified manner, and a UE receives downlink data from an Evolved NodeB (eNB) and an RRH, and sends acknowledgement/negative acknowledgement (ACK/NACK) feedback information of Hybrid automatic repeat Request (HARQ) of the downlink data of the eNB and the RRH to the eNB on a Physical Uplink Control Channel (PUCCH) of the eNB according to a timing requirement of the prior art.
Unlike CA, when the UE receives data transmitted by the first wireless communication node and the second wireless communication node, the UE cannot transmit HARQ feedback information of the data transmitted by the first wireless communication node to the first wireless communication node and transmit HARQ feedback information of the data transmitted by the second wireless communication node to the second wireless communication node according to the prior art timing sequence, because the first wireless communication node and the second wireless communication node are non-ideal backhaul links. In some scenarios, for example, when the UE does not support multi-antenna transmission or the UE does not support two uplink radio frequency links, when the UE receives first information transmitted from a first wireless communication node and second information transmitted from a second wireless communication node in the same subframe, where the first information and the second information include data information or user equipment scheduling information of a user equipment, but cannot transmit information to the first wireless communication node and the second wireless communication node in the same subframe; under a new network architecture, there are a problem of HARQ feedback collision of data information, a problem of collision of HARQ feedback of data information and data to be transmitted, or a problem of collision of data to be transmitted, which is caused by that the UE cannot simultaneously transmit information to the first wireless communication node and the second wireless communication node.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a transmission method, a user equipment, and a wireless communication node, which solve the HARQ feedback collision problem of data information, the HARQ feedback collision problem of data information and collision problem of data to be transmitted, and the collision problem of data to be transmitted, which are caused by that a UE cannot transmit information to a first wireless communication node and a second wireless communication node in the same subframe.
In a first aspect, a method of transmission, the method comprising:
receiving first information sent by a first wireless communication node and second information sent by a second wireless communication node at a subframe N, wherein the first information is data information or scheduling information, the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of User Equipment (UE);
and according to the information types of the first information and the second information, sending third information only to the first wireless communication node or only to the second wireless communication node in a subframe M after the subframe N.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the receiving, in subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node includes:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the sending, according to the information types of the first information and the second information, third information to only the first wireless communication node or only the second wireless communication node in a subframe M after the subframe N includes:
and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the wireless communication node to which the primary cell Pcell belongs.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, before the step of receiving, in subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node, the method further includes:
receiving a configuration message sent by the first wireless communication node, wherein the configuration message carries identification information of the wireless communication node, and the identification information is used for indicating the first wireless communication node or the second wireless communication node;
the sending, according to the information types of the first information and the second information, third information to only the first wireless communication node or only the second wireless communication node in a subframe M after the subframe N includes:
and according to the information types of the first information and the second information, the subframe M after the subframe N only sends the third information to the wireless communication node corresponding to the identification information.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the identification information is a physical cell identity PCI, an E-UTRAN cell global identity ECGI, or other identification information used by the UE to identify the wireless communication node.
With reference to the first aspect or the first possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the sending, according to the information types of the first information and the second information, third information to only the first wireless communication node or only the second wireless communication node in a subframe M after the subframe N includes:
transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and subframe M;
transmitting the third information to the first wireless communication node or the second wireless communication node that did not transmit a collision indication at the subframe M;
wherein the collision indication is used to notify the first wireless communication node that third information is not to be transmitted to the first wireless communication node in subframe M, or the collision indication is used to notify the second wireless communication node that third information is not to be transmitted to the second wireless communication node in subframe M.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the sending, by the subframe between the subframe N and the subframe M, a collision indication to the first wireless communication node or the second wireless communication node includes:
randomly transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and subframe M.
With reference to the fifth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the sending, by the subframe between the subframe N and the subframe M, a collision indication to the first wireless communication node or the second wireless communication node includes:
and sending a conflict indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M.
With reference to the fifth possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the sending, by the subframe between the subframe N and the subframe M, a collision indication to the first wireless communication node or the second wireless communication node includes:
and according to the received configuration message sent by the first wireless communication node, sending a conflict indication to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M.
With reference to the fifth possible implementation manner of the first aspect, the sixth possible implementation manner of the first aspect, the seventh possible implementation manner of the first aspect, or the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the method further includes:
if a subframe cannot be found between the subframe N and the subframe M to send a collision indication to the second wireless communication node before the subframe M sends the third message to the first wireless communication node, only sending the third message to the first wireless communication node in the subframe M;
or, if a subframe cannot be found between the subframe N and the subframe M to send a collision indication to the first-line communication node before the subframe M sends the third message to the second wireless communication node, only sending the third message to the second wireless communication node in the subframe M.
In a second aspect, a method of transmission, the method comprising:
receiving first information sent by a first wireless communication node and second information sent by a second wireless communication node at a subframe N, wherein the first information is data information or scheduling information, the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of User Equipment (UE);
and according to the information types of the first information and the second information, respectively sending third information to the first wireless communication node and fourth information to the second wireless communication node in different subframes after the subframe N.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the receiving, at subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node includes:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the sending, to the first wireless communication node and sending, to the second wireless communication node, fourth information in different subframes after the subframe N according to the information types of the first information and the second information includes:
before a subframe M sends third information to a first wireless communication node, sending a collision indication to a second wireless communication node in a certain subframe between the subframe N and the subframe M; sending third information to a first wireless communication node in a subframe M, and sending fourth information to a second wireless communication node in a subframe after the subframe M;
or before the subframe M sends the fourth information to the second wireless communication node, sending a collision indication to the first wireless communication node in a certain subframe between the subframe N and the subframe M; and in a subframe M, the UE sends fourth information to the second wireless communication node, and in a subframe after the subframe M, the UE sends the third information to the first wireless communication node.
With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the conflict indication may carry the following information:
and carrying subframe information for informing the second wireless communication node of fourth information sent by the UE to the second wireless communication in a subframe corresponding to the subframe number.
Or, the UE carries time window information for notifying the second wireless communication node of fourth information that the UE transmits to the second wireless communication in a certain subframe within the time window after the subframe M.
Or after the second wireless communication node knows the conflict indication, the time frequency resource information for receiving the fourth information is calculated according to the sending time frequency resource information of the conflict indication.
With reference to the second possible implementation manner of the second aspect or the third possible implementation manner of the second aspect, in a fourth possible implementation manner of the second aspect, the sending, to the first wireless communication node or the second wireless communication node, a collision indication in a certain subframe between the subframe N and the subframe M includes:
and randomly sending a collision indication to the first wireless communication node or the second wireless communication node, or sending a collision indication to a wireless communication node to which the Scell belongs in a subframe between the subframe N and the subframe M, or sending a collision indication to a wireless communication node indicated by the identifier which is not included in the configuration message in a subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
With reference to the second possible implementation manner of the second aspect, the third possible implementation manner of the second aspect, or the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the method further includes:
when a subframe cannot be found between the subframe N and the subframe M before the subframe M sends the third information to the first wireless communication node to send a collision indication to the second wireless communication node, not sending the collision indication to the second wireless communication node, and only sending the third information to the first wireless communication node at the subframe M;
or, when a subframe cannot be found between the subframe N and the subframe M to send the collision indication to the first wireless communication node before the subframe M sends the fourth information to the second wireless communication node, the collision indication is not sent to the first wireless communication node, and only the fourth information is sent to the second wireless communication node in the subframe M.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, before the step of receiving, at subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node, the method further includes:
receiving an asynchronous feedback mode configured for the UE by the first wireless communication node;
the sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
before a subframe M sends third information to a first wireless communication node, sending an asynchronous feedback mode switching indication to a second wireless communication node in a certain subframe between the subframe N and the subframe M; in a subframe M, UE sends third information to a first wireless communication node, and sends fourth information to a second wireless communication node in a certain subframe after the subframe M, wherein the asynchronous feedback mode switching indication is used for informing the second wireless communication node, and the UE sends the fourth information to the second wireless communication node in a certain subframe in a time window after the subframe M;
or before the subframe M sends fourth information to the second wireless communication node, the UE sends an asynchronous feedback mode switching indication to the first wireless communication node in a certain subframe between the subframe N and the subframe M; and in a subframe M, the UE sends fourth information to the second wireless communication node, and sends third information to the first wireless communication node in a subframe after the subframe M, wherein the asynchronous feedback mode switching indication is used for informing the first wireless communication node, and the UE sends the third information to the first wireless communication node in a subframe in a time window after the subframe M.
With reference to the sixth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the sending, to the first wireless communication node or the second wireless communication node, an asynchronous feedback mode switching indication in a certain subframe between the subframe N and the subframe M includes:
and randomly selecting to send an asynchronous feedback switching instruction to the first wireless communication node or the second wireless communication node, or sending an asynchronous feedback mode switching instruction to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M, or sending an asynchronous feedback mode switching instruction to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
With reference to the sixth possible implementation manner of the second aspect or the seventh possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the method further includes:
when the UE cannot find a subframe between the subframe N and the subframe M to send the asynchronous feedback mode indication to the second wireless communication node before the subframe M sends the third information to the first wireless communication node, the UE does not send the asynchronous feedback mode indication to the second wireless communication node, and only sends the third information to the first wireless communication node in the subframe M;
or, when the UE cannot find a subframe between the subframe N and the subframe M to send the asynchronous feedback mode indication to the first wireless communication node before the subframe M sends the fourth information to the second wireless communication node, the UE does not send the asynchronous feedback mode indication to the first wireless communication node, and only sends the third information to the first wireless communication node in the subframe M.
With reference to the second aspect or the first possible implementation manner of the second aspect, in a ninth possible implementation manner of the second aspect, before the step of receiving, at subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node, the method further includes:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode;
the sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
according to the synchronous feedback mode, the UE sends third information to the first wireless communication node in the subframe M; according to the asynchronous feedback mode, the UE sends fourth information to a second wireless communication node in a certain subframe in a time window after the subframe M;
alternatively, before the step of receiving the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the method further includes:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is an asynchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is a synchronous feedback mode;
the sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
according to a synchronous feedback mode, the UE sends first wire information to a second wireless communication node in the subframe M; and according to the asynchronous feedback mode, the UE sends third information to the first wireless communication node in a certain subframe in a time window after the subframe M.
In a third aspect, a method of transmission, the method comprising:
when the wireless communication node is a first wireless communication node, the wireless communication node is used for sending first information to the UE, and when the wireless communication node is a second wireless communication node, the wireless communication node is used for sending second information to the UE;
and when the wireless communication node is a second wireless communication node, the wireless communication node is used for receiving fourth information sent to the second wireless communication node by the UE according to the information types of the first information and the second information.
With reference to the third aspect, in a first possible implementation manner of the third aspect, before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a first configuration message to the UE, wherein the first configuration message carries an identifier of the first wireless communication node or an identifier of the second wireless communication node, and the identifier is used for indicating the UE to send third information to the first wireless communication node or the second wireless communication node corresponding to the identifier.
With reference to the third aspect, in a second possible implementation manner of the third aspect, before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a second configuration message to the UE, wherein the second configuration message carries the asynchronous feedback mode configured for the UE by the first wireless communication node.
