Method, apparatus and network device for user data transmission

Patent metadata

Field	Value
Publication number	US-2016234657-A1
Application number	US-201615130598-A
Country	US
Kind code	A1
Filing date	Apr 15, 2016
Priority date	Oct 17, 2013
Publication date	Aug 11, 2016
Grant date	—

Abstract

A method, an apparatus and a network device for user data transmission are provided, where the method includes: transmitting a multicast frame for acquiring a user scheduling request to users in a user group, the multicast frame includes a long training sequence and a spread spectrum sequence(s) allocated to all users in the user group; receiving the user scheduling request(s) fed back by a user(s) with data transmission in the user group, the user scheduling request(s) is fed back by the user(s) using at least one of the long training sequence(s) and the spread spectrum sequence(s) allocated to the user(s); scheduling user data transmission according to the user scheduling request(s). According to embodiments of the present disclosure, the delay of users with data transmission is reduced, and the quality of service for the system is improved.

First claim

What is claimed is:

1 . A method for user data transmission, comprising:
transmitting a multicast frame for acquiring a user scheduling request(s) to users in a user group, wherein the multicast frame comprises a long training sequence and a spread spectrum sequence(s) allocated to all users in the user group; receiving the user scheduling request(s) fed back by a user(s) with data transmission in the user group, wherein the user scheduling request(s) is fed back by the user(s) using at least one of the long training sequence(s) and the spread spectrum sequence(s) allocated to the user(s); and scheduling user data transmission according to the user scheduling request(s).

2 . The method according to claim 1 , also comprising:
acquiring the user information and system information, wherein the system information includes: the quantity of users associated with an access point (AP); grouping the quantity of the users associated with the AP according to the user information, and setting user group IDs; and allocating a long training sequence(s) and a spread spectrum sequence(s) to users in each user group.

3 . The method according to claim 2 , wherein the user information comprises at least one of traffic type of user, association identifier information (AID) of user and location information of user.

4 . The method according to claim 2 , wherein the allocating the long training sequence(s) to the users in each user group includes:
allocating a same long training sequence to the users in all the user groups; or, selecting different base sequences as the long training sequences for different user groups, and using different shifts of a same base sequence as the long training sequence for different users in the same group.

5 . The method according to claim 2 , wherein the allocating the spread spectrum sequence(s) to the users in each user group comprises:
allocating orthogonal spread spectrum sequences to users in the same user group; and allocating orthogonal spread spectrum sequences or non-orthogonal spread spectrum sequences, or a same spread spectrum sequence to each user group in the different user groups.

6 . The method according to claim 1 , wherein the multicast frame also comprises an identifier indicating the user information of the user group.

7 . The method according to claim 6 , wherein the identifier indicating the user information of the user groups include a group ID of the user group, AID information of the users in the user groups, or a base sequence identifier(s) of the long training sequence(s) of the users in the user groups.

8 . The method according to claim 1 , also comprising:
receiving feedback information transmitted by a user(s) without data transmission in the user groups in response to the multicast frame.

9 . An apparatus for user data transmission, comprising:
a transmitting unit, configured to transmit a multicast frame for acquiring a user scheduling request(s) to users in a predetermined user group, wherein the multicast frame comprises a long training sequence(s) and a spread spectrum sequence(s) allocated to the users in the user group; a first receiving unit, configured to receive the user scheduling request(s) fed back by a user(s) with data transmission in the user group, wherein the user scheduling request(s) is fed back by the user(s) using at least one of the long training sequence(s) and the spread spectrum sequence(s) allocated to the user(s); and a scheduling unit, configured to schedule user data transmission according to the user scheduling request(s).

10 . The apparatus according to claim 9 , also comprising:
an acquiring unit, configured to acquire user information and system information, wherein the system information includes: the quantity of users associated with an access point (AP); a dividing unit, configured to group the quantity of users associated with the AP according to the user information, and set user group IDs; and an allocating unit, configured to allocate a long training sequence(s) and a spread spectrum sequence(s) to users in each user group.

11 . The apparatus according to claim 10 , wherein the user information acquired by the acquiring unit comprises at least one of traffic type of user, association identifier information (AID) of user and location information of user.

12 . The apparatus according to claim 10 , wherein the allocating unit includes:
a long training sequence allocating unit, configured to allocate a same long training sequence to the users in all the user groups; or, select different base sequences as the long training sequences for different user groups, and use different shifts of a same base sequence as the long training sequence for different users in the same group; and a spread spectrum sequence allocating unit, configured to allocate orthogonal spread spectrum sequences to users in the same user group; and allocate orthogonal spread spectrum sequences or non-orthogonal spread spectrum sequences, or a same spread spectrum sequence to each user group in the different user groups.

13 . The apparatus according to claim 12 , wherein the multicast frame transmitted by the transmitting unit also comprises an identifier indicating the user information of the user group.

14 . The apparatus according to claim 13 , wherein the identifier indicating the user information of the user groups transmitted by the transmitting unit comprises a group ID of the user group, AID information of the users in the user groups, or a base sequence identifier(s) of the long training sequence(s) of the users in the user groups.

15 . The apparatus according to claim 9 , also comprising:
a second receiving unit, configured to receive feedback information transmitted by a user(s) without data transmission in the user groups in response to the multicast frame.

16 . A network device, comprising:
a transmitter, configured to transmit a multicast frame for acquiring a user scheduling request(s) to users in a user group, wherein the multicast frame comprises a long training sequence and a spread spectrum sequence(s) allocated to all users in the user group; a receiver, configured to receive the user scheduling request(s) fed back by a user(s) with data transmission in the user group, wherein the user scheduling request(s) is fed back by the user(s) using at least one of the long training sequence(s) and the spread spectrum sequence(s) allocated to the user(s); and a processor, configured to schedule user data transmission according to the user scheduling request(s) received by the receiver.

17 . The network device according to claim 16 , wherein,
the receiver is also configured to receive user information and system information, wherein the system information includes: the quantity of users associated with an access point (AP); and the processor is also configured to group the quantity of the users associated with the AP according to the user information, and set user group IDs; and allocating a long training sequence(s) and a spread spectrum sequence(s) to users in each user group.

18 . The network device according to claim 17 , wherein,
the user information received by the receiver comprises traffic type of user, association identifier information (AID) of user or location information of user.

19 . The network device according to claim 17 , wherein,
the allocating the long training sequence(s) to the users in each user group by the processor, comprises: allocating a same long training sequence to the users in all the

Assignees

• Huawei Tech Co Ltd

Inventors

• Liu Yalin
• Zhang Jiayin
• Luo Yi

Classifications

• H04W74/06

  using polling · CPC title

• H04L47/24

  Traffic characterised by specific attributes, e.g. priority or QoS · CPC title

• H04L47/6275

  based on priority · CPC title

• H04W4/06 Primary

  Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services · CPC title

• H04L63/104

  Grouping of entities · CPC title