WO2014085967A1 - 一种调整发送时间的方法及用户设备 - Google Patents
一种调整发送时间的方法及用户设备 Download PDFInfo
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- WO2014085967A1 WO2014085967A1 PCT/CN2012/085757 CN2012085757W WO2014085967A1 WO 2014085967 A1 WO2014085967 A1 WO 2014085967A1 CN 2012085757 W CN2012085757 W CN 2012085757W WO 2014085967 A1 WO2014085967 A1 WO 2014085967A1
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- WIPO (PCT)
- Prior art keywords
- random access
- uplink data
- access preamble
- transmission time
- preamble signal
- Prior art date
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- 238000000034 method Methods 0.000 title claims abstract description 56
- 230000005540 biological transmission Effects 0.000 claims abstract description 332
- 125000004122 cyclic group Chemical group 0.000 claims description 34
- 230000003111 delayed effect Effects 0.000 claims description 19
- 238000004891 communication Methods 0.000 abstract description 4
- 238000009937 brining Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 101100260051 Caenorhabditis elegans cct-1 gene Proteins 0.000 description 3
- 101100152619 Drosophila melanogaster CCT1 gene Proteins 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
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- 230000007774 longterm Effects 0.000 description 1
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- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
Definitions
- the present invention relates to the field of communications, and in particular, to a method for adjusting a transmission time and a user equipment.
- LTE Long Term Evolution
- Solution 1 The user equipment abandons sending uplink data and only sends a random access preamble signal; scheme 2, the user equipment abandons sending the random access signal and only sends the uplink data; scheme 3, the user equipment proportionally reduces the transmission power of the uplink data and the random The transmit power of the preamble is accessed such that the sum of the two is equal to the maximum transmit power of the user equipment, and the uplink data and the random access preamble are transmitted.
- the present invention provides a method and user equipment for adjusting transmission time to improve transmission efficiency and transmission success rate of user equipment.
- a method for adjusting a transmission time including:
- the user equipment determines that the random access preamble signal overlaps with the transmission time of the uplink data; when the sum of the transmission power of the random access signal and the transmission power of the uplink data is large Obtaining a transmission time overlap amount ⁇ of the random access preamble signal and the uplink data when the maximum transmit power of the user equipment is used;
- the method further includes: comparing a size of the ⁇ and t CP1 , where the t CP1 is a transmission time of a cyclic prefix CP1 of the uplink data;
- the sending time of the uplink data is delayed according to the ⁇ , and the implementation is: delaying the sending time of the uplink data by ⁇ according to the ⁇ , wherein the The range of ⁇ is ⁇ ⁇ ⁇ 1/2 tori.
- the method further includes: comparing a size of the ⁇ and t CP1 , where the t CP1 is a transmission time of a cyclic prefix CP1 of the uplink data;
- the transmitting time of the random access preamble signal is advanced according to the ⁇ , which is implemented as follows: according to the ⁇ , the transmission time of the random access preamble signal is advanced by ⁇ , The value range of ⁇ is: ⁇ ⁇ 1/2 ⁇ 2 , and the t C p 2 is a transmission time of the cyclic prefix CP2 of the random access preamble.
- the method further includes: comparing a size of the ⁇ and t CP1 , where the t CP1 is a transmission time of a cyclic prefix CP1 of the uplink data;
- the delaying the transmission time of the uplink data and the sending time of the random access preamble according to the ⁇ are specifically implemented as:
- the transmission time of the data is delayed by ⁇ , and the transmission time of the random access preamble signal is advanced by ⁇ , wherein the value range of the ⁇ is: 0 ⁇ a ⁇ l/2 t CP1 , the value range of the ⁇ It is: 0 ⁇ ⁇ ⁇ 1/2 t CP2 , and a + ⁇ > ⁇ .
- the method further includes: Comparing the size of the ⁇ and t CP1 , wherein the t CP1 is a transmission time of the cyclic prefix CP1 of the uplink data;
- the transmitting time of the random access preamble signal is advanced according to the ⁇ , which is specifically implemented as: pre-producing the transmission time of the random access preamble signal by ⁇ according to the The value range of ⁇ is: ⁇ ⁇ 1/2 ⁇ 2 , and the t C p 2 is a transmission time of the cyclic prefix CP2 of the random access preamble.
- the method further includes: comparing a size of the ⁇ and t cpl , where the t cpl is a transmission time of a cyclic prefix CP1 of the uplink data;
- the delaying the transmission time of the uplink data according to the ⁇ and/or advancing the transmission time of the random access preamble is specifically implemented as: according to the ⁇
- the transmission time of the uplink data is delayed by ⁇ , and the transmission time of the random access preamble signal is advanced by ⁇ , wherein the value range is: 0 ⁇ ⁇ ⁇ 1/2 t CP i , the value of the ⁇
- the range is: 0 ⁇ ⁇ ⁇ l / 2 t C p 2 , and ⁇ + ⁇ > ⁇ , the t C p 2 being the transmission time of the cyclic prefix CP2 of the random access preamble.
- the user equipment determines a transmission time of the random access preamble signal and the uplink data. There is overlap, the specific implementation is:
- the first subframe is a last subframe used for transmitting the random access preamble in the frame structure
- the second subframe is a starting subframe of a frame structure for transmitting the uplink data.
- the obtaining The transmission time overlap amount ⁇ of the random access preamble signal and the uplink data is specifically implemented as:
- a user equipment including: a determining unit, an obtaining unit, and an adjusting unit, where
- the determining unit is configured to determine that a random access preamble signal overlaps with a transmission time of the uplink data, and transmit the determination result to the acquiring unit;
- the acquiring unit is configured to acquire the random access preamble signal and the uplink when a sum of a sending power of the random access signal and a sending power of the uplink data is greater than a maximum sending power of the user equipment
- the adjusting unit is configured to delay the sending time of the uplink data according to the ⁇ and/or advance the sending time of the random access preamble signal to offset the random access preamble signal and the uplink data. Transmission time.
- the user equipment further includes: a comparing unit, configured to compare sizes of the ⁇ and t CP1 , where the 1 ⁇ is a loop of the uplink data The transmission time of the prefix CP1;
- the adjusting unit is specifically configured to delay the transmission time of the uplink data by ⁇ according to the ⁇ , wherein the value range of the ⁇ is ⁇ a ⁇ l/ 2 t CP1 .
- the user equipment further includes: a comparing unit, configured to compare sizes of the ⁇ and t CP1 , where the 1 ⁇ is a loop of the uplink data The transmission time of the prefix CP1;
- the adjusting unit is specifically configured to: advance the transmission time of the random access preamble signal by ⁇ according to the ⁇ , where the value range of the ⁇ is: ⁇ ⁇ ⁇ 1/2 t C p 2 , the t C p 2 is the transmission time of the cyclic prefix CP2 of the random access preamble.
- the user equipment further includes: a comparison unit, configured to compare the size of the ⁇ and t CP1 , where the 1 ⁇ is a transmission time of the cyclic prefix CP1 of the uplink data;
- the adjusting unit is specifically configured to: delay the transmission time of the uplink data by 0 according to the ⁇ , and advance the transmission time of the random access preamble by ⁇ , where
- the value range of ⁇ is: 0 ⁇ a ⁇ l/2 t CP1
- the range of ⁇ is: 0 ⁇ ⁇ ⁇ 1/2 t CP2 , and ⁇ + ⁇ > ⁇ .
- the user equipment further includes: a comparing unit, configured to compare sizes of the ⁇ and t CP1 , where the 1 ⁇ is a loop of the uplink data The transmission time of the prefix CP1;
- the adjusting unit is specifically configured to: advance the transmission time of the random access preamble signal by ⁇ according to the ⁇ , where the value range of the ⁇ is: ⁇ ⁇ 1/2 t C p 2 , the t C p 2 is the transmission time of the cyclic prefix CP2 of the random access preamble.
- the user equipment further includes: a comparing unit, configured to compare sizes of the ⁇ and t CP1 , where the 1 ⁇ is a loop of the uplink data The transmission time of the prefix CP1;
- the adjusting unit is specifically configured to delay the transmission time of the uplink data by ⁇ according to the ⁇ , and advance the transmission time of the random access preamble by ⁇ , where
- the value range of ⁇ is: 0 ⁇ a ⁇ l/2 t CP1
- the range of ⁇ is: 0 ⁇ ⁇ ⁇ l/2 t C p 2
- the t C p 2 is the transmission time of the cyclic prefix CP2 of the random access preamble.
- the determining unit is specifically configured to:
- the first subframe is a last subframe used for transmitting the random access preamble in the frame structure
- the second subframe is a starting subframe of a frame structure for transmitting the uplink data.
- the acquiring unit is specifically configured to acquire, according to the difference, the random access preamble signal and the uplink data according to the difference The transmission time overlaps by eight.
