CN107659996B - Channel access method and equipment - Google Patents
Channel access method and equipment Download PDFInfo
- Publication number
- CN107659996B CN107659996B CN201710766866.7A CN201710766866A CN107659996B CN 107659996 B CN107659996 B CN 107659996B CN 201710766866 A CN201710766866 A CN 201710766866A CN 107659996 B CN107659996 B CN 107659996B
- Authority
- CN
- China
- Prior art keywords
- power
- channel
- target
- channel access
- spectrum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 52
- 238000001228 spectrum Methods 0.000 claims abstract description 118
- 230000005540 biological transmission Effects 0.000 claims description 42
- 230000006870 function Effects 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 238000004891 communication Methods 0.000 description 7
- 238000004590 computer program Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 230000011664 signaling Effects 0.000 description 3
- 238000000926 separation method Methods 0.000 description 2
- 230000005236 sound signal Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000010897 surface acoustic wave method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/002—Transmission of channel access control information
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the invention discloses a channel access method and equipment. The channel access method comprises the following steps: acquiring target power, wherein the target power is the power of a channel where a monitored target frequency spectrum is located; and determining the range of the transmitting power according to whether the target power is greater than the preset power, wherein the transmitting power is the transmitting power of the channel access equipment on the channel where the target frequency spectrum is located. By adopting the embodiment of the invention, the frequency spectrum utilization rate can be effectively improved, and the frequency spectrum efficiency is improved.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a channel access method and device.
Background
With the dramatic increase in communication traffic, licensed spectrum appears to be less and less sufficient to provide higher network capacity. In order to further increase the utilization of spectrum resources, it becomes especially important how unlicensed spectrum is used with the help of licensed spectrum, such as 2.4GHz band and 5GHz band. These unlicensed spectrum are currently used mainly by wireless fidelity (WiFi), bluetooth, radar, and medical systems.
Under the conventional LTE-assisted condition, the unlicensed spectrum is in a lower frequency band, if the unlicensed spectrum needs to be accessed, a first listening (sense) is needed, and when the power of the monitored channel is lower than a threshold value within a period of time, it indicates that the channel is in an idle state, and the channel may be transmitted on the channel. Otherwise, it cannot be transmitted. That is, a device using the unlicensed spectrum needs to Listen to whether the spectrum is idle before transmitting, that is, needs to support "Listen Before Talk (LBT)" in order to avoid causing interference to other devices using the unlicensed spectrum.
However, in a New Radio (NR), when a high frequency is used, a high-frequency path loss, a penetration loss, and the like are large, a coverage area is small, and when it is detected that an unlicensed spectrum channel is occupied, other devices cannot be used, which may cause low spectrum efficiency.
Disclosure of Invention
The embodiment of the invention provides a channel access method and device, which are used for solving the problem of low spectrum efficiency caused by the fact that an unlicensed spectrum is occupied when the unlicensed spectrum is in a higher frequency band.
In a first aspect, an embodiment of the present invention provides a channel access method, including:
acquiring target power, wherein the target power is the power of a channel where a monitored target frequency spectrum is located;
and determining the range of the transmitting power according to whether the target power is greater than the preset power, wherein the transmitting power is the transmitting power of the channel access equipment on the channel where the target frequency spectrum is located.
In an optional implementation manner, the determining the range of the transmission power according to whether the target power is greater than a preset power includes:
determining the range of the transmitting power to be not higher than a first power under the condition that the target power is larger than the preset power;
and determining the range of the transmitting power to be not higher than a second power under the condition that the target power is not larger than the preset power, wherein the first power is smaller than the second power.
In an optional implementation, the method further includes:
and under the condition that the range of the transmitting power is not higher than the first power, the time for the channel access equipment to occupy the channel where the target frequency spectrum is located is not less than the first duration.
In an optional implementation, the method further includes:
and under the condition that the range of the transmitting power is not higher than the second power, the time for the channel access equipment to occupy the channel where the target frequency spectrum is located is not more than the second duration.
In an optional implementation manner, the first power is greater than or equal to 0, and both the first power and the second power are less than or equal to a maximum transmission power of the channel access device.
In an optional implementation manner, the channel in which the target spectrum is located is a channel corresponding to an unlicensed spectrum.
In an optional implementation manner, the channel access device includes: access network equipment or terminal equipment.
