CN101873642A - Method and device for reporting transmission buffering state of relay node - Google Patents
Method and device for reporting transmission buffering state of relay node Download PDFInfo
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- CN101873642A CN101873642A CN200910082685A CN200910082685A CN101873642A CN 101873642 A CN101873642 A CN 101873642A CN 200910082685 A CN200910082685 A CN 200910082685A CN 200910082685 A CN200910082685 A CN 200910082685A CN 101873642 A CN101873642 A CN 101873642A
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Abstract
The embodiment of the invention discloses a method for avoiding a relay node losing data, relay equipment and base station. The method comprises that: a relay receives resource configuration information which is sent by the base station for transmitting an uplink and/or downlink buffering state report; and the relay transmits the uplink and/or downlink buffering state report by using resources configured in the base station. The contents of the uplink buffering state report comprise the current data volume, which is not transmitted to the base station, of the relay; and the contents of the downlink buffering state report comprises the current data volume, which is not transmitted to a relay terminal user, of the relay. When the method and the device are used, the relay can transmit the buffering state reports to an eNB.
Description
Technical field
The present invention relates to the mobile communication technology field, relate in particular to a kind of method and apparatus of via node reporting transmission buffering state.
Background technology
Long Term Evolution (Long Term Evolution, LTE) system is the evolution system of 3-G (Generation Three mobile communication system) (3GPP), advanced long-term evolution system (LTE-Advanced) is the upgraded version of LTE system.In the LTE-Advanced system, will introduce relaying (Relay) node, be used to improve the service quality and the Extended Cell coverage of Cell Edge User.
In the LTE-Advanced system, about how utilizing Relay node transmission data, studying at present and the discussion process in.From the progress of present research and discussion, transmission manner is transmitted data the Relay node adopts half-duplex and is with in the LTE-Advanced system in.So-called half-duplex is meant the operation that the Relay node can not be received simultaneously and send out on same frequency; In the so-called band, be meant that the transfer of data between transfer of data and eNB and Macro UE and Relay and the Relay-UE between base station (eNB) and the Relay uses identical frequency resource, wherein, in the LTE-Advanced system that has introduced the Relay node (hereinafter referred Relay network), the UE that is directly served by eNB is called Macro UE, and the UE that is directly served by Relay is called Relay UE.
Fig. 1 is the frame structure schematic diagram in the Relay network, and as shown in Figure 1, this frame structure can be divided into as lower area:
Descending access zone: in this zone, eNB and RN send data to Macro UE and Relay UE respectively.
The down mixing zone: in this zone, eNB sends data to RN and Macro UE.
Up access zone: in this zone, Macro UE and Relay UE send data to eNB and RN respectively.
Up Mixed Zone: in this zone, Macro UE and RN send data to eNB.
In order to make the Relay network can compatible Rel-8UE, promptly keep Relay UE to use identical frame structure with Macro UE, Relay network using Multicast Broadcast Single Frequency Network (Multicast Broadcast Single Frequency Network, MBSFN) mode of subframe realizes the transfer of data of repeated link, and this scheme is as follows:
In up Mixed Zone, promptly RN is when eNB sends data, and Relay UE mourns in silence, and does not promptly transmit any upward signal; In the down mixing zone, be that eNB is when RN sends data, the frame structure of Relay is configured to the MBSFN subframe, promptly in this MBSFN subframe, dispose 1 or 2 OFDM (Orthogonal Frequency-Division Multiplexing, OFDM) the descending control signaling zone of symbol, be used for Relay and send descending control signaling to the UE of its service, and when Relay sends described descending control signaling, Relay can not receive and come from signal of base station, after described MBSFN sub-frame configuration is finished, Relay receives the repeated link data that send the base station, and Relay is when receiving described repeated link data, and this Relay does not send data to the UE of its service.In the down mixing zone, it is that transmit the multiplexing data area of together passing through the MBSFN subframe that base station transmits is given the repeated link data of Relay and control signaling.
In the down link of Relay network, Relay need at first receive the data of eNB, and then gives UE with the data forwarding that receives, and at this moment, the effect of Relay node in the Relay network is equivalent to buffer (buffer).Because eNB is different usually to the channel quality of UE with Relay to the channel quality of Relay, perhaps owing to other reasons, Relay may not be in time with this UE of data forwarding from eNB, and therefore, Relay may stockpile the data from eNB.For considerations such as assurance communication qualities; Relay need be to the eNB reporting transmission buffering state; otherwise can cause adverse consequences; for example; to such an extent as to the data from eNB that stockpile as Relay are more when surpassing the memory capacity of Relay; if do not take the corresponding protection measure, can cause the Relay obliterated data, thereby have a strong impact on communication quality.