With reference to the third aspect, in a third possible implementation manner of the third aspect, before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a third configuration message to the UE, wherein the third configuration message carries a synchronous feedback mode configured by the first wireless communication node for the first wireless communication node, and the second wireless communication node is an asynchronous feedback mode configured by the UE.
In a fourth aspect, a user equipment, the user equipment comprising:
a first receiving unit, configured to receive, at a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, where the first information is data information or scheduling information, and the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of a user equipment UE;
a first sending unit, configured to send, according to information types of the first information and the second information, third information only to the first wireless communication node or only to the second wireless communication node in a subframe M after the subframe N.
With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the first receiving unit is specifically configured to:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the first sending unit is specifically configured to:
and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the wireless communication node to which the primary cell Pcell belongs.
With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the user equipment further includes a second receiving unit, where the second receiving unit is specifically configured to:
and receiving a configuration message sent by the first wireless communication node, wherein the configuration message carries identification information of the wireless communication node, and the identification information is used for indicating the first wireless communication node or the second wireless communication node.
With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the identification information is a physical cell identity PCI, an E-UTRAN cell global identity ECGI, or other identification information used by the UE to identify the wireless communication node.
With reference to the fourth aspect or the first possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the user equipment further includes a second sending unit, where the second sending unit is specifically configured to:
transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and subframe M.
With reference to the fifth possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the second sending unit is specifically configured to:
randomly transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and the subframe M, wherein the collision indication is used for informing the second wireless communication node that the UE does not transmit third information to the second wireless communication node in the subframe M.
With reference to the fifth possible implementation manner of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the second sending unit is specifically configured to:
and sending a conflict indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M.
With reference to the fifth possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the second sending unit is specifically configured to:
and according to the configuration message sent by the first wireless communication node and received by the second receiving unit, in the subframe between the subframe N and the subframe M, the second sending unit sends a collision indication to the wireless communication node indicated by the identifier which is not contained in the configuration message.
With reference to the fifth possible implementation manner of the fourth aspect, or the sixth possible implementation manner of the fourth aspect, or the seventh possible implementation manner of the fourth aspect, or the eighth possible implementation manner of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the user equipment further includes a first processing unit, where the first processing unit is specifically configured to:
if the first processing unit cannot find a subframe for sending the conflict indication to the second wireless communication node between the subframe N and the subframe M before the subframe M sends the third message to the first wireless communication node, if the first processing unit cannot find a subframe for sending the conflict indication to the second wireless communication node between the subframe N and the subframe M, the first sending unit only sends the third message to the first wireless communication node in the subframe M; or,
before the subframe M sends a third message to the second wireless communication node, the first processing unit searches for a subframe for sending a collision indication to the first wireless communication node between the subframe N and the subframe M, and if the first processing unit cannot find a subframe between the subframe N and the subframe M to send the collision indication to the first line communication node before the subframe M sends the third message to the second wireless communication node, the first sending unit sends the third message to the second wireless communication node only in the subframe M.
In a fifth aspect, a user equipment, the user equipment comprising:
a first receiving unit, configured to receive, at a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, where the first information is data information or scheduling information, and the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of a user equipment UE;
a first sending unit, configured to send, according to information types of the first information and the second information, third information to the first wireless communication node and fourth information to the second wireless communication node in different subframes after the subframe N, respectively.
With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the first receiving unit is specifically configured to:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the user equipment further includes a second sending unit, where the second sending unit is specifically configured to:
in a subframe M, before the first transmitting unit transmits the third information to the first wireless communication node, the second transmitting unit transmits a collision indication to the second wireless communication node in a certain subframe between the subframe N and the subframe M;
or, in a subframe M, before the first transmitting unit transmits the fourth information to the second wireless communication node, the second transmitting unit transmits a collision indication to the first wireless communication node in a certain subframe between the subframe N and the subframe M.
With reference to the second possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the conflict indication may carry the following information:
the second wireless communication node is used for notifying the first wireless communication node of the first information sent by the first sending unit to the second wireless communication node in the subframe corresponding to the subframe number; or,
the second wireless communication node is used for receiving a second message sent by the first sending unit to the second wireless communication node in a certain subframe in a time window after the subframe M; or,
and after the second wireless communication node learns the conflict indication, calculating the time frequency resource information for receiving the fourth information according to the sending time frequency resource information of the conflict indication.
With reference to the second possible implementation manner of the fifth aspect or the third possible implementation manner of the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the second sending unit is further configured to:
and randomly sending a collision indication to the first wireless communication node or the second wireless communication node, or sending the collision indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M, or sending the collision indication to the wireless communication node which is not indicated by the identifier contained in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
With reference to the second possible implementation manner of the fifth aspect, the third possible implementation manner of the fifth aspect, or the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the user equipment further includes a first processing unit, where the first processing unit is specifically configured to:
before the subframe M sends the third message to the first wireless communication node, the first processing unit searches for a subframe for sending a collision indication to the second wireless communication node between the subframe N and the subframe M, if a subframe cannot be found between the subframe N and the subframe M to send the collision indication to the second wireless communication node, the second sending unit does not send the collision indication to the second wireless communication node, and in the subframe M, the first sending unit only sends the third message to the first wireless communication node; or,
before the subframe M sends the fourth message to the second wireless communication node, the first processing unit searches for a subframe for sending a collision indication to the first wireless communication node between the subframe N and the subframe M, if a subframe cannot be found between the subframe N and the subframe M to send the collision indication to the first wireless communication node, the second sending unit does not send the collision indication to the first wireless communication node, and in the subframe M, the first sending unit only sends the fourth message to the second wireless communication node.
With reference to the fifth aspect or the first possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the user equipment further includes a second receiving unit, where the second receiving unit is specifically configured to:
and receiving the asynchronous feedback mode configured for the UE by the first wireless communication node.
With reference to the sixth possible implementation manner of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the user equipment further includes a third sending unit, where the third sending unit is specifically configured to:
before a subframe M sends third information to a first wireless communication node, the first sending unit sends an asynchronous feedback mode switching instruction to the second wireless communication node in a certain subframe between the subframe N and the subframe M, wherein the asynchronous feedback mode switching instruction is used for notifying the second wireless communication node, and the first sending unit sends fourth information to the second wireless communication node in a certain subframe in a time window after the subframe M; or,
before a subframe M sends fourth information to a second wireless communication node, in a subframe between the subframe N and the subframe M, the first sending unit sends an asynchronous feedback mode switching instruction to the first wireless communication node, where the asynchronous feedback mode switching instruction is used to notify the first wireless communication node, and the first sending unit sends third information to the first wireless communication node in a subframe within a time window after the subframe M.
With reference to the seventh possible implementation manner of the fifth aspect, in an eighth possible implementation manner of the fifth aspect, the third sending unit is further configured to:
and randomly selecting to send an asynchronous feedback switching instruction to the first wireless communication node or the second wireless communication node, or sending an asynchronous feedback mode switching instruction to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M, or sending an asynchronous feedback mode switching instruction to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
With reference to the sixth possible implementation manner of the fifth aspect, the seventh possible implementation manner of the fifth aspect, or the eighth possible implementation manner of the fifth aspect, in a ninth possible implementation manner of the fifth aspect, the user equipment further includes a second processing unit, and the second processing unit is specifically configured to:
before the subframe M sends the third message to the first wireless communication node, the first sending unit searches for a subframe which sends an asynchronous feedback mode switching instruction to the second wireless communication node between the subframe N and the subframe M, if the second processing unit cannot find a subframe which sends an asynchronous feedback mode switching instruction to the second wireless communication node between the subframe N and the subframe M, the second sending unit does not send the asynchronous feedback mode switching instruction to the second wireless communication node, and in the subframe M, the first sending unit only sends the third message to the first wireless communication node; or,
before the subframe M sends the third message to the second wireless communication node, the first sending unit searches for a subframe which sends an asynchronous feedback mode switching instruction to the first wireless communication node between the subframe N and the subframe M, if the second processing unit cannot find a subframe which sends an asynchronous feedback mode switching instruction to the first wireless communication node between the subframe N and the subframe M, the second sending unit does not send the asynchronous feedback mode switching instruction to the first wireless communication node, and in the subframe M, the first sending unit only sends the fourth message to the second wireless communication node.
With reference to the sixth possible implementation manner of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the second receiving is further configured to:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode; alternatively, the feedback mode includes: the feedback mode of the second wireless communication node and the UE is a synchronous feedback mode, and the feedback mode of the first wireless communication node and the UE is an asynchronous feedback mode.
In a sixth aspect, a wireless communication node, the wireless communication node comprising:
a first sending unit, configured to send first information to the UE when the wireless communication node is a first wireless communication node, and send second information to the UE when the wireless communication node is a second wireless communication node;
a first receiving unit, configured to receive, when a wireless communication node is a first wireless communication node, third information sent by the UE to the first wireless communication node according to the information types of the first information and the second information, and, when the wireless communication node is a second wireless communication node, receive, by the UE, fourth information sent by the UE to the second wireless communication node according to the information types of the first information and the second information.
With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the wireless communication node further includes a second sending unit, where the second sending unit is specifically configured to:
and sending a first configuration message to the UE, wherein the first configuration message carries an identifier of the first wireless communication node or an identifier of the second wireless communication node, and the identifier is used for indicating the UE to send third information to the first wireless communication node or the second wireless communication node corresponding to the identifier.
With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the second sending unit is further configured to:
and sending a second configuration message to the UE, wherein the second configuration message carries the asynchronous feedback mode configured for the UE by the first wireless communication node.
With reference to the first possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the second sending unit is further configured to:
and sending a third configuration message to the UE, where the third configuration message carries a second synchronous feedback mode configured for the UE by the first wireless communication node, and the second wireless communication node is an asynchronous feedback mode configured for the UE, or the third configuration message carries a second synchronous feedback mode configured for the UE by the second wireless communication node, and the first wireless communication node is an asynchronous feedback mode configured for the UE.
In a seventh aspect, a user equipment, the user equipment comprising a processor, a communication interface, a memory, and a bus:
the processor, the communication interface and the memory complete mutual communication through a bus;
the communication interface is used for communicating with a wireless communication node;
the memory is used for storing programs;
the processor is used for executing programs;
wherein the program is adapted to perform the method of claims 1-10 or claims 11-20.
In an eighth aspect, a wireless communication node comprises a processor, a communication interface, a memory, and a bus:
the processor, the communication interface and the memory complete mutual communication through a bus;
the communication interface is used for communicating with a wireless communication node;
the processor is used for executing programs;
the memory is used for storing programs;
wherein the program is adapted to perform the method of claims 21-24.
Compared with the prior art, the invention provides a transmission method, in the method, a subframe N is used for receiving first information sent by a first wireless communication node and second information sent by a second wireless communication node, the first information is data information or scheduling information, the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are service nodes of User Equipment (UE); and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the first wireless communication node or only to the second wireless communication node, so that the problem that the user equipment cannot send the third information corresponding to the information to one service node after receiving the information of the two service nodes at the same time is solved.