In a second aspect, an embodiment of the present invention provides a channel access device, including:
an obtaining unit, configured to obtain a target power, where the target power is a power of a channel where a monitored target frequency spectrum is located;
a determining unit, configured to determine a range of transmission power according to whether the target power is greater than a preset power, where the transmission power is transmission power of the channel access device on a channel where the target spectrum is located.
In an optional implementation manner, the determining unit is specifically configured to determine that the range of the transmission power is not higher than a first power when the target power is greater than the preset power;
the determining unit is specifically configured to determine that the range of the transmit power is not higher than a second power when the target power is not greater than the preset power, where the first power is smaller than the second power.
In an optional implementation manner, when the range of the transmission power is not higher than the first power, the time for the channel access device to occupy the channel where the target spectrum is located is not less than the first duration.
In an optional implementation manner, when the range of the transmission power is not higher than the second power, the time for the channel access device to occupy the channel where the target spectrum is located is not greater than the second duration.
In an optional implementation manner, the first power is greater than or equal to 0, and both the first power and the second power are less than or equal to a maximum transmission power of the channel access device.
In an optional implementation manner, the channel in which the target spectrum is located is a channel corresponding to an unlicensed spectrum.
In an optional implementation manner, the channel access device includes: access network equipment or terminal equipment.
In a third aspect, an embodiment of the present invention further provides a channel access device, including: a processor, a transceiver and a memory, the processor, the transceiver and the memory being interconnected, wherein the memory is configured to store application program code, and the processor is configured to invoke the program code to perform the method of the first aspect.
In a fourth aspect, the present invention also provides a computer-readable storage medium, in which a computer program is stored, the computer program including program instructions, which, when executed by a processor, cause the processor to execute the method of the first aspect.
By implementing the embodiment of the invention, when the channel of the target frequency spectrum is positioned in a higher frequency band, the range of the transmitting power of the transmitting end can be determined according to the range of the power of the channel of the target frequency spectrum, so that the problem of low frequency spectrum efficiency caused by the fact that other equipment cannot be accessed due to the fact that the unlicensed frequency spectrum is occupied when the unlicensed frequency spectrum is positioned in the higher frequency band is solved, the frequency spectrum utilization rate can be effectively improved, and the frequency spectrum efficiency is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present invention, the drawings required to be used in the embodiments or the background art of the present invention will be described below.
Fig. 1 is a flowchart illustrating a channel access method according to an embodiment of the present invention;
fig. 2 is a flowchart of another channel access method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a specific scenario of a channel access method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a channel access device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another channel access device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a base station according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.
It should be noted that the detailed description set forth in connection with the appended drawings is intended as a description of various configurations and is not intended to represent the only configurations in which the concepts described herein may be practiced. The apparatus embodiments and method embodiments described herein are described in the following detailed description and illustrated in the accompanying drawings by various blocks, modules, units, components, circuits, steps, processes, algorithms, etc. (collectively referred to as "elements"). These elements may be implemented using electronic hardware, computer software, or any combination thereof. Whether such elements are implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. The terms first, second, etc. in the description and claims of the present invention and in the drawings of the specification, if used in describing various aspects, are used for distinguishing between different objects and not for describing a particular order.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.
It should be noted that, unless otherwise specified, various technical features in the embodiments of the present invention may be regarded as being capable of being combined or coupled with each other as long as the combination or coupling is not technically impossible to implement. While certain exemplary, optional, or preferred features may be described in combination with other features in various embodiments of the invention for a more complete description of the invention, it is not necessary for such combination to be considered, and it is to be understood that the exemplary, optional, or preferred features and the other features may be separable or separable from each other, provided that such separation or separation is not technically impractical. Some functional descriptions of technical features in method embodiments may be understood as performing the function, method, or step, and some functional descriptions of technical features in apparatus embodiments may be understood as performing the function, method, or step using the apparatus.
Referring to fig. 1, fig. 1 is a flowchart illustrating a channel access method according to an embodiment of the present invention, where the channel access method is applicable to a channel access device, and specifically, the channel access device may include: the access network device or the terminal device, that is, the channel access method may be applied to the access network device and may also be applied to the terminal device.
In case the channel access device is an access network device, for example, the access network device may be a base station (eNodeB, eNB); when the communication system is based on the 5G, the access network device may be a base station (gNB) adapted to a new air interface; in other technologies, the access network device may have other names, which are not illustrated herein.
