CN107528682B - Method and device for sending reference signal - Google Patents
Method and device for sending reference signal Download PDFInfo
- Publication number
- CN107528682B CN107528682B CN201710851110.2A CN201710851110A CN107528682B CN 107528682 B CN107528682 B CN 107528682B CN 201710851110 A CN201710851110 A CN 201710851110A CN 107528682 B CN107528682 B CN 107528682B
- Authority
- CN
- China
- Prior art keywords
- time domain
- channel
- time
- reference signal
- synchronization signal
- 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
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The embodiment of the application discloses a method and a device for sending a reference signal, which are used for sending the reference signal in NR. The method comprises the following steps: determining distribution information of one or more synchronization signal blocks contained in a reference signal on a time domain symbol; wherein each of the synchronization signal blocks is distributed over a plurality of consecutive time domain symbols; detecting whether a channel for transmitting the reference signal is idle; and if so, sending the reference signal on the channel according to the distribution information. The technical scheme perfects the sending mechanism of the reference signal, and the sending mechanism of the reference signal can be suitable for sending the reference signal in NR.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting a reference signal.
Background
Under the conventional LTE (Long Term Evolution) assisted Condition, the unlicensed spectrum uses the LTE mechanism, and its DRS (Discovery Signal) includes PSS/SSS (primary/secondary synchronization Signal), CRS (Cell Reference Signal), and optional CSI-RS (Channel Condition Information-Reference Signal), which occupy 12 continuous symbols altogether. Before sending the DRS, the base station needs to detect whether a 25us channel is idle, and if the channel is idle and the remaining time in the subframe is greater than or equal to 12 complete symbols, the DRS is sent. However, in NR (New Radio ), in order to reduce CRS of always on, CRS is removed, and currently discussed SS block includes PSS, SSs, and PBCH (including DMRS on PBCH symbol) of NR. The current DRS of LTE cannot be directly used for DRS in NR.
Based on the above problems, the DRS in NR needs to be redesigned. DRSs in currently designed NRs contain one or more SS blocks, and multiple SS blocks are not necessarily consecutive. That is, there may be continuity between the SS blocks or there may be a certain interval. For example, when the carrier frequency is 15KHz, if there are 2 SS blocks in 14 time domain symbols of each subframe, it may be designed that the first SS block occupies a time domain symbol numbered 2 to 5, and the second SS block occupies a time domain symbol numbered 8 to 11. Obviously, there is a discontinuity between SS blocks. Therefore, how to send DRS in NR becomes a problem to be solved urgently at present.
Disclosure of Invention
An object of the embodiments of the present application is to provide a method and an apparatus for transmitting a reference signal, so as to implement transmission of a reference signal in NR.
In order to solve the above technical problem, the embodiment of the present application is implemented as follows:
in one aspect, an embodiment of the present application provides a method for sending a reference signal, including:
determining distribution information of one or more synchronization signal blocks contained in a reference signal on a time domain symbol; wherein each of the synchronization signal blocks is distributed over a plurality of consecutive time domain symbols;
detecting whether a channel for transmitting the reference signal is idle;
and if so, sending the reference signal on the channel according to the distribution information.
Optionally, the sending the reference signal according to the distribution information includes:
determining a detection time at which the channel is detected to be idle;
and comparing the detection time with the time corresponding to the time domain symbol corresponding to each synchronous signal block, and sending the reference signal according to the comparison result.
Optionally, the sending the reference signal according to the comparison result includes:
if the detection time is before the time corresponding to the time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block in each synchronization signal block by using the channel;
and if the detection time is between the time corresponding to the first time domain symbol and the time corresponding to the last time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block after the detection time by using the channel.
Optionally, the sending the reference signal according to the comparison result further includes:
and if the vacant time exists between the detection time and the time corresponding to the time domain symbol corresponding to the synchronous signal block after the detection time, transmitting a channel occupation signal on the channel by using the vacant time.
Optionally, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are continuous;
correspondingly, the sending the reference signal according to the comparison result includes:
and if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two continuous synchronous signal blocks, transmitting the at least two continuous synchronous signal blocks by using the channel.
Optionally, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are discontinuous;
correspondingly, the sending the reference signal according to the comparison result includes:
if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two discontinuous synchronous signal blocks, sending a specified filling signal by using the time domain symbols between the at least two discontinuous synchronous signal blocks, and sending the at least two discontinuous synchronous signal blocks; or, before transmitting each of the at least two discontinuous synchronization signal blocks, detecting whether the channel is idle by using a time domain symbol between the at least two discontinuous synchronization signal blocks, and if so, transmitting a synchronization signal block to be transmitted after the detection time on the channel.
Optionally, the distribution information includes: the synchronization signal blocks contained in two adjacent different reference signals are not continuous;
correspondingly, the transmitting the reference signal according to the distribution information includes:
before each reference signal is sent, whether the channel is idle is detected by using the time domain symbols spaced between the discontinuous reference signals, and if so, the reference signal to be sent after the detection time is sent on the channel.
Optionally, the distribution information includes: the synchronization signal blocks contained in two adjacent different reference signals are continuous, and at least one specific reference signal in the continuous reference signals contains at least two synchronization signal blocks;
correspondingly, the transmitting the reference signal according to the distribution information includes:
and detecting whether the channel is idle by using a time domain symbol in which one of the synchronization signal blocks included in the specific reference signal is located, and if so, transmitting the synchronization signal block to be transmitted after the detection time on the channel.
Optionally, the different reference signals indicate different beam directions.