Drawings
FIG. 1 is a schematic diagram of a network environment provided by the present invention;
fig. 2 is a flow chart of a method of transmission according to an embodiment of the present invention;
fig. 3 is a flow chart of a method of transmission according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a transmission method according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a transmission method according to an embodiment of the present invention;
fig. 6 is a flow chart of a method of transmission according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a transmission method according to an embodiment of the present invention;
fig. 8 is a schematic diagram of a transmission method according to an embodiment of the present invention;
FIG. 9 is a D2D application scenario provided by the present invention;
fig. 10 is a device structure diagram of a user equipment according to an embodiment of the present invention;
fig. 11 is a device structure diagram of a user equipment according to an embodiment of the present invention;
fig. 12 is a diagram illustrating an apparatus structure of a wireless communication node according to an embodiment of the present invention;
fig. 13 is a device structure diagram of a user equipment according to an embodiment of the present invention;
fig. 14 is a diagram illustrating an apparatus structure of a wireless communication node according to an embodiment of the present invention.
Detailed Description
The network architecture comprises a first wireless communication node, a second wireless communication node and UE, wherein the first wireless communication node and the second wireless communication node are connected through a non-ideal backhaul link. The first wireless communication node and the second wireless communication node may specifically be base stations (specifically, base stations in various forms such as a macro base station, a relay base station, a home base station, a small base station, a micro base station, and a pico base station), or wireless communication nodes having a scheduling function. Wherein the first wireless communication communicates with the user equipment via one or more cells and the second wireless communication communicates with the user equipment via one or more cells.
For convenience of description, the network environment of the present invention is described by taking the first wireless communication node as a macro base station and the second wireless communication node as a micro base station as an example.
Referring to fig. 1, fig. 1 is a schematic diagram of a network environment provided by the present invention. The network in fig. 1 includes a macro base station, a micro base station, and a user equipment. The macro base station and the micro base station are connected through a non-ideal backhaul link. The user equipment receives the services of the macro base station and the micro base station at the same time, namely the macro base station and the micro base station are service nodes of the user equipment at the same time.
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the embodiments of the invention.
Referring to fig. 2, fig. 2 is a flowchart of a method for transmission according to an embodiment of the present invention. As shown in fig. 2, the method comprises the steps of:
step 201, receiving first information sent by a first wireless communication node and second information sent by a second wireless communication node at a subframe N, where the first information is data information or scheduling information, and the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of a user equipment UE;
the receiving, at subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node includes:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
Specifically, the data information sent by the first wireless communication node is downlink data sent by the first wireless communication node to the UE, where the downlink data includes user plane data and/or control plane signaling (e.g., RRC signaling), the scheduling information sent by the first wireless communication node is uplink scheduling information (e.g., uplink grant information) sent by the first wireless communication node to the UE, and the UE sends the uplink data to the first wireless communication node according to the uplink scheduling information.
The data information sent by the second wireless communication node is downlink data sent by the second wireless communication node to the UE, where the downlink data includes user plane data and/or control plane signaling (e.g., RRC signaling), the scheduling information sent by the second wireless communication node is uplink scheduling information (e.g., uplink grant information) sent by the second wireless communication node to the UE, and the UE sends the uplink data to the second wireless communication node according to the uplink scheduling information.
Before receiving downlink data, the UE receives control information, such as: receiving Physical Downlink Control Channel (PDCCH) information, and determining time-frequency resources, modulation coding modes and the like of data information according to the Control information of the PDCCH; before sending uplink data, the UE receives scheduling information, such as: and determining the time-frequency resource, the modulation coding mode and the like for sending the uplink data according to the scheduling information by using the uplink authorization information on the PDCCH.
Step 202, according to the information types of the first information and the second information, transmitting third information only to the first wireless communication node or only to the second wireless communication node in the subframe M after the subframe N.
According to the information types of the first information and the second information, the subframe M after the subframe N only sends information to one wireless communication node, namely the subframe M after the subframe N only sends third information to the first wireless communication node or the second wireless communication node; and when the first information is data information, the third information is HARQ feedback information of the data information sent by the first wireless communication node, and when the first information is scheduling information sent by the first wireless communication node, the third information is data to be sent. And when the second information is data information, the third information is HARQ feedback information of the data information sent by the second wireless communication node, and when the second information is scheduling information sent by the second wireless communication node, the third information is data to be sent.
Optionally, the sending, according to the information types of the first information and the second information, the third information only to the first wireless communication node or only to the second wireless communication node in the subframe M after the subframe N includes:
and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the wireless communication node to which the primary cell Pcell belongs.
Specifically, the UE receives, at a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, and sends, at a subframe M subsequent to the subframe N, third information to a wireless communication node to which a Primary Cell (Pcell) belongs according to information types of the first information and the second information, and does not send the third information to a wireless communication node to which a Secondary Cell (Scell) belongs. The cell in which the UE performs initial connection establishment or initiates a connection reestablishment procedure is referred to as Pcell. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, the UE receives first information transmitted by the first wireless communication node and second information transmitted by the second wireless communication node in a subframe N, and transmits third information to the first wireless communication node to which the Pcell belongs in a subframe M after the subframe N according to information types of the first information and the second information, but does not transmit the third information to the second wireless communication node. Or the UE sends the third information to the first wireless communication node to which the cell transmitting the RRC signaling belongs in the subframe M after the subframe N, and does not send the third information to the second wireless communication node.
Optionally, before the step of receiving, in subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node, the method further includes:
receiving a configuration message sent by the first wireless communication node, wherein the configuration message carries identification information of the wireless communication node, and the identification information is used for indicating the first wireless communication node or the second wireless communication node;
the sending, according to the information types of the first information and the second information, third information to only the first wireless communication node or only the second wireless communication node in a subframe M after the subframe N includes:
and according to the information types of the first information and the second information, the subframe M after the subframe N only sends the third information to the wireless communication node corresponding to the identification information.
Specifically, after accessing a network, the UE receives a configuration message sent by a first wireless communication node, where the configuration message carries identification information of the wireless communication node, and the identification information is used to indicate the first wireless communication node or a second wireless communication node;
and the UE receives first information sent by a first wireless communication node and second information sent by a second wireless communication node in a subframe N, and sends third information to the wireless communication node corresponding to the identification information in a subframe M after the subframe N according to the information types of the first information and the second information. If the configuration message carries the identification information of the first wireless communication node, the UE sends third information to the first wireless communication node in a subframe M after the subframe N; and if the configuration message carries the identification information of the second wireless communication node, the UE sends third information to the second wireless communication node in a subframe M after the subframe N.
Specifically, a first wireless communication node carries wireless communication node identification information in a Radio Resource Control (RRC) connection reconfiguration message, where the identification information is used to indicate a UE, and when the UE receives, in a subframe N, first information sent by the first wireless communication node and second information sent by a second wireless communication node, the UE sends, in the subframe M, third information to a wireless communication node corresponding to the identification information. Namely: when the UE receives first information sent by the first wireless communication node and second information sent by the second wireless communication node in a subframe N, if the configuration information carries the identification information of the first wireless communication node, the UE sends third information to the first wireless communication node in a subframe M; and if the configuration message carries the identification information of the second wireless communication node, the UE sends third information to the first wireless communication node in the subframe M.
The identification information may be:
physical Cell Identity (PCI), E-UTRAN Cell Global identity (ECGI), or other identification information for the UE to identify the wireless communication node.
Optionally, the sending, according to the information types of the first information and the second information, the third information only to the first wireless communication node or only to the second wireless communication node in the subframe M after the subframe N includes:
transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and subframe M;
transmitting the third information to the first wireless communication node or the second wireless communication node that did not transmit a collision indication at the subframe M;
wherein the collision indication is used to notify the first wireless communication node that third information is not to be transmitted to the first wireless communication node in subframe M, or the collision indication is used to notify the second wireless communication node that third information is not to be transmitted to the second wireless communication node in subframe M.
Specifically, the UE receives, at a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, and before a subframe M sends third information to the first wireless communication node, the UE sends a collision indication to the second wireless communication node at a certain subframe between the subframe N and the subframe M; wherein the collision indication is used to inform a second wireless communication node that the UE is not transmitting third information to the second wireless communication node in subframe M. And the UE sends third information to the first wireless communication node in a subframe M after the subframe N according to the information types of the first information and the second information.
In another case, the UE receives, in a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, and before sending, in a subframe M, third information to the second wireless communication node, the UE sends a collision indication to the first wireless communication node in a subframe between the subframe N and the subframe M; wherein the collision indication is used to inform the first wireless communication node that the UE is not transmitting third information to the first wireless communication node in subframe M. And the UE sends third information to a second wireless communication node in a subframe M after the subframe N according to the information types of the first information and the second information.
The UE may send the collision indication on a Physical Uplink Control Channel (PUCCH).
Optionally, the sending, by the subframe between the subframe N and the subframe M, a collision indication to the first wireless communication node or the second wireless communication node includes:
randomly transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and the subframe M, wherein the collision indication is used for informing the second wireless communication node that the UE does not transmit third information to the second wireless communication node in the subframe M.
In particular, the UE may randomly transmit a collision indication to the first wireless communication node or the second wireless communication node.
Optionally, the sending, by the subframe between the subframe N and the subframe M, a collision indication to the first wireless communication node or the second wireless communication node includes:
and sending a conflict indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M.
Specifically, the UE sends a collision indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, and the UE receives first information sent by the first wireless communication node and second information sent by the second wireless communication node in subframe N; the UE sends a conflict indication to a wireless communication node to which the Scell belongs in a subframe between the subframe N and the subframe M, wherein the conflict indication is used for informing a second wireless communication node, and the UE does not send third information to the second wireless communication node in the subframe M; and the UE sends third information to the first wireless communication node to which the Pcell belongs in the subframe M after the subframe N according to the information types of the first information and the second information, and does not send the third information to the second wireless communication node to which the Scell belongs.
Optionally, the sending, by the subframe between the subframe N and the subframe M, a collision indication to the first wireless communication node or the second wireless communication node includes:
and according to the received configuration message sent by the first wireless communication node, sending a conflict indication to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M.
Specifically, the UE may send a collision indication to the wireless communication node indicated by the identifier that is not included in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node. For example, the configuration message received by the UE carries identification information of a first wireless communication node, and when the UE receives, in a subframe N, first information sent by the first wireless communication node and second information sent by a second wireless communication node, in a subframe between the subframe N and a subframe M, the UE sends a collision indication to the second wireless communication node, where the collision indication is used to notify the second wireless communication node, and the UE does not send third information to the second wireless communication node in the subframe M; and the UE sends third information to the first wireless communication node in the subframe M after the subframe N according to the information types of the first information and the second information, and does not send the third information to the second wireless communication node.
Assuming that the subframe M is a fourth subframe after the subframe N, when the UE receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the UE sends a collision indication to the second wireless communication node in one of a first subframe or a second subframe or a third subframe after the subframe N.
As another embodiment, the method further comprises:
if a subframe cannot be found between the subframe N and the subframe M to send a collision indication to the second wireless communication node before the subframe M sends the third message to the first wireless communication node, only sending the third message to the first wireless communication node in the subframe M; or,
and if a subframe cannot be found between the subframe N and the subframe M to send a collision indication to the first-line communication node before the subframe M sends the third message to the second wireless communication node, only sending the third message to the second wireless communication node in the subframe M.
