CN107529184B - Signal transmission method and device - Google Patents
Signal transmission method and device Download PDFInfo
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- CN107529184B CN107529184B CN201610459295.8A CN201610459295A CN107529184B CN 107529184 B CN107529184 B CN 107529184B CN 201610459295 A CN201610459295 A CN 201610459295A CN 107529184 B CN107529184 B CN 107529184B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/02—Arrangements for optimising operational condition
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Abstract
The invention provides a signal transmission method and a signal transmission device. Determining uplink available resources by terminal equipment of the ground network according to the use state of the air network, wherein the use state comprises a closing state or an opening state; and terminal equipment of the ground network adopts the uplink available resources to carry out uplink signal transmission. The signal transmission method and the signal transmission device enable the terminal equipment of the ground network to determine the uplink available resources according to the use state of the air network, and improve the resource utilization rate.
Description
Technical Field
The present invention relates to communications technologies, and in particular, to a signal transmission method and apparatus.
Background
In order to realize air-ground communication with the ground and air-air communication with other flight equipment during flight equipment operation, an air wireless network capable of covering a low-altitude air area is needed. Meanwhile, in order to uniformly dispatch airborne communication terminals and ground communication terminals for ground command troops, an air wireless network needs to be fused with a ground wireless network.
In the prior art, a ground wireless network and an air wireless network are independent from each other, and the ground wireless network and the air wireless network use different frequency resources for signal transmission.
By adopting the prior art method, the resource utilization rate is not high.
Disclosure of Invention
The invention provides a signal transmission method and a signal transmission device, which are used for improving the resource utilization rate.
The invention provides a signal transmission method, which comprises the following steps:
determining uplink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state;
and transmitting uplink signals by adopting the uplink available resources.
In an embodiment of the present invention, the determining the uplink available resource according to the activation state of the air network includes:
if the air network is in a closed state, determining that the uplink available resources comprise the uplink resources of the air network;
and if the air network is in the starting state, determining that the uplink available resources do not comprise the uplink resources of the air network.
In an embodiment of the present invention, before determining the uplink available resource according to the activation state of the air network, the method further includes:
receiving a use state notification message of an air network, wherein the use state notification message comprises an air network starting notification message or an air network closing notification message;
and determining the use state of the air network according to the use state notification message.
In the above embodiments of the present invention, the uplink signal includes:
a physical random access channel, a physical uplink control channel, a channel sounding reference signal, and/or a traffic channel.
The invention provides a signal transmission method, which comprises the following steps:
determining downlink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state;
and transmitting downlink signals by adopting the downlink available resources and carrier aggregation.
The present invention provides a signal transmission device, comprising:
the processing module is used for determining uplink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state;
and the sending module is used for adopting the uplink available resources to carry out uplink signal transmission.
In an embodiment of the present invention, the processing module is specifically configured to determine that the uplink available resource includes an uplink resource of the air network if the air network is in a closed state; and if the air network is in the starting state, determining that the uplink available resources do not comprise the uplink resources of the air network.
In an embodiment of the present invention, the method further includes:
the receiving module is used for receiving a use state notification message of the air network, wherein the use state notification message comprises an air network starting notification message or an air network closing notification message;
the processing module is further used for determining the use state of the air network according to the use state notification message.
In the above embodiment of the present invention, the uplink signal includes:
a physical random access channel, a physical uplink control channel, a channel sounding reference signal, and/or a traffic channel.
The present invention provides a signal transmission device, comprising:
the processing module is used for determining downlink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state;
and the sending module is used for transmitting the downlink signal by adopting the downlink available resource through carrier aggregation.
The signal transmission method and the device provided by the invention determine the uplink available resources according to the use state of the air network, wherein the use state of the air network comprises a closing state or an opening state, and the uplink available resources are adopted to carry out uplink signal transmission. The signal transmission method and the signal transmission device provided by the invention determine the uplink available resources according to the use state of the air network, so that the resource utilization rate is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of an application scenario of the signal transmission method and apparatus of the present invention;
FIG. 2 is a flowchart illustrating a signal transmission method according to a first embodiment of the present invention;
fig. 3 is a flowchart illustrating a second embodiment of a signal transmission method according to the present invention;
fig. 4 is a schematic diagram of uplink resource allocation in a normal mode of a ground network terminal device according to the signal transmission method of the present invention;
fig. 5 is a schematic diagram of uplink resource allocation of air network terminal equipment according to the signal transmission method of the present invention;
fig. 6 is a schematic diagram of uplink resource allocation in an air mode of a ground network terminal device according to the signal transmission method of the present invention;
fig. 7 is a flowchart illustrating a third embodiment of a signal transmission method according to the present invention;
FIG. 8 is a schematic structural diagram of a signal transmission apparatus according to a first embodiment of the present invention;
fig. 9 is a schematic structural diagram of a second embodiment of a signal transmission apparatus according to the present invention;
fig. 10 is a schematic structural diagram of a third embodiment of a signal transmission device according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Fig. 1 is a schematic view of an application scenario of the signal transmission method and apparatus of the present invention. As shown in fig. 1, the application scenario of the present invention includes an air network and a ground network, the air network is configured with a layer of coverage of a base station, the ground network is configured with a layer of coverage of a base station, the air network and the ground network are uniformly scheduled and mutually fused through a core network, and a terminal device can access the air network or the ground network.
Fig. 2 is a flowchart illustrating a signal transmission method according to a first embodiment of the present invention. As shown in fig. 2, the signal transmission method includes the steps of:
s201: and determining the uplink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state.
Specifically, this step is performed by a terminal device of the ground network. The method comprises the steps that terminal equipment of a ground network judges the use state of the air network, wherein when no terminal equipment is accessed into the air network, the air network is in a closed state; when the terminal equipment accesses the air network, the air network is in a starting state.
The method for determining the use state of the air network includes, but is not limited to, the following methods:
one possible implementation is as follows: the ground network and the air network are simultaneously connected with system side equipment, and the system side equipment can be: a core network, a network manager or an application layer network element, and realizes communication and resource allocation through system side equipment. The system side equipment judges whether terminal equipment is accessed in the air network or not through the air network base station, if no terminal equipment is accessed in the system side equipment through the air network base station, the air network is in a closed state at the moment, if terminal equipment is accessed in the system side equipment through the air network base station, the air network is in an enabled state, and the system side equipment sends the state of the air network to the ground network base station in real time, so that the ground network terminal equipment can obtain a real-time result through the ground network base station when needing to obtain the state of the air network.
Another possible implementation is: the terminal equipment of the ground network sends a request judgment message to the air network base station through the ground network base station, the air network base station receives the request judgment message and judges whether the air network is in a closed state or an enabled state, and the using state of the air network is returned to the terminal equipment of the ground network through the ground network base station.
Meanwhile, the uplink available resources include, but are not limited to, frequency resources, space resources, hardware device resources, and the like used when terminal devices of the terrestrial network communicate. For example: the terminal equipment of the ground network uses different uplink frequency resources when the air network is in a closed state and an open state, and the uplink frequency used by the terminal equipment of the ground network when the air network is in the closed state is recorded as f1And the uplink frequency used when the air network is in the starting state is recorded as f2. The ground network terminal equipment needs to judge the state of the air network to determine the available uplink frequency, and uses the uplink frequency f when the air network is in a closed state1Using the uplink frequency f when the air network is in the active state2。
S202: and performing uplink signal transmission by adopting the uplink available resources.
The terminal device of the terrestrial network performs uplink signal transmission using the uplink available resource determined in S101. For example, the terminal device of the ground network determines that the air network is in the closed state and determines that the uplink available frequency resource is f1Then the uplink signal passes through the uplink available frequency resource f1And carrying out transmission.
Further, the determining the uplink available resource according to the usage state of the air network includes: if the air network is in a closed state, determining that the uplink available resources comprise the uplink resources of the air network; and if the air network is in the starting state, determining that the uplink available resources do not comprise the uplink resources of the air network.
Specifically, the uplink resource used by the terminal device of the air network is used when the terminal device accesses the air network. When the ground network is congested or the uplink resources of the terminal devices of the ground network are in shortage and the air network has no service, the terminal devices of the ground network can use the uplink resources of the air network to perform uplink signal transmission; when the uplink resource of the air network is used, the terminal equipment of the ground network does not use the uplink resource of the air network for uplink signal transmission.
One possible implementation is: the uplink frequency of the terminal equipment of the ground network is denoted as f3And the uplink frequency of the terminal equipment of the air-to-air network is recorded as f4. At the first moment, no terminal equipment of the air network is accessed and is in a closed state, and the terminal equipment of the ground network determines the uplink frequency of the terminal equipment of the ground network as f according to the closed state of the air network3+f4(ii) a At the second moment, if the air network has equipment access, the air network is in the starting state, and at the moment, the terminal equipment of the air network uses the uplink frequency f of the air network4The terminal equipment of the ground network adjusts the uplink frequency of the terminal equipment of the ground network to f according to the starting state of the air network3Avoiding and abandoning the uplink frequency f of the terminal equipment using the air network4。
Another possible implementation is: the ground network provides a communication network covered on the ground, the ground network terminal equipment is started and resides in the ground network, and a normal mode and an air mode using air network resources are set. The normal mode is that the air network has no access equipment, namely no flight equipment is used when the air network is lifted, and the terminal equipment of the ground network uses the uplink resource of the terminal equipment of the ground network and uses the uplink resource of the terminal equipment of the air network simultaneously when transmitting uplink signals; the air mode is used when terminal equipment is accessed, the ground network base station configures an air mode resource pool, the resource pool contains uplink resources available for the air mode, the air mode resource pool and a pre-configured resource pool of the air network are mutually exclusive, and when the air mode is started, the terminal equipment of the ground network avoids using the uplink resources of the terminal equipment of the air network. And the terminal equipment of the ground network performs mutual switching between the air mode and the normal mode according to the use state of the air network.
In this embodiment, the terminal device of the ground network determines the uplink available resource of the terminal device of the ground network according to the use state of the air network, where the use state includes a shutdown state or an activation state, and performs uplink signal transmission using the determined uplink available resource. Furthermore, the terminal equipment of the ground network uses the uplink available resource of the terminal equipment of the air network when the air network is in a closed state, thereby improving the resource utilization efficiency.
Fig. 3 is a flowchart illustrating a second embodiment of a signal transmission method according to the present invention. As shown in fig. 3, the signal transmission method includes the steps of:
s301: and receiving a use state notification message of the air network, wherein the use state notification message comprises an air network enabling notification message or an air network closing notification message.
Wherein the usage state notification information is transmitted by the terminal device. Specifically, the air network activation notification message is a message for notifying the air network activation when the air network is in a closed state and flying equipment is about to ascend and descend; the air network closing notification message is a message notifying the air network to close when the air network is in the starting state and the last flight device is about to land without using the air network.
One possible implementation manner of this step is: each flight device is simultaneously provided with an air network terminal device and a ground network terminal device, the air network terminal device is accessed to an air network, the ground network terminal device is accessed to a ground network, and the two terminal devices work simultaneously. Before the flying equipment takes off, the ground network terminal equipment sends an air network starting message to a ground network base station, the ground network starts an air mode, and the terminal equipment of the ground network avoids the uplink available resources of the terminal equipment of the air network; after the flight equipment falls, the ground network terminal equipment is used for sending an air network closing message to the ground network base station, the ground network starts a normal mode, and the terminal equipment of the ground network uses all uplink available resources of the terminal equipment of the ground network and also uses all uplink available resources of the terminal equipment of the air network. Optionally, when the flying equipment is in a ground or low-altitude area, cluster group calling is performed through ground network terminal equipment; when the flight equipment is in a take-off or landing state, called voice of the time-space network terminal equipment and the ground network terminal equipment is played simultaneously, and the air-space network terminal equipment and the ground network terminal equipment are subjected to right scrambling or right releasing simultaneously.
S302: and determining the use state of the air network according to the use state notification message.
The usage state notification message is sent by the terminal device in S301, and the terminal device of the local area network or the terminal device of the air network can determine the usage state of the air network when receiving the usage state notification message.
For example: when the using state notification message sent by the flight equipment through the terminal equipment of the ground network is an air network starting notification message, and before a ground network base station does not receive the air network closing notification message sent by the flight equipment through the terminal equipment of the ground network, the state of the air network is determined to be a starting state; when the use state notification message sent by the flight equipment through the terminal equipment of the ground network is an air network closing notification message, and before the ground network base station receives no air network starting notification message, the state of the air network is determined to be a closing state.
S303: and determining the uplink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state.
The step S201 is described in detail, and is not described herein again.
S304: and performing uplink signal transmission by adopting the uplink available resources.
The step S202 is described in detail, and is not described herein again.
In the foregoing embodiments, further, the uplink signal includes: a Physical Random Access Channel (PRACH), a Physical Uplink Control Channel (PUCCH), a Sounding Reference Signal (SRS), and/or a traffic Channel.
The PRACH is an access channel when a call is initiated in communication, the PUCCH is a control channel carrying uplink information, and the SRS is a channel sounding reference signal. In this embodiment, the uplink available resources such as the PRACH, PUCCH, SRS, and/or traffic channel of the terminal device of the ground network may be determined according to the usage state of the air network.
One possible implementation is: the PRACH and the PUCCH of the ground network adopt a frequency division mode, and the configuration of the PRACH and the PUCCH is the same when the air network is in an enabled state or a closed state, and is different from the PRACH and the PUCCH which are configured in advance by the air network. The ground network service channel uses the channel resources except the PUCCH and the PRACH when the air network is in a closed state, and avoids the channel resources of the PUCCH, the PRACH, the SRS and the service channel when the air network is in an activated state. The SRS of the ground network adopts a time division mode, and the SRS of the air network also adopts the time division mode and is pre-configured with available resources; when the air network is in a closed state, the ground network SRS avoids the resources of the air network and avoids the transmission of the ground network PUCCH; when the air network is in the starting state, the SRS of the ground network needs to be reconfigured, the air network resource is avoided, and meanwhile, the SRS is not sent in the discontinuous PUSCH of the ground network. Meanwhile, in order to avoid discontinuous ground network PUSCH resources caused by the air-to-air network PUCCH, the SRS can not be transmitted in the discontinuous PUSCH resources, and the base station can not schedule the discontinuous PUSCH through the SRS, so that the PUSCH resources without SRS transmission need to be scheduled blindly.
For example, fig. 4 is a schematic diagram of uplink resource configuration in a normal mode of the ground network terminal device according to the signal transmission method of the present invention, and the normal mode of the ground network terminal device refers to a mode in which the air network is in a closed state. Fig. 5 is a schematic diagram of uplink resource allocation of air network terminal equipment according to the signal transmission method of the present invention. Fig. 6 is a schematic diagram of uplink resource allocation in the air mode of the ground network terminal device according to the signal transmission method of the present invention, where the air mode of the ground network terminal device refers to the mode when the air network is in the on state. Specifically, as shown in fig. 4, the uplink bandwidth of the ground network terminal device is 10M, and the air network is in a closed state. All 10M uplink bandwidths are used by the ground network terminal equipment; the PRACH and the PUCCH adopt a frequency division mode, and the pre-allocated frequency resources of the PRACH and the PUCCH of the hollow middle network terminal equipment in the figure 5 are avoided; the SRS adopts a time division mode to avoid all PUCCH resources of a ground network for transmission; the Physical Uplink Shared Channel (PUSCH) uses all other remaining frequency resources. As shown in fig. 5, the air network terminal device pre-configures uplink resources, including PUCCH, PRACH, SRS, and the like, and when the terminal device accesses the air network, the terminal device of the air network uses the pre-configured resources to perform uplink signal transmission. Accordingly, as shown in fig. 6, when the air network is in the enabled state, the ground network terminal device enables the air mode, and its uplink resource needs to avoid the uplink resource of the terminal device of the air network, where the PRACH and the PUCCH are the same as the normal mode, the SRS needs to be reallocated, and the uplink resource of the air network terminal device is avoided, and meanwhile, the SRS is not transmitted in the discontinuous PUSCH of the ground network.
In this embodiment, the terminal device of the ground network determines the use state of the air network according to the air network start notification message or the air network close notification message, determines the uplink available resource of the terminal device of the ground network according to the use state of the air network, and performs uplink signal transmission by using the uplink available resource, and the terminal device of the ground network uses the uplink available resource of the terminal device of the air network when the air network is in the close state, thereby improving the resource utilization efficiency.
Fig. 7 is a flowchart illustrating a third embodiment of a signal transmission method according to the present invention. As shown in fig. 7, the signal transmission method includes the steps of:
s701: determining the downlink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state.
Specifically, this step is performed by a base station of the terrestrial network. The base station of the ground network judges the use state of the air network, wherein when no equipment is accessed into the air network, the air network is in a closed state; when the air network has the equipment access, the air network is in the starting state.
The method for determining the use state of the air network includes, but is not limited to, the following methods:
one possible implementation is as follows: the base station of the ground network and the base station of the air network are simultaneously connected with the system side device, and the system side device may be: a core network, a network manager or an application layer network element, and realizes communication and resource allocation through system side equipment. The system side equipment judges whether equipment access exists in the air network through a base station of the air network, if no equipment accesses the system side equipment through the air network base station, the air network is in a closed state, if equipment accesses the system side equipment through the air network base station, the air network is in an enabled state, and the system side equipment sends the state of the air network to a ground network base station in real time, so that the ground network base station can obtain the state of the air network in real time.
Another possible implementation is: and the base station of the ground network sends a judgment message to the base station of the air network, and the air network base station receives the judgment message, judges whether the air network is in a closed state or in an enabled state and returns the state information of the air network to the base station of the ground network.
Meanwhile, the downlink available resources include, but are not limited to, frequency resources, space resources, hardware device resources, and the like used when the ground network base station communicates. For example: the base station of the ground network uses different downlink frequency resources when the air network is in a closed state and an open state, and the downlink frequency used by the base station of the ground network when the air network is in the closed state is recorded as f1The downlink frequency used when the air network is in the active state is f2. When the base station of the ground network judges the available downlink frequency, the state of the air network needs to be judged, and when the air network is in the closed state, the base station of the ground network uses the downlink frequency f1The downlink frequency f used by the base station of the air network when the air network is in the active state2。
S702: and transmitting downlink signals by adopting the downlink available resources and carrier aggregation.
The base station of the terrestrial network performs downlink signal transmission using the downlink available resource determined in S701. Specifically, because the same frequency interference of the downlink signal transmission channel is large, in order to avoid downlink interference of the air interface of the air network and the ground network, the downlink signal transmission of the base station of the ground network and the downlink signal transmission of the base station of the air network adopt different frequencies. When the air network is in a closed state, the base station of the ground network uses the frequency resource of the air network base station to transmit downlink signals through carrier aggregation; when the air network is in the starting state, the base station of the ground network does not use the frequency resource of the air network base station, and the base station of the ground network and the base station of the air network perform pilot frequency transmission on downlink signals.
One possible implementation is, for example: the carrier frequency used by the ground network downlink is f1And f2And will have a frequency f1The carrier configuration of (2) is a terrestrial network downlink main carrier. The carrier frequency used by the air network downlink is f2And f1And will have a frequency f2The carrier configuration of (2) is the downlink main carrier of the air-to-air network. When the air network is in the open state, the ground network preferentially descends the main carrier f in the ground network1The air network preferentially downlink the main carrier f in the air network2The frequency of (2) schedules users, thereby avoiding interference between the air network and the ground network.
Optionally, in another possible implementation manner of the foregoing embodiment, the downlink available resource is adopted, and downlink signal transmission is performed in a pilot frequency manner. Then, at this time, for example: the downlink frequencies of the air network and the ground network respectively use f1、f2Frequency.
In this embodiment, the base station of the ground network determines the downlink available resource of the base station of the ground network according to the usage state of the air network, where the usage state includes a shutdown state or an activation state, and performs downlink signal transmission using the determined downlink available resource. Furthermore, the base station of the ground network can use the downlink available resources of the base station of the air network in a carrier aggregation mode when the air network is in a closed state, so that the resource utilization efficiency is improved.
Fig. 8 is a schematic device diagram of a signal transmission device according to a first embodiment of the invention. As shown in fig. 8, the signal transmission apparatus includes the following modules: a processing module 801 and a sending module 802, where the processing module 801 is configured to determine an uplink available resource according to a use state of an air network, where the use state includes a shutdown state or an activation state; the sending module 802 is configured to perform uplink signal transmission by using the uplink available resource.
In the foregoing embodiment, the processing module is specifically configured to determine that the uplink available resource includes an uplink resource of the air network if the air network is in a closed state; and if the air network is in the starting state, determining that the uplink available resources do not comprise the uplink resources of the air network.
The apparatus of this embodiment may be correspondingly used to implement the technical solution of the method of the embodiment in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 9 is a schematic diagram of a signal transmission apparatus according to a second embodiment of the present invention. As shown in fig. 9, the signal transmission apparatus includes the following modules: the system comprises a receiving module 901, a processing module 902 and a sending module 903, wherein the receiving module 901 is configured to receive a use state notification message of the air network, where the use state notification message includes an air network enabling notification message or an air network closing notification message; the processing module is also used for determining the use state of the air network according to the use state notification message; the processing module 902 is configured to determine an uplink available resource according to a usage state of an air network, where the usage state includes a shutdown state or an activation state; the sending module 903 is configured to perform uplink signal transmission by using the uplink available resource.
The apparatus of this embodiment may be correspondingly used to implement the technical solution of the method of the embodiment in fig. 3, and the implementation principle and the technical effect are similar, which are not described herein again.
In the foregoing embodiments, further, the uplink signal includes: PRACH, PUCCH, SRS, and/or traffic channels.
The apparatus of this embodiment can be correspondingly used to implement the technical solutions of fig. 4 to 6, and the implementation principle and the technical effect are similar, which are not described herein again.
Fig. 10 is a schematic diagram of a third embodiment of a signal transmission apparatus according to the present invention. As shown in fig. 10, the signal transmission apparatus includes the following modules: the system comprises a processing module 1001 and a sending module 1002, wherein the processing module 1001 is configured to determine a downlink available resource according to a use state of an air network, where the use state includes a shutdown state or an activation state; the sending module 1002 is configured to perform downlink signal transmission by carrier aggregation using the downlink available resource.
The apparatus of this embodiment may be correspondingly used to implement the technical solution of the method of the embodiment in fig. 7, and the implementation principle and the technical effect are similar, which are not described herein again.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. A signal transmission method, comprising:
determining uplink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state, and the uplink available resources comprise frequency resources, space resources and hardware equipment resources used by terminal equipment of a ground network during communication;
adopting the uplink available resource to transmit uplink signals;
the uplink signal includes:
a physical random access channel, a physical uplink control channel, a channel sounding reference signal and/or a traffic channel;
and determining a physical random access channel, a physical uplink control channel, a channel sounding reference signal and/or a service channel of the terminal equipment of the ground network according to the using state of the air network.
2. The method of claim 1, wherein determining the uplink available resources according to the activation status of the air network comprises:
if the air network is in a closed state, determining that the uplink available resources comprise the uplink resources of the air network;
and if the air network is in the starting state, determining that the uplink available resources do not comprise the uplink resources of the air network.
3. The method according to claim 1, wherein before determining the uplink available resources according to the activation status of the air network, further comprising:
receiving a use state notification message of an air network, wherein the use state notification message comprises an air network starting notification message or an air network closing notification message;
and determining the use state of the air network according to the use state notification message.
4. A signal transmission method, comprising:
determining downlink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state; the downlink available resources comprise frequency resources, space resources and hardware equipment resources used in the communication of the ground network base station;
and transmitting downlink signals by adopting the downlink available resources and carrier aggregation.
5. A signal transmission apparatus, comprising:
the processing module is used for determining uplink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state;
a sending module, configured to transmit an uplink signal by using the uplink available resource;
the uplink signal includes:
a physical random access channel, a physical uplink control channel, a channel sounding reference signal and/or a traffic channel;
and determining a physical random access channel, a physical uplink control channel, a channel sounding reference signal and/or a service channel of the terminal equipment of the ground network according to the using state of the air network.
6. The apparatus according to claim 5, wherein the processing module is specifically configured to determine that the uplink available resources include uplink resources of the air network if the air network is in a closed state; and if the air network is in the starting state, determining that the uplink available resources do not comprise the uplink resources of the air network.
7. The apparatus of claim 5, further comprising:
the receiving module is used for receiving a use state notification message of the air network, wherein the use state notification message comprises an air network starting notification message or an air network closing notification message;
the processing module is further used for determining the use state of the air network according to the use state notification message.
8. A signal transmission apparatus, comprising:
the processing module is used for determining downlink available resources according to the use state of the air network, wherein the use state comprises a closing state or an opening state;
and the sending module is used for transmitting the downlink signal by adopting the downlink available resource through carrier aggregation.
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| CN103404188A (en) * | 2012-12-27 | 2013-11-20 | 华为技术有限公司 | Spectrum resource sharing method and base station |
| CN103796212A (en) * | 2012-10-26 | 2014-05-14 | 上海贝尔股份有限公司 | Communication method |
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| CN104380782A (en) * | 2012-07-02 | 2015-02-25 | 罗克韦尔柯林斯公司 | Terrestrial communications network suitable for providing air-to-ground connectivity |
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