Similarly, in the up link of Relay network, Relay need at first receive the data of UE, and then gives eNB with the data forwarding that receives, and at this moment, the effect of Relay node in the Relay network is equivalent to buffer.Because UE is different usually to the channel quality of eNB with Relay to the channel quality of Relay, perhaps because UE is more to the transmission opportunity of eNB than Relay to the transmission opportunity of Relay, perhaps owing to other reasons, Relay may not give eNB with the data forwarding from UE in time.Therefore, Relay may stockpile the data from UE.For considerations such as assurance communication qualities; Relay need be to the eNB reporting transmission buffering state; otherwise can cause adverse consequences; for example; to such an extent as to the data from UE that stockpile as Relay are more when surpassing the memory capacity of Relay; if do not take the corresponding protection measure, also can cause the Relay obliterated data, thereby have a strong impact on communication quality.
At present, how still there is not the corresponding techniques scheme about Relay to the eNB reporting transmission buffering state.
Summary of the invention
In view of this, the purpose of the embodiment of the invention is to provide a kind of method and apparatus of via node reporting transmission buffering state, so that Relay to be provided the specific implementation to the eNB reporting transmission buffering state.
For achieving the above object, the technical scheme of the embodiment of the invention specifically is achieved in that
The method of a kind of via node (Relay) reporting transmission buffering state, this method comprises:
Relay receives the resource allocation information that is used to transmit up buffer status report that the base station gives;
Relay sends up buffer status report on the resource of base station configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
The method of a kind of via node (Relay) reporting transmission buffering state, this method comprises:
The base station sends the resource allocation information that is used to transmit up buffer status report to Relay;
The base station receives the up buffer status report that Relay sends on to the described resource of Relay configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
The device of a kind of via node (Relay), this device comprises:
Receiving element one is used to receive the resource allocation information that is used to transmit up buffer status report that the base station gives;
Transmitting element one is used for sending up buffer status report on the resource of base station configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
A kind of device of base station, this device comprises:
Transmitting element one is used for sending the resource allocation information that is used to transmit up buffer status report to Relay;
Receiving element one is used for receiving the up buffer status report that Relay sends on to the described resource of Relay configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
As seen from the above technical solution, among the present invention, the Relay node receives the resource allocation information that is used to transmit up buffer status report that the base station gives, on the resource of base station configuration, send up buffer status report, wherein, the content of described up buffer status report includes but not limited to the existing data volume that does not send to the base station of Relay.Therefore, the invention provides the specific implementation of Relay to the eNB reporting transmission buffering state, and, because the content of buffer status report comprises the existing data volume that does not send to base station or Relay terminal use of Relay node, therefore, Relay can make the data volume state in base station or the Relay node by to the above-mentioned buffer status report of base station transmits, utilizes above-mentioned buffer status report to dispatch accordingly.
Description of drawings
Fig. 1 is the frame structure schematic diagram in the Relay network.
Fig. 2 is the method flow diagram of the Relay of avoiding node loss data provided by the invention.
Fig. 3 is the composition schematic diagram of trunking provided by the invention.
Fig. 4 is the composition schematic diagram of base station provided by the invention.
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is described in more detail.
In embodiments of the present invention, the resource that is used to transmit up and/or downlink buffering state report by using by the base station for the Relay node configuration, and resource allocation information is notified to the Relay node, the Relay node sends up and/or downlink buffering state report by using on the resource of base station configuration.
Wherein, via node can periodically send/downlink buffering state report by using, can and be notified to via node by base station assigns about the configuration information in described cycle.
In addition, via node also can send to triggering property the up and/or downlink buffering state report by using of single.
Wherein, described single triggers and can be initiated by the base station.Particularly, be used to transmit the time slot of up and/or downlink buffering state report by using, and described time slot is notified to via node by base station assigns; Perhaps, how base station and via node triggers via node and sends described up and/or downlink buffering state report by using if being made an appointment, for example, the base station need send/downlink buffering state report by using at time slot n notice via node, via node in time slot n+k transmission/downlink buffering state report by using.N wherein and k are natural numbers.