- a user equipment including:
- the memory stores a set of program codes
- the processor is configured to invoke the program code stored in the memory to perform the method described in any one of the above.
- the method for adjusting the transmission time and the user equipment overlap when the random access preamble signal sent by the user equipment overlaps with the transmission time of the uplink data, and the transmission power of the random access preamble signal and the uplink data
- the sum of the transmission powers is greater than the maximum power of the user equipment, delaying the transmission time of the uplink data and/or advancing the transmission time of the random access preamble signal, so that the random access preamble signal and the uplink data are
- the transmission time is staggered, which improves the transmission efficiency and transmission success rate of the user equipment.
- FIG. 1 is a schematic diagram of a method for adjusting a sending time according to an embodiment of the present invention
- FIG. 2 is another method for adjusting a sending time according to an embodiment of the present invention
- FIG. 3 is a schematic diagram of a random access preamble and an uplink data transmission time overlap according to an embodiment of the present invention
- FIG. 4 is a schematic diagram of adjusting transmission time according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of another adjustment transmission time according to an embodiment of the present invention.
- FIG. 6 is a user equipment according to an embodiment of the present invention.
- FIG. 7 is another user equipment according to an embodiment of the present invention.
- An embodiment of the present invention provides a method for adjusting a transmission time.
- the method includes: 101: A user equipment determines that a random access preamble signal overlaps with a transmission time of uplink data.
- the method for adjusting the transmission time provided by the embodiment of the present invention may be applied to an LTE system, and may be applied when the random access preamble signal sent by the user equipment overlaps with the transmission time of the uplink data, and the random access preamble When the sum of the transmission power of the signal and the transmission power of the uplink data is greater than the maximum transmission power of the user equipment, the user equipment cannot work normally.
- the transmission time of the random access preamble signal is related to the type of the random access preamble signal, the distance between the user equipment and the base station, the transmission delay, and the like, and the type of the random access preamble signal is configured by the base station;
- the transmission time is related to the distance between the user equipment and the base station, the transmission delay, and the like;
- the transmission power of the random access preamble signal and the transmission power of the uplink data are all configured by the base station.
- SR Scheduling Request
- the user equipment when the user equipment does not have a Scheduling Request (SR) resource, if the uplink data sent by the user equipment to the base station is not successfully transmitted, the user equipment will continuously retransmit the uplink data. If there is any new in the process, The uplink data needs to be sent, and the user equipment sends a random access preamble signal to the base station, and the transmission time of the random access preamble signal and the uplink data may overlap, and the random access preamble signal may exist. hair The case where the sum of the transmission power and the transmission power of the uplink data is greater than the maximum power of the user equipment.
- SR Scheduling Request
- the user equipment may determine, by using a plurality of methods, whether the random access preamble signal and the uplink data transmission time overlap before sending the random access preamble signal and sending the uplink data, which is not limited herein. For example, a method of receiving the time t1 of the random access preamble signal and the size of the time t2 at which the uplink data is transmitted may be compared.
- the transmission power of the random access preamble signal and the transmission power of the uplink data are all configured by the base station at any time or timing, and are sent to the user equipment.
- the user equipment may obtain the transmission time overlap ⁇ of the random access preamble signal and the uplink data by using multiple methods, which is not limited herein. For example, the transmission time and uplink of the random access preamble signal may be calculated. A method of the difference in the transmission time of data.
- the transmission time of the uplink data may be delayed, only the transmission time of the random access preamble signal may be advanced, or the transmission time of the uplink data may be delayed, and the random access preamble signal may be sent.
- the method of adjusting the transmission time is implemented in any manner in advance.
- the method may further include:
- step 103 Comparing the size of the ⁇ and t CP1 , where the t CP1 is the transmission time of the cyclic prefix CP1 of the uplink data, and the step 103 may be specifically implemented as:
- the transmission time delay amount ⁇ of the uplink data is greater than or equal to 1/2 tori
- the set ⁇ ⁇ 1/2 t CP1 at the same time, only > ⁇ , the transmission time of the random access preamble signal and the uplink data can be staggered, so setting ⁇ > ⁇ .
- the transmission time of the random access preamble signal is advanced by ⁇ , where the value range of ⁇ is: ⁇ ⁇ l/2 t C p 2 , and the t C p 2 is the random access
- the base station since the transmission time advancement amount ⁇ of the random access preamble signal is greater than or equal to l/2 t C p 2 , the base station cannot correctly receive the random access preamble signal, so the set ⁇ ⁇ 1/2 t CP2 ; Meanwhile, only when ⁇ > ⁇ , the transmission time of the random access preamble signal and the uplink data can be shifted, and thus (3 > ⁇ is set.
- ⁇ ⁇
- the transmission time of the random access preamble and the uplink data is just shifted.
- the transmission time of the uplink access preamble and the uplink data may be staggered by simultaneously adjusting the transmission time of the uplink data and the random access preamble signal.
- the transmission time of the random access preamble signal is advanced by ⁇ , wherein the value range of the ⁇ is: ⁇ ⁇ 1/2 t CP2 ;
- the user equipment determines that the random access preamble signal overlaps with the transmission time of the uplink data, and specifically includes: determining that the first subframe that sends the random access preamble signal and the second subframe that sends uplink data are And a neighboring subframe; obtaining a difference between a transmission time of the random access preamble signal and a transmission time of a frame structure for transmitting the random access preamble signal, and a time advancement amount of the uplink data; when the ⁇ is greater than And determining, by the difference, the transmission time of the random access preamble signal and the uplink data, where the first subframe is used in the frame structure to transmit the random access preamble signal The last subframe is the starting subframe of the frame structure for transmitting the uplink data.
- first subframe the transmission time of the random access preamble and the uplink data
- second subframe the transmission time of the random access preamble and the uplink data
- the time advancement amount of the uplink data is greater than the difference between the transmission time of the random access preamble signal and the transmission time of the frame structure for transmitting the random access preamble signal
- the random access preamble signal and the uplink data may be determined. There is overlap in transmission time
- the obtaining the transmission time overlap amount ⁇ of the random access preamble signal and the uplink data may include: acquiring the random access preamble signal and the uplink data according to the difference value and the ⁇ The transmission time overlap amount ⁇ .
- the transmission time overlap amount ⁇ of the random access preamble signal and the uplink data may be obtained by the difference between the difference and the TA.
- the method for adjusting the transmission time provided by the embodiment of the present invention, when the random access preamble signal sent by the user equipment overlaps with the transmission time of the uplink data, and the transmission power of the random access preamble signal and the transmission power of the uplink data
- the transmission time of the uplink data is postponed and/or the transmission time of the random access preamble signal is advanced, so that the transmission time of the random access preamble signal and the uplink data are staggered.
- the transmission efficiency and the transmission success rate of the user equipment are improved, and the problem of low transmission efficiency caused by only transmitting the random access preamble signal or only transmitting the uplink data in the first scheme and the second scheme in the prior art is solved, and the scheme 3 is The problem of low transmission efficiency due to the reduction of the transmission power of the random access preamble and the transmission power of the uplink data.
- the method provided by the embodiment of the present invention is based on the LTE system, and may be applied when the random access preamble signal sent by the user equipment overlaps with the transmission time of the uplink data, and the transmission power of the random access preamble signal and the When the sum of the transmission powers of the uplink data is greater than the maximum power of the user equipment, the user equipment cannot work normally.
- the first subframe is a last subframe for transmitting the random access preamble in a frame structure for transmitting a random access preamble
- the second subframe is a starting subframe of a frame structure for transmitting uplink data.
- the first subframe of the random access preamble may be the last transmission subframe of the random access preamble
- the second subframe of the uplink data may be the transmission subframe of the uplink data
- each user equipment connected to the base station needs to use a Time Alignment (TA) to adjust the time for sending the uplink data, where the TA It is configured by the base station at any time or periodically and sent to the user equipment.
- TA Time Alignment
- the difference between the transmission time of the random access preamble signal and the transmission time of the frame structure for transmitting the random access preamble signal is related to the type of the random access preamble signal.
- FIG. 3 there is a schematic diagram in which the transmission time of the random access preamble signal and the uplink data overlap.
- the Nth subframe is the first subframe
- the N+1 subframe is the second subframe
- the rectangular box labeled "Uplink Data” indicates the transmission time of the uplink data
- the rectangular frame labeled "random access preamble” It indicates the transmission time of the random access preamble
- t indicates the transmission time of one subframe.
- the transmission time of the uplink data is Nt-TA.
- the transmission power of the random access preamble signal and the transmission power of the uplink data are all configured by the base station at any time or timing, and are sent to the user equipment.
- ⁇ is the difference between the above difference and TA
- the cyclic prefix CP1 of the uplink data is a constant and can be configured by the base station. 209: Delay the transmission time of the uplink data by ⁇ and/or according to the relationship between ⁇ and t CP1 The transmission time of the random access preamble signal is advanced by ⁇ to stagger the transmission time of the random access preamble signal and the uplink data.
