WO2013097212A1 - 避免时间提前量组重配后上行干扰的方法及装置 - Google Patents
避免时间提前量组重配后上行干扰的方法及装置 Download PDFInfo
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- WO2013097212A1 WO2013097212A1 PCT/CN2011/085125 CN2011085125W WO2013097212A1 WO 2013097212 A1 WO2013097212 A1 WO 2013097212A1 CN 2011085125 W CN2011085125 W CN 2011085125W WO 2013097212 A1 WO2013097212 A1 WO 2013097212A1
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- Prior art keywords
- serving cell
- terminal
- advance group
- time advance
- reconfiguration
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2612—Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
Definitions
- the present invention relates to the field of communications, and in particular, to a method and apparatus for avoiding uplink interference after re-allocation of time advance group. Background technique
- LTE-A Enhanced Long Term Evolution
- carrier aggregation technology is introduced to provide higher transmission rates to terminals, and five deployment scenarios of carrier aggregation technology are defined.
- the uplink only carrier aggregation in the frequency band is supported.
- scenario 4 and scenario 5 that is, different receiving sites of uplink signals of different carriers, the uplink carrier aggregation technology is not supported.
- the carrier aggregation technology is further enhanced, wherein an enhanced aspect is that for the uplink, carrier aggregation in different frequency bands can be supported, and in the scenario 4 and scenario 5, the uplink carrier is also supported. polymerization.
- FIG. 1 is a schematic diagram of the need to reconfigure the timing advance group.
- the base station eNB configures the primary serving cell fl and the secondary serving cell f2 for the terminal, and they belong to the same frequency band.
- the terminal is located at point A, and the receiving station of the secondary serving cell (Scell) and the primary serving cell (Pcell) are both eNBs, and therefore belong to the same TAG, and are defined as pTAG (the TAG where gpPCell is located). ).
- the terminal moves to the coverage of the repeater (e.g., point B), and the receiving station of the uplink signal on the secondary serving cell becomes a repeater, which is different from the receiving station of the primary serving cell. Therefore, the secondary serving cell is no longer suitable for the same TAG as the primary serving cell, and the serving cell needs to be reconfigured into a new TAG, defined as sTAG (ie, only the SCell TAG).
- the terminal moves from the range covered by the repeater to the range covered by the eNB.
- the secondary serving cell of the terminal needs to be reconfigured from the sTAG into the pTAG.
- the terminal can immediately be on the secondary serving cell after the reconfiguration process is completed. Send an upstream signal.
- the terminal needs to perform a random access procedure on the serving cell. To get the initial TA value of the sTAG.
- the TA value cannot guarantee the time when the uplink signal of the terminal reaches the repeater. It is synchronized with the arrival time of other terminals, and thus may cause mutual interference with other terminals.
- the embodiment of the invention provides a method and a device for avoiding the uplink interference after the time-adjusted group reconfiguration, which is used to solve the problem that the terminal uses the old TA value and the new uplink access point to perform uplink after the TAG re-matching of the terminal in the prior art.
- the problem arises due to the fact that the time when the uplink signal arrives at the uplink access point is not synchronized with other terminals.
- An embodiment of the present invention provides a method for avoiding uplink interference after a time-adjusted group reconfiguration, where the method includes: the terminal re-allocating a time advance group to which the secondary serving cell belongs;
- the terminal After the terminal completes the reconfiguration of the time advance group of the serving cell, if the current timing advance group is a new timing advance group, the terminal stops the periodic channel sounding reference signal transmission on the secondary serving cell. And/or the terminal stops uplink non-adaptive retransmission on the secondary serving cell.
- the embodiment of the present invention further provides a method for avoiding uplink interference after re-allocation of a time-advanced group, the method comprising: the terminal re-allocating the time advance group to which the secondary serving cell belongs;
- the terminal After the terminal completes the time advance group reconfiguration of the serving cell, if the current time advance group is a new time advance group, the terminal releases the periodic channel sounding reference signal configuration of the serving cell, and/ Or stop the uplink non-adaptive retransmission on the serving cell.
- the embodiment of the present invention further provides a method for avoiding uplink interference after re-allocation of a time-advanced group, the method comprising: the terminal re-allocating the time advance group to which the secondary serving cell belongs;
- the terminal After the terminal completes the time advance group reconfiguration of the serving cell, if the current time advance group is a new time advance group, the terminal stops the periodic channel sounding reference signal transmission on the serving cell. And/or clearing the cache of all uplink hybrid automatic repeat requests corresponding to the secondary serving cell.
