WO2011047580A1 - 中继节点的数据传输冲突的处理方法和装置 - Google Patents
中继节点的数据传输冲突的处理方法和装置 Download PDFInfo
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- WO2011047580A1 WO2011047580A1 PCT/CN2010/076621 CN2010076621W WO2011047580A1 WO 2011047580 A1 WO2011047580 A1 WO 2011047580A1 CN 2010076621 W CN2010076621 W CN 2010076621W WO 2011047580 A1 WO2011047580 A1 WO 2011047580A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/047—Public Land Mobile systems, e.g. cellular systems using dedicated repeater stations
Definitions
- the present invention relates to the field of communications, and in particular to a method and apparatus for processing a data transmission collision of a relay node (Relay-Node, abbreviated as RN).
- RN relay node
- the Evolved Universal Terrestrial Radio Access Network which is composed of a base station eNB, is also composed of a third-generation mobile communication Long Term Evolution (LTE) system.
- a radio interface Media Access Control (MAC) protocol layer which may be referred to as a base station eNB
- Dynamic scheduling Dynamic scheduling
- SPS semi-persistent Scheduling
- Dynamic Scheduling means that the E-UTRAN can pass the Cell Radio Network Temporary Identifier (C-RNTI) on the Physical Downlink Control Channel (PDCCH).
- C-RNTI Cell Radio Network Temporary Identifier
- PDCCH Physical Downlink Control Channel
- the Transmit Time Interval (TTI, corresponding to one subframe) is dynamically allocated to the user equipment (User Equipment, UE for short) for the UE to receive/send data, and the resource includes a physical resource block (Physical Resource) Block, abbreviated as PRB) and Modulation and Coding Scheme (MCS).
- PRB Physical Resource Block
- MCS Modulation and Coding Scheme
- the semi-persistent scheduling means that the E-UTRAN can allocate semi-persistent resources to the UE for receiving by the Semi-Persistent Scheduling C-RNTI (SPS C-RNTI) on the PDCCH.
- SPS C-RNTI Semi-Persistent Scheduling C-RNTI
- the data is transmitted, and the resources include a physical resource block PRB, a modulation and coding scheme MCS, and the like.
- the hybrid automatic repeat request (Hybrid ARQ, abbreviated as HARQ) of the UE uses the semi-persistent resource for the first transmission, and the HARQ retransmits the dynamically scheduled resource.
- the semi-persistent resource is repeatedly generated according to the configured period. If the UE is configured with a semi-persistent resource (Subframe), if the UE does not detect its C-RNTI on the PDCCH, the corresponding subframe is performed according to the semi-persistent resource. Receive or send.
- LTE-Advanced Long-Term Evolution advance
- One of the technologies in LTE-Advanced is to extend the coverage of the cell, reduce the dead zone in the communication, balance the load, transfer the service in the hot spot, and save the terminal (or called the user equipment UE).
- the transmit power of ).
- a new relay node is added between the original base station (Donor-eNB) and the UE, and the newly added RN and Donor-eNB are connected by wireless, and there is no cable between the transmission network. connection.
- the radio link between the Donor-eNB and the RN is called a backhaul link, and the radio link between the RN and the UE is called an access link.
- the downlink data first arrives at the Donor-eNB.
- R-PDCCH RN-dedicated physical downlink control channel
- R-PDSCH physical downlink shared channel
- R-PUSCH Physical uplink shared channel
- R-PDCCH is used to dynamically and semi-statically allocate R-PDSCH resources and R-PUSCH resources, where R-PDSCH resources are used to transmit downlink data of backhaul link, R-PUSCH resources. Used to transmit upstream data of the backhaul link.
- the Donor-eNB also has a new scheduling function to schedule the RN, which means that the R-PDCCH can indicate multiple backhaul subframes (backhaul subframe).
- Downstream resources/upstream resources such a method of indicating a resource is referred to as multi-subframe scheduling.
- multi-subframe scheduling such a method of indicating a resource is referred to as multi-subframe scheduling.
- the following line transmission is taken as an example.
- the RN receives the downlink assignment of the dynamic scheduling (or semi-persistent scheduling).
- the downlink assignment of the received dynamic scheduling indicates that the subframe in which the downlink data is received is the same as the subframe in which the downlink assignment of the multi-subframe scheduling indicates that the downlink data is received, that is, a collision occurs in the subframe.
- a mechanism needs to be introduced to enable the RN to resolve the conflict and implement subsequent normal transmission.
- the RN receives the uplink grant of the dynamic scheduling (or semi-persistent scheduling), if the received dynamic scheduling (or The uplink grant indication of the semi-persistent scheduling indicates that the subframe in which the uplink data is sent is the same as the subframe in which the uplink grant of the multi-subframe scheduling indicates that the uplink data is transmitted, that is, a collision occurs in the subframe, and a mechanism needs to be introduced to enable the RN to solve the problem.
- Conflict issues and subsequent normal transmissions In view of the problem that data transmission is prone to conflict in the related art, an effective solution has not been proposed yet.
- the main object of the present invention is to provide a method and apparatus for processing data transmission conflicts of an RN to solve at least one of the above problems.
- a method of processing a data transmission collision of an RN is provided.
- the processing method for the data transmission conflict of the RN includes: if the RN is configured with the multi-subframe scheduling resource on the backhaul subframe, if the RN acquires the dynamic resource in the backhaul subframe, the RN And using the multi-subframe scheduling resource or the dynamic resource to receive or send data on the backhaul subframe, or any other processing; if the RN obtains a semi-persistent resource in the backhaul subframe, the RN is in the backhaul.
- the multi-subframe scheduling resource or the semi-persistent resource described above is used to receive or transmit data on the subframe, or no processing is performed.
- a processing apparatus for data transmission collision of a relay node RN includes: an acquiring module, configured to obtain a dynamic resource or a semi-persistent resource in the backhaul subframe; and a first processing module, configured to: In the case that the dynamic resource is obtained in the backhaul subframe, the multi-subframe scheduling resource or the dynamic resource is used to receive or transmit data in the backhaul subframe, or any processing is not performed; the second processing module is configured to: In the case that the semi-persistent resource is obtained on the backhaul subframe, the multi-subframe scheduling resource or the semi-persistent resource is used to receive or transmit data on the backhaul subframe, or no processing is performed.
- the RN uses the corresponding according to the multi-subframe scheduling, the dynamic scheduling, or the semi-persistent scheduling.
- the data is transmitted by the data, thereby solving the conflict problem of data transmission and realizing normal transmission.
- FIG. 1 is a schematic diagram of a network architecture utilizing relay technology according to the related art
- FIG. 2 is a flowchart of a method for processing data transmission conflicts according to an embodiment of the present invention
- FIG. 4 is a specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 1 of the present invention
- FIG. 1 is a schematic diagram of a network architecture utilizing relay technology according to the related art
- FIG. 2 is a flowchart of a method for processing data transmission conflicts according to an embodiment of the present invention
- FIG. 4 is a specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 1 of the present invention
- FIG. 1 is a schematic diagram of a network architecture utilizing relay technology according to the related art
- FIG. 2 is a flowchart of a method for processing data transmission conflicts according to an embodiment of the present invention
- FIG. 4 is a specific flowchart of a method for processing a
- FIG. 4 is a specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 1 of the present invention
- FIG. 6 is a specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 1 of the present invention
- FIG. 6 is a specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 1 of the present invention
- FIG. 8 is a specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 1 of the present invention; A specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 2 of the present invention;
- FIG. 10 is a data of a relay node according to Embodiment 2 of the present invention;
- FIG. 11 is a specific flowchart of a method for processing a data transmission conflict of a relay node according to Embodiment 2 of the present invention;
- the present invention provides a method and apparatus for processing data transmission collisions in view of the problem that data transmission is prone to conflict in the related art. According to the solution of the present invention, in the case of a data transmission conflict,
- the RN chooses to perform data transmission according to multi-subframe scheduling or dynamic scheduling (or semi-persistent scheduling), thereby solving the conflict of data transmission and realizing normal transmission.
- a method for processing a data transmission conflict of an RN is provided.
- the embodiment of the present invention is applied to the following scenario: On the backhaul subframe, the RN is configured with multiple subframe scheduling resources, and the RN has a data transmission conflict on the backhaul subframe. As shown in FIG. 2, the method includes the following steps S202 to S204:
- the RN uses the multi-subframe scheduling resource or the dynamic resource to receive or send data on the backhaul subframe, or does not perform any processing.
- the RN uses the multi-subframe scheduling resource or the semi-persistent resource to receive or send data on the backhaul subframe, or does not process any processing.
- the dynamic resource may be obtained by the following steps: 1) On the foregoing backhaul subframe or before the backhaul subframe, the RN temporarily identifies the C-RNTI through the cell-radio network or the C-RNTI dedicated to the RN in the RN-dedicated physics.
- the foregoing dynamic resource is detected on the downlink control channel R-PDCCH; or 2)
- the RN is configured with a dynamic resource for non-adaptive retransmission, and is used to instruct the RN to send uplink data in the backhaul subframe.
- the semi-persistent resource may be obtained by using the following resources: 1) On the above-mentioned backhaul subframe or before the backhaul subframe, the RN temporarily identifies the SPS C-RNTI by using the semi-persistent scheduling cell-radio network or the SPS C-RNTI dedicated to the RN.
- the semi-persistent resource is detected on the physical downlink control channel R-PDCCH dedicated to the RN; or
- the above RN On the above backhaul subframe, the above RN is configured with a semi-persistent resource. And the RN clears the multi-subframe scheduling resource after the RN acquires or transmits data by using the multi-subframe scheduling resource in the backhaul subframe, where the RN obtains the dynamic resource in the backhaul subframe; or The RN reserves the multi-subframe scheduling resource before or after the RN uses the multi-subframe scheduling resource to receive or transmit data, or the RN uses the dynamic resource receiving in the backhaul subframe. The RN clears or retains the multi-subframe scheduling resource before or after the data is transmitted.
- the RN acquires the semi-persistent resource in the backhaul subframe, after the RN uses the multi-subframe scheduling resource to receive or transmit data in the backhaul subframe, the RN clears the multi-subframe scheduling resource; or The RN retains the multi-subframe scheduling resource before or after the RN uses the multi-subframe scheduling resource to receive or transmit data on the backhaul subframe, or the RN uses the semi-persistent in the backhaul subframe. The RN clears or retains the above multi-subframe scheduling resources before or after the resource receives or transmits data.
