CN102209392B - A kind of descending control resource allocation methods and equipment - Google Patents
A kind of descending control resource allocation methods and equipment Download PDFInfo
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- CN102209392B CN102209392B CN201010138983.7A CN201010138983A CN102209392B CN 102209392 B CN102209392 B CN 102209392B CN 201010138983 A CN201010138983 A CN 201010138983A CN 102209392 B CN102209392 B CN 102209392B
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Abstract
The invention discloses a kind of descending control resource allocation methods and equipment, by the technical scheme that the application embodiment of the present invention proposes, for the system comprising relay node equipment, can the Downlink Control Information in descending control resource when entirely interweaving, for the descending sub frame in different back haul links distributes different descending control resources, avoid network transmission resource waste, and improve the efficiency of transmission of schedule information.
Description
Technical field
The present invention relates to communication technical field, particularly the descending control resource allocation methods of one and equipment.
Background technology
LTE (Long Term Evolution, Long Term Evolution) system, it is the evolution system of 3-G (Generation Three mobile communication system), and LTE-Advanced (Long Term Evolution Advanced, senior Long Term Evolution) be 3-G (Generation Three mobile communication system) evolution system upgrading, in LTE-Advanced system, the method for relaying (Relay) cooperation transmission will be adopted to improve service quality and the Extended Cell covering of Cell Edge User.
Lte-a system makes the wireless link based on the mobile communication system of Relay have three after introducing relay node equipment (Relay Node, RN), as shown in Figure 1:
Node wherein comprises:
Donor-eNB: have the eNB of wireless connections with RN equipment, be abbreviated as DeNB;
Relay-Node: be present in the entity between DeNB and UE, is abbreviated as RN equipment;
Relay-UE: carry out the UE of data interaction with RN equipment, be abbreviated as R-UE;
Grand UE: direct and DeNB carries out the UE of data interaction.
Interface comprises:
Un interface: the interface between RN equipment and DeNB;
Uu interface: the interface between UE and RN equipment.
Wireless link comprises:
Backhaul link: back haul link, the link corresponding with Un interface;
Access link: access link, the link corresponding with Uu interface;
Direct link: direct projection link, DeNB and grand UE carry out the link of transfer of data.
Consider the signal disturbing restriction of radio communication, therefore, three links need to use orthogonal Radio Resource.Transceiver due to relay node equipment is half time division duplex (Time Division Duplexing, TDD) mode of operation, Backhaul link and Access link take different time slots in tdd frame structure, but Direct link and Backhaul link are can be coexistent, as long as its running time-frequency resource is orthogonal.
RN adopts MBSFN (Multimedia Braodcast Single Frequency Network, multicast single frequency network) subframe receive base station send downlink data, the control area of MBSFN sub-frame takies 1 or 2 OFDM (Orthogonal Frequency Division Multiplexing, OFDM) symbol, the UE (R-UE) served to it for RN transmits control signal.In the downlink transfer of back haul link, RN cannot receive control area PDCCH (the Physical Downlink Control Channel of base station, Physical Downlink Control Channel), therefore, base station needs to create a region, for transmitting control signal to RN in PDSCH (Physical Downlink SharedChannel, Physical Downlink Shared Channel) region, claim this region to be R-PDCCH region, its structural representation as shown in Figure 2.
R-PDCCH region can adopt FDM (Frequency Division Multiplexing, frequency division multiplexing) or TDM (Time Division Multiplexing, time division multiplexing)+FDM model split.
FDM mode as shown in Figure 3, FDM R-PDCCH region takies one or more PRB (Physical Resource Block at frequency domain, Physical Resource Block), multiple PRB can be discrete or continuous print, takies other OFDM symbol in a subframe except eNB PDCCH and Transmit enable in time domain.Because FDM resource multiplex mode takies more OFDM symbol in time domain, R-PDSCH decoding delay will be caused longer.