- the second subframe is the first subframe and the N+1 subframe.
- the rectangular box labeled "uplink data” indicates the transmission time of the uplink data
- the rectangular box labeled "random access preamble signal” indicates the transmission time of the random access preamble signal, and is marked with "uplink data 1”.
- the rectangular box indicates the transmission time of the uplink data after the transmission time of the uplink data is delayed by ⁇ , and the transmission time of one subframe is represented by t.
- the figure shows that the transmission time of the uplink data is delayed after the transmission time of the uplink data is delayed.
- Nt- ⁇ + ⁇ in this case, the transmission time of the random access preamble and the uplink data is exactly staggered.
- the first subframe is the first subframe
- the N+1 subframe is the second subframe
- the rectangular frame labeled "uplink data" indicates the transmission time of the uplink data, and is marked with the "random access preamble signal”.
- the rectangular box indicates the transmission time of the random access preamble signal
- the rectangular box labeled "Upstream Data 1" indicates that the transmission time of the uplink data is delayed by a, the transmission time of the uplink data, and the "random access preamble signal" is marked.
- the rectangular box indicates the transmission time of the random access preamble after the transmission time advance ⁇ of the random access preamble, and t indicates the transmission time of one subframe.
- the transmission time of the uplink data is delayed by a, random.
- the transmission time of the uplink data is Nt-TA+a. In this case, the transmission time of the random access preamble and the uplink data is just shifted.
- the method for adjusting the transmission time provided by the embodiment of the present invention, when the random access preamble signal sent by the user equipment overlaps with the transmission time of the uplink data, and the transmission power of the random access preamble signal and the transmission power of the uplink data
- the transmission time of the uplink data is postponed and/or the transmission time of the random access preamble signal is advanced, so that the transmission time of the random access preamble signal and the uplink data are staggered.
- the embodiment of the present invention further provides a user equipment 60, which is shown in FIG. 6, and includes:
- the determining unit 601 is configured to determine that the random access preamble signal overlaps with the transmission time of the uplink data, and transmit the determination result to the acquiring unit 602.
- the user equipment 60 provided by the embodiment of the present invention may be applied to an LTE system, and may be applied when the random access preamble signal sent by the user equipment 60 overlaps with the transmission time of the uplink data, and the random access preamble signal is used.
- the user equipment 60 cannot operate normally.
- the transmission time of the random access preamble signal is related to the type of the random access preamble signal, the distance between the user equipment 60 and the base station, the transmission delay, and the like, and the type of the random access preamble signal is configured by the base station;
- the transmission time of the data is related to the distance between the user equipment 60 and the base station, the transmission delay, and the like; the transmission power of the random access preamble signal and the transmission power of the uplink data are both configured by the base station.
- SR Scheduling Request
- the user equipment 60 when the user equipment 60 does not configure a Scheduling Request (SR) resource, if the uplink data sent by the user equipment 60 to the base station is not successfully transmitted, the user equipment continuously retransmits the uplink data, if The new uplink data needs to be sent, and the user equipment 60 sends a random access preamble signal to the base station, and the transmission time of the random access preamble signal and the uplink data may overlap, and the random access may exist.
- the sum of the transmission power of the preamble signal and the transmission power of the uplink data is greater than the maximum power of the user equipment.
- the determining unit 601 may determine, by using multiple methods, whether the random access preamble signal and the uplink data transmission time overlap before sending the random access preamble signal and transmitting the uplink data, where the limitation is not limited herein. For example, a method of receiving the time t1 of the random access preamble signal and the size of the time t2 at which the uplink data is transmitted may be compared by the base station.
- the obtaining unit 602 is configured to acquire the random access preamble signal and the uplink data when a sum of a transmit power of the random access signal and a transmit power of the uplink data is greater than a maximum transmit power of the user equipment.
- the transmission time overlap amount ⁇ is configured to acquire the random access preamble signal and the uplink data when a sum of a transmit power of the random access signal and a transmit power of the uplink data is greater than a maximum transmit power of the user equipment.
- the transmission power of the random access preamble signal and the transmission power of the uplink data are all configured by the base station at any time or timing, and are sent to the user equipment.
- the obtaining unit 602 may obtain the transmission time overlap amount ⁇ of the random access preamble signal and the uplink data by using multiple methods, which is not limited herein. For example, the transmission time of the random access preamble signal may be calculated. A method of difference in transmission time of uplink data.
- the adjusting unit 603 is configured to delay the sending time of the uplink data according to the ⁇ and/or advance the sending time of the random access preamble signal to offset the random access preamble signal and the uplink data. Transmission time.
- the adjusting unit 603 may delay the transmission time of the uplink data, advance only the transmission time of the random access preamble signal, or delay the transmission time of the uplink data, respectively, and randomize the preamble.
- the method of adjusting the transmission time is implemented in any manner in advance of the signal transmission time.
- the user equipment 60 may further include:
- the comparing unit 604 is configured to compare the ⁇ and t C p ⁇ sizes, where the t CP1 is a transmission time of the cyclic prefix CP1 of the uplink data.
- the comparing unit 604 may be specifically configured to delay the sending time of the uplink data by ⁇ , where the value range of the ⁇ is A A ⁇ l/2 t CP1 ; exemplarily, the sending time of the uplink data is delayed
- the quantity a is greater than or equal to 1/2 t CP1
- the base station cannot correctly receive the uplink data, so a ⁇ 1/2 t CP1 is set ; meanwhile, when only ⁇ > ⁇ , the random access preamble signal and the random access preamble can be made.
- the transmission time of the uplink data is staggered, so a > ⁇ is set.
- ⁇ ⁇
- the transmission time of the random access preamble and the uplink data is exactly shifted.
- the comparing unit 604 may be specifically configured to: advance a transmission time of the random access preamble signal by ⁇ , where the value range of the ⁇ is: ⁇ ⁇ 1/2 ⁇ 2 , the t C p 2
- the transmission time of the cyclic prefix CP2 of the random access preamble signal for example, when the transmission time advancement amount ⁇ of the random access preamble signal is greater than or equal to 1/2 t C p 2 , the base station cannot correctly receive the random time Access the preamble signal, thus setting ⁇ ⁇ 1/2 t CP2 ; at the same time, only ⁇
- the transmission time of the random access preamble signal and the uplink data can be shifted, so that ⁇ > ⁇ is set.
- ⁇ ⁇
- the transmission time of the random access preamble signal and the uplink data is exactly shifted.
- the comparing unit 604 may be specifically configured to delay the sending time of the uplink data, and advance the sending time of the random access preamble signal by ⁇ , where the value range of the ⁇ is: 0 ⁇ a ⁇ l/2 t CP1 , the value range of ⁇ is: 0 ⁇ p ⁇ l/2 t CP2 , and a + ⁇ > ⁇ .
- the transmission time of the uplink access preamble and the uplink data may be staggered by simultaneously adjusting the transmission time of the uplink data and the random access preamble signal.
- the comparing unit 604 may be specifically configured to: advance the sending time of the random access preamble signal by ⁇ , where the value range of the ⁇ is: AP ⁇ l/2 t C p 2 ;
- the comparing unit 604 may be specifically configured to delay the sending time of the uplink data by a, and advance the sending time of the random access preamble signal by ⁇ , where the value of the a is The range is: 0 ⁇ a ⁇ l/2 t CP1 , and the range of ⁇ is: 0 ⁇ p ⁇ l/2 t CP2 , and a + ⁇ > ⁇ .
- the determining unit 601 may be specifically configured to: determine that the first subframe that sends the random access preamble signal and the second subframe that sends the uplink data are adjacent subframes; and acquire the transmission of the random access preamble signal a difference between a time and a transmission time of a frame structure for transmitting the random access preamble signal and a timing advance of the uplink data ⁇ ; when the ⁇ is greater than the difference, determining the random access preamble signal and The transmission time of the uplink data overlaps;
- the first subframe is a last subframe used for transmitting the random access preamble in the frame structure
- the second subframe is a starting subframe of a frame structure for transmitting the uplink data.
- the determining unit 601 may be specifically configured to: according to the difference, the transmission time overlap ⁇ of the random access preamble signal and the uplink data is obtained according to the difference.
- the user equipment 60 may further include:
- the storage unit 605 is configured to store the maximum transmit power of the user equipment 60.
- the user equipment provided by the embodiment of the present invention overlaps the transmission time of the random access preamble signal and the uplink data sent by the user equipment, and the sum of the transmission power of the random access preamble signal and the transmission power of the uplink data.
- the transmission time of the uplink data is delayed and/or the transmission time of the random access preamble signal is advanced, so that the transmission time of the random access preamble signal and the uplink data is staggered, thereby improving
- the transmission efficiency and the transmission success rate of the user equipment are solved, and the problem of low transmission efficiency caused by only transmitting the random access preamble signal or only transmitting the uplink data in the first scheme and the second scheme in the prior art is solved, and the scheme 3 is lowered.