- the RN may clear or retain the half before or after the RN uses the multi-subframe scheduling resource to receive or transmit data in the backhaul subframe.
- the RN clears the semi-persistent resource after the RN uses the semi-persistent resource to receive or transmit the data, or the RN uses the semi-persistent resource to receive or the RN in the backhaul subframe.
- the RN retains the above semi-persistent resources before or after sending the data.
- the RN uses the dynamic resource or the semi-persistent resource to receive or transmit data on the current backhaul subframe, and the RN retains the multi-subframe scheduling resource, the RN is located under the current backhaul subframe and is indicated by the multi-subframe scheduling indication.
- the RN uses the HARQ process corresponding to the next backhaul subframe, or the RN uses the HARQ process corresponding to the current backhaul subframe.
- the operation of receiving or transmitting data may receive or send data by using a dynamic resource or a semi-persistent resource.
- the RN may use the foregoing dynamic resource or the semi-persistent resource to receive or send data by using a hybrid automatic retransmission HARQ process, where the foregoing HARQ process includes: multiple subframe scheduling One of the indicated HARQ processes, or a multi-subframe scheduling unspecified HARQ process.
- the multi-subframe scheduling resource refers to a resource allocated by the base station to the RN, and is used to indicate that the RN receives data in consecutive multiple downlink backhaul subframes or transmits data in consecutive multiple uplink backhaul subframes. .
- the process of the RN performing the service transmission mainly includes the following steps: Step S302:
- the RN acquires configuration information of the downlink backhaul subframe and the uplink backhaul subframe, so as to know which are downlink backhaul subframes and which are uplink backhaul subframes.
- the RN may obtain the configuration information of the downlink backhaul subframe by using the dedicated RRC signaling or the system information delivered by the base station, and the RN may use the dedicated RRC signaling delivered by the base station, system information, or the system according to predefined rules and downlinks.
- the configuration information of the backhaul subframe acquires the configuration information of the uplink backhaul subframe.
- the predefined rules of the system may be existing HARQ timings.
- a subframe after 4 ms of a downlink backhaul subframe is an uplink backhaul subframe.
- the system-predefined rules may also be RN-specific HARQ timings, and the RN-specific HARQ timings may be predefined by the system, or may be obtained by the RN through the RRC signaling delivered by the eNB.
- the configuration information of the downlink backhaul subframe and the uplink backhaul subframe may further include a correspondence between the subframe and the HARQ process, that is, which process is used for each subframe to perform uplink or downlink transmission, and of course, the subframe and the process. The correspondence can also be predefined by the system.
- Step S304 The RN acquires scheduling information of the multi-subframe scheduling, and starts scheduling the multi-subframe scheduling by the scheduling information.
- the method for the RN to obtain the scheduling information may include: the RN acquiring a downlink assignment (or an uplink grant) indicated by a DCI (downlink control information) format dedicated to multi-subframe scheduling on the R-PDCCH according to the C-RNTI. Or, the RN is dedicated to scheduling according to multiple subframes.
- the RNTI acquires the downlink assignment (or the uplink grant; indicated by the existing DCI format) on the R-PDCCH; or the RN acquires the dedicated subframe RNTI according to the multi-subframe scheduling on the R-PDCCH.
- the RNTI dedicated to multi-subframe scheduling is configured by RRC signaling.
- the multi-subframe scheduling dedicated DCI includes at least a physical resource block (Physical Resource Block, PRB for short) and a Modulation and Coding Scheme (MCS).
- PRB Physical Resource Block
- MCS Modulation and Coding Scheme
- the number of subframes is not obtained by system pre-defined or RRC signaling, the number of subframes must be included; if the PRB (MCS) of the subsequent subframe is different from the starting subframe, the PRB (MCS) of the subsequent subframe must be included. If the process id of the starting subframe cannot be obtained according to the starting subframe (for example, there is no corresponding relationship between the subframe and the process id;), the process id of the starting subframe must be included. If the same DCI format is used for uplink and downlink, the flag bit must be included to distinguish whether the DCI is used for uplink or downlink. Of course, the dedicated DCI can include the process id of the NDI, RV, and subsequent subframes.
- the multi-subframe scheduling dedicated MAC CE includes at least the PRB and MCS of the starting subframe. If the number of subframes is not obtained by system pre-defined or RRC signaling, the number of subframes must be included; if the PRB (MCS) of the subsequent subframe is different from the starting subframe, the PRB (MCS) of the subsequent subframe must be included.
- the process id of the starting subframe cannot be obtained according to the starting subframe (for example, the correspondence between no subframe and process id;), the process id of the starting subframe must be included. If the same DCI format is used for uplink and downlink, the flag bit must be included to distinguish whether the DCI is used for uplink or downlink.
- the dedicated DCI can include the process id of the NDI, RV, and subsequent subframes. If the above-mentioned MAC CE does not include the NDI, it means that the NDI uses the default value of the multi-subframe scheduling (which may be 1 or 0, which is pre-agreed), and the transmission is the first transmission.
- the RN receives the downlink assignment of the multi-subframe scheduling sent by the base station in the subframe D1, and the downlink assignment indicates that the RN receives the downlink data in the subframes D1, D2, and D3 and respectively processes the process. 1, process 2, process 3 processing.
- the RN reserves the downlink assignment of the multi-subframe scheduling described. For example, in subframe D1, the RN receives data according to the downlink assignment scheduled by the multi-subframe and processes the first transmission with process 1.
- the RN receives the uplink grant of the multi-subframe scheduling sent by the base station in the subframe D, and the uplink grant indicates that the RN receives the downlink data in the subframes U1, U2, and U3 and processes the process 1, the process 2, and the process respectively. 3 processing.
- the RN reserves the uplink grant of the multi-subframe scheduling. For example, in subframe U1, the RN transmits data according to the uplink grant scheduled by the multiple subframes and processes the first transmission with process 1.
- Step S306 The RN acquires scheduling information of dynamic scheduling (or semi-persistent scheduling), and downlink (or uplink) transmission indicated by the scheduling information and downlink (or uplink) transmission indicated by scheduling information of multiple subframe scheduling in step S304 The conflict, the RN is processed in accordance with a processing method of data transmission collision according to an embodiment of the present invention described later.
- the method for the RN to obtain the dynamically scheduled dynamic resource may include: a downlink assignment (or an uplink grant) obtained by the RN according to the C-RNTI on the R-PDCCH, where the downlink assignment or the uplink grant indicates the corresponding dynamic resource; or
- the RN is configured with uplink resources for non-adaptive retransmission.
- the method for the RN to obtain the semi-persistent resource of the semi-persistent scheduling may include: a downlink assignment (or an uplink grant;) obtained by the RN according to the SPS C-RNTI on the R-PDCCH, where the downlink assignment or the uplink grant indicates the corresponding dynamic
- the RN is configured with a downlink SPS resource (or an uplink SPS resource;); or, the RN is configured with an uplink resource for non-adaptive retransmission.
- the foregoing data transmission conflict refers to: in the current backhaul subframe, the RN is configured in advance to receive the downlink data by using the multi-subframe scheduling resource indicated by the downlink multi-subframe scheduling indication, and, in the backhaul sub
- the RN obtains scheduling information of dynamic scheduling or semi-persistent scheduling on the frame or before the backhaul subframe, and the scheduling information of the dynamic scheduling or the semi-persistent scheduling indicates that the dynamic resource or the semi-persistent resource is received on the backhaul subframe.
- Downstream data In the current backhaul subframe, the RN is configured in advance to receive the downlink data by using the multi-subframe scheduling resource indicated by the downlink multi-subframe scheduling indication, and, in the backhaul sub
- the RN obtains scheduling information of dynamic scheduling or semi-persistent scheduling on the frame or before the backhaul subframe, and the scheduling information of the dynamic scheduling or the semi-persistent scheduling indicates that the dynamic resource or the semi-persistent resource is received on the backha
- the RN does not know whether to use the resources scheduled by the multiple subframes or the resources indicated by the dynamic scheduling or semi-persistent scheduling to receive the downlink data, so that the data transmission conflict occurs on the current backhaul subframe.
- the above data transmission conflict refers to: on the current backhaul subframe,
- the RN is configured to use the multi-subframe scheduling resource indicated by the uplink multi-subframe scheduling indication to send the uplink data, and the RN obtains the scheduling information of the dynamic scheduling or the semi-persistent scheduling on the backhaul subframe or before the backhaul subframe.
- the scheduling information of the dynamic scheduling or semi-persistent scheduling indicates that the uplink data is sent by the dynamic resource or the semi-persistent resource on the backhaul subframe. In this way, the RN does not know whether to use the resources scheduled by multiple subframes or the resources indicated by dynamic scheduling or semi-persistent scheduling to transmit the number of uplinks. According to this, a problem of data transmission conflict occurs on the current backhaul subframe.
- the scheduling information of the dynamic scheduling indicates that the RN receives the downlink data or the HARQ process used to send the uplink data may be the HARQ process indicated in the scheduling information of the multi-subframe scheduling.
- the base station instructs the RN to receive downlink data in subframes D1, D2, and D3 through multi-subframe scheduling and process them in process 1, process 2, and process 3, respectively.
- the base station may schedule the retransmission of the failed transmission in the subframe D2, and the dynamic scheduling may indicate that the RN uses the process 1 (multiple One of the processes indicated in the scheduling information of the subframe scheduling receives downlink data. If the base station configures the semi-persistent resource for the RN to receive the downlink data in the subframe D2, the process used in the semi-persistent scheduling has a certain correspondence with the subframe, and the process corresponding to the subframe D2 is the process 1 (multiple children) One of the processes indicated in the scheduling information of the frame scheduling).
- the foregoing HARQ process may also be a HARQ process that is not indicated in the scheduling information of the multi-subframe scheduling.
- the base station instructs the RN to receive downlink data in subframes D1, D2, and D3 through multi-subframe scheduling and process them in process 1, process 2, and process 3, respectively. If the base station D2 temporarily has a service to be transmitted to the RN, the dynamic scheduling indication RN receives the downlink data using process 4 (a process not included in the multi-subframe scheduling).