- the embodiment of the present invention further provides a method for avoiding uplink interference after re-allocation of a time-advanced group, the method comprising: the terminal re-allocating the time advance group to which the secondary serving cell belongs;
- the terminal After the terminal completes the time advance group reconfiguration of the serving cell, if the current time advance group is a new time advance group, the terminal releases the periodic channel sounding reference signal configuration of the serving cell, and/ Or clear the cache of all uplink hybrid automatic repeat requests corresponding to the serving cell.
- An embodiment of the present invention further provides an apparatus for avoiding uplink interference after re-allocation of a time advance quantity group, where the apparatus includes a time advance group reconfiguration unit, configured to reconfigure a time advance group to which the secondary serving cell belongs; a determining unit, configured to determine whether the time advance group after the reconfiguration is a new time advance group, if yes Notifying the execution unit;
- the executing unit is configured to stop, according to the notification sent by the determining unit, the periodic channel sounding reference signal transmission of the terminal on the secondary serving cell, and/or stop the uplink non-terminal of the terminal on the secondary serving cell Adaptive retransmission.
- the embodiment of the present invention further provides an apparatus for avoiding uplink interference after time reconfiguration group reconfiguration, where the apparatus includes: a time advance quantity group reconfiguration unit, configured to reconfigure a time advance quantity group to which the secondary serving cell belongs a determining unit, configured to determine whether the time advance quantity group after the reconfiguration is a new time advance quantity group, and if yes, notify the execution unit;
- the executing unit is configured to release, according to the notification sent by the determining unit, a periodic channel sounding reference signal configuration of the terminal on the secondary serving cell, and/or stop uplinking of the terminal on the secondary serving cell Non-adaptive retransmission.
- the embodiment of the present invention further provides an apparatus for avoiding uplink interference after time reconfiguration group reconfiguration, where the apparatus includes: a time advance quantity group reconfiguration unit, configured to reconfigure a time advance quantity group to which the secondary serving cell belongs a determining unit, configured to determine whether the time advance quantity group after the reconfiguration is a new time advance quantity group, and if yes, notify the execution unit;
- the executing unit is configured to stop, according to the notification sent by the determining unit, the periodic channel sounding reference signal transmission of the terminal on the secondary serving cell, and/or clear all uplink mixing corresponding to the secondary serving cell of the terminal Automatically resend the cache of requests.
- the embodiment of the present invention further provides an apparatus for avoiding uplink interference after time reconfiguration group reconfiguration, where the apparatus includes: a time advance quantity group reconfiguration unit, configured to reconfigure a time advance quantity group to which the secondary serving cell belongs a determining unit, configured to determine whether the time advance quantity group after the reconfiguration is a new time advance quantity group, and if yes, notify the execution unit;
- the executing unit is configured to release a periodic channel sounding reference signal configuration of the serving cell of the terminal according to the notification sent by the determining unit, and/or clear all uplink mixing corresponding to the serving cell of the terminal Automatically resend the cache of requests.
- the terminal can be prevented from updating the TA value after the TAG reconfiguration, so that the old TA value is used to communicate with the access point in the new TAG to cause interference to other terminals.
- Figure 1 shows a schematic diagram of the need to reconfigure the timing advance group
- FIG. 2 is a flowchart of a method for reconfiguring a terminal from a pTAG to a new sTAG and obtaining a TA value according to an embodiment of the present invention
- FIG. 3 is a flowchart of an uplink interference method for avoiding time advance group reconfiguration according to an embodiment of the present invention
- FIG. 4 is a specific flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention
- FIG. 5 is a schematic diagram of avoiding time-adjusted group reconfiguration after uplink time according to an embodiment of the present invention
- FIG. 1 is a flowchart of a method for reconfiguring a terminal from a pTAG to a new sTAG and obtaining a TA value according to an embodiment of the present invention
- FIG. 3 is a flowchart of an uplink interference method for avoiding time advance group reconfiguration according to an embodiment of the present invention
- FIG. 4 is a specific flowchar
- FIG. 6 is a specific flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention
- FIG. 7 is a diagram of avoiding timing advance group weight according to an embodiment of the present invention
- FIG. 8 is a flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention
- FIG. 9 is a flowchart of avoiding time advance according to an embodiment of the present invention
- FIG. 10 is a flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention
- FIG. 11 is a flowchart of the present invention.