If the UE cannot find a subframe (a subframe between the subframe N and the subframe M) to send the conflict indication to the second wireless communication node before the subframe M sends the third information to the first wireless communication node, the UE does not send the conflict indication to the second wireless communication node; the UE transmits the third information only to the first wireless communication node in subframe M.
And for the configuration message received by the UE carrying the identification information of the first wireless communication node, if the UE cannot find a subframe between the subframe N and the subframe M to send a collision indication to the first line communication node before the subframe M sends the third message to the second wireless communication node, the UE only sends the third message to the second wireless communication node in the subframe M.
The embodiment of the invention provides a transmission method, which is characterized in that a first message sent by a first wireless communication node and a second message sent by a second wireless communication node are received in a subframe N, the first message is a data message or a scheduling message, the second message is a data message or a scheduling message, and the first wireless communication node and the second wireless communication node are service nodes of User Equipment (UE); and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the first wireless communication node or only to the second wireless communication node, so that the problem that the user equipment cannot send the third information corresponding to the information to one service node after receiving the information of the two service nodes at the same time is solved.
Referring to fig. 3, fig. 3 is a flowchart of a method for transmitting according to an embodiment of the present invention. As shown in fig. 3, the method comprises the steps of:
step 301, receiving, at a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, where the first information is data information or scheduling information, and the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of a user equipment UE;
optionally, the receiving, at the subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node includes:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
Step 302, according to the information types of the first information and the second information, in different subframes after the subframe N, respectively sending third information to the first wireless communication node and fourth information to the second wireless communication node.
Specifically, according to the information types of the first information and the second information, in different subframes after the subframe N, third information is sent to the first wireless communication node and fourth information is sent to the second wireless communication node, that is, in a subframe M after the subframe N, the third information is sent to the first wireless communication node, and in a certain subframe after the subframe M, the fourth information is sent to the second wireless communication node. And when the first information is data information, the third information is HARQ feedback information of the data information sent by the first wireless communication node, and when the first information is scheduling information sent by the first wireless communication node, the third information is data to be sent. And when the second information is data information, the fourth information is HARQ feedback information of the data information sent by the second wireless communication node, and when the second information is scheduling information sent by the second wireless communication node, the fourth information is data to be sent.
Optionally, the sending, according to the information types of the first information and the second information, third information to the first wireless communication node and fourth information to the second wireless communication node in different subframes after the subframe N respectively includes:
before a subframe M sends third information to a first wireless communication node, sending a collision indication to a second wireless communication node in a certain subframe between the subframe N and the subframe M; sending third information to a first wireless communication node in a subframe M, and sending fourth information to a second wireless communication node in a subframe after the subframe M;
or before the subframe M sends the fourth information to the second wireless communication node, sending a collision indication to the first wireless communication node in a certain subframe between the subframe N and the subframe M; and sending fourth information to the second wireless communication node in a subframe M, and sending the third information to the first wireless communication node in a subframe after the subframe M.
As shown in fig. 4, the first wireless communication node and the second wireless communication node transmit the first information and the second information to the user equipment UE at the same time in the subframe N, the user equipment transmits the collision indication to the second wireless communication node in any one of the subframes N and M, transmits the third information to the first wireless communication node in the subframe M, and transmits the fourth information to the second wireless communication node in the subframe S after the subframe M.
The UE may send a collision indication on a Physical Uplink Control Channel (PUCCH), and the collision indication may carry the following information:
and carrying subframe information (such as a subframe number) for notifying the second wireless communication node, wherein the UE sends fourth information to the second wireless communication node in a subframe corresponding to the subframe number.
Or, the UE carries time window information for notifying the second wireless communication node of fourth information that the UE transmits to the second wireless communication in a certain subframe within the time window after the subframe M.
Or after the second wireless communication node knows the conflict indication, the time frequency resource information for receiving the fourth information is calculated according to the sending time frequency resource information of the conflict indication.
Optionally, the sending, to the first wireless communication node or the second wireless communication node, a collision indication in a certain subframe between the subframe N and the subframe M includes:
and randomly sending a collision indication to the first wireless communication node or the second wireless communication node, or sending a collision indication to a wireless communication node to which the Scell belongs in a subframe between the subframe N and the subframe M, or sending a collision indication to a wireless communication node indicated by the identifier which is not included in the configuration message in a subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
Optionally, the UE may randomly send a collision indication to the first wireless communication node or the second wireless communication node.
Optionally, the UE sends a collision indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, and the UE receives first information sent by the first wireless communication node and second information sent by the second wireless communication node in subframe N; the UE sends a conflict indication to a wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M; and the UE sends third information to a first wireless communication node to which the Pcell belongs in a subframe M after the subframe N according to the information types of the first information and the second information, and sends fourth information to a second wireless communication node to which the Scell belongs in a certain subframe after the subframe M.
Optionally, the UE may send, according to the received configuration message sent by the first wireless communication node, a collision indication to the wireless communication node indicated by the identifier that is not included in the configuration message in the subframe between the subframe N and the subframe M. For example, the configuration message received by the UE carries identification information of the first wireless communication node, and when the UE receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the UE sends a collision indication to the second wireless communication node in a subframe between the subframe N and the subframe M; and the UE sends third information to the first wireless communication node in a subframe M after the subframe N according to the information types of the first information and the second information, and sends fourth information to the second wireless communication node in a certain subframe after the subframe M.
Assuming that the subframe M is a fourth subframe after the subframe N, when the UE receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the UE sends a collision indication to the second wireless communication node in one of a first subframe or a second subframe or a third subframe after the subframe N.
As an alternative embodiment, the method further comprises:
when the UE cannot find a subframe between the subframe N and the subframe M to send a collision indication to the second wireless communication node before the subframe M sends the third information to the first wireless communication node, the UE does not send the collision indication to the second wireless communication node, and only sends the third information to the first wireless communication node in the subframe M;
or, when the UE cannot find a subframe between the subframe N and the subframe M to send the collision indication to the first wireless communication node before the subframe M sends the fourth information to the second wireless communication node, the UE does not send the collision indication to the first wireless communication node, and only sends the fourth information to the second wireless communication node in the subframe M.
Optionally, before the step of receiving, at subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node, the method further includes:
receiving an asynchronous feedback mode configured for the UE by the first wireless communication node;
the sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
before a subframe M sends third information to a first wireless communication node, sending an asynchronous feedback mode switching indication to a second wireless communication node in a certain subframe between the subframe N and the subframe M; in a subframe M, UE sends third information to a first wireless communication node, and sends fourth information to a second wireless communication node in a certain subframe after the subframe M, wherein the asynchronous feedback mode switching indication is used for informing the second wireless communication node, and the UE sends the fourth information to the second wireless communication node in a certain subframe in a time window after the subframe M;
or before the subframe M sends fourth information to the second wireless communication node, the UE sends an asynchronous feedback mode switching indication to the first wireless communication node in a certain subframe between the subframe N and the subframe M; and in a subframe M, the UE sends fourth information to the second wireless communication node, and sends third information to the first wireless communication node in a subframe after the subframe M, wherein the asynchronous feedback mode switching indication is used for informing the first wireless communication node, and the UE sends the third information to the first wireless communication node in a subframe in a time window after the subframe M.
Specifically, the UE receives an asynchronous feedback mode configured for the UE by a first wireless communication node; the UE receives first information sent by a first wireless communication node and second information sent by a second wireless communication node in a subframe N; before a subframe M sends third information to a first wireless communication node, UE sends an asynchronous feedback mode switching instruction to a second wireless communication node in a certain subframe between the subframe N and the subframe M; and in a subframe M, the UE sends third information to the first wireless communication node, and sends fourth information to the second wireless communication node in a subframe after the subframe M.
The asynchronous feedback mode switching indication is used for notifying the second wireless communication node that the UE sends fourth information to the second wireless communication node in a subframe within a time window after the subframe M.
When the UE establishes connection or bearer, the first wireless communication node configures an asynchronous feedback mode for the UE through signaling. The asynchronous feedback mode carries time window information, and is used for notifying the UE of fourth information sent to the second wireless communication in a certain subframe within a time window after the subframe M.
The UE may send the asynchronous feedback mode switching indication on a Physical Uplink Control Channel (PUCCH).
Optionally, sending an asynchronous feedback mode switching indication to the first wireless communication node or the second wireless communication node in a certain subframe between the subframe N and the subframe M, where the asynchronous feedback mode switching indication includes:
and randomly selecting to send an asynchronous feedback switching instruction to the first wireless communication node or the second wireless communication node, or sending an asynchronous feedback mode switching instruction to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M, or sending an asynchronous feedback mode switching instruction to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
Optionally, the UE may randomly select the first wireless communication node or the second wireless communication node to send the asynchronous feedback mode switching indication.
Optionally, the UE sends an asynchronous feedback mode switching indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, and the UE receives first information sent by the first wireless communication node and second information sent by the second wireless communication node in subframe N; the UE sends an asynchronous feedback mode switching indication to a wireless communication node to which the Scell belongs in a subframe between the subframe N and the subframe M; and the UE sends third information to a first wireless communication node to which the Pcell belongs in a subframe M after the subframe N according to the information types of the first information and the second information, and sends fourth information to a second wireless communication node to which the Scell belongs in a certain subframe after the subframe M.
Optionally, the UE may send the asynchronous feedback mode switching indication to the wireless communication node indicated by the identifier that is not included in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node. For example, the configuration message received by the UE carries identification information of the first wireless communication node, and when the UE receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the UE sends an asynchronous feedback mode switching indication to the second wireless communication node in a subframe between the subframe N and the subframe M; and the UE sends third information to the first wireless communication node in a subframe M after the subframe N according to the information types of the first information and the second information, and sends fourth information to the second wireless communication node in a certain subframe after the subframe M.
Assuming that the subframe M is a fourth subframe after the subframe N, when the UE receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the UE sends an asynchronous feedback mode switching indication to the second wireless communication node in one of a first subframe or a second subframe or a third subframe after the subframe N. If the time window is 5, it indicates that the UE may send the fourth information to the second wireless communication node in any one subframe of M +1, M +2, M +3, M +4, and M + 5.
As an alternative embodiment, the method further comprises:
the method further comprises the following steps:
when the UE cannot find a subframe between the subframe N and the subframe M to send the asynchronous feedback mode indication to the second wireless communication node before the subframe M sends the third information to the first wireless communication node, the UE does not send the asynchronous feedback mode indication to the second wireless communication node, and only sends the third information to the first wireless communication node in the subframe M;
or, when the UE cannot find a subframe between the subframe N and the subframe M to send the asynchronous feedback mode indication to the first wireless communication node before the subframe M sends the fourth information to the second wireless communication node, the UE does not send the asynchronous feedback mode indication to the first wireless communication node, and only sends the third information to the first wireless communication node in the subframe M.
Optionally, before the step of receiving, at subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node, the method further includes:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode;
as shown in fig. 5, before subframe N, the UE receives a feedback pattern configured for the UE by the first wireless communication node, where the feedback pattern includes: the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode, the first information and the second information sent by the first wireless communication node and the second wireless communication node are received in a subframe N, the third information is sent to the first wireless communication node in a subframe M, and the fourth information is sent to the second wireless communication node in a subframe S.
The sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
according to the synchronous feedback mode, the UE sends third information to the first wireless communication node in the subframe M; and according to the asynchronous feedback mode, the UE sends fourth information to the second wireless communication node in a certain subframe in a time window after the subframe M.
Specifically, when the UE establishes a connection or a bearer, the first wireless communication node configures a feedback mode for the UE through signaling. And when the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode.
The UE receives first information sent by a first wireless communication node and second information sent by a second wireless communication node in a subframe N; and the UE sends third information to the first wireless communication node in a subframe M according to a synchronous feedback mode, and sends fourth information to the second wireless communication node in a subframe in a time window after the subframe M according to an asynchronous feedback mode.
Alternatively, before the step of receiving the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the method further includes:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is an asynchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is a synchronous feedback mode;
the sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
according to the synchronous feedback mode, the UE sends fourth information to the second wireless communication node in the subframe M; and according to the asynchronous feedback mode, the UE sends third information to the first wireless communication node in a certain subframe in a time window after the subframe M.
The embodiment of the invention provides a transmission method, which is characterized in that a first message sent by a first wireless communication node and a second message sent by a second wireless communication node are received in a subframe N, the first message is a data message or a scheduling message, the second message is a data message or a scheduling message, and the first wireless communication node and the second wireless communication node are service nodes of User Equipment (UE); and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the first wireless communication node or only to the second wireless communication node, so that the problem that the user equipment cannot send the third information corresponding to the information to one service node after receiving the information of the two service nodes at the same time is solved.
Referring to fig. 6, fig. 6 is a flowchart of a method for transmitting according to an embodiment of the present invention. As shown in fig. 6, the method comprises the steps of:
step 601, when the wireless communication node is a first wireless communication node, transmitting first information to the UE, and when the wireless communication node is a second wireless communication node, transmitting second information to the UE;
step 602, when the wireless communication node is a first wireless communication node, configured to receive third information sent by the UE to the first wireless communication node according to the information types of the first information and the second information, and when the wireless communication node is a second wireless communication node, configured to receive fourth information sent by the UE to the second wireless communication node according to the information types of the first information and the second information.
Optionally, before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a first configuration message to the UE, wherein the first configuration message carries an identifier of the first wireless communication node or an identifier of the second wireless communication node, and the identifier is used for indicating the UE to send third information to the first wireless communication node or the second wireless communication node corresponding to the identifier.
Optionally, before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a second configuration message to the UE, wherein the second configuration message carries the asynchronous feedback mode configured for the UE by the first wireless communication node.
Optionally, before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a third configuration message to the UE, wherein the third configuration message carries a synchronous feedback mode or an asynchronous feedback mode configured for the first wireless communication node by the first wireless communication node.
The invention provides a transmission method, in the method, a first message sent by a first wireless communication node and a second message sent by a second wireless communication node are received in a subframe N, the first message is a data message or a scheduling message, the second message is a data message or a scheduling message, and the first wireless communication node and the second wireless communication node are service nodes of User Equipment (UE); and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the first wireless communication node or only to the second wireless communication node, so that the problem that the user equipment cannot send the third information corresponding to the information to one service node after receiving the information of the two service nodes at the same time is solved.
Referring to fig. 7, fig. 7 is a schematic diagram of a transmission method according to an embodiment of the present invention. As shown in fig. 7, the UE receives data transmitted by the first wireless communication node and data transmitted by the second wireless communication node in a subframe N;
the wireless communication node to which the primary cell belongs is a first wireless communication node, and the wireless communication node to which the secondary cell belongs is a second wireless communication node. In subframe M, the ue only sends HARQ feedback information to the primary cell, and does not send HARQ feedback information to the secondary cell.
And the first wireless communication node receives HARQ feedback information sent by the UE, and determines whether the data sent by the first wireless communication node is successfully received by the UE according to the content of the HARQ feedback information.
The second wireless communication node does not receive the HARQ feedback information sent by the UE, and the second wireless communication node may consider that the data information sent by the second wireless communication node is not successfully received by the UE. The second wireless communication node may retransmit the data to the UE according to the resource condition of the cell, or the second wireless communication node may not retransmit the data to the UE.
Referring to fig. 8, fig. 8 is a schematic diagram of a transmission method according to an embodiment of the present invention. As shown in fig. 8, the user equipment receives data transmitted by the first wireless communication node and data transmitted by the second wireless communication node in subframe N;
the user equipment sends a conflict indication to the second wireless communication node in a subframe between subframe N and subframe M, wherein the conflict indication is used for informing the second wireless communication node that the user equipment cannot send HARQ feedback information to the second wireless communication node in subframe M;
the user equipment sends HARQ feedback information to a first wireless communication node which does not send the conflict indication in a subframe M;
and sending HARQ feedback information to a second wireless communication node sending a collision indication in a subframe S after the subframe M.
The subframe S is obtained according to a collision indication, and the collision indication may carry the following information:
and carrying subframe information for informing the second wireless communication node of fourth information sent by the UE to the second wireless communication in a subframe corresponding to the subframe number.
Or, the UE carries time window information for notifying the second wireless communication node of fourth information that the UE transmits to the second wireless communication in a certain subframe within the time window after the subframe M.
Or after the second wireless communication node knows the conflict indication, the time frequency resource information for receiving the fourth information is calculated according to the sending time frequency resource information of the conflict indication.
And the first wireless communication node receives HARQ feedback information of the data information sent by the user equipment in a subframe M, and determines whether the data information sent by the first wireless communication node is successfully received by the user equipment according to the content of the HARQ feedback information.
And the second wireless communication node learns that the data transmitted by the second wireless communication node conflicts with the first wireless communication node according to the conflict indication transmitted by the UE. The second wireless communication node may retransmit data to the UE according to the resource condition of the cell, or the second wireless communication node may not retransmit data to the UE.
Referring to fig. 9, fig. 9 is a D2D application scenario provided by the present invention. The network in fig. 9 includes user equipment 901, user equipment 902, and user equipment 903. The user equipment 901, the user equipment 902 and the user equipment 903 communicate with each other, and the user equipment 901 receives services of the user equipment 902 and the user equipment 903 at the same time, that is, the user equipment 902 and the user equipment 903 are service nodes of the user equipment 901 at the same time. The previously described method of transmission is also applicable to the D2D application scenario shown in fig. 9.
Referring to fig. 10, fig. 10 is a device structure diagram of a user equipment according to an embodiment of the present invention, where the user equipment includes the following units:
a first receiving unit 1001, configured to receive, in a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, where the first information is data information or scheduling information, and the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of a user equipment UE;
optionally, the first receiving unit 1001 is specifically configured to:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
Specifically, the data information sent by the first wireless communication node is downlink data sent by the first wireless communication node to the UE, where the downlink data includes user plane data and/or control plane signaling (e.g., RRC signaling), the scheduling information sent by the first wireless communication node is uplink scheduling information (e.g., uplink grant information) sent by the first wireless communication node to the UE, and the UE sends the uplink data to the first wireless communication node according to the uplink scheduling information.
The data information sent by the second wireless communication node is downlink data sent by the second wireless communication node to the UE, where the downlink data includes user plane data and/or control plane signaling (e.g., RRC signaling), the scheduling information sent by the second wireless communication node is uplink scheduling information (e.g., uplink grant information) sent by the second wireless communication node to the UE, and the UE sends the uplink data to the second wireless communication node according to the uplink scheduling information.
Before receiving downlink data, the UE receives control information, such as: receiving Physical Downlink Control Channel (PDCCH) information, and determining time-frequency resources, modulation coding modes and the like of data information according to the Control information of the PDCCH; before sending uplink data, the UE receives scheduling information, such as: and determining the time-frequency resource, the modulation coding mode and the like for sending the uplink data according to the scheduling information by using the uplink authorization information on the PDCCH.
A first sending unit 1002, configured to send, according to information types of the first information and the second information, third information only to the first wireless communication node or only to the second wireless communication node in a subframe M after the subframe N.
According to the information types of the first information and the second information, the subframe M after the subframe N only sends information to one wireless communication node, namely the subframe M after the subframe N only sends third information to the first wireless communication node or the second wireless communication node; and when the first information is data information, the third information is HARQ feedback information of the data information sent by the first wireless communication node, and when the first information is scheduling information sent by the first wireless communication node, the third information is data to be sent. And when the second information is data information, the third information is HARQ feedback information of the data information sent by the second wireless communication node, and when the second information is scheduling information sent by the second wireless communication node, the third information is data to be sent.
Optionally, the first sending unit is specifically configured to:
and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the wireless communication node to which the primary cell Pcell belongs.
Specifically, the UE receives, at a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, and sends, at a subframe M subsequent to the subframe N, third information to a wireless communication node to which a Primary Cell (Pcell) belongs according to information types of the first information and the second information, and does not send the third information to a wireless communication node to which a Secondary Cell (Scell) belongs. The cell in which the UE performs initial connection establishment or initiates a connection reestablishment procedure is referred to as Pcell. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, the UE receives first information transmitted by the first wireless communication node and second information transmitted by the second wireless communication node in a subframe N, and transmits third information to the first wireless communication node to which the Pcell belongs in a subframe M after the subframe N according to information types of the first information and the second information, but does not transmit the third information to the second wireless communication node. Or the UE sends the third information to the first wireless communication node to which the cell transmitting the RRC signaling belongs in the subframe M after the subframe N, and does not send the third information to the second wireless communication node.
Optionally, the user equipment further includes: the second receiving unit 1003 is specifically configured to:
and receiving a configuration message sent by the first wireless communication node, wherein the configuration message carries identification information of the wireless communication node, and the identification information is used for indicating the first wireless communication node or the second wireless communication node.
Specifically, after the UE accesses the network, the second receiving unit 1003 receives a configuration message sent by the first wireless communication node, where the configuration message carries identification information of the wireless communication node, and the identification information is used to indicate the first wireless communication node or the second wireless communication node.
The first receiving unit 1001 receives, in a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, and in a subframe M after the subframe N, according to information types of the first information and the second information, and according to identification information of the wireless communication node in a configuration message received by the second receiving unit 1003, the first sending unit 1002 sends the third information to the wireless communication node corresponding to the identification information. If the configuration message carries identification information of the first wireless communication node, the first sending unit 1002 sends third information to the first wireless communication node in a subframe M after the subframe N; if the configuration message carries identification information of the second wireless communication node, the first sending unit 1002 sends third information to the second wireless communication node in a subframe M after the subframe N.
Specifically, a first wireless communication node carries wireless communication node identification information in a Radio Resource Control (RRC) connection reconfiguration message, where the identification information is used to indicate a UE, and when the UE receives, in a subframe N, first information sent by the first wireless communication node and second information sent by a second wireless communication node, the UE sends, in the subframe M, third information to a wireless communication node corresponding to the identification information. Namely: when the UE receives first information sent by the first wireless communication node and second information sent by the second wireless communication node in a subframe N, if the configuration information carries the identification information of the first wireless communication node, the UE sends third information to the first wireless communication node in a subframe M; and if the configuration message carries the identification information of the second wireless communication node, the UE sends third information to the first wireless communication node in the subframe M.