In the case that the channel access Device is a terminal Device, the terminal Device may be a User Equipment (UE), such as a Mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Mobile Internet Device (MID), a wearable Device (e.g., a smart watch (e.g., iWatch), a smart bracelet, a pedometer, etc.), and the like.
As shown in fig. 1, the channel access method may include:
101. acquiring target power, wherein the target power is the power of a channel where a target frequency spectrum is monitored;
specifically, the channel where the target spectrum is located is a channel corresponding to the unlicensed spectrum.
In practical applications, the access network device and the terminal device transmit data (data includes Reference signals, Control signaling and data traffic, i.e. Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Channel State Reference Signal (CSI-RS), Sounding Reference Signal (SRS), Scheduling Request (Scheduling Request, SR), Demodulation Reference Signal (Demodulation Reference Signal, DMRS), channels including Physical Broadcast Channel (PBCH), Physical Downlink Control Channel (PDCCH), enhanced Physical Downlink Control Channel (PDSCH), PUCCH); when a Physical Uplink Shared Channel (PUSCH), a reference signal and various channels related to sidelink, and various other reference signals or channels not listed, etc.), it is first necessary to monitor the usage status of the unlicensed spectrum Channel, and then to transmit data using the unlicensed spectrum Channel. Therefore, the embodiment of the invention monitors the channel where the target frequency spectrum is located, and then obtains the power of the channel where the target frequency spectrum is located. The embodiment of the invention does not limit the method for monitoring the channel of the target frequency spectrum by the channel access equipment
It is to be understood that the method for obtaining the target power is not limited in the embodiments of the present invention. If the channel access device is an access network device, the receiver of the access network device may be used to receive the energy on the channel where the target spectrum is located, so as to obtain the target power; when the channel access device is a terminal device, the receiver of the terminal device may be used to receive the energy on the channel where the target spectrum is located, so as to obtain the target power.
102. And determining the range of the transmitting power according to whether the target power is greater than the preset power, wherein the transmitting power is the transmitting power of the channel access equipment on the channel where the target frequency spectrum is located.
In this embodiment of the present invention, the preset power may include a first preset power and a second preset power, and if the channel access device is an access network device, the preset power may be the first preset power; when the channel access device is a terminal device, the preset power may be a second preset power. In a specific implementation, the preset power may be set according to a bandwidth of the target spectrum, for example, the larger the bandwidth, the larger the preset power value. The predetermined power may be set according to different devices, and if the channel access device is a terminal device, the second predetermined power may be-62 dBm. Of course, the preset power may also be set to be the same power according to different devices, and the embodiment of the present invention is not limited in particular.
By implementing the embodiment of the invention, the range of the transmitting power of the channel access equipment can be determined according to the range of the channel power of the target spectrum, namely, signals can be transmitted on the channel corresponding to the unlicensed spectrum, or resources on the channel corresponding to the unlicensed spectrum are used. Therefore, the problem of low spectrum efficiency caused by the fact that other equipment cannot be accessed due to the fact that the unlicensed spectrum is occupied when the unlicensed spectrum is in a higher frequency band is solved, the spectrum utilization rate can be effectively improved, and the spectrum efficiency is improved.
Referring to fig. 2, fig. 2 is a flowchart illustrating another channel access method according to an embodiment of the present invention, where the channel access method is applicable to a channel access device, and specifically, the channel access device may include: access network equipment or terminal equipment. As shown in fig. 2, the channel access method may include:
201. acquiring target power, wherein the target power is the power of a channel where a target frequency spectrum is monitored;
specifically, the channel where the target spectrum is located is a channel corresponding to the unlicensed spectrum.
202. Determining the range of the transmitting power to be not higher than a first power under the condition that the target power is larger than the preset power;
203. determining the range of the transmitting power to be not higher than a second power under the condition that the target power is not larger than the preset power;
wherein the first power is less than the second power.
Specifically, the first power is greater than or equal to 0, and both the first power and the second power are less than or equal to the maximum transmission power of the channel access device.
In the embodiment of the present invention, the maximum transmission power may be the maximum transmission power that can be transmitted by the channel access device itself, and if the channel access device is a terminal device, the maximum transmission power of the terminal device may be 23 dBm. In cellular systems, power control of the transmit power of access network devices, such as base stations, is required to prevent adjacent channel interference and near-far effects. Therefore, in the embodiment of the present invention, the maximum transmission power may also be the maximum transmission power that can be transmitted by the channel access device, such as the access network device or the terminal device, after power control, for example, the maximum transmission power of the terminal device after power control is 23dBm, and after power control, the maximum transmission power may be only 22 dBm. Therefore, in this embodiment of the present invention, the maximum transmission power may include the maximum transmission power that can be transmitted by the channel access device itself, and may also include the maximum transmission power that can be transmitted by the channel access device after power control.
In practical applications, the transmission power of the access network device, such as the base station, may be 43dBm, and the transmission power of the terminal device may be 23dBm, so that in the embodiment of the present invention, the first power and the second power may be different according to different channel access devices. If the channel access device is a terminal device, the first power may be 20dBm, and the second power may be 23 dBm; when the channel access device is an access network device, the first power may be 40dBm, and the second power may be 43 dBm.
By implementing the embodiment of the invention, when the power of the channel where the target frequency spectrum is located is detected to be greater than the preset power, the target frequency spectrum is sent at low power; otherwise it is transmitted at a higher power. The unlicensed spectrum can be better used, the spectrum efficiency is improved, and the throughput is improved.
Optionally, an embodiment of the present invention further provides a method for limiting a channel time during which a channel access device occupies a target spectrum, where the method further includes:
and under the condition that the range of the transmitting power is not higher than the first power, the time for the channel access equipment to occupy the channel where the target frequency spectrum is located is not less than the first duration.
In this embodiment, when the channel where the target spectrum is located is occupied with the transmission power not higher than the first power, such as an unlicensed spectrum channel, the sum of the channel occupation time and the idle time, that is, the time from the channel occupation start time to the next time of detecting whether the channel is idle cannot be smaller than the first duration. Since the channel access device transmits with less power, and therefore frequently listens for channel detections in order to reduce the frequency with which the channel access device intends to transmit with more power, the time from the start of occupying the channel to the next channel detection cannot be too short.
Specifically, the first time length may be different according to different transmission contents, for example, the first time length may be shorter if a reference signal is transmitted; and a control signaling or data channel is sent, the first time length may be longer. The first time period may be different according to different channel access devices, and certainly, the first time period may also be the same according to different channel access devices, and in a specific implementation, the first time period may be limited according to needs, and the embodiment is not limited uniquely.
The embodiment does not limit the method for the channel access device to limit the time for the channel access device to access the target spectrum.
By implementing the embodiment, the channel access equipment can be effectively prevented from frequently carrying out channel detection and monitoring by limiting the time for occupying the channel of the target frequency spectrum by the channel access equipment, and the power consumption of the channel access equipment can be effectively reduced.
Optionally, an embodiment of the present invention further provides a method for limiting a channel time during which a channel access device occupies a target spectrum, where the method further includes:
and under the condition that the range of the transmitting power is not higher than the second power, the time for the channel access equipment to occupy the channel of the target frequency spectrum is not more than the second time length.
Since the transmission is performed with a large power, the channel occupation time cannot be too long to avoid the influence of other devices such as interference. Therefore, the embodiment can effectively prevent the channel access equipment from causing interference to other equipment.
In this embodiment, the second duration may also be different according to different channel access devices, and the second duration may also be different according to different priorities of access mechanisms used for channel access, for example, an access mechanism with a higher priority is used, that is, it is possible to detect that the channel power is lower than the target power within a shorter channel detection time, so as to determine that the channel can be occupied by the transmission power not higher than the second power, and then the second duration is shorter; conversely, when a lower priority access mechanism is used, i.e. the channel power is detected to be lower than the target power only within a longer channel detection time, and it is determined that the channel can be occupied by the transmission power not higher than the second power, the second duration is longer. Of course, the second duration may also be the same according to different channel access devices, and in a specific implementation, the second duration may be limited according to needs, and the embodiment is not limited uniquely.
To specifically explain the method described in fig. 2, please refer to fig. 3, fig. 3 is a specific scene schematic diagram of a channel access method provided in an embodiment of the present invention, where the channel access method is applicable to a channel access device, and if the channel access device needs to use a channel corresponding to an unlicensed spectrum to transmit a signal, the method for the channel access device to access the channel corresponding to the unlicensed spectrum includes:
301. the channel access equipment monitors a channel where a target frequency spectrum is located;
302. acquiring target power, wherein the target power is the power of a channel where the target frequency spectrum is located;
303. detecting whether the target power is larger than a preset power, if so, executing 304 and 305; otherwise, 306 and 307 are executed;
304. determining a range of transmit powers not higher than a first power;
305. limiting the time of accessing the channel of the target frequency spectrum to be not less than a first time length;
306. determining a range of the transmit power to be not higher than the second power;
307. and limiting the time for accessing the channel where the target frequency spectrum is located to be not more than a second time length.
It can be understood that specific implementation manners of the embodiments of the present invention may refer to the implementation manners described in fig. 1 and fig. 2, and are not described herein again.
When the embodiment of the invention is implemented, when the power on the channel is detected to be larger than the preset power, the channel is sent at low power; otherwise it is transmitted at a higher power. Meanwhile, the time length of accessing the channel is limited, so that the unlicensed spectrum can be better used, the spectrum efficiency is improved, and the throughput is improved.
The method of the embodiment of the present invention is explained in detail above, and the following provides the channel access device of the embodiment of the present invention.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a channel access device according to an embodiment of the present invention, where the channel access device may include an access network device or a terminal device, and as shown in fig. 4, the channel access device may specifically include:
an obtaining unit 401, configured to obtain a target power, where the target power is a power of a channel where a target frequency spectrum is monitored;
a determining unit 402, configured to determine a range of a transmission power according to whether the target power is greater than a preset power, where the transmission power is a transmission power of the channel access device on a channel where the target spectrum is located.
By implementing the embodiment of the invention, the range of the transmitting power of the channel access equipment can be determined according to the range of the channel power of the target spectrum, namely, signals can be transmitted on the channel corresponding to the unlicensed spectrum, or resources on the channel corresponding to the unlicensed spectrum are used. Therefore, the problem of low spectrum efficiency caused by the fact that other equipment cannot be accessed due to the fact that the unlicensed spectrum is occupied when the unlicensed spectrum is in a higher frequency band is solved, the spectrum utilization rate can be effectively improved, and the spectrum efficiency is improved.
Specifically, the determining unit 402 is specifically configured to determine that the range of the transmission power is not higher than a first power when the target power is greater than the preset power;
the determining unit 402 is specifically configured to determine that the range of the transmission power is not higher than a second power when the target power is not greater than the preset power, where the first power is smaller than the second power.
By implementing the embodiment of the invention, when the power of the channel where the target frequency spectrum is located is detected to be greater than the preset power, the target frequency spectrum is sent at low power; otherwise it is transmitted at a higher power. The unlicensed spectrum can be better used, the spectrum efficiency is improved, and the throughput is improved.
Specifically, when the range of the transmission power is not higher than the first power, the time for the channel access device to occupy the channel in the target spectrum is not less than the first duration.
By implementing the embodiment of the invention, the channel access equipment can be effectively prevented from frequently carrying out channel detection and monitoring by limiting the time for occupying the channel of the target frequency spectrum by the channel access equipment, and the power consumption of the channel access equipment can be effectively reduced.
Specifically, when the range of the transmission power is not higher than the second power, the time for the channel access device to occupy the channel in the target spectrum is not longer than the second duration.
The embodiment of the invention can effectively prevent the channel access equipment from causing interference to other equipment.
Specifically, the first power is greater than or equal to 0, and both the first power and the second power are less than or equal to the maximum transmission power of the channel access device.
It can be understood that specific implementation manners of the embodiments of the present invention may refer to the implementation manners described in fig. 1, fig. 2, and fig. 3, and are not described in detail here.
It should be noted that the implementation of each unit may also correspond to the corresponding description of the method embodiments shown in fig. 1, fig. 2 and fig. 3.
Referring to fig. 5, fig. 5 is a channel access device according to an embodiment of the present invention, where the channel access device includes a processor 501, a memory 502, and a transceiver 503, and the processor 501, the memory 502, and the transceiver 503 are connected to each other through a bus 504.
The Memory 502 includes, but is not limited to, a Random Access Memory (RAM), a Read-Only Memory (ROM), an Erasable Programmable Read Only Memory (EPROM), or a portable Read Only Memory (CD-ROM), and the Memory 502 is used for related instructions and data. The transceiver 503 is used to receive and transmit data and/or signaling.
The processor 501 may be one or more Central Processing Units (CPUs), and in the case that the processor 501 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.
The processor 501 in the channel access device is configured to read the program code stored in the memory 502, and perform the following operations:
acquiring target power, wherein the target power is the power of a channel where a target frequency spectrum is monitored;
and determining the range of the transmitting power according to whether the target power is greater than the preset power, wherein the transmitting power is the transmitting power of the channel access equipment on the channel where the target frequency spectrum is located.
In one embodiment, the specific implementation manner of the processor 501 determining the range of the transmission power according to whether the target power is greater than the preset power may include:
determining the range of the transmitting power to be not higher than a first power under the condition that the target power is larger than the preset power;
and determining the range of the transmitting power to be not higher than a second power under the condition that the target power is not larger than the preset power, wherein the first power is smaller than the second power.
In one embodiment, the processor 501 is configured to read the program code stored in the memory 502, and further performs the following operations:
and under the condition that the range of the transmitting power is not higher than the first power, the time for the channel access equipment to occupy the channel where the target frequency spectrum is located is not less than the first duration.
In one embodiment, the processor 501 is configured to read the program code stored in the memory 502, and further perform the following operations:
and under the condition that the range of the transmitting power is not higher than the second power, the time for the channel access equipment to occupy the channel of the target frequency spectrum is not more than the second time length.
In one embodiment, the first power is greater than or equal to 0, and both the first power and the second power are less than or equal to a maximum transmission power of the channel access device.
In an embodiment, the channel in which the target spectrum is located is a channel corresponding to an unlicensed spectrum.
It should be noted that, implementation of each operation may also correspond to corresponding description of the method embodiments shown in fig. 1, fig. 2, and fig. 3, and related functions of the channel access device described in the embodiments of the present invention may also be performed, for example, the processor 501 may perform the functions described by the obtaining unit 401 and the determining unit 402 described in fig. 4, which is not detailed herein.
In another embodiment of the present invention, a computer-readable storage medium is provided, which stores a computer program that when executed by a processor implements: acquiring target power, wherein the target power is the power of a channel where a monitored target frequency spectrum is located; and determining the range of the transmitting power according to whether the target power is greater than the preset power, wherein the transmitting power is the transmitting power of the channel access equipment on the channel where the target frequency spectrum is located.
The computer readable storage medium may be an internal storage unit of the channel access device in any of the foregoing embodiments, for example, a hard disk or a memory of the channel access device. The computer readable storage medium may also be an external storage device of the channel access device, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the channel access device. Further, the computer-readable storage medium may include both the internal storage unit and the external storage device. The computer-readable storage medium is used for storing the computer program and other programs and data required by the channel access device. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.
Fig. 6 is a block diagram illustrating a partial structure of a mobile phone related to a terminal device when a channel access device provided by an embodiment of the present invention is the terminal device. Referring to fig. 6, the handset includes: radio Frequency (RF) circuit 610, memory 620, input unit 630, display unit 640, sensor 650, audio circuit 660, wireless fidelity (WiFi) module 670, processor 680, and power supply 690. Those skilled in the art will appreciate that the handset configuration shown in fig. 6 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 6:
the RF circuit 610 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, receives downlink information of a base station and then processes the received downlink information to the processor 680; in addition, the data for designing uplink is transmitted to the base station. It will be appreciated that in general, the RF circuitry 610 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuitry 610 may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Messaging Service (SMS), and the like.
The memory 620 may be used to store software programs and modules, and the processor 680 may execute various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 620. The memory 620 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 620 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The input unit 630 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 630 may include a touch panel 631 and other input devices 632. The touch panel 631, also referred to as a touch screen, can collect touch operations of a user (e.g., operations of the user on or near the touch panel 630 using any suitable object or accessory such as a finger, a stylus, etc.) thereon or nearby, and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 630 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 680, and can receive and execute commands sent by the processor 680. In addition, the touch panel 630 may be implemented by various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 630 may include other input devices 632 in addition to the touch panel 630. In particular, other input devices 632 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 640 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The Display unit 640 may include a Display panel 641, and optionally, the Display panel 641 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch panel 630 may cover the display panel 641, and when the touch panel 630 detects a touch operation on or near the touch panel 630, the touch panel is transmitted to the processor 680 to determine the type of the touch event, and then the processor 680 provides a corresponding visual output on the display panel 641 according to the type of the touch event. Although in fig. 6, the touch panel 630 and the display panel 641 are two independent components to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 630 and the display panel 641 may be integrated to implement the input and output functions of the mobile phone.
The handset may also include at least one sensor 650, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel 641 according to the brightness of ambient light, and a proximity sensor that turns off the display panel 641 and/or the backlight when the mobile phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
WiFi belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 670, and provides wireless broadband Internet access for the user. Although fig. 6 shows the WiFi module 670, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 680 is a control center of the mobile phone, and connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 620 and calling data stored in the memory 620, thereby performing overall monitoring of the mobile phone. Optionally, processor 680 may include one or more processing units; preferably, the processor 680 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 680.
The handset also includes a power supply 690 (e.g., a battery) for powering the various components, which may preferably be logically connected to the processor 680 via a power management system, such that the power management system may be used to manage charging, discharging, and power consumption.
Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.
In a specific implementation, the handset may implement the method implemented when the channel access device described in the foregoing embodiment is used as a terminal device, which is not described in detail herein.
Fig. 7 is a schematic structural diagram of a channel access device as an access network device, such as a base station, according to an embodiment of the present invention. The base station 700 may have a large difference due to different configurations or performances, and may include one or more Central Processing Units (CPUs) 722 (e.g., one or more processors), one or more storage media 730 (e.g., one or more mass storage devices) storing the application 741. Storage medium 730 may be, among other things, transient storage or persistent storage. The program stored in the storage medium 730 may include one or more modules (not shown), each of which may include a series of instruction operations for the base station. Further, the central processor 722 may be configured to communicate with the storage medium 730, and execute a series of instruction operations in the storage medium 730 on the base station 700.
The base station 700 may also include one or more power supplies 726, one or more wired or wireless network interfaces 750, one or more input-output interfaces 758, and so on.
In a specific implementation, the base station may implement the method implemented when the channel access device described in the foregoing embodiment is used as an access network device, which is not described in detail herein.
One of ordinary skill in the art will appreciate that all or part of the processes in the methods of the above embodiments may be implemented by hardware related to instructions of a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the above method embodiments. And the aforementioned storage medium includes: various media capable of storing program codes, such as ROM or RAM, magnetic or optical disks, etc.
Claims (8)
1. A method for accessing a channel, comprising:
acquiring target power, wherein the target power is the power of a channel where a monitored target frequency spectrum is located;
determining the range of transmitting power according to whether the target power is greater than preset power, wherein the transmitting power is the transmitting power of the channel access equipment on the channel where the target frequency spectrum is located;
determining the range of the transmitting power according to whether the target power is greater than a preset power comprises:
determining the range of the transmitting power to be not higher than a first power under the condition that the target power is larger than the preset power;
and determining the range of the transmitting power to be not higher than a second power under the condition that the target power is not larger than the preset power, wherein the first power is smaller than the second power.
2. The method of claim 1, further comprising:
when the range of the transmitting power is not higher than the first power, the time that the channel access equipment occupies the channel of the target spectrum is not less than a first duration;
and under the condition that the range of the transmitting power is not higher than the second power, the time for the channel access equipment to occupy the channel of the target frequency spectrum is not more than a second duration.
3. The method of claim 1 or 2, wherein the first power is greater than or equal to 0, and wherein the first power and the second power are both less than or equal to a maximum transmit power of the channel access device.
4. The method according to claim 1, wherein the channel in which the target spectrum is located is a channel corresponding to an unlicensed spectrum;
the channel access device includes: access network equipment or terminal equipment.
5. A channel access device, comprising:
an obtaining unit, configured to obtain a target power, where the target power is a power of a channel where a monitored target frequency spectrum is located;
a determining unit, configured to determine a range of transmission power according to whether the target power is greater than a preset power, where the transmission power is transmission power of the channel access device on a channel where the target spectrum is located;
the determining unit is specifically configured to determine that the range of the transmit power is not higher than a first power when the target power is greater than the preset power;
the determining unit is specifically configured to determine that the range of the transmit power is not higher than a second power when the target power is not greater than the preset power, where the first power is smaller than the second power.
6. The apparatus of claim 5,
when the range of the transmitting power is not higher than the first power, the time that the channel access equipment occupies the channel of the target spectrum is not less than a first duration;
and under the condition that the range of the transmitting power is not higher than the second power, the time for the channel access equipment to occupy the channel of the target frequency spectrum is not more than a second duration.
7. The device of claim 5 or 6, wherein the first power is greater than or equal to 0, and wherein the first power and the second power are both less than or equal to a maximum transmit power of the channel access device.
8. The apparatus according to claim 5, wherein the channel in which the target spectrum is located is a channel corresponding to an unlicensed spectrum;
the channel access device includes: access network equipment or terminal equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766866.7A CN107659996B (en) | 2017-08-30 | 2017-08-30 | Channel access method and equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710766866.7A CN107659996B (en) | 2017-08-30 | 2017-08-30 | Channel access method and equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107659996A CN107659996A (en) | 2018-02-02 |
| CN107659996B true CN107659996B (en) | 2021-05-18 |
Family
ID=61128029
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710766866.7A Active CN107659996B (en) | 2017-08-30 | 2017-08-30 | Channel access method and equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107659996B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111106885A (en) * | 2018-11-12 | 2020-05-05 | 维沃移动通信有限公司 | Measurement method, indication method, device, terminal, network equipment and medium |
| CN111148151B (en) * | 2019-12-27 | 2023-08-15 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for adjusting transmitting power, storage medium and terminal equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714850A (en) * | 2010-01-21 | 2012-10-03 | 高通股份有限公司 | Method and apparatus for power scaling for multi-carrier wireless terminals |
| CN105208663A (en) * | 2014-06-10 | 2015-12-30 | 上海朗帛通信技术有限公司 | Scheduling method and apparatus for unlicensed spectrum communication |
| CN105916171A (en) * | 2016-03-30 | 2016-08-31 | 深圳市金立通信设备有限公司 | Access control method, access device and terminal device |
| EP3146777A1 (en) * | 2014-05-22 | 2017-03-29 | Kyocera Corporation | Unlicensed frequency band with licensed frequency band timing |
| CN107005853A (en) * | 2015-01-29 | 2017-08-01 | 华为技术有限公司 | A kind of method for reporting reference information, device and terminal |
-
2017
- 2017-08-30 CN CN201710766866.7A patent/CN107659996B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714850A (en) * | 2010-01-21 | 2012-10-03 | 高通股份有限公司 | Method and apparatus for power scaling for multi-carrier wireless terminals |
| EP3146777A1 (en) * | 2014-05-22 | 2017-03-29 | Kyocera Corporation | Unlicensed frequency band with licensed frequency band timing |
| CN105208663A (en) * | 2014-06-10 | 2015-12-30 | 上海朗帛通信技术有限公司 | Scheduling method and apparatus for unlicensed spectrum communication |
| CN107005853A (en) * | 2015-01-29 | 2017-08-01 | 华为技术有限公司 | A kind of method for reporting reference information, device and terminal |
| CN105916171A (en) * | 2016-03-30 | 2016-08-31 | 深圳市金立通信设备有限公司 | Access control method, access device and terminal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107659996A (en) | 2018-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107396386B (en) | Channel detection method and channel detection equipment | |
| US10909981B2 (en) | Mobile terminal, method of controlling same, and computer-readable storage medium | |
| CN111107648B (en) | Channel position indication method and related product | |
| CN110351850B (en) | Channel transmission method, terminal and network equipment | |
| CN107231159B (en) | Radio frequency interference processing method, device, storage medium and terminal | |
| CN107612643B (en) | Channel detection method and channel detection equipment | |
| US20230130963A1 (en) | Method for processing relax measurement parameter update, and terminal device | |
| RU2736110C1 (en) | Method and device for transmitting service signals | |
| CN107113747B (en) | Communication method, device, terminal and base station | |
| KR102525479B1 (en) | Resource request method and user device | |
| WO2018145477A1 (en) | Network access method and terminal | |
| CN111050422A (en) | Discontinuous reception control method and terminal | |
| CN107659996B (en) | Channel access method and equipment | |
| RU2738869C1 (en) | Method of determining timing position for synchronization signal unit and corresponding product | |
| CN106851784B (en) | network scanning method and terminal equipment | |
| CN110192407B (en) | Data transmission method and equipment | |
| CN113038513A (en) | Method, terminal device and storage medium for independent networking weak coverage | |
| WO2022067544A1 (en) | Wireless communication method, terminal device, and network device | |
| CN106550461B (en) | Resource using method and terminal | |
| CN111132187B (en) | Determination method, terminal equipment and network equipment | |
| CN110710315B (en) | Method for reporting capability of terminal and related product | |
| CN112261634A (en) | Bluetooth transmission control method, device, terminal equipment and storage medium | |
| CN109151154B (en) | Power consumption control method and mobile terminal | |
| CN105517113B (en) | Access control method and terminal equipment | |
| CN110913022A (en) | Method, device and system for downloading network file of mobile terminal and storage medium |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |