CN102196518B - Processing method and device during cell switching - Google Patents
Processing method and device during cell switching Download PDFInfo
- Publication number
- CN102196518B CN102196518B CN201010130248.1A CN201010130248A CN102196518B CN 102196518 B CN102196518 B CN 102196518B CN 201010130248 A CN201010130248 A CN 201010130248A CN 102196518 B CN102196518 B CN 102196518B
- Authority
- CN
- China
- Prior art keywords
- cell
- new access
- terminal
- access cell
- sfn
- 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
- 238000003672 processing method Methods 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 113
- 230000005540 biological transmission Effects 0.000 abstract description 27
- 238000004904 shortening Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a processing method and device during cell switching. The method comprises the steps of executing a random access process between a terminal and a new access cell needed to be accessed by the terminal while the cell switching is determined to be carried out; and beginning to receive a system message of the new access cell by the terminal in a random access process so as to obtain an SFN (Single Frequency Network) of the new access cell. According to the method and the device disclosed by the invention, the interruption time length of uplink data transmission of the terminal in the cell switching process can be reduced.
Description
Technical Field
The present invention relates to cell handover technologies, and in particular, to a processing method and apparatus for cell handover.
Background
In the 3GPP Long Term Evolution (LTE)36.331v870 protocol, operations that the terminal needs to perform at the time of cell handover are given: the terminal firstly carries out downlink synchronization in a new cell to be accessed, then a Radio Bearer (RB) is reestablished, a system configuration parameter contained in a radio resource control protocol connection reconfiguration (RRC connection reconfiguration) message is configured to a bottom layer, after the random access is completed, the system configuration irrelevant to a System Frame Number (SFN) of the new cell is started, and the system configuration relevant to the SFN can be started only after the terminal acquires the SFN.
Specifically, a process of a terminal performing cell handover in an LTE system is shown in fig. 1, where a cell to which the terminal currently accesses is set as a cell a, and a cell to which the terminal needs to switch to access is set as a cell B, and as shown in fig. 1, the cell handover process includes the following steps:
step 101: the terminal resides in cell a and is in an RRC CONNECTED (RRC _ CONNECTED) state; when the network side determines to switch the terminal from the cell A to the cell B, the cell A sends an RRCconnection configuration message to the terminal to indicate the terminal to be switched to the cell B.
At this time, the terminal does not read the system message of the cell B, and therefore does not acquire the SFN of the cell B.
Step 102: the terminal executes a random access process with the cell B, and after the random access is completed, the terminal starts system configuration irrelevant to the SFN of the cell B and sends an RRC connection reconfiguration Complete message to the cell B.
Step 103: the terminal starts to receive the system message of the cell B to acquire the SFN of the cell B, and the system configuration related to the SFN of the cell B is started.
Then, the terminal can transmit uplink data through a Buffer Status Report (BSR process).
Since the uplink data transmission of the terminal must be performed after the terminal activates the SFN-related system configuration with the cell B, the terminal cannot immediately resume the transmission of the uplink data after completing the random access to the cell B. Namely: after the terminal completes the random access to the cell, since the SFN of the cell B is not acquired by the terminal, the system configuration related to the SFN of the cell B is enabled, and even if there is uplink data to be transmitted at this time in the terminal, the uplink data cannot be immediately transmitted to the cell B. The terminal needs to receive a Master Information Block (MIB) in the system message of the cell B first, and then obtains the SFN of the cell B, and can resume transmission of uplink data after starting system configuration related to the SFN. Therefore, the interruption time of uplink data transmission in the cell switching process of the terminal is long, and the uplink data transmission performance of the terminal is influenced.
Disclosure of Invention
In view of the above, the technical problem to be solved by the present invention is to provide a method and an apparatus for processing in cell handover, which can shorten the interruption time of uplink data transmission during the cell handover performed by a terminal.
Therefore, the embodiment of the invention adopts the following technical scheme:
the embodiment of the invention provides a processing method in cell switching, which comprises the following steps:
when the terminal determines to switch the cells, the terminal executes a random access process with a new access cell needing to be accessed; and in the random access process, the terminal starts to receive the system message of the new access cell to acquire the system frame number SFN of the new access cell.
Wherein, the starting to receive the system message of the new access cell in the random access process specifically includes:
when the terminal sends a random access Preamble PRACH Preamble message to the new access cell to initiate a random access process to the new access cell, the terminal starts to receive a system message of the new access cell; or,
and after the terminal sends the PRACH Preamble message, the terminal starts to receive the system message of the new access cell at any time before the random access is successful.