Optionally, the identification information is a physical cell identity PCI, an E-UTRAN cell global identity ECGI, or other identification information used for the UE to identify the wireless communication node.
Optionally, the user equipment further includes: the second sending unit 1004 is specifically configured to:
transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and subframe M.
Specifically, the first receiving unit 1001 receives first information transmitted by a first wireless communication node and second information transmitted by a second wireless communication node in a subframe N, and the first transmitting unit 1002 transmits a collision indication to the second wireless communication node in a subframe between the subframe N and the subframe M before transmitting third information to the first wireless communication node in the subframe M; wherein the collision indication is used to inform a second wireless communication node that the UE is not transmitting third information to the second wireless communication node in subframe M. The UE transmits third information to the first wireless communication node in a subframe M after the subframe N according to the information types of the first information and the second information.
In another case, the first receiving unit 1001 receives first information transmitted by a first wireless communication node and second information transmitted by a second wireless communication node in a subframe N, and the first transmitting unit 1002 transmits a collision indication to the first wireless communication node in a subframe between the subframe N and the subframe M before transmitting third information to the second wireless communication node in the subframe M; wherein the collision indication is used to inform the first wireless communication node that the UE is not transmitting third information to the first wireless communication node in subframe M. The UE transmits third information to the second wireless communication node in a subframe M after the subframe N according to the information types of the first information and the second information.
The collision indication may be sent on a Physical Uplink Control Channel (PUCCH).
Optionally, the performing, in the second sending unit 1004, sending a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and the subframe M includes:
and randomly sending a conflict indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and the subframe M, wherein the conflict indication is used for informing the second wireless communication node that the UE does not send third information to the second wireless communication node in the subframe M.
Specifically, the second transmitting unit 1004 may randomly transmit the collision indication to the first wireless communication node or the second wireless communication node.
Optionally, the performing, in the second sending unit 1004, sending a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and the subframe M includes:
and sending a conflict indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M.
Specifically, the second transmitting unit 1004 transmits a collision indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, and the first receiving unit 1001 receives, in the subframe N, first information transmitted by the first wireless communication node and second information transmitted by the second wireless communication node; a second sending unit 1004, configured to send a collision indication to a wireless communication node to which the Scell belongs in a subframe between the subframe N and the subframe M, where the collision indication is used to notify the second wireless communication node that the UE does not send third information to the second wireless communication node in the subframe M; and the UE sends third information to the first wireless communication node to which the Pcell belongs and does not send the third information to the second wireless communication node to which the Scell belongs in the subframe M after the subframe N according to the information types of the first information and the second information.
Optionally, the performing, by the second sending unit, sending a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and the subframe M includes:
in accordance with the configuration message sent by the first wireless communication node and received by the second receiving unit 1003, in the subframe between the subframe N and the subframe M, the second sending unit 1004 sends a collision indication to the wireless communication node indicated by the identifier not included in the configuration message.
Specifically, the UE may send, according to the configuration message sent by the first wireless communication node and received by the second receiving unit 1003, the second sending unit 1004, in the subframe between the subframe N and the subframe M, a collision indication to the wireless communication node indicated by the identifier that is not included in the configuration message. For example, the configuration message received by the second receiving unit 1003 carries identification information of the first wireless communication node, and when the first receiving unit 1001 receives, in the subframe N, the first information sent by the first wireless communication node and the second information sent by the second wireless communication node, in the subframe between the subframe N and the subframe M, the second transmitting unit 1004 transmits a collision indication to the second wireless communication node, where the collision indication is used to notify the second wireless communication node, and the UE does not send third information to the second wireless communication node in the subframe M; the UE sends the third information to the first wireless communication node and does not send the third information to the second wireless communication node in the subframe M after the subframe N according to the information types of the first information and the second information.
Assuming that the subframe M is the fourth subframe after the subframe N, when the first receiving unit 1001 receives the first information transmitted by the first wireless communication node and the second information transmitted by the second wireless communication node in the subframe N, the second transmitting unit 1004 transmits a collision indication to the second wireless communication node in one of the first subframe, the second subframe, and the third subframe after the subframe N.
Optionally, the user equipment further includes a first processing unit 1005, where the first processing unit is specifically configured to:
before the first sending unit 1002 sends the third message to the first wireless communication node in the subframe M, the first processing unit 1005 searches for a subframe for sending a collision indication to the second wireless communication node between the subframe N and the subframe M; if the first processing unit 1005 cannot find a subframe for transmitting the collision indication to the second wireless communication node between the subframe N and the subframe M, the first transmitting unit 1002 transmits the third information only to the first wireless communication node in the subframe M;
or,
before the first sending unit 1002 sends the third message to the second wireless communication node in the subframe M, the first processing unit 1005 searches for a subframe for sending a collision indication to the first wireless communication node between the subframe N and the subframe M; if the first processing unit 1005 cannot find a subframe between the subframe N and the subframe M to send the collision indication to the first wireless communication node, the first sending unit 1002 sends the third information to the second wireless communication node only in the subframe M.
The embodiment of the invention provides user equipment, wherein the user equipment receives first information sent by a first wireless communication node and second information sent by a second wireless communication node in a subframe N, the first information is data information or scheduling information, the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are service nodes of the user equipment UE; and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the first wireless communication node or only to the second wireless communication node, so that the problem that the user equipment cannot send the third information corresponding to the information to one service node after receiving the information of the two service nodes at the same time is solved.
Referring to fig. 11, fig. 11 is a device structure diagram of a user equipment according to an embodiment of the present invention, where the user equipment includes the following units:
a first receiving unit 1101, configured to receive, in a subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node, where the first information is data information or scheduling information, and the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of a user equipment UE;
optionally, the first receiving unit 1101 is specifically configured to:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
A first sending unit 1102, configured to send, according to information types of the first information and the second information, third information to the first wireless communication node and fourth information to the second wireless communication node in different subframes after the subframe N, respectively.
Specifically, according to the information types of the first information and the second information, in different subframes after the subframe N, third information is sent to the first wireless communication node and fourth information is sent to the second wireless communication node, that is, in a subframe M after the subframe N, the third information is sent to the first wireless communication node, and in a certain subframe after the subframe M, the fourth information is sent to the second wireless communication node. And when the first information is data information, the third information is HARQ feedback information of the data information sent by the first wireless communication node, and when the first information is scheduling information sent by the first wireless communication node, the third information is data to be sent. And when the second information is data information, the fourth information is HARQ feedback information of the data information sent by the second wireless communication node, and when the second information is scheduling information sent by the second wireless communication node, the fourth information is data to be sent.
Optionally, the user equipment further includes: the second sending unit 1103 is specifically configured to:
in subframe M, before the first sending unit 1102 sends the third information to the first wireless communication node, in a certain subframe between subframe N and subframe M, the second sending unit 1103 sends a collision indication to the second wireless communication node;
alternatively, in subframe M, before the first sending unit 1102 sends the fourth information to the second wireless communication node, the second sending unit 1103 sends a collision indication to the first wireless communication node in a certain subframe between subframe N and subframe M.
The second sending unit 1103 may send a collision indication on a Physical Uplink Control Channel (PUCCH), and the collision indication may carry the following information:
and fourth information, which carries subframe information and is used for notifying the second wireless communication node, and is sent to the second wireless communication node by the first sending unit 1102 in a subframe corresponding to the subframe number.
Or, the time window information is carried, and is used to notify the second wireless communication node of fourth information that the first sending unit 1102 sends to the second wireless communication node in a certain subframe within the time window after the subframe M.
Or after the second wireless communication node knows the conflict indication, the time frequency resource information for receiving the fourth information is calculated according to the sending time frequency resource information of the conflict indication.
Optionally, the second sending unit 1103 is further configured to:
and randomly sending a collision indication to the first wireless communication node or the second wireless communication node, or sending the collision indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M, or sending the collision indication to the wireless communication node which is not indicated by the identifier contained in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
Alternatively, the second sending unit 1103 may randomly send a collision indication to the first wireless communication node or the second wireless communication node.
Optionally, the second sending unit 1103 sends a collision indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, and the first receiving unit 1101 receives first information transmitted by the first wireless communication node and second information transmitted by the second wireless communication node in subframe N; a second sending unit 1103 sends a collision indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M; the first sending unit 1102 sends, according to the information types of the first information and the second information, third information to the first wireless communication node to which the Pcell belongs in a subframe M after the subframe N, and fourth information to the second wireless communication node to which the Scell belongs in a subframe after the subframe M.
Optionally, the second sending unit 1103 may send, according to the received configuration message sent by the first wireless communication node, a collision indication to the wireless communication node indicated by the identifier that is not included in the configuration message in the subframe between the subframe N and the subframe M. For example, the configuration message received by the first receiving unit 1101 carries identification information of the first wireless communication node, and when the first receiving unit 1101 receives first information sent by the first wireless communication node and second information sent by the second wireless communication node in a subframe N, the second sending unit 1103 sends a collision indication to the second wireless communication node in a subframe between the subframe N and the subframe M; the first transmitting unit 1102 transmits third information to the first wireless communication node in a subframe M after the subframe N and transmits fourth information to the second wireless communication node in a subframe after the subframe M according to the information types of the first information and the second information.
Assuming that the subframe M is the fourth subframe after the subframe N, when the first receiving unit 1101 receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the second sending unit 1103 sends a collision indication to the second wireless communication node in one subframe of the first subframe, the second subframe, or the third subframe after the subframe N.
Optionally, the user equipment further includes a first processing unit 1104, where the first processing unit 1104 is specifically configured to:
before the first sending unit 1102 sends the third message to the first wireless communication node in the subframe M, the first processing unit 1104 searches a subframe for sending a collision indication to the second wireless communication node between the subframe N and the subframe M;
if the first processing unit 1104 cannot find a subframe for sending the collision indication to the second wireless communication node between the subframe N and the subframe M, the second sending unit 1103 does not send the collision indication to the second wireless communication node, and in the subframe M, the first sending unit 1102 only sends the third information to the first wireless communication node;
or,
before the first sending unit 1102 sends the fourth message to the second wireless communication node in the subframe M, the first processing unit 1104 searches a subframe for sending a collision indication to the first wireless communication node between the subframe N and the subframe M; if the first processing unit 1104 cannot find a subframe for sending the collision indication to the first wireless communication node between the subframe N and the subframe M, the second sending unit 1103 does not send the collision indication to the first wireless communication node, and in the subframe M, the first sending unit 1102 only sends the fourth information to the second wireless communication node.
Optionally, the user equipment further includes a second receiving unit 1105, where the second receiving unit 1105 is specifically configured to:
and receiving the asynchronous feedback mode configured for the UE by the first wireless communication node.
The user equipment further includes a third sending unit 1106, and the third sending unit 1106 is specifically configured to:
before a subframe M sends third information to a first wireless communication node, a first sending unit 1102 sends an asynchronous feedback mode switching instruction to the second wireless communication node in a subframe between the subframe N and the subframe M, where the asynchronous feedback mode switching instruction is used to notify the second wireless communication node, and the first sending unit 1102 sends fourth information to the second wireless communication node in a subframe within a time window after the subframe M;
or before the subframe M sends the fourth information to the second wireless communication node, the first sending unit 1102 sends an asynchronous feedback mode switching instruction to the first wireless communication node in a subframe between the subframe N and the subframe M, where the asynchronous feedback mode switching instruction is used to notify the first wireless communication node, and the first sending unit 1102 sends the third information to the first wireless communication node in a subframe within a time window after the subframe M.
