CN102237979B

CN102237979B - Relay backhaul link control signal transmission method and device

Info

Publication number: CN102237979B
Application number: CN201010164434.7A
Authority: CN
Inventors: 潘学明; 沈祖康; 王立波; 张文健; 肖国军
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2010-04-30
Filing date: 2010-04-30
Publication date: 2014-06-04
Anticipated expiration: 2030-04-30
Also published as: CN102237979A

Abstract

The invention discloses a relay backhaul link control signal transmission method and device, and solves the problem how an uplink/downlink resource scheduling signal in a relay backhaul link is transmitted. The method is realized in a way that: a relay node detects an uplink scheduling signal in an acquired control signal area for transmitting a relay uplink resource scheduling signal, wherein the control signal area for transmitting a relay uplink resource scheduling signal is within a frequency domain resource set which is indicated by a base station and used for loading the relay uplink resource scheduling signal.

Description

A kind of control signal transmission method of relay return link, device

Technical field

The present invention relates to communication technical field, refer to especially a kind of control signal transmission method, device of relay return link.

Background technology

Fig. 1 is the network configuration of a kind of advanced person's Long Term Evolution (LTE-A).As shown in Figure 1, in the network configuration of LTE-A system, base station (eNB) links core net (CN) by wireline interface; Via node (RN) is linked eNB by wave point; Subscriber equipment (UE) is linked RN or eNB by wave point.

The introducing of via node makes the wireless link of the mobile communication system based on relaying (Relay) have three: eNB-(grand) macro UE direct projection link (direct link), eNB-RN back haul link (backhaul link) and RN-relay UE access link (access link), consider the signal interference-limited of radio communication, therefore three links need to use orthogonal Radio Resource.In same frequency range, for fear of self-interference, via node sending and receiving simultaneously and reception data.In LTE-A, via node can pass through mode and the mutual backhaul data of its donor eNB of MFSBN subframe, as shown in Figure 2.

Due to the restriction of MBSFN mode, in descending back haul link, relaying can not be accepted the PDCCH that base station sends, and therefore needs the R-PDCCH of definition for RN, and wherein R-PDCCH sends in the territory, noncontrolled area of MBSFN subframe.

Inventor, in research process, has mainly proposed the design of two class R-PDCCH, comprises TDM+FDM mode and simple FDM mode.Specifically see shown in Fig. 3 and Fig. 4.In TDM+FDM mode, R-PDCCH only takies a part of OFDM symbol in part PRB in system bandwidth (R-PDCCH takies at most all OFDM symbols of time slot 1 in time domain).In FDM mode, R-PDCCH takies the whole OFDM symbols in part PRB in system bandwidth.

Due to the forward transmission of R-PDCCH in TDM+FDM mode, the therefore RN R-PDCCH that can decode in advance, for the reserved more processing time of R-PDSCH decoding, therefore has larger advantage from realizing angle.And R-PDCCH takies complete PRB in FDM mode, therefore reuse plan and reference symbol design etc. are comparatively simple, and can not bring complexity to base station scheduling.Therefore two schemes respectively has superiority, and is difficult to accept or reject, but can adopts a kind of compromise scheme, describes as follows:

1) scheduling downlink resource signaling (DL grant) always sends in the 1st time slot in descending backhaul subframe, has guaranteed that DL grant can advanced processing, is the reserved sufficient time of R-PDSCH decoding;

2), in a descending backhaul subframe, ascending resource scheduling signaling (UL grant) can send by the 2nd time slot on the frequency domain RB identical with DL grant.

Based on above-mentioned compromise scheme, when both having needed to send DL grant in descending backhaul subframe, while needing again to send UL grant, both adopt TDM mode multiplexing, and as shown in Figure 5, some possible ways are, base station is the frequency domain resource that the semi-static notice of RN sends for R-PDCCH in each descending backhaul subframe, be RB, these RB can be that frequency domain is continuous, can be also discrete.Corresponding multiple dispatch interweaves in these resources.

In addition, in a DL backhaul subframe, following several respects factor, the OFDM number of symbols that can be used for transmitting the OFDM number of symbols of DL grant and can be used for transmitting UL grant in DL backhaul subframe is unbalanced.

(1) due to the variation (1 or 2 OFDM symbol) of PDCCH number of symbols;

(2) different due to the synchronous requirement between base station and RN;

Under base station and the non-strict frame head synchronous situation of RN, last OFDM symbol of the 2nd time slot can be received by RN;

Under base station and the strict frame head synchronous situation of RN, switching time is received/sent out to last OFDM symbol of the 2nd time slot as RN, cannot receive);

(3) switching time is sent out/received to 1 OFDM symbol only following after PDCCH sign-off for RN, and RN cannot receive.

In short CP situation, each time slot (slot) has 7 OFDM symbols, and now DL grant can only take 4-5 OFDM symbol in first slot, and UL grant can take second 6-7 in slot OFDM symbol.

In expansion CP situation, each slot has 6 OFDM symbols, and now DL grant can only take 3-4 OFDM symbol in first slot, and UL grant can take second 5-6 in slot OFDM symbol.