The method further comprises the following steps:
before the random access process is completed, the terminal acquires a master information block MIB in the system message of the new access cell and acquires an SFN of the new access cell from the MIB;
after the terminal completes the random access process with the new access cell, starting all system configurations, wherein all the system configurations comprise system configurations related or unrelated to the SFN of the new access cell; and the terminal sends a radio resource control protocol RRC connection reconfiguration completion message to the new access cell so as to indicate the completion of the cell switching process of the terminal to the new access cell.
After the terminal starts to receive the system message of the new access cell, the method further comprises:
after the terminal completes the random access process with the new access cell, starting system configuration irrelevant to the SFN of the new access cell, and sending an RRC connection reconfiguration completion message to the new access cell so as to indicate the completion of the cell switching process of the terminal to the new access cell;
and the terminal acquires the MIB in the system message of the new access cell, acquires the SFN of the new access cell from the MIB, and starts system configuration related to the SFN of the new access cell.
The method for the terminal to determine cell switching specifically comprises the following steps:
and the terminal determines to receive an RRC connection reconfiguration message sent by the current access cell, wherein the reconfiguration message is used for instructing the terminal to switch the cell from the current access cell to the new access cell.
An embodiment of the present invention further provides a processing apparatus in cell handover, including:
the access unit is used for executing a random access process with a new access cell needing to be accessed when determining cell switching;
and an obtaining unit, configured to start receiving the system message of the new access cell in the random access process to obtain the SFN of the new access cell.
Wherein, the obtaining unit is specifically configured to: when the terminal sends a PRACHPpreamble message to the new access cell to initiate a random access process to the new access cell, the terminal starts to receive a system message of the new access cell to acquire an SFN of the new access cell; or, after the terminal sends the PRACH Preamble message, at any time before the random access is successful, the terminal starts to receive the system message of the new access cell to acquire the SFN of the new access cell.
The acquisition unit is further configured to: before the random access process is completed, acquiring an MIB in the system message of the new access cell, and acquiring an SFN of the new access cell from the MIB;
the apparatus further comprises:
a first enabling unit, configured to enable all system configurations after completing a random access procedure with the new access cell, where the all system configurations include system configurations related to or unrelated to the SFN of the new access cell;
a first sending unit, configured to send an RRC connection reconfiguration complete message to the new access cell, so as to indicate to the new access cell that a cell handover procedure of the terminal is completed.
The acquisition unit is further configured to: after the random access process is finished, acquiring an MIB in a system message of the new access cell, and acquiring an SFN of the new access cell from the MIB;
the device also includes:
a second enabling unit, configured to enable system configuration unrelated to the SFN of the new access cell after the random access procedure with the new access cell is completed;
a second sending unit, configured to send an RRC connection reconfiguration complete message to the new access cell, so as to indicate to the new access cell that a cell handover procedure of the terminal is complete;
and the third starting unit is used for starting the system configuration related to the SFN of the new access cell after the obtaining unit obtains the SFN of the new access cell.
The access unit is specifically configured to: when determining that the RRC connection reconfiguration message sent by the current access cell is received, executing a random access process between the RRC connection reconfiguration message and a new access cell needing to be accessed; the reconfiguration message is used for instructing the terminal to switch the cell from the current access cell to the new access cell.
The technical effect analysis of the technical scheme is as follows:
in the process of executing the random access between the terminal and the new access cell, the terminal starts to receive the system message of the new access cell to acquire the SFN of the new access cell, so that part or even all of the process of acquiring the SFN of the new access cell by the terminal is executed in parallel with the random access process of the terminal, the interruption time of uplink data transmission in the process of cell switching by the terminal is shortened, and the uplink data transmission performance of the terminal is improved.
Drawings
Fig. 1 is a schematic flow chart of a cell switching method in the prior art;
fig. 2 is a flowchart illustrating a processing method in cell handover according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a processing method in cell handover according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating another exemplary processing method for cell handover according to the present invention;
FIG. 5 is a diagram illustrating a processing apparatus for cell handover according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a processing device in cell handover according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a processing device in a cell handover according to another embodiment of the present invention.
Detailed Description
The following describes in detail implementation of a processing method and apparatus in cell handover according to embodiments of the present invention with reference to the accompanying drawings.
Fig. 2 is a schematic flow chart of a processing method in cell handover according to an embodiment of the present invention, as shown in fig. 2, including:
step 201: when the terminal determines to switch the cells, the terminal executes a random access process with a new access cell needing to be accessed;
step 202: and in the random access process, the terminal starts to receive the system message of the new access cell so as to acquire the SFN of the new access cell.
