CN102281557A - Method, device, cascade equipment and base station for controlling uplink flow rate - Google Patents
Method, device, cascade equipment and base station for controlling uplink flow rate Download PDFInfo
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Abstract
The invention discloses a method, device, cascade equipment and base station for controlling an uplink flow rate. The method comprises the following steps of: setting a flow rate control mark in a downlink physical frame when detecting that an uplink data cache quantity of next-level salve equipment is more than a preset congestion threshold quantity; and transmitting the downlink physical frame carrying with the flow rate control mark to all next-level slave equipment so that the next-level slave equipment is facilitated to carry out a flow rate control of uplink transmission of data per se when detecting the downlink frame carrying with the downlink flow rate control mark. According to the method, device and system provided by the invention, communication bandwidth is reasonably allocated to all the slave equipment on a link; and the bandwidth utilization rate of a communication link is increased.
Description
Technical field
The present invention relates to the communications field, relate in particular to a kind of uplink traffic control method, device, cascade device and base station.
Background technology
In Wireless Telecom Equipment, the serially concatenated bus is widely used.General, by serialization and de-serialization (SerDes, Serialize and Deserialize) function, form serially concatenated bus structures as shown in Figure 1 between main equipment and the slave unit.
At Wideband Code Division Multiple Access (WCDMA) (WCDMA, Wideband Code Division Multiple Access) in the system, the base station comprises radio equipment controller (REC, Radio Equipment Controller) and wireless device (RE, Radio Equipment), the corresponding main equipment of radio equipment controller wherein, the corresponding slave unit of wireless device (RE, Radio Equipment).A kind of flow control methods commonly used is in the WCDMA system: for each RE is provided with fixing basic communication bandwidth, each RE carries out the flow control that its data sends according to this basic communication bandwidth.
In the existing flow control methods, because for each RE is provided with fixing basic communication bandwidth, then for the bigger slave unit of the data volume of required transmission, should fixing basic communication bandwidth can't satisfy the demand of slave unit for bandwidth, and for the less RE of the data volume of required transmission, though data transmission efficiency is guaranteed, caused the serious waste of communication bandwidth; Therefore, for the overall bandwidth of system communication link, existing flow control plan causes the bandwidth waste of communication link serious, and link utilization is low.
Summary of the invention
The embodiment of the invention provides a kind of uplink traffic control method, device, cascade device and base station, can rationally be each slave unit allocate communications bandwidth on the link, improves the bandwidth availability ratio of communication link.
For this reason, the embodiment of the invention adopts following technical scheme:
The embodiment of the invention provides a kind of uplink traffic control method, comprising:
The upstream data buffer memory that detects the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Will carry the downstream physical frame of flow control mark send to each slave unit of subordinate so that the slave unit of cascade device at the corresponding levels subordinate when detecting described downstream physical frame of carrying the flow control mark, carries out the flow control of the up transmission of its data.
The embodiment of the invention provides a kind of uplink traffic control method, comprising:
Receive the downstream physical frame that higher level's cascade device is sent;
Detect and be provided with the flow control mark in the described downstream physical frame, and detect when carrying out the data uplink transmission, carry out the flow control that data uplink sends according to default flow control algorithm.
The embodiment of the invention also provides a kind of uplink traffic control device, comprising:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
The embodiment of the invention also provides a kind of uplink traffic control device, comprising:
Receiving element is used to receive the downstream physical frame that higher level's cascade device is sent;
Control unit is used for detecting described downstream physical frame and is provided with the flow control mark, and detects when carrying out the data uplink transmission, carries out the flow control that data uplink sends according to default flow control algorithm.
The embodiment of the invention also provides a kind of cascade device, comprising:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
The embodiment of the invention also provides a kind of base station, comprising: radio equipment controller REC and wireless device RE; Wherein,
REC comprises:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data;
RE comprises:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
Technique effect for technique scheme is analyzed as follows:
In the embodiment of the invention, the upstream data buffer memory that detects the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame; Will carry the downstream physical frame of flow control mark send to each slave unit of subordinate so that the slave unit of subordinate when detecting described downstream physical frame of carrying the flow control mark, carries out the flow control of the up transmission of its data; Thereby can send demand according to the current data of slave unit rationally be each slave unit allocate communications bandwidth on the link, the utilance of raising communication link.
Description of drawings
Fig. 1 is prior art serially concatenated bus structures schematic diagrames;
Fig. 2 is a kind of uplink traffic control method of embodiment of the invention schematic flow sheet;
Fig. 3 is the another kind of uplink traffic control method of an embodiment of the invention schematic flow sheet;
Fig. 4 is another uplink traffic control method schematic flow sheet of the embodiment of the invention;
Fig. 5 is a kind of uplink traffic control device of embodiment of the invention structural representation;
Fig. 6 is the another kind of uplink traffic control device of an embodiment of the invention structural representation.
Embodiment
As shown in Figure 1, in the serially concatenated bus run, mainly comprise three logical channels, be respectively: user data channel, control data passage and synchronizing information passage.Main equipment and slave unit are shared these three logical channels.Wherein, pass through user data channel transmission user face data between main equipment and the slave unit; Main equipment passes through the relevant address information of control data path setting control data with the control slave unit, and slave unit passes through this control data passage to the main equipment data feedback control, and described control data generally comprises physical layer control information and high-rise control information; The synchronizing information passage is used for carrying out between main equipment and the slave unit transmission of synchronizing information.The following embodiment of the invention is then carried out the flow control of chain of command by the control data passage.
Below, be described with reference to the accompanying drawings the realization of embodiment of the invention uplink traffic control method, device, cascade device and base station.
Fig. 2 is an embodiment of the invention uplink traffic control method schematic flow sheet, and this method goes in each slave unit and main equipment except that the afterbody slave unit, and as shown in Figure 2, this method comprises:
Step 201: the upstream data buffer memory that detects the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Step 202: the downstream physical frame that will carry the flow control mark sends to each slave unit of subordinate, so that the slave unit of subordinate when detecting described downstream physical frame of carrying the flow control mark, carries out the uplink traffic control that its data sends.
In the flow control methods shown in Figure 2, whether the uplink traffic of main equipment and each slave unit detection subordinate slave unit is congested, when generation is congested, transmission carries the downstream physical frame of flow control mark each slave unit to subordinate, carry out the uplink traffic control that its data sends by each slave unit, thereby under the situation that guarantees the communication link bandwidth utilance, main equipment and each slave unit have been realized the quick flow control of chain of command data.
Corresponding with Fig. 2, the embodiment of the invention also provides another kind of uplink traffic control method, and this method goes in each slave unit; As shown in Figure 3, comprising:
Step 301: receive the downstream physical frame that higher level's cascade device is sent;
Cascade device in the embodiment of the invention comprises: main equipment and slave unit.
Step 302: detect and be provided with the flow control mark in the described downstream physical frame, and detect when carrying out the data uplink transmission, carry out the flow control that data uplink sends according to default flow control algorithm, in detecting downstream physical frame, do not carry described flow control mark.
Wherein, described default flow control algorithm can for: stopping to send, reduce transmission rate to the pre-set ratio of preset value or former speed etc., is 1/2 etc. of former speed as reducing transmission rate, can independently set in actual applications, does not limit here.
In the flow control methods shown in Figure 3, when the slave unit of subordinate receives the downstream physical frame that higher level's cascade device issues, detect and wherein whether be provided with the flow control mark, and when detecting the flow control mark, carry out flow control, thereby assist higher level's cascade device to realize flow control.
On the basis of Fig. 2 and 3, by Fig. 4 embodiment of the invention uplink traffic control method is described in more detail, as shown in Figure 4, this method comprises:
Step 401: whether main equipment and slave unit at different levels detect the upstream data buffer memory of next stage slave unit respectively greater than default congestion threshold, if, execution in step 402; Otherwise, execution in step 403.
Wherein, can comprise two buffers (Buffer) in each slave unit, Buffer A is used for the upstream data of the required transmission of buffer memory slave unit self; Buffer B is used for the upstream data of buffer memory next stage slave unit.
Therefore, can from Buffer B, obtain the upstream data buffer memory of described next stage slave unit in this step.
Step 402: the flow control mark is set in downstream physical frame, the downstream physical frame of carrying the flow control mark is sent to each slave unit of this cascade device subordinate; Execution in step 404.
Wherein, concrete described flow control mark can be set in the control word of downstream physical frame;
For example, in the downstream physical frame as shown in table 1 below, increase " flow control " field in the p-1 subchannel in original downlink physical frame structure, as described flow control mark, whether sign starts flow control.
Table 1
Step 403: cancellation flow control mark in downstream physical frame sends downstream physical frame each slave unit to this cascade device subordinate; Execution in step 404.
Perhaps, the realization of this step also can for: flow control cancellation mark is set in downstream physical frame, and described flow control cancellation mark is used to indicate each slave unit of subordinate to stop flow control for the upstream data of self required transmission;
To detect in corresponding following step 404 and the step 405 and whether carry flow control cancellation mark in the downstream physical frame, and carry out corresponding the processing, not give unnecessary details here according to testing result.
Similar to being provided with of described flow control mark, described flow control cancellation mark also can be realized by the mode that increases field in downstream physical frame, does not give unnecessary details here.
Step 404: each subordinate's slave unit receives downstream physical frame, detects whether carry the flow control mark in the described downstream physical frame, if, execution in step 405; Otherwise, execution in step 406.
Step 405: judge whether self is carrying out the up transmission of data, if, execution in step 407; Otherwise, execution in step 408.
Step 406: judge whether self is carrying out the up transmission of data, if, execution in step 408; Otherwise this branch handling process finishes.
Step 407: carry out the flow control that data uplink sends according to default flow control algorithm, this branch handling process finishes.
Step 408: normally carry out data uplink and send, this branch handling process finishes.
Here, be divided into two kinds of situations in the step 408, a kind of is to have detected before the slave unit to carry the flow control mark in the downstream physical frame, thereby slave unit has carried out the flow control that data uplink sends, then the realization of this step is: cancellation is normally carried out the up transmission of data to the flow control of the up transmission of data; Another kind is not detect before to carry the flow control mark in the downstream physical frame, so slave unit does not carry out the flow control that data send, then being embodied as of step 408: continue normally to carry out the up transmission of data.
In the flow control methods shown in Figure 4, whether main equipment is congested with the uplink traffic that each slave unit detects subordinate's slave unit respectively, when generation is congested, transmission carries the downstream physical frame of flow control mark each slave unit to subordinate, carry out the flow control of the up transmission of its data by each slave unit, thereby under the situation that guarantees the communication link bandwidth utilance, each slave unit has been realized the quick flow control of chain of command data.
In the WCDMA system, the corresponding described main equipment of described REC, the corresponding described slave unit of described RE, and the interface between REC and the RE is common public radio interface (CPRI, a Common Public Radio Interface) interface; Described downstream physical frame can be the downstream physical frame of CPRI interface.Except that described WCDMA system, the uplink traffic control method of the embodiment of the present application can also be applicable in global system for mobile communications (GSM), code division multiple access (CDMA), the 3GPP Long Term Evolution systems such as (LTE), repeat no more here.
Corresponding with above-mentioned embodiment of the invention flow control methods, the embodiment of the invention also provides volume control device and system, respectively shown in Fig. 5～6.
Fig. 5 is a kind of volume control device structural representation of the embodiment of the invention, and this device can be arranged at main equipment, or slave unit, or in main equipment and the slave unit; Wherein, in the afterbody slave unit this device can be set; As shown in Figure 5, this device can comprise:
Transmitting element 520, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the uplink traffic control that its data sends.
The described flow control mark that is provided with in downstream physical frame can comprise: the flow control mark is set in the control word of downstream physical frame.Described downstream physical frame can be the CPRI frame.
Preferably, the described unit further that is provided with is used for: the upstream data buffer memory that detects the next stage slave unit is during less than default congested cancellation threshold value, cancellation flow control mark in the downstream physical frame that sends to subordinate's slave unit;
Described transmitting element can also be used for: the downstream physical frame that will cancel the flow control mark sends to each slave unit of subordinate, so that when each slave unit of subordinate detects described downstream physical frame of not carrying the flow control mark, normally carry out the up transmission of data.
Perhaps, the described unit further that is provided with is used for: the upstream data buffer memory that detects the next stage slave unit is being provided with flow control cancellation mark during less than default congested cancellation threshold value in the downstream physical frame that sends to subordinate's slave unit;
Described transmitting element can also be used for: the downstream physical frame that will carry flow control cancellation mark sends to each slave unit of subordinate, so that when each slave unit of subordinate detects the downstream physical frame of carrying flow control cancellation mark, normally carry out the up transmission of data.
As shown in Figure 6, provide another kind of uplink traffic control device, this device can be arranged in each slave unit, is used for cooperating with device shown in Figure 5, and this device comprises:
Receiving element 610 is used to receive the downstream physical frame that higher level's cascade device is sent;
Wherein, described cascade device can be a slave unit, or main equipment;
Described control unit 620 can also be used for: detect described downstream physical frame the flow control mark is not set, and detect when carrying out the data uplink transmission, normally carry out data uplink and send.Perhaps,
Described control unit 620 can also be used for: detect described downstream physical frame and be provided with flow control cancellation mark, and detect when carrying out the data uplink transmission, normally carry out data uplink and send.
Described default flow control algorithm can for: stopping to send, reduce transmission rate to the pre-set ratio of preset value or former speed etc., is 1/2 etc. of former speed as reducing transmission rate, can independently set in actual applications, does not limit here.
The embodiment of the invention also provides a kind of cascade device of uplink traffic control, and this cascade device can comprise:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
Above-mentioned cascade device can be main equipment or slave unit.
This cascade device can also comprise: receiving element is used to receive the downstream physical frame that higher level's cascade device is sent;
Control unit is used for detecting described downstream physical frame and is provided with the flow control mark, and detects when carrying out the data uplink transmission, carries out the flow control that data uplink sends according to default flow control algorithm.
In actual applications, except the slave unit of the first order and afterbody, each slave unit is all both as subordinate's slave unit of higher level's slave unit, also as higher level's slave unit of subordinate's slave unit, then as subordinate's slave unit of main equipment, main equipment is as higher level's cascade device of first order slave unit for first order slave unit; Therefore, can device shown in Figure 5 be set in each main equipment and slave unit, in addition, device shown in Figure 6 can also be set in each slave unit, thereby realize the flow control of slave unit on the whole communication link.
In addition, the embodiment of the invention also provides a kind of base station, comprising: REC and RE; Wherein,
REC comprises:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data;
RE comprises:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
Preferably, RE can also comprise: receiving element is used to receive the downstream physical frame that higher level's cascade device is sent;
Control unit is used for detecting described downstream physical frame and is provided with the flow control mark, and detects when carrying out the data uplink transmission, carries out the flow control that data uplink sends according to default flow control algorithm.
In above-mentioned volume control device, cascade device and the base station, whether the uplink traffic of main equipment and each slave unit detection subordinate slave unit is congested, when generation is congested, transmission carries the downstream physical frame of flow control mark each slave unit to subordinate, carry out the uplink traffic control that its data sends by each slave unit, thereby under the situation that guarantees the communication link bandwidth utilance, each slave unit has been realized the quick flow control of chain of command data.
One of ordinary skill in the art will appreciate that, the process of the method for realization the foregoing description can be finished by the relevant hardware of program command, described program can be stored in the read/write memory medium, and this program is carried out the corresponding step in the said method when carrying out.Described storage medium can be as ROM/RAM, magnetic disc, CD etc.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (18)
1. a uplink traffic control method is characterized in that, comprising:
The upstream data buffer memory that detects the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Will carry the downstream physical frame of flow control mark send to each slave unit of subordinate so that the slave unit of cascade device at the corresponding levels subordinate when detecting described downstream physical frame of carrying the flow control mark, carries out the flow control of the up transmission of its data.
2. method according to claim 1 is characterized in that, also comprises:
The upstream data buffer memory that detects the next stage slave unit is during less than default congested cancellation threshold value, cancellation flow control mark in the downstream physical frame that sends to subordinate's slave unit, so that when each slave unit of subordinate detects the downstream physical frame of not carrying the flow control mark, normally carry out the up transmission of data; Perhaps,
The upstream data buffer memory that detects the next stage slave unit is during less than default congested cancellation threshold value, flow control cancellation mark is set in the downstream physical frame that sends to subordinate's slave unit, so that when each slave unit of subordinate detects described flow control cancellation mark, normally carry out the up transmission of data.
3. method according to claim 1 and 2 is characterized in that, the described flow control mark that is provided with in downstream physical frame comprises:
The flow control mark is set in the control word of downstream physical frame.
4. method according to claim 3 is characterized in that, described downstream physical frame is the common public radio interface CPRI frame.
5. a uplink traffic control method is characterized in that, comprising:
Receive the downstream physical frame that higher level's cascade device is sent;
Detect and be provided with the flow control mark in the described downstream physical frame, and detect when carrying out the data uplink transmission, carry out the flow control that data uplink sends according to default flow control algorithm.
6. method according to claim 5 is characterized in that, also comprises:
Detect cancellation flow control mark in the described downstream physical frame, and detect when carrying out the data uplink transmission, normally carry out data uplink and send; Perhaps,
Detect and be provided with flow control cancellation mark in the described downstream physical frame, and detect when carrying out the data uplink transmission, normally carry out data uplink and send.
7. according to claim 5 or 6 described methods, it is characterized in that, be provided with the flow control mark in the described downstream physical frame and comprise:
In the control word of downstream physical frame, be provided with described flow control mark.
8. according to claim 5 or 6 described methods, it is characterized in that described flow control algorithm comprises: stop to send or reduce the pre-set ratio of transmission rate to former speed.
9. a uplink traffic control device is characterized in that, comprising:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
10. device according to claim 9, it is characterized in that, the described unit that is provided with also is used for: the upstream data buffer memory that detects the next stage slave unit is during less than default congested cancellation threshold value, cancellation flow control mark in the downstream physical frame that sends to subordinate's slave unit;
Described transmitting element also is used for: the downstream physical frame that will cancel the flow control mark sends to each slave unit of subordinate, so that when each slave unit of subordinate detects described downstream physical frame of not carrying the flow control mark, normally carry out the up transmission of data.
11. device according to claim 9, it is characterized in that, the described unit that is provided with also is used for: the upstream data buffer memory that detects the next stage slave unit is being provided with flow control cancellation mark during less than default congested cancellation threshold value in the downstream physical frame that sends to subordinate's slave unit;
Described transmitting element also is used for: the downstream physical frame that will carry flow control cancellation mark sends to each slave unit of subordinate, so that when each slave unit of subordinate detects the downstream physical frame of carrying flow control cancellation mark, normally carry out the up transmission of data.
12. a uplink traffic control device is characterized in that, comprising:
Receiving element is used to receive the downstream physical frame that higher level's cascade device is sent;
Control unit is used for detecting described downstream physical frame and is provided with the flow control mark, and detects when carrying out the data uplink transmission, carries out the flow control that data uplink sends according to default flow control algorithm.
13. device according to claim 12 is characterized in that, described control unit also is used for: detect described downstream physical frame cancellation flow control mark, and detect when carrying out the data uplink transmission, normally carry out data uplink and send; Perhaps,
Described control unit also is used for: detect described downstream physical frame and be provided with flow control cancellation mark, and detect when carrying out the data uplink transmission, normally carry out data uplink and send.
14. a cascade device is characterized in that, comprising:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
15. cascade device according to claim 14 is characterized in that, also comprises:
Receiving element is used to receive the downstream physical frame that higher level's cascade device is sent;
Control unit is used for detecting described downstream physical frame and is provided with the flow control mark, and detects when carrying out the data uplink transmission, carries out the flow control that data uplink sends according to default flow control algorithm.
16., it is characterized in that described cascade device is radio equipment controller REC or wireless device RE according to claim 14 or 15 described cascade devices.
17. a base station is characterized in that, comprising: radio equipment controller REC and wireless device RE; Wherein,
REC comprises:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data;
RE comprises:
The unit is set, and the upstream data buffer memory that is used to detect the next stage slave unit is provided with the flow control mark during greater than default congestion threshold in downstream physical frame;
Transmitting element, be used for to carry each slave unit transmission of the downstream physical frame of flow control mark to subordinate, so that when the slave unit of cascade device subordinate detects described downstream physical frame of carrying the flow control mark under the transmitting element, carry out the flow control of the up transmission of its data.
18. base station according to claim 17 is characterized in that, described RE also comprises:
Receiving element is used to receive the downstream physical frame that higher level's cascade device is sent;
Control unit is used for detecting described downstream physical frame and is provided with the flow control mark, and detects when carrying out the data uplink transmission, carries out the flow control that data uplink sends according to default flow control algorithm.
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| CN2011101564258A CN102281557A (en) | 2011-06-10 | 2011-06-10 | Method, device, cascade equipment and base station for controlling uplink flow rate |
| PCT/CN2012/076700 WO2012167750A1 (en) | 2011-06-10 | 2012-06-11 | Method, device, cascading equipment and base station for uplink flow control |
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| CN2011101564258A CN102281557A (en) | 2011-06-10 | 2011-06-10 | Method, device, cascade equipment and base station for controlling uplink flow rate |
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| CN102281557A (en) * | 2011-06-10 | 2011-12-14 | 上海华为技术有限公司 | Method, device, cascade equipment and base station for controlling uplink flow rate |
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| US20040196790A1 (en) * | 2003-04-01 | 2004-10-07 | International Business Machines Corporation | Method and system for managing traffic within a data communication network |
| CN1921455A (en) * | 2006-09-12 | 2007-02-28 | 华为技术有限公司 | Serial tandem connection bus up flow control method and node equipment |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012167750A1 (en) * | 2011-06-10 | 2012-12-13 | 华为技术有限公司 | Method, device, cascading equipment and base station for uplink flow control |
| CN102802207A (en) * | 2012-07-09 | 2012-11-28 | 电信科学技术研究院 | Flow control method and device |
| CN102802207B (en) * | 2012-07-09 | 2014-10-22 | 电信科学技术研究院 | Flow control method and device |
| CN105517058A (en) * | 2014-09-29 | 2016-04-20 | 展讯通信（上海）有限公司 | Mobile terminal data transmission control method and mobile terminal data transmission control device |
| CN105517058B (en) * | 2014-09-29 | 2019-03-05 | 展讯通信（上海）有限公司 | Mobile terminal data transmission control method and device |
| WO2018000406A1 (en) * | 2016-07-01 | 2018-01-04 | Intel Corporation | Asymmetric lanes in point-to-point interconnect |
| US10515032B2 (en) | 2016-07-01 | 2019-12-24 | Intel Corporation | Asymmetric transmission (TX) and receive (RX) lanes in a point-to-point interconnect using a peripheral component interconnect express (PCIE) resources in a computer system |
| CN109327402A (en) * | 2017-07-31 | 2019-02-12 | 杭州海康威视数字技术股份有限公司 | Congestion management and device |
| CN109327402B (en) * | 2017-07-31 | 2023-03-14 | 杭州海康威视数字技术股份有限公司 | Congestion management method and device |
| WO2020172802A1 (en) * | 2019-02-26 | 2020-09-03 | 深圳配天智能技术研究院有限公司 | Master-slave device communication system and method |
| CN113039546A (en) * | 2019-02-26 | 2021-06-25 | 深圳配天智能技术研究院有限公司 | Master-slave equipment communication system and method |
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| WO2012167750A1 (en) | 2012-12-13 |
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