WO2012100719A1

WO2012100719A1 - Method for indicating number of streams of users and communication device for same

Info

Publication number: WO2012100719A1
Application number: PCT/CN2012/070621
Authority: WO
Inventors: 朱胡飞
Original assignee: 华为技术有限公司
Priority date: 2011-01-28
Filing date: 2012-01-19
Publication date: 2012-08-02
Also published as: CN102625371B; CN102625371A

Abstract

An embodiment of the present invention provides a method for indicating the number of streams of users, comprising: generating, according to information about the number of streams allocated to users, allocation information about the number of streams, the allocation information comprising: a first indicator, used to indicate whether a user with a number of streams greater than 4 exists among the users; a second indicator, used to indicate the user with a number of streams greater than 4 when the first indicator indicates that a user with a number of streams greater than 4 exists; and indication bit groups of the number of streams, each indication bit group being used to record the number of streams of users corresponding to the indication bit group, which comprises the number of streams of users with a number of streams not greater than 4 and the number of streams of the user with a number of streams greater than 4; and transmitting the allocation information. Also provided is a device for implementing the method. The method can reduce the number of bits occupied by information about the number of streams of each user in transmission, and save bit resources and network communication resources during information transmission.

Description

Method and communication device for indicating user flow number

Technical field

The present invention relates to the field of communications, and in particular, to a method and a communication device for indicating and acquiring a number of user streams. Background technique

In a multi-user multi-input multi-output (MIMO) system, when an access point (AP) needs to communicate with multiple user terminals (Station, STA), the AP is each The STAs allocate the corresponding number of streams (Number of Streams), and send the stream number allocation information to the STA, so that the STA obtains the corresponding stream number information according to the stream number allocation information.

In an existing multi-user MIMO system, an AP supports a maximum of four STAs. The AP uses three bits to transmit stream number information for each STA according to the number of streams that the STA can allocate. The four STAs transmit the stream number allocation information, and the four STAs parse the corresponding bit bits to obtain the stream number information. For example, as shown in FIG. 1, the AP uses a total of 12 bits (bit: M 0-b21 ) to transmit stream number allocation information to four STAs, where blO-M2 is used to transmit the number of streams corresponding to STA1, bl3- M5 is used to transmit the number of streams corresponding to STA2, bl6-bl8 is used to transmit the number of streams corresponding to STA3, and M9-b21 is used to transmit the number of streams corresponding to STA4.

However, the inventors have found that using the method provided by the prior art to transmit stream number information occupies more bit resources, and there is a problem that network communication resources are wasted. Summary of the invention

Embodiments of the present invention provide a method and a communication apparatus for indicating and acquiring a number of user streams, which can save bit resources occupied by transport stream number allocation information.

A method of indicating the number of user streams, including:

Generating the flow number allocation information according to the flow number information allocated to the user, where the flow number distribution information includes: a first indication identifier, configured to indicate that the determination is in the user Whether there is a user whose flow number is greater than 4; a second indication identifier, configured to indicate a user whose flow number is greater than 4 when the first indication identifier indicates that a user with a flow number greater than 4; the flow number indication bit group, each of the The number of the flow indicator group is used to record the number of streams of the user corresponding to the stream number indicating bit group, and the number of streams of the user whose number of streams is not greater than 4 and the number of streams of the user whose stream number is greater than 4;

Sending the flow number allocation information.

In addition, an embodiment of the present invention further provides an apparatus for indicating a number of user flows, where the apparatus includes:

The flow number allocation information generating unit is configured to generate flow number allocation information according to the flow number information allocated for the user, where the flow number distribution information includes: a first indication identifier, configured to indicate whether a flow exists in the user a user whose number is greater than 4; a second indication identifier, configured to indicate a user whose flow number is greater than 4 when the first indication identifier indicates that a user with a flow number greater than 4; the flow number indication bit group, each of the flow number indication The bit group is configured to record the number of streams of the user corresponding to the stream number indicating bit group, where the number of streams of the user whose number of streams is not greater than 4 and the number of streams of the user whose stream number is greater than 4;

And a sending unit, configured to send the flow number allocation information.