In the processing method in cell switching shown in fig. 2, during the random access process between the terminal and the new access cell, the terminal starts to receive the system message of the new access cell to acquire the SFN of the new access cell, so that part or even all of the process of acquiring the SFN of the new access cell by the terminal is executed in parallel with the random access process of the terminal, thereby shortening the interruption time of uplink data transmission during cell switching by the terminal.
In practical application, the terminal may be configured to start receiving the system message of the cell B at any time in the random access process, for example: when the terminal sends a random access Preamble (PRACH Preamble) message to the new access cell to initiate a random access process to the new access cell, the terminal starts to receive a system message of the new access cell; or, after the terminal sends the PRACHPreamble message, the terminal starts to receive the system message of the new access cell at any time before the random access is successful. Because the random access process has duration, the terminal needs a certain time from the start of acquiring the system message of the new access cell to the acquisition of the SFN of the new access cell, therefore, according to the difference of the set time when the terminal starts to receive the system message of the new access cell and the position in the random access process, the SFN of the new access cell acquired by the terminal may be before the random access of the terminal is successful, and at this time, the cell switching process of the terminal is as shown in fig. 3; or, after acquiring the SFN of the new access cell, the terminal may also succeed in random access, at this time, a cell handover process of the terminal is as shown in fig. 4.
Fig. 3 is a schematic flow chart of a processing method in cell handover according to an embodiment of the present invention, in the method, a current access cell of a terminal is set as a cell a, and a new access cell to which the cell needs to access is set as a cell B, as shown in fig. 3, the method includes:
step 301: the terminal resides in a cell A and is in an RRC _ CONNECTED state; when the network side determines to switch the service cell of the terminal from the cell A to the cell B, the cell A sends an RRCconnection reconfiguration message to the terminal to indicate the terminal to switch to the cell B.
Step 302: the terminal sends PRACH Preamble message to the cell B to initiate the random access process to the cell B.
Step 303: in the random access process, the terminal starts to receive the system message of the cell B to acquire the SFN of the cell B.
The cell system message is broadcasted on the corresponding channel resource at a certain period, and the terminal can acquire the system message of a certain cell (for example, cell B) on the corresponding channel resource, and details on how to acquire the system message are not repeated here.
The system message of the cell generally includes the MIB, and the SFN of the cell is generally included in the MIB of the cell, so when the terminal acquires the SFN of the cell B, as described in step 304, the terminal generally needs to acquire the MIB in the system message of the cell B first, and then acquire the SFN of the cell B from the MIB.
Step 304: the terminal acquires the MIB in the system message of the cell B, and further acquires the SFN of the cell B contained in the MIB.
Step 305: after the terminal finishes random access with the new access cell, starting all system configurations; and the terminal sends an RRC connection reconfiguration complete message to the new access cell so as to indicate the cell B that the cell switching process of the terminal is completed.
The all system configurations include system configurations related to the SFN of cell B and system configurations unrelated to the SFN of cell B.
Then, the terminal can perform uplink data transmission.
In the processing method in cell switching shown in fig. 3, in the process of initiating random access, the terminal starts to receive the system message of the new access cell to obtain the SFN of the new access cell, and the terminal obtains the SFN of the cell B before the random access is successful, so that all relevant system configurations of the terminal are enabled when the switching is completed, the terminal can start transmission of uplink data immediately after the switching is completed, thereby shortening the interruption time of uplink data transmission in the process of cell switching performed by the terminal, and improving the uplink transmission performance of the terminal.
Fig. 4 is a schematic flow chart of another processing method in cell handover according to an embodiment of the present invention, in the method, a current access cell of a terminal is set as a cell a, and a new access cell to which the cell needs to access is a cell B, as shown in fig. 4, including:
steps 401 to 403 refer to steps 301 to 303, which are not described herein again.
Step 404: after the terminal finishes the random access process with the new access cell, starting system configuration irrelevant to the SFN of the cell B; and sending an RRC connection reconfiguration complete message to the cell B to indicate to the cell B that the cell handover procedure of the terminal is complete.
Step 405: the terminal acquires the MIB in the system message of the cell B, further acquires the SFN of the cell B contained in the MIB, and starts system configuration related to the SFN of the cell B.
Then, the terminal can perform uplink data transmission.