As shown in Figure 4, TDM+FDM R-PDCCH region takies one or more PRB at frequency domain to TDM+FDM mode, and multiple PRB can be discrete or continuous print, takies the part OFDM symbol in a subframe in first time slot in time domain.In TDM+FDM R-PDCCH PRB, remaining OFDM symbol can be used for the PDSCH of R-PDSCH or UE of scheduled transmission RN.
Realizing in process of the present invention, inventor finds that prior art at least exists following problem:
In a tdd system, support that downlink subframes in return link number is greater than sub-frame of uplink number, therefore in part descending sub frame, base station needs to send uplink scheduling and down dispatch information simultaneously, in part descending sub frame, base station only needs to send down dispatch information, the R-PDCCH resource needed in two class subframes is different, if be the R-PDCCH resource that two class sub-frame allocation are identical, when Downlink Control Information carries out full intertexture, only need will there be the R-PDCCH wasting of resources in the subframe of transmission down dispatch information.
As shown in Figure 5, for TDD configuration 3, sub-frame of uplink 3 is assigned as back haul link sub-frame of uplink, descending sub frame (subframe 7, subframe 8, subframe 9) be assigned as downlink subframes in return link, according to Rel-8 specification, the transmission of base station dispatching uplink subframe 3 in subframe 9, needs to send uplink and downlink schedule information simultaneously, and in subframe 7 and 8, only need to send down dispatch information, if distribute identical R-PDCCH resource in three subframes, under Downlink Control Information carries out full interlace map condition, in subframe 7 and subframe 8, the R-PDCCH wasting of resources will be had.
Summary of the invention
The invention provides a kind of descending control resource allocation methods and equipment, solve the problem of descending control Resourse Distribute in the system comprising relay node equipment.
For achieving the above object, one aspect of the present invention provides a kind of descending control resource allocation methods, comprises the following steps:
Base station is respectively the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources;
Described base station sends to each relay node equipment of own services the message comprising described first down control channel resources assignment information and/or described second down control channel resources assignment information, obtains back haul link Downlink Control Information for making described each relay node equipment by corresponding down control channel resources.
On the other hand, the embodiment of the present invention additionally provides a kind of base station, comprising:
Resource distribution module, for being respectively the downlink subframes in return link transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources simultaneously;
Communication module, each relay node equipment for serving to described base station sends the message comprising the determined described first down control channel resources assignment information of described resource distribution module and/or described second down control channel resources assignment information, for making described each relay node equipment by corresponding descending control resource acquisition back haul link Downlink Control Information.
On the other hand, the embodiment of the present invention additionally provides a kind of descending control resource allocation methods, comprises the following steps:
The broadcast of the assignment information of the second down control channel resources second down control channel resources that the assignment information of the first down control channel resources that the downlink subframes in return link that what relay node equipment received that base station sends be included as transmits down dispatch information and uplink scheduling information simultaneously distributes and/or the downlink subframes in return link only transmitting down dispatch information distribute or high-level signaling;
Described relay node equipment determines described first down control channel resources and/or described second down control channel resources, for detecting back haul link Downlink Control Information in the resource determined according to the assignment information of the assignment information of described first down control channel resources and/or described second down control channel resources in corresponding downlink subframes in return link.
On the other hand, the embodiment of the present invention additionally provides a kind of relay node equipment, comprising:
Receiver module, for receiving the message comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information that base station sends;
Determination module, for determining the first down control channel resources and/or the second down control channel resources according to down control channel resources assignment information.
Detection module, for detecting back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined He on described second down control channel resources.
Compared with prior art, the present invention has the following advantages:
By the technical scheme that the application embodiment of the present invention proposes, for the system comprising relay node equipment, can the Downlink Control Information in descending control resource when entirely interweaving, for the descending sub frame in different back haul links distributes different descending control resources, avoid network transmission resource waste, and improve the efficiency of transmission of schedule information.