- the problem of low transmission efficiency caused by the transmission power of the random access preamble signal and the transmission power of the uplink data is lowered.
- the embodiment of the present invention further provides a processor, configured to determine that a random access preamble signal overlaps with an uplink data transmission time; when the random access signal is sent with the uplink Obtaining a transmission time overlap amount ⁇ of the random access preamble signal and the uplink data when a sum of transmission powers of the data is greater than a maximum transmission power of the user equipment; and sending the uplink data according to the ⁇ Delaying and/or advancing the transmission time of the random access preamble signal to shift the transmission time of the random access preamble signal and the uplink data.
- the processor can be coupled to a memory for storing information processed by the processor. For the action performed by the processor, refer to the content in the method for adjusting the sending time provided by the foregoing embodiment, and details are not described herein again.
- the processor may be present in the user equipment for determining an uplink transmit power.
- the embodiment of the invention further provides a chip for adjusting the transmission time, and the chip may include the processor described above.
- the disclosed systems, devices, and methods may be implemented in other ways.
- the device embodiments described above are merely illustrative.
- the division of the unit is only a logical function division.
- there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
- the units described as separate components may or may not be physically separated, and the components displayed as the units may or may not be physical units, that is, may be located at one place, or may be distributed to a plurality of network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may be physically included separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
- the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
- the software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention.
- the foregoing storage medium includes: a USB flash drive, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk, and the like can store program codes. Medium.
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Abstract
本发明实施例公开了一种调整发送时间的方法及用户设备,涉及通信领域,用以提高用户设备的发送效率和传输成功率。本发明实施例提供的方法包括:用户设备确定随机接入前导信号与上行数据的传输时间存在交叠;当随机接入信号的发送功率与上行数据的发送功率之和大于用户设备的最大发送功率时,获取随机接入前导信号和上行数据的传输时间交叠量Δ;根据Δ将上行数据的发送时间推迟和/或将随机接入前导信号的发送时间提前,以错开随机接入前导信号和上行数据的传输时间。
Description
一种调整发送时间的方法及用户设备 技术领域
本发明涉及通信领域, 尤其涉及一种调整发送时间的方法及用户设 备。
背景技术
长期演进系统 ( Long Term Evolution , 简称 LTE ) 是一种同步系统。 在该系统中,当用户设备发送的随机接入前导信号与上行数据的传输时间 存在交叠,且该随机接入前导信号的发送功率与该上行数据的发送功率之 和大于该用户设备的最大功率时, 该用户设备不能正常工作。
现有技术一般釆用如下方案解决上述问题:
方案一、 用户设备放弃发送上行数据, 只发送随机接入前导信号; 方 案二, 用户设备放弃发送随机接入信 号, 只发送上行数据; 方案三, 用 户设备按比例降低上行数据的发送功率与随机接入前导信号的发送功率, 使两者之和等于该用户设备的最大发送功率,再发送上行数据和随机接入 前导信号。
在解决上述用户设备不能正常工作的问题的过程中,发明人发现现有 技术中至少存在如下问题: 方案一和方案二, 发送效率低; 方案三, 传输 成功率降低。
发明内容
本发明提供一种调整发送时间的方法及用户设备,以提高用户设备的 发送效率和传输成功率。
为达到上述目的, 本发明釆用如下技术方案:
第一方面, 提供一种调整发送时间的方法, 包括:
用户设备确定随机接入前导信号与上行数据的传输时间存在交叠; 当所述随机接入信号的发送功率与所述上行数据的发送功率之和大
于所述用户设备的最大发送功率时,获取所述随机接入前导信号和所述上 行数据的传输时间交叠量△;
根据所述△将所述上行数据的发送时间推迟和 /或将所述随机接入前 导信号的发送时间提前,以错开所述随机接入前导信号和所述上行数据的 传输时间。
在第一种可能的实现方式中, 根据第一方面, 该方法还包括: 比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ < 1/2 tcPl 时, 所述根据所述△将所述上行数据的发送时间 推迟,具体实现为:根据所述△将所述上行数据的发送时间推迟 α,其中, 所述 α的取值范围为, △ α < 1/2 tori。
在第二种可能的实现方式中, 根据第一方面, 该方法还包括: 比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ < 1/2 tori 时, 所述根据所述△将随机接入前导信号的发送 时间提前, 具体实现为: 根据所述^将所述随机接入前导信号的发送时间 提前 β , 其中, 所述 β的取值范围为: Δ β < 1/2 ρ2 , 所述 tCp2为所述 随机接入前导信号的循环前缀 CP2的传输时间。
在第三种可能的实现方式中, 根据第一方面, 该方法还包括: 比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ < 1/2 tori 时, 所述根据所述△将所述上行数据的发送时间 推迟和将随机接入前导信号的发送时间提前, 具体实现为: 根据所述△将 所述上行数据的发送时间推迟 α ,并将所述随机接入前导信号的发送时间 提前 β , 其中, 所述 α的取值范围为: 0 < a < l/2 tCP1 , 所述 β的取值范 围为: 0 < β < 1/2 tCP2 , 且 a + β >△。
在第四种可能的实现方式中, 根据第一方面, 该方法还包括:
比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ > 1/2 tcPl 时, 所述根据所述△将随机接入前导信号的发送 时间提前, 具体实现为: 根据所述^将所述随机接入前导信号的发送时间 提前 β , 其中, 所述 β的取值范围为: Δ β < 1/2 ρ2 , 所述 tCp2为所述 随机接入前导信号的循环前缀 CP2的传输时间。