On the other hand, an embodiment of the present application provides an apparatus for sending a reference signal, including:
a determining module, configured to determine distribution information of one or more synchronization signal blocks included in a reference signal on a time domain symbol; wherein each of the synchronization signal blocks is distributed over a plurality of consecutive time domain symbols;
a detection module, configured to detect whether a channel used for transmitting the reference signal is idle;
and a sending module, configured to send the reference signal according to the distribution information on a channel used for sending the reference signal if the channel is idle.
Optionally, the sending module includes:
a determining unit configured to determine a detection time at which the channel is detected to be idle;
and the first sending unit is used for comparing the detection time with the time corresponding to the time domain symbol corresponding to each synchronous signal block and sending the reference signal according to the comparison result.
Optionally, the first sending unit is further configured to:
if the detection time is before the time corresponding to the time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block in each synchronization signal block by using the channel;
and if the detection time is between the time corresponding to the first time domain symbol and the time corresponding to the last time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block after the detection time by using the channel.
Optionally, the first sending unit is further configured to:
and if the vacant time exists between the detection time and the time corresponding to the time domain symbol corresponding to the synchronous signal block after the detection time, transmitting a channel occupation signal on the channel by using the vacant time.
Optionally, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are continuous;
accordingly, the first sending unit is further configured to:
and if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two continuous synchronous signal blocks, transmitting the at least two continuous synchronous signal blocks by using the channel.
Optionally, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are discontinuous;
accordingly, the first sending unit is further configured to:
if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two discontinuous synchronous signal blocks, sending a specified filling signal by using the time domain symbols between the at least two discontinuous synchronous signal blocks, and sending the at least two discontinuous synchronous signal blocks; or, before transmitting each of the at least two discontinuous synchronization signal blocks, detecting whether the channel is idle by using a time domain symbol between the at least two discontinuous synchronization signal blocks, and if so, transmitting a synchronization signal block to be transmitted after the detection time on the channel.
Optionally, the distribution information includes: the synchronization signal blocks contained in two adjacent different reference signals are not continuous;
accordingly, the sending module comprises:
a second sending unit, configured to, before sending each reference signal, detect whether the channel is idle by using a time domain symbol spaced between the discontinuous reference signals, and if yes, send, on the channel, a reference signal to be sent after the detection time.
Optionally, the distribution information includes: the synchronization signal blocks contained in two adjacent different reference signals are continuous, and at least one specific reference signal in the continuous reference signals contains at least two synchronization signal blocks;
accordingly, the sending module comprises:
a third sending unit, configured to detect whether the channel is idle by using a time domain symbol in which one of the synchronization signal blocks included in the specific reference signal is located, and if so, send a synchronization signal block to be sent after the detection time on the channel.
Optionally, the different reference signals indicate different beam directions.
By adopting the technical scheme of the embodiment of the invention, the distribution information of one or more synchronous signal blocks contained in the reference signal on the time domain symbol can be determined, and the reference signal is sent according to the distribution information of the synchronous signal blocks on the time domain symbol when the channel is idle. Therefore, the technical scheme can transmit the reference signal according to the distribution information of the synchronization signal blocks in the reference signal on the time domain symbol, and the distribution information of the synchronization signal blocks can be continuous or discontinuous, so that the technical scheme perfects the transmission mechanism of the reference signal, and the transmission mechanism of the reference signal can be suitable for the transmission of the reference signal in NR.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic flow chart of a method for transmitting a reference signal according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a reference signal transmission apparatus according to an embodiment of the present invention.
Detailed Description
The embodiment of the application provides a method and a device for sending a reference signal, which are used for sending the reference signal in NR.
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, 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 application.
The reference signal transmission method provided by the embodiment of the invention can be suitable for the transmission of the reference signal of the traditional LTE and the reference signal in NR.
Before describing in detail the method for transmitting a reference signal according to an embodiment of the present invention, first, a distribution of one or more synchronization signal blocks included in a reference signal in NR is introduced.
When the carrier frequency is below 3GHz, the maximum number of the synchronous signal blocks is 4; when the carrier frequency is between 3GHz and 6GHz, the maximum number of the synchronous signal blocks is 8; when the carrier frequency is between 6GHz and 52.6GHz, the maximum number of synchronous signal blocks is 64. Based on this, the distribution information of the synchronization signal blocks in the time domain symbols for different subcarrier intervals may include the following:
(1) when the subcarrier spacing is 15KHz, there are 14 time domain symbols within 1ms, there are 2 sync signal blocks in these 14 time domain symbols, and these 2 sync signal blocks are not continuous. For example, the first sync signal block occupies the time domain symbols numbered 2-5; the second synchronization signal block occupies the time domain symbols numbered 8-11.
(2) When the subcarrier spacing is 30KHz, there are 28 time domain symbols, i.e., two 14 time domain symbols, within 1 ms. The distribution of 2 synchronization signal blocks in the same 14 time domain symbols has two situations: one is that there is no continuity between every two sync signal blocks; another case is that 2 sync signal blocks in the same 14 time domain symbols are consecutive, but the sync signal blocks between every two 14 time domain symbols are not consecutive.
(3) When the subcarrier spacing is 120KHz, there are 112 time-domain symbols, i.e., eight 14 time-domain symbols, within 1 ms. The distribution of the synchronization signal blocks in the same 14 time domain symbols is as follows: two consecutive synchronization signal blocks are included, and the synchronization signal block between every two 14 time domain symbols is not continuous.
(4) When the subcarrier spacing is 240KHz, there are 224 time domain symbols, i.e., eight 28 time domain symbols, within 1 ms. The distribution of the synchronization signal blocks in the same 28 time domain symbols is: four consecutive sync signal blocks are included and the sync signal blocks between every two 28 time domain symbols are not consecutive.