Accompanying drawing explanation
Fig. 1 is the structural representation of lte-a system of the prior art;
Fig. 2 is the structural representation in R-PDCCH region of the prior art;
Fig. 3 is the structural representation of FDM resource multiplex mode of the prior art;
Fig. 4 is the structural representation of TDM+FDM resource multiplex mode of the prior art;
Fig. 5 is the schematic diagram of backhaul link subframe allocation example of the prior art;
Fig. 6 is the schematic flow sheet in base station side of a kind of descending control resource allocation methods in the embodiment of the present invention;
Fig. 7 is the schematic flow sheet at RN equipment side of a kind of descending control resource allocation methods in the embodiment of the present invention;
Fig. 8 is the schematic flow sheet of descending control resource allocation methods under a kind of concrete scene in the embodiment of the present invention;
Fig. 9 is the schematic diagram of a kind of R-PDCCH Resourse Distribute example in the embodiment of the present invention;
Figure 10 is the schematic diagram of the another kind of R-PDCCH Resourse Distribute example in the embodiment of the present invention;
Figure 11 is the structural representation of a kind of base station in the embodiment of the present invention;
Figure 12 is the structural representation of a kind of relay node equipment in the embodiment of the present invention.
Embodiment
In order to solve problem existing in prior art, for the waste of network transmission resource when avoiding the Downlink Control Information in descending control resource entirely to interweave, embodiments provide a kind of descending control resource allocation methods and equipment.
As shown in Figure 6, a kind of descending control resource allocation methods proposed for the embodiment of the present invention is at the schematic flow sheet of base station side, and the method specifically comprises the following steps:
Step S601, base station are respectively the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources.
In concrete application scenarios, base station is that the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information distributes the first down control channel resources, and is that the downlink subframes in return link only transmitting down dispatch information distributes the second down control channel resources.First down control channel resources and the second down control channel resources separate, or meet predetermined resources relationship rule (such as a kind of resource collection is the subset of another kind of resource collection).
It is further noted that, in this step, base station is respectively the mode that the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distribute the first down control channel resources and the second down control channel resources, specifically comprises:
Base station, according to the resource allocation policy preset or according to the resource of base station in the time interval preset needed for the Downlink Control Information average transmission amount of adding up, is respectively the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the backhaul only transmitting down dispatch information and connects descending sub frame and distribute the first down control channel resources and the second down control channel;
Particularly, if in advance for Resourse Distribute size and resource location etc. are determined in base station, Resourse Distribute is carried out according to this predetermined resource allocation policy in base station; If but pre-determine resource allocation policy, a kind of simple mode be base station according to self each service relay node equipment needed for maximum resource carry out Resources allocation, this method of salary distribution may cause the wasting of resources; Another kind of mode is, Downlink Control Information average transmission amount is added up in base station in predetermined time interval, and the average abundance needed according to this average transmission amount and every bar Downlink Control Information calculates the resource needed for Downlink Control Information, and Resources allocation according to this.It should be noted that above-mentioned several mode is only example, the concrete Resources allocation mode in base station is including but not limited to aforesaid way.
Step S602, base station send to each relay node equipment of own services the message comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information, obtain back haul link Downlink Control Information for making described each relay node equipment by corresponding down control channel resources.
In concrete application scenarios, described base station sends to each relay node equipment of own services the mode comprising the message of the first down control channel resources assignment information and/or the second down control channel resources assignment information, specifically comprises:
Described base station sends to each relay node equipment of own services the broadcast comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information; Or,
Described base station sends to each relay node equipment of own services the high-level signaling comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information.
Wherein, described high-level signaling is including but not limited to RRC (Radio Resource Control, wireless heterogeneous networks) signaling.
The above embodiments give the handling process of a kind of descending control resource allocation methods in base station side of embodiment of the present invention proposition, accordingly, the embodiment of the present invention additionally provides the handling process of a kind of descending control resource allocation methods in relay node equipment side, its schematic flow sheet as shown in Figure 7, specifically comprises the following steps:
The broadcast of the assignment information of the second down control channel resources second down control channel resources that the assignment information of the first down control channel resources that the downlink subframes in return link that what step S701, relay node equipment received that base station sends be included as transmits down dispatch information and uplink scheduling information simultaneously distributes and/or the downlink subframes in return link only transmitting down dispatch information distribute or high-level signaling.
In concrete application scenarios, the handling process of this step is specially:
Relay node equipment receives broadcast or the high-level signaling of base station transmission, and this broadcast or high-level signaling contain the assignment information of the first down control channel resources and/or the resource allocation information of the second down control channel resources.
Step S702, relay node equipment determine described first down control channel resources and/or described second down control channel resources, for detecting back haul link Downlink Control Information in the resource determined according to the assignment information of the assignment information of described first down control channel resources and/or described second down control channel resources in corresponding downlink subframes in return link.
In concrete application scenarios, specifically comprise following situation:
The assignment information of the assignment information of the first down control channel resources and the second down control channel resources is all informed to relay node equipment by situation one, base station.Corresponding first down control channel resources of this situation and the second down control channel resources separate time, then relay node equipment determines the first down control channel resources and the second down control channel resources respectively according to the assignment information of the first down control channel resources received and the assignment information of the second down control channel resources;
The assignment information of the assignment information of the first down control channel resources or the second down control channel resources is informed to relay node equipment by situation two, base station.When corresponding first down control channel resources of this situation and the second down control channel resources meet predetermined resources relationship rule, then relay node equipment determines the first down control channel resources or the second down control channel resources according to the assignment information of the first down control channel resources received or the assignment information of the second down control channel resources, then determines institute's the second down control channel resources or the first down control channel resources according to predetermined resources relationship rule.
Step S703, relay node equipment detect back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined and on described second down control channel resources.
Wherein, relay node equipment can know the position of the downlink subframes in return link simultaneously sending down dispatch information and uplink scheduling information and the downlink subframes in return link only sending down dispatch information according to the configuration of pre-configured frame structure.After relay node equipment determines the first down control channel resources and the second down control channel resources according to step S702, relay node equipment by corresponding with downlink subframes in return link for the down control channel resources determined, and gets on to detect Downlink Control Information at corresponding down control channel resources in corresponding downlink subframes in return link.
Compared with prior art, the present invention has the following advantages:
By the technical scheme that the application embodiment of the present invention proposes, for the system comprising relay node equipment, can the Downlink Control Information in descending control resource when entirely interweaving, for the descending sub frame in different back haul links distributes different descending control resources, avoid network transmission resource waste, and improve the efficiency of transmission of schedule information.
Below, in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present invention proposes is described in detail.
Suppose in FDM or TDM+FDM R-PDCCH resource, uplink scheduling information (the Uplink grant that all RN equipment (relay node equipment) be scheduled is corresponding, UL grant) and/or down dispatch information (Downlink grant, DL grant) complete interweave after be mapped in the R-PDCCH resource of distribution, interlacing rule can reuse other interlacing rules of CCE interlacing rule in Rel-8 specification or new definition.
Under this kind of scene, the processing procedure of a kind of descending control resource allocation methods that the corresponding embodiment of the present invention proposes as shown in Figure 8, specifically comprises the following steps:
Step S801, base station are the physical resource that the R-PDCCH channel allocation in two kinds of dissimilar downlink subframes in return links is different.
Whether two kinds of dissimilar downlink subframes in return links send uplink scheduling information according to base station in this subframe is determined:
A kind of downlink subframes in return link is that base station sends down dispatch information and uplink scheduling information in this subframe simultaneously;
Another kind of downlink subframes in return link is that base station only sends down dispatch information in this subframe.
In concrete application scenarios, the R-PDCCH resource that dissimilar downlink subframes in return link is corresponding is separate or meet predetermined resources relationship principle (such as a kind of R-PDCCH resource collection is the subset of another kind of R-PDCCH resource collection).
Wherein, the R-PDCCH resource of distribution can be determined in different ways:
Such as, predefine resource size and position, such as distribute which OFDM symbol according to resource multiplex mode predefine time domain, and which PRB predefine frequency domain distributes;
Or,
(such as tens or hundreds of millisecond) are added up for a long time to needing the Downlink Control Information quantity of transmission in base station, calculate average transmission amount, then according to the average abundance that every bar DCI of statistics uses, share the resource size calculating and need to distribute.R-PDCCH resource is distributed according to resource multiplex mode and frequency domain resource scheduling mode in base station.
Above two kinds of modes to be only in the embodiment of the present invention preferred exemplary provided for convenience of explanation; resource distribution mode includes but not limited to above-mentioned two kinds of modes, and other methods that can reach constructed effect belong to the protection range of the embodiment of the present invention too.
The assignment information of the R-PDCCH resource of distribution is informed to all RN equipment of own services by step S802, base station.
In concrete application scenarios; base station can by broadcast to all RN equipment notice resource informations; or base station is by each RN equipment notice resource information of high-level signaling (such as RRC signaling) respectively to own services; or other advice methods, the change of concrete advice method can't affect the protection range of the embodiment of the present invention.
Wherein, the assignment information of base station notice R-PDCCH resource comprises two kinds of situations:
Resource allocation information corresponding for two kinds of dissimilar downlink subframes in return links is all informed to relay node equipment by situation one, base station;
Resource allocation information corresponding for a kind of downlink subframes in return link is only informed to relay node equipment by situation two, base station.
Correspondingly, the broadcast or high-level signaling that comprise two kinds or a kind of down control channel resources assignment information can be informed to RN equipment by base station.
As shown in Figure 9, suppose that base station sends uplink scheduling and down dispatch information in subframe n simultaneously, only down dispatch information is sent in subframe n+1, base station utilizes the signaling (broadcast or high-level signaling) comprising two kinds of down control channel resources assignment information to notify, and the R-PDCCH resource that two subframes are corresponding, this advice method are applicable to all Resources allocation modes (R-PDCCH resource corresponding to two subframes exist certain contact or independent etc.).
Or only send the signaling (broadcast or high-level signaling) comprising a kind of down control channel resources assignment information, determine that the resource allocation information that another kind of subframe type is corresponding, which are only applicable to exist between R-PDCCH resource corresponding to two kinds of dissimilar subframes the situation of certain resources relationship for making RN equipment according to the resource allocation information of this notice.
Wherein, the resource relationship between two kinds of subframes can preset in by standard or implementation, does not limit in the technical scheme that concrete send mode proposes in the embodiment of the present invention.
Resourse Distribute in two kinds of subframes is existed to the situation of contact, the embodiment of the present invention furthermore present following example:
As Figure 10 example, suppose that base station sends uplink scheduling and down dispatch information in subframe n simultaneously, in subframe n+1, only send down dispatch information.Following rule is adopted during resource corresponding to base station assigns two subframes, the R-PDCCH PRB of subframe n+1 is identical with the R-PDCCH PRB part of subframe n, further, can also limit from PRB index minimum value or maximum, logic continuous print part PRB is identical.Base station by the R-PDCCH PRB message notice of subframe n to RN equipment, for making RN equipment according to the R-PDCCH PRB of predefined resource ratio and allocation rule determination subframe n+1.
Step S803, RN equipment receive the R-PDCCH resource allocation information that base station sends, and determine to need, in downlink subframes in return link, which PRB detects the Downlink Control Information corresponding with self according to this resource information.
If RN equipment receives comprise down control channel resources assignment information corresponding to two kinds of dissimilar subframes, the downlink subframes in return link that the two spike-type cultivars assignment information determined respectively and receive is corresponding, and determine the R-PDCCH resource corresponding with resource allocation information, RN equipment detects the Downlink Control Information corresponding with self in the subframe determined in corresponding R-PDCCH resource;
If RN equipment only receives comprise down control channel resources assignment information corresponding to a kind of downlink subframes in return link, RN equipment needs to determine the downlink subframes in return link corresponding with this resource information, and determine the R-PDCCH resource corresponding with resource information, the R-PDCCH resource determining that another type subframe is corresponding is then gone according to the resource determined.Such as base station and RN equipment arrange to there is certain contact between R-PDCCH resource corresponding to two kinds of dissimilar subframes, according to this agreement relation and predefined resource size ratio, can determine the R-PDCCH resource that another kind of type subframe is corresponding.RN equipment detects the Downlink Control Information corresponding with self in corresponding subframe in corresponding R-PDCCH resource.
Compared with prior art, the present invention has the following advantages:
By the technical scheme that the application embodiment of the present invention proposes, for the system comprising relay node equipment, can the Downlink Control Information in descending control resource when entirely interweaving, for the descending sub frame in different back haul links distributes different descending control resources, avoid network transmission resource waste, and improve the efficiency of transmission of schedule information.
In order to realize above-mentioned technical scheme proposed by the invention, the embodiment of the present invention additionally provides a kind of base station, and its structural representation as shown in figure 11, comprising:
Resource distribution module 111, for being respectively the downlink subframes in return link transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources simultaneously, be specially:
The first descending control resource that resource distribution module 111 distributes and the second descending control resource separate or meet predetermined resources relationship rule.
Communication module 112, each relay node equipment for serving to base station sends the message comprising the determined first down control channel resources assignment information of resource distribution module 111 and/or the second down control channel resources assignment information, for making each relay node equipment by corresponding descending control resource acquisition back haul link Downlink Control Information.
Wherein, each relay node equipment that communication module 112 is served to base station sends the mode comprising the message of the assignment information of descending control resource, specifically comprises:
Each relay node equipment that communication module 112 is served to base station sends the broadcast comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information; Or,
Each relay node equipment that communication module 112 is served to base station sends the high-level signaling comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information.
Further, base station also comprises:
Module 113 is set, for arranging resource allocation policy;
Statistical module 114, for adding up Downlink Control Information average transmission amount in the time interval preset;
Resource distribution module 111, according to the resource size allocation strategy arranged set by module 113 or according to the resource of described statistical module 114 in the time interval preset needed for the Downlink Control Information average transmission amount of adding up, is respectively the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources second down control channel resources.
On the other hand, the embodiment of the present invention additionally provides a kind of relay node equipment, and its structural representation as shown in figure 12, comprising:
Receiver module 121, for receiving the message comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information that base station sends;
Determination module 122, for determining the first down control channel resources and/or the second down control channel resources according to down control channel resources assignment information, is specially;
First down control channel resources and the second down control channel resources separate time, the assignment information of 1 first down control channel resources that determination module 122 receives according to receiver module 121 and the assignment information of the second down control channel resources determine the first down control channel resources and the second down control channel resources respectively;
When first down control channel resources and the second down control channel resources meet predetermined resources relationship rule, the assignment information of the first down control channel resources that determination module 122 receives according to receiver module 121 or the assignment information of the second down control channel resources determine the first down control channel resources or the second down control channel resources, then determine the second down control channel resources or the first down control channel resources according to predetermined resources relationship rule.
Detection module 123, for detecting back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined He on described second down control channel resources, is specially:
Detection module 123 detects back haul link Downlink Control Information in corresponding downlink subframes in return link on the first down control channel resources determined by determination module 122 He on the second down control channel resources.
Compared with prior art, the present invention has the following advantages:
By the technical scheme that the application embodiment of the present invention proposes, for the system comprising relay node equipment, can the Downlink Control Information in descending control resource when entirely interweaving, for the descending sub frame in different back haul links distributes different descending control resources, avoid network transmission resource waste, and improve the efficiency of transmission of schedule information.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform each method implementing described in scene of the present invention in order to make a computer equipment (can be personal computer, service end, or the network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram preferably implementing scene, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device implemented in scene can carry out being distributed in the device of enforcement scene according to implementing scene description, also can carry out respective change and being arranged in the one or more devices being different from this enforcement scene.The module of above-mentioned enforcement scene can merge into a module, also can split into multiple submodule further.
The invention described above sequence number, just to describing, does not represent the quality implementing scene.
Be only several concrete enforcement scene of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (14)
1. a down control channel resources distribution method, is characterized in that, comprises the following steps:
Base station is respectively the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources;
Described base station sends to each relay node equipment of own services the message comprising described first down control channel resources assignment information and/or described second down control channel resources assignment information, obtains back haul link Downlink Control Information for making described each relay node equipment by corresponding down control channel resources.
2. the method for claim 1, it is characterized in that, described base station is respectively the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources, is specially:
Described first down control channel resources and described second down control channel resources separate or meet predetermined resources relationship rule.
3. method as claimed in claim 2, it is characterized in that, described base station is respectively the mode that the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distribute the first down control channel resources and the second down control channel resources, specifically comprises:
Described base station according to the resource allocation policy preset or according to the resource of base station in the time interval preset needed for the Downlink Control Information average transmission amount of adding up, be respectively described transmit down dispatch information and uplink scheduling information simultaneously downlink subframes in return link and the described downlink subframes in return link only transmitting down dispatch information distribute the first down control channel resources and the second down control channel resources.
4. the method for claim 1, it is characterized in that, described base station sends to each relay node equipment of own services the mode comprising the message of described first down control channel resources assignment information and/or described second down control channel resources assignment information, specifically comprises:
Described base station sends to each relay node equipment of own services the broadcast comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information; Or,
Described base station sends to each relay node equipment of own services the high-level signaling comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information.
5. a base station, is characterized in that, comprising:
Resource distribution module, for being respectively the downlink subframes in return link transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources simultaneously;
Communication module, each relay node equipment for serving to described base station sends the message comprising the determined first down control channel resources assignment information of described resource distribution module and/or the second down control channel resources assignment information, obtains back haul link Downlink Control Information for making described each relay node equipment by corresponding down control channel resources.
6. base station as claimed in claim 5, it is characterized in that, described resource distribution module, for being respectively the downlink subframes in return link transmitting down dispatch information and uplink scheduling information and the downlink subframes in return link only transmitting down dispatch information distributes the first down control channel resources and the second down control channel resources simultaneously, be specially:
Described first down control channel resources and described second down control channel resources separate or meet predetermined resources relationship rule.
7. base station as claimed in claim 6, is characterized in that, also comprise:
Module is set, for arranging resource allocation policy;
Statistical module, for adding up Downlink Control Information average transmission amount in the time interval preset;
Described resource distribution module is according to the described resource allocation policy arranged set by module, or according to the resource of described statistical module in the time interval preset needed for the Downlink Control Information average transmission amount of adding up, be respectively described transmit down dispatch information and uplink scheduling information simultaneously downlink subframes in return link and the described downlink subframes in return link only transmitting down dispatch information distribute the first down control channel resources and the second down control channel resources.
8. base station as claimed in claim 5, it is characterized in that, each relay node equipment that described communication module is served to described base station sends the mode comprising the message of the first down control channel resources assignment information and the second down control channel resources assignment information, specifically comprises:
Each relay node equipment that described communication module is served to described base station sends the broadcast comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information; Or,
Each relay node equipment that described communication module is served to described base station sends the high-level signaling comprising the first down control channel resources assignment information and/or the second down control channel resources assignment information.
9. a down control channel resources distribution method, is characterized in that, comprises the following steps:
The broadcast of the assignment information of the second down control channel resources that the assignment information of the first down control channel resources that the downlink subframes in return link that what relay node equipment received that base station sends be included as transmits down dispatch information and uplink scheduling information simultaneously distributes and the downlink subframes in return link only transmitting down dispatch information distribute or high-level signaling;
Described relay node equipment determines described first down control channel resources and/or described second down control channel resources, for detecting back haul link Downlink Control Information in the resource determined according to the assignment information of the assignment information of described first down control channel resources and/or described second down control channel resources in corresponding downlink subframes in return link;
Wherein, described relay node equipment detects back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined He on described second down control channel resources.
10. method as claimed in claim 9, is characterized in that,
Described first down control channel resources and described second down control channel resources separate time, described relay node equipment according to receive the assignment information of described first down control channel resources and the assignment information of described second down control channel resources determine described first down control channel resources and described second down control channel resources respectively;
When described first down control channel resources and described second down control channel resources meet predetermined resources relationship rule, described relay node equipment determines described first down control channel resources or described second down control channel resources according to the assignment information of described first down control channel resources received or the assignment information of described second down control channel resources, then determines described second down control channel resources or described first down control channel resources according to predetermined resources relationship rule.