- FIG. 12 is a structural diagram of an uplink interference device after avoiding time advance quantity group reconfiguration according to an embodiment of the present invention
- FIG. 12 is a structural diagram of an uplink interference device after avoiding time advance quantity group reconfiguration
- FIG. 14 is a structural diagram of an uplink interference device after avoiding time advance group reconfiguration according to an embodiment of the present invention
- FIG. 2 is a flowchart of reconfiguring a terminal from a pTAG to a new sTAG and obtaining a TA value according to an embodiment of the present invention.
- This embodiment can be applied to the second scenario in FIG. 1 , and can also be applied to scenario 2 and scenario 3 of carrier aggregation.
- scenario 2 and scenario 3 multiple serving cells configured for the terminal are carriers in different frequency bands. In the case of a probability of 2%-3%, the uplink time advancement of these serving cells will be different, and the process of reconfiguring pTAG into a new sTAG and obtaining the TA value is required.
- Step 201 The base station determines that the secondary serving cell of the terminal needs to perform reconfiguration of the TAG.
- the base station transmits wireless resource reconfiguration signaling to the terminal.
- the terminal performs TAG reconfiguration of the secondary serving cell, that is, the secondary serving cell is reconfigured from the pTAG to the IJsTAG.
- Tl The point in time when the reconfiguration is completed.
- Step 202 The terminal returns a reconfiguration complete message to the base station.
- Step 203 The base station sends a physical downlink control channel command (PDCCH order) to the terminal to trigger the terminal to initiate a random access procedure on the secondary serving cell.
- PDCCH order a physical downlink control channel command
- Step 204 The terminal sends a preamble (Preamble) in the secondary serving cell.
- Step 205 The base station returns a response (RAR) for the secondary serving cell to the terminal, where the response includes a TA value. At this time, the time when the terminal receives the TA value of the new TAG is recorded as T2.
- the TA value can also be obtained from the TA command media access control layer layer control element (TA command MAC CE).
- TA command MAC CE the TA command media access control layer layer control element
- FIG. 3 is a flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention.
- Step 301 The terminal reconfigures the TAG to which the secondary serving cell belongs.
- Step 302 After the terminal completes the TAG reconfiguration of the serving cell, if the current TAG is a new TAG, the terminal stops the periodic channel sounding reference signal (Type-0 SRS) transmission on the secondary serving cell. And/or the terminal stops uplink non-adaptive retransmission on the secondary serving cell.
- the terminal stops the periodic channel sounding reference signal (Type-0 SRS) transmission on the secondary serving cell.
- the terminal stops uplink non-adaptive retransmission on the secondary serving cell.
- step 302 the terminal cancels the aperiodic SRS (Type-1 SRS) transmission in the secondary serving cell if there is an aperiodic channel sounding reference signal waiting to be transmitted on the serving cell.
- aperiodic SRS Type-1 SRS
- the terminal further includes, after receiving the TA value of the new TAG, that is, for example, the time point T2 in FIG. 2, the terminal may restart the transmission of the Type-0 SRS on the serving cell, and/ Or restart the uplink non-adaptive retransmission on the serving cell.
- the embodiment of the present invention can prevent the terminal from updating the TA value after performing TAG reconfiguration, thereby using the old TA value to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal service.
- FIG. 4 is a specific flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention.
- Step 401 For the secondary serving cell, after the radio resource control protocol layer (RRC layer) of the terminal completes the TAG reconfiguration of the secondary serving cell, the TAG index (TAG index) of the TAG to which the serving cell belongs and the TAG The Time Advance Timer (TAT) used is notified to the Medium Access Control Protocol layer (MAC layer).
- RRC layer radio resource control protocol layer
- Step 402 After receiving the TAG reconfiguration notification from the serving cell of the RRC layer, the MAC layer of the terminal determines whether the serving cell is reconfigured to a new TAG. One or more TAGs may be maintained in the terminal. If the currently reconfigured TAG is the same as the TAG being maintained by the terminal, the current reconfigured TAG is not new, and the process proceeds to step 405; otherwise, the current reconfiguration is performed. The TAG is new and proceeds to step 403. If the terminal maintains other TAGs, the corresponding TA value is known, and the terminal can use the TA value for uplink communication without causing interference to other terminals.
- Step 403 The terminal stops the transmission of the Type-0 SRS on the secondary serving cell; the terminal cancels the transmission of the Type-1 SRS on the secondary serving cell; the terminal stops the uplink non-adaptive retransmission on the secondary serving cell .
- the terminal may use one or several of the above three processing methods depending on which uplink communication the terminal has on the serving cell.
- the terminal may stop using any one of the following two methods in the uplink non-adaptive retransmission on the serving cell.
- the terminal keeps all the uplink hybrid automatic retransmission request feedback flags. Change (which may include a flag for successful transmission and a flag for transmission failure), and stop uplink non-adaptive retransmission on the serving cell;
- the second method is, the terminal sets the uplink hybrid automatic retransmission request feedback flag to The flag of successful transmission, so that the uplink non-adaptive retransmission on the serving cell stops.
- Step 404 after the terminal receives the TA value for the newly configured TAG, for example, receiving the TA value in the manner of the embodiment in FIG. 2, the terminal restarts the transmission of the Type-0 SRS on the secondary serving cell, and/ Or the terminal restarts the uplink non-adaptive retransmission on the serving cell (for the first mode described above), the foregoing two restarting transmissions are also determined by the uplink communication requirement that the terminal may exist in the serving cell. .
- Step 405 The terminal performs uplink communication normally in the serving cell by using a known TA value.
- FIG. 5 is a flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention.
- Step 501 The terminal reconfigures the TAG to which the secondary serving cell belongs.
- Step 502 After the terminal completes the TAG reconfiguration of the serving cell, if the current TAG is a new TAG, the terminal releases the Type-0 SRS configuration of the serving cell, and/or the terminal stops at the time. Uplink non-adaptive retransmission on the serving cell.
- the Type-0 SRS configuration of the release terminal prevents the terminal from performing Type-0 SRS uplink communication.
- the method further includes: if there is a non-periodic channel sounding reference signal waiting to be transmitted on the serving cell No., the terminal cancels the Type-1 SRS transmission on the serving cell.
- the terminal may further restart the uplink non-adaptive retransmission on the serving cell after the terminal receives the TA value of the new TAG, that is, for example, the time point T2 in FIG.
- the embodiment of the present invention can prevent the terminal from updating the threshold after the TAG reconfiguration, so that the old TA value is used to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal service.
- FIG. 6 is a specific flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention.
- Step 601 For the secondary serving cell, after the RRC layer of the terminal completes the TAG reconfiguration of the secondary serving cell, the TAG index (TAG index) of the TAG to which the serving cell belongs and the TAG The time advance timer (TAT) used is notified to the media access control protocol layer (MAC layer) of the terminal.
- TAG index TAG index
- MAC layer media access control protocol layer
- Step 602 The RRC layer of the terminal determines whether the secondary serving cell is re-allocated to a new TAG, and one or more TAGs may be maintained in the terminal. If the reconfigured TAG is the same as a certain TAG being maintained by the terminal, The reconfigured TAG is not new, and the process proceeds to step 607; otherwise, the reconfigured TAG is new, and the process proceeds to step 603.
- Step 603 The terminal releases the configuration of the Type-0 SRS.
- Step 604 After receiving the TAG reconfiguration notification from the serving cell of the RRC layer, the MAC layer of the terminal determines whether the serving cell is reconfigured to a new TAG. One or more TAGs may be maintained in the terminal. If the currently reconfigured TAG is the same as the TAG being maintained by the terminal, the currently reconfigured TAG is not new, and the process proceeds to step 607; otherwise, the reconfigured TAG is new. Go to step 605. If the terminal maintains other TAGs, the corresponding TA value is known, and the terminal can use the TA value for uplink communication without causing interference to other terminals. .
- Step 605 The terminal cancels the transmission of the Type-1 SRS on the serving cell; the terminal stops the uplink non-adaptive retransmission on the serving cell.
- the terminal may adopt one or more of the three processing methods in the foregoing steps 603 and 605, which are determined according to which uplink communication exists in the serving cell by the terminal.
- the terminal may stop using any one of the following two methods in the uplink non-adaptive retransmission on the serving cell.
- the terminal keeps all the uplink hybrid automatic retransmission request feedback flags. Change (which may include a flag for successful transmission and a flag for transmission failure), and stop uplink non-adaptive retransmission on the serving cell;
- the second method is, the terminal sets the uplink hybrid automatic retransmission request feedback flag to The flag of successful transmission, so that the uplink non-adaptive retransmission on the serving cell stops.
- Step 606 After receiving the TA value for the current TAG, the terminal receives the TA, for example, by using the embodiment in FIG. Value, restarting the uplink non-adaptive retransmission of the terminal on the serving cell (for the first mode described above).
- Step 607 The terminal performs uplink communication normally in the secondary serving cell by using a known TA value.
- FIG. 7 is a flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention.
- Step 701 The terminal reconfigures the TAG to which the secondary serving cell belongs.
- Step 702 After the terminal completes the TAG reconfiguration of the serving cell, if the current TAG is a new TAG, the terminal stops Type-0 SRS transmission on the serving cell, and/or clears the serving cell. Corresponding to all upstream hybrid automatic repeat request cache (HARQ buffer). The clearing of the HARQ buffer of the terminal in the serving cell may prevent the terminal from performing uplink non-adaptive retransmission.
- HARQ buffer Corresponding to all upstream hybrid automatic repeat request cache
- step 702 the method further includes: if there is an aperiodic channel sounding reference signal waiting to be transmitted on the serving cell, the terminal cancels the Type-1 SRS transmission on the secondary serving cell.
- the terminal further restarts the transmission of the Type-0 SRS on the serving cell after the terminal receives the TA value of the new TAG, that is, for example, the time point T2 in FIG.
- the embodiment of the present invention can prevent the terminal from updating the TA value after performing TAG reconfiguration, thereby using the old TA value to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal service.
- FIG. 8 is a specific flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention.
- Step 801 For the secondary serving cell, after the radio resource control protocol layer (RRC layer) of the terminal completes the TAG reconfiguration of the secondary serving cell, the TAG index (TAG index) of the TAG to which the serving cell belongs and the TAG The Time Advance Timer (TAT) used is notified to the Medium Access Control Protocol layer (MAC layer).
- RRC layer radio resource control protocol layer
- Step 802 after the MAC layer receives the TAG reconfiguration notification from the serving cell of the RRC layer, the MAC layer of the terminal determines whether the serving cell is reconfigured to a new TAG, and one or more of the terminals may be maintained in the terminal.
- TAG if the currently reconfigured TAG is the same as the TAG being maintained by the terminal, the reconfigured TAG is not a new TAG, and the process proceeds to step 805; otherwise, the reconfigured TAG is a new TAG, and the process proceeds to step 803. If the terminal maintains other TAGs, the corresponding TA value is known, and the terminal can use the TA value for uplink communication without causing interference to other terminals.
- Step 803 The terminal stops the transmission of the Type-0 SRS on the secondary serving cell; the terminal cancels the transmission of the Type-1 SRS on the secondary serving cell; and clears all the uplink HARQ buffers corresponding to the secondary serving cell.
- the terminal may adopt one or several of the above three processing methods, which is determined according to which uplink communication the terminal has in the serving cell.
- Step 804 after the terminal receives the TA value for the current TAG, for example, receiving the TA value in the manner of the embodiment in FIG. 2, restarting the transmission of the Type-0 SRS of the terminal on the serving cell, the foregoing restarting Retransmission is also dependent on the uplink communication requirements that the terminal may have in the serving cell.
- Step 805 The terminal performs uplink communication normally by using the known TA value in the serving cell.
- FIG. 9 is a flowchart of a method for avoiding uplink interference after re-allocation of time advance quantity groups according to an embodiment of the present invention.
- Step 901 The terminal reconfigures the TAG to which the secondary serving cell belongs.
- Step 902 After the terminal completes the TAG reconfiguration of the serving cell, if the current TAG is a new TAG, the terminal releases the Type-0 SRS configuration, and/or clears all uplink HARQ buffers corresponding to the serving cell. .
- the clearing of the uplink HARQ buffer corresponding to the secondary serving cell may prevent the terminal from performing uplink non-adaptive retransmission, and the Type-0 SRS configuration of the releasing terminal prevents the terminal from performing Type-0 SRS uplink communication. .
- the foregoing step 902 further includes: if there is an aperiodic channel sounding reference signal waiting to be transmitted on the serving cell, the terminal cancels the Type-1 SRS transmission on the secondary serving cell.
- the embodiment of the present invention can prevent the terminal from updating the TA value after performing TAG reconfiguration, thereby using the old TA value to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal service.
- FIG. 10 is a specific flowchart of a method for avoiding uplink interference after re-allocation of time advance group according to an embodiment of the present invention.
- Step 1001 For the secondary serving cell, after the RRC layer of the terminal completes the TAG reconfiguration of the secondary serving cell, the TAG index (TAG index) of the TAG to which the secondary serving cell belongs and the TAG The Time Advance Timer (TAT) used is notified to the Medium Access Control Protocol layer (MAC layer).
- TAG index TAG index
- TAG index Time Advance Timer
- MAC layer Medium Access Control Protocol layer
- Step 1002 The RRC layer of the terminal determines whether the serving cell is re-allocated to a new TAG, and one or more TAGs may be maintained in the terminal. If the currently reconfigured TAG is the same as the TAG being maintained by the terminal, the reconfigured TAG is not a new TAG, and the process proceeds to step 1006; otherwise, the reconfigured TAG is a new TAG, and the process proceeds to step 1003.
- Step 1003 The terminal releases the configuration of the Type-0 SRS of the serving cell.
- Step 1004 After receiving the TAG reconfiguration notification of the serving cell from the RRC layer, the MAC layer of the terminal determines whether the serving cell is reconfigured to a new TAG, and one or more of the TAG may be maintained in the terminal. TAG. If the currently reconfigured TAG is the same as a certain TAG being maintained by the terminal, the process proceeds to step 1006, otherwise, the process proceeds to step 1005. If the terminal maintains other TAGs, the corresponding TA value is known, and the terminal can use the TA value for uplink communication without causing interference to other terminals. Step 1005: The terminal cancels the transmission of Type-1 SRS on the serving cell; clears all uplink HARQ buffers corresponding to the serving cell.
- the terminal may adopt one or more of the three processing methods in the foregoing steps 1003 and 1005, which is determined according to which uplink communication exists in the serving cell by the terminal.
- Step 1006 The terminal performs uplink communication normally in the serving cell by using a known TA value.
- FIG. 11 is a structural diagram of an uplink interference device after avoiding time advance group reconfiguration according to an embodiment of the present invention.
- the TAG reconfiguration unit 1101, the judging unit 1102, and the executing unit 1103 are included.
- the TAG reconfiguration unit 1101 is configured to reconfigure a TAG to which the secondary serving cell belongs.
- the determining unit 1102 is configured to determine whether the reconfigured TAG is a new TAG, and if yes, notify the executing unit 1103.
- the executing unit 1103 is configured to stop the Type-0 SRS transmission of the terminal on the secondary serving cell according to the notification sent by the determining unit 1102, and/or stop the uplink non-location of the terminal on the secondary serving cell. Adaptive retransmission.
- the executing unit 1103 is further configured to cancel the Type-1 SRS transmission of the terminal on the secondary service cell according to the notification sent by the determining unit 1102.
- the apparatus further includes a notifying unit 1104, and when the terminal receives the TA value of the new TAG, that is, for example, the time point T2 in FIG. 2, the execution unit 1103 is notified. At this time, the executing unit 1103 may restart the transmission of the Type-0 SRS of the terminal on the serving cell, and/or restart the uplink non-adaptive retransmission of the terminal on the serving cell.
- the embodiment of the device of the present invention can prevent the terminal from updating the TA value after performing TAG reconfiguration, thereby using the old TA value to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal.
- FIG. 12 is a structural diagram of an uplink interference device after avoiding time advance group reconfiguration according to an embodiment of the present invention.
- the TAG reconfiguration unit 1201, the judging unit 1202, and the executing unit 1203 are included.
- the TAG reconfiguration unit 1201 is configured to reconfigure the TAG to which the secondary serving cell belongs.
- the determining unit 1202 is configured to determine whether the TAG after the reconfiguration is a new TAG, and if yes, notify the executing unit 1203.
- the executing unit 1203 is configured to release the Type-0 SRS configuration of the terminal on the secondary serving cell according to the notification sent by the determining unit 1202, and/or stop the uplink of the terminal on the secondary serving cell. Non-adaptive retransmission.
- the executing unit 1203 is further configured to cancel, according to the notification sent by the determining unit 1202, that the terminal is small in the service. Type-1 SRS transmission on the zone.
- the apparatus further includes a notification unit 1204, when the terminal receives After the TA value of the new TAG, that is, for example, the time point T2 in FIG. 2, the execution unit 1203 is notified. At this time, the execution unit 1203 can also restart the uplink non-adaptive retransmission on the serving cell.
- the embodiment of the device of the present invention can prevent the terminal from updating the threshold after the TAG reconfiguration, so that the old TA value is used to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal.
- FIG. 13 is a structural diagram of an uplink interference device after avoiding time advance quantity group reconfiguration according to an embodiment of the present invention.
- the TAG reconfiguration unit 1301, the judging unit 1302, and the executing unit 1303 are included.
- the TAG reconfiguration unit 1301 is configured to reconfigure the TAG to which the secondary serving cell belongs.
- the determining unit 1302 is configured to determine whether the reconfigured TAG is a new TAG, and if yes, notify the executing unit 1303.
- the executing unit 1303 is configured to stop the Type-0 SRS transmission of the terminal in the secondary serving cell according to the notification sent by the determining unit 1302, and/or clear all uplinks corresponding to the secondary serving cell of the terminal.
- the executing unit 1303 is further configured to cancel the Type-1 SRS transmission of the terminal on the secondary service cell according to the notification sent by the determining unit 1302.
- the apparatus further includes a notifying unit 1304, and when the terminal receives the TA value of the new TAG, that is, for example, the time point T2 in FIG. 2, the execution unit 1303 is notified. At this time, the execution unit 1303 can also restart the transmission of the Type-0 SRS on the serving cell.
- the embodiment of the device of the present invention can prevent the terminal from updating the TA value after performing TAG reconfiguration, thereby using the old TA value to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal.
- FIG. 14 is a structural diagram of an uplink interference device after avoiding time advance group reconfiguration according to an embodiment of the present invention.
- the TAG reconfiguration unit 1401, the determining unit 1402, and the executing unit 1403 are included.
- the TAG reconfiguration unit 1401 is configured to reconfigure the TAG to which the secondary serving cell belongs.
- the determining unit 1402 is configured to determine whether the reconfigured TAG is a new TAG, and if yes, notify the execution order Yuan 1403.
- the executing unit 1403 is configured to release the Type-0 SRS configuration of the secondary serving cell of the terminal according to the notification sent by the determining unit 1302, and/or clear all uplink HARQs corresponding to the secondary serving cell of the terminal. Buffer.
- the executing unit 1403 is further configured to cancel the Type-1 SRS transmission of the terminal on the secondary service cell according to the notification sent by the determining unit 1402.
- the embodiment of the device of the present invention can prevent the terminal from updating the TA value after performing TAG reconfiguration, thereby using the old TA value to communicate with the access point in the new TAG, causing interference to other terminals, especially for the terminal.
- the above apparatus and method of the present invention may be implemented by hardware, or may be implemented by hardware in combination with software.
- the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
- Logic components such as field programmable logic components, microprocessors, processors used in computers, and the like.
- the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201180073234.3A CN103797872B (zh) | 2011-12-31 | 2011-12-31 | 避免时间提前量组重配后上行干扰的方法及装置 |
| EP11878608.6A EP2800431A4 (en) | 2011-12-31 | 2011-12-31 | METHOD AND DEVICE FOR AVOIDING UPWARD INTERFERENCE AFTER THE RECONFIGURATION OF A TIME SHIFT GROUP |
| PCT/CN2011/085125 WO2013097212A1 (zh) | 2011-12-31 | 2011-12-31 | 避免时间提前量组重配后上行干扰的方法及装置 |
| JP2014549292A JP5862796B2 (ja) | 2011-12-31 | 2011-12-31 | Tagの再設定後のアップリンク干渉を回避する方法及び装置 |
| KR1020147019141A KR101600219B1 (ko) | 2011-12-31 | 2011-12-31 | Tag 재구성의 경우에 업링크 간섭 회피를 위한 방법 및 장치 |
| US14/307,814 US9408228B2 (en) | 2011-12-31 | 2014-06-18 | Method and apparatus for uplink interference avoidance in case of timing advance group reconfiguration |
| US15/195,463 US9693331B2 (en) | 2011-12-31 | 2016-06-28 | Method and apparatus for uplink interference avoidance in case of timing advance group reconfiguration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/085125 WO2013097212A1 (zh) | 2011-12-31 | 2011-12-31 | 避免时间提前量组重配后上行干扰的方法及装置 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US14/307,814 Continuation US9408228B2 (en) | 2011-12-31 | 2014-06-18 | Method and apparatus for uplink interference avoidance in case of timing advance group reconfiguration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013097212A1 true WO2013097212A1 (zh) | 2013-07-04 |