Specifically, the second receiving unit 1105 receives an asynchronous feedback mode configured for the UE by the first wireless communication node; the first receiving unit 1101 receives first information transmitted by a first wireless communication node and second information transmitted by a second wireless communication node in a subframe N; before the subframe M sends the third information to the first wireless communication node, the first sending unit 1102 sends an asynchronous feedback mode switching indication to the second wireless communication node in a certain subframe between the subframe N and the subframe M; in the subframe M, the first transmitting unit 1102 transmits the third information to the first wireless communication node, and in any subframe after the subframe M, the first transmitting unit 1102 transmits the fourth information to the second wireless communication node.
The asynchronous feedback mode switching indication is used for informing the second wireless communication node that the UE sends fourth information to the second wireless communication node in a subframe within a time window after the subframe M.
When the UE establishes connection or bearer, the first wireless communication node configures an asynchronous feedback mode for the UE through signaling. The asynchronous feedback mode carries time window information, and is used for the UE to send fourth information to the second wireless communication in a certain subframe of the time window after the subframe M.
The UE may send the asynchronous feedback mode switching indication on a Physical Uplink Control Channel (PUCCH).
Optionally, the third sending unit 1106 is further configured to:
and randomly selecting to send an asynchronous feedback switching instruction to the first wireless communication node or the second wireless communication node, or sending an asynchronous feedback mode switching instruction to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M, or sending an asynchronous feedback mode switching instruction to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
Optionally, the third sending unit 1106 may randomly select the first wireless communication node or the second wireless communication node to send the asynchronous feedback mode switching indication.
Optionally, the third sending unit 1106 sends an asynchronous feedback mode switching indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M. For example, the wireless communication node to which the Pcell belongs is a first wireless communication node, the wireless communication node to which the Scell belongs is a second wireless communication node, and the first receiving unit 1101 receives first information transmitted by the first wireless communication node and second information transmitted by the second wireless communication node in subframe N; the third transmitting unit 1106 transmits a feedback mode switching indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M; the first sending unit 1102 is configured to send, according to the information types of the first information and the second information, third information to the first wireless communication node to which the Pcell belongs in a subframe M after the subframe N, and send fourth information to the second wireless communication node to which the Scell belongs in a subframe after the subframe M.
Optionally, the third sending unit 1106 may send, according to the configuration message sent by the first wireless communication node and received by the second receiving unit 1105, an asynchronous feedback mode switching indication to the wireless communication node indicated by the identifier that is not included in the configuration message in the subframe between the subframe N and the subframe M. For example, the configuration message received by the second receiving unit 1105 carries identification information of the first wireless communication node, and when the first receiving unit 1101 receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the third sending unit 1106 sends a feedback mode switching indication to the second wireless communication node in a subframe between the subframe N and the subframe M; the first sending unit 1102 is configured to send, to the first wireless communication node, third information in a subframe M after the subframe N according to information types of the first information and the second information, and send, to the second wireless communication node, fourth information in a subframe after the subframe M.
Assuming that the subframe M is the fourth subframe after the subframe N, when the first receiving unit 1101 receives the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the third sending unit 1106 sends the asynchronous feedback mode switching indication to the second wireless communication node in one of the first subframe or the second subframe or the third subframe after the subframe N. If the time window is 5, it indicates that the third transmitting unit 1106 may transmit the fourth information to the second wireless communication node in any one subframe of M +1, M +2, M +3, M +4, and M + 5.
Optionally, the user equipment further includes a second processing unit 1107, where the second processing unit 1107 is specifically configured to:
before the first sending unit 1102 sends the third message to the first wireless communication node in the subframe M, the second processing unit 1107 searches a subframe between the subframe N and the subframe M for sending an asynchronous feedback mode switching indication to the second wireless communication node;
if the second processing unit 1107 cannot find a subframe for sending the asynchronous feedback mode switching indication to the second wireless communication node between the subframe N and the subframe M, the first sending unit 1102 only sends the third information to the first wireless communication node in the subframe M;
or, before the first sending unit 1102 sends the third message to the second wireless communication node in the subframe M, the second processing unit 1107 searches for a subframe between the subframe N and the subframe M to send the asynchronous feedback mode switching instruction to the first wireless communication node; if the second processing unit 1107 cannot send the asynchronous feedback mode switching instruction to the first wireless communication node in a subframe found between the subframe N and the subframe M, the first sending unit 1102 sends the third information to the second wireless communication node only in the subframe M.
Optionally, the second receiving unit 1105 is further configured to:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode; alternatively, the feedback mode includes: the feedback mode of the second wireless communication node and the UE is a synchronous feedback mode, and the feedback mode of the first wireless communication node and the UE is an asynchronous feedback mode.
Specifically, when the UE establishes a connection or a bearer, the first wireless communication node configures a feedback mode for the UE through signaling. And when the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode.
The first receiving unit 1101 receives first information transmitted by a first wireless communication node and second information transmitted by a second wireless communication node in a subframe N; the first sending unit 1102 sends the third information to the first wireless communication node in the subframe M according to the synchronous feedback mode, and sends the fourth information to the second wireless communication node in a certain subframe within a time window after the subframe M according to the asynchronous feedback mode.
For receiving a feedback pattern configured for the UE by the first wireless communication node, the feedback pattern comprising: the feedback mode between the first wireless communication node and the UE is an asynchronous feedback mode, and the feedback mode between the second wireless communication node and the UE is a synchronous feedback mode.
The embodiment of the invention provides user equipment, wherein the user equipment receives first information sent by a first wireless communication node and second information sent by a second wireless communication node in a subframe N, the first information is data information or scheduling information, the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are service nodes of the user equipment UE; and according to the information types of the first information and the second information, the subframe M after the subframe N only sends third information to the first wireless communication node or only to the second wireless communication node, so that the problem that the user equipment cannot send the third information corresponding to the information to one service node after receiving the information of the two service nodes at the same time is solved.
Referring to fig. 12, fig. 12 is a block diagram of an apparatus of a wireless communication node according to an embodiment of the present invention. As shown in fig. 12, the wireless communication node includes the following units:
a first sending unit 1201, configured to send first information to the UE when the wireless communication node is a first wireless communication node, and send second information to the UE when the wireless communication node is a second wireless communication node;
a first receiving unit 1202, configured to receive, when a wireless communication node is a first wireless communication node, third information sent by the UE to the first wireless communication node according to the information types of the first information and the second information, and, when the wireless communication node is a second wireless communication node, receive fourth information sent by the UE to the second wireless communication node according to the information types of the first information and the second information.
Optionally, the wireless communication node further includes:
a second sending unit 1203, configured to send a first configuration message to a UE, where the first configuration message carries an identifier of the first wireless communication node or an identifier of the second wireless communication node, and the identifier is used to instruct the UE to send third information to the first wireless communication node or the second wireless communication node corresponding to the identifier.
Optionally, the second sending unit 1203 is further configured to:
and sending a second configuration message to the UE, wherein the second configuration message carries the asynchronous feedback mode configured for the UE by the first wireless communication node.
Optionally, the second sending unit 1203 is further configured to:
and sending a third configuration message to the UE, wherein the third configuration message carries a synchronous feedback mode configured for the UE by the first wireless communication node, and the asynchronous feedback mode configured for the UE by the second wireless communication node. In another case, the third configuration message carries an asynchronous feedback mode configured by the first wireless communication node for the UE, and the second wireless communication node is a synchronous feedback mode configured by the UE.
The embodiment of the invention provides a wireless communication node, when the wireless communication node is a first wireless communication node, for transmitting first information to the UE, for transmitting second information to the UE, when the wireless communication node is a second wireless communication node, and for transmitting second information to the UE, when the wireless communication node is a first wireless communication node, for receiving third information sent by the UE to the first wireless communication node according to the information types of the first information and the second information, when the wireless communication node is a second wireless communication node, for receiving fourth information transmitted by the UE to the second wireless communication node according to the information types of the first information and the second information, therefore, the problem that the user equipment cannot send the third information corresponding to the information to one service node after receiving the information of the two service nodes at the same time is solved.
Referring to fig. 13, fig. 13 is a device structure diagram of a user equipment according to an embodiment of the present invention. Referring to fig. 13, fig. 13 is a user equipment 1300 according to an embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific implementation of the user equipment. The user equipment 1300 includes:
a processor (processor)1301, a communication Interface (Communications Interface)1302, a memory (memory)1303, and a bus 1304.
The processor 1301, the communication interface 1302 and the memory 1303 communicate with each other via the bus 1304.
A communication interface 1302 for communicating with a wireless communication node;
a processor 1301 for executing programs.
In particular, the program may include program code comprising computer operating instructions.
The processor 1301 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to implement embodiments of the present invention.
And a memory 1303 for storing programs. The memory 1303 may be a volatile memory (RAM) such as a random-access memory (RAM), or a non-volatile memory (non-volatile memory) such as a read-only memory (ROM), a flash memory (flash memory), a hard disk (HDD), or a solid-state drive (SSD). Processor 1301, according to program instructions stored in memory 1303, performs the following methods:
receiving first information sent by a first wireless communication node and second information sent by a second wireless communication node at a subframe N, wherein the first information is data information or scheduling information, the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of User Equipment (UE);
and according to the information types of the first information and the second information, sending third information only to the first wireless communication node or only to the second wireless communication node in a subframe M after the subframe N.
The receiving, at subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node includes:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
The sending, by the first wireless communication node or only to the second wireless communication node, third information in subframe M after the subframe N according to the information types of the first information and the second information includes:
and according to the information types of the first information and the second information, sending third information to the wireless communication node to which the primary cell Pcell belongs in a subframe M after the subframe N, and not sending the third information to the wireless communication node to which the secondary cell Scell belongs.
The method comprises before the step of receiving the first information transmitted by the first wireless communication node and the second information transmitted by the second wireless communication node in the subframe N, the method further comprises:
receiving a configuration message sent by the first wireless communication node, wherein the configuration message carries identification information of the wireless communication node, and the identification information is used for indicating the first wireless communication node or the second wireless communication node;
the sending, according to the information types of the first information and the second information, third information to only the first wireless communication node or only the second wireless communication node in a subframe M after the subframe N includes:
and according to the information types of the first information and the second information, sending the third information to the wireless communication node corresponding to the identification information in a subframe M after the subframe N.
The identification information is physical cell identification PCI, E-UTRAN cell global identification ECGI or other identification information used for UE to identify the wireless communication node.
The sending, according to the information types of the first information and the second information, third information to only the first wireless communication node or only the second wireless communication node in a subframe M after the subframe N includes:
transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and subframe M;
transmitting the third information to the first wireless communication node or the second wireless communication node that did not transmit a collision indication at the subframe M;
wherein the collision indication is used to notify the first wireless communication node that third information is not to be transmitted to the first wireless communication node in subframe M, or the collision indication is used to notify the second wireless communication node that third information is not to be transmitted to the second wireless communication node in subframe M.
The transmitting, to the first wireless communication node or the second wireless communication node, a collision indication in a subframe between subframe N and subframe M, comprising:
randomly transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and subframe M.
The transmitting, to the first wireless communication node or the second wireless communication node, a collision indication in a subframe between subframe N and subframe M, comprising:
and sending a conflict indication to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M.
The transmitting, to the first wireless communication node or the second wireless communication node, a collision indication in a subframe between subframe N and subframe M, comprising:
and according to the received configuration message sent by the first wireless communication node, sending a conflict indication to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M.
The processor 1301 is further configured to:
if a subframe cannot be found between the subframe N and the subframe M to send a collision indication to the second wireless communication node before the subframe M sends the third message to the first wireless communication node, only sending the third message to the first wireless communication node in the subframe M;
or, if a subframe cannot be found between the subframe N and the subframe M to send a collision indication to the first-line communication node before the subframe M sends the third message to the second wireless communication node, only sending the third message to the second wireless communication node in the subframe M.
Processor 1301 is also operative to perform the following operations in accordance with the program instructions stored in memory 1303:
receiving first information sent by a first wireless communication node and second information sent by a second wireless communication node at a subframe N, wherein the first information is data information or scheduling information, the second information is data information or scheduling information, and the first wireless communication node and the second wireless communication node are serving nodes of User Equipment (UE);
and according to the information types of the first information and the second information, respectively sending third information to the first wireless communication node and fourth information to the second wireless communication node in different subframes after the subframe N.
The receiving, at subframe N, first information sent by a first wireless communication node and second information sent by a second wireless communication node includes:
receiving data information sent by a first wireless communication node and data information sent by a second wireless communication node in a subframe N;
or receiving data information sent by the first wireless communication node and scheduling information sent by the second wireless communication node in a subframe N, or receiving the scheduling information sent by the first wireless communication node and the data information sent by the second wireless communication node in the subframe N;
or, receiving the scheduling information transmitted by the first wireless communication node and the scheduling information transmitted by the second wireless communication node in the subframe N.
The sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
before a subframe M sends third information to a first wireless communication node, sending a collision indication to a second wireless communication node in a certain subframe between the subframe N and the subframe M; sending third information to a first wireless communication node in a subframe M, and sending fourth information to a second wireless communication node in a subframe after the subframe M;
or before the subframe M sends the fourth information to the second wireless communication node, sending a collision indication to the first wireless communication node in a certain subframe between the subframe N and the subframe M; and sending fourth information to the second wireless communication node in a subframe M, and sending the third information to the first wireless communication node in a subframe after the subframe M.
The conflict indication may carry the following information:
and carrying subframe information for informing the second wireless communication node of fourth information sent by the UE to the second wireless communication in a subframe corresponding to the subframe number.
Or, the UE carries time window information for notifying the second wireless communication node of fourth information that the UE transmits to the second wireless communication in a certain subframe within the time window after the subframe M.
Or after the second wireless communication node knows the conflict indication, the time frequency resource information for receiving the fourth information is calculated according to the sending time frequency resource information of the conflict indication.
Transmitting a collision indication to the first wireless communication node or the second wireless communication node in a subframe between the subframe N and the subframe M, comprising:
randomly sending a collision indication to the first wireless communication node or the second wireless communication node, or sending a collision indication to a wireless communication node to which the Scell belongs in a subframe between the subframe N and the subframe M, or sending a collision indication to a wireless communication node indicated by the identifier which is not included in the configuration message in a subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node;
the processor 1301 is further configured to:
before the subframe M sends the third information to the first wireless communication node, the processor 1301 cannot find a subframe between the subframe N and the subframe M to send a collision indication to the second wireless communication node, so that the processor 1301 does not send the collision indication to the second wireless communication node, and in the subframe M, the processor 1301 only sends the third information to the first wireless communication node;
before the subframe M sends the fourth information to the second wireless communication node, the processor 1301 cannot find a subframe between the subframe N and the subframe M to send a collision indication to the first wireless communication node, so that the processor 1301 does not send the collision indication to the first wireless communication node, and in the subframe M, the processor 1301 only sends the fourth information to the second wireless communication node.
The processor 1301 is further configured to, before performing the step of receiving the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in subframe N:
receiving an asynchronous feedback mode configured for the UE by the first wireless communication node;
the processor 1301 is further configured to, in different subframes after the subframe N according to information types of the first information and the second information, respectively send third information to the first wireless communication node and fourth information to the second wireless communication node, and to:
before a subframe M sends third information to a first wireless communication node, sending an asynchronous feedback mode switching indication to a second wireless communication node in a certain subframe between the subframe N and the subframe M; in subframe M, the processor 1301 sends third information to the first wireless communication node, and sends fourth information to the second wireless communication node in a certain subframe after the subframe M, where the asynchronous feedback mode switching indication is used to notify the second wireless communication node, and the UE sends the fourth information to the second wireless communication node in a certain subframe within a time window after the subframe M;
or before the subframe M sends the fourth information to the second wireless communication node, sending an asynchronous feedback mode switching indication to the first wireless communication node in a certain subframe between the subframe N and the subframe M; in subframe M, the processor 1301 transmits fourth information to the second wireless communication node, transmits third information to the first wireless communication node in a certain subframe after the subframe M, and the asynchronous feedback mode switching indication is used to notify the first wireless communication node, and the UE transmits the third information to the first wireless communication node in a certain subframe within a time window after the subframe M.
Sending an asynchronous feedback mode switching indication to the first wireless communication node or a second wireless communication node in a subframe between subframe N and subframe M, comprising:
and randomly selecting to send an asynchronous feedback switching instruction to the first wireless communication node or the second wireless communication node, or sending an asynchronous feedback mode switching instruction to the wireless communication node to which the Scell belongs in the subframe between the subframe N and the subframe M, or sending an asynchronous feedback mode switching instruction to the wireless communication node indicated by the identifier which is not contained in the configuration message in the subframe between the subframe N and the subframe M according to the received configuration message sent by the first wireless communication node.
The processor 1301 is further configured to:
when a subframe cannot be found between the subframe N and the subframe M to send an asynchronous feedback mode indication to the second wireless communication node before the subframe M sends the third information to the first wireless communication node, the processor 1301 does not send the asynchronous feedback mode indication to the second wireless communication node, and only sends the third information to the first wireless communication node in the subframe M;
or, before the subframe M sends the fourth information to the second wireless communication node, a subframe cannot be found between the subframe N and the subframe M to send the asynchronous feedback mode indication to the first wireless communication node, the processor 1301 does not send the asynchronous feedback mode indication to the first wireless communication node, and only sends the third information to the first wireless communication node in the subframe M.
The processor 1301 further includes, before performing the step of receiving, at subframe N, first information transmitted by a first wireless communication node and second information transmitted by a second wireless communication node:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is a synchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is an asynchronous feedback mode;
the processor 1301 is further configured to, in different subframes after the subframe N according to information types of the first information and the second information, respectively send third information to the first wireless communication node and fourth information to the second wireless communication node, and to:
according to the synchronous feedback mode, the UE sends third information to the first wireless communication node in the subframe M; according to the asynchronous feedback mode, the UE sends fourth information to a second wireless communication node in a certain subframe in a time window after the subframe M;
alternatively, before the step of receiving the first information sent by the first wireless communication node and the second information sent by the second wireless communication node in the subframe N, the method further includes:
receiving a feedback mode configured for the UE by the first wireless communication node, wherein the feedback mode comprises: the feedback mode of the first wireless communication node and the UE is an asynchronous feedback mode, and the feedback mode of the second wireless communication node and the UE is a synchronous feedback mode;
the sending third information to the first wireless communication node and sending fourth information to the second wireless communication node in different subframes after the subframe N according to the information types of the first information and the second information respectively includes:
according to a synchronous feedback mode, the UE sends first wire information to a second wireless communication node in the subframe M; and according to the asynchronous feedback mode, the UE sends third information to the first wireless communication node in a certain subframe in a time window after the subframe M.
Referring to fig. 14, fig. 14 is a block diagram of an apparatus of a wireless communication node according to an embodiment of the present invention. Referring to fig. 14, fig. 14 is a wireless communication node 1400 according to an embodiment of the present invention, and the embodiment of the present invention does not limit the specific implementation of the wireless communication node. The wireless communication node 140 includes:
a processor (processor)1401, a Communications Interface (Communications Interface)1402, a memory (memory)1403, and a bus 1404.
The processor 1401, the communication interface 1402 and the memory 1403 are communicated with each other through a bus 1404.
A communication interface 1402 for communicating with a user device;
a processor 1401 for executing the program.
In particular, the program may include program code comprising computer operating instructions.
The processor 1401 may be a central processing unit CPU or an Application Specific Integrated Circuit (ASIC) or one or more Integrated circuits configured to implement embodiments of the present invention.
A memory 1403 for storing the program. The memory 1403 may be a volatile memory (volatile memory) such as a random-access memory (RAM), or a non-volatile memory (non-volatile memory) such as a read-only memory (ROM), a flash memory (flash memory), a hard disk (HDD), or a solid-state drive (SSD). The processor 1401, according to program instructions stored in the memory 1403, performs the following method:
when the wireless communication node is a first wireless communication node, the wireless communication node is used for sending first information to the UE, and when the wireless communication node is a second wireless communication node, the wireless communication node is used for sending second information to the UE;
and when the wireless communication node is a second wireless communication node, the wireless communication node is used for receiving fourth information sent to the second wireless communication node by the UE according to the information types of the first information and the second information.
Before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a first configuration message to the UE, wherein the first configuration message carries an identifier of the first wireless communication node or an identifier of the second wireless communication node, and the identifier is used for indicating the UE to send third information to the first wireless communication node or the second wireless communication node corresponding to the identifier.
Before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a second configuration message to the UE, wherein the second configuration message carries the asynchronous feedback mode configured for the UE by the first wireless communication node.
Before the step of sending the data information or the scheduling information to the UE, the method further includes:
and sending a third configuration message to the UE, wherein the third configuration message carries a synchronous feedback mode configured by the first wireless communication node for the first wireless communication node, and the second wireless communication node is an asynchronous feedback mode configured by the UE.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (51)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013074579 | 2013-04-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104303579A true CN104303579A (en) | 2015-01-21 |
| CN104303579B CN104303579B (en) | 2018-06-26 |
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| WO2021030939A1 (en) * | 2019-08-16 | 2021-02-25 | Zte Corporation | Terminal power saving using minimum values of a set of parameters |
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| US10419167B2 (en) | 2015-02-09 | 2019-09-17 | Huawei Technologies Co., Ltd. | RLC data packet retransmission method and eNodeB |
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| CN116321454B (en) * | 2016-08-25 | 2025-07-29 | 高通股份有限公司 | Autonomous resource selection for multiple transmissions in device-to-device communication |
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| WO2024065639A1 (en) * | 2022-09-30 | 2024-04-04 | Qualcomm Incorporated | Techniques for channel access-aware conflict determination for unlicensed sidelink bands |
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