- the process used in the semi-persistent scheduling has a certain correspondence with the subframe, and it is assumed that the process corresponding to the subframe D2 is the process 4 (multi-subframe scheduling) No process).
- the scheduling information of the dynamic scheduling may be similar to the downlink transmission.
- Embodiment 1 When a multi-subframe scheduling and a semi-persistent scheduling have data transmission conflicts, the downlink assignment (or uplink grant:) of the semi-persistent scheduling is ignored on the backhaul subframe where the collision occurs, and the downlink assignment according to the multi-subframe scheduling is performed. Receive downlink data (or send uplink data according to uplink grants scheduled by multiple subframes). Considering that semi-persistent scheduling has a certain periodicity (such as a typical period of 20ms), and multi-subframe scheduling is to schedule multiple consecutive subframes, the probability of the two continuing to collide is small. Therefore, semi-persistent resources and multiple children are reserved. Frame scheduling resources are used for subsequent data transmission.
- periodicity such as a typical period of 20ms
- the subsequent multi-subframe scheduling is continued, that is, on the subframe for multi-subframe scheduling after the current backhaul subframe, downlink data is received according to the downlink assignment of the multi-subframe scheduling (or The uplink grant of multi-subframe scheduling sends uplink data).
- the RN receives and retains the downlink assignment of the multi-subframe scheduling sent by the base station in the subframe D1, where the downlink assignment indicates that the RN receives in the subframes D1, D2, and D3.
- the data is processed by Process 1, Process 2, Process 3, respectively.
- the RN receives data according to the downlink assignment of the multi-subframe scheduling in the subframe D1 and processes it in the process 1.
- the base station configures and activates semi-persistent scheduling for the RN, setting its period to 20 ms.
- the RN is configured with a semi-persistent downlink resource on the subframe D2, instructing the RN to receive data in D2 and process it in process 4, and according to the downlink assignment scheduled by the reserved multi-subframe, the RN receives data in D2 and processes it in process 2. That is, multi-subframe scheduling and semi-persistent scheduling have data transmission collisions on subframe D2.
- the RN performs scheduling processing according to the multi-subframe, that is, the received data is processed by the process 2, and the data reception of the semi-persistent scheduling indication is ignored.
- the RN reserves semi-persistent resources and multi-subframe scheduling resources.
- the RN receives the downlink data according to the downlink assignment of the reserved multi-subframe scheduling in D3 and processes it in process 3. At this time, the multi-subframe scheduling ends, and the data transmission indicated by the reserved semi-persistent resource no longer conflicts with the current multi-subframe scheduling.
- the RN receives the uplink grant of the multi-subframe scheduling sent by the base station in the subframe D, and the uplink grant indication: the RN receives the downlink data in the subframes U1, U2, and U3.
- RN retains the uplink grant of the multi-subframe scheduling; before subframe U2, the base station configures and activates semi-persistent scheduling for the RN, and sets its period to 20 ms hear RN
- a semi-persistent downlink resource is configured in the subframe U2, indicating that the data is transmitted on the subframe U2 and processed by the process 4, and according to the uplink grant scheduled by the reserved multiple subframes, the RN sends the data to the process 2 in the U2. That is, the multi-subframe scheduling and the semi-persistent scheduling have data transmission conflicts on the sub-frame U2.
- the RN is in a multi-subframe scheduling process, that is, the transmission data is processed by the process 2, and the data transmission indicated by the semi-persistent scheduling is ignored. Resources and multi-subframe scheduling resources.
- the RN sends uplink data according to the uplink grant scheduled by the reserved multiple subframes, and the process proceeds to process 3 deal with.
- the multi-subframe scheduling ends, and the data transmission indicated by the reserved semi-persistent resource no longer conflicts with the current multi-subframe scheduling.
- the RN can also clear semi-persistent resources, such as a conflict indicating that semi-persistent scheduling is unsuccessful.
- the RN may also clear the multi-subframe scheduling resource. For example, the base station allocates a semi-persistent resource to the RN, implicitly indicating that the multi-subframe scheduling is required to be terminated. As shown in FIG. 5 and FIG.
- the RN clears the multi-subframe scheduling resource, and the backhaul sub-frame behind the conflicting backhaul sub-frame On the frame, for example, D3 or U3, the multi-subframe scheduling process does not continue.
- the RN may also receive or transmit data in a semi-persistent resource in a conflicting subframe. For example, the base station allocates a semi-persistent resource to the RN to immediately receive or transmit data according to the semi-persistent resource.
- the RN may not process any of the conflicting subframes.
- the semi-persistent scheduling indication process of receiving downlink data or transmitting uplink data may include: a process of multi-subframe scheduling indication (such as process 1, as shown in FIG. 7 and FIG. 8; 2. Process 3), or other process (such as process 4).
- a semi-persistent resource is used on the conflicting subframe D2 or U2 but the multi-subframe scheduling resource is reserved, it is used on the subframe D3 or U3 of the subsequent multi-subframe scheduling indication.
- the arriving HARQ process may be a HARQ process corresponding to the subframe (for example, process 3), or may be a HARQ process (for example, process 2) corresponding to the backhaul subframe D2 or U2 in which the collision occurs.
- the RN uses semi-persistent resources, or uses multiple subframes to schedule resources, or does nothing; whether the RN wants to reserve semi-persistent resources, whether the RN wants to reserve multi-subframe scheduling resources, and uses semi-persistent resources.
- the used HARQ process is a process indicated in the multi-subframe scheduling, does not use the multi-subframe scheduling resource on the conflicting subframe, but retains the multi-subframe scheduling resource, and is in the subframe of the subsequent multi-subframe scheduling indication.
- the used HARQ process is the HARQ process corresponding to the subframe or the HARQ process corresponding to the conflicting subframe, any combination of the above may be used as a preferred embodiment of the present invention, and is not described herein.
- the scenario that causes the collision may be as follows: The semi-persistent scheduling resource received by the RN and the multi-subframe scheduling resource indication RN are in the same subframe. Receive/send data.
- the above semi-persistent resource indicates a resource indicating the first transmission.
- Embodiment 2 When multi-subframe scheduling and dynamic scheduling have data transmission conflicts, the downlink assignments (or uplink grants) of the multi-subframe scheduling are ignored in the collision backhaul subframe, and the downlink assignments are received according to the dynamic scheduling. Downlink data (or uplink data according to dynamically scheduled uplink grant). Since dynamic scheduling only allocates resources for one subframe, it has no effect on subsequent subframes, and does not cause collision of subsequent subframes. Therefore, multiple subframe scheduling resources are reserved for data transmission of subsequent subframes.
- the subsequent multi-subframe scheduling is continued, that is, on the subframe for multi-subframe scheduling after the current backhaul subframe, downlink data is received according to the downlink assignment of the multi-subframe scheduling (or The uplink grant of multi-subframe scheduling sends uplink data).
- the uplink grant of multi-subframe scheduling sends uplink data.
- the RN receives and retains the downlink assignment of the multi-subframe scheduling sent by the base station in the subframe D1, and the downlink assignment indicates that the RN receives the data in the subframes D1, D2, and D3 and processes the processes 1, process 2, and process 3, respectively.
- the RN receives data according to the downlink assignment scheduled by the multi-subframe in the subframe D1 and processes it in the process 1.
- the RN receives the dynamically scheduled downlink assignment sent by the base station on the subframe D2, and the downlink assignment indicates that the RN receives the data at the D2 and processes the data in the process, and the RN is in the downlink assignment according to the reserved multi-subframe scheduling.
- D2 is to receive data to process 2, that is, multi-subframe scheduling and dynamic scheduling have data transmission collisions on subframe D2.
- the RN processes according to the dynamic scheduling, that is, the received data is processed by the process 1, and the data reception indicated by the multi-subframe scheduling indication is ignored.
- the dynamic scheduling indication can be either a first pass or a retransmission.
- the RN reserves multiple subframe scheduling resources.
- the RN receives the downlink data according to the downlink assignment of the reserved multi-subframe scheduling in D3 and processes it in process 3.
- the RN since the RN does not use the multi-subframe scheduling indication process 2 in the subframe D2, the RN can also use the process in D3, that is, receive downlink data at D3 and process 2 deal with.
- the process in D3 that is, receive downlink data at D3 and process 2 deal with.
- the RN receives the uplink grant of the multi-subframe scheduling sent by the base station in the subframe D, where the uplink grant refers to
- the RN receives the downlink data in the subframes U1, U2, and U3 and processes them in the process 1, process 2, and process 3, respectively; the RN reserves the uplink grant of the multi-subframe scheduling;
- the RN receives the dynamically scheduled uplink grant sent by the base station before the subframe U2, and the uplink grant indication: the data is sent on the subframe U2 and processed by the process 1, and the uplink grant of the reserved multi-subframe scheduling, the RN is in the U2
- the data to be transmitted is processed by the process 2, that is, the multi-subframe scheduling and the dynamic scheduling cause a data transmission collision on the subframe U2.
- the RN processes according to the dynamic scheduling, that is, the transmission data is processed by the process 1, and the data transmission of the multi-subframe scheduling indication is ignored.
- the dynamic scheduling indication can be either a first pass or a retransmission.
- the RN reserves multiple subframe scheduling resources.
- the RN sends the uplink data in the uplink authorized resource scheduled by the U3 according to the reserved multi-subframe and processes it in process 3.
- the RN since the RN does not use the multi-subframe scheduling indication process 2 in the subframe U2, the RN can also use the process in U3, that is, send uplink data in U3 and process 2 deal with.
- the base station may also be considered to allocate a dynamic resource implicit representation of the RN to terminate the multi-subframe scheduling. Therefore, as shown in FIG. 11 and FIG.
- the RN is in the conflicting subframe D2 or
- the multi-subframe scheduling resource is cleared before or after the dynamic resource is used to receive or transmit data on U2, and the multi-subframe scheduling process is not continued on the sub-frame D3 or U3.
- dynamic scheduling may also be considered not to occur in multi-subframe scheduling, that is, the resources of the dynamic scheduling indication are ignored in the conflicting subframe, but the resource reception according to the multi-subframe scheduling indication. Or send data.