In the processing method in cell switching shown in fig. 4, during the process of initiating random access, the terminal starts to receive the system message of the new access cell to obtain the SFN of the new access cell, and although the MIB is still received after the switching process from the terminal to the cell B is completed, and the SFN of the cell B is further obtained, in the method shown in fig. 4, a part of the process of obtaining the SFN of the new access cell by the terminal is still executed in parallel with the random access process of the terminal, so that the interruption time of uplink data transmission during cell switching by the terminal is shortened, and the uplink transmission performance of the terminal is improved.
Specifically, assuming that the time of the terminal random access process is T1 and the time of the terminal acquiring the SFN of the cell B is T2, in the prior art, the interruption time T of the terminal uplink data transmission is T1+ T2; in the cell switching process shown in fig. 3, the interruption time T of uplink data transmission of the terminal is T1; in the cell switching process shown in fig. 4, the interruption time T of uplink data transmission of the terminal is less than T1+ T2; therefore, it can be seen that, by starting to receive the system message of the newly accessed cell in the terminal random access process, the interruption time of uplink data transmission in cell switching by the terminal can be shortened, so that compared with the prior art, the uplink data transmission of the terminal can be recovered more quickly, and the uplink data transmission performance of the terminal is improved.
The range of the switching delay given in the 36.331v870 protocol is 50ms to 2s, and the time required for the terminal to read the MIB is 40ms to 80ms, so that the time when the terminal starts to read the newly accessed cell is preferably set to be the time when the random access process is initiated, so that the terminal can acquire the MIB in the switching process in most cases, further acquire the SFN of the newly accessed cell, and completely save the time for the terminal to read the MIB, as shown in fig. 3, thereby maximally shortening the interruption time of uplink data transmission; even if the implementation procedure shown in fig. 4 occurs, the interruption time of the uplink data transmission can still be shortened, that is, the time is about 50ms, so that the terminal can resume the uplink data transmission more quickly.
Corresponding to the processing method in cell handover, an embodiment of the present invention further provides a processing apparatus in cell handover, as shown in fig. 5, the apparatus includes:
an access unit 510, configured to perform a random access procedure with a new access cell that needs to be accessed when determining to perform cell handover;
an obtaining unit 520, configured to start receiving the system message of the new access cell in the random access process to obtain the SFN of the new access cell.
Preferably, the access unit 310 may be specifically configured to: when determining that the RRC connection reconfiguration message sent by the current access cell is received, executing a random access process between the RRC connection reconfiguration message and a new access cell needing to be accessed; the reconfiguration message is used for instructing the terminal to switch the cell from the current access cell to the new access cell.
Preferably, the obtaining unit may be specifically configured to: when the terminal sends a PRACHPpreamble message to the new access cell to initiate a random access process to the new access cell, the terminal starts to receive a system message of the new access cell to acquire an SFN of the new access cell; or, after the terminal sends the PRACH Preamble message, at any time before the random access is successful, the terminal starts to receive the system message of the new access cell to acquire the SFN of the new access cell.
Preferably, the obtaining unit may be further configured to: before the random access process is completed, acquiring an MIB in the system message of the new access cell, and acquiring an SFN of the new access cell from the MIB;
accordingly, as shown in fig. 6, the apparatus further comprises:
a first enabling unit 630, configured to enable all system configurations after completing the random access procedure with the new access cell, where the all system configurations include system configurations related to or unrelated to the SFN of the new access cell;
a first sending unit 640, configured to send an RRC connection reconfiguration complete message to the new access cell, so as to indicate to the new access cell that a cell handover procedure of a terminal is completed.
Preferably, the obtaining unit may be further configured to: after the random access process is finished, acquiring an MIB in a system message of the new access cell, and acquiring an SFN of the new access cell from the MIB;
accordingly, as shown in fig. 7, the apparatus further includes:
a second enabling unit 730, configured to enable system configuration unrelated to the SFN of the new access cell after the random access procedure with the new access cell is completed;
a second sending unit 740, configured to send an RRC connection reconfiguration complete message to the new access cell, so as to indicate to the new access cell that a cell handover procedure of the terminal is completed;
a third enabling unit 750, configured to enable system configuration related to the SFN of the new access cell after the SFN of the new access cell is acquired.
In the processing apparatuses in cell switching shown in fig. 5 to fig. 7, the obtaining unit starts to receive the system message of the new access cell to obtain the SFN of the new access cell in the random access process, so that part or even all of the process of obtaining the SFN of the new access cell by the terminal is executed in parallel with the random access process of the terminal, thereby shortening the interruption time of uplink data transmission during cell switching by the terminal.