The flow number allocation information used by the method and the device in the implementation of the present invention uses the level 2 indication information to distinguish the flow number of the user, can accurately record the number of user streams in various situations, and reduces the transmission of each user. The number of bits occupied by the stream number information further reduces the number of bits occupied by the entire stream number allocation information, and saves bit resources for information transmission and network communication resources. DRAWINGS

1 is a signaling structure diagram of a prior art transmission stream number information;

2 is a flowchart of a method according to an embodiment of the present invention;

FIG. 3 is a structural diagram of a communication apparatus according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to solve the problem of a large amount of bit resources occupied by the transmission stream number allocation information, Embodiments of the present invention provide a method and communication apparatus for indicating and acquiring a number of user streams. The present invention takes a multi-user multi-input multi-output (MIMO) system as an example. When an access point AP needs to communicate with multiple STAs, the AP allocates a user data stream number to the STA. In an actual application, the AP can be considered as a special STA. In some scenarios, the communication peers can be APs and STAs. In the embodiment, it is considered that generally the total number of antennas 8 of the STA does not increase, so that the total maximum number of streams is 8.

The number of streams per user is not more than 8, and the total number of streams is also no more than 8. Then, in MU-MIMO, if there is a certain number of user streams greater than 4, then only 1 user should have more than 4 streams, while others The number of users of the user must be less than or equal to 3; and the maximum number of streams of other users is greater than or equal to 2, and the number of streams of the remaining users must be less than 2.

In the first embodiment, the method may be performed as an AP. The AP uses the 11-bit flow number allocation information to indicate the number of user flows. Referring to Table 1, the method uses a total of 11 bits of the bit b00-bl9 to indicate the number of user flows, where bOO is the first indication identifier, and the first indication identifier includes 1 The first indicator is used to indicate whether there is a user whose number of streams is greater than 4. If the first indicator is 1, it means that the number of users in the group of users is greater than 4. If the first indicator is 0, it means that the number of users without the user in the group is greater than 4. Of course, in the actual application, the first indication identifier b00 is 0, indicating that the number of users has more than 4, and b00 is 1 indicates that the number of users without the user is greater than 4.

Table 1

Referring to Table 2, the flow number allocation information further includes a second indication identifier, where the second indication identifier includes 2 bits bl0, bl l. The other 8 bits constitute a stream number indicating bit group every 2 bits, and each stream number indicates that the bit group is used to indicate the number of streams of one user. For example, bit group 1 is used for the number of streams of the first user, and so on. In this embodiment, if the first indication identifier is 1, it indicates that the number of users of the group of users is greater than 4. Table 2

If the first indication flag b00 is 0, that is, no user has more than 4 streams. When the number of streams of no users is greater than 4, the second indication is used to indicate whether the number of streams of users whose number of streams is equal to 3 is 4.

The second indication flag includes 2 indicator bits (i.e., bits blO and M l ). In addition, there are 8 stream number indicating bits (bl2-M9), and each of the 8 stream number indicating bits constitutes a stream number indicating bit group, and each stream number indicating bit group is used to indicate the number of streams of one STA. .

If the number of the flow indicator indicates that the value of the bit group is the first indication value, the value corresponding to the first indicator value is the number of streams of the STA corresponding to the bit group indicating the bit group; if the number of the stream indicates that the value of the bit group is the second And indicating a value, the value represented by the bit sequence formed by the combination of the one indication bit in the second indication identifier and the bit in the flow number indication bit group is the number of flows of the STA corresponding to the bit number indication bit group. The specific examples are as shown in Table 3.

The first indication value of the value of the specific stream number indicating bit group may be 00 or 01 or

10. The second indicator value is 11. If the number of streams indicates that the value of the bit group is the second indication value, the number of streams indicates that the number of streams of the STA corresponding to the bit group is 3 or 4. If the number of the flow indicator indicates that the value of the bit group is the second indication value, the number of flows of the STA corresponding to the bit group according to the number of indications in the second indication identifier is: a second indication value, and the flow number indication bit group is the first flow number indication bit group that takes the second indication value, and according to the first indication identifier (ie, the first indication bit in the second indication identifier) Determining, in combination with the flow number indicating bit group, the number of streams of the STA, if the number of streams indicates that the value of the bit group is a second indication value, and the number of streams indicates that the bit group is the second stream that takes the second indication value a number indicating bit group, according to the second indication identifier (ie, the second indication bit in the second indication identifier) The number of streams indicates that the bit group jointly determines the number of streams of the STA. A bit in the bit sequence corresponding to one of the two indicator identifiers and a bit sequence in the stream indicator group is a high bit, and the number of the stream indicates that the bit in the bit group is Low.

Specifically, when the flow number allocation information is as shown in Table 3, step 1702 first parses bl2-bl9 to obtain the number of streams of each user in the user set, the number of streams of user 1 is 1, and the number of streams of user 2 is 3. The number of flows of user 3 is 0, and the number of flows of user 4 is 3. Then, according to the first indication identifier bl 0=0 and the second indication identifier bl l = l, it is determined that the actual number of streams of the second stream is 3 4, the actual number of flows of user 4 is 4. If the local user is user 4, it is determined that the number of flows allocated to the local user is 4.

table 3 :

Note that in practice, it is possible that bl2-bl9 only indicates a user with a stream number of 3, and M l has no meaning at this time; it is also possible that bl2-bl9 does not indicate any user with a stream number of 3, at this time bl O and bl l It doesn't make sense. For the above M l does not mean, or blO and bl l have no meaning, usually set these meaningless bits to 0. Since blO or bl l is 0, the number of streams of the corresponding STA with the number of streams 3 remains unchanged, so that the receiving end does not need to perform the possible change of the corresponding STA stream number in the subsequent steps for the blO or bl l of 0. Processing, thereby reducing the implementation complexity of the receiving end.

In a further embodiment, if the first indication flag b00 is 1, it indicates that the number of users has more than 4. Then, the second indication identifier indicates that the number of user flows is greater than 4, and may actually be any one of the first to fourth users, but there should be only one. See Table 4, Table 4

In the flow number allocation information, the first indication identifier bOO is 1 indicating that there are more than 4 users, and the second indication identifier (bl O , b l l ) indicates that the number of the first user flows is greater than 4. The remaining 8 bits of the 4th-11th indicate the number of streams of 4 users, and 8 bits of each of the 2 bits constitute a stream number indicating bit group, and each stream number indicates that the bit group is used to indicate the number of streams of one user. For example, bit group 1 is used to record the number of streams of the first user, and the like. The user indicating that the number of streams is greater than 4 is indicated by the second indication. For example, if the second indication identifier is 00, 01, 10, 11, it indicates that the first, second, third, and fourth users indicate that the number of streams is greater than four. For users whose number of streams is not greater than 4, 00, 01, 10, and 11 respectively indicate that the number of streams is 0, 1, 2, 3, and since the total number of streams is not greater than 8, when there are users with a stream number greater than 4, The maximum number of streams for other users is 3. For the user whose second indication identifier indicates that the number of streams is greater than 4, 01, 10, and 11 respectively indicate the number of streams 5, 6, 7, and it is further agreed that the number of streams of the user is 8 with 00.

The flow number allocation information in the implementation of the present invention uses the level 2 indication information to distinguish the number of streams of the user, can accurately record the number of streams of each user in various situations, and reduces the number of streams of each user. The number of occupied bits further reduces the number of bits occupied by the entire stream number allocation information, and saves bit resources for information transmission and network communication resources.

In the second embodiment, referring to Table 5, the flow number allocation information composed of 10 bits (b00-M 8 ) indicates the number of user flows, which is the same as the first embodiment, and the first bit b00 is the first indication identifier still indicating Is there a user with more than 4 streams?

In this embodiment, the first indication identifier b00 is 0, indicating that no user has more than 4 streams. In this example, b00 is 0, indicating that no user has more than 4 streams.

When the number of streams of no users is greater than 4, the first indication flag b00 is 0. Number of streams See Table 6 for allocation information.

Table 6

Referring to Table 6, first, the second indication flag (blO) is used to indicate whether there are 4 users, and the number of streams 4 is also a flag. When the flag bit bl0 is 0, it means that there is no user with a stream number of 4. When the flag bit blO is 1, it indicates that there is a user with a stream number of 4, that is, there are at least one user with a stream number of 4. . In this example, the second indication flag blO is 0. A bl0 of 0 indicates that there is no user with a stream number of four, and the remaining 8 bits of the stream number allocation information (bll-bl8) are used to represent the number of streams of each user in the user set, wherein there are 4 users (user 1 - user 4) The number of streams per user is represented by 2 bits, and the 2 bits are referred to as stream number indicating bit groups. We give more specific details, assuming a normal binary, then a stream number indicates that the bit group is 00, 01, 10, and 11 respectively indicate that the stream number is 0, 1, 2, 3. When the second indication flag blO is 1, there is at least one user with a stream number of 4. There are two cases at this time. In the first case, there are only one user whose number of streams is greater than or equal to 3, which is equivalent to the number of users with 1 stream number equal to 4 and no user with the number of streams equal to 3. In this case, there are two users whose number of streams is greater than or equal to 3, which is equivalent to a user who has 1 stream number equal to 4 and another user whose stream number is equal to 3 or 4.

When the second indication flag blO is 1, it is case one (that is, there is only one user whose number of streams is greater than or equal to 3). A blO of 1 indicates that at least one user with a stream number of 4 exists, and the remaining 8 bits of the stream number allocation information (bll-bl8) are used to represent the number of streams of each user in the user set, wherein there are 4 users (user 1 - User 4) The number of streams per user is represented by 2 bits, and the 2 bits are referred to as stream number indicating bit groups. Assuming a normal binary number, one stream indicates that the bit group is 00, 01, 10, and 11 indicates that the number of streams is 0, 1, 2, and 4, respectively. In this example, one stream number indicates that the bit group is 11 and the stream number is 4. For the flow number 4, there are case 2 when the identification bit blO is 1 (that is, there are 2 users whose flow number is greater than or equal to 3), and there are only 3 possible flow number distributions, that is, the flow number distribution 1 is recorded as (4, 3, 0, 0), indicating that the number of streams of four users is 4, 3, 0, 0; the distribution of stream number 2 is (4, 3, 1, 0), indicating that the number of streams of four users is 4 , 3, 1, 0; The flow number distribution 3 is recorded as (4, 4, 0, 0), indicating that the flow numbers of the four users are 4, 4, 0, 0, respectively. Note that each of the above-mentioned flow number distributions is only a combination of the order of the four users' flow numbers, and there are various differences between the four users and the four flow numbers of the one flow number distribution. - Correspondence, it is well known that the number of different - corresponding relationships is less than or equal to the number of all possible permutations of four elements, that is, 24.

A further embodiment indicates that if the first indication flag b00 is 1, it indicates that the number of users has a flow number greater than four. Refer to Table 7, the flow number assignment information of this embodiment.

Table 7

Referring to Table 7, the first indication flag b00 is 1, indicating that the number of users has more than four. The second indication flag (blO, bll) indicates that the number of user streams is greater than four. For example, if the second indication is 00, 01, 10, 11, it means that the first, 2, 3, 4 users indicate that the number of streams is greater than 4. The next 4 bits (bl2-bl5) form a bit group every 2 bits, one of which is a stream number indicating bit group, and the other is a user indicating bit group, for example, the stream number indicating bit group 1 (bl2-M3) is used for Indicates the number of user-specific flows whose number of streams is greater than 4, as previously determined for users with a flow number greater than 4. The user indication bit group 2 (bl4-bl5) is used to indicate a user indicating that the number of streams is 2 or 3 among the other 3 users, or a user indicating that the number of streams 2 or 3 does not exist among the other 3 users. The last 3 bits (M6-M8) are 3 bit groups, each bit group The system includes 1 bit, which respectively indicates the number of streams of the other 3 users indicating that the number of streams is not more than 4. It can be considered that the three bit groups (M6-bl8) sequentially indicate the number of streams of the first, second, and third users whose number of streams is not more than four. Since the number of users with more than 4 is at least 5, then the number of streams of other users still has 3, 0, 0 or 2, 1, 0 or 2, 0, 0 or 1, 1, 1 or 1, 1, 0 or 1, 0, 0. If there is a user whose number of streams is 2 or 3, for example, if the number of streams of the first user among the remaining 3 users is 2 or 3, then bit group 2 is set to 01 to indicate that the first stream has a number of streams not greater than 4 The number of streams is 2 or 3, and then bit group 3, that is, bit bl6 is set to 0 or 1, to indicate that the number of streams indicated by it is 2 or 3, respectively, for example, bit group 3, that is, bit bl6 is set to 0, the number of users is 2; bit group 3, that is, bit bl6 is set to 1 for the number of user streams to be 3; The number of streams of other users is 0 or 1, which can be indicated by a value of 0 or 1 of 1 bit, that is, by bit group 4, 5.

A more detailed implementation manner is: the user indicates that the bit group 2 (bl4-bl5) takes 01 or 10 or 11, respectively indicating that the first or second or third user among the other three users is the number of streams 2 or 3. User, and the user indicates that bit group 2 (bl4-M5) takes 00 to indicate that there are no users of stream number 2 or 3 among the other three users. The last 3 bits (M6-bl8) are 3 groups of bits, and each bit group includes 1 bit, indicating the number of streams of the other 3 users indicating that the number of streams is not greater than 4. It can be considered that the three bit groups ( bl6-bl8 ) sequentially indicate the number of streams of the first, second, and third users whose number of streams is not greater than 4: for the user indicating that the bit group 2 indicates that the number of streams is 2 or 3, One of the corresponding three bit groups (bl6-bl8), for example, a value of 1 indicates a stream number of 3, a value of 0 indicates a stream number of 2; and a user indicates that the bit group 2 does not indicate that the stream number is 2 The remaining two users of 3 or 3, one of the corresponding 3 bit groups (bl6-bl8), have a value of 1 indicating the number of streams 1, and a value of 0 indicating the number of streams 0.

The flow number allocation information used by the method in the implementation of the present invention uses the level 2 indication information to distinguish the flow number of the user, can accurately record the number of user streams in various situations, and reduces the flow of transmitting each user. The number of bits occupied by the number information further reduces the number of bits occupied by the entire stream number allocation information, and saves bit resources for information transmission and network communication resources. The embodiment of the present invention simultaneously provides a method for indicating the number of user flows, at an access point.

When the AP needs to communicate with multiple STAs, refer to Figure 2. When an AP allocates user data streams to STAs, it includes:

101. Generate flow number allocation information according to the flow number information allocated to the user.

The stream number allocation information adopts the specific frame format given in the above embodiment. Set the value of the corresponding bit in the stream number allocation information according to the requirements of the above frame format. The flow number allocation information includes: a first indication identifier, configured to indicate whether a user having a flow number greater than 4 exists in the user, and a second indication identifier, configured to: when the first indication identifier indicates the number of flows When the number of users is greater than 4, the number of streams is greater than 4; the number of streams indicates a group of bits, and each of the number of streams indicates that the group of bits is used to record the number of streams of users corresponding to the group of indicator bits, including the number of streams. The number of streams of users greater than 4 and the number of streams of users whose number of streams is greater than 4.

The specific AP determines the first indication identifier according to whether the number of users of the user is greater than 4. The second identity is then determined based on user information with a stream number greater than four. The number of streams corresponding to each user stream is carried by the bit number indicating bit group, and the stream number indicating bit group is determined according to the number of streams of each user stream.

