CN102711187B - A kind of method and device controlling the state of activation of cell portion in super cell - Google Patents
A kind of method and device controlling the state of activation of cell portion in super cell Download PDFInfo
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Abstract
The invention discloses a kind of method controlling the state of activation of cell portion (CP) in super cell, comprising: when receiving Article 1 message (MSG1) that subscriber equipment (UE) is sent in initial random access procedure, determining according to the received power of this MSG1 detected in each CP the CP being in state of activation that this UE is corresponding; When receive Sounding Reference Signal (SRS) that UE sends or receive UE physically row shared channel (PUSCH) send signal time, adjust the CP being in state of activation corresponding to this UE according to the received power of signal on SRS or PUSCH detected in each CP.The present invention also also discloses a kind of device controlling the state of activation of CP in super cell, adopts the present invention when providing service for the UE in air route, to make a part of CP in super cell be in state of activation, thus saves system resource.
Description
Technical field
The present invention relates to the cell management technology in moving communicating field, particularly relate to a kind of method and the device that control the state of activation of cell portion (CP, Cell Portion) in super cell.
Background technology
When flying in aircraft aloft course line, user's communication needs to use satellite communication, but, the finite capacity of satellite communication and price is higher.Therefore, current proposition uses land mobile communication system to cover the imagination of air route, for providing service for the subscriber equipment (UE, User Equipment) in aloft airline operation, so, just can to providing larger message capacity and lower price.To use land mobile communication system to cover air route, need to overcome the problem that minizone that the high-speed flight due to aircraft brings switches fast, the super cell technology therefore using switch speed fast is the most suitable.Above-mentioned super cell be region that multiple independently physical areas are covered as a super cell, be equivalent to the transceiver/antenna in original physical community to become distributed transceiver/antenna in super cell; Wherein, described multiple independently physical area is called as the CP in super cell.Multiple CP shares mark (Cell ID), major-minor synchronizing signal, the cell reference signals (CRS of super cell, Cell Reference Signal)/demodulated reference signal (DMRS, De Modulation Reference Signal) information such as/Sounding Reference Signal (SRS, Sounding ReferenceSignal) sequence.Thus, by use super cell can by aircraft aloft course line high-speed mobile time minizone switch transition be the scheduling problem between the CP of super cell inside, the switching problem that the mobility reducing the UE of air route high speed movement is brought.
Above-mentioned use super cell technology covers in the method for air route, and when UE is in super cell, in this super cell, all CP are state of activation; Described state of activation is: the upward signal that the CP that eNB demodulation is in state of activation receives, and sends downlink business at the CP being in state of activation.But the upward signal power from this UE that in same super cell, each CP receives is different, the upward signal power from this UE that some CP receives is comparatively large, and other are then less.Wherein, if the upward signal power of the UE of CP reception is comparatively large, then illustrate that the downstream signal power that UE receives from this CP is also comparatively large, therefore, this CP can produce the performance of UE to be affected largely.In addition, the route of air route is comparatively fixing, and each UE in aircraft only needs to use the strongest CP of the one or more signals in super cell can realize call.Therefore, if activate all CP in super cell in real time, then there will be the performance impact of some CP to UE less, be but in the situation of state of activation in real time, so can cause the waste of system resource.
Visible, at present when providing service for the UE in air route, because CP all in super cell are all in state of activation, cause the waste of system resource.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method and the device that control the state of activation of CP in super cell, can, when providing service for the UE in air route, make a part of CP in super cell be in state of activation, thus save system resource.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of method controlling the state of activation of CP in super cell, the method comprises:
When receiving Article 1 message (MSG1) that UE sends in initial random access procedure, determine according to the received power of this MSG1 detected in each CP the CP being in state of activation that this UE is corresponding;
When receiving SRS that UE sends or receiving UE row shared channel (PUSCH physically, PhysicalUplink Shared Channel) send signal time, adjust the CP being in state of activation corresponding to this UE according to the received power of signal on SRS or PUSCH detected in each CP.
In such scheme, described determine this UE corresponding be in the CP of state of activation before, the method also comprises: calculate the mean receiving power to this MSG1 on single CP according to the received power of this MSG1 detected in each CP.
In such scheme, describedly determine the CP being in state of activation that this UE is corresponding, comprise: judge whether the received power of this MSG1 detected in each CP of self-management is not less than this UE mean receiving power to this MSG1 on single CP one by one, if, then for UE activates this CP and added to by this CP in CP Active Set corresponding to UE, otherwise, not for UE activates this CP.
In such scheme, the received power of the signal on described SRS or PUSCH according to detecting in each CP adjusts the CP being in state of activation corresponding to this UE, comprise: detect in each CP SRS or the received power to the signal on PUSCH, the mean receiving power of this UE in each CP on single resource block (RB, Resources Block) is calculated according to this received power;
The mean receiving power on single RB is utilized to calculate the reference received power smooth value of this UE on each CP;
On each CP, the CP being in state of activation corresponding to this UE is adjusted with reference to received power smooth value according to this UE.
In such scheme, describedly the mean receiving power on single RB is utilized to calculate the reference received power smooth value of this UE on each CP, comprise: find out the maximum of this UE in the received power of each CP, utilize the mean receiving power on the single RB on each CP to go out the reference received power of this UE at each CP divided by the maximum value calculation in the received power of each CP above-mentioned one by one;
The reference received power recycling each CP calculates this UE on each CP with reference to received power smooth value.
In such scheme, describedly on each CP, adjust be in state of activation CP corresponding to this UE with reference to received power smooth value according to this UE, comprise: judge whether UE is less than preset activation thresholding at the reference received power smooth value of each CP one by one, if be less than, then not for UE activates this CP, otherwise, activate this CP for UE and this CP added in CP Active Set corresponding to UE.
Present invention also offers a kind of device controlling the state of activation of CP in super cell, this device comprises: administration module and detection module; Wherein,
Administration module, for when receiving the Article 1 message MSG1 that UE sends in initial random access procedure, notice detection module detects the received power of this MSG1 in each CP, and the received power sending this MSG1 detected in each CP according to detection module determines the CP being in state of activation that this UE is corresponding; And when receiving SRS that UE sends or receiving UE at the signal that PUSCH sends, notice detection module detects the received power of signal on SRS or PUSCH in each CP, adjusts the CP being in state of activation corresponding to this UE according to the received power of the signal on SRS or PUSCH detected in each CP that detection module is sent;
Detection module, after the notice for the received power of this MSG1 in each CP of detection that receiving management module is sent, sends to administration module by the received power of the signal on SRS or PUSCH detected in each CP; And after the notice of the received power of signal in each CP of detection of sending of receiving management module on SRS or PUSCH, the received power of the signal on SRS or PUSCH detected in each CP is sent to administration module.
In such scheme, described device also comprises: computing module, for the received power of this MSG1 detected in each CP of sending according to administration module, calculate the mean receiving power to this MSG1 on single CP, by single for this calculating CP, administration module is sent to the mean receiving power of this MSG1;
Accordingly, described administration module, also for sending the received power of this MSG1 detected in each CP to computing module, receives this UE of sending of computing module on single CP to the mean receiving power of this MSG1.
In such scheme, described administration module, specifically for judging whether the received power of this MSG1 detected in each CP is not less than this UE mean receiving power to this MSG1 on single CP one by one, if, then for UE activates this CP and added to by this CP in CP Active Set corresponding to UE, otherwise, not for UE activates this CP.
In such scheme, described detection module, also for sending to administration module by what detect in each CP detected to SRS or to the received power of the signal on PUSCH;
Accordingly, described administration module, also SRS or computing module is sent to the received power of the signal on PUSCH in each CP that detection module is sent, mean receiving power on the single RB utilizing computing module to send calculates the reference received power smooth value of this UE on each CP, adjusts the CP being in state of activation corresponding to this UE according to this UE on each CP with reference to received power smooth value;
Described computing module, the received power also for sending according to receiving management module calculates the mean receiving power of this UE in each CP on single resource block RB, and the mean receiving power on single RB is issued administration module.
In such scheme, described computing module, specifically for finding out the maximum of this UE in the received power of each CP, utilize the mean receiving power on the single RB on each CP to go out the reference received power of this UE at each CP divided by the maximum value calculation in the received power of each CP above-mentioned one by one, the reference received power recycling each CP calculates this UE on each CP with reference to received power smooth value.
In such scheme, described administration module, specifically for judging whether the reference received power smooth value of UE at each CP is less than preset activation thresholding one by one, if be less than, then not for UE activates this CP, otherwise, activate this CP for UE and this CP added in CP Active Set corresponding to UE.
The method of the state of activation of CP and device in control super cell provided by the present invention, can when UE be in initial random access state, the CP being in state of activation that this UE is corresponding is determined according to the received power of the Article 1 message (MSG1) detected in each CP, and UE and system reach synchronous after, the CP being in state of activation corresponding to this UE is adjusted to SRS or to the received power of the signal that PUSCH sends according to what detect in each CP, so, can determine according to the received power of each CP to the signal of UE in real time and adjust the CP this UE being needed to activation, thus when providing service for the UE in air route, the a part of CP in super cell is made to be in state of activation, thus saving system resource.
Accompanying drawing explanation
Fig. 1 is the method flow schematic diagram that the present invention controls the state of activation of CP in super cell;
Fig. 2 is the device composition structural representation that the present invention controls the state of activation of CP in super cell.
Embodiment
Basic thought of the present invention is: when receiving the MSG1 that UE sends in initial random access procedure, determines according to the received power of this MSG1 detected in each CP the CP being in state of activation that this UE is corresponding; When receiving SRS that UE sends or receiving UE at the signal that PUSCH sends, adjust the CP being in state of activation corresponding to this UE according to what detect in each CP to SRS or to the received power of the signal that PUSCH sends.
Below in conjunction with drawings and the specific embodiments, the present invention is further described in more detail.
A kind of method controlling the state of activation of CP in super cell provided by the invention, as shown in Figure 1, comprises the following steps:
Step 101: evolved base station (eNB, evolved Node B) judges whether to receive the MSG1 that any one UE sends in initial random access procedure, if receive, then performs step 102; Otherwise, perform step 105.
Concrete, eNB detects the MSG1 whether receiving any one UE and send in initial random access procedure in real time, if receive, then check whether the super cell of self-management is single CP, if so, then end process flow process; If not, then perform step 102; If confiscate, then perform step 105.
Here, MSG1 in described random access procedure be specify in prior art when UE select suitable community prepare resident time, MSG1 in the initial random access procedure of initiating, here do not repeat, wherein, described MSG1, according to the regulation of prior art, comprising: the parameters such as configuration index, frequency location, cyclic shift, targeting sequencing, do not repeat here.
Step 102:eNB calculates the mean receiving power to this MSG1 on single CP according to the received power of this MSG1 detected in each CP.
Here, the received power of described this MSG1 detected in each CP of self-management can detect this UE received power corresponding on each CP for eNB according to the targeting sequencing in MSG1, and specific implementation is prior art, does not repeat here.
Step 103:eNB determines to the mean receiving power of this MSG1 the CP being in state of activation that UE that this sends MSG1 is corresponding according on single CP.
Here, the activation CP that the described UE determining that this sends MSG1 is corresponding is: eNB judges the received power of this MSG1 detected in each CP of self-management one by one, whether be not less than the mean receiving power to this MSG1 on single CP, if, then for UE activates this CP and added to by this CP in CP Active Set corresponding to UE, otherwise, not for UE activates this CP;
Wherein, described CP Active Set is: the set be made up of the cell ID of CP, with the mark being designated this CP Active Set of UE; The mark of described UE can be the International Mobile Equipment Identity code (IMEI, International Mobile Equipment Identity) of this UE; Described CP Active Set corresponding to UE that added to by this CP is be recorded to by the cell ID of CP to be designated in the CP Active Set of mark with the UE of correspondence.
Step 104:eNB is in the activation CP that UE is corresponding, and the UE to correspondence issues the Article 2 message (MSG2) in initial random access procedure, returns step 101;
Here, described MSG2 be conventionally specify in initial random access procedure, the message issued to UE by eNB, can comprise the information such as time adjustment information and initial uplink Resourse Distribute for uplink synchronous, not repeat here.
After above-mentioned steps 104 completes, UE conventionally performs the flow process of follow-up Stochastic accessing according to the MSG2 received, be linked into super cell, do not repeat here.
Step 105:eNB judges whether to receive SRS that any one UE sends or receives the signal that UE sends on PUSCH, if received, then performs step 106; Otherwise, return step 101.
Here, the SRS that described UE sends or the signal sent on PUSCH be specify in prior art when UE and the system that will access complete synchronous after the signal that sends, do not repeat here; Wherein, described SRS can for send as required, and also can be periodically send, particular content and send mode be prior art, do not repeat here.
Step 106:eNB detects to SRS or the received power to the signal that PUSCH sends in each CP, calculates the mean receiving power of this UE in each CP on single RB according to received power.
Here, detect that what detect in each CP of self-management is prior art to SRS or to the received power of the signal that PUSCH sends, and does not repeat here described in.Described to calculate the mean receiving power of this UE in each CP on single RB according to received power be prior art, do not repeat here.
Step 107:eNB utilizes the mean receiving power on single RB to calculate the reference received power smooth value of this UE on each CP.
Concrete, first eNB finds out the maximum of this UE in the received power of each CP, utilizes the mean receiving power on the single RB on each CP to go out the reference received power of this UE at each CP divided by the maximum value calculation in the received power of each CP above-mentioned one by one; The reference received power recycling each CP calculates this UE on each CP with reference to received power smooth value;
Here, this UE of described calculating on each CP with reference to received power smooth value for calculate according to following formula:
Step 108:eNB adjusts the CP that be in state of activation corresponding to this UE with reference to received power smooth value according to this UE on each CP, returns step 101.
Be specially: eNB judges whether UE is less than preset activation thresholding at the reference received power smooth value of each CP one by one, if be less than, then not for UE activates this CP, otherwise, activate this CP for UE and this CP added in CP Active Set corresponding to UE.
After above-mentioned steps 108 completes, eNB is by the CP in CP Active Set and this UE proper communication.
The present invention proposes a kind of device controlling the state of activation of CP in super cell, as shown in Figure 2, comprising: administration module 21 and detection module 22; Wherein,
Administration module 21, for when receiving the Article 1 message MSG1 that UE sends in initial random access procedure, notice detection module 22 detects the received power of this MSG1 in each CP, and the received power sending this MSG1 detected in each CP according to detection module 22 determines the CP being in state of activation that this UE is corresponding; And when receiving SRS that UE sends or receiving UE at the signal that PUSCH sends, notice detection module 22 detects the received power of signal on SRS or PUSCH in each CP, adjusts the CP being in state of activation corresponding to this UE according to the received power of the signal on SRS or PUSCH detected in each CP that detection module 22 is sent;
Detection module 22, after the notice for the received power of this MSG1 in each CP of detection that receiving management module 21 is sent, sends to administration module 21 by the received power of the signal on SRS or PUSCH detected in each CP; And after the notice of the received power of signal in each CP of detection of sending of receiving management module 21 on SRS or PUSCH, the received power of the signal on SRS or PUSCH detected in each CP is sent to administration module 21.
Described administration module 21, also for judging whether to receive the MSG1 that any one UE sends in initial random access procedure, if receive, then notify that detection module 22 detects the received power of this MSG1 in each CP, otherwise, judge whether to receive the SRS that any one UE sends or the signal sent on PUSCH; Accordingly, described detection module 22, also for the notice starting the received power detecting MSG1 in each CP that receiving management module 21 is sent.
Described administration module 21, specifically for judging whether to receive the MSG1 that any one UE sends in initial random access procedure, if receive, whether the super cell then judging self-management is single CP, if so, then and end operation, if not, then notify that detection module 22 starts the received power detecting MSG1 in each CP, if confiscate, then judges whether to receive the SRS that any one UE sends or the signal sent on PUSCH.
Described device also comprises: computing module 23, after the received power for this MSG1 in each CP that receiving management module 21 is sent, calculates the mean receiving power of UE on single CP according to this received power; Accordingly, described administration module 21, the received power specifically for this MSG1 detected in each CP of being sent by detection module 22 sends to computing module 23.
Described computing module 23, also for the mean receiving power of UE on single CP is sent to administration module 21; Accordingly, described administration module 21, determines specifically for the mean receiving power of this UE on CP sent according to reception computing module 23 CP being in state of activation that this UE is corresponding.
Described administration module 21, specifically for judging whether the received power that in each CP, MSG1 is corresponding is not less than the mean receiving power of this MSG1 on CP one by one, if so, then for UE activates this CP and added to by this CP in CP Active Set corresponding to UE, otherwise, not for UE activates this CP.
Described administration module 21, during specifically for this CP being added to CP Active Set corresponding to UE, being recorded to the cell ID of CP and being designated in the CP Active Set of mark with the UE of correspondence.
Described administration module 21, also for issuing the MSG2 in initial random access procedure in the activation CP that UE is corresponding to this UE.
Described administration module 21, the SRS that any one UE sends or the signal sent on PUSCH is received specifically for judging whether, if received, then notify that detection module 22 starts to detect in each CP to SRS or the received power to the signal that PUSCH sends, otherwise, continue to judge whether to receive the MSG1 that any one UE sends in initial random access procedure; Accordingly, described detection module 22, also for the notice started to detect to SRS or the received power to the signal that PUSCH sends in each CP that receiving management module 21 is sent.
Described detection module 22, start to detect in each CP to after SRS or the notice to the received power of the signal that PUSCH sends specifically for what receive that administration module 21 sends, obtain SRS or the received power to the signal that PUSCH sends in each CP, SRS in each CP or the received power to the signal that PUSCH sends are sent to administration module 21; Accordingly, described administration module 21, also for SRS in each CP of being sent by detection module 22 or issue computing module 23 to the received power of the signal that PUSCH sends; Described computing module 23, also for after receiving in each CP that administration module 21 sends SRS or the received power to the signal that PUSCH sends, calculates the mean receiving power of this UE in each CP on single RB according to received power.
Described computing module 23, also for utilizing the mean receiving power on single RB to calculate the reference received power smooth value of this UE on each CP.
Described computing module 23, specifically for finding out the maximum of this UE in the received power of each CP, utilize the mean receiving power on the single RB on each CP to go out the reference received power of this UE at each CP divided by the maximum value calculation in the received power of each CP above-mentioned one by one, the reference received power recycling each CP calculates this UE on each CP with reference to received power smooth value;
Wherein, this UE of described calculating reference received power smooth value on each CP
for calculating according to following formula:
Described computing module 23, also for this UE is sent to administration module 21 with reference to received power smooth value on each CP; Accordingly, described administration module 21, this UE also for sending according to reception computing module 23 adjusts the CP being in state of activation corresponding to this UE with reference to received power smooth value on each CP.
Described administration module 21, specifically for judging whether UE is less than preset activation thresholding at the reference received power smooth value of each CP one by one, if be less than, then not for UE activates this CP, otherwise, activate this CP for UE and this CP added in CP Active Set corresponding to UE.
Described administration module 21, also for by the CP in CP Active Set and corresponding UE proper communication.
In addition, when device provided by the invention is used for the covering to air route, airborne special equipment need be installed in aircraft, for carrying out communicating as via node with the eNB in the private network covering air route and amplify the power of UE, realize the communication of UE and eNB.
Said apparatus can be installed in the enb as logic module.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.
Claims (10)
1. control a method for the state of activation of cell portion CP in super cell, it is characterized in that, described method is when providing service for the UE in air route, make a part of CP in super cell be in state of activation, described method comprises:
When receiving the Article 1 message MSG1 that user equipment (UE) is sent in initial random access procedure, determine according to the received power of this MSG1 detected in each CP the CP being in state of activation that this UE is corresponding;
When receive Sounding Reference Signal SRS that UE sends or receive UE physically row shared channel PUSCH send signal time, adjust the CP being in state of activation corresponding to this UE according to the received power of signal on SRS or PUSCH detected in each CP;
On described SRS or PUSCH according to detecting in each CP, the received power of signal adjusts the CP being in state of activation corresponding to this UE, comprise: detect to SRS or the received power to the signal on PUSCH in each CP, calculate the mean receiving power of this UE in each CP on single resource block RB according to this received power; The mean receiving power on single RB is utilized to calculate the reference received power smooth value of this UE on each CP; On each CP, the CP being in state of activation corresponding to this UE is adjusted with reference to received power smooth value according to this UE.
2. method according to claim 1, it is characterized in that, described determine this UE corresponding be in the CP of state of activation before, the method also comprises: calculate the mean receiving power to this MSG1 on single CP according to the received power of this MSG1 detected in each CP.
3. method according to claim 2, it is characterized in that, describedly determine the CP being in state of activation that this UE is corresponding, comprise: judge whether the received power of this MSG1 detected in each CP of self-management is not less than this UE mean receiving power to this MSG1 on single CP one by one, if, then for UE activates this CP and added to by this CP in CP Active Set corresponding to UE, otherwise, not for UE activates this CP.
4. method according to claim 1, it is characterized in that, describedly the mean receiving power on single RB is utilized to calculate the reference received power smooth value of this UE on each CP, comprise: find out the maximum of this UE in the received power of each CP, utilize the mean receiving power on the single RB on each CP to go out the reference received power of this UE at each CP divided by the maximum value calculation in the received power of each CP above-mentioned one by one;
The reference received power recycling each CP calculates this UE on each CP with reference to received power smooth value.
5. method according to claim 1, it is characterized in that, describedly on each CP, adjust be in state of activation CP corresponding to this UE with reference to received power smooth value according to this UE, comprise: judge whether UE is less than preset activation thresholding at the reference received power smooth value of each CP one by one, if be less than, then not for UE activates this CP, otherwise, activate this CP for UE and this CP added in CP Active Set corresponding to UE.
6. one kind controls the device of the state of activation of CP in super cell, it is characterized in that, described device is when providing service for the UE in air route, make a part of CP in super cell be in state of activation, described device comprises: administration module, detection module and computing module; Wherein,
Administration module, for when receiving the Article 1 message MSG1 that UE sends in initial random access procedure, notice detection module detects the received power of this MSG1 in each CP, and the received power sending this MSG1 detected in each CP according to detection module determines the CP being in state of activation that this UE is corresponding; And when receiving SRS that UE sends or receiving UE at the signal that PUSCH sends, notice detection module detects the received power of signal on SRS or PUSCH in each CP, adjusts the CP being in state of activation corresponding to this UE according to the received power of the signal on SRS or PUSCH detected in each CP that detection module is sent; Also SRS or computing module is sent to the received power of the signal on PUSCH in each CP that detection module is sent, mean receiving power on the single RB utilizing computing module to send calculates the reference received power smooth value of this UE on each CP, adjusts the CP being in state of activation corresponding to this UE according to this UE on each CP with reference to received power smooth value;
Detection module, after the notice for the received power of this MSG1 in each CP of detection that receiving management module is sent, sends to administration module by the received power of the signal on SRS or PUSCH detected in each CP; And after the notice of the received power of signal in each CP of detection of sending of receiving management module on SRS or PUSCH, the received power of the signal on SRS or PUSCH detected in each CP is sent to administration module; Also for sending to administration module by what detect in each CP detected to SRS or to the received power of the signal on PUSCH;
Described computing module, the received power for sending according to receiving management module calculates the mean receiving power of this UE in each CP on single resource block RB, and the mean receiving power on single RB is issued administration module.
7. device according to claim 6, it is characterized in that, described computing module, the received power of this MSG1 also for detecting in each CP of sending according to administration module, calculate the mean receiving power to this MSG1 on single CP, by single for this calculating CP, administration module is sent to the mean receiving power of this MSG1;
Accordingly, described administration module, also for sending the received power of this MSG1 detected in each CP to computing module, receives this UE of sending of computing module on single CP to the mean receiving power of this MSG1.
8. device according to claim 7, is characterized in that,
Described administration module, specifically for judging whether the received power of this MSG1 detected in each CP is not less than this UE mean receiving power to this MSG1 on single CP one by one, if, then for UE activates this CP and added to by this CP in CP Active Set corresponding to UE, otherwise, not for UE activates this CP.
9. device according to claim 8, is characterized in that,
Described computing module, specifically for finding out the maximum of this UE in the received power of each CP, utilize the mean receiving power on the single RB on each CP to go out the reference received power of this UE at each CP divided by the maximum value calculation in the received power of each CP above-mentioned one by one, the reference received power recycling each CP calculates this UE on each CP with reference to received power smooth value.
10. device according to claim 9, is characterized in that,
Described administration module, specifically for by judging whether the reference received power smooth value of UE at each CP is less than preset activation thresholding one by one, if be less than, then not for UE activates this CP, otherwise, activate this CP for UE and this CP added in CP Active Set corresponding to UE.
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| CN110769505B (en) * | 2018-07-26 | 2023-04-18 | 维沃移动通信有限公司 | Random access method, terminal and network equipment |
| CN113873665A (en) * | 2020-06-30 | 2021-12-31 | 中兴通讯股份有限公司 | Scheduling method, base station, and computer-readable storage medium |
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| US20100189038A1 (en) * | 2009-01-23 | 2010-07-29 | Runhua Chen | Circuit and method for mapping data symbols and reference signals for coordinated multi-point systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102047723A (en) * | 2008-06-12 | 2011-05-04 | 艾利森电话股份有限公司 | Method and arrangement in a telecommunication system |
| CN101621834A (en) * | 2009-07-23 | 2010-01-06 | 北京航空航天大学 | CoMP downlink dynamic cooperative cluster selection method based on SINR threshold and token |
| CN102026210A (en) * | 2009-09-21 | 2011-04-20 | 鼎桥通信技术有限公司 | Radio resource management methods for cell portion |
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