- the RN uses the multi-subframe scheduling resource to receive or transmit data on the conflicting subframe D2 or U2, and continues to process according to the multi-subframe scheduling in the subframe D3 or U3.
- the RN can also perform any processing in conflicting subframes.
- the scenario that causes the collision may be as follows: In the uplink dynamic scheduling, the non-adaptive retransmission resource and the multi-subframe scheduling resource instruct the RN to transmit data in the same subframe.
- the dynamic resource may be a resource indicating a first transmission, a resource indicating an adaptive retransmission, or a resource indicating a non-adaptive retransmission.
- the dynamic scheduling indicates that the process of receiving or transmitting data, except for the process indicated by the multi-subframe scheduling (such as process 1, process 2, process 3), may also be a process other than the process indicated by the multi-subframe scheduling, such as process 4 (eg, Figure 13 and Figure 14).
- the RN uses dynamic resources, or uses multiple subframes to schedule resources, or does nothing; whether the RN wants to reserve multi-subframe scheduling resources, and whether the HARQ process used when using dynamic resources is multi-sub-
- the process indicated in the frame scheduling, the HARQ process used in the subframe of the subsequent multi-subframe scheduling indication when the multi-subframe scheduling resource is not used but the multi-subframe scheduling resource is reserved on the conflicting subframe is the subframe corresponding to the subframe.
- the HARQ process is extended to the HARQ process corresponding to the conflicting subframe. Any combination of the above may be used as a preferred embodiment of the present invention, and is not described herein.
- the RRC signaling specifies the dedicated signaling of the UE or the designated RN, and may add the indication information in the existing RRC signaling (such as the RRC connection reconfiguration message) (the following configuration information of the backhaul subframe, the uplink backhaul sub-sub a field of frame configuration information, RN-specific HARQ timing, a correspondence between a subframe and a process id, a RNTI dedicated to multi-subframe scheduling, a number of subframes, etc., or a new RRC for transmitting the indication information Signaling.
- the indication information may be transmitted through the same RRC signaling or through multiple different RRC signaling.
- the RN uses the corresponding according to the multi-subframe scheduling, the dynamic scheduling, or the semi-persistent scheduling.
- the data is transmitted by the data, thereby solving the conflict problem of data transmission and realizing normal transmission.
- a processing apparatus for a data transmission collision of a relay node RN is provided, which is applied to a scenario in which the RN is configured with a multi-subframe scheduling resource on a backhaul subframe. As shown in FIG.
- the apparatus may further include:
- the processing module 1508 is configured to: after the foregoing multi-subframe scheduling resource is used to receive or send data on the backhaul subframe, clear the multi-subframe scheduling resource; and the fourth processing module 1510 is configured to use the foregoing on the backhaul subframe.
- the multi-subframe scheduling resource is reserved before or after the subframe scheduling resource receives or transmits data;
- the fifth processing module 1512 is configured to: The multi-subframe scheduling resource is cleared or reserved before or after the above dynamic resource is used to receive or transmit data on the above-mentioned backhaul subframe.
- the foregoing apparatus may further include (eg, The sixth processing module 1514 is configured to: after receiving or transmitting data by using the multi-subframe scheduling resource on the backhaul subframe, clear the multi-subframe scheduling resource; and the seventh processing module 1516, And the foregoing multi-subframe scheduling resource is reserved before or after the foregoing multi-subframe scheduling resource is used to receive or send data on the foregoing backhaul subframe; the eighth processing module 1518 is configured to use the semi-persistent resource on the backhaul subframe.
- the multi-subframe scheduling resource is cleared or reserved before or after receiving or transmitting data.
- the foregoing apparatus may further include: a ninth processing module 1520, configured to clear or before, before or after using the multi-subframe scheduling resource to receive or send data on the backhaul subframe.
- the semi-persistent resource is reserved;
- the tenth processing module 1522 is configured to: after receiving or sending data by using the semi-persistent resource on the backhaul subframe, clear the semi-persistent resource;
- the eleventh processing module 1524 is configured to:
- the semi-persistent resources are reserved before or after the frame is received or transmitted using the semi-persistent resources described above.
- the RN uses the corresponding according to the multi-subframe scheduling, the dynamic scheduling, or the semi-persistent scheduling.