Described single triggers and also can independently be initiated by via node, for example, when via node reaches predetermined state at the memory space of self, triggers the transmission of up and/or downlink buffering state report by using.
Via node is sending on ascending control channel or the uplink data channels/downlink buffering state report by using; Be used to transmit/resource of downlink buffering state report by using can be by base station decision and notice via node.
Via node sends the resource of the resource of up buffer status report and downlink buffering state report by using can identical or also can be different.
Up buffer status report and downlink buffering state report by using can send or the absolute coding transmission by combined coding.
Fig. 2 is the method flow diagram of Relay node reporting transmission buffering state provided by the invention, and as shown in Figure 2, this method comprises:
In this step, the content of described up buffer status report includes but not limited to the existing data volume that does not send to the base station of Relay, and the content of described downlink buffering state report by using includes but not limited to the existing Relay of the not sending to terminal use's of Relay data volume.
Step 202, Relay sends up and/or downlink buffering state report by using on the resource of base station configuration.
In the step 201 of method shown in Figure 2, the resource that Relay is used to transmit up buffer status report can be identical with the resource of downlink buffering state report by using, then correspondingly, in step 202, Relay transmits up buffer status report and downlink buffering state report by using by combined coding on described identical resource.
In the described step 201, the resource allocation information that Relay is used to transmit up and/or downlink buffering state report by using comprises a resource on ascending control channel or the uplink data channels, then correspondingly, in step 202, Relay uses the up and/or downlink buffering state report by using of the resource transmission of described ascending control channel or uplink data channels.
In the described step 201, the resource allocation information that Relay is used to transmit up and/or downlink buffering state report by using can further include the set of a transmission time slot, transmission time slot in this set is the cycle, then correspondingly, in step 202, send up and/or downlink buffering state report by using on the time slot of Relay in described transmission time slot set.
In the described step 201, the resource allocation information that Relay is used to transmit up and/or downlink buffering state report by using can also comprise a transmission time slot, then correspondingly, in step 202, Relay transmits up and/or downlink buffering state report by using on a described transmission time slot.
Among the present invention, can also trigger the trigger condition that this Relay node reports the memory space state of self for the Relay node configuration.
Described trigger condition can be disposed by network side, and the trigger condition information of configuration is issued the Relay node, also can self be disposed by the Relay node.
When disposing described trigger condition by network side, can be by eNB configuration cycle trigger condition, relevant configuration information comprise but be not limited to the Relay node report the cycle of described memory space state, constantly, frequency resource information etc., wherein, the described moment is meant that the Relay node reports the subframe that described memory space state adopted or the set of subframe.ENB can send to the Relay node with these configuration informations by high-level signaling.After the Relay node is received corresponding configuration information, report the memory space state of this Relay node self according to the indication of this configuration information.
With described trigger condition be configured to the periodic triggers condition be because, in the Relay network, because the Relay node may receive the downlink data of a plurality of UE from eNB, also may give eNB the transmitting uplink data of receiving a plurality of UE, therefore, the Relay node need report the memory space state to eNB more continually.
When self disposing described trigger condition by the Relay node, described trigger condition can be configured to Time Triggered conditioned disjunction trigger conditions, for example, be configured to trigger, trigger when perhaps being configured to the occupied certain proportion of memory space when Relay node self at particular point in time.
Among the present invention, in the process of transmitting downlink data, the Relay node reports downlink data to take the state of this Relay node storage space by downlink buffering state report by using (DL buffer status report) message to eNB; In the process of transmit ascending data, the Relay node is by the state of up buffer status report (UL buffer status report) message to this Relay node storage space of eNB reporting uplink data occupancy.
Wherein, the Relay node can utilize ascending control channel or uplink data channels to report described memory space state, promptly utilizes ascending control channel or uplink data channels to send DL buffer status report message and/or UL buffer status report message to eNB.
Among the present invention, when eNB dispatches in up-downgoing, can utilize the buffer status report of via node.
For example, eNB receives after the Relay node sends DL buffer status report message, when eNB judges downlink data that this Relay node reports and takies the memory space state and reach predetermined state according to this DL buffer status report message, when for example memory space had been expired, eNB stopped to send downlink data to this Relay node.