As can be seen from the above distribution information, when the subcarrier spacing is 30KHz, 2 synchronization signal blocks in the same 14 time domain symbols may be continuous or discontinuous; when the subcarrier interval is 120KHz, 2 synchronous signal blocks in the same 14 time domain symbols are continuous; when the subcarrier spacing is 240KHz, the 4 sync signal blocks in the same 28 time domain symbols must be consecutive. Of course, the distribution information of the above several synchronization signal blocks is only exemplary, and the practical application is not limited thereto.
Based on the above information, the reference signal may include one or more consecutive synchronization signal blocks, or may include a plurality of consecutive synchronization signal blocks.
Fig. 1 is a schematic flow chart of a method for transmitting a reference signal according to an embodiment of the present invention, as shown in fig. 1, the method including:
step S101, determining distribution information of one or more synchronous signal blocks contained in a reference signal on a time domain symbol; wherein each synchronization signal block is distributed over a plurality of consecutive time domain symbols.
Step S102, whether a channel for transmitting the reference signal is idle is detected.
Step S103, if the channel is idle, the reference signal is sent on the channel according to the distribution information.
By adopting the technical scheme of the embodiment of the invention, the distribution information of one or more synchronous signal blocks contained in the reference signal on the time domain symbol can be determined, and the reference signal is sent according to the distribution information of the synchronous signal blocks on the time domain symbol when the channel is idle. Therefore, the technical scheme can transmit the reference signal according to the distribution information of the synchronization signal blocks in the reference signal on the time domain symbol, and the distribution information of the synchronization signal blocks can be continuous or discontinuous, so that the technical scheme perfects the transmission mechanism of the reference signal, and the transmission mechanism of the reference signal can be suitable for the transmission of the reference signal in NR.
In one embodiment, when the reference signal is transmitted according to the distribution information of the synchronization signal blocks on the time domain symbol, the detection time for detecting the idle channel can be determined, and the detection time and the time corresponding to the time domain symbol corresponding to each synchronization signal block are compared, so as to transmit the reference signal according to the comparison result. The way of sending the reference signal is different according to the comparison result.
How to transmit the reference signal according to the comparison result is described in detail below.
In one embodiment, if the detection time is before the time corresponding to the time domain symbol corresponding to each synchronization signal block, at least one synchronization signal block in each synchronization signal block is transmitted by using the detected idle channel. And if the detection time is between the time corresponding to the first time domain symbol and the last time domain symbol corresponding to each synchronous signal block, transmitting at least one synchronous signal block after the detection time by using the detected idle channel. In this embodiment, the first time domain symbol corresponding to each synchronization signal block refers to the time domain symbol with the most advanced number among the time domain symbols corresponding to all synchronization signal blocks included in the reference signal, and the last time domain symbol corresponding to each synchronization signal block refers to the time domain symbol with the most advanced number among the time domain symbols corresponding to all synchronization signal blocks included in the reference signal. The time corresponding to the first time domain symbol and the last time domain symbol corresponding to each synchronization signal block may be the time corresponding to a certain time domain symbol corresponding to one of the synchronization signal blocks, or the time corresponding to a time domain symbol between time domain symbols corresponding to two adjacent synchronization signal blocks.
For example, assume that the same reference signal contains 2 synchronization signal blocks, and the first synchronization signal block is distributed in the time domain symbols numbered 2-5, and the second synchronization signal block is distributed in the time domain symbols numbered 8-11. As can be seen, in the reference signal, the first time domain symbol is the time domain symbol numbered 2, and the last time domain symbol is the time domain symbol numbered 11. If the detection time for detecting the idle channel is before the time domain symbol numbered 2-5 (e.g., the time domain symbol numbered 1), any one or more of the 2 sync signal blocks can be transmitted by using the idle channel. If the detection time is between the time domain symbol numbered 2-5 and the time domain symbol numbered 8-11 (e.g., the time domain symbol numbered 7), the idle channel may be used to transmit the synchronization signal block corresponding to the time domain symbol after the time domain symbol numbered 7, i.e., the second synchronization signal block. If the detection time is within the time domain symbols numbered 2-5 (e.g., the time domain symbol numbered 4), the idle channel may be used to transmit the synchronization signal block corresponding to the time domain symbol after the time domain symbol numbered 7, i.e., the second synchronization signal block.
In one embodiment, if a vacant time exists between the detection time when the channel is detected to be vacant and the time corresponding to the time domain symbol corresponding to the synchronous signal block after the detection time, the vacant time is utilized to transmit the channel occupation signal on the channel.
Following the above example, assume that the same reference signal contains 2 synchronization signal blocks, and the first synchronization signal block is distributed in the time domain symbols numbered 2-5 among the 14 time domain symbols, and the second synchronization signal block is distributed in the time domain symbols numbered 8-11 among the 14 time domain symbols. If the time domain symbol with the number of 6 is detected to have the idle detection time of the channel on the time domain symbol, because the idle time exists between the time corresponding to the time domain symbol with the number of 6 and the time corresponding to the time domain symbol with the number of 8-11 where the second synchronization signal block is located, that is, the time corresponding to the time domain symbol with the number of 7, the channel occupying signal can be sent at the time corresponding to the time domain symbol with the number of 7.
As mentioned above, the sync signal blocks in the reference signal may or may not be continuous with each other. The method of transmitting the reference signal is different for different distribution information of the synchronization signal block. The following description will be made with reference to specific examples.