When the number of users has more than 4, the first indicator is set to 1. The user information having a stream number greater than 4 is then recorded in the second identifier. The second indication identifier uses 00, 01, 10, 11 to indicate that the first, second, third, and fourth users indicate that the number of streams is greater than four.

When the flow number allocation information is 11 bits in total, each of the 8 bits except the first indication identifier and the second indication identifier forms a stream number indication bit group, and each stream number indication bit group is used to indicate The number of streams for a user. For example, bit group 1 is used for the number of streams of the first user, and so on. For a user whose number of streams is not greater than 4, the binary information composed of two bits in the bit group specifically represents the value of the stream of the user. For users with a flow number greater than 4, the bit group is 01, 10, and 11 respectively indicate the number of streams 5, 6, and 7. Further, it is also stipulated that the number of streams of the user is 00 with 00.

When the stream number allocation information is 10 bits in total, 4 out of 7 bits out of the first indication identifier and the second indication identifier are composed of 2 stream bits to form a stream number indicating bit group, wherein 1 bit group is used for Indicates the number of user-specific flows whose number of streams is greater than 4. Another user indicates that the bit group is used to indicate that the user whose number of streams is 2 or 3 is determined. And determining, according to the flow number allocation information, a value of the first indication identifier and the second indication identifier and the user indication bit group. Finally, 3 bits are used as 3 bit groups, and the value of 1 bit included in each determined bit group indicates the number of streams of the other 3 users indicating that the number of streams is not greater than 4.

102. Send flow number allocation information to the user.

The method for transmitting flow number allocation information in the implementation of the present invention distinguishes the flow number of the user by using the level 2 indication information, can accurately record the number of user streams in each case, and reduces the flow of transmitting each user. The number of bits occupied by the number information further reduces the number of bits occupied by the entire stream number allocation information, and saves bit resources for information transmission and network communication resources.

Further, the embodiment of the present invention provides a communication apparatus for implementing the foregoing method. In a multi-user multi-input multi-output (MIMO) system, the apparatus may be placed on an AP or an STA to indicate the number of streams of the user. . Generally, when an access point AP needs to communicate with multiple STAs, the AP allocates the number of user data streams to the STA. In an actual application, the AP can be considered as a special STA. In some scenarios, the communication peers can be APs and STAs. In the embodiment, it is considered that the total maximum number of antennas 8 of the STA is generally not increased, so that the total maximum number of streams is 8. In the embodiment of the present apparatus, the implementation of the method is as described above, and the apparatus is to implement the above method, so the processing in the method is the processing of the apparatus.

The communication device 20 includes:

The flow number allocation information generating unit 201 is configured to generate flow number allocation information according to the flow number information allocated for the user, where the flow number distribution information includes: a first indication identifier, configured to indicate whether the number of flows in the user is greater than 4 And a second indication identifier, configured to: when the first indication identifier indicates that a user with a flow number greater than 4 indicates a user whose flow number is greater than 4; the flow number indicates a bit group, and each first-number indicator indicates a bit group for recording and The number of flows indicates the number of streams of the user corresponding to the bit group, including the number of streams of users whose number of streams is not greater than 4, and the number of streams of users whose number of streams is greater than 4.

The sending unit 203 is configured to send the flow number allocation information.

The stream number allocation information generating unit 201 adopts the tool given in the above method embodiment. Body frame format. The stream number allocation information generating unit 201 determines the first indication flag based on whether or not the number of streams of the user is greater than four. The second identity is then determined based on user information having a stream number greater than four. The number of streams corresponding to each user stream is carried by the bit number indicating bit group, and the stream number indicating bit group is determined according to the number of streams of each user stream. When the number of users has more than 4, the first indicator is set to 1. The user information having a stream number greater than 4 is then recorded in the second identifier. The second indication identifier uses 00, 01, 10, and 11 to indicate that the first, second, third, and fourth users indicate that the number of streams is greater than four. When the flow number allocation information is 11 bits in total, each of the 8 bits except the first indication identifier and the second indication identifier constitutes a stream number indication bit group, and each stream number indication bit group is used for Indicates the number of streams for a user. For example, bit group 1 is used for the number of streams of the first user, and the like. For a user whose number of streams is not greater than 4, the binary information composed of two bits in the bit group specifically represents a value of the stream value of the user. For users with a flow number greater than 4, the bit group is 01, 10, and 11 respectively indicate the number of streams 5, 6, and 7. Further, it is also stipulated that the number of streams of the user is 8 with 00. When the stream number allocation information is 10 bits in total, 4 out of 7 bits out of the first indication identifier and the second indication identifier are composed of 2 stream bits to form a stream number indicating bit group, wherein 1 bit group is used for Indicates the number of user-specific flows whose flow number is greater than 4, and another user indicates that the bit group is used to indicate the user whose flow count is 2 or 3. And determining, according to the flow number allocation information, a value of the first indication identifier and the second indication identifier and the user indication bit group. Finally, three bits are used as three bit groups, and the value of one bit included in each determined bit group indicates the number of streams of the other three users indicating that the number of streams is not greater than four, respectively.

The flow number allocation information used by the device in the implementation of the present invention uses the level 2 indication information to distinguish the flow number of the user, can accurately record the number of user streams in various situations, and reduces the flow of transmitting each user. The number of bits occupied by the number information further reduces the number of bits occupied by the entire stream number allocation information, and saves bit resources for information transmission and network communication resources.

The steps of a method or algorithm described in connection with the embodiments disclosed herein can be implemented directly in hardware, a software module executed by a processor, or a combination of both. The software module can be placed in random access memory (RAM), memory, read only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, removable disk, CD-ROM, or technical field. Any other form of storage medium known.

Claims

Rights request

A method for indicating a number of user flows, comprising: generating flow number allocation information according to flow number information allocated to a user, wherein the flow number allocation information comprises: a first indication identifier, used for indicating the determination Whether there is a user with a flow number greater than 4 in the user; a second indication identifier, configured to indicate a user whose flow number is greater than 4 when the first indication identifier indicates that a user with a flow number greater than 4; the flow number indication bit group Each of the stream number indicating bit groups is used to record the number of streams of the user corresponding to the stream number indicating bit group, where the number of streams of the user whose stream number is not greater than 4 and the stream of the user whose stream number is greater than 4 Number

The flow number allocation information is sent to the user.

The method according to claim 1, wherein the first indication identifier comprises 1 bit, and when the bit is the first value, the user has a flow number greater than 4, and the bit is the second value. Indicates that there are no users with more than 4 streams.

The method according to claim 1 or 2, wherein the second indication identifier comprises 2 bits, and when the first indication identifier indicates that the number of flows is greater than 4, if the second indicator identifier is 00 1, 01, 10, 11 respectively indicate that the first, second, third, and fourth users indicate that the number of streams is greater than four.

The method according to claim 3, wherein the number of streams indicates a group of bits, and the number of streams of the user indicating the bit group corresponding to the stream number indicating bit group is:

The number of streams corresponding to the user indicated by the second indication identifier indicated by the second indication identifier is 2 bits, and the numbers 5, 6, and 7 are respectively represented by 01, 10, and 11;

The number of streams corresponding to the user whose number of streams is not greater than 4 indicates that the bit group includes 2 bits, and 00, 01, 10, and 11 respectively indicate that the number of streams is 0, 1, 2, and 3.

The number of streams indicated by the user whose number of streams indicated by the second indication identifier is greater than 4 in the user indicates that the bit group includes 2 bits, and the number of streams 8 is represented by 00 respectively.

The method according to claim 1 or 2, wherein the flow number allocation information further comprises:

a user indication bit group, configured to determine a user whose number of streams of the user whose number of streams is not greater than 4 is 2 or 3, and the number of streams indicates a stream of users in the bit group corresponding to the number of streams of 2 or 3. The number indicates that the bit group records the number of streams of the user as 2 or 3.

The method according to claim 6, wherein the number of streams indicated by the user whose number of streams indicated by the second indication identifier is greater than 4 indicates that the bit group includes 2 bits, and 01 and 10 are used. And 11, 00, respectively, the number of streams 5, 6, 7, 8; the number of streams corresponding to the user whose number of streams is not greater than 4 indicates that the bit group includes 1 bit, wherein the user indicates the user determined by the bit group The number of streams corresponding to the user whose number of streams is not greater than 4 is 2 or 3. The bit number indicates that the number of streams of the user is 2 or 3. The number of streams corresponding to the number of other users whose number is not greater than 4 indicates the bit group record. The number of streams of users whose number of streams is not greater than 4.

The method according to claim 7, wherein the number of streams corresponding to the number of streams of the user whose number of streams is not greater than 4 indicates that the group of bits includes 1 bit, wherein the user indicates the stream of the user determined by the group of bits The number of flows corresponding to the user whose number of flows is 2 or 3 indicates that the number of flows of the user is 2 or 3, and includes: the number of flows corresponding to the user whose number of flows is not greater than 4 When the 1 bit in the bit group is the first value, the number of streams of the user is 2 or 3;

The number of flows corresponding to the user whose number of the flow is not greater than 4 indicates that the bit group records the number of flows of the user whose flow number is not greater than 4, and includes: the flow number indicates that the 1 bit in the bit group is 0, 1 respectively The number of streams indicates that the number of streams of the corresponding user is 0, 1.

9. An apparatus for indicating a number of user streams, the apparatus comprising:

The flow number allocation information generating unit is configured to generate flow number allocation information according to the flow number information allocated for the user, where the flow number distribution information includes: a first indication identifier, configured to indicate whether a flow exists in the user a user whose number is greater than 4; a second indication identifier, configured to indicate a user whose flow number is greater than 4 when the first indication identifier indicates that a user with a flow number greater than 4; the flow number indication bit group, each of the flow number indication The bit group is configured to record the number of streams of the user corresponding to the stream number indicating bit group, where the number of streams of the user whose number of streams is not greater than 4 and the number of streams of the user whose stream number is greater than 4; The number of streams is assigned information.

10. The apparatus according to claim 9, wherein the first indication identifier comprises 1 bit.

The stream number allocation information generating unit is configured to: when the bit is set to the first value, indicates that the user has a stream number greater than 4, or

The stream number allocation information generating unit is configured to indicate that when the bit is set to the second value, there is no user having a stream number greater than four.

The device according to claim 9 or 10, wherein the second indication identifier comprises 2 bits.

The flow number allocation information generating unit is configured to: when the first indication identifier indicates that the number of flows exists greater than 4, set the second indicator identifier to 00, 01, 10, and 11 3. Four users indicate that the number of streams is greater than four.

12. Apparatus according to claim 11 wherein:

The number of flows indicated by the user whose number of flows indicated by the second indication identifier is greater than 4 in the user indicates that the bit group includes 2 bits, and the flow number allocation information generating unit is configured to indicate the bit group in the flow number Set to 01, 10, 11 to indicate the number of streams 5, 6, and 7, respectively;

The number of streams indicating that the number of streams in the user is not greater than 4 indicates that the bit group includes 2 bits, and the stream number allocation information generating unit is configured to set the stream number indication bit group to 00, 01, 10, 11 indicates that the number of streams is 0, 1, 2, and 3, respectively.

The apparatus according to claim 9 or 10, wherein the stream number allocation information generating unit is further configured to determine a user indication bit group, where the user indication bit group is used to determine that the number of streams in the user is not greater than If the number of streams of the user of 4 is 2 or 3, the number of streams indicating that the number of streams corresponding to the number of streams is 2 or 3 in the bit group indicates that the number of streams of the user is 2 or 3.