Again for example, eNB receives after the Relay node sends UL buffer status report message, when eNB judges upstream data that this Relay node reports and takies the memory space state and reach predetermined state according to this UL buffer status report message, when for example memory space has been expired, eNB dispatches this Relay node and uploads upstream data, do not have upstream data will send this eNB to if eNB judges this Relay node, then this eNB can no longer dispatch the resource of distributing uplink to relay.
The length of DL buffer status report message and UL buffer status report message is usually about 10 to 20 bits, specifically can be 8 bits, also can be 24 bits, or other length, every DL buffer status report message or UL buffer status report message are carried by a MAC PDU usually, perhaps also can be carried among a plurality of MAC PDU.
DL buffer status report message and UL buffer status report message can be carried among the MAC PDU and send to eNB simultaneously, also can be carried at respectively among the different MAC PDU and issue eNB respectively.
Because the length of DL buffer status report message and UL buffer status report message is usually about 10 to 20 bits, therefore, the Relay node can send DL buffer status report message and/or UL buffer status report message to eNB by ascending control channel, and ascending control channel wherein for example can be the PUCCH channel in the 3GPP LTE system.If the Relay node sends DL buffer status report message and/or UL buffer status report message by the PUCCH channel to eNB, then the Relay node can utilize the form of PUCCH form 2 in the 3GPP LTE system (format 2) to send described message, particularly, a plurality of Relay upward issue eNB with described message by the mode of code division multiplexing (CDM) at identical Resource Block (resource block).A plurality of Relay can also issue eNB with described message by the mode of frequency division multiplexing (FDM) or CDM and FDM mixing on same resource block.Wherein, the radio bearer (RB) that eNB notifies Relay to send described message by high-level signaling, and the information of relevant CDM and/or FDM.Relay can send data simultaneously when sending DL buffer status report message and/or UL buffer status report message to eNB.For example, when Relay sends DL buffer status report message and/or UL buffer status report message on PUCCH, on PUSCH, send data to eNB.
Fig. 3 is the composition schematic diagram of trunking provided by the invention, and as shown in Figure 3, this trunking comprises receiving element 1 and transmitting element 1.
Receiving element 1 is used to receive the resource allocation information that is used to transmit up buffer status report that the base station gives.
Transmitting element 1 is used for sending up buffer status report on the resource of base station configuration.
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
This trunking can further include receiving element two and transmitting element two.
Receiving element two is used to receive the resource allocation information that is used to transmit downlink buffering state report by using that the base station gives.
Transmitting element two is used for sending downlink buffering state report by using on the resource of base station configuration.
The content of described downlink buffering state report by using comprises the existing Relay of the not sending to terminal use's of Relay data volume.
The content of described downlink buffering state report by using comprises the existing Relay of the not sending to terminal use's of Relay data volume.
Wherein, the resource that is used to transmit up buffer status report is identical with the resource of downlink buffering state report by using; Up buffer status report sends by combined coding on described identical resource with downlink buffering state report by using.
The resource allocation information that is used to transmit up and/or downlink buffering state report by using comprises a resource on ascending control channel or the uplink data channels; Up and/or downlink buffering state report by using sends in the resource of described ascending control channel or uplink data channels.
The resource allocation information that is used to transmit up and/or downlink buffering state report by using further comprises the set of a transmission time slot, and the transmission time slot in this set is the cycle; Send on the up and/or downlink buffering state report by using time slot in described transmission time slot set.
The resource allocation information that is used to transmit up and/or downlink buffering state report by using comprises a transmission time slot; Up and/or downlink buffering state report by using sends on a described transmission time slot.
Fig. 4 is the composition schematic diagram of base station provided by the invention, and as shown in Figure 4, this base station comprises transmitting element 401 and receiving element 402.
Transmitting element 401 is used for sending the resource allocation information that is used to transmit up and/or downlink buffering state report by using to Relay.
Receiving element 402 is used for receiving the up and/or downlink buffering state report by using that Relay sends on to the described resource of Relay configuration.
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
This base station can further include transmitting element two and receiving element two.
Transmitting element two is used for sending the resource allocation information that is used to transmit downlink buffering state report by using to Relay.
Receiving element two is used for receiving the downlink buffering state report by using that Relay sends on to the described resource of Relay configuration.
The content of described downlink buffering state report by using comprises the existing Relay of the not sending to terminal use's of Relay data volume.
The resource that is used to transmit up buffer status report is identical with the resource of downlink buffering state report by using; On described identical resource, receive up buffer status report and the downlink buffering state report by using of passing through the combined coding transmission that Relay sends.
The resource allocation information that is used to transmit up and/or downlink buffering state report by using comprises a resource on ascending control channel or the uplink data channels; On the resource of described ascending control channel or uplink data channels, receive the up and/or downlink buffering state report by using that Relay sends.
The resource allocation information that is used to transmit up and/or downlink buffering state report by using further comprises the set of a transmission time slot, and the transmission time slot in this set is the cycle; Receive the up and/or downlink buffering state report by using that Relay sends on the time slot in described transmission time slot set.
The resource allocation information that is used to transmit up and/or downlink buffering state report by using comprises a transmission time slot; On a described transmission time slot, receive the up and/or downlink buffering state report by using that Relay sends.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention, all any modifications of being made within the spirit and principles in the present invention, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (24)
1. the method for a via node Relay reporting transmission buffering state is characterized in that, this method comprises:
Relay receives the resource allocation information that is used to transmit up buffer status report that the base station gives;
Relay sends up buffer status report on the resource of base station configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
2. the method for claim 1 is characterized in that, this method further comprises:
Relay receives the resource allocation information that is used to transmit downlink buffering state report by using that the base station gives;
Relay sends downlink buffering state report by using on the resource of base station configuration;
The content of described downlink buffering state report by using comprises the existing Relay of the not sending to terminal use's of Relay data volume.
3. method as claimed in claim 2 is characterized in that:
The resource that Relay is used to transmit up buffer status report is identical with the resource of downlink buffering state report by using;
Relay transmits up buffer status report and downlink buffering state report by using by combined coding on described identical resource.
4. the method for claim 1 is characterized in that:
The resource allocation information that Relay is used to transmit up buffer status report comprises a resource on ascending control channel or the uplink data channels;
Relay uses the up buffer status report of the resource transmission of described ascending control channel or uplink data channels.
5. method as claimed in claim 4 is characterized in that:
The resource allocation information that Relay is used to transmit up buffer status report further comprises the set of a transmission time slot, and the transmission time slot in this set is the cycle;
Send up buffer status report on the time slot of Relay in described transmission time slot set.
6. method as claimed in claim 4 is characterized in that:
The resource allocation information that Relay is used to transmit up buffer status report comprises a transmission time slot;
Relay transmits up buffer status report on a described transmission time slot.
7. the method for a via node Relay reporting transmission buffering state is characterized in that, this method comprises:
The base station sends the resource allocation information that is used to transmit up buffer status report to Relay;
The base station receives the up buffer status report that Relay sends on to the described resource of Relay configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
8. method as claimed in claim 7 is characterized in that, this method further comprises:
The base station sends the resource allocation information that is used to transmit downlink buffering state report by using to Relay;
The base station receives the downlink buffering state report by using that Relay sends on to the described resource of Relay configuration;
The content of described downlink buffering state report by using comprises the existing Relay of the not sending to terminal use's of Relay data volume.
9. method as claimed in claim 8 is characterized in that:
The base station is that the resource that is used to transmit up buffer status report of Relay configuration is identical with the resource of downlink buffering state report by using;
The base station receives up buffer status report and the downlink buffering state report by using of Relay by the combined coding transmission on described identical resource.
10. method as claimed in claim 7 is characterized in that:
The base station is that the resource allocation information that is used to transmit up buffer status report of Relay configuration comprises a resource on ascending control channel or the uplink data channels;
The base station receives the up buffer status report that Relay sends on the resource of described ascending control channel or uplink data channels.
11. method as claimed in claim 10 is characterized in that:
The base station is the set that the resource allocation information that is used to transmit up buffer status report of Relay configuration further comprises a transmission time slot, and the transmission time slot in this set is the cycle;
Receive the up buffer status report that Relay sends on the time slot of base station in described transmission time slot set.
12. method as claimed in claim 10 is characterized in that:
The base station is that the resource allocation information that is used to transmit up buffer status report of Relay configuration comprises a transmission time slot;
The base station receives the up buffer status report that Relay sends on described single transmission time slot.
13. the device of a via node Relay is characterized in that, this device comprises:
Receiving element one is used to receive the resource allocation information that is used to transmit up buffer status report that the base station gives;
Transmitting element one is used for sending up buffer status report on the resource of base station configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
14. device as claimed in claim 13 is characterized in that, this device further comprises:
Receiving element two is used to receive the resource allocation information that is used to transmit downlink buffering state report by using that the base station gives;
Transmitting element two is used for sending downlink buffering state report by using on the resource of base station configuration;
The content of described downlink buffering state report by using comprises the existing Relay of the not sending to terminal use's of Relay data volume.
15. device as claimed in claim 14 is characterized in that:
The resource that is used to transmit up buffer status report is identical with the resource of downlink buffering state report by using;
Up buffer status report sends by combined coding on described identical resource with downlink buffering state report by using.
16. device as claimed in claim 13 is characterized in that:
The resource allocation information that is used to transmit up buffer status report comprises a resource on ascending control channel or the uplink data channels;
Up buffer status report sends in the resource of described ascending control channel or uplink data channels.
17. device as claimed in claim 16 is characterized in that:
The resource allocation information that is used to transmit up buffer status report further comprises the set of a transmission time slot, and the transmission time slot in this set is the cycle;
Send on the time slot of up buffer status report in described transmission time slot set.
18. device as claimed in claim 16 is characterized in that:
The resource allocation information that is used to transmit up buffer status report comprises a transmission time slot;
Up buffer status report sends on a described transmission time slot.
19. the device of a base station is characterized in that, this device comprises:
Transmitting element one is used for sending the resource allocation information that is used to transmit up buffer status report to Relay;
Receiving element one is used for receiving the up buffer status report that Relay sends on to the described resource of Relay configuration;
The content of described up buffer status report comprises the existing data volume that does not send to the base station of Relay.
20. device as claimed in claim 19 is characterized in that, this device further comprises:
Transmitting element two is used for sending the resource allocation information that is used to transmit downlink buffering state report by using to Relay;
Receiving element two is used for receiving the downlink buffering state report by using that Relay sends on to the described resource of Relay configuration;
The content of described downlink buffering state report by using comprises the existing Relay of the not sending to terminal use's of Relay data volume.
21. device as claimed in claim 20 is characterized in that:
The resource that is used to transmit up buffer status report is identical with the resource of downlink buffering state report by using;
On described identical resource, receive up buffer status report and the downlink buffering state report by using of passing through the combined coding transmission that Relay sends.
22. device as claimed in claim 19 is characterized in that:
The resource allocation information that is used to transmit up buffer status report comprises a resource on ascending control channel or the uplink data channels;
On the resource of described ascending control channel or uplink data channels, receive the up buffer status report that Relay sends.
23. device as claimed in claim 22 is characterized in that:
The resource allocation information that is used to transmit up buffer status report further comprises the set of a transmission time slot, and the transmission time slot in this set is the cycle;
Receive the up buffer status report that Relay sends on the time slot in described transmission time slot set.
24. device as claimed in claim 22 is characterized in that:
The resource allocation information that is used to transmit up buffer status report comprises a transmission time slot;
On a described transmission time slot, receive the up buffer status report that Relay sends.
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| CN200910082685A CN101873642A (en) | 2009-04-24 | 2009-04-24 | Method and device for reporting transmission buffering state of relay node |
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| CN200910082685A CN101873642A (en) | 2009-04-24 | 2009-04-24 | Method and device for reporting transmission buffering state of relay node |
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| CN102045851A (en) * | 2011-01-25 | 2011-05-04 | 华中科技大学 | Uplink resource allocating method and device for relay network |
| WO2014209077A1 (en) | 2013-06-28 | 2014-12-31 | Samsung Electronics Co., Ltd. | Method and apparatus for performing device-to-device communication |
| WO2017132962A1 (en) * | 2016-02-04 | 2017-08-10 | 华为技术有限公司 | Security parameter transmission method and related device |
| WO2018058684A1 (en) * | 2016-09-30 | 2018-04-05 | 华为技术有限公司 | Resource request method, device and system |
| CN108901076A (en) * | 2018-06-29 | 2018-11-27 | 京信通信系统（中国）有限公司 | Resource regulating method, the apparatus and system of narrowband Internet of Things |
| CN111865521A (en) * | 2019-04-29 | 2020-10-30 | 大唐移动通信设备有限公司 | Data transmission method in relay network and network side equipment |
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