In one embodiment, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are continuous. Based on the distribution information, if the detection time for detecting the idle channel is before the time corresponding to the time domain symbol corresponding to the at least two continuous synchronous signal blocks, the at least two continuous synchronous signal blocks are transmitted by using the detected idle channel. Specifically, if the detection time for detecting the idle channel is before the time corresponding to the time domain symbol corresponding to the at least two consecutive synchronization signal blocks, the detected idle channel may be used to transmit all consecutive synchronization signal blocks, or the detected idle channel may be used to transmit part of the at least two consecutive synchronization signal blocks. That is, if a plurality of synchronization signal blocks included in the reference signal are consecutive, only one channel detection is required.
In this embodiment, for a plurality of consecutive synchronization signal blocks, only one channel detection is needed, that is, the plurality of synchronization signal blocks are transmitted according to the same channel condition (e.g., the same beam direction), so as to improve the signal coverage of the current cell.
For example, assume that the reference signal contains 2 consecutive synchronization signal blocks, and the first synchronization signal block is distributed over the time domain symbols numbered 4-7 among the 14 time domain symbols, and the second synchronization signal block is distributed over the time domain symbols numbered 8-11 among the 14 time domain symbols. If the detection time for detecting the idle channel is before the time corresponding to the time domain symbol corresponding to the 2 synchronization signal blocks, for example, the detection time is before the time domain symbol numbered as 3, the detected idle channel is used to transmit the consecutive 2 synchronization signal blocks.
In one embodiment, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are discontinuous. Based on the distribution information, if the detection time for detecting that the channel is idle is before the time corresponding to the time domain symbol corresponding to at least two discontinuous synchronization signal blocks, the reference signal can be transmitted in any one of the following manners:
the first mode is to transmit a specified padding signal by using a time domain symbol between at least two discontinuous synchronization signal blocks, and transmit at least two discontinuous synchronization signal blocks.
Wherein the designated fill signal may comprise a channel occupancy signal.
For example, assume that the same reference signal contains 2 synchronization signal blocks, and the first synchronization signal block is distributed in the time domain symbols numbered 2-5 among the 14 time domain symbols, and the second synchronization signal block is distributed in the time domain symbols numbered 8-11 among the 14 time domain symbols. If the detection time that the channel is idle is detected to be located in the time domain symbol with the number of 1, sending a first synchronous signal block on the time domain symbol with the number of 2-5, then sending a specified filling signal by using the time corresponding to the time domain symbols (namely, the time domain symbols with the number of 6 and the time domain symbols with the number of 7) spaced between the two synchronous signal blocks, and then sending a second synchronous signal block on the time domain symbol with the number of 8-11.
In the first mode, the designated padding signal is transmitted in the time domain symbols between the discontinuous synchronization signal blocks, so that when the discontinuous synchronization signal blocks are transmitted, only one channel detection is needed, that is, the plurality of discontinuous synchronization signal blocks are transmitted according to the same channel condition (e.g., the same beam direction), thereby improving the signal coverage of the current cell.
And secondly, before each discontinuous at least two synchronous signal blocks are sent, whether a channel is idle is detected by using a time domain symbol between the discontinuous at least two synchronous signal blocks, and if so, the synchronous signal block to be sent after the detection time for detecting the idle channel is sent on the detected idle channel.
In the second method, since there is an interval between every two synchronization signal blocks, the channel detection can be performed using the time of the interval. Following the above example, assume that the same reference signal contains 2 synchronization signal blocks, and the first synchronization signal block is distributed in the time domain symbols numbered 2-5 among the 14 time domain symbols, and the second synchronization signal block is distributed in the time domain symbols numbered 8-11 among the 14 time domain symbols. If the detection time of the idle channel is detected to be in the time domain symbol with the number of 1, sending a first synchronous signal block on the time domain symbol with the number of 2-5, and before sending a second synchronous signal block, detecting whether the channel is idle again by using the time domain symbol spaced between the first synchronous signal block and the second synchronous signal block, namely detecting whether the channel is idle again on the time domain symbol with the number of 6 and the number of 7, and if the channel is idle, sending the second synchronous signal block on the time domain symbol with the number of 8-11.
In one embodiment, the distribution information includes: the synchronization signal blocks contained in two adjacent different reference signals are not continuous. Wherein different reference signals indicate different beam directions. Based on the distribution information, before each reference signal is sent, whether a channel is idle is detected by using time domain symbols spaced between discontinuous reference signals, and if so, the reference signal to be sent after the detection time for detecting the idle channel is sent on the idle channel.
For example, assume that 1 of 14 time domain symbols includes 2 synchronization signal blocks, and the first synchronization signal block is distributed in the time domain symbols numbered 2-5 among the 14 time domain symbols, and the second synchronization signal block is distributed in the time domain symbols numbered 8-11 among the 14 time domain symbols. In two adjacent different reference signals, the reference signal A comprises the first synchronous signal block; the reference signal B contains the second synchronization signal block. It can be seen that the reference signal a and the reference signal B contain a discontinuous synchronization signal block. Before sending the reference signal A, whether a channel is idle or not needs to be detected, if the channel is idle, the idle channel is utilized to send the reference signal A on a time domain symbol with the number of 2-5; before sending the reference signal B, it is necessary to detect again whether the channel is idle by using the time domain symbols spaced between the reference signal a and the reference signal B (i.e. the time domain symbols spaced between the time domain symbol numbered 5 and the time domain symbol numbered 8: the time domain symbols numbered 6 and 7), and if idle, send the reference signal B on the time domain symbols numbered 8-11 by using the idle channel.