It can be understood by those skilled in the art that the process of implementing the processing method in cell handover according to the above embodiments may be implemented by hardware associated with program instructions, where the program may be stored in a readable storage medium, and when executed, the program performs corresponding steps in the above methods. The storage medium may be as follows: ROM/RAM, magnetic disk, optical disk, etc.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (8)
1. A processing method in cell switching is characterized by comprising the following steps:
when the terminal determines to switch the cells, the terminal executes a random access process with a new access cell needing to be accessed; in the random access process, the terminal starts to receive the system message of the new access cell to acquire the system frame number SFN of the new access cell, namely, part or even all of the process of acquiring the system account number SFN of the new access cell by the terminal is executed in parallel with the random access process of the terminal;
wherein, the starting to receive the system message of the new access cell in the random access process specifically includes:
when the terminal sends a random access Preamble PRACH Preamble message to the new access cell to initiate a random access process to the new access cell, the terminal starts to receive a system message of the new access cell; or,
and after the terminal sends the PRACH Preamble message, the terminal starts to receive the system message of the new access cell at any time before the random access is successful.
2. The method of claim 1, further comprising:
before the random access process is completed, the terminal acquires a master information block MIB in the system message of the new access cell and acquires an SFN of the new access cell from the MIB;
after the terminal completes the random access process with the new access cell, starting all system configurations, wherein all the system configurations comprise system configurations related or unrelated to the SFN of the new access cell; and the terminal sends a radio resource control protocol RRC connection reconfiguration completion message to the new access cell so as to indicate the completion of the cell switching process of the terminal to the new access cell.
3. The method of claim 1, wherein after the terminal starts receiving the system message of the new access cell, the method further comprises:
after the terminal completes the random access process with the new access cell, starting system configuration irrelevant to the SFN of the new access cell, and sending an RRC connection reconfiguration completion message to the new access cell so as to indicate the completion of the cell switching process of the terminal to the new access cell;
and the terminal acquires the MIB in the system message of the new access cell, acquires the SFN of the new access cell from the MIB, and starts system configuration related to the SFN of the new access cell.
4. The method according to claim 1, wherein the determining, by the terminal, to perform cell handover specifically includes:
and the terminal determines to receive an RRC connection reconfiguration message sent by the current access cell, wherein the reconfiguration message is used for instructing the terminal to switch the cell from the current access cell to the new access cell.
5. A processing apparatus in cell handover, comprising:
the access unit is used for executing a random access process with a new access cell needing to be accessed when determining cell switching;
an obtaining unit, configured to start receiving the system message of the new access cell in the random access process to obtain the SFN of the new access cell, that is, a part or even all of a process of obtaining the system account SFN of the new access cell by the terminal is executed in parallel with the random access process of the terminal;
wherein, the obtaining unit is specifically configured to: when the terminal sends a PRACHPpreamble message to the new access cell to initiate a random access process to the new access cell, the terminal starts to receive a system message of the new access cell to acquire an SFN of the new access cell; or, after the terminal sends the PRACH Preamble message, at any time before the random access is successful, the terminal starts to receive the system message of the new access cell to acquire the SFN of the new access cell.
6. The apparatus of claim 5, wherein the obtaining unit is further configured to: before the random access process is completed, acquiring an MIB in the system message of the new access cell, and acquiring an SFN of the new access cell from the MIB;
the apparatus further comprises:
a first enabling unit, configured to enable all system configurations after completing a random access procedure with the new access cell, where the all system configurations include system configurations related to or unrelated to the SFN of the new access cell;
a first sending unit, configured to send an RRC connection reconfiguration complete message to the new access cell, so as to indicate to the new access cell that a cell handover procedure of the terminal is completed.
7. The apparatus of claim 5, wherein the obtaining unit is further configured to: after the random access process is finished, acquiring an MIB in a system message of the new access cell, and acquiring an SFN of the new access cell from the MIB;
the device also includes:
a second enabling unit, configured to enable system configuration unrelated to the SFN of the new access cell after the random access procedure with the new access cell is completed;
a second sending unit, configured to send an RRC connection reconfiguration complete message to the new access cell, so as to indicate to the new access cell that a cell handover procedure of the terminal is complete;
and the third starting unit is used for starting the system configuration related to the SFN of the new access cell after the obtaining unit obtains the SFN of the new access cell.