Can see, when DL grant and UL grant adopt TDM mode multiplexing, both time-domain resource are unbalanced, and UL grant available resources are compared with the many 20%-100% of DL grant.And typical data service is following behavior master or up-downgoing balance, and the information bit of every DL grant is conventionally many compared with UL grant.This contrasts with time-domain resource the relation that is contrary, causes backhaul subframe efficiency of transmission to decline.

Summary of the invention

The invention provides a kind of control signal transmission method, device of relay return link, in order to solve the problem that how ascending resource scheduling signaling and scheduling downlink resource signaling are transmitted in relay return link.

The control signal detection method of a kind of relay return link that the embodiment of the present invention provides, comprising:

Via node, according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determines whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling;

If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, in current descending backhaul subframe, described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource in the frequency domain resource set of relaying ascending resource scheduling signaling;

Wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described RRC signaling sending from base station for the frequency domain resource set of carrying ascending resource scheduling signaling obtains, and the frequency domain resource in described frequency domain resource set is RB.

Via node base station indication for carrying first time slot blind check scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling, wherein, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling, the described frequency domain resource set for bearing downlink scheduling of resource signaling is that the RRC signaling sending from base station obtains, and the frequency domain resource in described frequency domain resource set is RB.

The control signal transmission method of a kind of relay return link that the embodiment of the present invention provides, comprising:

Base station by indicating to this via node for carrying the frequency domain resource aggregate information of relaying ascending resource scheduling signaling for via node configuration in control signal region, described is that the RRC signaling that base station is passed through to send to via node is indicated to this via node for carrying the frequency domain resource set of ascending resource scheduling signaling, and the frequency domain resource in described frequency domain resource set is RB;

Determine whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling;

If current descending backhaul subframe is not only for transmitting the subframe of scheduling downlink resource signaling, described in current descending backhaul subframe for carrying second slot transmission relaying ascending resource scheduling signaling in the set of relaying ascending resource scheduling signaling frequency domain resource.

Base station by indicating to this via node for carrying the frequency domain resource aggregate information of relaying scheduling downlink resource signaling for via node configuration in control signal region; The described frequency domain resource set for bearing downlink scheduling of resource signaling is that the RRC signaling that base station is passed through to send respectively to via node is indicated to this via node, and the frequency domain resource in described frequency domain resource set is RB;

Base station described in current descending backhaul subframe for carrying first slot transmission relaying scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling.

Via node is according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determines that whether current descending backhaul subframe is the subframe for transmission trunking scheduling downlink resource signaling only;

If determine it is only for transmitting the subframe of scheduling downlink resource signaling, only described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling;

If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling, and described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource set of relaying ascending resource scheduling signaling;

Wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling; Described for carrying the frequency domain resource set of ascending resource scheduling signaling and being that the independent RRC signaling sending from base station respectively obtains for the frequency domain resource set of bearing downlink scheduling of resource signaling, or, described for carrying the frequency domain resource set of ascending resource scheduling signaling and being that the different field of same RRC signaling sending from base station respectively obtains for the frequency domain resource set of bearing downlink scheduling of resource signaling, the frequency domain resource in described frequency domain resource set is RB.

Base station by for via node configuration in control signal region for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling, described for carrying the frequency domain resource set of ascending resource scheduling signaling and being that the RRC signaling that base station is passed through to send respectively to via node is indicated to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling, or, described for carrying the frequency domain resource set of ascending resource scheduling signaling and being that the different field of same RRC signaling that base station is passed through to send to via node is indicated to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling, frequency domain resource in described frequency domain resource set is RB,

Only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, only described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling;

Not only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling, and described for carrying second slot transmission ascending resource scheduling signaling in the frequency domain resource set of ascending resource scheduling signaling.

The control signal checkout gear of a kind of relay return link that the embodiment of the present invention provides, comprising:

Acquiring unit, for obtaining the control signal region for transmission trunking ascending resource scheduling signaling, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling;

Detecting unit, for according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determines whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, in current descending backhaul subframe, described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource in the frequency domain resource set of relaying ascending resource scheduling signaling;

Described acquiring unit, also obtains the frequency domain resource set for carrying ascending resource scheduling signaling for the RRC signaling sending from base station, and the frequency domain resource in described frequency domain resource set is RB.

Acquiring unit, for obtaining the control signal area information for transmission trunking scheduling downlink resource signaling, wherein, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling;

Detecting unit, for base station indication for carrying first time slot blind check scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling;

Described acquiring unit, also obtains the described frequency domain resource set for bearing downlink scheduling of resource signaling for the RRC signaling sending from base station, and the frequency domain resource in described frequency domain resource set is RB.

The control signal transmitting device of a kind of relay return link that the embodiment of the present invention provides, comprising:

Notification unit, for by indicating to this via node for carrying the frequency domain resource aggregate information of relaying ascending resource scheduling signaling in control signal region for via node configuration;

Transmission unit, for determining whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; If current descending backhaul subframe is not only for transmitting the subframe of scheduling downlink resource signaling, described in current descending backhaul subframe for carrying second slot transmission relaying ascending resource scheduling signaling in the set of relaying ascending resource scheduling signaling frequency domain resource;

Described notification unit, also, for indicating to this via node for carrying the frequency domain resource set of ascending resource scheduling signaling described by the RRC signaling sending to via node, the frequency domain resource in described frequency domain resource set is RB.

Notification unit, for by indicating to this via node for carrying the frequency domain resource aggregate information of relaying scheduling downlink resource signaling in control signal region for via node configuration;

Transmission unit, for described in current descending backhaul subframe for carrying first slot transmission relaying scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling;

Described notification unit, also indicates the described frequency domain resource set for bearing downlink scheduling of resource signaling to this via node for the RRC signaling by sending respectively to via node, and the frequency domain resource in described frequency domain resource set is RB.

Acquiring unit, for obtaining the control signal area information for transmission trunking ascending resource scheduling signaling, with the control signal area information for transmission trunking scheduling downlink resource signaling, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling,

Detecting unit, for according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determines that whether current descending backhaul subframe is the subframe for transmission trunking scheduling downlink resource signaling only; If determine it is only for transmitting the subframe of scheduling downlink resource signaling, only described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling; If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling, and described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource set of relaying ascending resource scheduling signaling;

Described acquiring unit, also obtain described for carrying the frequency domain resource set of ascending resource scheduling signaling and the frequency domain resource set for bearing downlink scheduling of resource signaling for the independent RRC signaling sending from base station respectively, or, described in obtaining the different field of the same RRC signaling sending from base station respectively, for carrying the frequency domain resource set of ascending resource scheduling signaling and the frequency domain resource set for bearing downlink scheduling of resource signaling, the frequency domain resource in described frequency domain resource set is RB.

Notification unit, for by for via node configuration in control signal region for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling;

Transmission unit, for determining whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; Only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, only described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling; Not only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling, and described for carrying second slot transmission ascending resource scheduling signaling in the frequency domain resource set of ascending resource scheduling signaling;

Described notification unit, also for the RRC signaling by sending respectively to via node by described for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling; Or, by the different field of same RRC signaling that sends to via node by described for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling, the frequency domain resource in described frequency domain resource set is RB.

In embodiments of the present invention, via node carries out the detection of uplink scheduling signaling in the control signal region for transmission trunking ascending resource scheduling signaling obtaining, and carry out the detection of relaying scheduling downlink resource signaling in the control signal region for transmission trunking scheduling downlink resource signaling obtaining, thereby realize the transmission of ascending resource scheduling signaling and the scheduling downlink resource signaling of relay return link, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

Accompanying drawing explanation

Fig. 1 is the schematic network structure of LTE-A;

Fig. 2 utilizes MBSFN subframe to carry out the schematic diagram of relay link downlink transmission;

Fig. 3 is the schematic diagram that adopts TDM+FDM multiplex mode;

Fig. 4 is the schematic diagram that adopts FDM multiplex mode;

Fig. 5 is transmission DL grant and UL grant employing TDM mode schematic diagram;

Fig. 6 is schematic diagram switching time in DL backhaul subframe;

Fig. 7 is that the embodiment of the present invention detects the schematic flow sheet of relaying ascending resource scheduling signaling as the specific implementation of the control signal detection method of the relay return link of example take via node;

Fig. 8 is the schematic flow sheet that embodiment of the present invention via node detects the specific implementation of the control signal detection method of the relay return link that relaying scheduling downlink resource signaling is example;

Fig. 9 is the schematic flow sheet of the specific implementation of the control signal transmission method of the base station side transmission trunking ascending resource scheduling signaling of the embodiment of the present invention relay return link that is example;

Figure 10 is the schematic flow sheet of the specific implementation of the control signal transmission method of the base station side transmission trunking scheduling downlink resource signaling of the embodiment of the present invention relay return link that is example;

Figure 11 is the schematic flow sheet take via node side detection relaying up-downgoing scheduling of resource signaling as the specific implementation of the control signal detection method of the relay return link of example of the embodiment of the present invention;

Figure 12 is the schematic flow sheet take base station side detected transmission up-downgoing scheduling of resource signaling as the specific implementation of the control signal detection method of the relay return link of example of the embodiment of the present invention;

Figure 13 is symmetry and the asymmetric DL/UL Backhaul sub-frame configuration schematic diagram of TDD system;

Figure 14 is the schematic diagram that only has the situation of DL grant signaling in backhaul descending sub frame;

Figure 15 is the schematic diagram that embodiment of the present invention DL grant and UL grant send and entirely interweave separately in identical frequency domain position set;

Figure 16 is the schematic diagram that has the wasting of resources in UL grant resource area;

Figure 17 is that the embodiment of the present invention is the schematic diagram that DL grant configures more RB resource;

Figure 18 is the structural representation of the control signal checkout gear of a kind of relay return link of embodiment of the present invention trunk side;

Figure 19 is the structural representation of the control signal transmitting device of a kind of back haul link of embodiment of the present invention base station side.

Embodiment

In order to realize the transmission of ascending resource scheduling signaling and scheduling downlink resource signaling of relay return link, in the embodiment of the present invention, base station by for via node configuration for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this relay node equipment for the frequency domain resource set of bearing downlink scheduling of resource signaling, via node carries out the detection of uplink scheduling signaling in the control signal region for transmission trunking ascending resource scheduling signaling obtaining, and carry out the detection of relaying scheduling downlink resource signaling in the control signal region for transmission trunking scheduling downlink resource signaling obtaining, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

Shown in Figure 7, be below to detect the specific implementation of relaying ascending resource scheduling signaling as the control signal detection method of the relay return link of example take via node, specific as follows:

Step 701: via node obtains the control signal area information for transmission trunking ascending resource scheduling signaling.

Described for carry ascending resource scheduling signaling frequency domain resource set can from base station send RRC signaling obtain.

If the frequency domain resource in described frequency domain resource set is RB, the RB in described frequency domain resource set can be continuous on frequency domain, or is discontinuous.

Step 702: via node carries out the detection of uplink scheduling signaling in the control signal region for transmission trunking ascending resource scheduling signaling obtaining, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling.

Step 702 can realize like this: via node, according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determines whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, in current descending backhaul subframe, described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource in the frequency domain resource set of relaying ascending resource scheduling signaling.

The relaying ascending resource scheduling signaling of transmitting in the described control signal region for transmission trunking ascending resource scheduling signaling adopts and entirely interweaves.

Shown in Figure 8, be below the specific implementation that via node detects the control signal detection method of the relay return link that relaying scheduling downlink resource signaling is example, specific as follows:

Step 801: via node obtains the control signal area information for transmission trunking scheduling downlink resource signaling.

The described frequency domain resource set for bearing downlink scheduling of resource signaling can be that the RRC signaling sending from base station obtains.

Step 802: via node carries out the detection of relaying scheduling downlink resource signaling in the control signal region for transmission trunking scheduling downlink resource signaling obtaining, wherein, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

In step 802, can realize like this, base station indication for carrying first time slot blind check scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling.

The relaying scheduling downlink resource signaling of transmitting in the described control signal region for transmission trunking scheduling downlink resource signaling adopts and entirely interweaves.

Shown in Figure 9, be below the specific implementation of the control signal transmission method of the base station side transmission trunking ascending resource scheduling signaling relay return link that is example, specific as follows:

Step 901: base station by indicating to this via node for the frequency domain resource aggregate information of carrying relaying ascending resource scheduling signaling for via node configuration in control signal region.

Described can be that the RRC signaling that base station is passed through to send to via node is indicated to this via node for carrying the frequency domain resource set of ascending resource scheduling signaling.

If the frequency domain resource in described frequency domain resource set is RB, described for the RB of frequency domain resource set that carries ascending resource scheduling signaling on frequency domain for continuous, or be discontinuous.

Step 902: base station in control signal region for carrying transmission trunking ascending resource scheduling signaling in the frequency domain resource of frequency domain resource set of relaying ascending resource scheduling signaling.

Step 902 can realize like this: determine whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; If current descending backhaul subframe is not only for transmitting the subframe of scheduling downlink resource signaling, described in current descending backhaul subframe for carrying second slot transmission relaying ascending resource scheduling signaling in the set of relaying ascending resource scheduling signaling frequency domain resource.

In control signal region, adopt and entirely interweave for carrying the relaying ascending resource scheduling signaling of transmitting in the frequency domain resource of frequency domain resource set of relaying ascending resource scheduling signaling.

Shown in Figure 10, be below the specific implementation of the control signal transmission method of the base station side transmission trunking scheduling downlink resource signaling relay return link that is example, specific as follows:

Step 1001: base station by indicating to this via node for the frequency domain resource aggregate information of carrying relaying scheduling downlink resource signaling for via node configuration in control signal region.

The described frequency domain resource set for bearing downlink scheduling of resource signaling is that the RRC signaling that base station is passed through to send respectively to via node is indicated to this via node.

Step 1002: base station in control signal region for carrying transmission trunking scheduling downlink resource signaling in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

Step 1002 can realize like this: described in current descending backhaul subframe for carrying first slot transmission relaying scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling.

In control signal region, can adopt entirely and interweave for carrying the relaying scheduling downlink resource signaling of transmitting in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

Shown in Figure 11, be below to detect the specific implementation of relaying up-downgoing scheduling of resource signaling as the control signal detection method of the relay return link of example take via node side, specific as follows:

Step 1101: via node is at the control signal area information for transmission trunking ascending resource scheduling signaling obtaining, and for the information in the control signal region of transmission trunking scheduling downlink resource signaling.Wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

Described for carry relaying ascending resource scheduling signaling frequency domain resource set and described can be identical or different for the frequency domain resource set of carrying relaying scheduling downlink resource signaling.

Described is described for carrying the subset of frequency domain resource set of relaying scheduling downlink resource signaling for carrying the frequency domain resource set of relaying ascending resource scheduling signaling.

Described for carrying the frequency domain resource set of ascending resource scheduling signaling and being that the independent RRC signaling sending from base station respectively obtains for the frequency domain resource set of bearing downlink scheduling of resource signaling, or,

Described for carrying the frequency domain resource set of ascending resource scheduling signaling and being that the different field of same RRC signaling sending from base station respectively obtains for the frequency domain resource set of bearing downlink scheduling of resource signaling.

Step 1102: via node carries out the detection of uplink scheduling signaling in the control signal region for transmission trunking ascending resource scheduling signaling obtaining, and carry out the detection of relaying scheduling downlink resource signaling in the control signal region for transmission trunking scheduling downlink resource signaling obtaining.

Step 1102 can realize like this: via node is according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determines that whether current descending backhaul subframe is the subframe for transmission trunking scheduling downlink resource signaling only; If determine it is only for transmitting the subframe of scheduling downlink resource signaling, only described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling; If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling, and described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource set of relaying ascending resource scheduling signaling.

Shown in Figure 12, be below the specific implementation take base station side detected transmission up-downgoing scheduling of resource signaling as the control signal detection method of the relay return link of example, specific as follows:

Step 1201: base station by for via node configuration in control signal region for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling.

Described for carrying the frequency domain resource set of relaying ascending resource scheduling signaling and described identical or different for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

Described for carrying the frequency domain resource set of ascending resource scheduling signaling and can being that the RRC signaling that base station is passed through to send respectively to via node is indicated to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling; Or,

Described for carrying the frequency domain resource set of ascending resource scheduling signaling and can being that the different field of same RRC signaling that base station is passed through to send to via node is indicated to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling.

Step 1202: base station in control signal region for carrying transmission trunking ascending resource scheduling signaling in the frequency domain resource of frequency domain resource set of relaying ascending resource scheduling signaling, and in control signal region for carrying transmission trunking scheduling downlink resource signaling in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

Step 1202 can realize like this: determine whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling, here, can, according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, also can judge according to existing other modes; Only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, only described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling; Not only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling, and described for carrying second slot transmission ascending resource scheduling signaling in the frequency domain resource set of ascending resource scheduling signaling.

Above-mentioned Figure 11 and embodiment illustrated in fig. 12 in, can adopt entirely and interweave in the described different scheduling downlink resource signaling for first slot transmission in the frequency domain resource set of bearing downlink scheduling of resource signaling, also can adopt entirely and interweave for the different ascending resource scheduling signaling of carrying second slot transmission in the frequency domain resource set of ascending resource scheduling signaling described.

Below lift embodiment and further illustrate technical scheme of the present invention.

Embodiment mono-

For TDD system, need to support the symmetrical arrangements of back haul link ascending-descending subframes, as shown in figure 13: case a is the identical configuration of DL/UL backhaul number of subframes; Case b is the configuration of DL backhaul number of sub-frames more than UL backhaul.In case b, in DL backhaul subframe 1, may there is DL grant, also may there is UL grant; And due to the restriction of sequential relationship design, in DL backhaul subframe 2, can only send DL grant, can not there is UL grant.

Be will only have DL grant signaling in part backhaul descending sub frame in TDD system (being called " DL grant only " subframe), and do not have UL grant signaling.A kind of design is now that DL grant sends at first slot, adopts and entirely interweaves (interweave based on RE, can be also unit based on REG or CCE), and second slot sends R-PDSCH, as shown in figure 14.Therefore, distributed the RB of R-PDCCH transmission upper in these " DL grant only " subframes, RN only carries out the blind check of DL grant at first time slot, do not carry out UL grant blind check at corresponding second time slot.Wherein R-PDCCH RB can be continuous on frequency domain, can be also discrete, passes through RRC signaling RN by base station.

Embodiment bis-

In FDD system, if only support the backhaul sub-frame configuration of up-downgoing symmetry, in each DL backhaul subframe, may there is DL grant, also may there is UL grant.If FDD system is also supported asymmetrical backhaul sub-frame configuration, also may there is the situation that part DL backhaul subframe is " DL grant only " subframe.

RN can distribute the ascending-descending subframes sequential relationship of pattern and corresponding standard to determine which DL backhaul subframe is for " DL grant only " according to backhaul ascending-descending subframes, thereby the 2nd slot in these subframes do not carry out the blind check of UL grant.This mechanism is applicable to FDD and TDD system simultaneously.

May there is DL grant for one, may there is again the DL backhaul subframe of UL grant, a kind of design is that DL grant sends at first slot, between different DL grant, adopt entirely interweave (interweave based on RE, can be also unit based on REG or CCE); UL grant sends at second slot, adopts entirely interweave (interweave based on RE, can be also unit based on REG or CCE), as shown in figure 15 between different UL grant.DL grant and the multiplexing identical frequency domain RB position of UL grant in this scheme, now base station only needs to notify a set of frequency domain resource location sets for R-PDCCH, first the slot blind Detecting DL grant of RN in these frequency domain resource set, at corresponding second slot blind Detecting UL grant.

Here, in time domain, there is unbalanced problem in the available resources of DL grant and UL grant, shown in Figure 16, if DL grant and UL grant be multiplexing identical R-PDCCH RB resource collection on frequency domain, cause so the available resources of UL grant than DL grant many 20%～100%, this and common data service are not inconsistent take downlink business as characteristic main and that DL grant message length is large compared with UL grant, can cause the free time of the upper part physical resource of the 2nd slot, and due to interleaving treatment, remaining physical resource can not exist take PRB as unit, cannot be used for R-PDSCH scheduling, the efficiency of transmission of reduction system.

Therefore, the present embodiment proposes a kind of scheme, be that base station is that RN is while dividing the frequency domain resource set that is used in R-PDCCH, be used for the frequency domain resource set of DL grant (take RB as unit, for example be called R-PDCCH RB set1) and for the frequency domain resource set of UL grant (take RB as unit, for example be called R-PDCCH RB set2) notify respectively, both can be identical, also can be different.And multiple DL grant adopt and entirely interweave in set1, multiple UL grant adopt and entirely interweave in set2 simultaneously.As shown in figure 17,

situation, in Set1 a part of RB the 2nd slot can for transmission R-PDSCH, improve system efficiency of transmission.With similar above, the RB in Set1 can be continuous on frequency domain, can be also discontinuous.In Set2, RB can be continuous on frequency domain, can be also discontinuous.Set1 and Set2 by base station by RRC signaling independently to RN.

Corresponding RN behavior is that first RN judges that whether this subframe may exist DL grant and UL grant simultaneously, if not, processes according to aforesaid " DL grant only " subframe situation; If so, first slot blind Detecting DL grant on RB corresponding to Set1, and the 2nd slot blind Detecting UL grant. on RB corresponding to Set2

Can find out by above-described embodiment, in the embodiment of the present invention, the RB resource collection that RN the 1st slot blind check DL grant and the 2nd slot blind check UL grant in DL backhaul subframe use can different (being called Set1 and Set2).The independently RRC signaling that RN sends according to base station is respectively known the RB resource collection of Set1 and Set2.According to the up-downgoing scheduling sequential relationship of DL/UL backhaul sub-frame allocation pattern and standard regulation, " DL grant only " subframe that whether RN judges a DL backhaul subframe; If so, the slot of first in Set1 blind check DL grant only, and the 2nd of any RB the slot blind check UL grant on this subframe frequency domain not; If not, the slot of first in Set1 blind check DL grant, and the 2nd slot blind check UL grant in Set2.Effectively receive DL/UL grant, avoid the wasting of resources, improved system efficiency of transmission.

Shown in Figure 18, the control signal checkout gear of a kind of relay return link of embodiment of the present invention trunk side comprises: acquiring unit 181 and detecting unit 182.

As a kind of execution mode, when trunk side detects relaying ascending resource scheduling signaling, acquiring unit 181, can be for obtaining the control signal region for transmission trunking ascending resource scheduling signaling, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling; Detecting unit 182, can be for carrying out the detection of uplink scheduling signaling in the control signal region for transmission trunking ascending resource scheduling signaling obtaining.

Now, described detecting unit 182, can, for according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determine whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, in current descending backhaul subframe, described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource in the frequency domain resource set of relaying ascending resource scheduling signaling.

Described acquiring unit 181, can be for obtaining the frequency domain resource set for carrying ascending resource scheduling signaling the RRC signaling sending from base station.

If the frequency domain resource in described frequency domain resource set is RB, the RB in described frequency domain resource set is continuous on frequency domain, or is discontinuous.

As a kind of execution mode, when trunk side detects relaying scheduling downlink resource signaling, acquiring unit 181, can be for obtaining the control signal area information for transmission trunking scheduling downlink resource signaling, wherein, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling; Detecting unit 182, can be for carrying out the detection of relaying scheduling downlink resource signaling in the control signal region for transmission trunking scheduling downlink resource signaling obtaining.

Detecting unit 182, can for base station indication for carrying first time slot blind check scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling.

Described acquiring unit 181, can be for obtaining the described frequency domain resource set for bearing downlink scheduling of resource signaling the RRC signaling sending from base station.

As the third implementation, when trunk side detects relaying up-downgoing scheduling of resource signaling, acquiring unit 181, can be for obtaining the control signal area information for transmission trunking ascending resource scheduling signaling, with the control signal area information for transmission trunking scheduling downlink resource signaling, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling, detecting unit 182, can be for carrying out the detection of uplink scheduling signaling in the control signal region for transmission trunking ascending resource scheduling signaling obtaining, and, carry out the detection of relaying scheduling downlink resource signaling in the control signal region for transmission trunking scheduling downlink resource signaling obtaining.

Described detecting unit 182, can be for according to the up-downgoing backhaul sub-frame allocation pattern of configuration and up-downgoing scheduling sequential relationship information, determines that whether current descending backhaul subframe is the subframe for transmission trunking scheduling downlink resource signaling only; If determine it is only for transmitting the subframe of scheduling downlink resource signaling, only described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling; If determine it is not only for transmitting the subframe of scheduling downlink resource signaling, described for carrying first time slot blind check relaying scheduling downlink resource signaling in the frequency domain resource set of relaying scheduling downlink resource signaling, and described for carrying second time slot blind check relaying ascending resource scheduling signaling in the frequency domain resource set of relaying ascending resource scheduling signaling.

Preferably, described can be for described for carrying the subset of frequency domain resource set of relaying scheduling downlink resource signaling for the frequency domain resource set of carrying relaying ascending resource scheduling signaling.

Described acquiring unit 181, can be described for carrying the frequency domain resource set of ascending resource scheduling signaling and the frequency domain resource set for bearing downlink scheduling of resource signaling for obtaining the independent RRC signaling sending from base station respectively, or, the different field of the same RRC signaling sending from base station respectively, obtain described for carrying the frequency domain resource set of ascending resource scheduling signaling and the frequency domain resource set for bearing downlink scheduling of resource signaling.

Shown in Figure 19, the control signal checkout gear of a kind of relay return link that embodiment of the present invention base station side transmission trunking ascending resource scheduling signaling is example comprises: notification unit 191 and transmission unit 192.

As a kind of implementation, notification unit 191 can be for by indicating to this via node for carrying the frequency domain resource aggregate information of relaying ascending resource scheduling signaling for via node configuration in control signal region; Transmission unit 192, can in control signal region for carrying transmission trunking ascending resource scheduling signaling in the frequency domain resource of frequency domain resource set of relaying ascending resource scheduling signaling.

Described notification unit 191, can be for indicating to this via node for the frequency domain resource set of carrying ascending resource scheduling signaling described by the RRC signaling sending to via node.

Described transmission unit 192, can be for determining whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; If current descending backhaul subframe is not only for transmitting the subframe of scheduling downlink resource signaling, described in current descending backhaul subframe for carrying second slot transmission relaying ascending resource scheduling signaling in the set of relaying ascending resource scheduling signaling frequency domain resource.

As another kind of execution mode, when base station side transmission trunking scheduling downlink resource signaling, notification unit 191, for by indicating to this via node for carrying the frequency domain resource aggregate information of relaying scheduling downlink resource signaling in control signal region for via node configuration; Transmission unit 192, can in control signal region for carrying transmission trunking scheduling downlink resource signaling in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

Described notification unit 191, can indicate the described frequency domain resource set for bearing downlink scheduling of resource signaling to this via node for the RRC signaling by sending respectively to via node.

Described transmission unit 192, can for described in current descending backhaul subframe for carrying first slot transmission relaying scheduling downlink resource signaling in the frequency domain resource in the frequency domain resource set of relaying scheduling downlink resource signaling.

In control signal region, adopt and entirely interweave for carrying the relaying scheduling downlink resource signaling of transmitting in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

Described notification unit 191, indicates the described frequency domain resource set for bearing downlink scheduling of resource signaling to this via node for the RRC signaling by sending respectively to via node.

As the third execution mode, when base station side transmission trunking scheduling downlink resource signaling, notification unit 191, for by for via node configuration in control signal region for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling; Transmission unit 192, for in control signal region for carrying transmission trunking ascending resource scheduling signaling in the frequency domain resource of frequency domain resource set of relaying ascending resource scheduling signaling, and in control signal region for carrying transmission trunking scheduling downlink resource signaling in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

Described transmission unit 192, for determining whether current descending backhaul subframe is only for transmitting the subframe of scheduling downlink resource signaling; Only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, only described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling; Not only for transmitting the subframe of scheduling downlink resource signaling in current descending backhaul subframe, described for first slot transmission scheduling downlink resource signaling in the frequency domain resource set of bearing downlink scheduling of resource signaling, and described for carrying second slot transmission ascending resource scheduling signaling in the frequency domain resource set of ascending resource scheduling signaling.

Described notification unit 191, for the RRC signaling by sending respectively to via node by described for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling; Or, by the different field of same RRC signaling that sends to via node by described for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this via node for the frequency domain resource set of bearing downlink scheduling of resource signaling.

The embodiment of the present invention can make via node can effectively receive up-downgoing scheduling of resource signaling, and avoids the wasting of resources, has improved system efficiency of transmission.

Certainly, can pass through above-described embodiment, the control signal transmission system of the relay return link of the corresponding composition embodiment of the present invention, this system comprises base station and via node, specifically can carry out according to the implementation of above-mentioned base station side and via node side alternately, repeat no more here.

In the embodiment of the present invention, base station by for via node configuration for carrying the frequency domain resource set of ascending resource scheduling signaling and indicating to this relay node equipment for the frequency domain resource set of bearing downlink scheduling of resource signaling, via node carries out the detection of uplink scheduling signaling in the control signal region for transmission trunking ascending resource scheduling signaling obtaining, and carry out the detection of relaying scheduling downlink resource signaling in the control signal region for transmission trunking scheduling downlink resource signaling obtaining, wherein, the described control signal region for transmission trunking ascending resource scheduling signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying ascending resource scheduling signaling, the described control signal region for transmission trunking scheduling downlink resource signaling on frequency domain, be positioned at indicated by base station for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.Thereby realize the transmission of ascending resource scheduling signaling and scheduling downlink resource signaling by such scheme, and, the embodiment of the present invention can make via node can effectively receive up-downgoing scheduling of resource signaling, and avoids the wasting of resources, has improved system efficiency of transmission.

Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.

Claims

1. a control signal detection method for relay return link, is characterized in that, the method comprises:

2. method according to claim 1, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, the RB in described frequency domain resource set is continuous on frequency domain, or is discontinuous.

3. method according to claim 1, is characterized in that, the relaying ascending resource scheduling signaling of transmitting in the described control signal region for transmission trunking ascending resource scheduling signaling adopts and entirely interweaves.

4. a control signal detection method for relay return link, is characterized in that, the method comprises:

5. method according to claim 4, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, the RB in described frequency domain resource set is continuous on frequency domain, or is discontinuous.

6. method according to claim 4, is characterized in that, the relaying scheduling downlink resource signaling of transmitting in the described control signal region for transmission trunking scheduling downlink resource signaling adopts and entirely interweaves.

7. a control signal transmission method for relay return link, is characterized in that, the method comprises:

8. method according to claim 7, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, described for the RB of frequency domain resource set that carries ascending resource scheduling signaling on frequency domain for continuous, or be discontinuous.

9. method according to claim 7, is characterized in that, in control signal region, adopts and entirely interweaves for carrying the relaying ascending resource scheduling signaling of transmitting in the frequency domain resource of frequency domain resource set of relaying ascending resource scheduling signaling.

10. a control signal transmission method for relay return link, is characterized in that, the method comprises:

11. methods according to claim 10, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, described for the RB of frequency domain resource set that carries ascending resource scheduling signaling on frequency domain for continuous, or be discontinuous.

12. methods according to claim 10, is characterized in that, in control signal region, adopt and entirely interweave for carrying the relaying scheduling downlink resource signaling of transmitting in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

The control signal detection method of 13. 1 kinds of relay return links, is characterized in that, the method comprises the following steps:

14. methods according to claim 13, is characterized in that, described for carrying the frequency domain resource set of relaying ascending resource scheduling signaling and described identical or different for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

15. methods according to claim 13, is characterized in that, described is described for carrying the subset of frequency domain resource set of relaying scheduling downlink resource signaling for carrying the frequency domain resource set of relaying ascending resource scheduling signaling.

The control signal transmission method of 16. 1 kinds of relay return links, is characterized in that, the method comprises the following steps:

17. methods according to claim 16, is characterized in that, described for carrying the frequency domain resource set of relaying ascending resource scheduling signaling and described identical or different for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

18. methods according to claim 16, is characterized in that, described is described for carrying the subset of frequency domain resource set of relaying scheduling downlink resource signaling for carrying the frequency domain resource set of relaying ascending resource scheduling signaling.

The control signal checkout gear of 19. 1 kinds of relay return links, is characterized in that, comprising:

20. devices according to claim 19, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, the RB in described frequency domain resource set is continuous on frequency domain, or is discontinuous.

21. devices according to claim 19, is characterized in that, the relaying ascending resource scheduling signaling of transmitting in the described control signal region for transmission trunking ascending resource scheduling signaling adopts and entirely interweaves.

The control signal checkout gear of 22. 1 kinds of relay return links, is characterized in that, comprising:

23. devices according to claim 22, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, the RB in described frequency domain resource set is continuous on frequency domain, or is discontinuous.

24. devices according to claim 22, is characterized in that, the relaying scheduling downlink resource signaling of transmitting in the described control signal region for transmission trunking scheduling downlink resource signaling adopts and entirely interweaves.

The control signal transmitting device of 25. 1 kinds of relay return links, is characterized in that, comprising:

26. devices according to claim 25, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, described for the RB of frequency domain resource set that carries ascending resource scheduling signaling on frequency domain for continuous, or be discontinuous.

27. devices according to claim 25, is characterized in that, in control signal region, adopt and entirely interweave for carrying the relaying ascending resource scheduling signaling of transmitting in the frequency domain resource of frequency domain resource set of relaying ascending resource scheduling signaling.

The control signal transmitting device of 28. 1 kinds of relay return links, is characterized in that, comprising:

29. devices according to claim 28, is characterized in that, if the frequency domain resource in described frequency domain resource set is RB, described for the RB of frequency domain resource set that carries ascending resource scheduling signaling on frequency domain for continuous, or be discontinuous.

30. devices according to claim 28, is characterized in that, in control signal region, adopt and entirely interweave for carrying the relaying scheduling downlink resource signaling of transmitting in the frequency domain resource of frequency domain resource set of relaying scheduling downlink resource signaling.

The control signal checkout gear of 31. 1 kinds of relay return links, is characterized in that, comprising:

32. devices according to claim 31, is characterized in that, described for carrying the frequency domain resource set of relaying ascending resource scheduling signaling and described identical or different for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

33. devices according to claim 31, is characterized in that, described is described for carrying the subset of frequency domain resource set of relaying scheduling downlink resource signaling for carrying the frequency domain resource set of relaying ascending resource scheduling signaling.

The control signal transmitting device of 34. 1 kinds of relay return links, is characterized in that, comprising:

35. devices according to claim 34, is characterized in that, described for carrying the frequency domain resource set of relaying ascending resource scheduling signaling and described identical or different for carrying the frequency domain resource set of relaying scheduling downlink resource signaling.

36. devices according to claim 34, is characterized in that, described is described for carrying the subset of frequency domain resource set of relaying scheduling downlink resource signaling for carrying the frequency domain resource set of relaying ascending resource scheduling signaling.