In one embodiment, the distribution information includes: the synchronization signal blocks contained in two adjacent different reference signals are continuous, and at least one specific reference signal in the two continuous reference signals contains at least two synchronization signal blocks. Wherein different reference signals indicate different beam directions. Based on the distribution information, whether the channel is idle is detected by using the time domain symbol where one of the synchronization signal blocks contained in the specific reference signal is located, and if so, the synchronization signal block to be transmitted after the detection time for detecting the idle channel is transmitted on the detected idle channel.
For example, when the subcarrier spacing is 240KHz, 4 synchronization signal blocks in each 28 time domain symbols are consecutive and are respectively located on the time domain symbols numbered 8-11,12-15,16-19,20-23 in the 28 time domain symbols. Of two adjacent different reference signals, the reference signal X contains the first 2 sync signal blocks of 4 sync signal blocks, i.e. contains sync signal block 1 located on the time domain symbols numbered 8-11 and sync signal block 2 located on the time domain symbols numbered 12-15. The reference signal Y contains the synchronization signal blocks 3 consecutive to the synchronization signal blocks 2 and located on the time domain symbols numbered 16-19. It can be seen that the reference signal X and the reference signal Y are continuous between the sync signal blocks. Since the reference signal X and the reference signal Y are different reference signals, it is necessary to detect whether the channel is idle when the reference signal X and the reference signal Y are both transmitted. However, since the sync blocks included in the reference signal X and the reference signal Y are consecutive, it is necessary to detect whether the channel is idle by using the time domain symbol in which a certain sync block is located. That is, after the first synchronization signal block in the reference signal X is transmitted, the time domain symbol where the second synchronization signal block is located is used to detect whether the channel is idle, and if the channel is idle, the idle channel is used to transmit the reference signal Y on the time domain symbol numbered 16-19, that is, the synchronization signal block 3 is transmitted; if not, the reference signal Y cannot be transmitted. In addition, if the channel idle is not detected before the first synchronization signal block of the reference signal X, but detected on the time domain symbol corresponding to the first synchronization signal block (i.e. the time domain symbols numbered 8-11 corresponding to the synchronization signal block 1), and if the channel idle is detected on the time domain symbol numbered 9, only the second synchronization signal block included in the reference signal X can be transmitted in order to transmit the reference signal X. Thus, there is no spare time domain symbol before the reference signal Y for detecting whether the channel where the reference signal Y is located is idle, so the reference signal Y cannot be transmitted. Then to solve this problem it is possible to let the reference signal Y also contain two synchronization signal blocks, namely a synchronization signal block 3 on the time domain symbols numbered 16-19 and a synchronization signal block 4 on the time domain symbols numbered 20-23. In this way, even if the reference signal X is transmitted only by the synchronization signal block 2, it is possible to detect whether the channel where the reference signal Y is located is idle on the time domain symbol corresponding to the synchronization signal block 3, and if the channel is idle, the synchronization signal block 4 is transmitted to transmit the reference signal Y.
For another example, if the reference signal X only includes 1 synchronization signal block, i.e. the synchronization signal block 1 located on the time domain symbol with the number of 8-11. The reference signal Y comprises 2 sync signal blocks, namely sync signal block 2 on the time domain symbols numbered 12-15 and sync signal block 3 on the time domain symbols numbered 16-19. It can be seen that the reference signal X and the reference signal Y are continuous between the sync signal blocks. Then, after the reference signal X is sent, it may be detected whether the channel is idle by using the time domain symbol where the first synchronization signal block (i.e. synchronization signal block 2) in the reference signal Y is located, and if the channel is idle, the second synchronization signal block (i.e. synchronization signal block 3) in the reference signal Y is sent on the time domain symbol numbered 16-19 by using the idle channel; if not, the reference signal Y cannot be transmitted.
In summary, particular embodiments of the present subject matter have been described. Other embodiments are within the scope of the following claims. In some cases, the actions recited in the claims can be performed in a different order and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may be advantageous.
Based on the same idea, the foregoing method for transmitting a reference signal provided in the embodiments of the present application further provides a device for transmitting a reference signal.
Fig. 2 is a schematic block diagram of a reference signal transmission apparatus according to an embodiment of the present invention, as shown in fig. 2, the apparatus including:
a determining module 210, configured to determine distribution information of one or more synchronization signal blocks included in a reference signal on a time domain symbol; wherein each synchronization signal block is distributed over a plurality of consecutive time domain symbols;
a detecting module 220, configured to detect whether a channel for transmitting a reference signal is idle;
a sending module 230, configured to send the reference signal according to the distribution information on the channel if the channel for sending the reference signal is idle.
Optionally, the sending module 230 includes:
a determining unit for determining a detection time at which the channel is detected to be idle;
and the first sending unit is used for comparing the detection time with the time corresponding to the time domain symbol corresponding to each synchronous signal block and sending the reference signal according to the comparison result.
Optionally, the first sending unit is further configured to:
if the detection time is before the time corresponding to the time domain symbol corresponding to each synchronous signal block, at least one synchronous signal block in each synchronous signal block is sent by using a channel;
and if the detection time is between the time corresponding to the first time domain symbol and the last time domain symbol corresponding to each synchronous signal block, transmitting at least one synchronous signal block after the detection time by using a channel.
Optionally, the first sending unit is further configured to:
and if the vacant time exists between the detection time and the time corresponding to the time domain symbol corresponding to the synchronous signal block after the detection time, transmitting the channel occupation signal on the channel by utilizing the vacant time.
Optionally, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are continuous;
accordingly, the first sending unit is further configured to:
and if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two continuous synchronous signal blocks, transmitting the at least two continuous synchronous signal blocks by using a channel.