11. 1 kinds of down control channel resources distribution methods, is characterized in that, comprising:
Relay node equipment receives the broadcast being included as the assignment information of the second down control channel resources of the downlink subframes in return link distribution only transmitting down dispatch information or the high-level signaling of base station transmission;
Described relay node equipment determines described second down control channel resources according to the assignment information of the second down control channel resources in corresponding downlink subframes in return link, for detecting back haul link Downlink Control Information in the resource determined;
First down control channel resources and described second down control channel resources meet predetermined resources relationship rule, described relay node equipment determines described second down control channel resources according to the assignment information of described second down control channel resources received, then determines described first down control channel resources according to predetermined resources relationship rule; Wherein, described first down control channel resources is used for the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information;
Described relay node equipment detects back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined He on described second down control channel resources.
12. 1 kinds of relay node equipments, is characterized in that, comprising:
Receiver module, for receiving the message comprising the first down control channel resources assignment information and the second down control channel resources assignment information that base station sends;
Wherein, described first down control channel resources is used for the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information, and described second down control channel resources is for transmitting the downlink subframes in return link of down dispatch information;
Determination module, for determining the first down control channel resources and/or the second down control channel resources according to down control channel resources assignment information;
Detection module, for detecting back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined He on described second down control channel resources;
Wherein, described detection module detects back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined by described determination module He on described second down control channel resources.
13. relay node equipments as claimed in claim 12, is characterized in that,
Described first down control channel resources and described second down control channel resources separate time, the assignment information of described first down control channel resources that described determination module receives according to described receiver module and the assignment information of described second down control channel resources determine described first down control channel resources and described second down control channel resources respectively;
When described first down control channel resources and described second down control channel resources meet predetermined resources relationship rule, the assignment information of described first down control channel resources that described determination module receives according to described receiver module or the assignment information of described second down control channel resources determine described first down control channel resources or described second down control channel resources, then determine described second down control channel resources or described first down control channel resources according to predetermined resources relationship rule.
14. 1 kinds of relay node equipments, is characterized in that, comprising:
Receiver module, for receiving the message comprising the second down control channel resources assignment information that base station sends; Wherein, described second down control channel resources is for transmitting the downlink subframes in return link of down dispatch information;
Determination module, for determining the second down control channel resources according to the second down control channel resources assignment information;
First down control channel resources and described second down control channel resources meet predetermined resources relationship rule, the assignment information of described first down control channel resources that described determination module receives according to described receiver module or the assignment information of described second down control channel resources determine described first down control channel resources or described second down control channel resources, then determine described second down control channel resources or described first down control channel resources according to predetermined resources relationship rule; Wherein, described first down control channel resources is used for the downlink subframes in return link simultaneously transmitting down dispatch information and uplink scheduling information;
Detection module, for detecting back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined He on described second down control channel resources;
Wherein, described detection module detects back haul link Downlink Control Information in corresponding downlink subframes in return link on described first down control channel resources determined by described determination module He on described second down control channel resources.
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| CN107205283B (en) * | 2016-03-18 | 2022-06-17 | 中兴通讯股份有限公司 | Method and device for establishing return channel |
| CN107371262B (en) * | 2016-05-12 | 2019-08-06 | 电信科学技术研究院 | A kind of transmission of uplink and downlink scheduling information, detection method and device |
| EP3714555A4 (en) * | 2017-11-20 | 2021-07-07 | Nokia Solutions and Networks Oy | Backhaul transmission between network devices |
| EP3821662A1 (en) * | 2018-07-12 | 2021-05-19 | Nokia Technologies OY | Hybrid macro diversity and cooperative relaying method of ultra-reliable and real-time multi-user communication |
| CN113056944B (en) * | 2018-10-31 | 2024-03-26 | 上海诺基亚贝尔股份有限公司 | Method, apparatus and computer readable medium for communication |
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