在第五种可能的实现方式中, 根据第一方面, 该方法还包括: 比较所述△与 tcpl的大小, 其中, 所述 tcpl为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ > 1/2 tori 时, 所述根据所述△将所述上行数据的发送时间 推迟和 /或将随机接入前导信号的发送时间提前, 具体实现为: 根据所述 △将所述上行数据的发送时间推迟 α ,将所述随机接入前导信号的发送时 间提前 β , 其中, 所述 的取值范围为: 0 < α < 1/2 tCPi , 所述 β的取值 范围为: 0 < β < l/2 tCp2 , 且 α + β > Δ , 所述 tCp2为所述随机接入前导信 号的循环前缀 CP2的传输时间。
在第六种可能的实现方式中,结合第一方面或者第一种可能的实现方 式至第五种可能的实现方式任一种,所述用户设备确定随机接入前导信号 与上行数据的传输时间存在交叠, 具体实现为:
确定发送所述随机接入前导信号的第一子帧和发送上行数据的第二 子帧为相邻子帧;
获取所述随机接入前导信号的传输时间与传输所述随机接入前导信 当所述 TA大于所述差值时, 确定所述随机接入前导信号和所述上行 数据的传输时间存在交叠;
其中,所述第一子帧为所述帧结构中用于传输所述随机接入前导信号 的末尾子帧, 所述第二子帧为传输所述上行数据的帧结构的起始子帧。
在第七种可能的实现方式中, 根据第六种可能的实现方式, 所述获取
所述随机接入前导信号和所述上行数据的传输时间交叠量△ , 具体实现 为:
根据所述差值与所述 TA获取所述随机接入前导信号和所述上行数据 的传输时间交叠量△。
第二方面, 提供一种用户设备, 包括: 确定单元、 获取单元以及调整 单元, 其中,
所述确定单元,用于确定随机接入前导信号与上行数据的传输时间存 在交叠, 并将确定结果传输给所述获取单元;
所述获取单元,用于当所述随机接入信号的发送功率与所述上行数据 的发送功率之和大于所述用户设备的最大发送功率时,获取所述随机接入 前导信号和所述上行数据的传输时间交叠量△;
所述调整单元, 用于根据所述△将所述上行数据的发送时间推迟和 / 或将所述随机接入前导信号的发送时间提前,以错开所述随机接入前导信 号和所述上行数据的传输时间。
在第一种可能的实现方式中, 根据第一方面, 所述用户设备还包括: 比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传 输时间;
当所述△ < l/2tCP1时, 所述调整单元具体用于, 根据所述△将所述上 行数据的发送时间推迟 α ,其中,所述 α的取值范围为, △ a < l/2 tCP1。
在第二种可能的实现方式中, 根据第一方面, 所述用户设备还包括: 比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△ < 1/2 tori 时, 所述调整单元具体用于, 根据所述△将所述 随机接入前导信号的发送时间提前 β , 其中, 所述 β的取值范围为: △ β < 1/2 tCp2 ,所述 tCp2为所述随机接入前导信号的循环前缀 CP2的传输时 间。
在第三种可能的实现方式中, 根据第一方面, 所述用户设备还包括:
比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△ < 1/2 tcPl 时, 所述调整单元具体用于, 根据所述△将所述 上行数据的发送时间推迟 O ,并将所述随机接入前导信号的发送时间提前 β , 其中, 所述 α的取值范围为: 0< a < l/2 tCP1, 所述 β的取值范围为: 0 < β < 1/2 tCP2, 且 α + β > △。
在第四种可能的实现方式中, 根据第一方面, 所述用户设备还包括: 比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△》 \I2 tori 时, 所述调整单元具体用于, 根据所述△将所述 随机接入前导信号的发送时间提前 β , 其中, 所述 β的取值范围为: △ β < 1/2 tCp2,所述 tCp2为所述随机接入前导信号的循环前缀 CP2的传输时 间。
在第五种可能的实现方式中, 根据第一方面, 所述用户设备还包括: 比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△》 \I2 tori 时, 所述调整单元具体用于, 根据所述△将所述 上行数据的发送时间推迟 α , 将所述随机接入前导信号的发送时间提前 β , 其中, 所述 α的取值范围为: 0< a < l/2 tCP1, 所述 β的取值范围为: 0< β < l/2 tCp2, 且 α + β > Δ , 所述 tCp2为所述随机接入前导信号的循环 前缀 CP2的传输时间。
在第六种可能的实现方式中,结合第一方面或者第一种可能的实现方 式至第五种可能的实现方式, 所述确定单元具体用于:
确定发送所述随机接入前导信号的第一子帧和发送上行数据的第二 子帧为相邻子帧;
获取所述随机接入前导信号的传输时间与传输所述随机接入前导信
当所述 TA大于所述差值时, 确定所述随机接入前导信号和所述上行 数据的传输时间存在交叠;
其中,所述第一子帧为所述帧结构中用于传输所述随机接入前导信号 的末尾子帧, 所述第二子帧为传输所述上行数据的帧结构的起始子帧。 在 第七种可能的实现方式中, 根据第六种可能的实现方式, 所述获取单元具 体用于, 根据所述差值与所述 TA获取所述随机接入前导信号和所述上行 数据的传输时间交叠量八。
第三方面, 提供一种用户设备, 包括:
存储器以及与所述存储器连接的处理器;
其中, 所述存储器中存储一组程序代码, 且所述处理器用于调用所述 存储器中存储的程序代码, 执行上述任意一项所述的方法。
本发明的实施例提供的调整发送时间的方法及用户设备,当用户设备 发送的随机接入前导信号与上行数据的传输时间存在交叠,且该随机接入 前导信号的发送功率与该上行数据的发送功率之和大于该用户设备的最 大功率时, 将该上行数据的发送时间推迟和 /或将该随机接入前导信号的 发送时间提前, 以使得该随机接入前导信号和该上行数据的传输时间错 开, 提高了用户设备的发送效率和传输成功率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员 来讲, 在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附 图。
图 1为本发明实施例提供的一种调整发送时间的方法;
图 2为本发明实施例提供的另一种调整发送时间的方法;
图 3 为本发明实施例提供的一种随机接入前导信号与上行数据的传 输时间存在交叠的示意图;
图 4为本发明实施例提供的一种调整发送时间的示意图;
图 5为本发明实施例提供的另一种调整发送时间的示意图;
图 6为本发明实施例提供的一种用户设备;
图 7为本发明实施例提供的另一种用户设备。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进 行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例, 而不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的 范围。
本发明的一个实施例提供一种调整发送时间的方法,参见图 1 , 包括: 101 : 用户设备确定随机接入前导信号与上行数据的传输时间存在交 叠。
示例性的,本发明实施例提供的调整发送时间的方法可以应用在 LTE 系统,可以应用在当用户设备发送的随机接入前导信号与上行数据的传输 时间存在交叠,且该随机接入前导信号的发送功率与该上行数据的发送功 率之和大于该用户设备的最大发送功率时,用户设备无法正常工作的情况 下。 其中, 随机接入前导信号的传输时间与该随机接入前导信号的类型、 用户设备与基站之间的距离、 传输延时等因素有关, 随机接入前导信号的 类型由基站配置; 该上行数据的传输时间与用户设备与基站之间的距离、 传输延时等因素有关;该随机接入前导信号的发送功率和该上行数据的发 送功率均由基站配置。
例如, 当用户设备没有配置调度请求( Scheduling Request, 简称 SR ) 资源时, 若用户设备向基站发送的上行数据没有传输成功, 用户设备会不 断地重传该上行数据, 在此过程中如果有新的上行数据需要发送, 用户设 备就向基站发送一个随机接入前导信号,而该随机接入前导信号和该上行 数据的传输时间就可能存在交叠,且有可能存在该随机接入前导信号的发
送功率与该上行数据的发送功率之和大于该用户设备的最大功率的情况。 示例性的,用户设备可以釆用多种方法在发送随机接入前导信号和发 送上行数据之前,确定该随机接入前导信号与该上行数据的传输时间是否 存在交叠, 此处不进行限定, 例如, 可以通过比较基站接收该随机接入前 导信号的时间 tl与发送该上行数据的时间 t2的大小的方法等。
102 : 当所述随机接入信号的发送功率与所述上行数据的发送功率之 和大于所述用户设备的最大发送功率时,获取所述随机接入前导信号和所 述上行数据的传输时间交叠量△。
示例性的,随机接入前导信号的发送功率和上行数据的发送功率都由 基站随时或者定时配置, 并发送给用户设备。
用户设备可以釆用多种方法获取所述随机接入前导信号和所述上行 数据的传输时间交叠量△, 此处不进行限定, 例如, 可以通过计算随机接 入前导信号的传输时间与上行数据的传输时间的差的方法。
103: 根据所述△将所述上行数据的发送时间推迟和 /或将所述随机接 入前导信号的发送时间提前,以错开所述随机接入前导信号和所述上行数 据的传输时间。
示例性的, 可以分别通过只将所述上行数据的发送时间推迟、 只将随 机接入前导信号的发送时间提前、或者同时将所述上行数据的发送时间推 迟和将随机接入前导信号的发送时间提前任一种方式实现该调整发送时 间的方法。
示例性的, 该方法还可以包括:
比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间, 步骤 103可以具体实现为:
当所述△ < 1/2 tori时,
将所述上行数据的发送时间推迟 α , 其中, 所述 α的取值范围为, △ < < 1/2 tCpi ;
示例性的, 由于上行数据的发送时间推迟量 α大于或者等于 1/2 tori
时, 基站无法正确接收该上行数据, 因此设置的 α < 1/2 tCP1; 同时, 只有 >△时,才可以使得所述随机接入前导信号和所述上行数据的传输时间 错开, 因此设置的 α >△。
优选的, 将所述上行数据的发送时间推迟 α , 且 α=Δ。
示例性的, α=Δ时, 所述随机接入前导信号和所述上行数据的传输 时间恰好错开。
或者, 将所述随机接入前导信号的发送时间提前 β , 其中, 所述 β的 取值范围为: △ β < l/2 tCp2, 所述 tCp2为所述随机接入前导信号的循环 前缀 CP2的传输时间;
示例性的,由于随机接入前导信号的发送时间提前量 β大于或者等于 l/2 tCp2时, 基站无法正确接收该随机接入前导信号, 因此设置的 β < 1/2 tCP2; 同时, 只有 β > Δ时, 才可以使得所述随机接入前导信号和所述上 行数据的传输时间错开, 因此设置的(3 >△。
优选的, 将所述随机接入前导信号的发送时间提前 β , 且 β =Δ。 示例性的, β =Δ时, 所述随机接入前导信号和所述上行数据的传输 时间恰好错开。
或者, 将所述上行数据的发送时间推迟 α , 并将所述随机接入前导信 号的发送时间提前 β , 其中, 所述 α的取值范围为: 0< a < l/2 tCP1, 所 述 β的取值范围为: 0 < β < 1/2 tCP2, 且 a + β >△。
示例性, 可以通过同时调整上行数据和随机接入前导信号的发送时 间, 使得所述随机接入前导信号和所述上行数据的传输时间错开。
优选的, 将所述上行数据的发送时间推迟 a , 并将所述随机接入前导 信号的发送时间提前 β , 其中, 所述 a的取值范围为: 0< a < l/2 tCP1, β的取值范围为: β >0, 且 α + β = Δ。
示例性的, α + β =Δ时, 所述随机接入前导信号和所述上行数据的 传输时间恰好错开。
当所述△》 1/2 tori时,
将所述随机接入前导信号的发送时间提前 β , 其中, 所述 β的取值范 围为: △ β < 1/2 tCP2;
优选的, 将所述随机接入前导信号的发送时间提前 β , 且 β = Δ 。 或者, 将所述上行数据的发送时间推迟 α , 并将所述随机接入前导信 号的发送时间提前 β , 其中, 所述 α的取值范围为: 0 < a < l/2 tCP1 , 所 述 β的取值范围为: 0 < β < 1/2 tCP2 , 且 a + β >△。
优选的, 将所述上行数据的发送时间推迟 a , 并将所述随机接入前导 信号的发送时间提前 β , 其中, 所述 a的取值范围为: 0 < a < l/2 tCP1 , 且 a + β =△。
进一步地,所述用户设备确定随机接入前导信号与上行数据的传输时 间存在交叠, 具体包括: 确定发送所述随机接入前导信号的第一子帧和发 送上行数据的第二子帧为相邻子帧;获取所述随机接入前导信号的传输时 间与传输所述随机接入前导信号的帧结构的传输时间的差值及所述上行 数据的时间提前量 ΤΑ; 当所述 ΤΑ 大于所述差值时, 确定所述随机接入 前导信号和所述上行数据的传输时间存在交叠; 其中, 所述第一子帧为所 述帧结构中用于传输所述随机接入前导信号的末尾子帧,所述第二子帧为 传输所述上行数据的帧结构的起始子帧。
示例性的,帧结构中用于传输随机接入前导信号和传输上行数据的子 帧可能不止一个, 当传输随机接入前导信号的末尾子帧(第一子帧)和传 输上行数据的帧结构的起始子帧(第二子帧)为相邻子帧时, 随机接入前 导信号与上行数据的传输时间可能存在交叠;在第一子帧和第二子帧为相 邻子帧的前提下, 当上行数据的时间提前量 ΤΑ大于随机接入前导信号的 传输时间与传输该随机接入前导信号的帧结构的传输时间的差值时,可以 确定随机接入前导信号和上行数据的传输时间存在交叠
所述获取所述随机接入前导信号和所述上行数据的传输时间交叠量 △, 可以具体包括: 根据所述差值与所述 ΤΑ获取所述随机接入前导信号 和所述上行数据的传输时间交叠量△。
示例性的, 可以通过该差值与 TA求差的方法得到随机接入前导信号 和上行数据的传输时间交叠量△。
本发明的实施例提供的调整发送时间的方法,当用户设备发送的随机 接入前导信号与上行数据的传输时间存在交叠,且该随机接入前导信号的 发送功率与该上行数据的发送功率之和大于该用户设备的最大功率时,将 该上行数据的发送时间推迟和 /或将该随机接入前导信号的发送时间提 前, 以使得该随机接入前导信号和该上行数据的传输时间错开, 提高了用 户设备的发送效率和传输成功率,解决了现有技术的方案一和方案二中因 只发送随机接入前导信号或者只发送上行数据导致的发送效率低的问题, 以及方案三中因降低随机接入前导信号的发送功率和上行数据的发送功 率导致的传输效率低的问题。
本发明的另一实施例通过具体实现方式针对上述实施例进一步进行 描述。
参见图 2 , 包括:
201 : 确定发送随机接入前导信号的第一子帧和发送上行数据的第二 子帧为相邻子帧。
示例性的, 本发明实施例提供的方法基于 LTE 系统, 可以应用在当 用户设备发送的随机接入前导信号与上行数据的传输时间存在交叠,且该 随机接入前导信号的发送功率与该上行数据的发送功率之和大于该用户 设备的最大功率时, 用户设备无法正常工作的情况下。
第一子帧为传输随机接入前导信号的帧结构中用于传输该随机接入 前导信号的末尾子帧, 第二子帧为传输上行数据的帧结构的起始子帧。
随机接入前导信号的第一子帧可以为该随机接入前导信号的最后一 个传输子帧, 上行数据的第二子帧可以为该上行数据的传输子帧。
202: 获取随机接入前导信号的传输时间与传输该随机接入前导信号 示例性的, 由于同一基站的不同用户设备距离该基站的距离可能不
同, 为了保证不同用户设备发出的上行数据在同一时间到达基站, 连接该 基站的每个用户设备需要使用一个时间提前量( Time Alignment,简称 TA ) 来调整发送上行数据的时间, 其中, 该 TA是由基站随时或者定时配置并 发送给用户设备的。
随机接入前导信号的传输时间与传输该随机接入前导信号的帧结构 的传输时间的差值与该随机接入前导信号的类型有关,
203 : 比较该差值与 TA的大小。
204: 当 TA 大于该差值时, 确定随机接入前导信号和上行数据的传 输时间存在交叠。
例如, 参见图 3 , 为一种随机接入前导信号和上行数据的传输时间存 在交叠的示意图。 第 N子帧为第一子帧、 第 N+1子帧为第二子帧、 标有 "上行数据" 的矩形框表示上行数据的传输时间、 标有 "随机接入前导信 号" 的矩形框表示随机接入前导信号的传输时间、 t表示一个子帧的传输 时间, 且由该图可知, 该上行数据的发送时间为 Nt-TA。
205 : 分别获取随机接入前导信号和上行数据的发送功率。
示例性的,随机接入前导信号的发送功率和上行数据的发送功率都由 基站随时或者定时配置, 并发送给用户设备。
206: 比较随机接入前导信号的发送功率与上行数据的发送功率之和 与用户设备的最大发送功率的大小。
207 : 当随机接入前导信号的发送功率与上行数据的发送功率之和大 于用户设备的最大发送功率时, 根据上述差值与 TA计算随机接入前导信 号和上行数据的传输时间交叠量△。
示例性的, △为上述差值与 TA的差;
208: 比较△与 1^ 的大小, 其中, tCP1为上行数据的循环前缀 CP1 的传输时间。
示例性的, 上行数据的循环前缀 CP1为一个常量, 可以由基站配置。 209: 根据△与 tCP1的大小关系, 将上行数据的发送时间推迟 α和 /或
将随机接入前导信号的发送时间提前 β ,以错开随机接入前导信号和上行 数据的传输时间。
示例性的, 当所述△ < 1/2 tCP1 时, 将上行数据的发送时间推迟 α , 且 α = Δ; 参见图 4 , 第 Ν子帧为第一子帧、 第 N+1子帧为第二子帧、 标 有 "上行数据" 的矩形框表示上行数据的传输时间、 标有 "随机接入前导 信号" 的矩形框表示随机接入前导信号的传输时间、 标有 "上行数据 1 " 的矩形框表示上行数据的发送时间推迟 α后该上行数据的传输时间, 由 t 表示一个子帧的传输时间, 该图可知, 将该上行数据的发送时间推迟后, 该上行数据的发送时间为 Nt-ΤΑ+ α , 此情况下, 随机接入前导信号与上 行数据的传输时间恰好错开。
示例性的, 当所述△ > 1/2 tCP1 时, 将上行数据的发送时间推迟 a , 并将随机接入前导信号的发送时间提前 β , 其中, a的取值范围为: 0 < a < 1/2 tori , 且 α + β = Δ。 参见图 5 , 第 Ν子帧为第一子帧、 第 N+1子 帧为第二子帧、 标有 "上行数据" 的矩形框表示上行数据的传输时间、 标 有 "随机接入前导信号" 的矩形框表示随机接入前导信号的传输时间、 标 有 "上行数据 1 " 的矩形框表示上行数据的发送时间推迟 a后该上行数据 的传输时间、 标有 "随机接入前导信号" 的矩形框表示随机接入前导信号 的发送时间提前 β后该随机接入前导信号的传输时间, 由 t表示一个子帧 的传输时间, 由该图可知, 将该上行数据的发送时间推迟 a , 随机接入前 导信号的发送时间提前 β后, 该上行数据的发送时间为 Nt-TA+ a , 此情 况下, 随机接入前导信号与上行数据的传输时间恰好错开。
本发明的实施例提供的调整发送时间的方法,当用户设备发送的随机 接入前导信号与上行数据的传输时间存在交叠,且该随机接入前导信号的 发送功率与该上行数据的发送功率之和大于该用户设备的最大功率时,将 该上行数据的发送时间推迟和 /或将该随机接入前导信号的发送时间提 前, 以使得该随机接入前导信号和该上行数据的传输时间错开, 提高了用 户设备的发送效率和传输成功率,解决了现有技术的方案一和方案二中因
只发送随机接入前导信号或者只发送上行数据导致的发送效率低的问题, 以及方案三中因降低随机接入前导信号的发送功率和上行数据的发送功 率导致的传输效率低的问题。
本发明实施例还提供一种用户设备 60 , 参见图 6 , 包括: 确定单元
601、 获取单元 602以及调整单元 603 , 其中,
确定单元 601 , 用于确定随机接入前导信号与上行数据的传输时间存 在交叠, 并将确定结果传输给所述获取单元 602。