Optionally, the distribution information includes: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are discontinuous;
accordingly, the first sending unit is further configured to:
if the detection time is before the time corresponding to the time domain symbol corresponding to the at least two discontinuous synchronous signal blocks, sending a specified filling signal by using the time domain symbol between the at least two discontinuous synchronous signal blocks, and sending the at least two discontinuous synchronous signal blocks; or before each discontinuous at least two synchronous signal blocks are sent, whether a channel is idle is detected by using a time domain symbol between the discontinuous at least two synchronous signal blocks, and if so, the synchronous signal block to be sent after the detection time is sent on the channel.
Optionally, the distribution information includes: the synchronization signal blocks contained in two adjacent different reference signals are not continuous;
accordingly, the transmitting module 230 includes:
a second sending unit, configured to detect whether a channel is idle by using time domain symbols spaced between discontinuous reference signals before sending each reference signal, and if so, send a reference signal to be sent after the detection time on the channel.
Optionally, the distribution information includes: at least one specific reference signal containing at least two synchronous signal blocks exists between the continuous and continuous reference signals contained in two adjacent different reference signals;
accordingly, the transmitting module 230 includes:
a third sending unit, configured to detect whether a channel is idle by using a time domain symbol in which one of the synchronization signal blocks included in the specific reference signal is located, and if so, send, on the channel, a synchronization signal block to be sent after the detection time.
Optionally, different reference signals indicate different beam directions.
By adopting the device of the embodiment of the invention, the distribution information of one or more synchronous signal blocks contained in the reference signal on the time domain symbol can be determined, and the reference signal is sent according to the distribution information of the synchronous signal blocks on the time domain symbol when the channel is idle. Therefore, the technical scheme can transmit the reference signal according to the distribution information of the synchronization signal blocks in the reference signal on the time domain symbol, and the distribution information of the synchronization signal blocks can be continuous or discontinuous, so that the technical scheme perfects the transmission mechanism of the reference signal, and the transmission mechanism of the reference signal can be suitable for the transmission of the reference signal in NR.
It should be understood by those skilled in the art that the apparatus for transmitting a reference signal in fig. 2 can be used to implement the method for transmitting a reference signal described above, and the detailed description thereof should be similar to that of the method described above, and is not repeated herein to avoid complexity.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
For convenience of description, the above devices are described as being divided into various units by function, and are described separately. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.
The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The application may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The application may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (16)
1. A method for transmitting a reference signal, comprising:
determining distribution information of one or more synchronization signal blocks contained in a reference signal on a time domain symbol; wherein each of the synchronization signal blocks is distributed over a plurality of consecutive time domain symbols;
detecting whether a channel for transmitting the reference signal is idle;
if yes, the reference signal is sent on the channel according to the distribution information;
wherein the transmitting the reference signal according to the distribution information includes:
determining a detection time at which the channel is detected to be idle;
and comparing the detection time with the time corresponding to the time domain symbol corresponding to each synchronous signal block, and sending the reference signal according to the comparison result.
2. The method of claim 1, wherein sending the reference signal according to the comparison result comprises:
if the detection time is before the time corresponding to the time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block in each synchronization signal block by using the channel;
and if the detection time is between the time corresponding to the first time domain symbol and the time corresponding to the last time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block after the detection time by using the channel.
3. The method of claim 2, wherein the sending the reference signal according to the comparison result further comprises:
and if the vacant time exists between the detection time and the time corresponding to the time domain symbol corresponding to the synchronous signal block after the detection time, transmitting a channel occupation signal on the channel by using the vacant time.
4. The method of claim 1, wherein the distribution information comprises: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are continuous;
correspondingly, the sending the reference signal according to the comparison result includes:
and if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two continuous synchronous signal blocks, transmitting the at least two continuous synchronous signal blocks by using the channel.
5. The method of claim 1, wherein the distribution information comprises: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are discontinuous;
correspondingly, the sending the reference signal according to the comparison result includes:
if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two discontinuous synchronous signal blocks, sending a specified filling signal by using the time domain symbols between the at least two discontinuous synchronous signal blocks, and sending the at least two discontinuous synchronous signal blocks; or, before transmitting each of the at least two discontinuous synchronization signal blocks, detecting whether the channel is idle by using a time domain symbol between the at least two discontinuous synchronization signal blocks, and if so, transmitting a synchronization signal block to be transmitted after the detection time on the channel.
6. The method of claim 1, wherein the distribution information comprises: the synchronization signal blocks contained in two adjacent different reference signals are not continuous;
correspondingly, the transmitting the reference signal according to the distribution information includes:
before each reference signal is sent, whether the channel is idle is detected by using time domain symbols spaced among discontinuous reference signals, and if so, the reference signal to be sent after the detection time is sent on the channel.
7. The method of claim 1, wherein the distribution information comprises: at least one specific reference signal comprises at least two synchronous signal blocks, wherein at least two synchronous signal blocks are continuously contained between the synchronous signal blocks contained in two adjacent different reference signals and are continuously contained in the reference signals;
correspondingly, the transmitting the reference signal according to the distribution information includes:
and detecting whether the channel is idle by using a time domain symbol in which one of the synchronization signal blocks included in the specific reference signal is located, and if so, transmitting the synchronization signal block to be transmitted after the detection time on the channel.
8. The method according to claim 6 or 7, wherein the different reference signals indicate different beam directions.
9. An apparatus for transmitting a reference signal, comprising:
a determining module, configured to determine distribution information of one or more synchronization signal blocks included in a reference signal on a time domain symbol; wherein each of the synchronization signal blocks is distributed over a plurality of consecutive time domain symbols;
a detection module, configured to detect whether a channel used for transmitting the reference signal is idle;
a sending module, configured to send the reference signal according to the distribution information on a channel used for sending the reference signal if the channel is idle;
wherein the sending module comprises:
a determining unit configured to determine a detection time at which the channel is detected to be idle;
and the first sending unit is used for comparing the detection time with the time corresponding to the time domain symbol corresponding to each synchronous signal block and sending the reference signal according to the comparison result.
10. The apparatus of claim 9, wherein the first sending unit is further configured to:
if the detection time is before the time corresponding to the time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block in each synchronization signal block by using the channel;
and if the detection time is between the time corresponding to the first time domain symbol and the time corresponding to the last time domain symbol corresponding to each synchronization signal block, transmitting at least one synchronization signal block after the detection time by using the channel.
11. The apparatus of claim 10, wherein the first sending unit is further configured to:
and if the vacant time exists between the detection time and the time corresponding to the time domain symbol corresponding to the synchronous signal block after the detection time, transmitting a channel occupation signal on the channel by using the vacant time.
12. The apparatus of claim 9, wherein the distribution information comprises: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are continuous;
accordingly, the first sending unit is further configured to:
and if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two continuous synchronous signal blocks, transmitting the at least two continuous synchronous signal blocks by using the channel.
13. The apparatus of claim 9, wherein the distribution information comprises: the reference signal comprises at least two synchronous signal blocks, and every two adjacent synchronous signal blocks are discontinuous;
accordingly, the first sending unit is further configured to:
if the detection time is before the time corresponding to the time domain symbols corresponding to the at least two discontinuous synchronous signal blocks, sending a specified filling signal by using the time domain symbols between the at least two discontinuous synchronous signal blocks, and sending the at least two discontinuous synchronous signal blocks; or, before transmitting each of the at least two discontinuous synchronization signal blocks, detecting whether the channel is idle by using a time domain symbol between the at least two discontinuous synchronization signal blocks, and if so, transmitting a synchronization signal block to be transmitted after the detection time on the channel.
14. The apparatus of claim 9, wherein the distribution information comprises: the synchronization signal blocks contained in two adjacent different reference signals are not continuous;
accordingly, the sending module comprises:
a second sending unit, configured to detect whether the channel is idle by using a time domain symbol spaced between the discontinuous reference signals before sending each reference signal, and if so, send a reference signal to be sent after the detection time on the channel.
15. The apparatus of claim 9, wherein the distribution information comprises: at least one specific reference signal comprises at least two synchronous signal blocks, wherein at least two synchronous signal blocks are continuously contained between the synchronous signal blocks contained in two adjacent different reference signals and are continuously contained in the reference signals;
accordingly, the sending module comprises:
a third sending unit, configured to detect whether the channel is idle by using a time domain symbol in which one of the synchronization signal blocks included in the specific reference signal is located, and if so, send a synchronization signal block to be sent after the detection time on the channel.
16. The apparatus of claim 14 or 15, wherein the different reference signals indicate different beam directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851110.2A CN107528682B (en) | 2017-09-20 | 2017-09-20 | Method and device for sending reference signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710851110.2A CN107528682B (en) | 2017-09-20 | 2017-09-20 | Method and device for sending reference signal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107528682A CN107528682A (en) | 2017-12-29 |
| CN107528682B true CN107528682B (en) | 2020-12-22 |
Family
ID=60736100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710851110.2A Active CN107528682B (en) | 2017-09-20 | 2017-09-20 | Method and device for sending reference signal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107528682B (en) |
Families Citing this family (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102430666B1 (en) * | 2018-01-02 | 2022-08-09 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | Signal transmission method and apparatus, computer storage medium |
| CN110022591B (en) * | 2018-01-08 | 2021-03-02 | 维沃移动通信有限公司 | Cell selection method and terminal |
| EP3737150B1 (en) | 2018-01-10 | 2021-10-06 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Wireless communication method, terminal device and network device |
| CN108390747B (en) * | 2018-01-19 | 2021-10-22 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for sending synchronization signal |
| CN110099021B (en) * | 2018-01-30 | 2021-10-26 | 成都华为技术有限公司 | Synchronization signal configuration method and device |
| CN110099420A (en) * | 2018-01-31 | 2019-08-06 | 华为技术有限公司 | A kind of wireless communications method and its relevant device |
| CN110149294B (en) * | 2018-02-13 | 2023-12-08 | 华为技术有限公司 | Synchronous signal block transmission method, communication device and communication equipment |
| WO2019161569A1 (en) * | 2018-02-26 | 2019-08-29 | Nokia Shanghai Bell Co., Ltd. | Methods and apparatuses for user equipment measurement performance requirement determination |
| CN110278599A (en) * | 2018-03-13 | 2019-09-24 | 华为技术有限公司 | A kind of method, the network equipment and the user equipment of the transmission of synchronization signal block |
| WO2019174583A1 (en) * | 2018-03-13 | 2019-09-19 | 华为技术有限公司 | Method for transmitting synchronizing signal block, network device and user equipment |
| CN110300459B (en) | 2018-03-23 | 2021-05-18 | 维沃移动通信有限公司 | Signal transmission method and network equipment |
| CN110300442B (en) * | 2018-03-23 | 2020-07-28 | 维沃移动通信有限公司 | Signal sending method and network equipment |
| ES2947086T3 (en) * | 2018-03-29 | 2023-08-01 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Signal transmission method, network device and terminal device |
| CN108496397B (en) * | 2018-04-02 | 2021-08-03 | 北京小米移动软件有限公司 | Method and apparatus for synchronizing broadcast transmission signal blocks |
| EP3780785B1 (en) | 2018-04-02 | 2023-05-31 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and apparatus for transmitting synchronized broadcast information |
| CN108513362B (en) * | 2018-04-04 | 2022-10-21 | 宇龙计算机通信科技(深圳)有限公司 | Channel detection method, device and base station |
| CN108650049B (en) * | 2018-04-04 | 2020-04-07 | 宇龙计算机通信科技(深圳)有限公司 | Channel detection method, device and base station |
| CN110351809B (en) * | 2018-04-04 | 2024-04-26 | 华为技术有限公司 | System message redundancy version determination method and device |
| CN113395154B (en) * | 2018-04-04 | 2022-11-18 | 中兴通讯股份有限公司 | Method for sending and receiving discovery reference signal, base station and terminal |
| WO2019205088A1 (en) * | 2018-04-27 | 2019-10-31 | 北京小米移动软件有限公司 | Method and apparatus for transmitting related information about synchronous broadcast blocks and rmsi |
| CN110446271B (en) * | 2018-05-02 | 2022-11-01 | ***通信有限公司研究院 | Random access method, user equipment and network side equipment |
| CN110475236B (en) * | 2018-05-11 | 2022-01-25 | 中兴通讯股份有限公司 | Time domain position information determining method and device |
| CN110611948B (en) * | 2018-06-14 | 2021-01-08 | 维沃移动通信有限公司 | Transmission method of synchronous signal block, network equipment and terminal |
| EP3823198A4 (en) * | 2018-07-11 | 2021-08-04 | Beijing Xiaomi Mobile Software Co., Ltd. | Methods and apparatuses for transmitting and receiving reference signal, base station, and user equipment |
| CN109076477B (en) * | 2018-07-11 | 2021-01-01 | 北京小米移动软件有限公司 | Method and device for sending and receiving reference signal, base station and user equipment |
| CN109041199B (en) * | 2018-07-16 | 2021-03-09 | 宇龙计算机通信科技(深圳)有限公司 | Method and device for transmitting synchronization signal |
| CN109039561B (en) * | 2018-07-16 | 2021-04-20 | 宇龙计算机通信科技(深圳)有限公司 | Transmission method and device for synchronous signal block index |
| SG11202102691PA (en) | 2018-09-18 | 2021-04-29 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Signal transmission method and apparatus and computer storage medium |
| CN111147405B (en) * | 2018-11-02 | 2022-03-29 | 大唐移动通信设备有限公司 | Signal sending method and terminal |
| CN111147201A (en) * | 2018-11-02 | 2020-05-12 | 索尼公司 | Electronic device, wireless communication method, and computer-readable medium |
| WO2021237607A1 (en) * | 2020-05-28 | 2021-12-02 | Oppo广东移动通信有限公司 | Synchronization signal block (ssb) transmission method and terminal device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113411878A (en) * | 2014-10-20 | 2021-09-17 | 索尼公司 | Apparatus and method for base station side and user side of wireless communication |
| KR102674427B1 (en) * | 2016-02-26 | 2024-06-13 | 삼성전자 주식회사 | Apparatus and method for performing random access in a beamforming system |
| CN106507439B (en) * | 2016-10-28 | 2019-12-10 | 宇龙计算机通信科技(深圳)有限公司 | information transmission method, base station and terminal |
-
2017
- 2017-09-20 CN CN201710851110.2A patent/CN107528682B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| SS Burst Set Composition;Ericsson;《3GPP TSG-RAN WG1 Meeting #88bis,Spokane U.S,R1-1706008》;20170407;第2-5页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107528682A (en) | 2017-12-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107528682B (en) | Method and device for sending reference signal | |
| US9473256B2 (en) | Detecting and avoiding intermodulation interference | |
| CN107682133B (en) | Method and device for generating discovery reference signal and network side equipment | |
| CN108076525B (en) | Uplink time domain resource scheduling method and network equipment | |
| CN105578584B (en) | Uplink synchronisation method and device under asymmetric up-link carrier polymerization | |
| RU2669590C1 (en) | Method and device for resource correlating | |
| JP2021510966A (en) | Information instruction method, information identification method, terminals and base stations | |
| US20130128847A1 (en) | Method and device for transmitting downlink control information, method and device for receiving downlink control information, terminal, base station and communication system | |
| CN108353318B (en) | Method and device for processing physical broadcast channel PBCH bandwidth and base station | |
| EP3091800B1 (en) | Method and apparatus for allocating resource to lte cell | |
| US20210321449A1 (en) | Method, apparatus for contending for a time-frequency resource for sidelink communication, and terminal | |
| US11638264B2 (en) | Methods and devices for resource allocation for control resource region | |
| CN108307509B (en) | Downlink time domain resource scheduling method and network equipment | |
| US20200028636A1 (en) | Signal transmission method and apparatus | |
| CN104968051B (en) | A kind of resource allocation methods and device of partial wideband uplink | |
| US10701676B2 (en) | Clear channel assessment method, information receiving method, and apparatuses thereof | |
| CN108513719A (en) | Transmit the method and device of synchronized broadcast block | |
| CN107666713B (en) | sPDCCH transmission method and device in sTTI | |
| CN106413104A (en) | Method and device for determining CCA energy detection threshold and enhancing downlink demodulation in LAA | |
| CN114466402A (en) | Cell detection method, device, equipment and readable storage medium | |
| CN114885337A (en) | Spectrum sharing apparatus, spectrum sharing method, and computer-readable storage medium | |
| CN115189804B (en) | Method and device for detecting and receiving PDCCH (physical downlink control channel) | |
| CN115087022B (en) | Physical cell identification PCI distribution method and device and electronic equipment | |
| CN111148220A (en) | Positioning method and device | |
| CN104113845A (en) | Resource negotiation method, system and equipment |
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 |