Family
ID=48696269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2011/085125 Ceased WO2013097212A1 (zh) | 2011-12-31 | 2011-12-31 | 避免时间提前量组重配后上行干扰的方法及装置 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US9408228B2 (zh) |
| EP (1) | EP2800431A4 (zh) |
| JP (1) | JP5862796B2 (zh) |
| KR (1) | KR101600219B1 (zh) |
| CN (1) | CN103797872B (zh) |
| WO (1) | WO2013097212A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021031882A1 (zh) * | 2019-08-16 | 2021-02-25 | 索尼公司 | 电子设备、无线通信方法和计算机可读存储介质 |
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| KR102092579B1 (ko) | 2011-08-22 | 2020-03-24 | 삼성전자 주식회사 | 이동통신 시스템에서 복수 개의 주파수 밴드 지원 방법 및 장치 |
| KR101885540B1 (ko) * | 2012-03-23 | 2018-09-11 | 주식회사 골드피크이노베이션즈 | 다중 요소 반송파 시스템에서 상향링크 동기화 장치 및 방법 |
| US9806873B2 (en) | 2012-05-09 | 2017-10-31 | Samsung Electronics Co., Ltd. | Method and apparatus for controlling discontinuous reception in mobile communication system |
| US10015757B2 (en) | 2015-09-14 | 2018-07-03 | Ofinno Technologies, Llc | Uplink timing advance configuration of a wireless device and base station |
| KR102647787B1 (ko) * | 2017-08-12 | 2024-03-15 | 주식회사 윌러스표준기술연구소 | 비면허 대역에서의 채널 액세스 방법, 장치 및 시스템 |
| CN112788532A (zh) * | 2019-11-07 | 2021-05-11 | 索尼公司 | 电子设备、用户设备、无线通信方法和存储介质 |
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| CN102291837A (zh) * | 2011-08-12 | 2011-12-21 | 电信科学技术研究院 | 一种周期性srs的处理方法和设备 |
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| JP5153395B2 (ja) * | 2008-03-17 | 2013-02-27 | 株式会社日立製作所 | セルラ無線通信システムの基地局および移動局 |
| CN102131283B (zh) * | 2008-06-02 | 2015-04-15 | 富士通株式会社 | 定时调节方法、移动站、基站以及移动通信系统 |
| KR101706949B1 (ko) * | 2009-08-18 | 2017-02-15 | 엘지전자 주식회사 | 반송파 집성 시스템에서 상향링크 측정을 위한 장치 및 방법 |
| HUE031543T2 (en) | 2009-09-15 | 2017-07-28 | Huawei Tech Co Ltd | Upload Direction Sync Processing Process, User Device, and Base Station |
| KR101818693B1 (ko) * | 2009-11-19 | 2018-01-16 | 인터디지탈 패튼 홀딩스, 인크 | 다중-반송파 시스템에서의 요소 반송파 활성화/비활성화 |
| JP5702806B2 (ja) * | 2010-01-08 | 2015-04-15 | インターデイジタル パテント ホールディングス インコーポレイテッド | 複数のアップリンクキャリアとのタイムアライメントの維持 |
| US9084195B2 (en) * | 2010-04-01 | 2015-07-14 | Nokia Technologies Oy | Multiple timing advance and carrier aggregation |
| KR20110122037A (ko) * | 2010-05-03 | 2011-11-09 | 주식회사 팬택 | 사운딩 기준 신호의 비주기적 송신 방법 및 장치 |
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- 2011-12-31 CN CN201180073234.3A patent/CN103797872B/zh not_active Expired - Fee Related
- 2011-12-31 JP JP2014549292A patent/JP5862796B2/ja not_active Expired - Fee Related
- 2011-12-31 KR KR1020147019141A patent/KR101600219B1/ko not_active Expired - Fee Related
- 2011-12-31 EP EP11878608.6A patent/EP2800431A4/en not_active Withdrawn
- 2011-12-31 WO PCT/CN2011/085125 patent/WO2013097212A1/zh not_active Ceased
-
2014
- 2014-06-18 US US14/307,814 patent/US9408228B2/en not_active Expired - Fee Related
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2016
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| CN102291837A (zh) * | 2011-08-12 | 2011-12-21 | 电信科学技术研究院 | 一种周期性srs的处理方法和设备 |
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| WO2021031882A1 (zh) * | 2019-08-16 | 2021-02-25 | 索尼公司 | 电子设备、无线通信方法和计算机可读存储介质 |
| US12238666B2 (en) | 2019-08-16 | 2025-02-25 | Sony Group Corporation | Electronic device, wireless communication method, and computer-readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| KR101600219B1 (ko) | 2016-03-14 |
| US20160309438A1 (en) | 2016-10-20 |
| US20140301317A1 (en) | 2014-10-09 |
| EP2800431A4 (en) | 2015-12-16 |
| US9408228B2 (en) | 2016-08-02 |
| US9693331B2 (en) | 2017-06-27 |
| JP5862796B2 (ja) | 2016-02-16 |
| KR20140101856A (ko) | 2014-08-20 |
| EP2800431A1 (en) | 2014-11-05 |
| CN103797872B (zh) | 2017-06-16 |
| JP2015506609A (ja) | 2015-03-02 |
| CN103797872A (zh) | 2014-05-14 |
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