示例性的, 本发明实施例提供的用户设备 60可以应用在 LTE系统, 可以应用在当用户设备 60发送的随机接入前导信号与上行数据的传输时 间存在交叠,且该随机接入前导信号的发送功率与该上行数据的发送功率 之和大于该用户设备 60的最大发送功率时,用户设备 60无法正常工作的 情况下。 其中, 随机接入前导信号的传输时间与该随机接入前导信号的类 型、 用户设备 60与基站之间的距离、 传输延时等因素有关, 随机接入前 导信号的类型由基站配置; 该上行数据的传输时间与用户设备 60与基站 之间的距离、 传输延时等因素有关; 该随机接入前导信号的发送功率和该 上行数据的发送功率均由基站配置。
例如, 当用户设备 60没有配置调度请求 ( Scheduling Request, 简称 SR ) 资源时, 若用户设备 60向基站发送的上行数据没有传输成功, 用户 设备会不断地重传该上行数据, 在此过程中如果有新的上行数据需要发 送, 用户设备 60就向基站发送一个随机接入前导信号, 而该随机接入前 导信号和该上行数据的传输时间就可能存在交叠,且有可能存在该随机接 入前导信号的发送功率与该上行数据的发送功率之和大于该用户设备的 最大功率的情况。
示例性的,确定单元 601可以釆用多种方法在发送随机接入前导信号 和发送上行数据之前,确定该随机接入前导信号与该上行数据的传输时间 是否存在交叠, 此处不进行限定, 例如, 可以通过比较基站接收该随机接 入前导信号的时间 tl与发送该上行数据的时间 t2的大小的方法等。
获取单元 602 , 用于当所述随机接入信号的发送功率与所述上行数据 的发送功率之和大于所述用户设备的最大发送功率时,获取所述随机接入 前导信号和所述上行数据的传输时间交叠量△。
示例性的,随机接入前导信号的发送功率和上行数据的发送功率都由 基站随时或者定时配置, 并发送给用户设备。
获取单元 602 可以釆用多种方法获取所述随机接入前导信号和所述 上行数据的传输时间交叠量△ , 此处不进行限定, 例如, 可以通过计算随 机接入前导信号的传输时间与上行数据的传输时间的差的方法。
调整单元 603 , 用于根据所述△将所述上行数据的发送时间推迟和 / 或将所述随机接入前导信号的发送时间提前,以错开所述随机接入前导信 号和所述上行数据的传输时间。
示例性的,调整单元 603可以分别通过只将所述上行数据的发送时间 推迟、 只将随机接入前导信号的发送时间提前、 或者同时将所述上行数据 的发送时间推迟和将随机接入前导信号的发送时间提前任一种方式实现 该调整发送时间的方法。
进一步地, 参见图 7 , 该用户设备 60还可以包括:
比较单元 604 , 用于比较所述△与 tCp^々大小, 其中, 所述 tCP1为所 述上行数据的循环前缀 CP1的传输时间。
当所述△ < 1/2 tori时,
比较单元 604可以具体用于, 将所述上行数据的发送时间推迟 α , 其 中, 所述 α的取值范围为, A a < l/2 tCP1 ; 示例性的, 由于上行数据的 发送时间推迟量 a大于或者等于 1/2 tCP1时, 基站无法正确接收该上行数 据, 因此设置的 a < 1/2 tCP1 ; 同时, 只有 α > Δ时, 才可以使得所述随机 接入前导信号和所述上行数据的传输时间错开, 因此设置的 a >△。
优选的,比较单元 604具体用于,将所述上行数据的发送时间推迟 a , 且 α = Δ。 示例性的, α = Δ时, 所述随机接入前导信号和所述上行数据 的传输时间恰好错开。
或者, 比较单元 604可以具体用于, 将所述随机接入前导信号的发送 时间提前 β , 其中, 所述 β的取值范围为: Δ β < 1/2 ρ2, 所述 tCp2 为所述随机接入前导信号的循环前缀 CP2 的传输时间; 示例性的, 由于 随机接入前导信号的发送时间提前量 β大于或者等于 1/2 tCp2时, 基站无 法正确接收该随机接入前导信号, 因此设置的 β < 1/2 tCP2; 同时, 只有 β
>△时,才可以使得所述随机接入前导信号和所述上行数据的传输时间错 开, 因此设置的 β >△。
优选的, 比较单元 604具体用于, 将所述随机接入前导信号的发送时 间提前 β , 且 β =Δ。 示例性的, β =Δ时, 所述随机接入前导信号和所 述上行数据的传输时间恰好错开。
或者, 比较单元 604可以具体用于, 将所述上行数据的发送时间推迟 , 并将所述随机接入前导信号的发送时间提前 β , 其中, 所述 α的取值 范围为: 0< a <l/2 tCP1, 所述 β的取值范围为: 0< p <l/2 tCP2, 且 a + β >△。 示例性, 可以通过同时调整上行数据和随机接入前导信号的发送 时间, 使得所述随机接入前导信号和所述上行数据的传输时间错开。
优选的,比较单元 604具体用于,将所述上行数据的发送时间推迟 a , 并将所述随机接入前导信号的发送时间提前 β , 其中, 所述 α的取值范围 为: 0< a < l/2 tCP1, β的取值范围为: β >0, 且 α + β =Δ。 示例性的, α + β =△时, 所述随机接入前导信号和所述上行数据的传输时间恰好错 开。
当所述△》 1/2 tori时,
比较单元 604可以具体用于,将所述随机接入前导信号的发送时间提 前 β , 其中, 所述 β的取值范围为: A P <l/2 tCp2;
优选的, 比较单元 604具体用于, 将所述随机接入前导信号的发送时 间提前 β , 且 β =△。
或者, 比较单元 604可以具体用于, 将所述上行数据的发送时间推迟 a , 并将所述随机接入前导信号的发送时间提前 β , 其中, 所述 a的取值
范围为: 0 < a < l/2 tCP1 , 所述 β的取值范围为: 0 < p < l/2 tCP2 , 且 a + β >△。
优选的,比较单元 604具体用于,将所述上行数据的发送时间推迟 a , 并将所述随机接入前导信号的发送时间提前 β , 其中, 所述 α的取值范围 为: 0 < a < 1/2 tcpi , 且 a + β =△。
进一步地, 确定单元 601可以具体用于: 确定发送所述随机接入前导 信号的第一子帧和发送上行数据的第二子帧为相邻子帧;获取所述随机接 入前导信号的传输时间与传输所述随机接入前导信号的帧结构的传输时 间的差值及所述上行数据的时间提前量 ΤΑ; 当所述 ΤΑ大于所述差值时, 确定所述随机接入前导信号和所述上行数据的传输时间存在交叠;
其中,所述第一子帧为所述帧结构中用于传输所述随机接入前导信号 的末尾子帧, 所述第二子帧为传输所述上行数据的帧结构的起始子帧。
示例性的, 确定单元 601可以具体用于, 根据所述差值与所述 ΤΑ获 取所述随机接入前导信号和所述上行数据的传输时间交叠量△。
可选的, 参见图 7 , 该用户设备 60还可以包括:
存储单元 605 , 用于存储用户设备 60的最大发送功率。
本发明的实施例提供的用户设备,当该用户设备发送的随机接入前导 信号与上行数据的传输时间存在交叠,且该随机接入前导信号的发送功率 与该上行数据的发送功率之和大于该用户设备的最大功率时,将该上行数 据的发送时间推迟和 /或将该随机接入前导信号的发送时间提前, 以使得 该随机接入前导信号和该上行数据的传输时间错开,提高了用户设备的发 送效率和传输成功率,解决了现有技术的方案一和方案二中因只发送随机 接入前导信号或者只发送上行数据导致的发送效率低的问题,以及方案三 中因降低随机接入前导信号的发送功率和上行数据的发送功率导致的传 输效率低的问题。
本发明实施例还提供了一种处理器,用于确定随机接入前导信号与上 行数据的传输时间存在交叠; 当所述随机接入信号的发送功率与所述上行
数据的发送功率之和大于所述用户设备的最大发送功率时,获取所述随机 接入前导信号和所述上行数据的传输时间交叠量△;根据所述△将所述上 行数据的发送时间推迟和 /或将所述随机接入前导信号的发送时间提前, 以错开所述随机接入前导信号和所述上行数据的传输时间。该处理器可以 与存储器相连接, 该存储器用于存储该处理器处理的信息。 该处理器执行 的动作可以参照上述实施例提供的调整发送时间的方法中的内容,在此不 再赘述。 所述处理器可以存在于用户设备, 用于确定上行发送功率。
本发明实施例还提供一种芯片, 该芯片用于调整发送时间, 该芯片可 以包括上述的处理器。
所属领域的技术人员可以清楚地了解到, 为描述的方便和简洁, 上述 描述的系统, 装置和单元的具体工作过程, 可以参考前述方法实施例中的 对应过程, 在此不再赘述。
在本申请所提供的几个实施例中, 应该理解到, 所揭露的系统, 装置 和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅 是示意性的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实 现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成 到另一个系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论 的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单 元的间接耦合或通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的, 作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地 方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的 部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理包括, 也可以两个或两个以上单元集成在 一个单元中。 上述集成的单元既可以釆用硬件的形式实现, 也可以釆用硬 件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元,可以存储在一个计算 机可读取存储介质中。 上述软件功能单元存储在一个存储介质中, 包括若 干指令用以使得一台计算机设备(可以是个人计算机, 服务器, 或者网络 设备等)执行本发明各个实施例所述方法的部分步骤。 而前述的存储介质 包括: U盘、 移动硬盘、 只读存储器 ( Read-Only Memory, 简称 ROM )、 随机存取存储器( Random Access Memory, 简称 RAM )、 磁碟或者光盘等 各种可以存储程序代码的介质。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解:其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。
Claims
1、 一种调整发送时间的方法, 其特征在于, 包括:
用户设备确定随机接入前导信号与上行数据的传输时间存在交叠; 当所述随机接入信号的发送功率与所述上行数据的发送功率之和大于 所述用户设备的最大发送功率时, 获取所述随机接入前导信号和所述上行 数据的传输时间交叠量△;
根据所述△将所述上行数据的发送时间推迟和 /或将所述随机接入前 导信号的发送时间提前, 以错开所述随机接入前导信号和所述上行数据的 传输时间。
2、 根据权利要求 1所述的调整发送时间的方法, 其特征在于, 所述方 法还包括:
比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ < l/2 tCP1时, 所述根据所述△将所述上行数据的发送时间推 迟, 具体包括: 根据所述△将所述上行数据的发送时间推迟 α , 其中, 所 述 α的取值范围为, A a < l/2 tCP1。
3、 根据权利要求 1所述的调整发送时间的方法, 其特征在于, 所述方 法还包括:
比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ < l/2 tCP1时, 所述根据所述△将随机接入前导信号的发送时 间提前, 具体包括: 根据所述△将所述随机接入前导信号的发送时间提前 β , 其中, 所述 β的取值范围为: A P < l/2 tCp2 , 所述 tCp2为所述随机 接入前导信号的循环前缀 CP2的传输时间。
4、 根据权利要求 1所述的调整发送时间的方法, 其特征在于, 所述方 法还包括:
比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前
缀 CP1的传输时间;
当所述△ <l/2tCP1时, 所述根据所述△将所述上行数据的发送时间推 迟和将随机接入前导信号的发送时间提前, 具体包括: 根据所述△将所述 上行数据的发送时间推迟 O , 并将所述随机接入前导信号的发送时间提前 β , 其中, 所述 α的取值范围为: 0< a <l/2tCP1, 所述 β的取值范围为: 0 < β < 1/2 tCP2, 且 α + β >△。
5、 根据权利要求 1所述的调整发送时间的方法, 其特征在于, 所述方 法还包括:
比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ >l/2tCP1时, 所述根据所述△将随机接入前导信号的发送时 间提前, 具体包括: 根据所述△将所述随机接入前导信号的发送时间提前 β , 其中, 所述 β的取值范围为: A P <l/2 tCp2, 所述 tCp2为所述随机 接入前导信号的循环前缀 CP2的传输时间。
6、 根据权利要求 1所述的调整发送时间的方法, 其特征在于, 所述方 法还包括:
比较所述△与 tCP1的大小, 其中, 所述 tCP1为所述上行数据的循环前 缀 CP1的传输时间;
当所述△ >l/2tCP1时, 所述根据所述△将所述上行数据的发送时间推 迟和 /或将随机接入前导信号的发送时间提前, 具体包括: 根据所述△将所 述上行数据的发送时间推迟 a , 将所述随机接入前导信号的发送时间提前 β , 其中, 所述 a的取值范围为: 0< a <l/2tCP1 , 所述 β的取值范围为: 0 < β < 1/2 tCp2, 且 α+β > Δ , 所述 tCp2为所述随机接入前导信号的循环 前缀 CP2的传输时间。
7、根据权利要求 1-6任一项所述的调整发送时间的方法,其特征在于, 所述用户设备确定随机接入前导信号与上行数据的传输时间存在交叠, 具 体包括:
确定发送所述随机接入前导信号的第一子帧和发送上行数据的第二子 帧为相邻子帧;
获取所述随机接入前导信号的传输时间与传输所述随机接入前导信号 当所述 TA 大于所述差值时, 确定所述随机接入前导信号和所述上行 数据的传输时间存在交叠;
其中, 所述第一子帧为所述帧结构中用于传输所述随机接入前导信号 的末尾子帧, 所述第二子帧为传输所述上行数据的帧结构的起始子帧。
8、 根据权利要求 7所述的调整发送时间的方法, 其特征在于, 所述获 取所述随机接入前导信号和所述上行数据的传输时间交叠量△ ,具体包括: 根据所述差值与所述 TA 获取所述随机接入前导信号和所述上行数据 的传输时间交叠量△。
9、 一种用户设备, 其特征在于, 包括: 确定单元、 获取单元以及调整 单元, 其中,
所述确定单元, 用于确定随机接入前导信号与上行数据的传输时间存 在交叠, 并将确定结果传输给所述获取单元;
所述获取单元, 用于当所述随机接入信号的发送功率与所述上行数据 的发送功率之和大于所述用户设备的最大发送功率时, 获取所述随机接入 前导信号和所述上行数据的传输时间交叠量△;
所述调整单元, 用于根据所述△将所述上行数据的发送时间推迟和 /或 将所述随机接入前导信号的发送时间提前, 以错开所述随机接入前导信号 和所述上行数据的传输时间。
10、 根据权利要求 9所述的用户设备, 其特征在于, 所述用户设备还 包括:
比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△ < 1/2 tCP1时, 所述调整单元具体用于, 根据所述△将所述上
行数据的发送时间推迟 α , 其中, 所述 α的取值范围为, A a <l/2tCP1。
11、 根据权利要求 9所述的用户设备, 其特征在于, 所述用户设备还 包括:
比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述 A <l/2tCP1 时, 所述调整单元具体用于, 根据所述^将所述随 机接入前导信号的发送时间提前 β , 其中, 所述 β的取值范围为: Δ β
< 1/2 tCp2,所述 tCp2为所述随机接入前导信号的循环前缀 CP2的传输时间。
12、 根据权利要求 9所述的用户设备, 其特征在于, 所述用户设备还 包括:
比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△ < 1/2 tCP1时, 所述调整单元具体用于, 根据所述△将所述上 行数据的发送时间推迟 a ,并将所述随机接入前导信号的发送时间提前 β , 其中, 所述 a的取值范围为: 0< a <l/2 tCP1, 所述 β的取值范围为: 0< β < 1/2 tCP2, 且 α + β >△。
13、 根据权利要求 9所述的用户设备, 其特征在于, 所述用户设备还 包括:
比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△ > 1/2 tCP1时, 所述调整单元具体用于, 根据所述^将所述随 机接入前导信号的发送时间提前 β , 其中, 所述 β的取值范围为: Δ β
< 1/2 tCp2,所述 tCp2为所述随机接入前导信号的循环前缀 CP2的传输时间。
14、 根据权利要求 9所述的用户设备, 其特征在于, 所述用户设备还 包括:
比较单元, 用于比较所述△与 tCP1的大小, 其中, 所述 1^ 为所述上 行数据的循环前缀 CP1的传输时间;
当所述△ > 1/2 tCP1时, 所述调整单元具体用于, 根据所述△将所述上 行数据的发送时间推迟 0 , 将所述随机接入前导信号的发送时间提前 β , 其中, 所述 α的取值范围为: 0 < a < l/2 tCP1 , 所述 β的取值范围为: 0 < β < l/2 tCp2 , 且 α + β > Δ , 所述 tCp2为所述随机接入前导信号的循环前缀 CP2的传输时间。
15、 根据权利要求 9-14任一项所述的用户设备, 其特征在于, 所述确 定单元具体用于:
确定发送所述随机接入前导信号的第一子帧和发送上行数据的第二子 帧为相邻子帧;
获取所述随机接入前导信号的传输时间与传输所述随机接入前导信号 当所述 TA 大于所述差值时, 确定所述随机接入前导信号和所述上行 数据的传输时间存在交叠;
其中, 所述第一子帧为所述帧结构中用于传输所述随机接入前导信号 的末尾子帧, 所述第二子帧为传输所述上行数据的帧结构的起始子帧。
16、 根据权利要求 15所述的用户设备, 其特征在于, 所述获取单元具 体用于:
根据所述差值与所述 TA 获取所述随机接入前导信号和所述上行数据 的传输时间交叠量△。
17、 一种用户设备, 其特征在于, 包括:
存储器以及与所述存储器连接的处理器;
其中, 所述存储器中存储一组程序代码, 且所述处理器用于调用所述 存储器中存储的程序代码, 执行如权利要求 1-8中任意一项所述的方法。
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- 2012-12-03 WO PCT/CN2012/085757 patent/WO2014085967A1/zh active Application Filing
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Also Published As
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CN104025690A (zh) | 2014-09-03 |
CN104025690B (zh) | 2017-12-29 |
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