- the data is transmitted by the data, thereby solving the conflict problem of data transmission and realizing normal transmission.
- modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
- the invention is not limited to any specific combination of hardware and software.
- the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.
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Description
中继节点的数据传输冲突的处理方法和装置 技术领域 本发明涉及通信领域, 具体而言, 涉及一种中继节点 (Relay-Node, 简 称为 RN ) 的数据传输冲突的处理方法和装置。 背景技术 第三代移动通信长期演进( Long Term Evolution,简称为 LTE )系统的"演 进的通用陆地无线接入网 ( Evolved Universal Terrestrial Radio Access Network, 简称为 E-UTRAN, 由基站 eNB组成, 因此也可以称为基站 eNB ) " 的无线接口媒体接入控制 (Media Access Control, 简称为 MAC )协议层, 存 在调度 /优先级处理 ( Scheduling/Priority handling ) 功能实体, 其中, 调度功 能支持动态调度 ( Dynamic scheduling ) 和半持久调度 ( Semi-persistent Scheduling, 简称为 SPS ) (或称为半静态调度)。 动态调度 ( Dynamic Scheduling )是指, E-UTRAN能够通过物理下行控 制信道 ( Physical Downlink Control Channel , 简称为 PDCCH )上的小区无线 网络临时标识( Cell Radio Network Temporary Identifier, 简称为 C-RNTI )在 每个传输时间间隔( Transmit Time Interval, TTI,对应于一个子帧( subframe ) ) 向用户设备 ( User Equipment, 简称为 UE )动态分配资源用于 UE接收 /发送 数据, 资源包括物理资源块 ( Physical Resource Block, 简称为 PRB )和调制 编码方案 ( Modulation and Coding Scheme, 简称为 MCS ) 等。 半持久调度是指, E-UTRAN可以通过在 PDCCH上的半持久调度小区 无线网络临时标识( Semi-Persistent Scheduling C-RNTI,简称为 SPS C-RNTI ) 为 UE 分配半持久资源用于 UE 接收或者发送数据, 资源包括物理资源块 PRB、 调制编码方案 MCS 等。 在半持久调度中, UE 的混合自动重传请求 ( Hybrid ARQ, 简称为 HARQ )首传使用半持久资源, HARQ重传使用动态 调度的资源。 半持久资源按照所配置的周期重复发生, 在 UE被配置有半持 久资源的子帧 ( Subframe ), 如果 UE没有在 PDCCH上监测到其 C-RNTI, 则在相应的子帧根据半持久资源进行接收或者发送。 在 UE被配置有半持久 资源的子帧, 如果 UE在 PDCCH上监测到其 C-RNTI, 则在相应的子帧使用 PDCCH指示的动态资源替代 (Override ) 半持久资源。
为了满足日益增长的大带宽高速移动接入的需求, 第三代伙伴组织计划 ( Third Generation Partnership Projects, 简称为 3GPP ) 4舞出高级长期演进 ( Long-Term Evolution advance, 简称为 LTE- Advanced )标准。 LTE- Advanced 对于 LTE的演进保留了的核心, 在此基础上釆用一系列技术对频域、 空域进 行扩充, 以达到提高频谱利用率、 增加系统容量等目的。 无线中继 (Relay ) 技术即 LTE-Advanced 中的技术之一, 旨在扩展小区的覆盖范围, 减少通信 中的死角地区, 平衡负载, 转移热点地区的业务, 节省终端 (或称为用户设 备 UE ) 的发射功率。 如图 1所示, 在原有的基站 (Donor-eNB ) 和 UE之间 增力 p—些新的中继节点, 这些新增的 RN和 Donor-eNB通过无线连接, 和传 输网络之间没有有线连接。 其中, Donor-eNB和 RN之间的无线链路称为回 程链路( backhaul link ), RN和 UE之间的无线链路称为接入链路( access link )„ 下行数据先到达 Donor-eNB, 然后再传递给 RN, RN再传输至 UE, 上行则 反之。 为了配置回程链路的资源, 定义了 RN 专用的物理下行控制信道 ( R-PDCCH ) , 物理下行共享信道 ( R-PDSCH ) 和物理上行共享信道 ( R-PUSCH )。 R-PDCCH 用于动态或半静态地分配 R-PDSCH 资源和 R-PUSCH资源, 其中, R-PDSCH资源用于传输 backhaul link的下行数据, R-PUSCH资源用于传输 backhaul link的上行数据。
Donor-eNB除了可以延用上述动态调度和半持久调度的功能调度 RN之 夕卜, 还有一种新的调度功能来调度 RN, 指的是 R-PDCCH可以指示多个回 程子帧 ( backhaul subframe ) 的下行资源 /上行资源。 在下文中, 这种指示资 源的方法称为多子帧调度。 以下行传输为例, 在根据下行多子帧调度的下行指配接收下行数据的过 程中, RN 收到动态调度 (或半持久调度) 的下行指配。 如果所接收到的动 态调度 (或半持久调度 ) 的下行指配指示接收下行数据的子帧与多子帧调度 的下行指配指示接收下行数据的子帧相同, 即在该子帧发生冲突, 此时需要 引入一个机制使得 RN能够解决该冲突问题, 并实现后续的正常传输。 同理的, 在上行传输中, 在根据上行多子帧调度的上行授权发送上行数 据的过程中, RN 收到动态调度 (或半持久调度 ) 的上行授权, 如果所接收 到的动态调度 (或半持久调度 ) 的上行授权指示发送上行数据的子帧与多子 帧调度的上行授权指示发送上行数据的子帧相同, 即在该子帧发生冲突, 此 时需要引入一个机制使得 RN能够解决该冲突问题,并实现后续的正常传输。
针对相关技术中数据传输容易产生冲突的问题, 目前尚未提出有效的解 决方案。 发明内容 针对相关技术中数据传输容易产生冲突的问题而提出本发明, 为此, 本 发明的主要目的在于提供一种 RN的数据传输冲突的处理方法和装置, 以解 决上述问题至少之一。 为了实现上述目的, 根据本发明的一个方面, 提供了一种 RN的数据传 输冲突的处理方法。 才艮据本发明的 RN的数据传输冲突的处理方法包括: 在回程子帧上上述 RN被配置有多子帧调度资源的情况下, 如果在上述回程子帧上上述 RN获 取得到动态资源, 则上述 RN在上述回程子帧上使用上述多子帧调度资源或 者上述动态资源来接收或者发送数据, 或者不故任何处理; 如果在上述回程 子帧上上述 RN获取得到半持久资源, 则上述 RN在上述回程子帧上使用上 述多子帧调度资源或者上述半持久资源来接收或者发送数据, 或者不做任何 处理。 为了实现上述目的, 居本发明的另一方面, 提供了一种中继节点 RN 的数据传输冲突的处理装置。 在回程子帧上上述 RN被配置有多子帧调度资源的情况下, 上述处理装 置包括: 获取模块, 用于在上述回程子帧上获取得到动态资源或半持久资源; 第一处理模块, 用于在上述回程子帧上获取得到上述动态资源的情况下, 在 上述回程子帧上使用上述多子帧调度资源或者上述动态资源来接收或者发送 数据, 或者不故任何处理; 第二处理模块, 用于在上述回程子帧上获取得到 上述半持久资源的情况下, 在上述回程子帧上使用上述多子帧调度资源或者 上述半持久资源来接收或者发送数据, 或者不 ^故任何处理。 根据本发明, 在多子帧调度与动态调度出现数据传输冲突, 或者多子帧 调度与半持久调度出现数据传输冲突的情况下, RN 根据多子帧调度、 动态 调度或半持久调度使用相应的资源进行数据传输, 从而解决了数据传输的冲 突问题, 实现正常传输。
附图说明 此处所说明的附图用来提供对本发明的进一步理解, 构成本申请的一部 分, 本发明的示意性实施例及其说明用于解释本发明, 并不构成对本发明的 不当限定。 在附图中: 图 1是根据相关技术的利用中继 ( relay ) 技术的网络架构的示意图; 图 2是根据本发明实施例的数据传输冲突的处理方法的流程图; 图 3是根据本发明实施例一的中继节点的数据传输冲突的处理方法的具 体流程图; 图 4是根据本发明实施例一的中继节点的数据传输冲突的处理方法的具 体流程图; 图 5是根据本发明实施例一的中继节点的数据传输冲突的处理方法的具 体流程图; 图 6是根据本发明实施例一的中继节点的数据传输冲突的处理方法的具 体流程图; 图 7是才艮据本发明实施例一的中继节点的数据传输冲突的处理方法的具 体流程图; 图 8是根据本发明实施例一的中继节点的数据传输冲突的处理方法的具 体流程图; 图 9是根据本发明实施例二的中继节点的数据传输冲突的处理方法的具 体流程图; 图 10 是根据本发明实施例二的中继节点的数据传输冲突的处理方法的 具体流程图; 图 11 是根据本发明实施例二的中继节点的数据传输冲突的处理方法的 具体流程图; 图 12 是根据本发明实施例二的中继节点的数据传输冲突的处理方法的 具体流程图;
图 13 是 居本发明实施例二的中继节点的数据传输冲突的处理方法的 具体流程图; 图 14 是根据本发明实施例二的中继节点的数据传输冲突的处理方法的 具体流程图; 图 15 是根据本发明实施例的中继节点的数据传输冲突的处理装置的结 构图。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是, 在 不冲突的情况下, 本申请中的实施例及实施例中的特征可以相互组合。 针对相关技术中数据传输容易产生冲突的问题, 本发明提供一种数据传 输冲突的处理方法和装置。 根据本发明的方案, 在数据传输冲突的情况下,
RN 选择根据多子帧调度或者动态调度 (或半持久调度) 进行数据传输, 从 而解决了数据传输的冲突问题, 实现正常传输。 才艮据本发明的实施例, 提供了一种 RN的数据传输冲突的处理方法。 居本发明的实施例应用于如下场景: 在回程子帧上 RN被配置有多子 帧调度资源, RN在上述回程子帧上出现数据传输冲突。 如图 2所示, 该方 法包括如下的步骤 S202至步骤 S204:
S202, 如果在上述回程子帧上上述 RN获取得到动态资源, 则上述 RN 在上述回程子帧上使用上述多子帧调度资源或者上述动态资源来接收或者发 送数据, 或不 ^故任何处理。
S204,如果在上述回程子帧上上述 RN获取得到半持久资源,则上述 RN 在上述回程子帧上使用上述多子帧调度资源或者上述半持久资源来接收或者 发送数据, 或不 ^故任何处理。 可以通过如下步骤获取得到动态资源: 1 ) 在上述回程子帧上或上述回程子帧之前, 上述 RN通过小区-无线网 络临时标识 C-RNTI或上述 RN专用的 C-RNTI在上述 RN专用的物理下行控 制信道 R-PDCCH上检测得到上述动态资源; 或者
2 ) 在上述动态资源用于发送上行数据的情况下, 在上述回程子帧上, 上述 RN被配置有用于非自适应重传的动态资源, 用于指示 RN在上述回程 子帧发送上行数据。 可以通过如下资源获取得到半持久资源: 1 )在上述回程子帧上或上述回程子帧之前, 上述 RN通过半持久调度小 区 -无线网络临时标识 SPS C-RNTI或上述 RN专用的 SPS C-RNTI在上述 RN 专用的物理下行控制信道 R-PDCCH上检测得到上述半持久资源; 或者
2 ) 在上述回程子帧上, 上述 RN被配置了半持久资源。 在上述回程子帧上上述 RN获取得到动态资源的情况下, 在上述回程子 帧上、 上述 RN使用上述多子帧调度资源接收或者发送数据之后, 上述 RN 清除上述多子帧调度资源; 或者, 在上述回程子帧上、 上述 RN使用上述多 子帧调度资源接收或者发送数据之前或者之后, 上述 RN保留上述多子帧调 度资源; 或者, 在上述回程子帧上、 上述 RN使用上述动态资源接收或者发 送数据之前或者之后, 上述 RN清除或保留上述多子帧调度资源。 在上述回程子帧上上述 RN获取得到半持久资源的情况下, 在上述回程 子帧上、上述 RN使用上述多子帧调度资源接收或者发送数据之后,上述 RN 清除上述多子帧调度资源; 或者, 在上述回程子帧上、 上述 RN使用上述多 子帧调度资源接收或者发送数据之前或者之后, 上述 RN保留上述多子帧调 度资源; 或者, 在上述回程子帧上、 上述 RN使用上述半持久资源接收或者 发送数据之前或者之后, RN清除或保留上述多子帧调度资源。 进一步, 在上述回程子帧上上述 RN获取得到半持久资源的情况下, 在 上述回程子帧上、 上述 RN使用上述多子帧调度资源接收或者发送数据之前 或者之后, RN可以清除或保留上述半持久资源; 或者, 在上述回程子帧上、 上述 RN使用上述半持久资源接收或者发送数据之后, RN清除上述半持久 资源; 或者, 在上述回程子帧上、 上述 RN使用上述半持久资源接收或者发 送数据之前或者之后, RN保留上述半持久资源。 在上述 RN在当前回程子帧上使用动态资源或者半持久资源接收或者发 送数据, 且上述 RN保留多子帧调度资源的情况下, 在位于当前回程子帧之 后的由多子帧调度指示的下一个回程子帧上, RN 使用与该下一个回程子帧 对应的 HARQ进程, 或者 RN使用与当前回程子帧对应的 HARQ进程, 来
进行接收或发送数据的操作。 上述 RN使用动态资源或者半持久资源接收或者发送数据可以包括: RN 通过混合自动重传 HARQ 进程使用上述动态资源或者上述半持久资源进行 接收或者发送数据, 其中, 上述 HARQ进程包括: 多子帧调度指示的 HARQ 进程之一, 或者是多子帧调度未指示的 HARQ进程。 优选的, 上述多子帧调度资源指的是基站分配给上述 RN的资源, 用于 指示上述 RN在连续的多个下行回程子帧上接收数据或者在连续的多个上行 回程子帧上发送数据。 下面将结合实例对本发明实施例的实现过程进行详细描述。 首先对 RN进行业务传输的过程进行简单的描述。 根据本发明实施例的
RN进行业务传输的过程主要包括如下步骤: 步骤 S302: RN获取下行 backhaul子帧、上行 backhaul子帧的配置信息, 从而知道哪些为下行 backhaul子帧, 哪些为上行 backhaul子帧。 该步骤中, RN可以通过基站下发的专用 RRC信令或者系统信息获取下 行 backhaul子帧的配置信息, RN可以通过基站下发的专用 RRC信令、 系统 信息或者根据系统预定义的规则和下行 backhaul 子帧的配置信息获取上行 backhaul子帧的配置信息。所述系统预定义的规则可以是现有的 HARQ时序, 如在 FDD中,下行 backhaul子帧的 4ms之后的子帧即为上行 backhaul子帧。 系统预定义的规则也可以是 RN专用的 HARQ时序, 所述 RN专用的 HARQ 时序可以是系统预定义的, 也可以是 RN通过基站下发的 RRC信令获取的。 此外, 下行 backhaul子帧、 上行 backhaul子帧的配置信息还可以包括子 帧与 HARQ进程( process )的对应关系, 即指每个子帧进行上行或者下行传 输占用哪个 process , 当然, 子帧与 process的对应关系也可以是系统预定义 的。 步骤 S304: RN获取多子帧调度的调度信息, 并 居所述调度信息开始 多子帧调度。
RN获取所述调度信息的方法可以包括: RN根据 C-RNTI在 R-PDCCH 上获取由多子帧调度专用的 DCI ( Downlink Control Information, 下行控制信 息)格式指示的下行指配 (或者上行授权); 或者, RN根据多子帧调度专用
的 RNTI在 R-PDCCH上获取由现有的 DCI格式指示的下行指配 (或者上行 授权;); 或者, RN根据多子帧调度专用的 RNTI在 R-PDCCH上获取由多子 帧调度专用的 DCI格式指示的下行指配(或者上行授权); 或者, RN获取多 子帧调度专用的 MAC控制元 ( Control Element, 简称 CE ) 指示的下行指配 (或者上行授权;);或者, RN获取之前保留的用于多子帧调度的下行指配(或 者上行授权)。 其中, 多子帧调度专用的 RNTI由 RRC信令配置。 多子帧调度专用的 DCI 至少包括起始子帧的物理资源块 (Physical Resource Block,简称 PRB )和调制编码方案( Modulation and Coding Scheme, 简称 MCS )。若子帧个数事先没有通过系统预定义或 RRC信令获得则必须包 括子帧个数; 若后续子帧的 PRB ( MCS )与起始子帧的不同则必须包括后续 子帧的 PRB ( MCS ); 若起始子帧的 process id不能根据起始子帧获得(如无 子帧和 process id的对应关系;), 则必须包括起始子帧的 process id。 若上下行 釆用同一个 DCI格式, 则必须包括标志位区分该 DCI用于上行还是下行。 当 然, 专用 DCI可以包括 NDI、 RV、 后续子帧的 process id。 如果上述 DCI中不包括 NDI, 则表示 NDI釆用多子帧调度的默认值 (可 以是 1 , 也可以是 0, 预先约定), 代表传输的是首传。 如果所述 DCI中不包 括 RV, 则表示 RV为 0, 代表传输的是 HARQ冗余版本 0。 多子帧调度专用的 MAC CE至少包括起始子帧的 PRB和 MCS。 若子帧 个数事先没有通过系统预定义或 RRC 信令获得则必须包括子帧个数; 若后 续子帧的 PRB( MCS )与起始子帧的不同则必须包括后续子帧的 PRB( MCS ); 若起始子帧的 process id不能才艮据起始子帧获得(如无子帧和 process id的对 应关系;), 则必须包括起始子帧的 process id。若上下行釆用同一个 DCI格式, 则必须包括标志位区分该 DCI用于上行还是下行。 当然, 专用 DCI可以包括 NDI、 RV、 后续子帧的 process id。 如果上述 MAC CE中不包括 NDI, 则表示 NDI釆用多子帧调度的默认 值(可以是 1 , 也可以是 0, 预先约定), 代表传输的是首传。 如果所述 MAC CE中不包括 RV, 则表示 RV为 0, 代表传输的是 HARQ冗余版本 0。 对于下行传输的场景, RN在子帧 D1收到基站发送的多子帧调度的下行 指配, 该下行指配指示 RN在子帧 Dl、 D2、 D3接收下行数据并分别以进程
1、 进程 2、 进程 3处理。 RN保留所述的多子帧调度的下行指配。 例如, 在 子帧 D1 , RN根据所述多子帧调度的下行指配接收数据并以进程 1处理首传。 对于上行传输的场景, RN在子帧 D收到基站发送的多子帧调度的上行 授权, 该上行授权指示 RN在子帧 Ul、 U2、 U3接收下行数据并分别以进程 1、 进程 2、 进程 3处理。 RN保留所述的多子帧调度的上行授权。 例如, 在 子帧 U1 , RN根据所述多子帧调度的上行授权发送数据并以进程 1处理首传。 步骤 S306: RN获取动态调度 (或半持久调度) 的调度信息, 所述调度 信息指示的下行(或上行) 传输与步骤 S304 中的多子帧调度的调度信息所 指示的下行 (或上行) 传输冲突, RN 按照随后描述的根据本发明实施例的 数据传输冲突的处理方法进行处理。
RN 获取动态调度的动态资源的方法可以包括: RN 根据 C-RNTI 在 R-PDCCH上获取的下行指配 (或者上行授权), 其中, 下行指配或上行授权 指示了相应的动态资源; 或者, RN被配置了用于非自适应重传的上行资源。
RN获取半持久调度的半持久资源的方法可以包括: RN根据 SPS C-RNTI 在 R-PDCCH上获取的下行指配(或者上行授权;), 其中, 下行指配或上行授 权指示了相应的动态资源; 或者, RN被配置了下行 SPS资源(或者上行 SPS 资源;); 或者, RN被配置了用于非自适应重传的上行资源。 在下行传输过程中, 上述的数据传输冲突指的是: 在当前的回程子帧上, RN 预先被配置使用下行多子帧调度指示的多子帧调度资源接收下行数据, 而且, 在该回程子帧上或在该回程子帧之前, RN 又获取动态调度或半持久 调度的调度信息, 该动态调度或半持久调度的调度信息指示了在上述的回程 子帧上用动态资源或半持久资源接收下行数据。 这样, RN 不知道使用多子 帧调度的资源还是使用动态调度或半持久调度指示的资源来进行接收下行数 据, 从而在当前的回程子帧上出现数据传输冲突的问题。 在上行传输过程中, 上述的数据传输冲突指的是: 在当前的回程子帧上,
RN 预先被配置使用上行多子帧调度指示的多子帧调度资源发送上行数据, 而且, 在该回程子帧上或在该回程子帧之前, RN 又获取动态调度或半持久 调度的调度信息, 该动态调度或半持久调度的调度信息指示了在上述的回程 子帧上用动态资源或半持久资源发送上行数据。 这样, RN 不知道使用多子 帧调度的资源还是使用动态调度或半持久调度指示的资源来进行发送上行数
据, 从而在当前的回程子帧上出现数据传输冲突的问题。 上述动态调度 (或者半持久调度) 的调度信息指示 RN接收下行数据或 者发送上行数据所用的 HARQ 进程可以是多子帧调度的调度信息中指示的 HARQ进程。 如: 在下行传输的场景中, 基站通过多子帧调度指示 RN在子 帧 Dl、 D2、 D3接收下行数据并分别以进程 1、 进程 2、 进程 3处理。 若在 子帧 D2之前, 基站收到了 RN的反馈, 表示 RN在 D1接收下行数据失败, 因此基站可能在子帧 D2调度这次失败的传输的重传,动态调度可以指示 RN 使用进程 1 (多子帧调度的调度信息中指示的进程之一)接收下行数据。 若 基站在子帧 D2配置了半持久资源用于 RN接收下行数据, 半持久调度中使 用的进程与子帧有一定的对应关系, 個—设子帧 D2对应使用的进程是进程 1 (多子帧调度的调度信息中指示的进程之一)。 作为本发明的另一种优选实施例,上述 HARQ进程也可以是多子帧调度 的调度信息中没有指示的 HARQ进程。 如: 在下行传输的场景中, 基站通过 多子帧调度指示 RN在子帧 Dl、 D2、 D3接收下行数据并分别以进程 1、 进 程 2、 进程 3处理。 若在子帧 D2基站临时有业务需要发送给 RN, 则动态调 度指示 RN使用进程 4 (多子帧调度中没有的进程)接收下行数据。 若基站 在子帧 D2配置了半持久资源指示 RN接收下行数据, 半持久调度中使用的 进程与子帧有一定的对应关系,假设子帧 D2对应使用的进程是进程 4 (多子 帧调度中没有的进程)。 在上行传输的场景中, 该动态调度 (或者半持久调度) 的调度信息可以 与下行传输类似。 下面结合附图来描述 居本发明实施例的数据传输冲突的处理方法。 在 上行传输或下行传输的过程, 假设在当前子帧出现了数据传输冲突。 实施例一 当多子帧调度和半持久调度出现数据传输冲突, 在出现冲突的回程子帧 上忽略半持久调度的下行指配(或上行授权:), 而根据多子帧调度的下行指配 接收下行数据(或根据多子帧调度的上行授权发送上行数据)。考虑到半持久 调度具有一定的周期性 (如典型周期 20ms ), 而多子帧调度是调度连续的多 个子帧, 两者继续冲突的可能性 4艮小, 因此, 保留半持久资源以及多子帧调 度资源用于后续的数据传输。
然后, 在回程子帧之后, 继续后续的多子帧调度, 即在位于当前回程子 帧之后的用于多子帧调度的子帧上, 根据多子帧调度的下行指配接收下行数 据 (或多子帧调度的上行授权发送上行数据)。 具体的, 对于下行传输而言, 如图 3所示: RN在子帧 D1接收并保留基站发送的多子帧调度的下行指配,该下行指 配指示 RN在子帧 Dl、 D2、 D3接收数据并分别以进程 1、 进程 2、 进程 3 处理, 例如, RN在子帧 D1根据多子帧调度的下行指配接收数据并以进程 1 处理。 在子帧 D2之前或在子帧 D2上, 基站为 RN配置并激活了半持久调度, 设置其周期为 20ms。 RN在子帧 D2上被配置了半持久下行资源, 指示 RN 在 D2接收数据并以进程 4进行处理, 而根据保留的多子帧调度的下行指配, RN在 D2要接收数据以进程 2处理, 也就是, 多子帧调度和半持久调度在子 帧 D2上出现数据传输冲突。 此时 RN根据多子帧调度处理, 即接收数据以 进程 2处理, 忽略半持久调度指示的数据接收。 RN保留半持久资源和多子 帧调度资源。
RN 在 D3 根据保留的多子帧调度的下行指配接收下行数据并以进程 3 处理。 此时多子帧调度结束, 保留的半持久资源指示的数据传输不再与本次 多子帧调度冲突。 具体的, 对于上行传输而言, 如图 4所示: RN在子帧 D接收到基站发送的多子帧调度的上行授权, 该上行授权指 示: RN在子帧 Ul、 U2、 U3接收下行数据并分别以进程 1、 进程 2、 进程 3 处理; RN保留所述的多子帧调度的上行授权; 在子帧 U2之前, 基站为 RN配置并激活了半持久调度, 设置其周期为 20ms„ RN在子帧 U2被配置了半持久下行资源, 指示在子帧 U2上发送数据 并以进程 4处理, 而根据保留的多子帧调度的上行授权, RN在 U2要发送数 据以进程 2处理, 也就是, 多子帧调度和半持久调度在子帧 U2上出现数据 传输冲突。 此时 RN 居多子帧调度处理, 即发送数据以进程 2处理, 忽略 半持久调度指示的数据发送。 RN保留半持久资源和多子帧调度资源。
RN 在 U3 根据保留的多子帧调度的上行授权发送上行数据并以进程 3
处理。 此时多子帧调度结束, 保留的半持久资源指示的数据传输不再与本次 多子帧调度冲突。 作为本发明的另一种优选的实施例, RN 也可以清除半持久资源, 如发 生冲突表示半持久调度是不成功的。 作为本发明的另一种优选的实施例, RN 也可以清除多子帧调度资源, 如基站为 RN分配半持久资源隐含表示要求终止多子帧调度。 如图 5和图 6 所示, RN在冲突的子帧 D2或 U2上根据多子帧调度资源接收或者发送数据 之后, 清除多子帧调度资源, 在位于冲突的回程子帧子后的回程子帧上, 例 如 D3或 U3 , 不继续 居本次多子帧调度处理。 作为本发明的另一种优选的实施例, RN 在冲突的子帧也可以 居半持 久资源接收或者发送数据, 如基站分配半持久资源是希望 RN立刻根据半持 久资源接收或者发送数据。 作为本发明的另一种优选的实施例, RN 在冲突 的子帧也可以不^任何处理。 作为本发明的另一种优选的实施例, 半持久调度指示接收下行数据或发 送上行数据的进程可以包括: 多子帧调度指示的进程 (如进程 1 , 如图 7和 图 8所示; 进程 2、 进程 3 ), 或其他进程 (如进程 4 )。 作为本发明的另一种优选的实施例,在冲突的子帧 D2或者 U2上使用半 持久资源但保留多子帧调度资源时, 在后续的多子帧调度指示的子帧 D3或 者 U3上用到的 HARQ进程可以是该子帧对应的 HARQ进程(例如,进程 3 ), 还可以是延用与出现冲突的回程子帧 D2或 U2对应的 HARQ进程 (例如, 进程 2 )。 在冲突的子帧上, RN 使用半持久资源、 或是使用多子帧调度资源、 或 不做任何处理; RN是否要保留半持久资源、 RN是否要保留多子帧调度资源、 使用半持久资源时用到的 HARQ进程是否是多子帧调度中指示的进程、在冲 突的子帧上不使用多子帧调度资源但保留多子帧调度资源时在后续的多子帧 调度指示的子帧上用到的 HARQ进程是该子帧对应的 HARQ进程还是延用 冲突子帧对应的 HARQ 进程, 以上任意组合都可以作为本发明的优选实施 例, 在此不再赞述。 上述导致冲突的场景除了接收基站分配的半持久资源, 也可以是如下情 况: RN接收到的半持久调度资源与多子帧调度资源指示 RN在同一个子帧
接收 /发送数据。 这里, 上述半持久资源指示的是指示首传的资源。 实施例二 当多子帧调度和动态调度出现数据传输冲突, 在出现冲突的回程子帧忽 略所述多子帧调度的下行指配(或上行授权:), 而根据动态调度的下行指配接 收下行数据 (或根据动态调度的上行授权发送上行数据)。 由于动态调度仅分 配用于一个子帧的资源,对后续的子帧没有影响, 不会造成后续子帧的冲突, 因此, 保留多子帧调度资源用于后续子帧的数据传输。 然后, 在回程子帧之后, 继续后续的多子帧调度, 即在位于当前回程子 帧之后的用于多子帧调度的子帧上, 根据多子帧调度的下行指配接收下行数 据 (或多子帧调度的上行授权发送上行数据)。 具体的, 对于下行传输而言, 如图 9所示:
RN在子帧 D1接收并保留基站发送的多子帧调度的下行指配,该下行指 配指示 RN在子帧 Dl、 D2、 D3接收数据并分别以进程 1、 进程 2、 进程 3 处理, 例如, RN在子帧 D1根据多子帧调度的下行指配接收数据并以进程 1 处理。
RN在子帧 D2上接收到基站发送的动态调度的下行指配,该下行指配指 示 RN在 D2接收数据并以进程 1进行处理, 而根据保留的多子帧调度的下 行指配, RN在 D2要接收数据以进程 2处理, 也就是, 多子帧调度和动态调 度在子帧 D2上出现数据传输冲突。 此时 RN根据动态调度处理, 即接收数 据以进程 1处理, 忽略多子帧调度指示的数据接收。 动态调度指示可以是首 传, 也可以是重传。 RN保留多子帧调度资源。
RN 在 D3 根据保留的多子帧调度的下行指配接收下行数据并以进程 3 处理。 作为本发明的一种优选的实施例, 由于 RN在子帧 D2没有使用多子 帧调度指示的进程 2, 因此 RN在 D3也可以延用这一个进程, 即在 D3接收 下行数据并以进程 2处理。 具体的, 对于上行传输而言, 如图 10所示:
RN在子帧 D接收到基站发送的多子帧调度的上行授权, 该上行授权指
示: RN在子帧 Ul、 U2、 U3接收下行数据并分别以进程 1、 进程 2、 进程 3 处理; RN保留所述的多子帧调度的上行授权;
RN在子帧 U2之前接收到基站发送的动态调度的上行授权,该上行授权 指示: 在子帧 U2上发送数据并以进程 1处理, 而 居保留的多子帧调度的 上行授权, RN在 U2要发送数据以进程 2处理, 也就是, 多子帧调度和动态 调度在子帧 U2上出现数据传输冲突。 此时 RN根据动态调度处理, 即发送 数据以进程 1处理, 忽略多子帧调度指示的数据发送。 动态调度指示可以是 首传, 也可以是重传。 RN保留多子帧调度资源。
RN在 U3根据保留的多子帧调度的上行授权的资源发送上行数据并以进 程 3处理。 作为本发明的一种优选的实施例, 由于 RN在子帧 U2没有使用 多子帧调度指示的进程 2, 因此 RN在 U3也可以延用这一个进程, 即在 U3 发送上行数据并以进程 2处理。 作为本发明的一种优选的实施例, 也可以认为基站为 RN分配动态资源 隐含表示要求终止多子帧调度, 因此, 如图 11和图 12所示, 在 RN在冲突 的子帧 D2或 U2上使用动态资源接收或者发送数据之前或者之后清除多子帧 调度资源, 在子帧 D3或 U3上不继续根据本次多子帧调度处理。 作为本发明的一种优选的实施例, 也可以认为动态调度不应当出现在多 子帧调度中, 即在冲突的子帧忽略动态调度指示的资源, 而是根据多子帧调 度指示的资源接收或者发送数据。 相应的, 在 RN在冲突的子帧 D2或 U2上 使用多子帧调度资源接收或者发送数据,在子帧 D3或者 U3继续根据多子帧 调度处理。 作为本发明的一种优选的实施例, RN 在冲突的子帧也可以不故 任何处理。 上述导致冲突的场景除了接收基站分配的动态资源,也可以是如下情况: 在上行动态调度中, 非自适应重传的资源与多子帧调度资源指示 RN在同一 个子帧发送数据。 这里, 上述动态资源可以是指示首传的资源, 也可以是指示自适应重传 的资源, 也可以是指示非自适应重传的资源。 动态调度指示接收或发送数据的进程除了多子帧调度指示的进程,(如进 程 1、 进程 2、 进程 3), 也可以是多子帧调度指示的进程之外的进程, 如进 程 4 (如图 13和图 14所示)。
在冲突的子帧上, RN 使用动态资源、 或是使用多子帧调度资源、 或不 做任何处理; RN是否要保留多子帧调度资源、使用动态资源时用到的 HARQ 进程是否是多子帧调度中指示的进程、 在冲突的子帧上不使用多子帧调度资 源但保留多子帧调度资源时在后续的多子帧调度指示的子帧上用到的 HARQ 进程是该子帧对应的 HARQ进程还是延用冲突子帧对应的 HARQ进程, 以 上任意组合都可以作为本发明的优选实施例, 在此不再赞述。 上述流程中, RRC信令指定 UE或指定 RN的专用信令, 可以是在现有 RRC信令(如 RRC连接重配消息 ) 中增加指示信息 (如下行 backhaul子帧 的配置信息、 上行 backhaul子帧的配置信息、 RN专用的 HARQ时序、 子帧 与 process id的对应关系、 多子帧调度专用的 RNTI、 子帧个数等 ) 的字段, 或引入新的用于传递所述指示信息的 RRC信令。其中,可以通过同一条 RRC 信令, 或者通过多条不同的 RRC信令传输所述指示信息。 根据本发明, 在多子帧调度与动态调度出现数据传输冲突, 或者多子帧 调度与半持久调度出现数据传输冲突的情况下, RN 根据多子帧调度、 动态 调度或半持久调度使用相应的资源进行数据传输, 从而解决了数据传输的冲 突问题, 实现正常传输。 根据本发明的实施例, 提供了一种中继节点 RN的数据传输冲突的处理 装置, 应用于在回程子帧上上述 RN被配置有多子帧调度资源的场景。 如图 15所示, 该装置包括: 获取模块 1502, 用于在上述回程子帧上获 取得到动态资源或半持久资源; 第一处理模块 1504, 用于在上述回程子帧上 获取得到上述动态资源的情况下, 在上述回程子帧上使用上述多子帧调度资 源或者上述动态资源来接收或者发送数据, 或者不故任何处理; 第二处理模 块 1506, 用于在上述回程子帧上获取得到上述半持久资源的情况下, 在上述 回程子帧上使用上述多子帧调度资源或者上述半持久资源来接收或者发送数 据, 或者不 ^故任何处理。 作为本发明的另一种实施例, 在上述获取得到动态资源的情况下, 除了 上述的获取模块 1502、 第一处理模块 1504和第二处理模块 1506之外, 上述 装置还可以进一步包括: 第三处理模块 1508, 用于在上述回程子帧上使用上 述多子帧调度资源接收或者发送数据之后, 清除上述多子帧调度资源; 第四 处理模块 1510, 用于在上述回程子帧上使用上述多子帧调度资源接收或者发 送数据之前或者之后, 保留上述多子帧调度资源; 第五处理模块 1512 , 用于
在上述回程子帧上使用上述动态资源接收或者发送数据之前或者之后, 清除 或保留上述多子帧调度资源。 作为本发明的又一种实施例, 在上述获取得到半持久资源的情况下, 除 了上述的获取模块 1502、 第一处理模块 1504和第二处理模块 1506之外, 上 述装置还可以进一步包括(如图 15中的虚线所示): 第六处理模块 1514, 用 于在上述回程子帧上使用上述多子帧调度资源接收或者发送数据之后, 清除 上述多子帧调度资源; 第七处理模块 1516, 用于在上述回程子帧上使用上述 多子帧调度资源接收或者发送数据之前或者之后,保留上述多子帧调度资源; 第八处理模块 1518, 用于在上述回程子帧上使用上述半持久资源接收或者发 送数据之前或者之后, 清除或保留上述多子帧调度资源。 进一步, 在上述获取得到半持久资源的情况下, 上述装置还可以包括: 第九处理模块 1520, 用于在上述回程子帧上使用上述多子帧调度资源接收或 者发送数据之前或者之后,清除或保留上述半持久资源;第十处理模块 1522, 用于在上述回程子帧上使用上述半持久资源接收或者发送数据之后, 清除上 述半持久资源; 第十一处理模块 1524, 用于在上述回程子帧上使用上述半持 久资源接收或者发送数据之前或者之后, 保留上述半持久资源。 根据本发明, 在多子帧调度与动态调度出现数据传输冲突, 或者多子帧 调度与半持久调度出现数据传输冲突的情况下, RN 根据多子帧调度、 动态 调度或半持久调度使用相应的资源进行数据传输, 从而解决了数据传输的冲 突问题, 实现正常传输。 需要说明的是, 在附图的流程图示出的步骤可以在诸如一组计算机可执 行指令的计算机系统中执行, 并且, 虽然在流程图中示出了逻辑顺序, 但是 在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤。 显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 或 者将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制 作成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软 件结合。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领 i或的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的 ^"神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。
Claims
1. 一种中继节点 RN的数据传输冲突的处理方法, 其特征在于, 在回程子 帧上所述 RN被配置有多子帧调度资源, 所述方法包括:
如果在所述回程子帧上所述 RN获取得到动态资源, 则所述 RN在 所述回程子帧上使用所述多子帧调度资源或者所述动态资源来接收或者 发送数据, 或者不故任何处理;
如果在所述回程子帧上所述 RN获取得到半持久资源, 则所述 RN 在所述回程子帧上使用所述多子帧调度资源或者所述半持久资源来接收 或者发送数据, 或者不故任何处理。
2. 根据权利要求 1所述的方法, 其特征在于, 所述 RN获取得到动态资源 包括:
在所述回程子帧上或所述回程子帧之前, 所述 RN通过小区-无线网 络临时标识 C-RNTI或所述 RN专用的 C-RNTI在所述 RN专用的物理下 行控制信道 R-PDCCH上检测得到所述动态资源。
3. 居权利要求 1所述的方法, 其特征在于, 在所述 RN发送数据的情况 下, 所述 RN获取得到动态资源包括:
在所述回程子帧上, 所述 RN被配置有用于非自适应重传的动态资 源, 用于指示 RN在所述回程子帧发送数据。
4. 根据权利要求 1所述的方法, 其特征在于, 所述 RN获取得到半持久资 源包括:
在所述回程子帧上或所述回程子帧之前, 所述 RN通过半持久调度 小区 -无线网络临时标识 SPS C-RNTI或所述 RN专用的 SPS C-RNTI在 所述 RN专用的物理下行控制信道 R-PDCCH上检测得到所述半持久资 源; 或者
在所述回程子帧上, 所述 RN被配置有半持久资源。
5. 根据权利要求 1至 3 中任一项所述的方法, 其特征在于, 在所述 RN获 取得到动态资源的情况下, 所述方法还包括: 在所述回程子帧上, 所述 RN使用所述多子帧调度资源接收或者发 送数据之后, 所述 RN清除所述多子帧调度资源; 或者
在所述回程子帧上, 所述 RN使用所述多子帧调度资源接收或者发 送数据之前或者之后, 所述 RN保留所述多子帧调度资源; 或者
在所述回程子帧上, 所述 RN使用所述动态资源接收或者发送数据 之前或者之后, 所述 RN清除或保留所述多子帧调度资源。
6. 根据权利要求 5所述的方法, 其特征在于, 所述 RN使用所述动态资源, 且所述 RN保留所述多子帧调度资源的情况下, 所述方法还包括:
在位于所述回程子帧之后的由多子帧调度指示的下一个回程子帧 上, 所述 RN 使用与所述下一个回程子帧对应的混合自动重传请求 HARQ进程, 或者所述 RN使用与所述回程子帧对应的 HARQ进程。
7. 根据权利要求 1或 4所述的方法, 其特征在于, 在所述 RN获取得到半 持久资源的情况下, 所述方法还包括:
在所述回程子帧上, 所述 RN使用所述多子帧调度资源接收或者发 送数据之后, 所述 RN清除所述多子帧调度资源; 或者
在所述回程子帧上, 所述 RN使用所述多子帧调度资源接收或者发 送数据之前或者之后, 所述 RN保留所述多子帧调度资源; 或者
在所述回程子帧上, 所述 RN使用所述半持久资源接收或者发送数 据之前或者之后, RN清除或保留所述多子帧调度资源。
8. 根据权利要求 7所述的方法, 其特征在于, 所述方法还包括:
在所述回程子帧上, 所述 RN使用所述多子帧调度资源接收或者发 送数据之前或者之后, RN清除或保留所述半持久资源; 或者
在所述回程子帧上, 所述 RN使用所述半持久资源接收或者发送数 据之后, RN清除所述半持久资源; 或者
在所述回程子帧上, 所述 RN使用所述半持久资源接收或者发送数 据之前或者之后, RN保留所述半持久资源。
9. 根据权利要求 7所述的方法, 其特征在于, 所述 RN使用所述半持久资 源, 且所述 RN保留所述多子帧调度资源的情况下, 所述方法还包括: 在位于所述回程子帧之后的由多子帧调度指示的下一个回程子帧 上, 所述 RN使用与所述下一个回程子帧对应的 HARQ进程, 或者所述 RN使用与所述回程子帧对应的 HARQ进程。
10. 根据权利要求 1所述的方法, 其特征在于, 所述 RN使用动态资源或者 半持久资源接收或者发送数据包括:
RN通过混合自动重传 HARQ进程使用所述动态资源或者所述半持 久资源进行接收或者发送数据, 其中, 所述 HARQ进程包括: 多子帧调 度指示的 HARQ进程之一, 或者是多子帧调度未指示的 HARQ进程。
11. 根据权利要求 1所述的方法, 其特征在于, 所述多子帧调度资源指的是 基站分配给所述 RN的资源, 用于指示所述 RN在连续的多个下行回程 子帧上接收数据或者在连续的多个上行回程子帧上发送数据。
12. 一种中继节点 RN的数据传输冲突的处理装置, 其特征在于, 在回程子 帧上所述 RN被配置有多子帧调度资源, 所述处理装置包括:
获取模块,用于在所述回程子帧上获取得到动态资源或半持久资源; 第一处理模块, 用于在所述回程子帧上获取得到所述动态资源的情 况下, 在所述回程子帧上使用所述多子帧调度资源或者所述动态资源来 接收或者发送数据, 或者不 ^故任何处理;
第二处理模块, 用于在所述回程子帧上获取得到所述半持久资源的 情况下, 在所述回程子帧上使用所述多子帧调度资源或者所述半持久资 源来接收或者发送数据, 或者不故任何处理。
13. 根据权利要求 12所述的装置, 其特征在于, 在所述获取得到动态资源的 情况下, 所述装置还包括:
第三处理模块, 用于在所述回程子帧上使用所述多子帧调度资源接 收或者发送数据之后, 清除所述多子帧调度资源;
第四处理模块, 用于在所述回程子帧上使用所述多子帧调度资源接 收或者发送数据之前或者之后, 保留所述多子帧调度资源;
第五处理模块, 用于在所述回程子帧上使用所述动态资源接收或者 发送数据之前或者之后, 清除或保留所述多子帧调度资源。
14. 根据权利要求 12所述的装置, 其特征在于, 在所述获取得到半持久资源 的情况下, 所述装置还包括:
第六处理模块, 用于在所述回程子帧上使用所述多子帧调度资源接 收或者发送数据之后, 清除所述多子帧调度资源;
第七处理模块, 用于在所述回程子帧上使用所述多子帧调度资源接 收或者发送数据之前或者之后, 保留所述多子帧调度资源;
第八处理模块, 用于在所述回程子帧上使用所述半持久资源接收或 者发送数据之前或者之后, 清除或保留所述多子帧调度资源。
15. 根据权利要求 14所述的装置, 其特征在于, 在所述获取得到半持久资源 的情况下, 所述装置还包括:
第九处理模块, 用于在所述回程子帧上使用所述多子帧调度资源接 收或者发送数据之前或者之后, 清除或保留所述半持久资源;
第十处理模块, 用于在所述回程子帧上使用所述半持久资源接收或 者发送数据之后, 清除所述半持久资源;
第十一处理模块, 用于在所述回程子帧上使用所述半持久资源接收 或者发送数据之前或者之后, 保留所述半持久资源。
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US8706129B2 (en) | 2008-10-30 | 2014-04-22 | Htc Corporation | Method of improving semi-persistent scheduling resources reconfiguration in a wireless communication system and related communication device |
CN102598818B (zh) * | 2009-08-14 | 2016-06-01 | 诺基亚技术有限公司 | 在中继系统中指示下行链路/上行链路回程子帧配置的灵活方式 |
CN102651662B (zh) * | 2011-02-23 | 2015-04-08 | 华为技术有限公司 | 信息传输的方法和装置 |
CN102201859B (zh) * | 2011-06-03 | 2013-10-02 | 电信科学技术研究院 | 一种数据传输的方法及装置 |
CN103873214B (zh) * | 2012-12-14 | 2017-12-19 | 电信科学技术研究院 | 一种数据传输方法及装置 |
US20140241272A1 (en) * | 2013-02-25 | 2014-08-28 | Qualcomm Incorporated | Interface between low power node and macro cell to enable decoupled uplink and downlink communication |
WO2016164084A1 (en) * | 2015-04-09 | 2016-10-13 | Intel Corporation | Resolving concurrent communications at a relay user equipment (ue) |
WO2017014427A1 (en) * | 2015-07-20 | 2017-01-26 | Lg Electronics Inc. | Method for receiving a signal in wireless communication system and a device therefor |
CN109327884B (zh) * | 2017-07-31 | 2021-02-12 | 华为技术有限公司 | 通信方法、网络设备和中继设备 |
BR112021006140A2 (pt) | 2019-05-09 | 2021-11-16 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Método e dispositivo de configuração de recurso |
CN110536466A (zh) * | 2019-08-16 | 2019-12-03 | 中兴通讯股份有限公司 | 数据传输方法、装置和系统 |
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