8. The apparatus of claim 5, wherein the access unit is specifically configured to: when determining that the RRC connection reconfiguration message sent by the current access cell is received, executing a random access process between the RRC connection reconfiguration message and a new access cell needing to be accessed; the reconfiguration message is used for instructing the terminal to switch the cell from the current access cell to the new access cell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010130248.1A CN102196518B (en) | 2010-03-15 | 2010-03-15 | Processing method and device during cell switching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010130248.1A CN102196518B (en) | 2010-03-15 | 2010-03-15 | Processing method and device during cell switching |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102196518A CN102196518A (en) | 2011-09-21 |
| CN102196518B true CN102196518B (en) | 2015-01-07 |
Family
ID=44603733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010130248.1A Active CN102196518B (en) | 2010-03-15 | 2010-03-15 | Processing method and device during cell switching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102196518B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013170484A1 (en) * | 2012-05-18 | 2013-11-21 | 华为技术有限公司 | Method for notifying cell configuration information and related apparatus and system |
| KR102208633B1 (en) * | 2013-11-01 | 2021-01-28 | 삼성전자 주식회사 | Method for obtaining System Frame Number in a terminal, terminal and mobile communication system |
| CN105578535A (en) * | 2014-10-08 | 2016-05-11 | 展讯通信（上海）有限公司 | Cell hard handover processing system, cell hard handover processing method and mobile terminal |
| EP3291604B1 (en) * | 2015-05-15 | 2019-09-04 | Huawei Technologies Co., Ltd. | Method for establishing connection with radio resource, user equipment and base station |
| WO2017085275A1 (en) | 2015-11-18 | 2017-05-26 | Ipcom Gmbh & Co. Kg | Single frequency network random access |
| EP3547752B1 (en) | 2016-12-30 | 2021-05-26 | Huawei Technologies Co., Ltd. | Cell switching method and terminal device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128063A (en) * | 2007-09-24 | 2008-02-20 | 中兴通讯股份有限公司 | Method for terminal random access to cellular wireless communication system and group identifier generation method |
| CN101483919A (en) * | 2008-01-08 | 2009-07-15 | 华为技术有限公司 | Wireless resource allocation method used for stochastic access and base band equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1205834C (en) * | 2000-03-23 | 2005-06-08 | 西门子移动通讯公司 | Access channel scheduling in a radio communication system |
-
2010
- 2010-03-15 CN CN201010130248.1A patent/CN102196518B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101128063A (en) * | 2007-09-24 | 2008-02-20 | 中兴通讯股份有限公司 | Method for terminal random access to cellular wireless communication system and group identifier generation method |
| CN101483919A (en) * | 2008-01-08 | 2009-07-15 | 华为技术有限公司 | Wireless resource allocation method used for stochastic access and base band equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102196518A (en) | 2011-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108282835B (en) | Method and user equipment for establishing a call in a mobile communication system | |
| KR102055657B1 (en) | Random access method and apparatus of MTC UE | |
| US10098157B2 (en) | Random access apparatus and method | |
| CN111083751B (en) | Information transmission method and device, storage medium and electronic device | |
| JP7566088B2 (en) | COMMUNICATION SYSTEM AND METHOD | |
| EP4443948A2 (en) | Measurement reporting for network maintenance methods and systems | |
| CN102196518B (en) | Processing method and device during cell switching | |
| JP6362279B2 (en) | Neighbor cell system information provisioning | |
| EP3668182A1 (en) | Communication method and device | |
| US20160088529A1 (en) | Method and apparatus for performing priority based cell reselection | |
| CN101651877A (en) | Method, system and device for allocating and measuring gap | |
| EP3567969A1 (en) | Access method and access device | |
| US9813964B2 (en) | Signaling for mobility and mobility state estimation | |
| CN104105148A (en) | Cell switching method and equipment | |
| CN110784889A (en) | Measurement method, measurement configuration method, device, terminal and network side equipment | |
| CN106550415A (en) | Uplink synchronisation method, equipment and system | |
| CN111954272A (en) | Data transmission method and equipment | |
| JP2024026284A (en) | Handling inconsistencies between source and target cell idle mode measurement settings during cell reselection | |
| CN110958103B (en) | Uplink data transmission method, user equipment and readable storage medium | |
| JP2022531831A (en) | Channel transmission methods, electronic devices and storage media | |
| CN110831233B (en) | Method, device and user equipment for fast random access | |
| CN106304175B (en) | Pilot frequency measurement method in cluster system | |
| CN110636578B (en) | Method, device, storage medium and terminal for requesting system message | |
| CN102857964A (en) | Terminal switching method and device | |
| CN110049577B (en) | Method and device for reestablishing Radio Resource Control (RRC) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |