WO2013079033A1 - 一种基于流媒体业务提升小区吞吐量的方法和装置 - Google Patents

一种基于流媒体业务提升小区吞吐量的方法和装置 Download PDF

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Publication number
WO2013079033A1
WO2013079033A1 PCT/CN2012/085738 CN2012085738W WO2013079033A1 WO 2013079033 A1 WO2013079033 A1 WO 2013079033A1 CN 2012085738 W CN2012085738 W CN 2012085738W WO 2013079033 A1 WO2013079033 A1 WO 2013079033A1
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Prior art keywords
client
clients
air interface
allocated
value
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PCT/CN2012/085738
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English (en)
French (fr)
Inventor
韦安妮
肖登坤
朱雷
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12854312.1A priority Critical patent/EP2779565B1/en
Publication of WO2013079033A1 publication Critical patent/WO2013079033A1/zh
Priority to US14/291,362 priority patent/US9402260B2/en

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Classifications

    • 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
    • H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/80—Responding to QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
    • H04L65/60—Network streaming of media packets
    • H04L65/75—Media network packet handling
    • H04L65/762—Media network packet handling at the source 

Definitions

  • Streaming media refers to the distribution of multimedia content such as audio and video in real time on the Internet in the form of data streams.
  • the streaming media technology refers to compressing and encoding the entire multimedia file into multiple compressed packets and transmitting them to the client in real time. The user can decompress and play the downloaded compressed packets while downloading the subsequent compressed packages, thereby saving time.
  • the existing HTTP Streaming protocol is to slice a multimedia file into a media slice conforming to a required format by a content preparation unit, and generate description information of each media slice, and then describe the media slice and the media slice.
  • the description information of the media fragment describes the content of the media fragment, the multi-code rate, and the request address construction information of the media fragment.
  • the HTTP Streaming server stores the description information of the media fragment and the media fragment, and correspondingly requests the media fragmentation information from the client.
  • the client's media shard request includes information such as the code rate, resolution, and language of the requested media shard.
  • the code rate of the media fragment requested by the client is dynamically adjusted by the client according to its own bandwidth. If the client is low-bandwidth, the client requests a low-rate media fragment from the HTTP Streaming server. When the user has high bandwidth, the client requests high-rate media fragments from the HTTP Streaming server.
  • the bandwidth resources are relatively unchanged.
  • the HTTP Streaming server can provide different rate media fragments according to different bandwidth resources, and the code rate adaptation between the client and the HTTP Streaming server is relatively simple.
  • the code rate of the media slice is adapted according to the change of the air interface resource.
  • Each client can only see its own link status when measuring its own bandwidth. It adjusts the code rate of the requested media fragment according to its own link status, but cannot reasonably utilize the resources of the entire cell, affecting the entire cell. Throughput.
  • Embodiments of the present invention provide a method and apparatus for improving cell throughput based on a streaming media service, so that resource allocation of a cell in which a client is located is optimized, and throughput of the cell is improved.
  • a method for improving cell throughput based on a streaming media service including:
  • the two clients are allocated pre-adjusted air interface resources, so that the two The client can receive the streaming media content sent by the media server and adjusted the bit rate value.
  • An apparatus for improving cell throughput based on a streaming media service comprising: a pre-adjusting unit, configured to pre-adjust two clients that are performing streaming media services in the same area to the two clients
  • the pre-adjusted air interface resource is configured to pre-adjust the air interface resources of the two clients according to the air interface resource adjustment amount preset by the base station
  • the throughput change value obtaining unit is configured to acquire the two client pre-adjustment air interface resources. The change value of the cell throughput after the said;
  • the adjusting unit is configured to allocate a pre-adjusted air interface resource to the two clients, if the change in the cell throughput of the two clients is greater than a preset resource adjustment threshold.
  • the two clients are enabled to receive the streaming media content of the adjusted rate value sent by the media server.
  • the method and device for improving the cell throughput based on the streaming media service provided by the embodiment of the present invention are used for pre-adjusting the air interface resource of the two clients in the cell to perform the streaming media service, and calculating the change value of the cell throughput after the pre-adjusting the air interface resource Whether the resource adjustment threshold is greater than the resource adjustment threshold is used to confirm whether the base station is worthy of making an air interface resource adjustment to the two clients.
  • the pre-adjusted cell throughput change value is greater than the resource adjustment threshold, the pre-adjusted air interface resource is provided to the client, so that the client can receive the rate adjustment sent by the streaming media server according to the pre-adjusted air interface resource allocated by the base station.
  • the streaming content is increased, thereby increasing the throughput of the cell.
  • FIG. 1 is a flowchart of a method for improving cell throughput based on a streaming media service according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for improving cell throughput based on a streaming media service according to Embodiment 2 of the present invention
  • FIG. 3 is a block diagram of a device for improving cell throughput based on a streaming media service according to Embodiment 3 of the present invention.
  • the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • Embodiment 1 is a block diagram of a device for improving cell throughput based on a streaming media service according to Embodiment 3 of the present invention.
  • An embodiment of the present invention provides a method for improving cell throughput based on a streaming media service. As shown in FIG. 1, the method includes:
  • Pre-adjust the air interface resources allocated to the two clients in the same cell, and the pre-adjusting air interface resources are pre-adjusted according to the air interface resource adjustment amount preset by the base station. Air interface resources of the client.
  • the base station first obtains a list of clients that are performing streaming media services in the cell under the jurisdiction, and then the base station randomly groups all the clients that are performing streaming media services in the managed cell, and then pre-adjusts the two clients in the same group.
  • the pre-adjusted air interface resource can be pre-adjusted according to the channel quality of the two clients in the same group.
  • the base station pre-adjusts the transmission power allocated to the client, but is not limited thereto.
  • the transmit power allocated to the client j with good channel quality is the transmit power allocated to the client i with poor channel quality is ⁇ ⁇
  • P is the transmit power preset by the base station. Adjustment amount.
  • a specific base station may use one or more of the following parameter combinations to determine the channel quality of two clients in the same group, such as the distance between two clients and the base station, the cache consumption speed of each client in the cache of the base station, and RRSI (One or more parameters, such as the size of the Received Signal Strength Indication, the received signal strength indication, and the channel signal to noise ratio of the client, are not limited by the present invention.
  • the cell throughput change value is greater than a preset resource adjustment threshold, and the two clients are allocated pre-adjusted air interface resources, so that the The two clients can receive the streaming media content sent by the media server with the adjusted bit rate value.
  • the client can monitor its own air interface resources in real time, and then determine whether the media service can request streaming media content that is higher than the currently received streaming media content rate value, or request the media server.
  • the currently received streaming media content having a low bit rate value.
  • the base station can also be allocated to the client.
  • the code rate adjustment indication information is directly sent to the client, and is used to notify the client that the code rate value of the requested streaming media content can be adjusted.
  • the method and device for improving the cell throughput based on the streaming media service are used for pre-adjusting the air interface resource of the two clients in the cell to perform the streaming media service, and calculating the change value of the cell throughput after the pre-adjusting the air interface resource Whether the resource adjustment threshold is greater than the resource adjustment threshold is used to confirm whether the base station is worthy of making an air interface resource adjustment to the two clients. If the pre-adjusted cell throughput change value is greater than the resource adjustment threshold, the pre-adjusted air interface resource is provided to the client, so that the client can receive the rate adjustment sent by the streaming media server according to the pre-adjusted air interface resource allocated by the base station. Streaming media content, thereby increasing the throughput of the cell.
  • the embodiment of the present invention provides a method for improving cell throughput based on a streaming media service.
  • the base station adjusts the air interface resource of the client, and the base station adjusts the transmit power allocated to the client, as shown in FIG. 2, which includes:
  • S201 Perform, according to the client channel quality, a pair of clients that are performing streaming media services in the same cell to obtain a pairing client.
  • the specific client pairing can use the following method: respectively calculate the difference between the two channel quality samples of the client before and during the same time interval of each client in the same 'zone', according to The positive and negative values of the difference between the two channel quality samples of each client divide the clients performing the streaming media service in the cell into two groups, and the difference between the two channel quality samples
  • the groups that are positive values are set according to the order of priority from the largest to the smallest, and the groups whose difference between the two channel quality samples are negative are set in the order of priority from the smallest to the largest, and the two are
  • the clients with the same priority in the group are paired in turn, and the clients that are paired are obtained.
  • the client performing the streaming service in the small area reports the channel quality sample value before 200 ms and the current channel quality sample value, and the base station calculates the current channel quality sample value of the client and 200 ms before. Difference between channel indication values
  • the client is divided into two groups of P and Q. 4 set as table
  • Table 1 is the client of the P group
  • Table 2 is the client of the Q group.
  • Table 1 is for the P group client.
  • Table 2 shows the Q group client
  • the P group client sets the priority of the client according to ⁇ ? from large to small, and the ⁇ group includes 11 clients, and the priority of the client is 1, 2, 3 Vietnamese to 11.
  • the Q group client sets the priority of the client from ⁇ ? from small to large, and the Q group includes 10 clients.
  • the priority of the client is 1, 2, 3...10.
  • the clients with the same priority among the two groups in the group and the Q group are paired. If UE2 and UE11 are paired, UE4 and UE13 perform pairing. Then, the base station pre-increases the transmission power allocated to the clients participating in the pairing in the group, and pre-decreases the transmission power of the clients allocated to the group Q.
  • the specific matching method may also be: according to the current channel quality of the client, the client is equally divided into two groups according to the order of the values of the current channel quality, and the client settings of the two groups are respectively set according to the channel quality sample value. Priority, the clients with the same priority in the two groups are paired in turn to obtain two paired clients. The base station then pre-increases the transmit power allocated to the client having a large channel quality sample value in the paired client, and pre-reduces the transmit power of the small client assigned to the channel quality sample value in the paired client.
  • the base station sorts the clients according to the current channel quality values reported by the nine clients.
  • the ranking results are shown in Table 3.
  • the client is equally divided into two groups: P and Q.
  • the client is as shown in Table 4, and the client in the Q group is shown in Table 5.
  • the clients with the same priority in the two groups are paired in sequence, such as the UE UE11 and UE19. Pairing, UE13 and UE23 are paired.
  • the air interface resources of the two clients are pre-adjusted according to the channel quality of the two clients that are performing the streaming media service in the same cell, and the air interface resources may be the sending power allocated by the base station to the client, or may be the client.
  • the codeword resource or the bandwidth allocated by the base station to the client are pre-adjusted according to the channel quality of the two clients that are performing the streaming media service in the same cell, and the air interface resources may be the sending power allocated by the base station to the client, or may be the client.
  • the codeword resource or the bandwidth allocated by the base station to the client may be the sending power allocated by the base station to the client.
  • pre-adjust the air interface resource allocated to the paired client in the same area pre-adjusts the two according to the air interface resource adjustment amount preset by the base station.
  • the client's air interface resources pre-adjust the air interface resource allocated to the paired client in the same area.
  • the base station pre-adjusts the air interface resource to the paired client, which may be:
  • the base station pre-increases the transmit power of the client that is positively assigned to the two channel quality samples in the paired client, and pre-decreases the two channel quality samples assigned to the paired client.
  • the transmission power of the client of the negative of the difference, the amount of transmission power increased by the client whose pre-increased transmission power is increased is the same as the amount of transmission power of the allocated transmission power pre-reduced.
  • the client UE2 is paired with the client UE11, so that the base station pre-allocates the transmit power of the client UE2 to + ⁇ , and the transmit power allocated to the client UE11 is, where ⁇ / is the current UE2
  • the allocated transmit power is the transmit power currently allocated by the UE 11, and is the transmit power adjustment amount preset by the base station.
  • the base station pre-adjusts the air interface resource to the paired client, and specifically:
  • the base station pre-increases the transmit power allocated to the client having a large channel quality sample value in the paired client, and pre-reduces the transmit power of the small client allocated to the channel quality sample value in the paired client,
  • the increased transmit power amount of the allocated transmit power pre-increased client is the same as the allocated transmit power pre-decreased transmit power amount.
  • the channel quality of the UE UE11 is 22
  • the transmission power allocated by the base station to the UE UE11 is ⁇
  • the channel quality of the UE UE19 is 18, and the base station is allocated to the client.
  • the transmission power of the UE19 is ⁇ ', so that after the base station pre-adjusts the transmission power of the UE UE11 and the UE19, the transmission power allocated by the base station to the UE1 will be The transmission power allocated to the client UE 19 will be P ' -p , which is the transmission power adjustment amount preset by the base station.
  • the channel quality sample value in this embodiment may specifically be a combination of one or more of the following parameters, such as the distance between two clients and the base station, the cache consumption speed of each client in the cache of the base station, and the RRSI (Received Signal)
  • parameters such as the distance between two clients and the base station, the cache consumption speed of each client in the cache of the base station, and the RRSI (Received Signal)
  • RRSI Received Signal
  • the base station calculates the throughput after the two clients pre-adjust the air interface resources according to the air interface resources that are pre-adjusted to the two clients.
  • the throughput may be the service transmission rate of the client.
  • the difference in throughput of the two clients is then calculated to obtain a change in the throughput of the cell.
  • the following method may be used to calculate the throughput change value of the cell:
  • ⁇ is the change value of the cell throughput
  • L and G respectively represent the bandwidth, user service quality and channel large-scale loss of the cell, and respectively take a fixed value of 3.84 MHz, 4.8 dB
  • G is an estimated value
  • ⁇ '' is the total received power of the client i and the client j respectively
  • Pi is the transmission power allocated by the base station to the client i and the client j respectively, which is the preset transmission power adjustment amount of the base station.
  • the resource adjustment threshold is a preset value of the base station, and is used by the base station to determine whether it is worthwhile to perform air interface resource adjustment on the two clients.
  • the base station If the change in the throughput of the cell after the two clients pre-adjust the air interface resource is greater than the preset resource adjustment threshold, the base station considers that the increase in the cell throughput is acceptable after adjusting the air interface resource to the client. of. In this way, the base station separately allocates pre-adjusted air interface resources to the two clients, so that the two clients receive the streaming media content of the adjusted code rate value sent by the media server.
  • the indication information that the base station sends the pre-adjusted air interface resource to the two clients and sends the rate adjustment to the two clients may be: the indication information for increasing and decreasing the code rate. If the base station increases the transmission power allocated to the client, the base station can send the code rate value information of the requested streaming media content to the client; if the base station reduces the transmission power allocated to the client, the base station can send a request to the client to reduce the request. Rate value information for streaming media content.
  • the pre-adjusted air interface resource is allocated to the two clients, and the indication information of the code rate adjustment is separately sent to the two clients, and the content of the streaming media with the code rate value is adjusted. If the base station increases the transmission power allocated to the client, the base station can send the streaming media content with the increased bit rate value to the client; if the base station reduces the transmission power allocated to the client, the base station can send the code rate value to the client. Reduced streaming content.
  • the indication information of the code rate adjustment sent to the two clients may be: the resource address information of the streaming media content adjusted by the code rate value. If the base station increases the transmission power allocated to the client, the base station can transmit the resource address information of the media content of the code rate value one level higher than the code rate value of the streaming media content currently requested by the client to the client. If the base station reduces the transmission power allocated to the client, the base station can transmit to the client the resource address information of the streaming media content having a code rate value one level lower than the code rate value of the streaming media content currently requested by the client.
  • the code rate of the streaming media resource currently stored by the media server includes:
  • the code rate of the media resource content currently requested by the client j is 630000 bps, and the code rate value of the media resource content currently requested by the client is 470000.
  • the cell throughput change value is greater than the preset resource adjustment gate.
  • the base station will divide The transmission power allocated to the client j is increased, and the transmission power allocated to the client i is reduced by ⁇ ⁇ . In this way, the code rate value of the streaming media content requested by the client j can be increased to 845000 bps, and the bit rate value of the streaming media content requested by the client i is reduced to 350,000 bps.
  • the base station can send a message to the client j to increase the code rate value of the requested streaming media content, such as increasing the information to 845000 bps, and send information to the client i that reduces the bit rate of the requested streaming media content, for example, to 370000 bps.
  • the base station can also directly obtain the streaming media content with the code rate of 845000 bps and 370000 bps from the media server and send it to the client j and the client i respectively.
  • the base station can also obtain the storage address information of the streaming media with a code rate of 845000 and a code rate of 370000, and directly send the storage address information to the client j and the client i, respectively.
  • the client does not need to monitor its own bandwidth in real time to switch the code rate value of the requested streaming media content, and only needs to receive the code rate adjustment indication information sent by the base station to directly perform the code rate switching, thereby reducing the burden on the client and being timely. Switches the 15 rate value of the requested streaming media content.
  • the method further includes: determining whether the throughput change value before and after the transmission power adjustment of the two clients is greater than a code rate switching threshold, where the code rate switching threshold is a base station pre- Set the value.
  • the code rate increase indication information is sent to the client; if the allocated transmission power is reduced, the client If the throughput change value before and after the transmission power pre-adjustment is greater than the rate switching threshold, the indication information for reducing the code rate is sent to the client; if the two clients are allocated before and after the transmission power adjustment If the quantity change value is less than the rate switching threshold, the indication information with the same code rate is sent to the client.
  • the rate adjustment indication information sent by the base station to the client may also be the indication information of the rate rate increase and decrease, or the stream media content of the code rate value adjusted, or the resource address of the stream media content adjusted by the code rate value. information.
  • the throughput before and after the specific client adjusts the air interface resources can be calculated by the following formula:
  • V. A - V. ⁇ ( g ⁇ PG
  • ⁇ is the guest The value of the transmission rate before the transmission power of the terminal j is unadjusted, p is the transmission power adjustment amount preset by the base station, and other parameters are consistent with the meanings of the foregoing formula.
  • the transmission power allocated by the client j is increased, and correspondingly, the transmission power allocated to the client i to which it is paired is reduced, specifically:
  • a T. V. - V. A PG ⁇ ( ⁇ , - P o
  • the code rate of the streaming media content currently requested by the client j is 630000 bps
  • the code rate value of the streaming media content currently requested by the client is 470000 bps
  • the code rate threshold is specifically 180000 bps
  • the client can request a code rate is 845000bps, if less than ⁇ 7 ⁇ 180000bps, client requests streaming rate value can be maintained unchanged.
  • ⁇ ⁇ is greater than 180,000 bps
  • the client request stream media rate value needs to be reduced to 350,000 bps to ensure that the client list can smoothly browse the streaming media content.
  • the change value of the client's own throughput is further determined, and is used to determine whether the code rate value of the requested streaming media content can be adjusted after the air interface resource is adjusted, thereby When the throughput of the cell is increased, the client can also ensure that the streaming content is smoothly browsed.
  • the method for improving the cell throughput based on the streaming media service is used for pre-adjusting the air interface resources of the two clients in the cell to perform the streaming media service, and calculating whether the code rate difference between the two clients after the pre-adjustment is greater than
  • the resource adjustment threshold is used to confirm whether the base station is worthy of making an air interface resource adjustment to the partner client. If the code rate difference of the paired client is greater than the resource adjustment threshold, the pre-adjusted air interface resource is provided to the client, thereby improving the throughput of the cell.
  • the base station may further provide the rate indication information according to the pre-adjusted air interface resource provided to the client, so that the client does not need to detect the air interface resource condition of the line to adjust the code rate of the requested streaming media, and can accurately and accurately perceive in real time. Network status reduces the load on the client.
  • the base station needs to determine whether the code rate change value of the client before and after the air interface resource adjustment is greater than the code rate adjustment threshold, and further confirm whether the code rate adjustment needs to be sent to the client. Instructing information to ensure that the client can smoothly browse streaming content.
  • An embodiment of the present invention provides an apparatus for improving cell throughput based on a streaming media service.
  • the method includes a pairing unit 31, a pre-adjusting unit 32, a throughput change value obtaining unit 33, and an adjusting unit 34 and a code rate.
  • the indication unit 35 is adjusted.
  • the pairing unit 31 is configured to pair the clients that are performing the streaming media service in the same cell according to the value of the client channel quality, and the two clients in the same area that are performing the streaming media service are specifically: the same ' _1, the matching client that pairs the clients of the streaming media business in the zone.
  • the pairing unit 31 is specifically configured to calculate a difference between two channel quality samples of the client before and during the same time interval of the client in the same 'zone';
  • the pairing unit 31 divides the clients performing the streaming media service in the cell into two groups according to the positive and negative values of the difference between the two channel quality samples of the client, and compares the two channel quality values.
  • the group with a positive difference value sets the priority level according to the order from the largest to the smallest, and sets the priority of the difference between the two channel quality samples to the negative value in the order of the smallest to the largest;
  • the clients with the same priority in the two groups are paired in turn.
  • the time interval is taken as 200 ms
  • the client performing the streaming service in the small area reports the channel quality sample value before 200 ms and the current channel quality sample value
  • the pairing unit 31 calculates the current channel quality sample value of the client and 200 ms.
  • the previous channel indicates the difference between the values, and then divides the client into two groups of P and Q according to the positive and negative values. 4
  • Tables 1 and 2 where Table 1 is the client of Group P and Table 2 is the client of Group Q.
  • the P group client sets the priority of the client according to ⁇ ? from large to small, and the ⁇ group includes 11 clients, and the pairing unit 31 sets the priority of the client to 1, 2, 3... to 11.
  • the pairing unit 31 sets the priority of the client from the ⁇ ? value of the Q group client from the smallest to the largest, and the Q group includes 10 clients, and the priority of the client is 1, 2, 3...10. Then, the clients with the same priority among the two groups in the group and the Q group are paired. If UE2 and UE11 are paired, UE4 and UE13 perform pairing. Pairing is not done for the last client in the group.
  • the pairing unit 31 may be further configured to divide the client into two groups according to the current channel quality of the client, and divide the client into two groups according to the channel quality, respectively. Set the priority; set the priority in the two groups The same client is paired in turn.
  • the pairing unit 31 sorts the clients according to the current channel quality values reported by the nine clients. The sorting results are shown in Table 3.
  • the client is equally divided into two groups: P and Q.
  • the client of the P group is shown in Table 4
  • the client of the Q group is shown in Table 5.
  • the pairing unit 31 sets the priority level according to the size of the channel quality of the client in the two groups of P and Q, and pairs the clients with the same priority in the two groups in sequence, for example, the client UE11 and the UE19 perform pairing. UE13 and UE23 perform pairing. The U31 in the Q group is not paired.
  • the pre-adjustment unit 32 is configured to pre-adjust the air interface resources allocated to the two clients in the same area, and the pre-adjusted air interface resources are adjusted according to the air interface resources preset by the base station. The amount of air interface resources of the two clients is pre-adjusted.
  • the pre-adjustment unit 32 pre-adjusts the air interface resource to the paired client.
  • the pre-adjusted air interface resource is the transmission power allocated by the base station to the client.
  • the pre-adjustment unit 32 may be configured to pre-increase the transmit power of the client that is positively assigned to the two channel quality samples in the paired client, and the pre-reduction is allocated to the paired client.
  • the transmission power of the client of the negative of the difference between the two channel quality samples, the amount of transmission power increased by the client whose pre-increased transmission power is increased is the same as the amount of transmission power of the allocated transmission power pre-reduced .
  • the client UE2 is paired with the client UE11 as shown in Table 1, Table 2, such that the pre-adjustment unit 32 pre-allocates the transmit power of the client UE2 to + ⁇ , and the transmit power allocated to the client UE11 is ⁇ ' - ⁇ Where ⁇ / is the transmit power currently allocated by UE2, which is the transmit power currently allocated by UE11.
  • the pre-adjustment unit 32 may be further configured to pre-increase the transmit power allocated to the client with a large channel quality value in the paired client, and pre-reduced the channel quality value assigned to the paired client.
  • the transmission power of the small client, the amount of transmission power increased by the client whose pre-increased transmission power is increased is the same as the amount of transmission power of the allocated transmission power pre-reduced. As shown in Tables 3, 4, and 5, if the channel quality of the UE UE11 is 22, the transmission power allocated by the base station to the UE UE11 is ⁇ , and the channel quality of the UE UE19 is 18, and the base station is allocated to the client.
  • the transmit power of the UE 19 is After the base station pre-adjusts the transmit power of the UE UE11 and the UE19, the transmit power allocated by the pre-adjustment unit 32 to the client UE11 is the transmit power allocated to the client UE19, which is the transmit power adjustment amount preset by the base station.
  • the channel quality sample value in the implementation may be a combination of one or more of the following parameters, such as the distance between two clients and the base station, the cache consumption speed of each client in the cache of the base station, and the Received Signal Strength Indication (RRSI).
  • RTSI Received Signal Strength Indication
  • the throughput change value obtaining unit 33 is configured to obtain a change value of the cell throughput after the two clients pre-adjust the air resource.
  • the throughput change value obtaining unit 33 calculates the throughput after the two clients pre-adjust the air interface resources according to the air interface resources that are pre-adjusted to the two clients, and the throughput may be the service transmission rate of the client.
  • the throughput change value acquisition unit 33 then calculates the difference in throughput of the two clients to obtain a change value of the cell throughput.
  • the throughput change value obtaining unit 33 may calculate the throughput change value after the two clients pre-adjust the air interface resource by using the following method:
  • L , G represent the bandwidth, user service quality and channel large-scale loss of the cell, respectively, w , respectively take a fixed value of 3.84MHZ, 4.8dB, G is the estimated value;
  • RSSIj , ⁇ '' are the client respectively The total received power of the i and the client j, Pi , respectively, the transmit power allocated by the base station to the client i and the client j, which is the air interface resource adjustment amount preset by the base station, where the air interface resource is specifically allocated to the client by the base station. Transmit power.
  • the adjusting unit 34 is configured to allocate a pre-adjusted air interface resource to the two clients, if the value of the change in the cell throughput is greater than a preset resource adjustment threshold after the two clients pre-adjust the air interface resource, So that the two clients can receive the streaming media content of the adjusted code rate value sent by the media server.
  • the resource adjustment threshold is a preset value of the base station, and is used by the adjustment unit 34 to determine whether it is worthwhile to perform air interface resource adjustment on the two clients.
  • the adjustment unit 34 If the value of the change of the throughput of the cell after the two clients are pre-adjusted to the air interface resource is greater than the preset resource adjustment threshold, the adjustment unit 34 considers that the amount of the cell throughput is increased after the air interface resource is adjusted to the client. acceptable. Thus adjusting unit 34 to two The clients respectively allocate pre-adjusted air interface resources, so that the two clients receive the streaming media content of the adjusted bit rate value sent by the media server.
  • the rate adjustment indication unit 35 is configured to send the rate adjustment indication information to the two clients according to the pre-adjusted air interface resources allocated to the two clients.
  • the rate adjustment indication unit 35 may be configured to: according to the base station, the pre-adjusted air interface resource is allocated to the two clients, and the indication information of the code rate adjustment is respectively sent to the two clients: the indication information for increasing and decreasing the code rate. If the adjustment unit 34 increases the transmission power allocated to the client, the code rate adjustment indication unit 35 can transmit the code rate value information for increasing the content of the requested streaming media to the client; if the adjustment unit 34 reduces the transmission power allocated to the client Thus, the rate adjustment indication unit 35 can send the code rate value information of the requested streaming media content to the client.
  • the rate adjustment instruction unit 35 may further allocate: according to the base station, the pre-adjusted air interface resource is allocated to the two clients, and the indication information of the code rate adjustment is separately sent to the two clients: . If the adjustment unit 34 increases the transmission power allocated to the client, the rate adjustment indication unit 35 can transmit the streaming content with the increased bit rate value to the client; if the adjustment unit decreases the transmission power allocated to the client, The code rate adjustment instructing unit 35 may transmit the streaming media content whose code rate value is reduced to the client.
  • the rate adjustment instruction unit 35 may further allocate: according to the base station, the pre-adjusted air interface resource is allocated to the two clients, and the indication information of the code rate adjustment is separately sent to the two clients: Resource address information. If the adjustment unit
  • the rate adjustment indication unit 35 can send the resource address of the streaming content of the code rate value one level higher than the rate value of the streaming media content currently requested by the client to the client. information. If the adjustment unit 34 reduces the transmission power allocated to the client, the rate adjustment indication unit 35 can transmit the streaming content of the code rate value one level lower than the code rate value of the streaming media content currently requested by the client to the client. Resource address information.
  • the code rate of the media resource stored by the current media server includes:
  • the value of the media resource content requested by the client j is 630000 bps, and the code rate of the media resource content requested by the client is 470000.
  • the adjustment unit 34 allocates The transmission power of client j is increased by P, and the transmission power allocated to client i is reduced by p .
  • the code rate value of the streaming media content requested by the client j can be increased to 845000 bps, and the bit rate value of the streaming media content requested by the client i is reduced to 350,000 bps.
  • the rate adjustment indication unit 35 can send information to the client j to increase the code rate value of the requested streaming media content, such as information raised to 845000 bps, and send information to the client i that reduces the code rate of the requested streaming media content, such as lowering. To 370,000 bps.
  • the rate adjustment indication unit 35 can also directly obtain the streaming media content with the code rate of 845000 bps and 370000 bps from the media server and send them to the client j and the client respectively.
  • the rate adjustment instruction unit 35 can also obtain the storage address information of the streaming media content with a code rate of 845000 and a code rate of 370000, and directly send the storage address information to the client j and the client i, respectively.
  • the client does not need to monitor its own bandwidth in real time to switch the code rate value of the requested streaming media content, and only needs to receive the code rate adjustment indication information sent by the base station to directly perform the code rate switching, thereby reducing the burden on the client and being timely. Switch the code rate value of the requested streaming media content.
  • the device may further include a client throughput determining unit, configured to determine whether the throughput change value before and after the transmission power adjustment of the two clients is greater than a code rate switching threshold, the rate switching gate The limit is the preset value of the base station;
  • the code rate adjustment indication unit is specifically configured to send the code rate improvement indication information to the client if the throughput change value before and after the transmission power adjustment of the allocated transmission power is greater than the code rate switching threshold. And if the allocated change value of the transmission power before and after the allocated transmit power pre-adjustment is greater than the rate switching threshold, sending the indication information of the reduced code rate to the client; if the two clients are When the throughput change value before and after the allocated transmission power adjustment is smaller than the code rate switching threshold, the indication information with the same code rate is transmitted to the client.
  • the specific client throughput determining unit calculates the swallow before and after the client adjusts the air interface resource.
  • the amount of spit can be calculated using the following formula:
  • the transmit power adjustment amount preset by the base station is consistent with the meaning of the aforementioned formula.
  • the transmission power allocated by the client j is increased, and correspondingly, the transmission power allocated to the client i to which it is paired is reduced, specifically:
  • the code rate of the streaming media content currently requested by the client j is 630000 bps
  • the code rate value of the streaming media content currently requested by the client is 470000 bps
  • the code rate threshold is specifically 180000 bps
  • the client can request the bit rate value to be 845000 bps; of course, if the ⁇ is greater than 180,000 bps, the client request stream media rate value must be reduced to 350,000 bps to ensure that the customer order can be guaranteed. Smoothly browse streaming content. If ⁇ , ⁇ 7 ⁇ less than 180000bps, client requests streaming rate value can be maintained unchanged.
  • the change value of the client's own throughput is further determined, and is used to determine whether the code of the requested streaming media content can be adjusted after the air interface resource is adjusted.
  • the rate value so that the throughput of the cell is increased, can also ensure that the client can smoothly browse the streaming media content.
  • the pre-adjusting unit is configured to pre-adjust air interface resources for the two clients in the cell to perform streaming media service
  • the throughput change value obtaining unit calculates the pre-adjusted two Whether the difference between the code rates of the two clients is greater than the resource adjustment threshold to confirm whether the base station is worthy of making an air interface resource adjustment to the pairing client. If the code rate difference of the paired client is greater than the resource adjustment threshold, the pre-adjusted air interface resource is provided to the client, thereby improving the throughput of the cell.
  • the rate adjustment indication unit may further provide the rate indication information according to the pre-adjusted air interface resource allocated to the client, so that the client does not need to detect the air interface resource condition of the line to adjust the code rate of the requested streaming media. Real-time and accurate perception of network status reduces the load on the client. Further, after confirming that adjusting the air interface resource is worthwhile, the client throughput determining unit further needs to determine whether the code rate change value of the client before and after the air interface resource adjustment is greater than the code rate adjustment threshold, and further confirm whether the client needs to be The indication of the rate adjustment is issued, thereby ensuring that the client can smoothly browse the streaming content.
  • the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed.
  • the foregoing steps include the steps of the foregoing method embodiments; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

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Abstract

本发明实施例提供了一种基于流媒体业务提升小区吞吐量的方法、系统，能够提升小区的吞吐量。该方法包括：根据同一小区内正在进行流媒体业务的两个客户端的信道质量采样值预调整分配给所述两个客户端的空口资源，所述预调整空口资源为根据基站预设的空口资源调整量预调整所述两个客户端的空口资源；获取所述两个客户端预调整空口资源后所述小区吞吐量的变化值；若所述两个客户端预调整空口资源后所述小区吞吐量的变化值大于预设的资源调整门限值，向所述两个客户端分配预调整的空口资源，以使得所述两个客户端可以接收媒体服务器发送的调整了码率值的流媒体内容。本发明适于通信技术领域。

Description

一种基于流媒体业务提升小区吞吐量的方法和装置 本申请要求于 2012 年 12 月 01 日提交中国专利局、 申请号为 201110393247.0、 发明名称为"一种基于流媒体业务提升小区吞吐量的方法 和装置 "的中国专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及通信技术领域， 尤其涉及一种基于流媒体业务提升小 区吞吐量的方法和装置。 背景技术 流媒体是指在互联网上以数据流的方式实时发布音频、视频等多 媒体内容。而流媒体技术是指将整个多媒体文件压缩编码成多个压缩 包， 向客户端实时的顺序传送， 用户可以一边解压播放已经下载的压 缩包， 一边下载后续的压缩包， 从而节省时间。
现有的 HTTP Streaming协议， 就是通过内容准备单元将多媒体 文件进行切片后封装成符合要求格式的媒体分片并生成每个媒体分 片的描述信息， 然后将媒体分片及媒体分片的描述信息推送到 HTTP Streaming 服务器， 其中媒体分片的描述信息描述了媒体分片的内 容、 多码率及媒体分片的请求地址构造信息。 HTTP Streaming 服务 器存储该媒体分片及媒体分片的描述信息，并相应来自客户端的媒体 分片请求信息。 客户端的媒体分片请求包括了请求的媒体分片的码 率、 分辨率和语言等信息。 客户端请求的媒体分片的码率是客户端根 据自身的带宽动态调整的。 如客户端是低带宽， 客户端则向 HTTP Streaming 服务器请求低码率的媒体分片， 当用户为高带宽时， 则向 HTTP Streaming 服务器请求高码率的媒体分片。
在固网中， 带宽资源相对不变， HTTP Streaming 服务器可以根 据不同的带宽资源提供不同码率媒体分片，客户端与 HTTP Streaming 服务器之间的码率适配相对简单。 而对于无线网络， 由于空口资源不 断变化， 媒体分片的码率要根据空口资源的变化进行码率适配。 而每个客户端在测量自身带宽时只能看到自己的链路状况， 根据 自身的链路状况调整请求的媒体分片的码率， 却无法合理利用整个小 区的资源， 影响了整个小区的吞吐量。
发明内容 本发明的实施例提供一种基于流媒体业务提升小区吞吐量的方 法和装置， 使得客户端所在的小区的资源分配更优化， 提高小区的吞 吐量。
为达到上述目的， 本发明的实施例釆用如下技术方案：
一种基于流媒体业务提升小区吞吐量的方法， 包括：
对同一小区内正在进行流媒体业务的两个客户端预调整分配给 所述两个客户端的空口资源，所述预调整空口资源为根据基站预设的 空口资源调整量预调整所述两个客户端的空口资源；
获取所述两个客户端预调整空口资源后所述小区吞吐量的变化 值；
若所述两个客户端预调整空口资源后所述小区吞吐量的变化值 大于预设的资源调整门限值，向所述两个客户端分配预调整的空口资 源，以使得所述两个客户端可以接收媒体服务器发送的调整了码率值 的流媒体内容。
一种基于流媒体业务提升小区吞吐量的装置，其特征在于，包括： 预调整单元，用于对同一' 区内正在进行流媒体业务的两个客户 端预调整分配给所述两个客户端的空口资源，所述预调整空口资源为 根据基站预设的空口资源调整量预调整所述两个客户端的空口资源； 吞吐量变化值获取单元，用于获取所述两个客户端预调整空口资 源后所述小区吞吐量的变化值；
调整单元，若所述两个客户端预调整空口资源后所述小区吞吐量 的变化值大于预设的资源调整门限值，用于向所述两个客户端分配预 调整的空口资源，以使得所述两个客户端可以接收媒体服务器发送的 调整了码率值的流媒体内容。 本发明实施例提供的基于流媒体业务提升小区吞吐量的方法、 装 置， 用于对小区内正在进行流媒体业务两两客户端预调整空口资源， 计算预调整空口资源后小区吞吐量的变化值是否大于资源调整门限值 用于确认基站是否值得对所述两两客户端作出空口资源调整的动作。 若预调整后小区吞吐量的变化值大于资源调整门限值， 则向客户端提 供预调整的空口资源， 使得客户端可以根据基站分配的预调整的空口 资源接收流媒体服务器发送的码率调整了的流媒体内容， 从而提高了 小区的吞吐量。
附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对 实施例或现有技术描述中所需要使用的附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员 来讲， 在不付出创造性劳动的前提下， 还可以根据这些附图获得其他的附 图。
图 1 为本发明实施例一提供的基于流媒体业务提升小区吞吐量 的方法流程图；
图 2 为本发明实施例二提供的基于流媒体业务提升小区吞吐量 的方法流程图；
图 3 为本发明实施例三提供的基于流媒体业务提升小区吞吐量 的装置框图。 具体实施方式 下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进 行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例， 而不是全部的实施例。基于本发明中的实施例， 本领域普通技术人员在没 有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的 范围。 实施例一、
本发明实施例提供了一种基于流媒体业务提升小区吞吐量的方 法， 如图 1所示， 包括：
5101、 对同一小区内正在进行流媒体业务的两个客户端预调整 分配给所述两个客户端的空口资源，所述预调整空口资源为根据基站 预设的空口资源调整量预调整所述两个客户端的空口资源。
基站首先获取到所管辖小区内正在进行流媒体业务的客户端列 表，然后基站对所管辖小区内正在进行流媒体业务的所有客户端两两 任意分组， 然后将同组的两个客户端预调整空口资源， 预调整空口资 源是可以根据同组的两个客户端的信道质量釆样值预调整的，例如基 站预调整的是分配给客户端的发送功率， 但不限于此。 如客户端 j的 信道质量釆样值为 22 , 基站当前分配给客户端 j 的发送功率为^ 客 户端 i的信道质量釆样值为 15 ,基站当前分配给客户端 i的发送功率 为 这样基站预调整客户端」、 i 的发送功率后， 分配给信道质量 好的客户端 j 的发送功率为 而分配给信道质量差的客户端 i 的发送功率为 ρ ρ , P为基站预设的发送功率调整量。
具体的基站可以釆用以下一种或多种参数组合来判断同组两个 客户端的信道质量情况， 如两个客户端与基站的距离、基站的緩存中 每个客户端的緩存消耗速度、 RRSI ( Received Signal Strength Indication , 接收的信号强度指示） 的大小、 客户端的信道信噪比情 况等一种或多种参数， 但本发明对此不作限定。
5102、 获取所述两个客户端预调整空口资源后所述小区吞吐量 的变化值。
5103、 若所述两个客户端预调整空口资源后所述小区吞吐量的 变化值大于预设的资源调整门限值，向所述两个客户端分配预调整的 空口资源，以使得所述两个客户端可以接收媒体服务器发送的调整了 码率值的流媒体内容。
基站调整了客户端的空口资源后，客户端可以实时监测自身的空 口资源情况，然后确定是否可以向媒体服务请求比当前接收的流媒体 内容码率值高的流媒体内容，或者向媒体服务器请求比当前接收的流 媒体内容码率值低的流媒体内容。当然基站也可以根据向客户端分配 的调整后空口资源， 直接向客户端发送码率调整指示信息， 用于通知 客户端可以调整请求流媒体内容的码率值。
本发明实施例提供的基于流媒体业务提升小区吞吐量的方法、装 置， 用于对小区内正在进行流媒体业务两两客户端预调整空口资源， 计算预调整空口资源后小区吞吐量的变化值是否大于资源调整门限 值用于确认基站是否值得对所述两两客户端作出空口资源调整的动 作。 若预调整后小区吞吐量的变化值大于资源调整门限值， 则向客户 端提供预调整的空口资源，使得客户端可以根据基站分配的预调整的 空口资源接收流媒体服务器发送的码率调整了的流媒体内容，从而提 高了小区的吞吐量。
实施例二
本发明实施例提供了一种基于流媒体业务提升小区吞吐量的方 法，其中本实施例中基站调整客户端的空口资源具体为基站调整分配 给客户端的发送功率， 具体如图 2所示， 包括：
S201、 根据所述客户端信道质量釆样值对同一小区内正在进行 流媒体业务的客户端两两配对， 获得配对客户端。
具体的客户端两两配对可以釆用以下方法：分别计算同一' 区内 每个正在进行流媒体业务的客户端的当前和相同时间间隔前的客户 端的两次信道质量釆样值的差值，按照每个客户端的所述两次信道质 量釆样值的差值的正负值将所述小区内进行流媒体业务的客户端分 为两组，将所述两次信道质量釆样值的差值为正值的组按照从大到小 的排序设置优先级的高低，将两次信道质量釆样值的差值为负值的组 按照从小到大的顺序设置优先级的高低，将所述两组中的优先级相同 的客户端依次两两进行配对， 获得两两配对的客户端。
例如， 时间间隔取 200ms , 小区内正在进行流媒体业务的客户端 上报 200ms 前的信道质量釆样值和当前的信道质量釆样值， 基站计 算客户端当前的信道质量釆样值和 200ms 前的信道指示值之差
ACQI。 然后根据 的正负值将客户端分成 P、 Q两组。 4叚设如表
1、 2所示， 其中表 1为 P组的客户端， 表 2为 Q组的客户端。
表 1为 P组客户端的
UE2 UE4 UE6 UE8 UE10 UE22 UE24 UE26 UE28 UE30 UE18
Figure imgf000008_0001
表 2为 Q组客户端的
Figure imgf000008_0002
P组客户端按照 Δ ? 从大到小设置客户端的优先级， Ρ 组中包 括有 11 个客户端， 客户端的优先级依次为 1 , 2 , 3.....到 11。 而 Q 组客户端从 Δ ? 从小到大设置客户端的优先级， Q组中包括 10个客 户端， 客户端的优先级依次为 1,2,3... .10。 然后将 Ρ组和 Q组两组中 优先级相同的客户端进行配对。 如 UE2和 UE11进行配对， UE4和 UE13进行配对。 然后基站预增大分配给 Ρ组中参加配对的客户端的 发送功率， 预减小分配给 Q组的客户端的发送功率。
具体的配对方法还可以为：按照客户端的当前信道质量釆样值从 大到小的排序将客户端平均分成前后两组，分别按照信道质量釆样值 的大小对所述两组的客户端设置优先级，将两组中的优先级相同的客 户端依次两两进行配对， 获得两个配对的客户端。 然后基站预增大分 配给所述配对客户端中信道质量釆样值大的客户端的发送功率，预减 小分配给所述配对客户端中信道质量釆样值的小的客户端的发送功 率。
例如小区内正在进行流媒体业务的客户端共有 9个，基站按照这 9个客户端上报的当前信道质量釆样值的大小对客户端进行排序， 排 序结果如表 3所示。
表 3 小区内进行流媒体业务的客户端信道质量釆样值
Figure imgf000008_0003
然后根据客户端的排序将客户端平均分成前后 P、 Q两组， Ρ组 客户端具体如表 4所示， Q组客户端具体如表 5所示。
表 4 Ρ组客户端信道质量釆样值
Figure imgf000008_0004
表 5 Q组客户端信道质量釆样值 UE19 UE23 UE25 UE29 UE31
18 13 10 8 7 然后按照 P、 Q两组中客户端的信道质量釆样值的大小设置优先 的高低， 将两组中优先级相同的客户端依次两量进行配对， 如客户端 UE11和 UE19进行配对， UE13和 UE23进行配对。
具体的，根据同一小区内正在进行流媒体业务的两个客户端的信 道质量釆样值预调整所述两个客户端的空口资源，空口资源具体可以 是基站分配给客户端的发送功率，也可是客户端的码字资源或基站分 配给客户端的带宽。
S202、对同一' 区内正在进行流媒体业务的配对客户端预调整分 配给所述配对客户端的空口资源，所述预调整空口资源为根据基站预 设的空口资源调整量预调整所述两个客户端的空口资源。
基站对配对的客户端预调整空口资源， 具体可以是：
基站预增大分配给所述配对客户端中两次信道质量釆样值的差 值为正数的客户端的发送功率，预减小分配给所述配对客户端中两次 信道质量釆样值的差值的负数的客户端的发送功率，所述分配的发送 功率预增大的客户端增加的发送功率量与所述分配的发送功率预减 小的发送功率量相同。如表 1、表 2中所示客户端 UE2与客户端 UE11 进行配对， 这样基站预分配个客户端 UE2的发送功率为 +ΔΡ , 分配 给客户单 UE11的发送功率为 , 其中 Ρ/为 UE2当前被分配的发 送功率， 为 UE11 当前被分配的发送功率， 为基站预设的发送 功率调整量。
基站对配对的客户端预调整空口资源， 具体还可以是：
基站预增大分配给所述配对客户端中信道质量釆样值大的客户 端的发送功率，预减小分配给所述配对客户端中信道质量釆样值的小 的客户端的发送功率，所述分配的发送功率预增大的客户端增加的发 送功率量与所述分配的发送功率预减小的发送功率量相同。 如表 3、 4、 5所示客户端 UE11 的信道质量釆样值为 22 , 基站分配给客户端 UE11的发送功率为 η，客户端 UE19的信道质量釆样值为 18 ,基站分 配给客户端 UE19的发送功率为 Ρ' , 这样基站预调整客户端 UE11、 UE19的发送功率后，基站分配给客户端 UE11的发送功率将为 分配给客户端 UE19的发送功率将为 P'- p , 为基站预设的发送功 率调整量。
其中本实施例中的信道质量釆样值具体可以是以下一种或多种 参数的组合， 如两个客户端与基站的距离、基站的緩存中每个客户端 的緩存消耗速度、 RRSI ( Received Signal Strength Indication, 接收的 信号强度指示）的大小、客户端的信道信噪比情况等一种或多种参数， 但本发明对此不作限定。
S203、获取所述两个客户端预调整空口资源后所述小区吞吐量的 变化值。
基站根据对两个客户端预调整的空口资源，计算两个客户端预调 整空口资源后的吞吐量， 吞吐量具体可以是客户端的业务传输速率。 然后计算所述两个客户端的吞吐量的差值获得该小区吞吐量的变化 值。 具体的， 计算小区的吞吐量变化值可以釆用以下方法：
AT_W ^ (P;+AP)*G w ^ (PI+AP)*G
L ESSI/-(P/+AP)*G L ESSI , - (P, + AP) * G
其中， Δ 为小区吞吐量的变化值， 、 L、 G分别代表该小区 的带宽、 用户服务质量和信道大尺度损耗， 、 分别取固定值 3.84MHZ, 4.8dB, G为预估值； 腿' 、 ^^''分别为客户端 i和客户 端 j的总接收功率， Pi 、 分别为基站当前向客户端 i和客户端 j分 配的发送功率， 为基站预设的发送功率调整量。
5203、若所述两个客户端预调整空口资源后所述小区吞吐量的变 化值大于预设的资源调整门限值，则向所述两个客户端分配预调整的 空口资源，以使得所述两个客户端接收媒体服务器发送的调整码率值 的流媒体内容。
上述的资源调整门限值是基站预设的值，用于基站判断是否值得 对所述的两个客户端进行空口资源调整。
若两个客户端预调整空口资源后的所述小区的吞吐量的变化值 大于预设的资源调整门限值， 则基站认为对客户端调整空口资源后， 小区吞吐量的增大量是可以接受的。这样基站向两个客户端分别分配 预调整的空口资源，以使得两个客户端接收媒体服务器发送的调整码 率值的流媒体内容。
5204、根据向所述两个客户端分配的预调整的空口资源向所述两 个客户端分别发送码率调整指示信息，以使得所述两个客户端接收所 述媒体服务器发送的调整了码率值的流媒体内容。
具体的， 根据基站向两个客户端分配预调整的空口资源， 向两个 客户端分别发送码率调整的指示信息具体可以是：提高和降低码率的 指示信息。 如若基站增大了分配给客户端的发送功率， 这样基站可以 向客户端发送提高请求流媒体内容的码率值信息；如若基站减小分配 给客户端的发送功率，这样基站可以向客户端发降低请求流媒体内容 的码率值信息。
具体的， 根据基站向两个客户端分配预调整的空口资源， 向两个 客户端分别发送码率调整的指示信息具体还可以是：调整了码率值的 流媒体内容。 如若基站增大了分配给客户端的发送功率， 这样基站可 以向客户端发送码率值提高的流媒体内容；若如基站减小分配给客户 端的发送功率， 这样基站可以向客户端发送码率值减小的流媒体内 容。
具体的， 根据基站向两个客户端分配预调整的空口资源， 向两个 客户端分别发送码率调整的指示信息具体还可以是：调整了码率值的 流媒体内容的资源地址信息。如若基站增大了分配给客户端的发送功 率 ,这样基站可以向客户端发送比客户端当前请求的流媒体内容的码 率值高一级的码率值的媒体内容的资源地址信息。如若基站减小分配 给客户端的发送功率，这样基站可以向客户端发送比客户端当前请求 的流媒体内容的码率值低一级的码率值的流媒体内容的资源地址信 息。
例如， 当前媒体服务器存储的流媒体资源的码率包括：
码率 （bps )
350000
470000
630000
845000
1130000
而客户端 j 当前请求的媒体资源内容的码率值为 630000bps , 客 户端当前请求的媒体资源内容的码率值为 470000 , 当预调整空口资 源后小区吞吐量变化值 大于预设的资源调整门限值时， 基站将分 配给客户端 j的发送功率增大了 , 分配给客户端 i的发送功率减 小了 Δ^ 。 这样客户端 j 请求的流媒体内容的码率值可以提高到 845000bps , 客户端 i请求的流媒体内容的码率值降低到 350000bps。
这样基站可以向客户端 j发送提高请求流媒体内容的码率值的信 5 息， 如提高到 845000bps的信息， 向客户端 i发送降低请求流媒体内 容的码率的信息， 如降低到 370000bps。
当然基站也可以从媒体服务器直接获取码率为 845000bps 和 370000bps的流媒体内容分别发送给客户端 j和客户端 i。
当然基站也可以获取码率为 845000和码率为 370000的流媒体内 10 容的存储地址信息， 将该存储地址信息直接分别发送给客户端 j和客 户端 i。
这样客户端不需要实时监测自身的宽带来切换请求流媒体内容 的码率值，只需要接收基站发送的码率调整指示信息来直接进行码率 切换， 从而减小了客户端的负担， 且能够及时切换请求流媒体内容的 15 码率值。
进一步的， 在步骤 S204之前， 还包括： 确定所述两个客户端被 分配的发送功率调整前后的吞吐量变化值是否大于码率切换门限值， 所述码率切换门限值为基站预设的值。
若分配的发送功率增大的客户端被分配的发送功率调整前后的 20 吞吐量变化值大于码率切换门限值，则向客户端发送码率提高指示信 息；若分配的发送功率减少的客户端被分配的发送功率预调整前后的 吞吐量变化值大于码率切换门限值，则向客户端发送降低码率的指示 信息；若所述两个客户端被分配的发送功率调整前后的吞吐量变化值 小于码率切换门限值， 则向客户端发送码率不变的指示信息。
25 当然基站向客户端发送的码率调整指示信息具体也可以是码率 提高和降低的指示信息， 或调整了码率值的流媒体内容， 或调整了码 率值的流媒体内容的资源地址信息。
具体客户端调整空口资源前后的吞吐量可以釆用以下的公式来 计算：
,n AT. = V.A - V. = ^ ( g ^ P G
jU ' ' p ' L RSSI - (P + AP) * G L RSSI^—P^ G
其中 为客户端 j被分配的发送功率调整后的码率值， ^为客 户端 j被分配的发送功率未调整前的码率值， p为基站预设的发送 功率调整量， 其它参数与前述的公式的含义一致。
客户端 j被分配的发送功率增加 , 相应的， 与其配对的客户 端 i被分配的发送功率则要减小 , 具体为：
A T. = V. - V.A P G ^ (Ρ, - P o
' ' p L RSSIj - P^ G L RSSIJ - (PJ + AP) * G
例如当客户端 j 当前请求的流媒体内容的码率值为 630000bps , 客户端当前请求的流媒体内容的码率值为 470000bps , 如码率门限值 具体为 180000bps , 当基站调整客户端 j的发送功率前后的的吞吐量 变化值 '大于 180000bps时， 客户端可以请求码率值为 845000bps , 若 Δ7^小于 180000bps时，客户端请求流媒体码率值则可以保持不变。 当然若 Δ ^大于 180000bps时， 客户端请求流媒体码率值需要降低到 350000bps , 才能保证客户单可以顺畅的浏览流媒体内容。
这样在基站向客户端发送码率调整指示信息前，进一步确定了客 户端自身吞吐量的变化值，用于确定是否可以在调整了空口资源后可 以调整请求流媒体内容的码率值，从而使得小区的吞吐量增大的情况 下， 还能保证客户端能够顺畅的浏览流媒体内容。
本发明实施例提供的基于流媒体业务提升小区吞吐量的方法，用 于对小区内正在进行流媒体业务两两客户端预调整空口资源，计算预 调整后两两客户端的码率差值是否大于资源调整门限值来确认基站 是否值得对配对客户端作出空口资源调整的动作。若预调整后配对客 户端的码率差值大于资源调整门限值，则向客户端提供预调整的空口 资源， 从而提高了小区的吞吐量。
进一步的，基站还可以根据向客户端提供的预调整的空口资源提 供码率指示信息，使得客户端不需要来自行检测自身的空口资源情况 来调整请求流媒体的码率， 可以实时准确的感知网络状态， 降低了客 户端的负荷。
进一步的，基站在确认调整空口资源是值得的后， 还需要判断客 户端在空口资源调整前后的码率变化值是否大于码率调整门限值，进 一步确认是否需要向客户端发出码率调整的指示信息，从而保证了客 户端能够顺畅的浏览流媒体内容。 实施例三、
本发明实施例提供了一种基于流媒体业务提升小区吞吐量的装 置， 具体如图 3所示， 包括配对单元 31、 预调整单元 32、 吞吐量变 化值获取单元 33和调整单元 34和码率调整指示单元 35。
配对单元 31 , 用于根据客户端信道质量釆样值对同一小区内正 在进行流媒体业务的客户端两两配对，所述同一' 区内正在进行流媒 体业务的两个客户端具体为：同一' _1、区内正在进行流媒体业务的客户 端两两配对的配对客户端。
所述配对单元 31具体用于计算同一' 区内正在进行流媒体业务 的客户端的当前和相同时间间隔前的客户端的两次信道质量釆样值 的差值；
配对单元 31按照客户端的所述两次信道质量釆样值的差值的正 负值将所述小区内进行流媒体业务的客户端分为两组，将所述两次信 道质量釆样值的差值为正值的组按照从大到小的排序设置优先级的 高低，将两次信道质量釆样值的差值为负值的组按照从小到大的顺序 设置优先级的高低；将所述两组中的优先级相同的客户端依次两两进 行配对。
例如， 时间间隔取 200ms , 小区内正在进行流媒体业务的客户端 上报 200ms 前的信道质量釆样值和当前的信道质量釆样值， 配对单 元 31计算客户端当前的信道质量釆样值和 200ms前的信道指示值之 差 , 然后根据 的正负值将客户端分成 P、 Q两组。 4叚设如 表 1、 2所示， 其中表 1为 P组的客户端， 表 2为 Q组的客户端。
P组客户端按照 Δ ? 从大到小设置客户端的优先级， Ρ 组中包 括有 11个客户端， 配对单元 31将客户端的优先级依次为 1 , 2 , 3... .. 到 11。 而配对单元 31将 Q组客户端的 Δ ? 值从小到大设置客户端 的优先级， Q组中包括 10个客户端， 客户端的优先级依次为 1 , 2 , 3... .10。 然后将 Ρ组和 Q组两组中优先级相同的客户端进行配对。 如 UE2和 UE11进行配对， UE4和 UE13进行配对。 对于 Ρ组中的最后 一个客户端则不进行配对。
所述配对单元 31具体还可以用于按照客户端的当前信道质量釆 样值从大到小的排序将客户端平均分成前后两组，分别按照信道质量 釆样值的大小对所述两组的客户端设置优先级；将两组中的优先级相 同的客户端依次两两进行配对。
例如小区内正在进行流媒体业务的客户端共有 9 个， 配对单元 31按照这 9个客户端上报的当前信道质量釆样值的大小对客户端进 行排序， 排序结果如表 3所示。
然后根据客户端的排序将客户端平均分成前后 P、 Q两组， P组 客户端具体如表 4所示， Q组客户端具体如表 5所示。
然后配对单元 31按照 P、 Q两组中客户端的信道质量釆样值的 大小设置优先的高低，将两组中优先级相同的客户端依次两量进行配 对， 如客户端 UE11和 UE19进行配对， UE13和 UE23进行配对。 对 于 Q组中的 U31则不进行配对。
预调整单元 32 , 用于对同一' 区内正在进行流媒体业务的两个 客户端预调整分配给所述两个客户端的空口资源，所述预调整空口资 源为根据基站预设的空口资源调整量预调整所述两个客户端的空口 资源。
配对完成后， 预调整单元 32对配对的客户端预调整空口资源， 例如预调整的空口资源是基站分配给客户端的发送功率。
所述预调整单元 32可以用于预增大分配给所述配对客户端中两 次信道质量釆样值的差值为正数的客户端的发送功率，预减小分配给 所述配对客户端中两次信道质量釆样值的差值的负数的客户端的发 送功率，所述分配的发送功率预增大的客户端增加的发送功率量与所 述分配的发送功率预减小的发送功率量相同。 如表 1、 表 2中所示客 户端 UE2与客户端 UE11进行配对， 这样预调整单元 32预分配个客 户端 UE2 的发送功率为 +ΔΡ , 分配给客户单 UE11 的发送功率为 ρ ' - Αρ , 其中 Ρ/为 UE2当前被分配的发送功率， 为 UE11 当前被分 配的发送功率。
所述预调整单元 32还可以具体用于预增大分配给所述配对客户 端中信道质量釆样值大的客户端的发送功率，预减小分配给所述配对 客户端中信道质量釆样值的小的客户端的发送功率，所述分配的发送 功率预增大的客户端增加的发送功率量与所述分配的发送功率预减 小的发送功率量相同。 如表 3、 4、 5所示如客户端 UE11的信道质量 釆样值为 22 ,基站分配给客户端 UE11的发送功率为 η，客户端 UE19 的信道质量釆样值为 18 , 基站分配给客户端 UE19的发送功率为 ， 这样基站预调整客户端 UE11、 UE19的发送功率后， 预调整单元 32 分配给客户端 UE11的发送功率为 分配给客户端 UE19的发送 功率为 - , 为基站预设的发送功率调整量。
其中本实施中的信道质量釆样值可以是以下一种或多种参数的 组合， 如两个客户端与基站的距离、基站的緩存中每个客户端的緩存 消耗速度、 RRSI ( Received Signal Strength Indication, 接收的信号强 度指示）的大小、 客户端的信道信噪比情况等一种或多种参数， 但本 发明对此不作限定。
吞吐量变化值获取单元 33, 用于获取所述两个客户端预调整空 口资源后所述小区吞吐量的变化值。
吞吐量变化值获取单元 33 根据对两个客户端预调整的空口资 源， 计算两个客户端预调整空口资源后的吞吐量，吞吐量具体可以是 客户端的业务传输速率。 然后吞吐量变化值获取单元 33计算所述两 个客户端的吞吐量的差值获得该小区吞吐量的变化值。 具体的， 吞吐 量变化值获取单元 33可以釆用以下方法计算两个客户端预调整空口 资源后的吞吐量变化值：
AT_W ^ (P;+AP)*G w ^ (PI+AP)*G
L ESSI/-(P/+AP)*G L ESSI , - (P, + AP) * G
其中， 、 L、 G分别代表该小区的带宽、 用户服务质量和信道 大尺度损耗， w 、 分别取固定值 3.84MHZ、4.8dB, G为预估值； RSSIj、 ^^''分别为客户端 i和客户端 j 的总接收功率， Pi、 分别为基站 当前向客户端 i和客户端 j分配的发送功率， 为基站预设的空口资 源调整量， 这里的空口资源具体为基站分配给客户端的发送功率。
调整单元 34, 若所述两个客户端预调整空口资源后所述小区吞 吐量的变化值大于预设的资源调整门限值，用于向所述两个客户端分 配预调整的空口资源，以使得所述两个客户端可以接收媒体服务器发 送的调整了码率值的流媒体内容。
上述的资源调整门限值是基站预设的值， 用于调整单元 34判断 是否值得对所述的两个客户端进行空口资源调整。
若两个客户端预调整空口资源后的所述小区的吞吐量的变化值 大于预设的资源调整门限值， 则调整单元 34认为对客户端调整空口 资源后， 小区吞吐量的增大量是可以接受的。 这样调整单元 34向两 个客户端分别分配预调整的空口资源，以使得两个客户端接收媒体服 务器发送的调整码率值的流媒体内容。
码率调整指示单元 35 , 用于根据向所述两个客户端分配的预调 整的空口资源向所述两个客户端发送码率调整指示信息。
具体的， 码率调整指示单元 35根据基站向两个客户端分配预调 整的空口资源，向两个客户端分别发送码率调整的指示信息具体可以 是： 提高和降低码率的指示信息。 如若调整单元 34增大了分配给客 户端的发送功率， 这样码率调整指示单元 35可以向客户端发送提高 请求流媒体内容的码率值信息； 若如若调整单元 34减小分配给客户 端的发送功率， 这样码率调整指示单元 35可以向客户端发降低请求 流媒体内容的码率值信息。
具体的， 码率调整指示单元 35根据基站向两个客户端分配预调 整的空口资源，向两个客户端分别发送码率调整的指示信息具体还可 以是： 调整了码率值的流媒体内容。 若如调整单元 34增大了分配给 客户端的发送功率， 这样码率调整指示单元 35可以向客户端发送码 率值提高的流媒体内容； 若如调整单元减小分配给客户端的发送功 率， 这样码率调整指示单元 35可以向客户端发送码率值减小的流媒 体内容。
具体的， 码率调整指示单元 35根据基站向两个客户端分配预调 整的空口资源，向两个客户端分别发送码率调整的指示信息具体还可 以是： 调整了码率值的流媒体内容的资源地址信息。 如若调整单元
34增大了分配给客户端的发送功率， 这样码率调整指示单元 35可以 向客户端发送比客户端当前请求的流媒体内容的码率值高一级的码 率值的流媒体内容的资源地址信息。 若如调整单元 34减小分配给客 户端的发送功率， 这样码率调整指示单元 35可以向客户端发送比客 户端当前请求的流媒体内容的码率值低一级的码率值的流媒体内容 的资源地址信息。
例如， 当前媒体服务器存储的媒体资源的码率包括：
码率 （bps )
350000
470000
630000 845000
1130000
而当前客户端 j请求的媒体资源内容的码率值为 630000bps , 客 户端请求的媒体资源内容的码率值为 470000 , 当△ 大于预设的资源 调整门限值时， 调整单元 34 将分配给客户端 j 的发送功率增大了 P , 分配给客户端 i的发送功率减小了 p。 这样客户端 j请求的 流媒体内容的码率值可以提高到 845000bps , 客户端 i请求的流媒体 内容的码率值降低到 350000bps。
这样码率调整指示单元 35可以向客户端 j发送提高请求流媒体 内容的码率值的信息， 如提高到 845000bps的信息， 向客户端 i发送 降低请求流媒体内容的码率的信息， 如降低到 370000bps。
当然码率调整指示单元 35也可以从媒体服务器直接获取码率为 845000bps和 370000bps的流媒体内容分别发送给客户端 j和客户端 i„
当然码率调整指示单元 35也可以获取码率为 845000和码率为 370000 的流媒体内容的存储地址信息， 将该存储地址信息直接分别 发送给客户端 j和客户端 i。
这样客户端不需要实时监测自身的宽带来切换请求流媒体内容 的码率值，只需要接收基站发送的码率调整指示信息来直接进行码率 切换， 从而减小了客户端的负担， 且能够及时切换请求流媒体内容的 码率值。
进一步， 该装置还可以包括客户端吞吐量确定单元， 用于确定所 述两个客户端被分配的发送功率调整前后的吞吐量变化值是否大于 码率切换门限值， 所述码率切换门限值为基站预设的值；
所述码率调整指示单元具体用于若分配的发送功率增大的客户 端被分配的发送功率调整前后的吞吐量变化值大于码率切换门限值， 则向客户端发送码率提高指示信息；若分配的发送功率减少的客户端 被分配的发送功率预调整前后的吞吐量变化值大于码率切换门限值， 则向客户端发送降低码率的指示信息；若所述两个客户端被分配的发 送功率调整前后的吞吐量变化值小于码率切换门限值，则向客户端发 送码率不变的指示信息。
具体客户端吞吐量确定单元计算客户端调整空口资源前后的吞 吐量可以釆用以下的公式来:
L
Figure imgf000019_0001
G
其中 基站预设的发送功率调整量。 具体其它参数与前述的公 式的含义一致。
客户端 j被分配的发送功率增加 , 相应的， 与其配对的客户 端 i被分配的发送功率则要减小 , 具体为：
A T _ W P G W (PJ - AP) * G
''― L RSSIi—P * G L RSSIj― (fl + AP) * G
例如当客户端 j 当前请求的流媒体内容的码率值为 630000bps , 客户端当前请求的流媒体内容的码率值为 470000bps , 如码率门限值 具体为 180000bps ,当调整单元 34调整客户端 j的发送功率前后的吞 吐量变化值 '大于 180000bps 时， 客户端可以请求码率值为 845000bps; 当然若 Δ 大于 180000bps时， 客户端请求流媒体码率值 必须降低到 350000bps ,才能保证客户单可以顺畅的浏览流媒体内容。 若 Δΐ 、 Δ7 ^小于 180000bps 时， 客户端请求流媒体码率值则可以保 持不变。
这样在码率调整指示单元 35 向客户端发送码率调整指示信息 前， 进一步确定了客户端自身吞吐量的变化值， 用于确定是否可以在 调整了空口资源后可以调整请求流媒体内容的码率值，从而使得小区 的吞吐量增大的情况下， 还能保证客户端能够顺畅的浏览流媒体内 容。
本发明实施例提供的基于流媒体业务提升小区吞吐量的装置，预 调整单元用于对小区内正在进行流媒体业务两两客户端预调整空口 资源，吞吐量变化值获取单元计算预调整后两两客户端的码率差值是 否大于资源调整门限值来确认基站是否值得对配对客户端作出空口 资源调整的动作。若预调整后配对客户端的码率差值大于资源调整门 限值，则向客户端提供预调整的空口资源 ,从而提高了小区的吞吐量。
进一步的，码率调整指示单元还可以根据向客户端分配的预调整 的空口资源提供码率指示信息，使得客户端不需要来自行检测自身的 空口资源情况来调整请求流媒体的码率，可以实时准确的感知网络状 态， 降低了客户端的负荷。 进一步的， 在确认调整空口资源是值得的后， 客户端吞吐量确定 单元还需要判断客户端在空口资源调整前后的码率变化值是否大于 码率调整门限值，进一步确认是否需要向客户端发出码率调整的指示 信息， 从而保证了客户端能够顺畅的浏览流媒体内容。
本领域普通技术人员可以理解：实现上述方法实施例的全部或部分步 骤可以通过程序指令相关的硬件来完成，前述的程序可以存储于一计算机 可读取存储介质中， 该程序在执行时， 执行包括上述方法实施例的步骤； 而前述的存储介质包括： ROM、 RAM, 磁碟或者光盘等各种可以存储程 序代码的介质。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并 不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范 围内， 可轻易想到变化或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范围应以所述权利要求的保护范围为准。

Claims

权利要求
1、 一种基于流媒体业务提升小区吞吐量的方法， 其特征在于， 包括：
对同一小区内正在进行流媒体业务的两个客户端预调整分配给 所述两个客户端的空口资源，所述预调整空口资源为根据基站预设的 空口资源调整量预调整所述两个客户端的空口资源；
获取所述两个客户端预调整空口资源后所述小区吞吐量的变化 值；
若所述两个客户端预调整空口资源后所述小区吞吐量的变化值 大于预设的资源调整门限值，向所述两个客户端分配预调整的空口资 源，以使得所述两个客户端可以接收媒体服务器发送的调整了码率值 的流媒体内容。
2、 根据权利要求 1所述的方法， 其特征在于， 所述若所述两个 客户端预调整空口资源后所述小区吞吐量的变化值大于预设的资源 调整门限值， 则向所述两个客户端分配预调整的空口资源后还包括： 根据向所述两个客户端分配的预调整的空口资源向所述两个客户端 发送码率调整指示信息。
3、 根据权利要求 2所述的方法， 其特征在于， 所述根据向所述 客户端分配的预调整的空口资源向所述两个客户端发送码率调整指 示信息具体包括：根据向所述客户端分配的预调整的空口资源向所述 两个客户端分别发送提高和降低码率的指示信息； 或
根据向所述客户端分配的预调整的空口资源向所述两个客户端 分别发送调整了码率值的流媒体内容； 或
根据向所述客户端分配的预调整的空口资源向所述两个客户端 分别发送调整了码率值的流媒体内容的资源地址信息。
4、 根据权利要求 1至 3任一项所述的方法， 其特征在于， 在所 述根据同一小区内正在进行流媒体业务的两个客户端的信道质量釆 样值预调整分配给所述两个客户端的空口资源，所述预调整空口资源 为根据基站预设的空口资源调整量预调整所述两个客户端的空口资 源前还包括：根据所述客户端信道质量釆样值对同一小区内正在进行 流媒体业务的客户端两两配对， 获得配对客户端； 所述根据同一小区内正在进行流媒体业务的两个客户端的信道 质量釆样值预调整分配给所述两个客户端的空口资源，所述预调整空 口资源为根据基站预设的空口资源调整量预调整所述两个客户端的 空口资源具体为：根据同一' 区内正在进行流媒体业务的配对客户端 的信道质量釆样值预调整分配给所述配对客户端的空口资源。
5、 根据权利要求 4所述的方法， 其特征在于， 所述同一小区内 正在进行流媒体业务的客户端两两配对是指根据所述客户端信道质 量釆样值进行配对具体包括：
分别计算同一小区内每个正在进行流媒体业务的客户端的当前 和相同时间间隔前的客户端的两次信道质量釆样值的差值；
按照每个客户端的所述两次信道质量釆样值的差值的正负值将 所述小区内进行流媒体业务的客户端分为两组，将所述两次信道质量 釆样值的差值为正值的组按照从大到小的排序设置优先级的高低，将 两次信道质量釆样值的差值为负值的组按照从小到大的顺序设置优 先级的高低；
将所述两组中的优先级相同的客户端依次两两进行配对； 所述对同一小区内正在进行流媒体业务的两个客户端预调整分 配给所述两个客户端的空口资源具体包括：
预增大分配给所述配对客户端中两次信道质量釆样值的差值为 正数的客户端的发送功率，预减小分配给所述配对客户端中两次信道 质量釆样值的差值的负数的客户端的发送功率，所述分配的发送功率 预增大的客户端增加的发送功率量与所述分配的发送功率预减小的 发送功率量相同。
6、 根据权利要求 4所述的方法， 其特征在于， 所述同一' _1、区内 正在进行流媒体业务的客户端两两配对是指根据所述客户端信道质 量釆样值进行配对具体包括：
按照客户端的当前信道质量釆样值从大到小的排序将客户端平 均分成前后两组，分别按照信道质量釆样值的大小对所述两组的客户 端设置优先级；
将两组中的优先级相同的客户端依次两两进行配对；
所述对同一小区内正在进行流媒体业务的两个客户端预调整分 配给所述两个客户端的空口资源具体包括： 预增大分配给所述配对客户端中信道质量釆样值大的客户端的 发送功率，预减小分配给所述配对客户端中信道质量釆样值的小的客 户端的发送功率，所述分配的发送功率预增大的客户端增加的发送功 率量与所述分配的发送功率预减小的发送功率量相同。
7、 根据权利要求 5或 6任一项所述的方法， 其特征在于， 所述 根据向所述两个客户端分配的预调整的空口资源向所述两个客户端 发送码率调整指示信息前还包括：
确定所述两个客户端被分配的发送功率调整前后的吞吐量变化 值是否大于码率切换门限值， 所述码率切换门限值为基站预设的值； 若分配的发送功率增大的客户端被分配的发送功率调整前后的 吞吐量变化值大于码率切换门限值，则向客户端发送码率提高指示信 息；若分配的发送功率减少的客户端被分配的发送功率预调整前后的 吞吐量变化值大于码率切换门限值，则向客户端发送降低码率的指示 信息；若所述两个客户端被分配的发送功率调整前后的吞吐量变化值 小于码率切换门限值， 则向客户端发送码率不变的指示信息。
8、 根据权利要求 1-7任一项所述的方法， 其特征在于， 所述小 区吞吐量的变化值具体可以釆用以下公式获得：
A T _ W ^ (P; + AP) * G w ^ (PI + AP) * G
L ESSI/ - (P/ + AP) * G L ESSI , - (P, + AP) * G，
其中， Δ 为小区吞吐量的变化值， 、 L、 G分别代表该小区 的带宽、 用户服务质量和信道大尺度损耗， 、 分别取固定值
3.84MHZ, 4.8dB , G为预估值； RSSIj、 ^^ ''分别为客户端 i和客户 端 j的总接收功率， Pi、 分别为基站向客户端 i和客户端 j提供的 发送功率， 为基站预设的发送功率调整量。
9、 一种基于流媒体业务提升小区吞吐量的装置， 其特征在于， 包括：
预调整单元，用于对同一' 区内正在进行流媒体业务的两个客户 端预调整分配给所述两个客户端的空口资源，所述预调整空口资源为 根据基站预设的空口资源调整量预调整所述两个客户端的空口资源； 吞吐量变化值获取单元，用于获取所述两个客户端预调整空口资 源后所述小区吞吐量的变化值； 调整单元，若所述两个客户端预调整空口资源后所述小区吞吐量 的变化值大于预设的资源调整门限值，用于向所述两个客户端分配预 调整的空口资源，以使得所述两个客户端可以接收媒体服务器发送的 调整了码率值的流媒体内容。
10、 根据权利要求 9所述的装置， 其特征在于， 还包括： 码率调 整指示单元，用于根据向所述两个客户端分配的预调整的空口资源向 所述两个客户端发送码率调整指示信息。
11、 根据权利要求 10所述的装置， 其特征在于， 所述码率调整 指示单元具体用于：根据向所述客户端分配的预调整的空口资源向所 述两个客户端分别发送提高和降低码率的指示信息； 或
根据向所述客户端分配的预调整的空口资源向所述两个客户端 分别发送调整了码率值的流媒体内容； 或
根据向所述客户端分配的预调整的空口资源向所述两个客户端 分别发送调整了码率值的流媒体内容的资源地址信息。
12、 根据权利要求 9-11任一项所述的装置， 其特征在于， 还包 括： 配对单元， 根据所述客户端信道质量釆样值对同一小区内正在进 行流媒体业务的客户端两两配对， 获得配对客户端；
所述预调整单元用于根据同一小区内正在进行流媒体业务的配 对客户端的信道质量釆样值预调整分配给所述配对客户端的空口资 源。
13、 根据权利要求 12所述的装置， 其特征在于， 所述配对单元 具体用于计算同一小区内正在进行流媒体业务的客户端的当前和相 同时间间隔前的客户端的两次信道质量釆样值的差值；
按照客户端的所述两次信道质量釆样值的差值的正负值将所述 小区内进行流媒体业务的客户端分为两组，将所述两次信道质量釆样 值的差值为正值的组按照从大到小的排序设置优先级的高低，将两次 信道质量釆样值的差值为负值的组按照从小到大的顺序设置优先级 的高低；
将所述两组中的优先级相同的客户端依次两两进行配对； 所述预调整单元用于预增大分配给所述配对客户端中两次信道 质量釆样值的差值为正数的客户端的发送功率，预减小分配给所述配 对客户端中两次信道质量釆样值的差值的负数的客户端的发送功率， 所述分配的发送功率预增大的客户端增加的发送功率量与所述分配 的发送功率预减小的发送功率量相同。
14、 根据权利要求 12所述的装置， 其特征在于， 所述配对单元 具体用于按照客户端的当前信道质量釆样值从大到小的排序将客户 端平均分成前后两组，分别按照信道质量釆样值的大小对所述两组的 客户端设置优先级；
将两组中的优先级相同的客户端依次两两进行配对；
所述预调整单元具体用于预增大分配给所述配对客户端中信道 质量釆样值大的客户端的发送功率，预减小分配给所述配对客户端中 信道质量釆样值的小的客户端的发送功率，所述分配的发送功率预增 大的客户端增加的发送功率量与所述分配的发送功率预减小的发送 功率量相同。
15、 根据权利要求 13或 14任一项所述的装置， 其特征在于， 还 包括： 客户端吞吐量确定单元， 用于确定所述两个客户端被分配的发 送功率调整前后的吞吐量变化值是否大于码率切换门限值，所述码率 切换门限值为基站预设的值；
所述码率调整指示单元具体用于若分配的发送功率增大的客户端 被分配的发送功率调整前后的吞吐量变化值大于码率切换门限值， 则 向客户端发送码率提高指示信息； 若分配的发送功率减少的客户端被 分配的发送功率预调整前后的吞吐量变化值大于码率切换门限值， 则 向客户端发送降低码率的指示信息； 若所述两个客户端被分配的发送 功率调整前后的吞吐量变化值小于码率切换门限值， 则向客户端发送 码率不变的指示信息。
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