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US 12,598,506 B2Granted
Transmit identifier to user priority / AC mapping
AssigneesSony Group Corporation, Sony Corporation of America
InventorsLiangxiao Xin, Mohamed Abouelseoud, Li-Hsiang Sun, Qing Xia
Life of this patent
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Abstract
Enhanced TID-to-UP mapping is performed which allows multiple TIDs to be mapped to the UPs of the same AC. Thus, a first STA can set TID-to-UP mapping for a second STA, whereby TID-to-UP mapping can differentiate the MSDUs or A-MSDUs that are transmitted. In addition, an MSDU/A-MSDU can be classified by TID first, then use TID-to-UP mapping to map it to the corresponding UP. In addition, an SCS traffic stream can assign a TID and a UP to that SCS traffic stream. The use of these enhanced mechanism can enhance low latency performance.
Claims23
An apparatus for wireless communication in a network, the apparatus comprising:
- (a) a wireless communication circuit, performing transmission of frames between the medium access control (MAC) layers of an IEEE 802.11 network as a wireless station (STA) which is a separate STA or as a STA in a multiple-link device (MLD), and operating as either a regular STA or an access point (AP) STA, for wirelessly communicating with other wireless stations (STAs) using carrier sense multiple access/collision avoidance (CSMA/CA) and enhanced distributed channel access (EDCA) mechanisms providing different access categories (ACs) for random channel access on links of a wireless local area network (WLAN);
- (b) a processor coupled to said wireless communication circuit for operating on the WLAN;
- (c) a non-transitory memory storing instructions executable by the processor for communicating with other STAs;
- and
- (d) wherein said instructions, when executed by the processor, perform steps of a wireless communications protocol for said wireless communication circuit, comprising:
- (i) transmitting a transmit identifier-to-user priority (TID-to-UP) mapping to a STA/AP that will be operating as a transmitting STA/AP, from a STA/AP that will be operating as a receiving STA/AP;
- (ii) wherein said transmit identifier-to-user priority (TID-to-UP) mapping comprises a request from the STA/AP that will be operating as the receiving STA/AP, and specifies which TIDs to map to which UPs;
- (iii) wherein the STA/AP that will be operating as a transmitting STA/AP acknowledges the request, and upon being accepted a TID-to-UP mapping response is sent;
- and
- (iv) classifying frames, by the STA/AP operating as the transmitting STA/AP, so that these frames are transmitted to the STA/AP operating as the receiving STA/AP
- according to the user priorities (UPs) of the TID-to-UP mapping request which was accepted from the STA/AP operating as the receiving STA/AP.
8 more elements
An apparatus for wireless communication in a network, the apparatus comprising:
- (a) a wireless communication circuit, performing transmission of frames between the medium access control (MAC) layers of an IEEE 802.11 network as a wireless station (STA) which is a separate STA or as a STA in a multiple-link device (MLD), and operating as either a regular STA or an access point (AP) STA, for wirelessly communicating with other wireless stations (STAs) using carrier sense multiple access/collision avoidance (CSMA/CA) and enhanced distributed channel access (EDCA) mechanisms providing different access categories (ACs) for random channel access on links of a wireless local area network (WLAN);
- (b) a processor coupled to said wireless communication circuit for operating on the WLAN;
- (c) a non-transitory memory storing instructions executable by the processor for communicating with other STAs;
- and
- (d) wherein said instructions, when executed by the processor, perform steps of a wireless communications protocol for said wireless communication circuit, comprising:
- (i) communicating to establish TID-to-UP mapping with a STA operating as a transmitting STA, from a STA operating as a receiving STA;
- (ii) classifying frames, by the STA operating as the transmitting STA, so that these frames are transmitted to the STA operating as the receiving STA;
- (iii) wherein said transmitting station utilizes the TID of a traffic stream (TS) for the frames, by the STA operating as the transmitter STA, responsive to determining that frames belong to the traffic stream of a user priority (UP);
- and
- (iv) utilizing the TID of a traffic category (TC) for the frames, by the STA operating as the transmitting STA, if the frames do not belong to the traffic stream of the UP, and thus are considered regular traffic.
7 more elements
An apparatus for wireless communication in a network, the apparatus comprising:
- (a) a wireless communication circuit, performing transmission of frames between the medium access control (MAC) layers of an IEEE 802.11 network as a wireless station (STA) which is a separate STA or as a STA in a multiple-link device (MLD), and operating as either a regular STA or an access point (AP) STA, for wirelessly communicating with other wireless stations (STAs) using carrier sense multiple access/collision avoidance (CSMA/CA) and enhanced distributed channel access (EDCA) mechanisms providing different access categories (ACs) for random channel access on links of a wireless local area network (WLAN);
- (b) a processor coupled to said wireless communication circuit for operating on the WLAN;
- (c) a non-transitory memory storing instructions executable by the processor for communicating with other STAs;
- and
- (d) wherein said instructions, when executed by the processor, perform steps of a wireless communications protocol for said wireless communication circuit, comprising:
- (i) performing communications in mapping more than two TIDs with values between 0 through 7 to a same AC;
- (ii) wherein a first portion of said more than two TIDs are utilized for regular traffic, which is not associated with traffic streams of user priorities (UPs) using the AC;
- and
- (iii) wherein a second portion of said more than two TIDs are utilized for the traffic streams.
6 more elements
Dependencies are inferred from the claim text.